diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
new file mode 100644
index 000000000..6137bef2a
--- /dev/null
+++ b/.github/CODEOWNERS
@@ -0,0 +1,8 @@
+# Code owners file.
+# This file controls who is tagged for review for any given pull request.
+
+# For syntax help see:
+# https://help.github.com/en/github/creating-cloning-and-archiving-repositories/about-code-owners#codeowners-syntax
+
+# The java-samples-reviewers team is the default owner for samples changes
+samples/**/*.java       @googleapis/java-samples-reviewers
diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md
new file mode 100644
index 000000000..0c2c361e9
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -0,0 +1,51 @@
+---
+name: Bug report
+about: Create a report to help us improve
+
+---
+
+Thanks for stopping by to let us know something could be better!
+
+**PLEASE READ**: If you have a support contract with Google, please create an issue in the [support console](https://cloud.google.com/support/) instead of filing on GitHub. This will ensure a timely response.
+
+Please run down the following list and make sure you've tried the usual "quick fixes":
+
+  - Search the issues already opened: https://github.com/googleapis/java-dialogflow-cx/issues
+  - Check for answers on StackOverflow: http://stackoverflow.com/questions/tagged/google-cloud-platform
+
+If you are still having issues, please include as much information as possible:
+
+#### Environment details
+
+1. Specify the API at the beginning of the title. For example, "BigQuery: ...").
+   General, Core, and Other are also allowed as types
+2. OS type and version:
+3. Java version:
+4. dialogflow-cx version(s):
+
+#### Steps to reproduce
+
+  1. ?
+  2. ?
+
+#### Code example
+
+```java
+// example
+```
+
+#### Stack trace
+```
+Any relevant stacktrace here.
+```
+
+#### External references such as API reference guides
+
+- ?
+
+#### Any additional information below
+
+
+Following these steps guarantees the quickest resolution possible.
+
+Thanks!
diff --git a/.github/ISSUE_TEMPLATE/feature_request.md b/.github/ISSUE_TEMPLATE/feature_request.md
new file mode 100644
index 000000000..754e30c68
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@@ -0,0 +1,21 @@
+---
+name: Feature request
+about: Suggest an idea for this library
+
+---
+
+Thanks for stopping by to let us know something could be better!
+
+**PLEASE READ**: If you have a support contract with Google, please create an issue in the [support console](https://cloud.google.com/support/) instead of filing on GitHub. This will ensure a timely response.
+
+**Is your feature request related to a problem? Please describe.**
+What the problem is. Example: I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+What you want to happen.
+
+**Describe alternatives you've considered**
+Any alternative solutions or features you've considered.
+
+**Additional context**
+Any other context or screenshots about the feature request.
diff --git a/.github/ISSUE_TEMPLATE/support_request.md b/.github/ISSUE_TEMPLATE/support_request.md
new file mode 100644
index 000000000..995869032
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/support_request.md
@@ -0,0 +1,7 @@
+---
+name: Support request
+about: If you have a support contract with Google, please create an issue in the Google Cloud Support console.
+
+---
+
+**PLEASE READ**: If you have a support contract with Google, please create an issue in the [support console](https://cloud.google.com/support/) instead of filing on GitHub. This will ensure a timely response.
diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
new file mode 100644
index 000000000..edbd1ffcd
--- /dev/null
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -0,0 +1,7 @@
+Thank you for opening a Pull Request! Before submitting your PR, there are a few things you can do to make sure it goes smoothly:
+- [ ] Make sure to open an issue as a [bug/issue](https://github.com/googleapis/java-dialogflow-cx/issues/new/choose) before writing your code!  That way we can discuss the change, evaluate designs, and agree on the general idea
+- [ ] Ensure the tests and linter pass
+- [ ] Code coverage does not decrease (if any source code was changed)
+- [ ] Appropriate docs were updated (if necessary)
+
+Fixes #<issue_number_goes_here> ☕️
diff --git a/.github/release-please.yml b/.github/release-please.yml
new file mode 100644
index 000000000..dce2c8450
--- /dev/null
+++ b/.github/release-please.yml
@@ -0,0 +1,2 @@
+releaseType: java-yoshi
+bumpMinorPreMajor: true
\ No newline at end of file
diff --git a/.github/trusted-contribution.yml b/.github/trusted-contribution.yml
new file mode 100644
index 000000000..f247d5c78
--- /dev/null
+++ b/.github/trusted-contribution.yml
@@ -0,0 +1,2 @@
+trustedContributors:
+- renovate-bot
\ No newline at end of file
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
new file mode 100644
index 000000000..683022075
--- /dev/null
+++ b/.github/workflows/ci.yaml
@@ -0,0 +1,79 @@
+on:
+  push:
+    branches:
+    - master
+  pull_request:
+name: ci
+jobs:
+  units:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        java: [7, 8, 11]
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-java@v1
+      with:
+        java-version: ${{matrix.java}}
+    - run: java -version
+    - run: .kokoro/build.sh
+      env:
+        JOB_TYPE: test
+    - name: coverage
+      uses: codecov/codecov-action@v1
+      with:
+        name: actions ${{matrix.java}}
+  windows:
+    runs-on: windows-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-java@v1
+      with:
+        java-version: 8
+    - run: java -version
+    - run: .kokoro/build.bat
+      env:
+        JOB_TYPE: test
+  dependencies:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        java: [8, 11]
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-java@v1
+      with:
+        java-version: ${{matrix.java}}
+    - run: java -version
+    - run: .kokoro/dependencies.sh
+  linkage-monitor:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-java@v1
+      with:
+        java-version: 8
+    - run: java -version
+    - run: .kokoro/linkage-monitor.sh
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-java@v1
+      with:
+        java-version: 8
+    - run: java -version
+    - run: .kokoro/build.sh
+      env:
+        JOB_TYPE: lint
+  clirr:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-java@v1
+      with:
+        java-version: 8
+    - run: java -version
+    - run: .kokoro/build.sh
+      env:
+        JOB_TYPE: clirr
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 000000000..cc0bc34a3
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,17 @@
+# Maven
+target/
+
+# Eclipse
+.classpath
+.project
+.settings
+
+# Intellij
+*.iml
+.idea/
+
+# python utilities
+*.pyc
+__pycache__
+
+.flattened-pom.xml
\ No newline at end of file
diff --git a/.kokoro/build.bat b/.kokoro/build.bat
new file mode 100644
index 000000000..05826ad93
--- /dev/null
+++ b/.kokoro/build.bat
@@ -0,0 +1,3 @@
+:: See documentation in type-shell-output.bat
+
+"C:\Program Files\Git\bin\bash.exe" %~dp0build.sh
diff --git a/.kokoro/build.sh b/.kokoro/build.sh
new file mode 100755
index 000000000..fd1efbe9e
--- /dev/null
+++ b/.kokoro/build.sh
@@ -0,0 +1,111 @@
+#!/bin/bash
+# Copyright 2019 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -eo pipefail
+
+## Get the directory of the build script
+scriptDir=$(realpath $(dirname "${BASH_SOURCE[0]}"))
+## cd to the parent directory, i.e. the root of the git repo
+cd ${scriptDir}/..
+
+# include common functions
+source ${scriptDir}/common.sh
+
+# Print out Java version
+java -version
+echo ${JOB_TYPE}
+
+# attempt to install 3 times with exponential backoff (starting with 10 seconds)
+retry_with_backoff 3 10 \
+  mvn install -B -V \
+    -DskipTests=true \
+    -Dclirr.skip=true \
+    -Denforcer.skip=true \
+    -Dmaven.javadoc.skip=true \
+    -Dgcloud.download.skip=true \
+    -T 1C
+
+# if GOOGLE_APPLICATION_CREDIENTIALS is specified as a relative path prepend Kokoro root directory onto it
+if [[ ! -z "${GOOGLE_APPLICATION_CREDENTIALS}" && "${GOOGLE_APPLICATION_CREDENTIALS}" != /* ]]; then
+    export GOOGLE_APPLICATION_CREDENTIALS=$(realpath ${KOKORO_GFILE_DIR}/${GOOGLE_APPLICATION_CREDENTIALS})
+fi
+
+RETURN_CODE=0
+set +e
+
+case ${JOB_TYPE} in
+test)
+    mvn test -B -Dclirr.skip=true -Denforcer.skip=true
+    RETURN_CODE=$?
+    ;;
+lint)
+    mvn com.coveo:fmt-maven-plugin:check
+    RETURN_CODE=$?
+    ;;
+javadoc)
+    mvn javadoc:javadoc javadoc:test-javadoc
+    RETURN_CODE=$?
+    ;;
+integration)
+    mvn -B ${INTEGRATION_TEST_ARGS} \
+      -Penable-integration-tests \
+      -DtrimStackTrace=false \
+      -Dclirr.skip=true \
+      -Denforcer.skip=true \
+      -fae \
+      verify
+    RETURN_CODE=$?
+    ;;
+samples)
+    if [[ -f samples/pom.xml ]]
+    then
+        pushd samples
+        mvn -B \
+          -Penable-samples \
+          -DtrimStackTrace=false \
+          -Dclirr.skip=true \
+          -Denforcer.skip=true \
+          -fae \
+          verify
+        RETURN_CODE=$?
+        popd
+    else
+        echo "no sample pom.xml found - skipping sample tests"
+    fi
+    ;;
+clirr)
+    mvn -B -Denforcer.skip=true clirr:check
+    RETURN_CODE=$?
+    ;;
+*)
+    ;;
+esac
+
+if [ "${REPORT_COVERAGE}" == "true" ]
+then
+  bash ${KOKORO_GFILE_DIR}/codecov.sh
+fi
+
+# fix output location of logs
+bash .kokoro/coerce_logs.sh
+
+if [[ "${ENABLE_BUILD_COP}" == "true" ]]
+then
+    chmod +x ${KOKORO_GFILE_DIR}/linux_amd64/buildcop
+    ${KOKORO_GFILE_DIR}/linux_amd64/buildcop -repo=googleapis/java-dialogflow-cx
+fi
+
+echo "exiting with ${RETURN_CODE}"
+exit ${RETURN_CODE}
diff --git a/.kokoro/coerce_logs.sh b/.kokoro/coerce_logs.sh
new file mode 100755
index 000000000..5cf7ba49e
--- /dev/null
+++ b/.kokoro/coerce_logs.sh
@@ -0,0 +1,38 @@
+#!/bin/bash
+# Copyright 2019 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This script finds and moves sponge logs so that they can be found by placer
+# and are not flagged as flaky by sponge.
+
+set -eo pipefail
+
+## Get the directory of the build script
+scriptDir=$(realpath $(dirname "${BASH_SOURCE[0]}"))
+## cd to the parent directory, i.e. the root of the git repo
+cd ${scriptDir}/..
+
+job=$(basename ${KOKORO_JOB_NAME})
+
+echo "coercing sponge logs..."
+for xml in `find . -name *-sponge_log.xml`
+do
+  echo "processing ${xml}"
+  class=$(basename ${xml} | cut -d- -f2)
+  dir=$(dirname ${xml})/${job}/${class}
+  text=$(dirname ${xml})/${class}-sponge_log.txt
+  mkdir -p ${dir}
+  mv ${xml} ${dir}/sponge_log.xml
+  mv ${text} ${dir}/sponge_log.txt
+done
diff --git a/.kokoro/common.cfg b/.kokoro/common.cfg
new file mode 100644
index 000000000..6f989a138
--- /dev/null
+++ b/.kokoro/common.cfg
@@ -0,0 +1,13 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Download trampoline resources. These will be in ${KOKORO_GFILE_DIR}
+gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
+
+# All builds use the trampoline script to run in docker.
+build_file: "java-dialogflow-cx/.kokoro/trampoline.sh"
+
+# Tell the trampoline which build file to use.
+env_vars: {
+  key: "TRAMPOLINE_BUILD_FILE"
+  value: "github/java-dialogflow-cx/.kokoro/build.sh"
+}
diff --git a/.kokoro/common.sh b/.kokoro/common.sh
new file mode 100644
index 000000000..a8d0ea04d
--- /dev/null
+++ b/.kokoro/common.sh
@@ -0,0 +1,59 @@
+#!/bin/bash
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+function retry_with_backoff {
+    attempts_left=$1
+    sleep_seconds=$2
+    shift 2
+    command=$@
+
+
+    # store current flag state
+    flags=$-
+    
+    # allow a failures to continue
+    set +e
+    echo "${command}"
+    ${command}
+    exit_code=$?
+
+    # restore "e" flag
+    if [[ ${flags} =~ e ]]
+    then set -e
+    else set +e
+    fi
+
+    if [[ $exit_code == 0 ]]
+    then
+        return 0
+    fi
+
+    # failure
+    if [[ ${attempts_left} > 0 ]]
+    then
+        echo "failure (${exit_code}), sleeping ${sleep_seconds}..."
+        sleep ${sleep_seconds}
+        new_attempts=$((${attempts_left} - 1))
+        new_sleep=$((${sleep_seconds} * 2))
+        retry_with_backoff ${new_attempts} ${new_sleep} ${command}
+    fi
+
+    return $exit_code
+}
+
+## Helper functionss
+function now() { date +"%Y-%m-%d %H:%M:%S" | tr -d '\n'; }
+function msg() { println "$*" >&2; }
+function println() { printf '%s\n' "$(now) $*"; }
\ No newline at end of file
diff --git a/.kokoro/continuous/common.cfg b/.kokoro/continuous/common.cfg
new file mode 100644
index 000000000..9c0f3e5f4
--- /dev/null
+++ b/.kokoro/continuous/common.cfg
@@ -0,0 +1,25 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Build logs will be here
+action {
+  define_artifacts {
+    regex: "**/*sponge_log.xml"
+    regex: "**/*sponge_log.txt"
+  }
+}
+
+# Download trampoline resources.
+gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
+
+# Use the trampoline script to run in docker.
+build_file: "java-dialogflow-cx/.kokoro/trampoline.sh"
+
+env_vars: {
+  key: "TRAMPOLINE_BUILD_FILE"
+  value: "github/java-dialogflow-cx/.kokoro/build.sh"
+}
+
+env_vars: {
+  key: "JOB_TYPE"
+  value: "test"
+}
diff --git a/.kokoro/continuous/java8.cfg b/.kokoro/continuous/java8.cfg
new file mode 100644
index 000000000..495cc7bac
--- /dev/null
+++ b/.kokoro/continuous/java8.cfg
@@ -0,0 +1,12 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java8"
+}
+
+env_vars: {
+  key: "REPORT_COVERAGE"
+  value: "true"
+}
diff --git a/.kokoro/dependencies.sh b/.kokoro/dependencies.sh
new file mode 100755
index 000000000..c91e5a569
--- /dev/null
+++ b/.kokoro/dependencies.sh
@@ -0,0 +1,89 @@
+#!/bin/bash
+# Copyright 2019 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -eo pipefail
+
+## Get the directory of the build script
+scriptDir=$(realpath $(dirname "${BASH_SOURCE[0]}"))
+## cd to the parent directory, i.e. the root of the git repo
+cd ${scriptDir}/..
+
+# include common functions
+source ${scriptDir}/common.sh
+
+# Print out Java
+java -version
+echo $JOB_TYPE
+
+export MAVEN_OPTS="-Xmx1024m -XX:MaxPermSize=128m"
+
+# this should run maven enforcer
+retry_with_backoff 3 10 \
+  mvn install -B -V \
+    -DskipTests=true \
+    -Dclirr.skip=true
+
+mvn -B dependency:analyze -DfailOnWarning=true
+
+echo "****************** DEPENDENCY LIST COMPLETENESS CHECK *******************"
+## Run dependency list completeness check
+function completenessCheck() {
+  # Output dep list with compile scope generated using the original pom
+  # Running mvn dependency:list on Java versions that support modules will also include the module of the dependency.
+  # This is stripped from the output as it is not present in the flattened pom.
+  # Only dependencies with 'compile' or 'runtime' scope are included from original dependency list.
+  msg "Generating dependency list using original pom..."
+  mvn dependency:list -f pom.xml -DincludeScope=runtime -Dsort=true | grep '\[INFO]    .*:.*:.*:.*:.*' | sed -e s/\\s--\\smodule.*// >.org-list.txt
+
+  # Output dep list generated using the flattened pom (only 'compile' and 'runtime' scopes)
+  msg "Generating dependency list using flattened pom..."
+  mvn dependency:list -f .flattened-pom.xml -DincludeScope=runtime -Dsort=true | grep '\[INFO]    .*:.*:.*:.*:.*' >.new-list.txt
+
+  # Compare two dependency lists
+  msg "Comparing dependency lists..."
+  diff .org-list.txt .new-list.txt >.diff.txt
+  if [[ $? == 0 ]]
+    then
+      msg "Success. No diff!"
+  else
+    msg "Diff found. See below: "
+    msg "You can also check .diff.txt file located in $1."
+    cat .diff.txt
+    return 1
+  fi
+}
+
+# Allow failures to continue running the script
+set +e
+
+error_count=0
+for path in $(find -name ".flattened-pom.xml")
+do
+  # Check flattened pom in each dir that contains it for completeness
+  dir=$(dirname "$path")
+  pushd "$dir"
+  completenessCheck "$dir"
+  error_count=$(($error_count + $?))
+  popd
+done
+
+if [[ $error_count == 0 ]]
+then
+  msg "All checks passed."
+  exit 0
+else
+  msg "Errors found. See log statements above."
+  exit 1
+fi
\ No newline at end of file
diff --git a/.kokoro/linkage-monitor.sh b/.kokoro/linkage-monitor.sh
new file mode 100755
index 000000000..759ab4e2c
--- /dev/null
+++ b/.kokoro/linkage-monitor.sh
@@ -0,0 +1,46 @@
+#!/bin/bash
+# Copyright 2019 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -eo pipefail
+# Display commands being run.
+set -x
+
+## Get the directory of the build script
+scriptDir=$(realpath $(dirname "${BASH_SOURCE[0]}"))
+## cd to the parent directory, i.e. the root of the git repo
+cd ${scriptDir}/..
+
+# include common functions
+source ${scriptDir}/common.sh
+
+# Print out Java version
+java -version
+echo ${JOB_TYPE}
+
+# attempt to install 3 times with exponential backoff (starting with 10 seconds)
+retry_with_backoff 3 10 \
+  mvn install -B -V \
+    -DskipTests=true \
+    -Dclirr.skip=true \
+    -Denforcer.skip=true \
+    -Dmaven.javadoc.skip=true \
+    -Dgcloud.download.skip=true
+
+# Kokoro job cloud-opensource-java/ubuntu/linkage-monitor-gcs creates this JAR
+JAR=linkage-monitor-latest-all-deps.jar
+curl -v -O "https://storage.googleapis.com/cloud-opensource-java-linkage-monitor/${JAR}"
+
+# Fails if there's new linkage errors compared with baseline
+java -jar ${JAR} com.google.cloud:libraries-bom
diff --git a/.kokoro/nightly/common.cfg b/.kokoro/nightly/common.cfg
new file mode 100644
index 000000000..9c0f3e5f4
--- /dev/null
+++ b/.kokoro/nightly/common.cfg
@@ -0,0 +1,25 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Build logs will be here
+action {
+  define_artifacts {
+    regex: "**/*sponge_log.xml"
+    regex: "**/*sponge_log.txt"
+  }
+}
+
+# Download trampoline resources.
+gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
+
+# Use the trampoline script to run in docker.
+build_file: "java-dialogflow-cx/.kokoro/trampoline.sh"
+
+env_vars: {
+  key: "TRAMPOLINE_BUILD_FILE"
+  value: "github/java-dialogflow-cx/.kokoro/build.sh"
+}
+
+env_vars: {
+  key: "JOB_TYPE"
+  value: "test"
+}
diff --git a/.kokoro/nightly/integration.cfg b/.kokoro/nightly/integration.cfg
new file mode 100644
index 000000000..0048c8ece
--- /dev/null
+++ b/.kokoro/nightly/integration.cfg
@@ -0,0 +1,37 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java8"
+}
+
+env_vars: {
+  key: "JOB_TYPE"
+  value: "integration"
+}
+# TODO: remove this after we've migrated all tests and scripts
+env_vars: {
+  key: "GCLOUD_PROJECT"
+  value: "gcloud-devel"
+}
+
+env_vars: {
+  key: "GOOGLE_CLOUD_PROJECT"
+  value: "gcloud-devel"
+}
+
+env_vars: {
+  key: "ENABLE_BUILD_COP"
+  value: "true"
+}
+
+env_vars: {
+  key: "GOOGLE_APPLICATION_CREDENTIALS"
+  value: "secret_manager/java-it-service-account"
+}
+
+env_vars: {
+  key: "SECRET_MANAGER_KEYS"
+  value: "java-it-service-account"
+}
diff --git a/.kokoro/nightly/java11.cfg b/.kokoro/nightly/java11.cfg
new file mode 100644
index 000000000..709f2b4c7
--- /dev/null
+++ b/.kokoro/nightly/java11.cfg
@@ -0,0 +1,7 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java11"
+}
diff --git a/.kokoro/nightly/java7.cfg b/.kokoro/nightly/java7.cfg
new file mode 100644
index 000000000..cb24f44ee
--- /dev/null
+++ b/.kokoro/nightly/java7.cfg
@@ -0,0 +1,7 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java7"
+}
diff --git a/.kokoro/nightly/java8-osx.cfg b/.kokoro/nightly/java8-osx.cfg
new file mode 100644
index 000000000..91cdb80e9
--- /dev/null
+++ b/.kokoro/nightly/java8-osx.cfg
@@ -0,0 +1,3 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+build_file: "java-dialogflow-cx/.kokoro/build.sh"
diff --git a/.kokoro/nightly/java8-win.cfg b/.kokoro/nightly/java8-win.cfg
new file mode 100644
index 000000000..b6a9206c7
--- /dev/null
+++ b/.kokoro/nightly/java8-win.cfg
@@ -0,0 +1,3 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+build_file: "java-dialogflow-cx/.kokoro/build.bat"
diff --git a/.kokoro/nightly/java8.cfg b/.kokoro/nightly/java8.cfg
new file mode 100644
index 000000000..495cc7bac
--- /dev/null
+++ b/.kokoro/nightly/java8.cfg
@@ -0,0 +1,12 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java8"
+}
+
+env_vars: {
+  key: "REPORT_COVERAGE"
+  value: "true"
+}
diff --git a/.kokoro/nightly/samples.cfg b/.kokoro/nightly/samples.cfg
new file mode 100644
index 000000000..f25429314
--- /dev/null
+++ b/.kokoro/nightly/samples.cfg
@@ -0,0 +1,38 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java8"
+}
+
+env_vars: {
+  key: "JOB_TYPE"
+  value: "samples"
+}
+
+# TODO: remove this after we've migrated all tests and scripts
+env_vars: {
+  key: "GCLOUD_PROJECT"
+  value: "java-docs-samples-testing"
+}
+
+env_vars: {
+  key: "GOOGLE_CLOUD_PROJECT"
+  value: "java-docs-samples-testing"
+}
+
+env_vars: {
+  key: "GOOGLE_APPLICATION_CREDENTIALS"
+  value: "secret_manager/java-docs-samples-service-account"
+}
+
+env_vars: {
+  key: "SECRET_MANAGER_KEYS"
+  value: "java-docs-samples-service-account"
+}
+
+env_vars: {
+  key: "ENABLE_BUILD_COP"
+  value: "true"
+}
diff --git a/.kokoro/populate-secrets.sh b/.kokoro/populate-secrets.sh
new file mode 100755
index 000000000..f52514257
--- /dev/null
+++ b/.kokoro/populate-secrets.sh
@@ -0,0 +1,43 @@
+#!/bin/bash
+# Copyright 2020 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -eo pipefail
+
+function now { date +"%Y-%m-%d %H:%M:%S" | tr -d '\n' ;}
+function msg { println "$*" >&2 ;}
+function println { printf '%s\n' "$(now) $*" ;}
+
+
+# Populates requested secrets set in SECRET_MANAGER_KEYS from service account:
+# kokoro-trampoline@cloud-devrel-kokoro-resources.iam.gserviceaccount.com
+SECRET_LOCATION="${KOKORO_GFILE_DIR}/secret_manager"
+msg "Creating folder on disk for secrets: ${SECRET_LOCATION}"
+mkdir -p ${SECRET_LOCATION}
+for key in $(echo ${SECRET_MANAGER_KEYS} | sed "s/,/ /g")
+do
+  msg "Retrieving secret ${key}"
+  docker run --entrypoint=gcloud \
+    --volume=${KOKORO_GFILE_DIR}:${KOKORO_GFILE_DIR} \
+    gcr.io/google.com/cloudsdktool/cloud-sdk \
+    secrets versions access latest \
+    --project cloud-devrel-kokoro-resources \
+    --secret ${key} > \
+    "${SECRET_LOCATION}/${key}"
+  if [[ $? == 0 ]]; then
+    msg "Secret written to ${SECRET_LOCATION}/${key}"
+  else
+    msg "Error retrieving secret ${key}"
+  fi
+done
diff --git a/.kokoro/presubmit/clirr.cfg b/.kokoro/presubmit/clirr.cfg
new file mode 100644
index 000000000..ec572442e
--- /dev/null
+++ b/.kokoro/presubmit/clirr.cfg
@@ -0,0 +1,13 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java8"
+}
+
+env_vars: {
+  key: "JOB_TYPE"
+  value: "clirr"
+}
\ No newline at end of file
diff --git a/.kokoro/presubmit/common.cfg b/.kokoro/presubmit/common.cfg
new file mode 100644
index 000000000..e1dfb1935
--- /dev/null
+++ b/.kokoro/presubmit/common.cfg
@@ -0,0 +1,34 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Build logs will be here
+action {
+  define_artifacts {
+    regex: "**/*sponge_log.xml"
+    regex: "**/*sponge_log.txt"
+  }
+}
+
+# Download trampoline resources.
+gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
+
+# Use the trampoline script to run in docker.
+build_file: "java-dialogflow-cx/.kokoro/trampoline.sh"
+
+env_vars: {
+  key: "TRAMPOLINE_BUILD_FILE"
+  value: "github/java-dialogflow-cx/.kokoro/build.sh"
+}
+
+env_vars: {
+  key: "JOB_TYPE"
+  value: "test"
+}
+
+before_action {
+  fetch_keystore {
+    keystore_resource {
+      keystore_config_id: 73713
+      keyname: "dpebot_codecov_token"
+    }
+  }
+}
diff --git a/.kokoro/presubmit/dependencies.cfg b/.kokoro/presubmit/dependencies.cfg
new file mode 100644
index 000000000..6c9757794
--- /dev/null
+++ b/.kokoro/presubmit/dependencies.cfg
@@ -0,0 +1,12 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java8"
+}
+
+env_vars: {
+  key: "TRAMPOLINE_BUILD_FILE"
+  value: "github/java-dialogflow-cx/.kokoro/dependencies.sh"
+}
diff --git a/.kokoro/presubmit/integration.cfg b/.kokoro/presubmit/integration.cfg
new file mode 100644
index 000000000..dded67a9d
--- /dev/null
+++ b/.kokoro/presubmit/integration.cfg
@@ -0,0 +1,33 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java8"
+}
+
+env_vars: {
+  key: "JOB_TYPE"
+  value: "integration"
+}
+
+# TODO: remove this after we've migrated all tests and scripts
+env_vars: {
+  key: "GCLOUD_PROJECT"
+  value: "gcloud-devel"
+}
+
+env_vars: {
+  key: "GOOGLE_CLOUD_PROJECT"
+  value: "gcloud-devel"
+}
+
+env_vars: {
+  key: "GOOGLE_APPLICATION_CREDENTIALS"
+  value: "secret_manager/java-it-service-account"
+}
+
+env_vars: {
+  key: "SECRET_MANAGER_KEYS"
+  value: "java-it-service-account"
+}
diff --git a/.kokoro/presubmit/java11.cfg b/.kokoro/presubmit/java11.cfg
new file mode 100644
index 000000000..709f2b4c7
--- /dev/null
+++ b/.kokoro/presubmit/java11.cfg
@@ -0,0 +1,7 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java11"
+}
diff --git a/.kokoro/presubmit/java7.cfg b/.kokoro/presubmit/java7.cfg
new file mode 100644
index 000000000..cb24f44ee
--- /dev/null
+++ b/.kokoro/presubmit/java7.cfg
@@ -0,0 +1,7 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java7"
+}
diff --git a/.kokoro/presubmit/java8-osx.cfg b/.kokoro/presubmit/java8-osx.cfg
new file mode 100644
index 000000000..91cdb80e9
--- /dev/null
+++ b/.kokoro/presubmit/java8-osx.cfg
@@ -0,0 +1,3 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+build_file: "java-dialogflow-cx/.kokoro/build.sh"
diff --git a/.kokoro/presubmit/java8-win.cfg b/.kokoro/presubmit/java8-win.cfg
new file mode 100644
index 000000000..b6a9206c7
--- /dev/null
+++ b/.kokoro/presubmit/java8-win.cfg
@@ -0,0 +1,3 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+build_file: "java-dialogflow-cx/.kokoro/build.bat"
diff --git a/.kokoro/presubmit/java8.cfg b/.kokoro/presubmit/java8.cfg
new file mode 100644
index 000000000..495cc7bac
--- /dev/null
+++ b/.kokoro/presubmit/java8.cfg
@@ -0,0 +1,12 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java8"
+}
+
+env_vars: {
+  key: "REPORT_COVERAGE"
+  value: "true"
+}
diff --git a/.kokoro/presubmit/linkage-monitor.cfg b/.kokoro/presubmit/linkage-monitor.cfg
new file mode 100644
index 000000000..3e1fe97a7
--- /dev/null
+++ b/.kokoro/presubmit/linkage-monitor.cfg
@@ -0,0 +1,12 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java8"
+}
+
+env_vars: {
+  key: "TRAMPOLINE_BUILD_FILE"
+  value: "github/java-dialogflow-cx/.kokoro/linkage-monitor.sh"
+}
\ No newline at end of file
diff --git a/.kokoro/presubmit/lint.cfg b/.kokoro/presubmit/lint.cfg
new file mode 100644
index 000000000..6d323c8ae
--- /dev/null
+++ b/.kokoro/presubmit/lint.cfg
@@ -0,0 +1,13 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java8"
+}
+
+env_vars: {
+  key: "JOB_TYPE"
+  value: "lint"
+}
\ No newline at end of file
diff --git a/.kokoro/presubmit/samples.cfg b/.kokoro/presubmit/samples.cfg
new file mode 100644
index 000000000..01e096004
--- /dev/null
+++ b/.kokoro/presubmit/samples.cfg
@@ -0,0 +1,33 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java8"
+}
+
+env_vars: {
+  key: "JOB_TYPE"
+  value: "samples"
+}
+
+# TODO: remove this after we've migrated all tests and scripts
+env_vars: {
+  key: "GCLOUD_PROJECT"
+  value: "java-docs-samples-testing"
+}
+
+env_vars: {
+  key: "GOOGLE_CLOUD_PROJECT"
+  value: "java-docs-samples-testing"
+}
+
+env_vars: {
+  key: "GOOGLE_APPLICATION_CREDENTIALS"
+  value: "secret_manager/java-docs-samples-service-account"
+}
+
+env_vars: {
+  key: "SECRET_MANAGER_KEYS"
+  value: "java-docs-samples-service-account"
+}
\ No newline at end of file
diff --git a/.kokoro/release/bump_snapshot.cfg b/.kokoro/release/bump_snapshot.cfg
new file mode 100644
index 000000000..e71978bd9
--- /dev/null
+++ b/.kokoro/release/bump_snapshot.cfg
@@ -0,0 +1,53 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Build logs will be here
+action {
+  define_artifacts {
+    regex: "**/*sponge_log.xml"
+  }
+}
+
+# Download trampoline resources.
+gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
+
+# Use the trampoline script to run in docker.
+build_file: "java-dialogflow-cx/.kokoro/trampoline.sh"
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/node:10-user"
+}
+
+env_vars: {
+  key: "TRAMPOLINE_BUILD_FILE"
+  value: "github/java-dialogflow-cx/.kokoro/release/bump_snapshot.sh"
+}
+
+# tokens used by release-please to keep an up-to-date release PR.
+before_action {
+  fetch_keystore {
+    keystore_resource {
+      keystore_config_id: 73713
+      keyname: "github-magic-proxy-key-release-please"
+    }
+  }
+}
+
+before_action {
+  fetch_keystore {
+    keystore_resource {
+      keystore_config_id: 73713
+      keyname: "github-magic-proxy-token-release-please"
+    }
+  }
+}
+
+before_action {
+  fetch_keystore {
+    keystore_resource {
+      keystore_config_id: 73713
+      keyname: "github-magic-proxy-url-release-please"
+    }
+  }
+}
diff --git a/.kokoro/release/common.cfg b/.kokoro/release/common.cfg
new file mode 100644
index 000000000..02a310b9b
--- /dev/null
+++ b/.kokoro/release/common.cfg
@@ -0,0 +1,49 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Download trampoline resources.
+gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
+
+# Use the trampoline script to run in docker.
+build_file: "java-dialogflow-cx/.kokoro/trampoline.sh"
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java8"
+}
+
+before_action {
+  fetch_keystore {
+    keystore_resource {
+      keystore_config_id: 70247
+      keyname: "maven-gpg-keyring"
+    }
+  }
+}
+
+before_action {
+  fetch_keystore {
+    keystore_resource {
+      keystore_config_id: 70247
+      keyname: "maven-gpg-passphrase"
+    }
+  }
+}
+
+before_action {
+  fetch_keystore {
+    keystore_resource {
+      keystore_config_id: 70247
+      keyname: "maven-gpg-pubkeyring"
+    }
+  }
+}
+
+before_action {
+  fetch_keystore {
+    keystore_resource {
+      keystore_config_id: 70247
+      keyname: "sonatype-credentials"
+    }
+  }
+}
diff --git a/.kokoro/release/common.sh b/.kokoro/release/common.sh
new file mode 100755
index 000000000..6e3f65999
--- /dev/null
+++ b/.kokoro/release/common.sh
@@ -0,0 +1,50 @@
+#!/bin/bash
+# Copyright 2018 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -eo pipefail
+
+# Get secrets from keystore and set and environment variables
+setup_environment_secrets() {
+  export GPG_PASSPHRASE=$(cat ${KOKORO_KEYSTORE_DIR}/70247_maven-gpg-passphrase)
+  export GPG_TTY=$(tty)
+  export GPG_HOMEDIR=/gpg
+  mkdir $GPG_HOMEDIR
+  mv ${KOKORO_KEYSTORE_DIR}/70247_maven-gpg-pubkeyring $GPG_HOMEDIR/pubring.gpg
+  mv ${KOKORO_KEYSTORE_DIR}/70247_maven-gpg-keyring $GPG_HOMEDIR/secring.gpg
+  export SONATYPE_USERNAME=$(cat ${KOKORO_KEYSTORE_DIR}/70247_sonatype-credentials | cut -f1 -d'|')
+  export SONATYPE_PASSWORD=$(cat ${KOKORO_KEYSTORE_DIR}/70247_sonatype-credentials | cut -f2 -d'|')
+}
+
+create_settings_xml_file() {
+  echo "<settings>
+  <servers>
+    <server>
+      <id>ossrh</id>
+      <username>${SONATYPE_USERNAME}</username>
+      <password>${SONATYPE_PASSWORD}</password>
+    </server>
+    <server>
+      <id>sonatype-nexus-staging</id>
+      <username>${SONATYPE_USERNAME}</username>
+      <password>${SONATYPE_PASSWORD}</password>
+    </server>
+    <server>
+      <id>sonatype-nexus-snapshots</id>
+      <username>${SONATYPE_USERNAME}</username>
+      <password>${SONATYPE_PASSWORD}</password>
+    </server>
+  </servers>
+</settings>" > $1
+}
\ No newline at end of file
diff --git a/.kokoro/release/drop.cfg b/.kokoro/release/drop.cfg
new file mode 100644
index 000000000..c44d3af71
--- /dev/null
+++ b/.kokoro/release/drop.cfg
@@ -0,0 +1,6 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+  key: "TRAMPOLINE_BUILD_FILE"
+  value: "github/java-dialogflow-cx/.kokoro/release/drop.sh"
+}
diff --git a/.kokoro/release/drop.sh b/.kokoro/release/drop.sh
new file mode 100755
index 000000000..5c4551efa
--- /dev/null
+++ b/.kokoro/release/drop.sh
@@ -0,0 +1,32 @@
+#!/bin/bash
+# Copyright 2018 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -eo pipefail
+
+# STAGING_REPOSITORY_ID must be set
+if [ -z "${STAGING_REPOSITORY_ID}" ]; then
+  echo "Missing STAGING_REPOSITORY_ID environment variable"
+  exit 1
+fi
+
+source $(dirname "$0")/common.sh
+pushd $(dirname "$0")/../../
+
+setup_environment_secrets
+create_settings_xml_file "settings.xml"
+
+mvn nexus-staging:drop -B \
+  --settings=settings.xml \
+  -DstagingRepositoryId=${STAGING_REPOSITORY_ID}
diff --git a/.kokoro/release/promote.cfg b/.kokoro/release/promote.cfg
new file mode 100644
index 000000000..e90fea37e
--- /dev/null
+++ b/.kokoro/release/promote.cfg
@@ -0,0 +1,6 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+  key: "TRAMPOLINE_BUILD_FILE"
+  value: "github/java-dialogflow-cx/.kokoro/release/promote.sh"
+}
diff --git a/.kokoro/release/promote.sh b/.kokoro/release/promote.sh
new file mode 100755
index 000000000..1fa95fa53
--- /dev/null
+++ b/.kokoro/release/promote.sh
@@ -0,0 +1,34 @@
+#!/bin/bash
+# Copyright 2018 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -eo pipefail
+
+# STAGING_REPOSITORY_ID must be set
+if [ -z "${STAGING_REPOSITORY_ID}" ]; then
+  echo "Missing STAGING_REPOSITORY_ID environment variable"
+  exit 1
+fi
+
+source $(dirname "$0")/common.sh
+
+pushd $(dirname "$0")/../../
+
+setup_environment_secrets
+create_settings_xml_file "settings.xml"
+
+mvn nexus-staging:release -B \
+  -DperformRelease=true \
+  --settings=settings.xml \
+  -DstagingRepositoryId=${STAGING_REPOSITORY_ID}
diff --git a/.kokoro/release/publish_javadoc.cfg b/.kokoro/release/publish_javadoc.cfg
new file mode 100644
index 000000000..cc4e0d47a
--- /dev/null
+++ b/.kokoro/release/publish_javadoc.cfg
@@ -0,0 +1,29 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/doc-templates/"
+
+env_vars: {
+  key: "STAGING_BUCKET"
+  value: "docs-staging"
+}
+
+env_vars: {
+  key: "STAGING_BUCKET_V2"
+  value: "docs-staging-v2-staging"
+  # Production will be at: docs-staging-v2
+}
+
+env_vars: {
+  key: "TRAMPOLINE_BUILD_FILE"
+  value: "github/java-dialogflow-cx/.kokoro/release/publish_javadoc.sh"
+}
+
+
+before_action {
+  fetch_keystore {
+    keystore_resource {
+      keystore_config_id: 73713
+      keyname: "docuploader_service_account"
+    }
+  }
+}
diff --git a/.kokoro/release/publish_javadoc.sh b/.kokoro/release/publish_javadoc.sh
new file mode 100755
index 000000000..39626584b
--- /dev/null
+++ b/.kokoro/release/publish_javadoc.sh
@@ -0,0 +1,76 @@
+#!/bin/bash
+# Copyright 2019 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -eo pipefail
+
+if [[ -z "${CREDENTIALS}" ]]; then
+  CREDENTIALS=${KOKORO_KEYSTORE_DIR}/73713_docuploader_service_account
+fi
+
+if [[ -z "${STAGING_BUCKET}" ]]; then
+  echo "Need to set STAGING_BUCKET environment variable"
+  exit 1
+fi
+
+if [[ -z "${STAGING_BUCKET_V2}" ]]; then
+  echo "Need to set STAGING_BUCKET_V2 environment variable"
+  exit 1
+fi
+
+# work from the git root directory
+pushd $(dirname "$0")/../../
+
+# install docuploader package
+python3 -m pip install gcp-docuploader
+
+# compile all packages
+mvn clean install -B -q -DskipTests=true
+
+NAME=google-cloud-dialogflow-cx
+VERSION=$(grep ${NAME}: versions.txt | cut -d: -f3)
+
+# build the docs
+mvn site -B -q
+
+pushd target/site/apidocs
+
+# create metadata
+python3 -m docuploader create-metadata \
+  --name ${NAME} \
+  --version ${VERSION} \
+  --language java
+
+# upload docs
+python3 -m docuploader upload . \
+  --credentials ${CREDENTIALS} \
+  --staging-bucket ${STAGING_BUCKET}
+
+popd
+
+# V2
+mvn clean site -B -q -Ddevsite.template="${KOKORO_GFILE_DIR}/java/"
+
+pushd target/devsite
+
+# create metadata
+python3 -m docuploader create-metadata \
+  --name ${NAME} \
+  --version ${VERSION} \
+  --language java
+
+# upload docs
+python3 -m docuploader upload . \
+  --credentials ${CREDENTIALS} \
+  --staging-bucket ${STAGING_BUCKET_V2}
diff --git a/.kokoro/release/snapshot.cfg b/.kokoro/release/snapshot.cfg
new file mode 100644
index 000000000..4999d85e5
--- /dev/null
+++ b/.kokoro/release/snapshot.cfg
@@ -0,0 +1,6 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+  key: "TRAMPOLINE_BUILD_FILE"
+  value: "github/java-dialogflow-cx/.kokoro/release/snapshot.sh"
+}
\ No newline at end of file
diff --git a/.kokoro/release/snapshot.sh b/.kokoro/release/snapshot.sh
new file mode 100755
index 000000000..098168a73
--- /dev/null
+++ b/.kokoro/release/snapshot.sh
@@ -0,0 +1,33 @@
+#!/bin/bash
+# Copyright 2019 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -eo pipefail
+
+source $(dirname "$0")/common.sh
+MAVEN_SETTINGS_FILE=$(realpath $(dirname "$0")/../../)/settings.xml
+pushd $(dirname "$0")/../../
+
+# ensure we're trying to push a snapshot (no-result returns non-zero exit code)
+grep SNAPSHOT versions.txt
+
+setup_environment_secrets
+create_settings_xml_file "settings.xml"
+
+mvn clean install deploy -B \
+  --settings ${MAVEN_SETTINGS_FILE} \
+  -DperformRelease=true \
+  -Dgpg.executable=gpg \
+  -Dgpg.passphrase=${GPG_PASSPHRASE} \
+  -Dgpg.homedir=${GPG_HOMEDIR}
diff --git a/.kokoro/release/stage.cfg b/.kokoro/release/stage.cfg
new file mode 100644
index 000000000..24aed2ce0
--- /dev/null
+++ b/.kokoro/release/stage.cfg
@@ -0,0 +1,44 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+  key: "TRAMPOLINE_BUILD_FILE"
+  value: "github/java-dialogflow-cx/.kokoro/release/stage.sh"
+}
+
+# Need to save the properties file
+action {
+  define_artifacts {
+    regex: "github/java-dialogflow-cx/target/nexus-staging/staging/*.properties"
+    strip_prefix: "github/java-dialogflow-cx"
+  }
+}
+
+# Fetch the token needed for reporting release status to GitHub
+before_action {
+  fetch_keystore {
+    keystore_resource {
+      keystore_config_id: 73713
+      keyname: "yoshi-automation-github-key"
+    }
+  }
+}
+
+# Fetch magictoken to use with Magic Github Proxy
+before_action {
+  fetch_keystore {
+    keystore_resource {
+      keystore_config_id: 73713
+      keyname: "releasetool-magictoken"
+    }
+  }
+}
+
+# Fetch api key to use with Magic Github Proxy
+before_action {
+  fetch_keystore {
+    keystore_resource {
+      keystore_config_id: 73713
+      keyname: "magic-github-proxy-api-key"
+    }
+  }
+}
diff --git a/.kokoro/release/stage.sh b/.kokoro/release/stage.sh
new file mode 100755
index 000000000..3c482cbc5
--- /dev/null
+++ b/.kokoro/release/stage.sh
@@ -0,0 +1,42 @@
+#!/bin/bash
+# Copyright 2018 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -eo pipefail
+
+# Start the releasetool reporter
+python3 -m pip install gcp-releasetool
+python3 -m releasetool publish-reporter-script > /tmp/publisher-script; source /tmp/publisher-script
+
+source $(dirname "$0")/common.sh
+MAVEN_SETTINGS_FILE=$(realpath $(dirname "$0")/../../)/settings.xml
+pushd $(dirname "$0")/../../
+
+setup_environment_secrets
+create_settings_xml_file "settings.xml"
+
+mvn clean install deploy -B \
+  --settings ${MAVEN_SETTINGS_FILE} \
+  -DskipTests=true \
+  -DperformRelease=true \
+  -Dgpg.executable=gpg \
+  -Dgpg.passphrase=${GPG_PASSPHRASE} \
+  -Dgpg.homedir=${GPG_HOMEDIR}
+
+if [[ -n "${AUTORELEASE_PR}" ]]
+then
+  mvn nexus-staging:release -B \
+    -DperformRelease=true \
+    --settings=settings.xml
+fi
\ No newline at end of file
diff --git a/.kokoro/trampoline.sh b/.kokoro/trampoline.sh
new file mode 100644
index 000000000..9da0f8398
--- /dev/null
+++ b/.kokoro/trampoline.sh
@@ -0,0 +1,26 @@
+#!/bin/bash
+# Copyright 2018 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+set -eo pipefail
+# Always run the cleanup script, regardless of the success of bouncing into
+# the container.
+function cleanup() {
+    chmod +x ${KOKORO_GFILE_DIR}/trampoline_cleanup.sh
+    ${KOKORO_GFILE_DIR}/trampoline_cleanup.sh
+    echo "cleanup";
+}
+trap cleanup EXIT
+
+$(dirname $0)/populate-secrets.sh # Secret Manager secrets.
+python3 "${KOKORO_GFILE_DIR}/trampoline_v1.py"
diff --git a/.repo-metadata.json b/.repo-metadata.json
new file mode 100644
index 000000000..fa031dc3a
--- /dev/null
+++ b/.repo-metadata.json
@@ -0,0 +1,15 @@
+{
+  "name": "dialogflow-cx",
+  "name_pretty": "Dialogflow CX",
+  "product_documentation": "https://cloud.google.com/dialogflow/cx/docs",
+  "api_description": "provides a new way of designing agents, taking a state machine approach to agent design. This gives you clear and explicit control over a conversation, a better end-user experience, and a better development workflow.",
+  "client_documentation": "https://googleapis.dev/java/google-cloud-dialogflow-cx/latest/index.html",
+  "release_level": "beta",
+  "transport": "grpc",
+  "language": "java",
+  "repo": "googleapis/java-dialogflow-cx",
+  "repo_short": "java-dialogflow-cx",
+  "distribution_name": "com.google.cloud:google-cloud-dialogflow-cx",
+  "api_id": "dialogflow-cx.googleapis.com",
+  "requires_billing": true
+}
\ No newline at end of file
diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
new file mode 100644
index 000000000..6b2238bb7
--- /dev/null
+++ b/CODE_OF_CONDUCT.md
@@ -0,0 +1,93 @@
+# Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, gender identity and expression, level of
+experience, education, socio-economic status, nationality, personal appearance,
+race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+*   Using welcoming and inclusive language
+*   Being respectful of differing viewpoints and experiences
+*   Gracefully accepting constructive criticism
+*   Focusing on what is best for the community
+*   Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+*   The use of sexualized language or imagery and unwelcome sexual attention or
+    advances
+*   Trolling, insulting/derogatory comments, and personal or political attacks
+*   Public or private harassment
+*   Publishing others' private information, such as a physical or electronic
+    address, without explicit permission
+*   Other conduct which could reasonably be considered inappropriate in a
+    professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or reject
+comments, commits, code, wiki edits, issues, and other contributions that are
+not aligned to this Code of Conduct, or to ban temporarily or permanently any
+contributor for other behaviors that they deem inappropriate, threatening,
+offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+This Code of Conduct also applies outside the project spaces when the Project
+Steward has a reasonable belief that an individual's behavior may have a
+negative impact on the project or its community.
+
+## Conflict Resolution
+
+We do not believe that all conflict is bad; healthy debate and disagreement
+often yield positive results. However, it is never okay to be disrespectful or
+to engage in behavior that violates the project’s code of conduct.
+
+If you see someone violating the code of conduct, you are encouraged to address
+the behavior directly with those involved. Many issues can be resolved quickly
+and easily, and this gives people more control over the outcome of their
+dispute. If you are unable to resolve the matter for any reason, or if the
+behavior is threatening or harassing, report it. We are dedicated to providing
+an environment where participants feel welcome and safe.
+
+Reports should be directed to *[PROJECT STEWARD NAME(s) AND EMAIL(s)]*, the
+Project Steward(s) for *[PROJECT NAME]*. It is the Project Steward’s duty to
+receive and address reported violations of the code of conduct. They will then
+work with a committee consisting of representatives from the Open Source
+Programs Office and the Google Open Source Strategy team. If for any reason you
+are uncomfortable reaching out the Project Steward, please email
+opensource@google.com.
+
+We will investigate every complaint, but you may not receive a direct response.
+We will use our discretion in determining when and how to follow up on reported
+incidents, which may range from not taking action to permanent expulsion from
+the project and project-sponsored spaces. We will notify the accused of the
+report and provide them an opportunity to discuss it before any action is taken.
+The identity of the reporter will be omitted from the details of the report
+supplied to the accused. In potentially harmful situations, such as ongoing
+harassment or threats to anyone's safety, we may take action without notice.
+
+## Attribution
+
+This Code of Conduct is adapted from the Contributor Covenant, version 1.4,
+available at
+https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
\ No newline at end of file
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 000000000..f2dbdee06
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,139 @@
+# How to Contribute
+
+We'd love to accept your patches and contributions to this project. There are
+just a few small guidelines you need to follow.
+
+## Contributor License Agreement
+
+Contributions to this project must be accompanied by a Contributor License
+Agreement. You (or your employer) retain the copyright to your contribution;
+this simply gives us permission to use and redistribute your contributions as
+part of the project. Head over to <https://cla.developers.google.com/> to see
+your current agreements on file or to sign a new one.
+
+You generally only need to submit a CLA once, so if you've already submitted one
+(even if it was for a different project), you probably don't need to do it
+again.
+
+## Code reviews
+
+All submissions, including submissions by project members, require review. We
+use GitHub pull requests for this purpose. Consult
+[GitHub Help](https://help.github.com/articles/about-pull-requests/) for more
+information on using pull requests.
+
+## Community Guidelines
+
+This project follows
+[Google's Open Source Community Guidelines](https://opensource.google.com/conduct/).
+
+## Building the project
+
+To build, package, and run all unit tests run the command
+
+```
+mvn clean verify
+```
+
+### Running Integration tests
+
+To include integration tests when building the project, you need access to
+a GCP Project with a valid service account. 
+
+For instructions on how to generate a service account and corresponding
+credentials JSON see: [Creating a Service Account][1].
+
+Then run the following to build, package, run all unit tests and run all
+integration tests.
+
+```bash
+export GOOGLE_APPLICATION_CREDENTIALS=/path/to/service/account.json
+mvn -Penable-integration-tests clean verify
+```
+
+## Code Samples
+
+Code Samples must be bundled in separate Maven modules, and guarded by a
+Maven profile with the name `enable-samples`.
+
+The samples must be separate from the primary project for a few reasons:
+1. Primary projects have a minimum Java version of Java 7 whereas samples have
+   a minimum Java version of Java 8. Due to this we need the ability to
+   selectively exclude samples from a build run.
+2. Many code samples depend on external GCP services and need
+   credentials to access the service.
+3. Code samples are not released as Maven artifacts and must be excluded from 
+   release builds.
+   
+### Building
+
+```bash
+mvn -Penable-samples clean verify
+```
+
+Some samples require access to GCP services and require a service account:
+
+```bash
+export GOOGLE_APPLICATION_CREDENTIALS=/path/to/service/account.json
+mvn -Penable-samples clean verify
+```
+
+### Profile Config
+
+1. To add samples in a profile to your Maven project, add the following to your
+`pom.xml`
+
+    ```xml
+    <project>
+      [...]
+      <profiles>
+        <profile>
+          <id>enable-samples</id>
+          <modules>
+            <module>sample</module>
+          </modules>
+        </profile>
+      </profiles>
+      [...]
+    </project>
+    ```
+
+2. [Activate](#profile-activation) the profile.
+3. Define your samples in a normal Maven project in the `samples/` directory.
+
+### Code Formatting
+
+Code in this repo is formatted with
+[google-java-format](https://github.com/google/google-java-format).
+To run formatting on your project, you can run:
+```
+mvn com.coveo:fmt-maven-plugin:format
+```
+
+### Profile Activation
+
+To include code samples when building and testing the project, enable the 
+`enable-samples` Maven profile.
+
+#### Command line
+
+To activate the Maven profile on the command line add `-Penable-samples` to your
+Maven command.
+
+#### Maven `settings.xml`
+
+To activate the Maven profile in your `~/.m2/settings.xml` add an entry of
+`enable-samples` following the instructions in [Active Profiles][2].
+
+This method has the benefit of applying to all projects you build (and is
+respected by IntelliJ IDEA) and is recommended if you are going to be
+contributing samples to several projects.
+
+#### IntelliJ IDEA
+
+To activate the Maven Profile inside IntelliJ IDEA, follow the instructions in
+[Activate Maven profiles][3] to activate `enable-samples`.
+
+[1]: https://cloud.google.com/docs/authentication/getting-started#creating_a_service_account
+[2]: https://maven.apache.org/settings.html#Active_Profiles
+[3]: https://www.jetbrains.com/help/idea/work-with-maven-profiles.html#activate_maven_profiles
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 000000000..d64569567
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
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+   5. Submission of Contributions. Unless You explicitly state otherwise,
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+      whether in tort (including negligence), contract, or otherwise,
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+
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+
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+   you may not use this file except in compliance with the License.
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+
+   Unless required by applicable law or agreed to in writing, software
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diff --git a/README.md b/README.md
new file mode 100644
index 000000000..006e25900
--- /dev/null
+++ b/README.md
@@ -0,0 +1,143 @@
+# Google Dialogflow CX Client for Java
+
+Java idiomatic client for [Dialogflow CX][product-docs].
+
+[![Maven][maven-version-image]][maven-version-link]
+![Stability][stability-image]
+
+- [Product Documentation][product-docs]
+- [Client Library Documentation][javadocs]
+
+> Note: This client is a work-in-progress, and may occasionally
+> make backwards-incompatible changes.
+
+## Quickstart
+
+
+If you are using Maven, add this to your pom.xml file:
+
+```xml
+<dependency>
+  <groupId>com.google.cloud</groupId>
+  <artifactId>google-cloud-dialogflow-cx</artifactId>
+  <version>0.0.0</version>
+</dependency>
+```
+
+[//]: # ({x-version-update-start:google-cloud-dialogflow-cx:released})
+
+If you are using Gradle, add this to your dependencies
+```Groovy
+compile 'com.google.cloud:google-cloud-dialogflow-cx:0.0.0'
+```
+If you are using SBT, add this to your dependencies
+```Scala
+libraryDependencies += "com.google.cloud" % "google-cloud-dialogflow-cx" % "0.0.0"
+```
+[//]: # ({x-version-update-end})
+
+## Authentication
+
+See the [Authentication][authentication] section in the base directory's README.
+
+## Getting Started
+
+### Prerequisites
+
+You will need a [Google Cloud Platform Console][developer-console] project with the Dialogflow CX [API enabled][enable-api].
+You will need to [enable billing][enable-billing] to use Google Dialogflow CX.
+[Follow these instructions][create-project] to get your project set up. You will also need to set up the local development environment by
+[installing the Google Cloud SDK][cloud-sdk] and running the following commands in command line:
+`gcloud auth login` and `gcloud config set project [YOUR PROJECT ID]`.
+
+### Installation and setup
+
+You'll need to obtain the `google-cloud-dialogflow-cx` library.  See the [Quickstart](#quickstart) section
+to add `google-cloud-dialogflow-cx` as a dependency in your code.
+
+## About Dialogflow CX
+
+
+[Dialogflow CX][product-docs] provides a new way of designing agents, taking a state machine approach to agent design. This gives you clear and explicit control over a conversation, a better end-user experience, and a better development workflow.
+
+See the [Dialogflow CX client library docs][javadocs] to learn how to
+use this Dialogflow CX Client Library.
+
+
+
+
+
+
+## Troubleshooting
+
+To get help, follow the instructions in the [shared Troubleshooting document][troubleshooting].
+
+## Transport
+
+Dialogflow CX uses gRPC for the transport layer.
+
+## Java Versions
+
+Java 7 or above is required for using this client.
+
+## Versioning
+
+
+This library follows [Semantic Versioning](http://semver.org/).
+
+
+It is currently in major version zero (``0.y.z``), which means that anything may change at any time
+and the public API should not be considered stable.
+
+## Contributing
+
+
+Contributions to this library are always welcome and highly encouraged.
+
+See [CONTRIBUTING][contributing] for more information how to get started.
+
+Please note that this project is released with a Contributor Code of Conduct. By participating in
+this project you agree to abide by its terms. See [Code of Conduct][code-of-conduct] for more
+information.
+
+## License
+
+Apache 2.0 - See [LICENSE][license] for more information.
+
+## CI Status
+
+Java Version | Status
+------------ | ------
+Java 7 | [![Kokoro CI][kokoro-badge-image-1]][kokoro-badge-link-1]
+Java 8 | [![Kokoro CI][kokoro-badge-image-2]][kokoro-badge-link-2]
+Java 8 OSX | [![Kokoro CI][kokoro-badge-image-3]][kokoro-badge-link-3]
+Java 8 Windows | [![Kokoro CI][kokoro-badge-image-4]][kokoro-badge-link-4]
+Java 11 | [![Kokoro CI][kokoro-badge-image-5]][kokoro-badge-link-5]
+
+[product-docs]: https://cloud.google.com/dialogflow/cx/docs
+[javadocs]: https://googleapis.dev/java/google-cloud-dialogflow-cx/latest/index.html
+[kokoro-badge-image-1]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-dialogflow-cx/java7.svg
+[kokoro-badge-link-1]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-dialogflow-cx/java7.html
+[kokoro-badge-image-2]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-dialogflow-cx/java8.svg
+[kokoro-badge-link-2]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-dialogflow-cx/java8.html
+[kokoro-badge-image-3]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-dialogflow-cx/java8-osx.svg
+[kokoro-badge-link-3]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-dialogflow-cx/java8-osx.html
+[kokoro-badge-image-4]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-dialogflow-cx/java8-win.svg
+[kokoro-badge-link-4]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-dialogflow-cx/java8-win.html
+[kokoro-badge-image-5]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-dialogflow-cx/java11.svg
+[kokoro-badge-link-5]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-dialogflow-cx/java11.html
+[stability-image]: https://img.shields.io/badge/stability-beta-yellow
+[maven-version-image]: https://img.shields.io/maven-central/v/com.google.cloud/google-cloud-dialogflow-cx.svg
+[maven-version-link]: https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-dialogflow-cx&core=gav
+[authentication]: https://github.com/googleapis/google-cloud-java#authentication
+[developer-console]: https://console.developers.google.com/
+[create-project]: https://cloud.google.com/resource-manager/docs/creating-managing-projects
+[cloud-sdk]: https://cloud.google.com/sdk/
+[troubleshooting]: https://github.com/googleapis/google-cloud-common/blob/master/troubleshooting/readme.md#troubleshooting
+[contributing]: https://github.com/googleapis/java-dialogflow-cx/blob/master/CONTRIBUTING.md
+[code-of-conduct]: https://github.com/googleapis/java-dialogflow-cx/blob/master/CODE_OF_CONDUCT.md#contributor-code-of-conduct
+[license]: https://github.com/googleapis/java-dialogflow-cx/blob/master/LICENSE
+[enable-billing]: https://cloud.google.com/apis/docs/getting-started#enabling_billing
+[enable-api]: https://console.cloud.google.com/flows/enableapi?apiid=dialogflow-cx.googleapis.com
+[libraries-bom]: https://github.com/GoogleCloudPlatform/cloud-opensource-java/wiki/The-Google-Cloud-Platform-Libraries-BOM
+[shell_img]: https://gstatic.com/cloudssh/images/open-btn.png
diff --git a/codecov.yaml b/codecov.yaml
new file mode 100644
index 000000000..5724ea947
--- /dev/null
+++ b/codecov.yaml
@@ -0,0 +1,4 @@
+---
+codecov:
+  ci:
+    - source.cloud.google.com
diff --git a/google-cloud-dialogflow-cx-bom/pom.xml b/google-cloud-dialogflow-cx-bom/pom.xml
new file mode 100644
index 000000000..7d83c889d
--- /dev/null
+++ b/google-cloud-dialogflow-cx-bom/pom.xml
@@ -0,0 +1,97 @@
+<?xml version="1.0"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.google.cloud</groupId>
+  <artifactId>google-cloud-dialogflow-cx-bom</artifactId>
+  <version>0.0.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow-cx:current} -->
+  <packaging>pom</packaging>
+  <parent>
+    <groupId>com.google.cloud</groupId>
+    <artifactId>google-cloud-shared-config</artifactId>
+    <version>0.9.2</version>
+  </parent>
+
+  <name>Google Dialogflow CX BOM</name>
+  <url>https://github.com/googleapis/java-dialogflow-cx</url>
+  <description>
+    BOM for Dialogflow CX
+  </description>
+
+  <organization>
+    <name>Google LLC</name>
+  </organization>
+
+  <developers>
+    <developer>
+      <id>chingor13</id>
+      <name>Jeff Ching</name>
+      <email>chingor@google.com</email>
+      <organization>Google LLC</organization>
+      <roles>
+        <role>Developer</role>
+      </roles>
+    </developer>
+  </developers>
+
+  <scm>
+    <connection>scm:git:https://github.com/googleapis/java-dialogflow-cx.git</connection>
+    <developerConnection>scm:git:git@github.com:googleapis/java-dialogflow-cx.git</developerConnection>
+    <url>https://github.com/googleapis/java-dialogflow-cx</url>
+  </scm>
+
+  <properties>
+    <maven.antrun.skip>true</maven.antrun.skip>
+  </properties>
+
+  <distributionManagement>
+    <snapshotRepository>
+      <id>sonatype-nexus-snapshots</id>
+      <url>https://oss.sonatype.org/content/repositories/snapshots</url>
+    </snapshotRepository>
+    <repository>
+      <id>sonatype-nexus-staging</id>
+      <url>https://oss.sonatype.org/service/local/staging/deploy/maven2/</url>
+    </repository>
+  </distributionManagement>
+
+  <licenses>
+    <license>
+      <name>The Apache Software License, Version 2.0</name>
+      <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
+      <distribution>repo</distribution>
+    </license>
+  </licenses>
+
+  <dependencyManagement>
+    <dependencies>
+
+      <dependency>
+        <groupId>com.google.cloud</groupId>
+        <artifactId>google-cloud-dialogflow-cx</artifactId>
+        <version>0.0.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow-cx:current} -->
+      </dependency>
+      <dependency>
+        <groupId>com.google.api.grpc</groupId>
+        <artifactId>proto-google-cloud-dialogflow-cx-v3beta1</artifactId>
+        <version>0.0.1-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-dialogflow-cx-v3beta1:current} -->
+      </dependency>
+      <dependency>
+        <groupId>com.google.api.grpc</groupId>
+        <artifactId>grpc-google-cloud-dialogflow-cx-v3beta1</artifactId>
+        <version>0.0.1-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-dialogflow-cx-v3beta1:current} -->
+      </dependency>
+    </dependencies>
+  </dependencyManagement>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-checkstyle-plugin</artifactId>
+        <configuration>
+          <skip>true</skip>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+</project>
\ No newline at end of file
diff --git a/google-cloud-dialogflow-cx/pom.xml b/google-cloud-dialogflow-cx/pom.xml
new file mode 100644
index 000000000..b51202e9c
--- /dev/null
+++ b/google-cloud-dialogflow-cx/pom.xml
@@ -0,0 +1,111 @@
+<?xml version="1.0"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.google.cloud</groupId>
+  <artifactId>google-cloud-dialogflow-cx</artifactId>
+  <version>0.0.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow-cx:current} -->
+  <packaging>jar</packaging>
+  <name>Google Dialogflow CX</name>
+  <url>https://github.com/googleapis/java-dialogflow-cx</url>
+  <description>provides a new way of designing agents, taking a state machine approach to agent design. This gives you clear and explicit control over a conversation, a better end-user experience, and a better development workflow.</description>
+  <parent>
+    <groupId>com.google.cloud</groupId>
+    <artifactId>google-cloud-dialogflow-cx-parent</artifactId>
+    <version>0.0.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow-cx:current} -->
+  </parent>
+  <properties>
+    <site.installationModule>google-cloud-dialogflow-cx</site.installationModule>
+  </properties>
+  <dependencies>
+    <dependency>
+      <groupId>io.grpc</groupId>
+      <artifactId>grpc-api</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>io.grpc</groupId>
+      <artifactId>grpc-stub</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>io.grpc</groupId>
+      <artifactId>grpc-protobuf</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.google.api</groupId>
+      <artifactId>api-common</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.google.protobuf</groupId>
+      <artifactId>protobuf-java</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.google.api.grpc</groupId>
+      <artifactId>proto-google-common-protos</artifactId>
+    </dependency>
+
+    <dependency>
+      <groupId>com.google.api.grpc</groupId>
+      <artifactId>proto-google-cloud-dialogflow-cx-v3beta1</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.google.guava</groupId>
+      <artifactId>guava</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.google.api</groupId>
+      <artifactId>gax</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.google.api</groupId>
+      <artifactId>gax-grpc</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.threeten</groupId>
+      <artifactId>threetenbp</artifactId>
+    </dependency>
+
+    <!-- Test dependencies -->
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <scope>test</scope>
+      <version>4.13</version>
+    </dependency>
+
+    <dependency>
+      <groupId>com.google.api.grpc</groupId>
+      <artifactId>grpc-google-cloud-dialogflow-cx-v3beta1</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <!-- Need testing utility classes for generated gRPC clients tests -->
+    <dependency>
+      <groupId>com.google.api</groupId>
+      <artifactId>gax-grpc</artifactId>
+      <classifier>testlib</classifier>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <profiles>
+    <profile>
+      <id>java9</id>
+      <activation>
+        <jdk>[9,)</jdk>
+      </activation>
+      <dependencies>
+        <dependency>
+          <groupId>javax.annotation</groupId>
+          <artifactId>javax.annotation-api</artifactId>
+        </dependency>
+      </dependencies>
+    </profile>
+  </profiles>
+
+  <build>
+    <plugins>
+      <plugin>
+          <groupId>org.codehaus.mojo</groupId>
+          <artifactId>flatten-maven-plugin</artifactId>
+        </plugin>
+    </plugins>
+  </build>
+</project>
\ No newline at end of file
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentsClient.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentsClient.java
new file mode 100644
index 000000000..169f393a7
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentsClient.java
@@ -0,0 +1,916 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.ApiFutures;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.longrunning.OperationFuture;
+import com.google.api.gax.paging.AbstractFixedSizeCollection;
+import com.google.api.gax.paging.AbstractPage;
+import com.google.api.gax.paging.AbstractPagedListResponse;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.AgentsStub;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.AgentsStubSettings;
+import com.google.common.util.concurrent.MoreExecutors;
+import com.google.longrunning.Operation;
+import com.google.longrunning.OperationsClient;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import com.google.protobuf.Struct;
+import java.io.IOException;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND SERVICE
+/**
+ * Service Description: Service for managing [Agents][google.cloud.dialogflow.cx.v3beta1.Agent].
+ *
+ * <p>This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * <pre>
+ * <code>
+ * try (AgentsClient agentsClient = AgentsClient.create()) {
+ *   AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+ *   Agent response = agentsClient.getAgent(name);
+ * }
+ * </code>
+ * </pre>
+ *
+ * <p>Note: close() needs to be called on the agentsClient object to clean up resources such as
+ * threads. In the example above, try-with-resources is used, which automatically calls close().
+ *
+ * <p>The surface of this class includes several types of Java methods for each of the API's
+ * methods:
+ *
+ * <ol>
+ *   <li>A "flattened" method. With this type of method, the fields of the request type have been
+ *       converted into function parameters. It may be the case that not all fields are available as
+ *       parameters, and not every API method will have a flattened method entry point.
+ *   <li>A "request object" method. This type of method only takes one parameter, a request object,
+ *       which must be constructed before the call. Not every API method will have a request object
+ *       method.
+ *   <li>A "callable" method. This type of method takes no parameters and returns an immutable API
+ *       callable object, which can be used to initiate calls to the service.
+ * </ol>
+ *
+ * <p>See the individual methods for example code.
+ *
+ * <p>Many parameters require resource names to be formatted in a particular way. To assist with
+ * these names, this class includes a format method for each type of name, and additionally a parse
+ * method to extract the individual identifiers contained within names that are returned.
+ *
+ * <p>This class can be customized by passing in a custom instance of AgentsSettings to create().
+ * For example:
+ *
+ * <p>To customize credentials:
+ *
+ * <pre>
+ * <code>
+ * AgentsSettings agentsSettings =
+ *     AgentsSettings.newBuilder()
+ *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
+ *         .build();
+ * AgentsClient agentsClient =
+ *     AgentsClient.create(agentsSettings);
+ * </code>
+ * </pre>
+ *
+ * To customize the endpoint:
+ *
+ * <pre>
+ * <code>
+ * AgentsSettings agentsSettings =
+ *     AgentsSettings.newBuilder().setEndpoint(myEndpoint).build();
+ * AgentsClient agentsClient =
+ *     AgentsClient.create(agentsSettings);
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class AgentsClient implements BackgroundResource {
+  private final AgentsSettings settings;
+  private final AgentsStub stub;
+  private final OperationsClient operationsClient;
+
+  /** Constructs an instance of AgentsClient with default settings. */
+  public static final AgentsClient create() throws IOException {
+    return create(AgentsSettings.newBuilder().build());
+  }
+
+  /**
+   * Constructs an instance of AgentsClient, using the given settings. The channels are created
+   * based on the settings passed in, or defaults for any settings that are not set.
+   */
+  public static final AgentsClient create(AgentsSettings settings) throws IOException {
+    return new AgentsClient(settings);
+  }
+
+  /**
+   * Constructs an instance of AgentsClient, using the given stub for making calls. This is for
+   * advanced usage - prefer to use AgentsSettings}.
+   */
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public static final AgentsClient create(AgentsStub stub) {
+    return new AgentsClient(stub);
+  }
+
+  /**
+   * Constructs an instance of AgentsClient, using the given settings. This is protected so that it
+   * is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected AgentsClient(AgentsSettings settings) throws IOException {
+    this.settings = settings;
+    this.stub = ((AgentsStubSettings) settings.getStubSettings()).createStub();
+    this.operationsClient = OperationsClient.create(this.stub.getOperationsStub());
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  protected AgentsClient(AgentsStub stub) {
+    this.settings = null;
+    this.stub = stub;
+    this.operationsClient = OperationsClient.create(this.stub.getOperationsStub());
+  }
+
+  public final AgentsSettings getSettings() {
+    return settings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public AgentsStub getStub() {
+    return stub;
+  }
+
+  /**
+   * Returns the OperationsClient that can be used to query the status of a long-running operation
+   * returned by another API method call.
+   */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public final OperationsClient getOperationsClient() {
+    return operationsClient;
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all agents in the specified location.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+   *   for (Agent element : agentsClient.listAgents(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The location to list all agents for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListAgentsPagedResponse listAgents(LocationName parent) {
+    ListAgentsRequest request =
+        ListAgentsRequest.newBuilder().setParent(parent == null ? null : parent.toString()).build();
+    return listAgents(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all agents in the specified location.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+   *   for (Agent element : agentsClient.listAgents(parent.toString()).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The location to list all agents for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListAgentsPagedResponse listAgents(String parent) {
+    ListAgentsRequest request = ListAgentsRequest.newBuilder().setParent(parent).build();
+    return listAgents(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all agents in the specified location.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+   *   ListAgentsRequest request = ListAgentsRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   for (Agent element : agentsClient.listAgents(request).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListAgentsPagedResponse listAgents(ListAgentsRequest request) {
+    return listAgentsPagedCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all agents in the specified location.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+   *   ListAgentsRequest request = ListAgentsRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   ApiFuture&lt;ListAgentsPagedResponse&gt; future = agentsClient.listAgentsPagedCallable().futureCall(request);
+   *   // Do something
+   *   for (Agent element : future.get().iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<ListAgentsRequest, ListAgentsPagedResponse> listAgentsPagedCallable() {
+    return stub.listAgentsPagedCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all agents in the specified location.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+   *   ListAgentsRequest request = ListAgentsRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   while (true) {
+   *     ListAgentsResponse response = agentsClient.listAgentsCallable().call(request);
+   *     for (Agent element : response.getAgentsList()) {
+   *       // doThingsWith(element);
+   *     }
+   *     String nextPageToken = response.getNextPageToken();
+   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
+   *       request = request.toBuilder().setPageToken(nextPageToken).build();
+   *     } else {
+   *       break;
+   *     }
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<ListAgentsRequest, ListAgentsResponse> listAgentsCallable() {
+    return stub.listAgentsCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   Agent response = agentsClient.getAgent(name);
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the agent. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Agent getAgent(AgentName name) {
+    GetAgentRequest request =
+        GetAgentRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    return getAgent(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   Agent response = agentsClient.getAgent(name.toString());
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the agent. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Agent getAgent(String name) {
+    GetAgentRequest request = GetAgentRequest.newBuilder().setName(name).build();
+    return getAgent(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   GetAgentRequest request = GetAgentRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   Agent response = agentsClient.getAgent(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Agent getAgent(GetAgentRequest request) {
+    return getAgentCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   GetAgentRequest request = GetAgentRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;Agent&gt; future = agentsClient.getAgentCallable().futureCall(request);
+   *   // Do something
+   *   Agent response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<GetAgentRequest, Agent> getAgentCallable() {
+    return stub.getAgentCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates an agent in the specified location.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+   *   Agent agent = Agent.newBuilder().build();
+   *   Agent response = agentsClient.createAgent(parent, agent);
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The location to create a agent for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;`.
+   * @param agent Required. The agent to create.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Agent createAgent(LocationName parent, Agent agent) {
+    CreateAgentRequest request =
+        CreateAgentRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .setAgent(agent)
+            .build();
+    return createAgent(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates an agent in the specified location.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+   *   Agent agent = Agent.newBuilder().build();
+   *   Agent response = agentsClient.createAgent(parent.toString(), agent);
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The location to create a agent for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;`.
+   * @param agent Required. The agent to create.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Agent createAgent(String parent, Agent agent) {
+    CreateAgentRequest request =
+        CreateAgentRequest.newBuilder().setParent(parent).setAgent(agent).build();
+    return createAgent(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates an agent in the specified location.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+   *   Agent agent = Agent.newBuilder().build();
+   *   CreateAgentRequest request = CreateAgentRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .setAgent(agent)
+   *     .build();
+   *   Agent response = agentsClient.createAgent(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Agent createAgent(CreateAgentRequest request) {
+    return createAgentCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates an agent in the specified location.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+   *   Agent agent = Agent.newBuilder().build();
+   *   CreateAgentRequest request = CreateAgentRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .setAgent(agent)
+   *     .build();
+   *   ApiFuture&lt;Agent&gt; future = agentsClient.createAgentCallable().futureCall(request);
+   *   // Do something
+   *   Agent response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<CreateAgentRequest, Agent> createAgentCallable() {
+    return stub.createAgentCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   Agent agent = Agent.newBuilder().build();
+   *   FieldMask updateMask = FieldMask.newBuilder().build();
+   *   Agent response = agentsClient.updateAgent(agent, updateMask);
+   * }
+   * </code></pre>
+   *
+   * @param agent Required. The agent to update.
+   * @param updateMask The mask to control which fields get updated. If the mask is not present, all
+   *     fields will be updated.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Agent updateAgent(Agent agent, FieldMask updateMask) {
+    UpdateAgentRequest request =
+        UpdateAgentRequest.newBuilder().setAgent(agent).setUpdateMask(updateMask).build();
+    return updateAgent(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   Agent agent = Agent.newBuilder().build();
+   *   UpdateAgentRequest request = UpdateAgentRequest.newBuilder()
+   *     .setAgent(agent)
+   *     .build();
+   *   Agent response = agentsClient.updateAgent(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Agent updateAgent(UpdateAgentRequest request) {
+    return updateAgentCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   Agent agent = Agent.newBuilder().build();
+   *   UpdateAgentRequest request = UpdateAgentRequest.newBuilder()
+   *     .setAgent(agent)
+   *     .build();
+   *   ApiFuture&lt;Agent&gt; future = agentsClient.updateAgentCallable().futureCall(request);
+   *   // Do something
+   *   Agent response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<UpdateAgentRequest, Agent> updateAgentCallable() {
+    return stub.updateAgentCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   agentsClient.deleteAgent(name);
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the agent to delete. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteAgent(AgentName name) {
+    DeleteAgentRequest request =
+        DeleteAgentRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    deleteAgent(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   agentsClient.deleteAgent(name.toString());
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the agent to delete. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteAgent(String name) {
+    DeleteAgentRequest request = DeleteAgentRequest.newBuilder().setName(name).build();
+    deleteAgent(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   DeleteAgentRequest request = DeleteAgentRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   agentsClient.deleteAgent(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteAgent(DeleteAgentRequest request) {
+    deleteAgentCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   DeleteAgentRequest request = DeleteAgentRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;Void&gt; future = agentsClient.deleteAgentCallable().futureCall(request);
+   *   // Do something
+   *   future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<DeleteAgentRequest, Empty> deleteAgentCallable() {
+    return stub.deleteAgentCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Exports the specified agent to a ZIP file.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   ExportAgentRequest request = ExportAgentRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ExportAgentResponse response = agentsClient.exportAgentAsync(request).get();
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public final OperationFuture<ExportAgentResponse, Struct> exportAgentAsync(
+      ExportAgentRequest request) {
+    return exportAgentOperationCallable().futureCall(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Exports the specified agent to a ZIP file.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   ExportAgentRequest request = ExportAgentRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   OperationFuture&lt;ExportAgentResponse, Struct&gt; future = agentsClient.exportAgentOperationCallable().futureCall(request);
+   *   // Do something
+   *   ExportAgentResponse response = future.get();
+   * }
+   * </code></pre>
+   */
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public final OperationCallable<ExportAgentRequest, ExportAgentResponse, Struct>
+      exportAgentOperationCallable() {
+    return stub.exportAgentOperationCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Exports the specified agent to a ZIP file.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   ExportAgentRequest request = ExportAgentRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;Operation&gt; future = agentsClient.exportAgentCallable().futureCall(request);
+   *   // Do something
+   *   Operation response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<ExportAgentRequest, Operation> exportAgentCallable() {
+    return stub.exportAgentCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Restores the specified agent from a ZIP file.
+   *
+   * <p>Note that all existing intents, intent routes, entity types, pages and webhooks in the agent
+   * will be deleted.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   RestoreAgentRequest request = RestoreAgentRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   agentsClient.restoreAgentAsync(request).get();
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public final OperationFuture<Empty, Struct> restoreAgentAsync(RestoreAgentRequest request) {
+    return restoreAgentOperationCallable().futureCall(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Restores the specified agent from a ZIP file.
+   *
+   * <p>Note that all existing intents, intent routes, entity types, pages and webhooks in the agent
+   * will be deleted.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   RestoreAgentRequest request = RestoreAgentRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   OperationFuture&lt;Empty, Struct&gt; future = agentsClient.restoreAgentOperationCallable().futureCall(request);
+   *   // Do something
+   *   future.get();
+   * }
+   * </code></pre>
+   */
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public final OperationCallable<RestoreAgentRequest, Empty, Struct>
+      restoreAgentOperationCallable() {
+    return stub.restoreAgentOperationCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Restores the specified agent from a ZIP file.
+   *
+   * <p>Note that all existing intents, intent routes, entity types, pages and webhooks in the agent
+   * will be deleted.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (AgentsClient agentsClient = AgentsClient.create()) {
+   *   AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   RestoreAgentRequest request = RestoreAgentRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;Operation&gt; future = agentsClient.restoreAgentCallable().futureCall(request);
+   *   // Do something
+   *   future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<RestoreAgentRequest, Operation> restoreAgentCallable() {
+    return stub.restoreAgentCallable();
+  }
+
+  @Override
+  public final void close() {
+    stub.close();
+  }
+
+  @Override
+  public void shutdown() {
+    stub.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return stub.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return stub.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    stub.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return stub.awaitTermination(duration, unit);
+  }
+
+  public static class ListAgentsPagedResponse
+      extends AbstractPagedListResponse<
+          ListAgentsRequest,
+          ListAgentsResponse,
+          Agent,
+          ListAgentsPage,
+          ListAgentsFixedSizeCollection> {
+
+    public static ApiFuture<ListAgentsPagedResponse> createAsync(
+        PageContext<ListAgentsRequest, ListAgentsResponse, Agent> context,
+        ApiFuture<ListAgentsResponse> futureResponse) {
+      ApiFuture<ListAgentsPage> futurePage =
+          ListAgentsPage.createEmptyPage().createPageAsync(context, futureResponse);
+      return ApiFutures.transform(
+          futurePage,
+          new ApiFunction<ListAgentsPage, ListAgentsPagedResponse>() {
+            @Override
+            public ListAgentsPagedResponse apply(ListAgentsPage input) {
+              return new ListAgentsPagedResponse(input);
+            }
+          },
+          MoreExecutors.directExecutor());
+    }
+
+    private ListAgentsPagedResponse(ListAgentsPage page) {
+      super(page, ListAgentsFixedSizeCollection.createEmptyCollection());
+    }
+  }
+
+  public static class ListAgentsPage
+      extends AbstractPage<ListAgentsRequest, ListAgentsResponse, Agent, ListAgentsPage> {
+
+    private ListAgentsPage(
+        PageContext<ListAgentsRequest, ListAgentsResponse, Agent> context,
+        ListAgentsResponse response) {
+      super(context, response);
+    }
+
+    private static ListAgentsPage createEmptyPage() {
+      return new ListAgentsPage(null, null);
+    }
+
+    @Override
+    protected ListAgentsPage createPage(
+        PageContext<ListAgentsRequest, ListAgentsResponse, Agent> context,
+        ListAgentsResponse response) {
+      return new ListAgentsPage(context, response);
+    }
+
+    @Override
+    public ApiFuture<ListAgentsPage> createPageAsync(
+        PageContext<ListAgentsRequest, ListAgentsResponse, Agent> context,
+        ApiFuture<ListAgentsResponse> futureResponse) {
+      return super.createPageAsync(context, futureResponse);
+    }
+  }
+
+  public static class ListAgentsFixedSizeCollection
+      extends AbstractFixedSizeCollection<
+          ListAgentsRequest,
+          ListAgentsResponse,
+          Agent,
+          ListAgentsPage,
+          ListAgentsFixedSizeCollection> {
+
+    private ListAgentsFixedSizeCollection(List<ListAgentsPage> pages, int collectionSize) {
+      super(pages, collectionSize);
+    }
+
+    private static ListAgentsFixedSizeCollection createEmptyCollection() {
+      return new ListAgentsFixedSizeCollection(null, 0);
+    }
+
+    @Override
+    protected ListAgentsFixedSizeCollection createCollection(
+        List<ListAgentsPage> pages, int collectionSize) {
+      return new ListAgentsFixedSizeCollection(pages, collectionSize);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentsSettings.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentsSettings.java
new file mode 100644
index 000000000..5659d6fcf
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentsSettings.java
@@ -0,0 +1,278 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.AgentsClient.ListAgentsPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientSettings;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.AgentsStubSettings;
+import com.google.longrunning.Operation;
+import com.google.protobuf.Empty;
+import com.google.protobuf.Struct;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Settings class to configure an instance of {@link AgentsClient}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getAgent to 30 seconds:
+ *
+ * <pre>
+ * <code>
+ * AgentsSettings.Builder agentsSettingsBuilder =
+ *     AgentsSettings.newBuilder();
+ * agentsSettingsBuilder
+ *     .getAgentSettings()
+ *     .setRetrySettings(
+ *         agentsSettingsBuilder.getAgentSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * AgentsSettings agentsSettings = agentsSettingsBuilder.build();
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class AgentsSettings extends ClientSettings<AgentsSettings> {
+  /** Returns the object with the settings used for calls to listAgents. */
+  public PagedCallSettings<ListAgentsRequest, ListAgentsResponse, ListAgentsPagedResponse>
+      listAgentsSettings() {
+    return ((AgentsStubSettings) getStubSettings()).listAgentsSettings();
+  }
+
+  /** Returns the object with the settings used for calls to getAgent. */
+  public UnaryCallSettings<GetAgentRequest, Agent> getAgentSettings() {
+    return ((AgentsStubSettings) getStubSettings()).getAgentSettings();
+  }
+
+  /** Returns the object with the settings used for calls to createAgent. */
+  public UnaryCallSettings<CreateAgentRequest, Agent> createAgentSettings() {
+    return ((AgentsStubSettings) getStubSettings()).createAgentSettings();
+  }
+
+  /** Returns the object with the settings used for calls to updateAgent. */
+  public UnaryCallSettings<UpdateAgentRequest, Agent> updateAgentSettings() {
+    return ((AgentsStubSettings) getStubSettings()).updateAgentSettings();
+  }
+
+  /** Returns the object with the settings used for calls to deleteAgent. */
+  public UnaryCallSettings<DeleteAgentRequest, Empty> deleteAgentSettings() {
+    return ((AgentsStubSettings) getStubSettings()).deleteAgentSettings();
+  }
+
+  /** Returns the object with the settings used for calls to exportAgent. */
+  public UnaryCallSettings<ExportAgentRequest, Operation> exportAgentSettings() {
+    return ((AgentsStubSettings) getStubSettings()).exportAgentSettings();
+  }
+
+  /** Returns the object with the settings used for calls to exportAgent. */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public OperationCallSettings<ExportAgentRequest, ExportAgentResponse, Struct>
+      exportAgentOperationSettings() {
+    return ((AgentsStubSettings) getStubSettings()).exportAgentOperationSettings();
+  }
+
+  /** Returns the object with the settings used for calls to restoreAgent. */
+  public UnaryCallSettings<RestoreAgentRequest, Operation> restoreAgentSettings() {
+    return ((AgentsStubSettings) getStubSettings()).restoreAgentSettings();
+  }
+
+  /** Returns the object with the settings used for calls to restoreAgent. */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public OperationCallSettings<RestoreAgentRequest, Empty, Struct> restoreAgentOperationSettings() {
+    return ((AgentsStubSettings) getStubSettings()).restoreAgentOperationSettings();
+  }
+
+  public static final AgentsSettings create(AgentsStubSettings stub) throws IOException {
+    return new AgentsSettings.Builder(stub.toBuilder()).build();
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return AgentsStubSettings.defaultExecutorProviderBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return AgentsStubSettings.getDefaultEndpoint();
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return AgentsStubSettings.getDefaultServiceScopes();
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return AgentsStubSettings.defaultCredentialsProviderBuilder();
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return AgentsStubSettings.defaultGrpcTransportProviderBuilder();
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return AgentsStubSettings.defaultTransportChannelProvider();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return AgentsStubSettings.defaultApiClientHeaderProviderBuilder();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected AgentsSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+  }
+
+  /** Builder for AgentsSettings. */
+  public static class Builder extends ClientSettings.Builder<AgentsSettings, Builder> {
+    protected Builder() throws IOException {
+      this((ClientContext) null);
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(AgentsStubSettings.newBuilder(clientContext));
+    }
+
+    private static Builder createDefault() {
+      return new Builder(AgentsStubSettings.newBuilder());
+    }
+
+    protected Builder(AgentsSettings settings) {
+      super(settings.getStubSettings().toBuilder());
+    }
+
+    protected Builder(AgentsStubSettings.Builder stubSettings) {
+      super(stubSettings);
+    }
+
+    public AgentsStubSettings.Builder getStubSettingsBuilder() {
+      return ((AgentsStubSettings.Builder) getStubSettings());
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(
+          getStubSettingsBuilder().unaryMethodSettingsBuilders(), settingsUpdater);
+      return this;
+    }
+
+    /** Returns the builder for the settings used for calls to listAgents. */
+    public PagedCallSettings.Builder<ListAgentsRequest, ListAgentsResponse, ListAgentsPagedResponse>
+        listAgentsSettings() {
+      return getStubSettingsBuilder().listAgentsSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to getAgent. */
+    public UnaryCallSettings.Builder<GetAgentRequest, Agent> getAgentSettings() {
+      return getStubSettingsBuilder().getAgentSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to createAgent. */
+    public UnaryCallSettings.Builder<CreateAgentRequest, Agent> createAgentSettings() {
+      return getStubSettingsBuilder().createAgentSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to updateAgent. */
+    public UnaryCallSettings.Builder<UpdateAgentRequest, Agent> updateAgentSettings() {
+      return getStubSettingsBuilder().updateAgentSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to deleteAgent. */
+    public UnaryCallSettings.Builder<DeleteAgentRequest, Empty> deleteAgentSettings() {
+      return getStubSettingsBuilder().deleteAgentSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to exportAgent. */
+    public UnaryCallSettings.Builder<ExportAgentRequest, Operation> exportAgentSettings() {
+      return getStubSettingsBuilder().exportAgentSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to exportAgent. */
+    @BetaApi(
+        "The surface for long-running operations is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<ExportAgentRequest, ExportAgentResponse, Struct>
+        exportAgentOperationSettings() {
+      return getStubSettingsBuilder().exportAgentOperationSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to restoreAgent. */
+    public UnaryCallSettings.Builder<RestoreAgentRequest, Operation> restoreAgentSettings() {
+      return getStubSettingsBuilder().restoreAgentSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to restoreAgent. */
+    @BetaApi(
+        "The surface for long-running operations is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<RestoreAgentRequest, Empty, Struct>
+        restoreAgentOperationSettings() {
+      return getStubSettingsBuilder().restoreAgentOperationSettings();
+    }
+
+    @Override
+    public AgentsSettings build() throws IOException {
+      return new AgentsSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EntityTypesClient.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EntityTypesClient.java
new file mode 100644
index 000000000..b52e299fd
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EntityTypesClient.java
@@ -0,0 +1,760 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.ApiFutures;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.paging.AbstractFixedSizeCollection;
+import com.google.api.gax.paging.AbstractPage;
+import com.google.api.gax.paging.AbstractPagedListResponse;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.EntityTypesStub;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.EntityTypesStubSettings;
+import com.google.common.util.concurrent.MoreExecutors;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import java.io.IOException;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND SERVICE
+/**
+ * Service Description: Service for managing
+ * [EntityTypes][google.cloud.dialogflow.cx.v3beta1.EntityType].
+ *
+ * <p>This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * <pre>
+ * <code>
+ * try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
+ *   EntityTypeName name = EntityTypeName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENTITY_TYPE]");
+ *   EntityType response = entityTypesClient.getEntityType(name);
+ * }
+ * </code>
+ * </pre>
+ *
+ * <p>Note: close() needs to be called on the entityTypesClient object to clean up resources such as
+ * threads. In the example above, try-with-resources is used, which automatically calls close().
+ *
+ * <p>The surface of this class includes several types of Java methods for each of the API's
+ * methods:
+ *
+ * <ol>
+ *   <li>A "flattened" method. With this type of method, the fields of the request type have been
+ *       converted into function parameters. It may be the case that not all fields are available as
+ *       parameters, and not every API method will have a flattened method entry point.
+ *   <li>A "request object" method. This type of method only takes one parameter, a request object,
+ *       which must be constructed before the call. Not every API method will have a request object
+ *       method.
+ *   <li>A "callable" method. This type of method takes no parameters and returns an immutable API
+ *       callable object, which can be used to initiate calls to the service.
+ * </ol>
+ *
+ * <p>See the individual methods for example code.
+ *
+ * <p>Many parameters require resource names to be formatted in a particular way. To assist with
+ * these names, this class includes a format method for each type of name, and additionally a parse
+ * method to extract the individual identifiers contained within names that are returned.
+ *
+ * <p>This class can be customized by passing in a custom instance of EntityTypesSettings to
+ * create(). For example:
+ *
+ * <p>To customize credentials:
+ *
+ * <pre>
+ * <code>
+ * EntityTypesSettings entityTypesSettings =
+ *     EntityTypesSettings.newBuilder()
+ *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
+ *         .build();
+ * EntityTypesClient entityTypesClient =
+ *     EntityTypesClient.create(entityTypesSettings);
+ * </code>
+ * </pre>
+ *
+ * To customize the endpoint:
+ *
+ * <pre>
+ * <code>
+ * EntityTypesSettings entityTypesSettings =
+ *     EntityTypesSettings.newBuilder().setEndpoint(myEndpoint).build();
+ * EntityTypesClient entityTypesClient =
+ *     EntityTypesClient.create(entityTypesSettings);
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class EntityTypesClient implements BackgroundResource {
+  private final EntityTypesSettings settings;
+  private final EntityTypesStub stub;
+
+  /** Constructs an instance of EntityTypesClient with default settings. */
+  public static final EntityTypesClient create() throws IOException {
+    return create(EntityTypesSettings.newBuilder().build());
+  }
+
+  /**
+   * Constructs an instance of EntityTypesClient, using the given settings. The channels are created
+   * based on the settings passed in, or defaults for any settings that are not set.
+   */
+  public static final EntityTypesClient create(EntityTypesSettings settings) throws IOException {
+    return new EntityTypesClient(settings);
+  }
+
+  /**
+   * Constructs an instance of EntityTypesClient, using the given stub for making calls. This is for
+   * advanced usage - prefer to use EntityTypesSettings}.
+   */
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public static final EntityTypesClient create(EntityTypesStub stub) {
+    return new EntityTypesClient(stub);
+  }
+
+  /**
+   * Constructs an instance of EntityTypesClient, using the given settings. This is protected so
+   * that it is easy to make a subclass, but otherwise, the static factory methods should be
+   * preferred.
+   */
+  protected EntityTypesClient(EntityTypesSettings settings) throws IOException {
+    this.settings = settings;
+    this.stub = ((EntityTypesStubSettings) settings.getStubSettings()).createStub();
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  protected EntityTypesClient(EntityTypesStub stub) {
+    this.settings = null;
+    this.stub = stub;
+  }
+
+  public final EntityTypesSettings getSettings() {
+    return settings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public EntityTypesStub getStub() {
+    return stub;
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all entity types in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   for (EntityType element : entityTypesClient.listEntityTypes(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The agent to list all entity types for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListEntityTypesPagedResponse listEntityTypes(AgentName parent) {
+    ListEntityTypesRequest request =
+        ListEntityTypesRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .build();
+    return listEntityTypes(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all entity types in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   for (EntityType element : entityTypesClient.listEntityTypes(parent.toString()).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The agent to list all entity types for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListEntityTypesPagedResponse listEntityTypes(String parent) {
+    ListEntityTypesRequest request = ListEntityTypesRequest.newBuilder().setParent(parent).build();
+    return listEntityTypes(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all entity types in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   ListEntityTypesRequest request = ListEntityTypesRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   for (EntityType element : entityTypesClient.listEntityTypes(request).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListEntityTypesPagedResponse listEntityTypes(ListEntityTypesRequest request) {
+    return listEntityTypesPagedCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all entity types in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   ListEntityTypesRequest request = ListEntityTypesRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   ApiFuture&lt;ListEntityTypesPagedResponse&gt; future = entityTypesClient.listEntityTypesPagedCallable().futureCall(request);
+   *   // Do something
+   *   for (EntityType element : future.get().iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<ListEntityTypesRequest, ListEntityTypesPagedResponse>
+      listEntityTypesPagedCallable() {
+    return stub.listEntityTypesPagedCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all entity types in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   ListEntityTypesRequest request = ListEntityTypesRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   while (true) {
+   *     ListEntityTypesResponse response = entityTypesClient.listEntityTypesCallable().call(request);
+   *     for (EntityType element : response.getEntityTypesList()) {
+   *       // doThingsWith(element);
+   *     }
+   *     String nextPageToken = response.getNextPageToken();
+   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
+   *       request = request.toBuilder().setPageToken(nextPageToken).build();
+   *     } else {
+   *       break;
+   *     }
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<ListEntityTypesRequest, ListEntityTypesResponse>
+      listEntityTypesCallable() {
+    return stub.listEntityTypesCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
+   *   EntityTypeName name = EntityTypeName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENTITY_TYPE]");
+   *   EntityType response = entityTypesClient.getEntityType(name);
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the entity type. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/entityTypes/&lt;Entity Type
+   *     ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final EntityType getEntityType(EntityTypeName name) {
+    GetEntityTypeRequest request =
+        GetEntityTypeRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    return getEntityType(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
+   *   EntityTypeName name = EntityTypeName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENTITY_TYPE]");
+   *   EntityType response = entityTypesClient.getEntityType(name.toString());
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the entity type. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/entityTypes/&lt;Entity Type
+   *     ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final EntityType getEntityType(String name) {
+    GetEntityTypeRequest request = GetEntityTypeRequest.newBuilder().setName(name).build();
+    return getEntityType(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
+   *   EntityTypeName name = EntityTypeName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENTITY_TYPE]");
+   *   GetEntityTypeRequest request = GetEntityTypeRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   EntityType response = entityTypesClient.getEntityType(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final EntityType getEntityType(GetEntityTypeRequest request) {
+    return getEntityTypeCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
+   *   EntityTypeName name = EntityTypeName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENTITY_TYPE]");
+   *   GetEntityTypeRequest request = GetEntityTypeRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;EntityType&gt; future = entityTypesClient.getEntityTypeCallable().futureCall(request);
+   *   // Do something
+   *   EntityType response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<GetEntityTypeRequest, EntityType> getEntityTypeCallable() {
+    return stub.getEntityTypeCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates an entity type in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   EntityType entityType = EntityType.newBuilder().build();
+   *   EntityType response = entityTypesClient.createEntityType(parent, entityType);
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The agent to create a entity type for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @param entityType Required. The entity type to create.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final EntityType createEntityType(AgentName parent, EntityType entityType) {
+    CreateEntityTypeRequest request =
+        CreateEntityTypeRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .setEntityType(entityType)
+            .build();
+    return createEntityType(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates an entity type in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   EntityType entityType = EntityType.newBuilder().build();
+   *   EntityType response = entityTypesClient.createEntityType(parent.toString(), entityType);
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The agent to create a entity type for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @param entityType Required. The entity type to create.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final EntityType createEntityType(String parent, EntityType entityType) {
+    CreateEntityTypeRequest request =
+        CreateEntityTypeRequest.newBuilder().setParent(parent).setEntityType(entityType).build();
+    return createEntityType(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates an entity type in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   EntityType entityType = EntityType.newBuilder().build();
+   *   CreateEntityTypeRequest request = CreateEntityTypeRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .setEntityType(entityType)
+   *     .build();
+   *   EntityType response = entityTypesClient.createEntityType(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final EntityType createEntityType(CreateEntityTypeRequest request) {
+    return createEntityTypeCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates an entity type in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   EntityType entityType = EntityType.newBuilder().build();
+   *   CreateEntityTypeRequest request = CreateEntityTypeRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .setEntityType(entityType)
+   *     .build();
+   *   ApiFuture&lt;EntityType&gt; future = entityTypesClient.createEntityTypeCallable().futureCall(request);
+   *   // Do something
+   *   EntityType response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<CreateEntityTypeRequest, EntityType> createEntityTypeCallable() {
+    return stub.createEntityTypeCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
+   *   EntityType entityType = EntityType.newBuilder().build();
+   *   FieldMask updateMask = FieldMask.newBuilder().build();
+   *   EntityType response = entityTypesClient.updateEntityType(entityType, updateMask);
+   * }
+   * </code></pre>
+   *
+   * @param entityType Required. The entity type to update.
+   * @param updateMask The mask to control which fields get updated.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final EntityType updateEntityType(EntityType entityType, FieldMask updateMask) {
+    UpdateEntityTypeRequest request =
+        UpdateEntityTypeRequest.newBuilder()
+            .setEntityType(entityType)
+            .setUpdateMask(updateMask)
+            .build();
+    return updateEntityType(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
+   *   EntityType entityType = EntityType.newBuilder().build();
+   *   UpdateEntityTypeRequest request = UpdateEntityTypeRequest.newBuilder()
+   *     .setEntityType(entityType)
+   *     .build();
+   *   EntityType response = entityTypesClient.updateEntityType(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final EntityType updateEntityType(UpdateEntityTypeRequest request) {
+    return updateEntityTypeCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
+   *   EntityType entityType = EntityType.newBuilder().build();
+   *   UpdateEntityTypeRequest request = UpdateEntityTypeRequest.newBuilder()
+   *     .setEntityType(entityType)
+   *     .build();
+   *   ApiFuture&lt;EntityType&gt; future = entityTypesClient.updateEntityTypeCallable().futureCall(request);
+   *   // Do something
+   *   EntityType response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<UpdateEntityTypeRequest, EntityType> updateEntityTypeCallable() {
+    return stub.updateEntityTypeCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
+   *   EntityTypeName name = EntityTypeName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENTITY_TYPE]");
+   *   entityTypesClient.deleteEntityType(name);
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the entity type to delete. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/entityTypes/&lt;Entity Type
+   *     ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteEntityType(EntityTypeName name) {
+    DeleteEntityTypeRequest request =
+        DeleteEntityTypeRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    deleteEntityType(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
+   *   EntityTypeName name = EntityTypeName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENTITY_TYPE]");
+   *   entityTypesClient.deleteEntityType(name.toString());
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the entity type to delete. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/entityTypes/&lt;Entity Type
+   *     ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteEntityType(String name) {
+    DeleteEntityTypeRequest request = DeleteEntityTypeRequest.newBuilder().setName(name).build();
+    deleteEntityType(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
+   *   EntityTypeName name = EntityTypeName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENTITY_TYPE]");
+   *   DeleteEntityTypeRequest request = DeleteEntityTypeRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   entityTypesClient.deleteEntityType(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteEntityType(DeleteEntityTypeRequest request) {
+    deleteEntityTypeCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
+   *   EntityTypeName name = EntityTypeName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENTITY_TYPE]");
+   *   DeleteEntityTypeRequest request = DeleteEntityTypeRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;Void&gt; future = entityTypesClient.deleteEntityTypeCallable().futureCall(request);
+   *   // Do something
+   *   future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<DeleteEntityTypeRequest, Empty> deleteEntityTypeCallable() {
+    return stub.deleteEntityTypeCallable();
+  }
+
+  @Override
+  public final void close() {
+    stub.close();
+  }
+
+  @Override
+  public void shutdown() {
+    stub.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return stub.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return stub.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    stub.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return stub.awaitTermination(duration, unit);
+  }
+
+  public static class ListEntityTypesPagedResponse
+      extends AbstractPagedListResponse<
+          ListEntityTypesRequest,
+          ListEntityTypesResponse,
+          EntityType,
+          ListEntityTypesPage,
+          ListEntityTypesFixedSizeCollection> {
+
+    public static ApiFuture<ListEntityTypesPagedResponse> createAsync(
+        PageContext<ListEntityTypesRequest, ListEntityTypesResponse, EntityType> context,
+        ApiFuture<ListEntityTypesResponse> futureResponse) {
+      ApiFuture<ListEntityTypesPage> futurePage =
+          ListEntityTypesPage.createEmptyPage().createPageAsync(context, futureResponse);
+      return ApiFutures.transform(
+          futurePage,
+          new ApiFunction<ListEntityTypesPage, ListEntityTypesPagedResponse>() {
+            @Override
+            public ListEntityTypesPagedResponse apply(ListEntityTypesPage input) {
+              return new ListEntityTypesPagedResponse(input);
+            }
+          },
+          MoreExecutors.directExecutor());
+    }
+
+    private ListEntityTypesPagedResponse(ListEntityTypesPage page) {
+      super(page, ListEntityTypesFixedSizeCollection.createEmptyCollection());
+    }
+  }
+
+  public static class ListEntityTypesPage
+      extends AbstractPage<
+          ListEntityTypesRequest, ListEntityTypesResponse, EntityType, ListEntityTypesPage> {
+
+    private ListEntityTypesPage(
+        PageContext<ListEntityTypesRequest, ListEntityTypesResponse, EntityType> context,
+        ListEntityTypesResponse response) {
+      super(context, response);
+    }
+
+    private static ListEntityTypesPage createEmptyPage() {
+      return new ListEntityTypesPage(null, null);
+    }
+
+    @Override
+    protected ListEntityTypesPage createPage(
+        PageContext<ListEntityTypesRequest, ListEntityTypesResponse, EntityType> context,
+        ListEntityTypesResponse response) {
+      return new ListEntityTypesPage(context, response);
+    }
+
+    @Override
+    public ApiFuture<ListEntityTypesPage> createPageAsync(
+        PageContext<ListEntityTypesRequest, ListEntityTypesResponse, EntityType> context,
+        ApiFuture<ListEntityTypesResponse> futureResponse) {
+      return super.createPageAsync(context, futureResponse);
+    }
+  }
+
+  public static class ListEntityTypesFixedSizeCollection
+      extends AbstractFixedSizeCollection<
+          ListEntityTypesRequest,
+          ListEntityTypesResponse,
+          EntityType,
+          ListEntityTypesPage,
+          ListEntityTypesFixedSizeCollection> {
+
+    private ListEntityTypesFixedSizeCollection(
+        List<ListEntityTypesPage> pages, int collectionSize) {
+      super(pages, collectionSize);
+    }
+
+    private static ListEntityTypesFixedSizeCollection createEmptyCollection() {
+      return new ListEntityTypesFixedSizeCollection(null, 0);
+    }
+
+    @Override
+    protected ListEntityTypesFixedSizeCollection createCollection(
+        List<ListEntityTypesPage> pages, int collectionSize) {
+      return new ListEntityTypesFixedSizeCollection(pages, collectionSize);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EntityTypesSettings.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EntityTypesSettings.java
new file mode 100644
index 000000000..08ef354c6
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EntityTypesSettings.java
@@ -0,0 +1,228 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.EntityTypesClient.ListEntityTypesPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientSettings;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.EntityTypesStubSettings;
+import com.google.protobuf.Empty;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Settings class to configure an instance of {@link EntityTypesClient}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getEntityType to 30 seconds:
+ *
+ * <pre>
+ * <code>
+ * EntityTypesSettings.Builder entityTypesSettingsBuilder =
+ *     EntityTypesSettings.newBuilder();
+ * entityTypesSettingsBuilder
+ *     .getEntityTypeSettings()
+ *     .setRetrySettings(
+ *         entityTypesSettingsBuilder.getEntityTypeSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * EntityTypesSettings entityTypesSettings = entityTypesSettingsBuilder.build();
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class EntityTypesSettings extends ClientSettings<EntityTypesSettings> {
+  /** Returns the object with the settings used for calls to listEntityTypes. */
+  public PagedCallSettings<
+          ListEntityTypesRequest, ListEntityTypesResponse, ListEntityTypesPagedResponse>
+      listEntityTypesSettings() {
+    return ((EntityTypesStubSettings) getStubSettings()).listEntityTypesSettings();
+  }
+
+  /** Returns the object with the settings used for calls to getEntityType. */
+  public UnaryCallSettings<GetEntityTypeRequest, EntityType> getEntityTypeSettings() {
+    return ((EntityTypesStubSettings) getStubSettings()).getEntityTypeSettings();
+  }
+
+  /** Returns the object with the settings used for calls to createEntityType. */
+  public UnaryCallSettings<CreateEntityTypeRequest, EntityType> createEntityTypeSettings() {
+    return ((EntityTypesStubSettings) getStubSettings()).createEntityTypeSettings();
+  }
+
+  /** Returns the object with the settings used for calls to updateEntityType. */
+  public UnaryCallSettings<UpdateEntityTypeRequest, EntityType> updateEntityTypeSettings() {
+    return ((EntityTypesStubSettings) getStubSettings()).updateEntityTypeSettings();
+  }
+
+  /** Returns the object with the settings used for calls to deleteEntityType. */
+  public UnaryCallSettings<DeleteEntityTypeRequest, Empty> deleteEntityTypeSettings() {
+    return ((EntityTypesStubSettings) getStubSettings()).deleteEntityTypeSettings();
+  }
+
+  public static final EntityTypesSettings create(EntityTypesStubSettings stub) throws IOException {
+    return new EntityTypesSettings.Builder(stub.toBuilder()).build();
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return EntityTypesStubSettings.defaultExecutorProviderBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return EntityTypesStubSettings.getDefaultEndpoint();
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return EntityTypesStubSettings.getDefaultServiceScopes();
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return EntityTypesStubSettings.defaultCredentialsProviderBuilder();
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return EntityTypesStubSettings.defaultGrpcTransportProviderBuilder();
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return EntityTypesStubSettings.defaultTransportChannelProvider();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return EntityTypesStubSettings.defaultApiClientHeaderProviderBuilder();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected EntityTypesSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+  }
+
+  /** Builder for EntityTypesSettings. */
+  public static class Builder extends ClientSettings.Builder<EntityTypesSettings, Builder> {
+    protected Builder() throws IOException {
+      this((ClientContext) null);
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(EntityTypesStubSettings.newBuilder(clientContext));
+    }
+
+    private static Builder createDefault() {
+      return new Builder(EntityTypesStubSettings.newBuilder());
+    }
+
+    protected Builder(EntityTypesSettings settings) {
+      super(settings.getStubSettings().toBuilder());
+    }
+
+    protected Builder(EntityTypesStubSettings.Builder stubSettings) {
+      super(stubSettings);
+    }
+
+    public EntityTypesStubSettings.Builder getStubSettingsBuilder() {
+      return ((EntityTypesStubSettings.Builder) getStubSettings());
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(
+          getStubSettingsBuilder().unaryMethodSettingsBuilders(), settingsUpdater);
+      return this;
+    }
+
+    /** Returns the builder for the settings used for calls to listEntityTypes. */
+    public PagedCallSettings.Builder<
+            ListEntityTypesRequest, ListEntityTypesResponse, ListEntityTypesPagedResponse>
+        listEntityTypesSettings() {
+      return getStubSettingsBuilder().listEntityTypesSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to getEntityType. */
+    public UnaryCallSettings.Builder<GetEntityTypeRequest, EntityType> getEntityTypeSettings() {
+      return getStubSettingsBuilder().getEntityTypeSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to createEntityType. */
+    public UnaryCallSettings.Builder<CreateEntityTypeRequest, EntityType>
+        createEntityTypeSettings() {
+      return getStubSettingsBuilder().createEntityTypeSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to updateEntityType. */
+    public UnaryCallSettings.Builder<UpdateEntityTypeRequest, EntityType>
+        updateEntityTypeSettings() {
+      return getStubSettingsBuilder().updateEntityTypeSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to deleteEntityType. */
+    public UnaryCallSettings.Builder<DeleteEntityTypeRequest, Empty> deleteEntityTypeSettings() {
+      return getStubSettingsBuilder().deleteEntityTypeSettings();
+    }
+
+    @Override
+    public EntityTypesSettings build() throws IOException {
+      return new EntityTypesSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentsClient.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentsClient.java
new file mode 100644
index 000000000..c6fec5e31
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentsClient.java
@@ -0,0 +1,1102 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.ApiFutures;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.longrunning.OperationFuture;
+import com.google.api.gax.paging.AbstractFixedSizeCollection;
+import com.google.api.gax.paging.AbstractPage;
+import com.google.api.gax.paging.AbstractPagedListResponse;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.EnvironmentsStub;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.EnvironmentsStubSettings;
+import com.google.common.util.concurrent.MoreExecutors;
+import com.google.longrunning.Operation;
+import com.google.longrunning.OperationsClient;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import com.google.protobuf.Struct;
+import java.io.IOException;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND SERVICE
+/**
+ * Service Description: Service for managing
+ * [Environments][google.cloud.dialogflow.cx.v3beta1.Environment].
+ *
+ * <p>This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * <pre>
+ * <code>
+ * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+ *   EnvironmentName name = EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+ *   Environment response = environmentsClient.getEnvironment(name);
+ * }
+ * </code>
+ * </pre>
+ *
+ * <p>Note: close() needs to be called on the environmentsClient object to clean up resources such
+ * as threads. In the example above, try-with-resources is used, which automatically calls close().
+ *
+ * <p>The surface of this class includes several types of Java methods for each of the API's
+ * methods:
+ *
+ * <ol>
+ *   <li>A "flattened" method. With this type of method, the fields of the request type have been
+ *       converted into function parameters. It may be the case that not all fields are available as
+ *       parameters, and not every API method will have a flattened method entry point.
+ *   <li>A "request object" method. This type of method only takes one parameter, a request object,
+ *       which must be constructed before the call. Not every API method will have a request object
+ *       method.
+ *   <li>A "callable" method. This type of method takes no parameters and returns an immutable API
+ *       callable object, which can be used to initiate calls to the service.
+ * </ol>
+ *
+ * <p>See the individual methods for example code.
+ *
+ * <p>Many parameters require resource names to be formatted in a particular way. To assist with
+ * these names, this class includes a format method for each type of name, and additionally a parse
+ * method to extract the individual identifiers contained within names that are returned.
+ *
+ * <p>This class can be customized by passing in a custom instance of EnvironmentsSettings to
+ * create(). For example:
+ *
+ * <p>To customize credentials:
+ *
+ * <pre>
+ * <code>
+ * EnvironmentsSettings environmentsSettings =
+ *     EnvironmentsSettings.newBuilder()
+ *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
+ *         .build();
+ * EnvironmentsClient environmentsClient =
+ *     EnvironmentsClient.create(environmentsSettings);
+ * </code>
+ * </pre>
+ *
+ * To customize the endpoint:
+ *
+ * <pre>
+ * <code>
+ * EnvironmentsSettings environmentsSettings =
+ *     EnvironmentsSettings.newBuilder().setEndpoint(myEndpoint).build();
+ * EnvironmentsClient environmentsClient =
+ *     EnvironmentsClient.create(environmentsSettings);
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class EnvironmentsClient implements BackgroundResource {
+  private final EnvironmentsSettings settings;
+  private final EnvironmentsStub stub;
+  private final OperationsClient operationsClient;
+
+  /** Constructs an instance of EnvironmentsClient with default settings. */
+  public static final EnvironmentsClient create() throws IOException {
+    return create(EnvironmentsSettings.newBuilder().build());
+  }
+
+  /**
+   * Constructs an instance of EnvironmentsClient, using the given settings. The channels are
+   * created based on the settings passed in, or defaults for any settings that are not set.
+   */
+  public static final EnvironmentsClient create(EnvironmentsSettings settings) throws IOException {
+    return new EnvironmentsClient(settings);
+  }
+
+  /**
+   * Constructs an instance of EnvironmentsClient, using the given stub for making calls. This is
+   * for advanced usage - prefer to use EnvironmentsSettings}.
+   */
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public static final EnvironmentsClient create(EnvironmentsStub stub) {
+    return new EnvironmentsClient(stub);
+  }
+
+  /**
+   * Constructs an instance of EnvironmentsClient, using the given settings. This is protected so
+   * that it is easy to make a subclass, but otherwise, the static factory methods should be
+   * preferred.
+   */
+  protected EnvironmentsClient(EnvironmentsSettings settings) throws IOException {
+    this.settings = settings;
+    this.stub = ((EnvironmentsStubSettings) settings.getStubSettings()).createStub();
+    this.operationsClient = OperationsClient.create(this.stub.getOperationsStub());
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  protected EnvironmentsClient(EnvironmentsStub stub) {
+    this.settings = null;
+    this.stub = stub;
+    this.operationsClient = OperationsClient.create(this.stub.getOperationsStub());
+  }
+
+  public final EnvironmentsSettings getSettings() {
+    return settings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public EnvironmentsStub getStub() {
+    return stub;
+  }
+
+  /**
+   * Returns the OperationsClient that can be used to query the status of a long-running operation
+   * returned by another API method call.
+   */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public final OperationsClient getOperationsClient() {
+    return operationsClient;
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all environments in the specified
+   * [Agent][google.cloud.dialogflow.cx.v3beta1.Agent].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   for (Environment element : environmentsClient.listEnvironments(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to list all
+   *     environments for. Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+   *     ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListEnvironmentsPagedResponse listEnvironments(AgentName parent) {
+    ListEnvironmentsRequest request =
+        ListEnvironmentsRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .build();
+    return listEnvironments(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all environments in the specified
+   * [Agent][google.cloud.dialogflow.cx.v3beta1.Agent].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   for (Environment element : environmentsClient.listEnvironments(parent.toString()).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to list all
+   *     environments for. Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+   *     ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListEnvironmentsPagedResponse listEnvironments(String parent) {
+    ListEnvironmentsRequest request =
+        ListEnvironmentsRequest.newBuilder().setParent(parent).build();
+    return listEnvironments(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all environments in the specified
+   * [Agent][google.cloud.dialogflow.cx.v3beta1.Agent].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   ListEnvironmentsRequest request = ListEnvironmentsRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   for (Environment element : environmentsClient.listEnvironments(request).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListEnvironmentsPagedResponse listEnvironments(ListEnvironmentsRequest request) {
+    return listEnvironmentsPagedCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all environments in the specified
+   * [Agent][google.cloud.dialogflow.cx.v3beta1.Agent].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   ListEnvironmentsRequest request = ListEnvironmentsRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   ApiFuture&lt;ListEnvironmentsPagedResponse&gt; future = environmentsClient.listEnvironmentsPagedCallable().futureCall(request);
+   *   // Do something
+   *   for (Environment element : future.get().iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<ListEnvironmentsRequest, ListEnvironmentsPagedResponse>
+      listEnvironmentsPagedCallable() {
+    return stub.listEnvironmentsPagedCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all environments in the specified
+   * [Agent][google.cloud.dialogflow.cx.v3beta1.Agent].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   ListEnvironmentsRequest request = ListEnvironmentsRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   while (true) {
+   *     ListEnvironmentsResponse response = environmentsClient.listEnvironmentsCallable().call(request);
+   *     for (Environment element : response.getEnvironmentsList()) {
+   *       // doThingsWith(element);
+   *     }
+   *     String nextPageToken = response.getNextPageToken();
+   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
+   *       request = request.toBuilder().setPageToken(nextPageToken).build();
+   *     } else {
+   *       break;
+   *     }
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<ListEnvironmentsRequest, ListEnvironmentsResponse>
+      listEnvironmentsCallable() {
+    return stub.listEnvironmentsCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   EnvironmentName name = EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+   *   Environment response = environmentsClient.getEnvironment(name);
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the
+   *     [Environment][google.cloud.dialogflow.cx.v3beta1.Environment]. Format:
+   *     `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/environments/&lt;Environment ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Environment getEnvironment(EnvironmentName name) {
+    GetEnvironmentRequest request =
+        GetEnvironmentRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    return getEnvironment(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   EnvironmentName name = EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+   *   Environment response = environmentsClient.getEnvironment(name.toString());
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the
+   *     [Environment][google.cloud.dialogflow.cx.v3beta1.Environment]. Format:
+   *     `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/environments/&lt;Environment ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Environment getEnvironment(String name) {
+    GetEnvironmentRequest request = GetEnvironmentRequest.newBuilder().setName(name).build();
+    return getEnvironment(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   EnvironmentName name = EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+   *   GetEnvironmentRequest request = GetEnvironmentRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   Environment response = environmentsClient.getEnvironment(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Environment getEnvironment(GetEnvironmentRequest request) {
+    return getEnvironmentCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   EnvironmentName name = EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+   *   GetEnvironmentRequest request = GetEnvironmentRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;Environment&gt; future = environmentsClient.getEnvironmentCallable().futureCall(request);
+   *   // Do something
+   *   Environment response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<GetEnvironmentRequest, Environment> getEnvironmentCallable() {
+    return stub.getEnvironmentCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates an [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] in the specified
+   * [Agent][google.cloud.dialogflow.cx.v3beta1.Agent].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   Environment environment = Environment.newBuilder().build();
+   *   Environment response = environmentsClient.createEnvironmentAsync(parent, environment).get();
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to create an
+   *     [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] for. Format:
+   *     `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @param environment Required. The environment to create.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public final OperationFuture<Environment, Struct> createEnvironmentAsync(
+      AgentName parent, Environment environment) {
+    CreateEnvironmentRequest request =
+        CreateEnvironmentRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .setEnvironment(environment)
+            .build();
+    return createEnvironmentAsync(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates an [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] in the specified
+   * [Agent][google.cloud.dialogflow.cx.v3beta1.Agent].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   Environment environment = Environment.newBuilder().build();
+   *   Environment response = environmentsClient.createEnvironmentAsync(parent.toString(), environment).get();
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to create an
+   *     [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] for. Format:
+   *     `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @param environment Required. The environment to create.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public final OperationFuture<Environment, Struct> createEnvironmentAsync(
+      String parent, Environment environment) {
+    CreateEnvironmentRequest request =
+        CreateEnvironmentRequest.newBuilder().setParent(parent).setEnvironment(environment).build();
+    return createEnvironmentAsync(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates an [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] in the specified
+   * [Agent][google.cloud.dialogflow.cx.v3beta1.Agent].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   Environment environment = Environment.newBuilder().build();
+   *   CreateEnvironmentRequest request = CreateEnvironmentRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .setEnvironment(environment)
+   *     .build();
+   *   Environment response = environmentsClient.createEnvironmentAsync(request).get();
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public final OperationFuture<Environment, Struct> createEnvironmentAsync(
+      CreateEnvironmentRequest request) {
+    return createEnvironmentOperationCallable().futureCall(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates an [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] in the specified
+   * [Agent][google.cloud.dialogflow.cx.v3beta1.Agent].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   Environment environment = Environment.newBuilder().build();
+   *   CreateEnvironmentRequest request = CreateEnvironmentRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .setEnvironment(environment)
+   *     .build();
+   *   OperationFuture&lt;Environment, Struct&gt; future = environmentsClient.createEnvironmentOperationCallable().futureCall(request);
+   *   // Do something
+   *   Environment response = future.get();
+   * }
+   * </code></pre>
+   */
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public final OperationCallable<CreateEnvironmentRequest, Environment, Struct>
+      createEnvironmentOperationCallable() {
+    return stub.createEnvironmentOperationCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates an [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] in the specified
+   * [Agent][google.cloud.dialogflow.cx.v3beta1.Agent].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   Environment environment = Environment.newBuilder().build();
+   *   CreateEnvironmentRequest request = CreateEnvironmentRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .setEnvironment(environment)
+   *     .build();
+   *   ApiFuture&lt;Operation&gt; future = environmentsClient.createEnvironmentCallable().futureCall(request);
+   *   // Do something
+   *   Operation response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<CreateEnvironmentRequest, Operation> createEnvironmentCallable() {
+    return stub.createEnvironmentCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   Environment environment = Environment.newBuilder().build();
+   *   FieldMask updateMask = FieldMask.newBuilder().build();
+   *   Environment response = environmentsClient.updateEnvironmentAsync(environment, updateMask).get();
+   * }
+   * </code></pre>
+   *
+   * @param environment Required. The environment to update.
+   * @param updateMask Required. The mask to control which fields get updated.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public final OperationFuture<Environment, Struct> updateEnvironmentAsync(
+      Environment environment, FieldMask updateMask) {
+    UpdateEnvironmentRequest request =
+        UpdateEnvironmentRequest.newBuilder()
+            .setEnvironment(environment)
+            .setUpdateMask(updateMask)
+            .build();
+    return updateEnvironmentAsync(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   Environment environment = Environment.newBuilder().build();
+   *   FieldMask updateMask = FieldMask.newBuilder().build();
+   *   UpdateEnvironmentRequest request = UpdateEnvironmentRequest.newBuilder()
+   *     .setEnvironment(environment)
+   *     .setUpdateMask(updateMask)
+   *     .build();
+   *   Environment response = environmentsClient.updateEnvironmentAsync(request).get();
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public final OperationFuture<Environment, Struct> updateEnvironmentAsync(
+      UpdateEnvironmentRequest request) {
+    return updateEnvironmentOperationCallable().futureCall(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   Environment environment = Environment.newBuilder().build();
+   *   FieldMask updateMask = FieldMask.newBuilder().build();
+   *   UpdateEnvironmentRequest request = UpdateEnvironmentRequest.newBuilder()
+   *     .setEnvironment(environment)
+   *     .setUpdateMask(updateMask)
+   *     .build();
+   *   OperationFuture&lt;Environment, Struct&gt; future = environmentsClient.updateEnvironmentOperationCallable().futureCall(request);
+   *   // Do something
+   *   Environment response = future.get();
+   * }
+   * </code></pre>
+   */
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public final OperationCallable<UpdateEnvironmentRequest, Environment, Struct>
+      updateEnvironmentOperationCallable() {
+    return stub.updateEnvironmentOperationCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   Environment environment = Environment.newBuilder().build();
+   *   FieldMask updateMask = FieldMask.newBuilder().build();
+   *   UpdateEnvironmentRequest request = UpdateEnvironmentRequest.newBuilder()
+   *     .setEnvironment(environment)
+   *     .setUpdateMask(updateMask)
+   *     .build();
+   *   ApiFuture&lt;Operation&gt; future = environmentsClient.updateEnvironmentCallable().futureCall(request);
+   *   // Do something
+   *   Operation response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<UpdateEnvironmentRequest, Operation> updateEnvironmentCallable() {
+    return stub.updateEnvironmentCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   EnvironmentName name = EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+   *   environmentsClient.deleteEnvironment(name);
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the
+   *     [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] to delete. Format:
+   *     `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/environments/&lt;Environment ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteEnvironment(EnvironmentName name) {
+    DeleteEnvironmentRequest request =
+        DeleteEnvironmentRequest.newBuilder()
+            .setName(name == null ? null : name.toString())
+            .build();
+    deleteEnvironment(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   EnvironmentName name = EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+   *   environmentsClient.deleteEnvironment(name.toString());
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the
+   *     [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] to delete. Format:
+   *     `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/environments/&lt;Environment ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteEnvironment(String name) {
+    DeleteEnvironmentRequest request = DeleteEnvironmentRequest.newBuilder().setName(name).build();
+    deleteEnvironment(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   EnvironmentName name = EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+   *   DeleteEnvironmentRequest request = DeleteEnvironmentRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   environmentsClient.deleteEnvironment(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteEnvironment(DeleteEnvironmentRequest request) {
+    deleteEnvironmentCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   EnvironmentName name = EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+   *   DeleteEnvironmentRequest request = DeleteEnvironmentRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;Void&gt; future = environmentsClient.deleteEnvironmentCallable().futureCall(request);
+   *   // Do something
+   *   future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<DeleteEnvironmentRequest, Empty> deleteEnvironmentCallable() {
+    return stub.deleteEnvironmentCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Looks up the history of the specified
+   * [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   EnvironmentName name = EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+   *   for (Environment element : environmentsClient.lookupEnvironmentHistory(name).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param name Required. Resource name of the environment to look up the history for. Format:
+   *     `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/environments/&lt;Environment ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final LookupEnvironmentHistoryPagedResponse lookupEnvironmentHistory(
+      EnvironmentName name) {
+    LookupEnvironmentHistoryRequest request =
+        LookupEnvironmentHistoryRequest.newBuilder()
+            .setName(name == null ? null : name.toString())
+            .build();
+    return lookupEnvironmentHistory(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Looks up the history of the specified
+   * [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   EnvironmentName name = EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+   *   for (Environment element : environmentsClient.lookupEnvironmentHistory(name.toString()).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param name Required. Resource name of the environment to look up the history for. Format:
+   *     `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/environments/&lt;Environment ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final LookupEnvironmentHistoryPagedResponse lookupEnvironmentHistory(String name) {
+    LookupEnvironmentHistoryRequest request =
+        LookupEnvironmentHistoryRequest.newBuilder().setName(name).build();
+    return lookupEnvironmentHistory(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Looks up the history of the specified
+   * [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   EnvironmentName name = EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+   *   LookupEnvironmentHistoryRequest request = LookupEnvironmentHistoryRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   for (Environment element : environmentsClient.lookupEnvironmentHistory(request).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final LookupEnvironmentHistoryPagedResponse lookupEnvironmentHistory(
+      LookupEnvironmentHistoryRequest request) {
+    return lookupEnvironmentHistoryPagedCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Looks up the history of the specified
+   * [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   EnvironmentName name = EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+   *   LookupEnvironmentHistoryRequest request = LookupEnvironmentHistoryRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;LookupEnvironmentHistoryPagedResponse&gt; future = environmentsClient.lookupEnvironmentHistoryPagedCallable().futureCall(request);
+   *   // Do something
+   *   for (Environment element : future.get().iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<LookupEnvironmentHistoryRequest, LookupEnvironmentHistoryPagedResponse>
+      lookupEnvironmentHistoryPagedCallable() {
+    return stub.lookupEnvironmentHistoryPagedCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Looks up the history of the specified
+   * [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   EnvironmentName name = EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+   *   LookupEnvironmentHistoryRequest request = LookupEnvironmentHistoryRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   while (true) {
+   *     LookupEnvironmentHistoryResponse response = environmentsClient.lookupEnvironmentHistoryCallable().call(request);
+   *     for (Environment element : response.getEnvironmentsList()) {
+   *       // doThingsWith(element);
+   *     }
+   *     String nextPageToken = response.getNextPageToken();
+   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
+   *       request = request.toBuilder().setPageToken(nextPageToken).build();
+   *     } else {
+   *       break;
+   *     }
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<LookupEnvironmentHistoryRequest, LookupEnvironmentHistoryResponse>
+      lookupEnvironmentHistoryCallable() {
+    return stub.lookupEnvironmentHistoryCallable();
+  }
+
+  @Override
+  public final void close() {
+    stub.close();
+  }
+
+  @Override
+  public void shutdown() {
+    stub.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return stub.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return stub.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    stub.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return stub.awaitTermination(duration, unit);
+  }
+
+  public static class ListEnvironmentsPagedResponse
+      extends AbstractPagedListResponse<
+          ListEnvironmentsRequest,
+          ListEnvironmentsResponse,
+          Environment,
+          ListEnvironmentsPage,
+          ListEnvironmentsFixedSizeCollection> {
+
+    public static ApiFuture<ListEnvironmentsPagedResponse> createAsync(
+        PageContext<ListEnvironmentsRequest, ListEnvironmentsResponse, Environment> context,
+        ApiFuture<ListEnvironmentsResponse> futureResponse) {
+      ApiFuture<ListEnvironmentsPage> futurePage =
+          ListEnvironmentsPage.createEmptyPage().createPageAsync(context, futureResponse);
+      return ApiFutures.transform(
+          futurePage,
+          new ApiFunction<ListEnvironmentsPage, ListEnvironmentsPagedResponse>() {
+            @Override
+            public ListEnvironmentsPagedResponse apply(ListEnvironmentsPage input) {
+              return new ListEnvironmentsPagedResponse(input);
+            }
+          },
+          MoreExecutors.directExecutor());
+    }
+
+    private ListEnvironmentsPagedResponse(ListEnvironmentsPage page) {
+      super(page, ListEnvironmentsFixedSizeCollection.createEmptyCollection());
+    }
+  }
+
+  public static class ListEnvironmentsPage
+      extends AbstractPage<
+          ListEnvironmentsRequest, ListEnvironmentsResponse, Environment, ListEnvironmentsPage> {
+
+    private ListEnvironmentsPage(
+        PageContext<ListEnvironmentsRequest, ListEnvironmentsResponse, Environment> context,
+        ListEnvironmentsResponse response) {
+      super(context, response);
+    }
+
+    private static ListEnvironmentsPage createEmptyPage() {
+      return new ListEnvironmentsPage(null, null);
+    }
+
+    @Override
+    protected ListEnvironmentsPage createPage(
+        PageContext<ListEnvironmentsRequest, ListEnvironmentsResponse, Environment> context,
+        ListEnvironmentsResponse response) {
+      return new ListEnvironmentsPage(context, response);
+    }
+
+    @Override
+    public ApiFuture<ListEnvironmentsPage> createPageAsync(
+        PageContext<ListEnvironmentsRequest, ListEnvironmentsResponse, Environment> context,
+        ApiFuture<ListEnvironmentsResponse> futureResponse) {
+      return super.createPageAsync(context, futureResponse);
+    }
+  }
+
+  public static class ListEnvironmentsFixedSizeCollection
+      extends AbstractFixedSizeCollection<
+          ListEnvironmentsRequest,
+          ListEnvironmentsResponse,
+          Environment,
+          ListEnvironmentsPage,
+          ListEnvironmentsFixedSizeCollection> {
+
+    private ListEnvironmentsFixedSizeCollection(
+        List<ListEnvironmentsPage> pages, int collectionSize) {
+      super(pages, collectionSize);
+    }
+
+    private static ListEnvironmentsFixedSizeCollection createEmptyCollection() {
+      return new ListEnvironmentsFixedSizeCollection(null, 0);
+    }
+
+    @Override
+    protected ListEnvironmentsFixedSizeCollection createCollection(
+        List<ListEnvironmentsPage> pages, int collectionSize) {
+      return new ListEnvironmentsFixedSizeCollection(pages, collectionSize);
+    }
+  }
+
+  public static class LookupEnvironmentHistoryPagedResponse
+      extends AbstractPagedListResponse<
+          LookupEnvironmentHistoryRequest,
+          LookupEnvironmentHistoryResponse,
+          Environment,
+          LookupEnvironmentHistoryPage,
+          LookupEnvironmentHistoryFixedSizeCollection> {
+
+    public static ApiFuture<LookupEnvironmentHistoryPagedResponse> createAsync(
+        PageContext<LookupEnvironmentHistoryRequest, LookupEnvironmentHistoryResponse, Environment>
+            context,
+        ApiFuture<LookupEnvironmentHistoryResponse> futureResponse) {
+      ApiFuture<LookupEnvironmentHistoryPage> futurePage =
+          LookupEnvironmentHistoryPage.createEmptyPage().createPageAsync(context, futureResponse);
+      return ApiFutures.transform(
+          futurePage,
+          new ApiFunction<LookupEnvironmentHistoryPage, LookupEnvironmentHistoryPagedResponse>() {
+            @Override
+            public LookupEnvironmentHistoryPagedResponse apply(LookupEnvironmentHistoryPage input) {
+              return new LookupEnvironmentHistoryPagedResponse(input);
+            }
+          },
+          MoreExecutors.directExecutor());
+    }
+
+    private LookupEnvironmentHistoryPagedResponse(LookupEnvironmentHistoryPage page) {
+      super(page, LookupEnvironmentHistoryFixedSizeCollection.createEmptyCollection());
+    }
+  }
+
+  public static class LookupEnvironmentHistoryPage
+      extends AbstractPage<
+          LookupEnvironmentHistoryRequest,
+          LookupEnvironmentHistoryResponse,
+          Environment,
+          LookupEnvironmentHistoryPage> {
+
+    private LookupEnvironmentHistoryPage(
+        PageContext<LookupEnvironmentHistoryRequest, LookupEnvironmentHistoryResponse, Environment>
+            context,
+        LookupEnvironmentHistoryResponse response) {
+      super(context, response);
+    }
+
+    private static LookupEnvironmentHistoryPage createEmptyPage() {
+      return new LookupEnvironmentHistoryPage(null, null);
+    }
+
+    @Override
+    protected LookupEnvironmentHistoryPage createPage(
+        PageContext<LookupEnvironmentHistoryRequest, LookupEnvironmentHistoryResponse, Environment>
+            context,
+        LookupEnvironmentHistoryResponse response) {
+      return new LookupEnvironmentHistoryPage(context, response);
+    }
+
+    @Override
+    public ApiFuture<LookupEnvironmentHistoryPage> createPageAsync(
+        PageContext<LookupEnvironmentHistoryRequest, LookupEnvironmentHistoryResponse, Environment>
+            context,
+        ApiFuture<LookupEnvironmentHistoryResponse> futureResponse) {
+      return super.createPageAsync(context, futureResponse);
+    }
+  }
+
+  public static class LookupEnvironmentHistoryFixedSizeCollection
+      extends AbstractFixedSizeCollection<
+          LookupEnvironmentHistoryRequest,
+          LookupEnvironmentHistoryResponse,
+          Environment,
+          LookupEnvironmentHistoryPage,
+          LookupEnvironmentHistoryFixedSizeCollection> {
+
+    private LookupEnvironmentHistoryFixedSizeCollection(
+        List<LookupEnvironmentHistoryPage> pages, int collectionSize) {
+      super(pages, collectionSize);
+    }
+
+    private static LookupEnvironmentHistoryFixedSizeCollection createEmptyCollection() {
+      return new LookupEnvironmentHistoryFixedSizeCollection(null, 0);
+    }
+
+    @Override
+    protected LookupEnvironmentHistoryFixedSizeCollection createCollection(
+        List<LookupEnvironmentHistoryPage> pages, int collectionSize) {
+      return new LookupEnvironmentHistoryFixedSizeCollection(pages, collectionSize);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentsSettings.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentsSettings.java
new file mode 100644
index 000000000..608ddfaa4
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentsSettings.java
@@ -0,0 +1,283 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.EnvironmentsClient.ListEnvironmentsPagedResponse;
+import static com.google.cloud.dialogflow.cx.v3beta1.EnvironmentsClient.LookupEnvironmentHistoryPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientSettings;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.EnvironmentsStubSettings;
+import com.google.longrunning.Operation;
+import com.google.protobuf.Empty;
+import com.google.protobuf.Struct;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Settings class to configure an instance of {@link EnvironmentsClient}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getEnvironment to 30 seconds:
+ *
+ * <pre>
+ * <code>
+ * EnvironmentsSettings.Builder environmentsSettingsBuilder =
+ *     EnvironmentsSettings.newBuilder();
+ * environmentsSettingsBuilder
+ *     .getEnvironmentSettings()
+ *     .setRetrySettings(
+ *         environmentsSettingsBuilder.getEnvironmentSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * EnvironmentsSettings environmentsSettings = environmentsSettingsBuilder.build();
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class EnvironmentsSettings extends ClientSettings<EnvironmentsSettings> {
+  /** Returns the object with the settings used for calls to listEnvironments. */
+  public PagedCallSettings<
+          ListEnvironmentsRequest, ListEnvironmentsResponse, ListEnvironmentsPagedResponse>
+      listEnvironmentsSettings() {
+    return ((EnvironmentsStubSettings) getStubSettings()).listEnvironmentsSettings();
+  }
+
+  /** Returns the object with the settings used for calls to getEnvironment. */
+  public UnaryCallSettings<GetEnvironmentRequest, Environment> getEnvironmentSettings() {
+    return ((EnvironmentsStubSettings) getStubSettings()).getEnvironmentSettings();
+  }
+
+  /** Returns the object with the settings used for calls to createEnvironment. */
+  public UnaryCallSettings<CreateEnvironmentRequest, Operation> createEnvironmentSettings() {
+    return ((EnvironmentsStubSettings) getStubSettings()).createEnvironmentSettings();
+  }
+
+  /** Returns the object with the settings used for calls to createEnvironment. */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public OperationCallSettings<CreateEnvironmentRequest, Environment, Struct>
+      createEnvironmentOperationSettings() {
+    return ((EnvironmentsStubSettings) getStubSettings()).createEnvironmentOperationSettings();
+  }
+
+  /** Returns the object with the settings used for calls to updateEnvironment. */
+  public UnaryCallSettings<UpdateEnvironmentRequest, Operation> updateEnvironmentSettings() {
+    return ((EnvironmentsStubSettings) getStubSettings()).updateEnvironmentSettings();
+  }
+
+  /** Returns the object with the settings used for calls to updateEnvironment. */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public OperationCallSettings<UpdateEnvironmentRequest, Environment, Struct>
+      updateEnvironmentOperationSettings() {
+    return ((EnvironmentsStubSettings) getStubSettings()).updateEnvironmentOperationSettings();
+  }
+
+  /** Returns the object with the settings used for calls to deleteEnvironment. */
+  public UnaryCallSettings<DeleteEnvironmentRequest, Empty> deleteEnvironmentSettings() {
+    return ((EnvironmentsStubSettings) getStubSettings()).deleteEnvironmentSettings();
+  }
+
+  /** Returns the object with the settings used for calls to lookupEnvironmentHistory. */
+  public PagedCallSettings<
+          LookupEnvironmentHistoryRequest,
+          LookupEnvironmentHistoryResponse,
+          LookupEnvironmentHistoryPagedResponse>
+      lookupEnvironmentHistorySettings() {
+    return ((EnvironmentsStubSettings) getStubSettings()).lookupEnvironmentHistorySettings();
+  }
+
+  public static final EnvironmentsSettings create(EnvironmentsStubSettings stub)
+      throws IOException {
+    return new EnvironmentsSettings.Builder(stub.toBuilder()).build();
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return EnvironmentsStubSettings.defaultExecutorProviderBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return EnvironmentsStubSettings.getDefaultEndpoint();
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return EnvironmentsStubSettings.getDefaultServiceScopes();
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return EnvironmentsStubSettings.defaultCredentialsProviderBuilder();
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return EnvironmentsStubSettings.defaultGrpcTransportProviderBuilder();
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return EnvironmentsStubSettings.defaultTransportChannelProvider();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return EnvironmentsStubSettings.defaultApiClientHeaderProviderBuilder();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected EnvironmentsSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+  }
+
+  /** Builder for EnvironmentsSettings. */
+  public static class Builder extends ClientSettings.Builder<EnvironmentsSettings, Builder> {
+    protected Builder() throws IOException {
+      this((ClientContext) null);
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(EnvironmentsStubSettings.newBuilder(clientContext));
+    }
+
+    private static Builder createDefault() {
+      return new Builder(EnvironmentsStubSettings.newBuilder());
+    }
+
+    protected Builder(EnvironmentsSettings settings) {
+      super(settings.getStubSettings().toBuilder());
+    }
+
+    protected Builder(EnvironmentsStubSettings.Builder stubSettings) {
+      super(stubSettings);
+    }
+
+    public EnvironmentsStubSettings.Builder getStubSettingsBuilder() {
+      return ((EnvironmentsStubSettings.Builder) getStubSettings());
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(
+          getStubSettingsBuilder().unaryMethodSettingsBuilders(), settingsUpdater);
+      return this;
+    }
+
+    /** Returns the builder for the settings used for calls to listEnvironments. */
+    public PagedCallSettings.Builder<
+            ListEnvironmentsRequest, ListEnvironmentsResponse, ListEnvironmentsPagedResponse>
+        listEnvironmentsSettings() {
+      return getStubSettingsBuilder().listEnvironmentsSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to getEnvironment. */
+    public UnaryCallSettings.Builder<GetEnvironmentRequest, Environment> getEnvironmentSettings() {
+      return getStubSettingsBuilder().getEnvironmentSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to createEnvironment. */
+    public UnaryCallSettings.Builder<CreateEnvironmentRequest, Operation>
+        createEnvironmentSettings() {
+      return getStubSettingsBuilder().createEnvironmentSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to createEnvironment. */
+    @BetaApi(
+        "The surface for long-running operations is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<CreateEnvironmentRequest, Environment, Struct>
+        createEnvironmentOperationSettings() {
+      return getStubSettingsBuilder().createEnvironmentOperationSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to updateEnvironment. */
+    public UnaryCallSettings.Builder<UpdateEnvironmentRequest, Operation>
+        updateEnvironmentSettings() {
+      return getStubSettingsBuilder().updateEnvironmentSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to updateEnvironment. */
+    @BetaApi(
+        "The surface for long-running operations is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<UpdateEnvironmentRequest, Environment, Struct>
+        updateEnvironmentOperationSettings() {
+      return getStubSettingsBuilder().updateEnvironmentOperationSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to deleteEnvironment. */
+    public UnaryCallSettings.Builder<DeleteEnvironmentRequest, Empty> deleteEnvironmentSettings() {
+      return getStubSettingsBuilder().deleteEnvironmentSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to lookupEnvironmentHistory. */
+    public PagedCallSettings.Builder<
+            LookupEnvironmentHistoryRequest,
+            LookupEnvironmentHistoryResponse,
+            LookupEnvironmentHistoryPagedResponse>
+        lookupEnvironmentHistorySettings() {
+      return getStubSettingsBuilder().lookupEnvironmentHistorySettings();
+    }
+
+    @Override
+    public EnvironmentsSettings build() throws IOException {
+      return new EnvironmentsSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowsClient.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowsClient.java
new file mode 100644
index 000000000..1aba5a124
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowsClient.java
@@ -0,0 +1,880 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.ApiFutures;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.longrunning.OperationFuture;
+import com.google.api.gax.paging.AbstractFixedSizeCollection;
+import com.google.api.gax.paging.AbstractPage;
+import com.google.api.gax.paging.AbstractPagedListResponse;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.FlowsStub;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.FlowsStubSettings;
+import com.google.common.util.concurrent.MoreExecutors;
+import com.google.longrunning.Operation;
+import com.google.longrunning.OperationsClient;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import com.google.protobuf.Struct;
+import java.io.IOException;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND SERVICE
+/**
+ * Service Description: Service for managing [Flows][google.cloud.dialogflow.cx.v3beta1.Flow].
+ *
+ * <p>This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * <pre>
+ * <code>
+ * try (FlowsClient flowsClient = FlowsClient.create()) {
+ *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+ *   Flow flow = Flow.newBuilder().build();
+ *   Flow response = flowsClient.createFlow(parent, flow);
+ * }
+ * </code>
+ * </pre>
+ *
+ * <p>Note: close() needs to be called on the flowsClient object to clean up resources such as
+ * threads. In the example above, try-with-resources is used, which automatically calls close().
+ *
+ * <p>The surface of this class includes several types of Java methods for each of the API's
+ * methods:
+ *
+ * <ol>
+ *   <li>A "flattened" method. With this type of method, the fields of the request type have been
+ *       converted into function parameters. It may be the case that not all fields are available as
+ *       parameters, and not every API method will have a flattened method entry point.
+ *   <li>A "request object" method. This type of method only takes one parameter, a request object,
+ *       which must be constructed before the call. Not every API method will have a request object
+ *       method.
+ *   <li>A "callable" method. This type of method takes no parameters and returns an immutable API
+ *       callable object, which can be used to initiate calls to the service.
+ * </ol>
+ *
+ * <p>See the individual methods for example code.
+ *
+ * <p>Many parameters require resource names to be formatted in a particular way. To assist with
+ * these names, this class includes a format method for each type of name, and additionally a parse
+ * method to extract the individual identifiers contained within names that are returned.
+ *
+ * <p>This class can be customized by passing in a custom instance of FlowsSettings to create(). For
+ * example:
+ *
+ * <p>To customize credentials:
+ *
+ * <pre>
+ * <code>
+ * FlowsSettings flowsSettings =
+ *     FlowsSettings.newBuilder()
+ *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
+ *         .build();
+ * FlowsClient flowsClient =
+ *     FlowsClient.create(flowsSettings);
+ * </code>
+ * </pre>
+ *
+ * To customize the endpoint:
+ *
+ * <pre>
+ * <code>
+ * FlowsSettings flowsSettings =
+ *     FlowsSettings.newBuilder().setEndpoint(myEndpoint).build();
+ * FlowsClient flowsClient =
+ *     FlowsClient.create(flowsSettings);
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class FlowsClient implements BackgroundResource {
+  private final FlowsSettings settings;
+  private final FlowsStub stub;
+  private final OperationsClient operationsClient;
+
+  /** Constructs an instance of FlowsClient with default settings. */
+  public static final FlowsClient create() throws IOException {
+    return create(FlowsSettings.newBuilder().build());
+  }
+
+  /**
+   * Constructs an instance of FlowsClient, using the given settings. The channels are created based
+   * on the settings passed in, or defaults for any settings that are not set.
+   */
+  public static final FlowsClient create(FlowsSettings settings) throws IOException {
+    return new FlowsClient(settings);
+  }
+
+  /**
+   * Constructs an instance of FlowsClient, using the given stub for making calls. This is for
+   * advanced usage - prefer to use FlowsSettings}.
+   */
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public static final FlowsClient create(FlowsStub stub) {
+    return new FlowsClient(stub);
+  }
+
+  /**
+   * Constructs an instance of FlowsClient, using the given settings. This is protected so that it
+   * is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected FlowsClient(FlowsSettings settings) throws IOException {
+    this.settings = settings;
+    this.stub = ((FlowsStubSettings) settings.getStubSettings()).createStub();
+    this.operationsClient = OperationsClient.create(this.stub.getOperationsStub());
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  protected FlowsClient(FlowsStub stub) {
+    this.settings = null;
+    this.stub = stub;
+    this.operationsClient = OperationsClient.create(this.stub.getOperationsStub());
+  }
+
+  public final FlowsSettings getSettings() {
+    return settings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public FlowsStub getStub() {
+    return stub;
+  }
+
+  /**
+   * Returns the OperationsClient that can be used to query the status of a long-running operation
+   * returned by another API method call.
+   */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public final OperationsClient getOperationsClient() {
+    return operationsClient;
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates a flow in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   Flow flow = Flow.newBuilder().build();
+   *   Flow response = flowsClient.createFlow(parent, flow);
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The agent to create a flow for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @param flow Required. The flow to create.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Flow createFlow(AgentName parent, Flow flow) {
+    CreateFlowRequest request =
+        CreateFlowRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .setFlow(flow)
+            .build();
+    return createFlow(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates a flow in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   Flow flow = Flow.newBuilder().build();
+   *   Flow response = flowsClient.createFlow(parent.toString(), flow);
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The agent to create a flow for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @param flow Required. The flow to create.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Flow createFlow(String parent, Flow flow) {
+    CreateFlowRequest request =
+        CreateFlowRequest.newBuilder().setParent(parent).setFlow(flow).build();
+    return createFlow(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates a flow in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   Flow flow = Flow.newBuilder().build();
+   *   CreateFlowRequest request = CreateFlowRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .setFlow(flow)
+   *     .build();
+   *   Flow response = flowsClient.createFlow(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Flow createFlow(CreateFlowRequest request) {
+    return createFlowCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates a flow in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   Flow flow = Flow.newBuilder().build();
+   *   CreateFlowRequest request = CreateFlowRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .setFlow(flow)
+   *     .build();
+   *   ApiFuture&lt;Flow&gt; future = flowsClient.createFlowCallable().futureCall(request);
+   *   // Do something
+   *   Flow response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<CreateFlowRequest, Flow> createFlowCallable() {
+    return stub.createFlowCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes a specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   FlowName name = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   flowsClient.deleteFlow(name);
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the flow to delete. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/flows/&lt;Flow ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteFlow(FlowName name) {
+    DeleteFlowRequest request =
+        DeleteFlowRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    deleteFlow(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes a specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   FlowName name = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   flowsClient.deleteFlow(name.toString());
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the flow to delete. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/flows/&lt;Flow ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteFlow(String name) {
+    DeleteFlowRequest request = DeleteFlowRequest.newBuilder().setName(name).build();
+    deleteFlow(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes a specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   FlowName name = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   DeleteFlowRequest request = DeleteFlowRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   flowsClient.deleteFlow(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteFlow(DeleteFlowRequest request) {
+    deleteFlowCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes a specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   FlowName name = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   DeleteFlowRequest request = DeleteFlowRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;Void&gt; future = flowsClient.deleteFlowCallable().futureCall(request);
+   *   // Do something
+   *   future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<DeleteFlowRequest, Empty> deleteFlowCallable() {
+    return stub.deleteFlowCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all flows in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   for (Flow element : flowsClient.listFlows(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The agent containing the flows. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListFlowsPagedResponse listFlows(AgentName parent) {
+    ListFlowsRequest request =
+        ListFlowsRequest.newBuilder().setParent(parent == null ? null : parent.toString()).build();
+    return listFlows(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all flows in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   for (Flow element : flowsClient.listFlows(parent.toString()).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The agent containing the flows. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListFlowsPagedResponse listFlows(String parent) {
+    ListFlowsRequest request = ListFlowsRequest.newBuilder().setParent(parent).build();
+    return listFlows(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all flows in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   ListFlowsRequest request = ListFlowsRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   for (Flow element : flowsClient.listFlows(request).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListFlowsPagedResponse listFlows(ListFlowsRequest request) {
+    return listFlowsPagedCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all flows in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   ListFlowsRequest request = ListFlowsRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   ApiFuture&lt;ListFlowsPagedResponse&gt; future = flowsClient.listFlowsPagedCallable().futureCall(request);
+   *   // Do something
+   *   for (Flow element : future.get().iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<ListFlowsRequest, ListFlowsPagedResponse> listFlowsPagedCallable() {
+    return stub.listFlowsPagedCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all flows in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   ListFlowsRequest request = ListFlowsRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   while (true) {
+   *     ListFlowsResponse response = flowsClient.listFlowsCallable().call(request);
+   *     for (Flow element : response.getFlowsList()) {
+   *       // doThingsWith(element);
+   *     }
+   *     String nextPageToken = response.getNextPageToken();
+   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
+   *       request = request.toBuilder().setPageToken(nextPageToken).build();
+   *     } else {
+   *       break;
+   *     }
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<ListFlowsRequest, ListFlowsResponse> listFlowsCallable() {
+    return stub.listFlowsCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   FlowName name = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   Flow response = flowsClient.getFlow(name);
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the flow to get. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/flows/&lt;Flow ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Flow getFlow(FlowName name) {
+    GetFlowRequest request =
+        GetFlowRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    return getFlow(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   FlowName name = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   Flow response = flowsClient.getFlow(name.toString());
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the flow to get. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/flows/&lt;Flow ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Flow getFlow(String name) {
+    GetFlowRequest request = GetFlowRequest.newBuilder().setName(name).build();
+    return getFlow(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   FlowName name = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   GetFlowRequest request = GetFlowRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   Flow response = flowsClient.getFlow(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Flow getFlow(GetFlowRequest request) {
+    return getFlowCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   FlowName name = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   GetFlowRequest request = GetFlowRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;Flow&gt; future = flowsClient.getFlowCallable().futureCall(request);
+   *   // Do something
+   *   Flow response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<GetFlowRequest, Flow> getFlowCallable() {
+    return stub.getFlowCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   Flow flow = Flow.newBuilder().build();
+   *   FieldMask updateMask = FieldMask.newBuilder().build();
+   *   Flow response = flowsClient.updateFlow(flow, updateMask);
+   * }
+   * </code></pre>
+   *
+   * @param flow Required. The flow to update.
+   * @param updateMask Required. The mask to control which fields get updated. If `update_mask` is
+   *     not specified, an error will be returned.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Flow updateFlow(Flow flow, FieldMask updateMask) {
+    UpdateFlowRequest request =
+        UpdateFlowRequest.newBuilder().setFlow(flow).setUpdateMask(updateMask).build();
+    return updateFlow(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   Flow flow = Flow.newBuilder().build();
+   *   FieldMask updateMask = FieldMask.newBuilder().build();
+   *   UpdateFlowRequest request = UpdateFlowRequest.newBuilder()
+   *     .setFlow(flow)
+   *     .setUpdateMask(updateMask)
+   *     .build();
+   *   Flow response = flowsClient.updateFlow(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Flow updateFlow(UpdateFlowRequest request) {
+    return updateFlowCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   Flow flow = Flow.newBuilder().build();
+   *   FieldMask updateMask = FieldMask.newBuilder().build();
+   *   UpdateFlowRequest request = UpdateFlowRequest.newBuilder()
+   *     .setFlow(flow)
+   *     .setUpdateMask(updateMask)
+   *     .build();
+   *   ApiFuture&lt;Flow&gt; future = flowsClient.updateFlowCallable().futureCall(request);
+   *   // Do something
+   *   Flow response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<UpdateFlowRequest, Flow> updateFlowCallable() {
+    return stub.updateFlowCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Trains the specified flow. Note that only the flow in 'draft' environment is trained.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   FlowName name = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   flowsClient.trainFlowAsync(name).get();
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The flow to train. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/flows/&lt;Flow ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public final OperationFuture<Empty, Struct> trainFlowAsync(FlowName name) {
+    TrainFlowRequest request =
+        TrainFlowRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    return trainFlowAsync(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Trains the specified flow. Note that only the flow in 'draft' environment is trained.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   FlowName name = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   flowsClient.trainFlowAsync(name.toString()).get();
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The flow to train. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/flows/&lt;Flow ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public final OperationFuture<Empty, Struct> trainFlowAsync(String name) {
+    TrainFlowRequest request = TrainFlowRequest.newBuilder().setName(name).build();
+    return trainFlowAsync(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Trains the specified flow. Note that only the flow in 'draft' environment is trained.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   FlowName name = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   TrainFlowRequest request = TrainFlowRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   flowsClient.trainFlowAsync(request).get();
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public final OperationFuture<Empty, Struct> trainFlowAsync(TrainFlowRequest request) {
+    return trainFlowOperationCallable().futureCall(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Trains the specified flow. Note that only the flow in 'draft' environment is trained.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   FlowName name = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   TrainFlowRequest request = TrainFlowRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   OperationFuture&lt;Empty, Struct&gt; future = flowsClient.trainFlowOperationCallable().futureCall(request);
+   *   // Do something
+   *   future.get();
+   * }
+   * </code></pre>
+   */
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public final OperationCallable<TrainFlowRequest, Empty, Struct> trainFlowOperationCallable() {
+    return stub.trainFlowOperationCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Trains the specified flow. Note that only the flow in 'draft' environment is trained.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (FlowsClient flowsClient = FlowsClient.create()) {
+   *   FlowName name = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   TrainFlowRequest request = TrainFlowRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;Operation&gt; future = flowsClient.trainFlowCallable().futureCall(request);
+   *   // Do something
+   *   future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<TrainFlowRequest, Operation> trainFlowCallable() {
+    return stub.trainFlowCallable();
+  }
+
+  @Override
+  public final void close() {
+    stub.close();
+  }
+
+  @Override
+  public void shutdown() {
+    stub.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return stub.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return stub.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    stub.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return stub.awaitTermination(duration, unit);
+  }
+
+  public static class ListFlowsPagedResponse
+      extends AbstractPagedListResponse<
+          ListFlowsRequest, ListFlowsResponse, Flow, ListFlowsPage, ListFlowsFixedSizeCollection> {
+
+    public static ApiFuture<ListFlowsPagedResponse> createAsync(
+        PageContext<ListFlowsRequest, ListFlowsResponse, Flow> context,
+        ApiFuture<ListFlowsResponse> futureResponse) {
+      ApiFuture<ListFlowsPage> futurePage =
+          ListFlowsPage.createEmptyPage().createPageAsync(context, futureResponse);
+      return ApiFutures.transform(
+          futurePage,
+          new ApiFunction<ListFlowsPage, ListFlowsPagedResponse>() {
+            @Override
+            public ListFlowsPagedResponse apply(ListFlowsPage input) {
+              return new ListFlowsPagedResponse(input);
+            }
+          },
+          MoreExecutors.directExecutor());
+    }
+
+    private ListFlowsPagedResponse(ListFlowsPage page) {
+      super(page, ListFlowsFixedSizeCollection.createEmptyCollection());
+    }
+  }
+
+  public static class ListFlowsPage
+      extends AbstractPage<ListFlowsRequest, ListFlowsResponse, Flow, ListFlowsPage> {
+
+    private ListFlowsPage(
+        PageContext<ListFlowsRequest, ListFlowsResponse, Flow> context,
+        ListFlowsResponse response) {
+      super(context, response);
+    }
+
+    private static ListFlowsPage createEmptyPage() {
+      return new ListFlowsPage(null, null);
+    }
+
+    @Override
+    protected ListFlowsPage createPage(
+        PageContext<ListFlowsRequest, ListFlowsResponse, Flow> context,
+        ListFlowsResponse response) {
+      return new ListFlowsPage(context, response);
+    }
+
+    @Override
+    public ApiFuture<ListFlowsPage> createPageAsync(
+        PageContext<ListFlowsRequest, ListFlowsResponse, Flow> context,
+        ApiFuture<ListFlowsResponse> futureResponse) {
+      return super.createPageAsync(context, futureResponse);
+    }
+  }
+
+  public static class ListFlowsFixedSizeCollection
+      extends AbstractFixedSizeCollection<
+          ListFlowsRequest, ListFlowsResponse, Flow, ListFlowsPage, ListFlowsFixedSizeCollection> {
+
+    private ListFlowsFixedSizeCollection(List<ListFlowsPage> pages, int collectionSize) {
+      super(pages, collectionSize);
+    }
+
+    private static ListFlowsFixedSizeCollection createEmptyCollection() {
+      return new ListFlowsFixedSizeCollection(null, 0);
+    }
+
+    @Override
+    protected ListFlowsFixedSizeCollection createCollection(
+        List<ListFlowsPage> pages, int collectionSize) {
+      return new ListFlowsFixedSizeCollection(pages, collectionSize);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowsSettings.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowsSettings.java
new file mode 100644
index 000000000..2a321216d
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowsSettings.java
@@ -0,0 +1,252 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.FlowsClient.ListFlowsPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientSettings;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.FlowsStubSettings;
+import com.google.longrunning.Operation;
+import com.google.protobuf.Empty;
+import com.google.protobuf.Struct;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Settings class to configure an instance of {@link FlowsClient}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of createFlow to 30 seconds:
+ *
+ * <pre>
+ * <code>
+ * FlowsSettings.Builder flowsSettingsBuilder =
+ *     FlowsSettings.newBuilder();
+ * flowsSettingsBuilder
+ *     .createFlowSettings()
+ *     .setRetrySettings(
+ *         flowsSettingsBuilder.createFlowSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * FlowsSettings flowsSettings = flowsSettingsBuilder.build();
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class FlowsSettings extends ClientSettings<FlowsSettings> {
+  /** Returns the object with the settings used for calls to createFlow. */
+  public UnaryCallSettings<CreateFlowRequest, Flow> createFlowSettings() {
+    return ((FlowsStubSettings) getStubSettings()).createFlowSettings();
+  }
+
+  /** Returns the object with the settings used for calls to deleteFlow. */
+  public UnaryCallSettings<DeleteFlowRequest, Empty> deleteFlowSettings() {
+    return ((FlowsStubSettings) getStubSettings()).deleteFlowSettings();
+  }
+
+  /** Returns the object with the settings used for calls to listFlows. */
+  public PagedCallSettings<ListFlowsRequest, ListFlowsResponse, ListFlowsPagedResponse>
+      listFlowsSettings() {
+    return ((FlowsStubSettings) getStubSettings()).listFlowsSettings();
+  }
+
+  /** Returns the object with the settings used for calls to getFlow. */
+  public UnaryCallSettings<GetFlowRequest, Flow> getFlowSettings() {
+    return ((FlowsStubSettings) getStubSettings()).getFlowSettings();
+  }
+
+  /** Returns the object with the settings used for calls to updateFlow. */
+  public UnaryCallSettings<UpdateFlowRequest, Flow> updateFlowSettings() {
+    return ((FlowsStubSettings) getStubSettings()).updateFlowSettings();
+  }
+
+  /** Returns the object with the settings used for calls to trainFlow. */
+  public UnaryCallSettings<TrainFlowRequest, Operation> trainFlowSettings() {
+    return ((FlowsStubSettings) getStubSettings()).trainFlowSettings();
+  }
+
+  /** Returns the object with the settings used for calls to trainFlow. */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public OperationCallSettings<TrainFlowRequest, Empty, Struct> trainFlowOperationSettings() {
+    return ((FlowsStubSettings) getStubSettings()).trainFlowOperationSettings();
+  }
+
+  public static final FlowsSettings create(FlowsStubSettings stub) throws IOException {
+    return new FlowsSettings.Builder(stub.toBuilder()).build();
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return FlowsStubSettings.defaultExecutorProviderBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return FlowsStubSettings.getDefaultEndpoint();
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return FlowsStubSettings.getDefaultServiceScopes();
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return FlowsStubSettings.defaultCredentialsProviderBuilder();
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return FlowsStubSettings.defaultGrpcTransportProviderBuilder();
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return FlowsStubSettings.defaultTransportChannelProvider();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return FlowsStubSettings.defaultApiClientHeaderProviderBuilder();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected FlowsSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+  }
+
+  /** Builder for FlowsSettings. */
+  public static class Builder extends ClientSettings.Builder<FlowsSettings, Builder> {
+    protected Builder() throws IOException {
+      this((ClientContext) null);
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(FlowsStubSettings.newBuilder(clientContext));
+    }
+
+    private static Builder createDefault() {
+      return new Builder(FlowsStubSettings.newBuilder());
+    }
+
+    protected Builder(FlowsSettings settings) {
+      super(settings.getStubSettings().toBuilder());
+    }
+
+    protected Builder(FlowsStubSettings.Builder stubSettings) {
+      super(stubSettings);
+    }
+
+    public FlowsStubSettings.Builder getStubSettingsBuilder() {
+      return ((FlowsStubSettings.Builder) getStubSettings());
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(
+          getStubSettingsBuilder().unaryMethodSettingsBuilders(), settingsUpdater);
+      return this;
+    }
+
+    /** Returns the builder for the settings used for calls to createFlow. */
+    public UnaryCallSettings.Builder<CreateFlowRequest, Flow> createFlowSettings() {
+      return getStubSettingsBuilder().createFlowSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to deleteFlow. */
+    public UnaryCallSettings.Builder<DeleteFlowRequest, Empty> deleteFlowSettings() {
+      return getStubSettingsBuilder().deleteFlowSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to listFlows. */
+    public PagedCallSettings.Builder<ListFlowsRequest, ListFlowsResponse, ListFlowsPagedResponse>
+        listFlowsSettings() {
+      return getStubSettingsBuilder().listFlowsSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to getFlow. */
+    public UnaryCallSettings.Builder<GetFlowRequest, Flow> getFlowSettings() {
+      return getStubSettingsBuilder().getFlowSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to updateFlow. */
+    public UnaryCallSettings.Builder<UpdateFlowRequest, Flow> updateFlowSettings() {
+      return getStubSettingsBuilder().updateFlowSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to trainFlow. */
+    public UnaryCallSettings.Builder<TrainFlowRequest, Operation> trainFlowSettings() {
+      return getStubSettingsBuilder().trainFlowSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to trainFlow. */
+    @BetaApi(
+        "The surface for long-running operations is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<TrainFlowRequest, Empty, Struct>
+        trainFlowOperationSettings() {
+      return getStubSettingsBuilder().trainFlowOperationSettings();
+    }
+
+    @Override
+    public FlowsSettings build() throws IOException {
+      return new FlowsSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentsClient.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentsClient.java
new file mode 100644
index 000000000..a76007393
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentsClient.java
@@ -0,0 +1,749 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.ApiFutures;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.paging.AbstractFixedSizeCollection;
+import com.google.api.gax.paging.AbstractPage;
+import com.google.api.gax.paging.AbstractPagedListResponse;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.IntentsStub;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.IntentsStubSettings;
+import com.google.common.util.concurrent.MoreExecutors;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import java.io.IOException;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND SERVICE
+/**
+ * Service Description: Service for managing [Intents][google.cloud.dialogflow.cx.v3beta1.Intent].
+ *
+ * <p>This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * <pre>
+ * <code>
+ * try (IntentsClient intentsClient = IntentsClient.create()) {
+ *   IntentName name = IntentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[INTENT]");
+ *   Intent response = intentsClient.getIntent(name);
+ * }
+ * </code>
+ * </pre>
+ *
+ * <p>Note: close() needs to be called on the intentsClient object to clean up resources such as
+ * threads. In the example above, try-with-resources is used, which automatically calls close().
+ *
+ * <p>The surface of this class includes several types of Java methods for each of the API's
+ * methods:
+ *
+ * <ol>
+ *   <li>A "flattened" method. With this type of method, the fields of the request type have been
+ *       converted into function parameters. It may be the case that not all fields are available as
+ *       parameters, and not every API method will have a flattened method entry point.
+ *   <li>A "request object" method. This type of method only takes one parameter, a request object,
+ *       which must be constructed before the call. Not every API method will have a request object
+ *       method.
+ *   <li>A "callable" method. This type of method takes no parameters and returns an immutable API
+ *       callable object, which can be used to initiate calls to the service.
+ * </ol>
+ *
+ * <p>See the individual methods for example code.
+ *
+ * <p>Many parameters require resource names to be formatted in a particular way. To assist with
+ * these names, this class includes a format method for each type of name, and additionally a parse
+ * method to extract the individual identifiers contained within names that are returned.
+ *
+ * <p>This class can be customized by passing in a custom instance of IntentsSettings to create().
+ * For example:
+ *
+ * <p>To customize credentials:
+ *
+ * <pre>
+ * <code>
+ * IntentsSettings intentsSettings =
+ *     IntentsSettings.newBuilder()
+ *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
+ *         .build();
+ * IntentsClient intentsClient =
+ *     IntentsClient.create(intentsSettings);
+ * </code>
+ * </pre>
+ *
+ * To customize the endpoint:
+ *
+ * <pre>
+ * <code>
+ * IntentsSettings intentsSettings =
+ *     IntentsSettings.newBuilder().setEndpoint(myEndpoint).build();
+ * IntentsClient intentsClient =
+ *     IntentsClient.create(intentsSettings);
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class IntentsClient implements BackgroundResource {
+  private final IntentsSettings settings;
+  private final IntentsStub stub;
+
+  /** Constructs an instance of IntentsClient with default settings. */
+  public static final IntentsClient create() throws IOException {
+    return create(IntentsSettings.newBuilder().build());
+  }
+
+  /**
+   * Constructs an instance of IntentsClient, using the given settings. The channels are created
+   * based on the settings passed in, or defaults for any settings that are not set.
+   */
+  public static final IntentsClient create(IntentsSettings settings) throws IOException {
+    return new IntentsClient(settings);
+  }
+
+  /**
+   * Constructs an instance of IntentsClient, using the given stub for making calls. This is for
+   * advanced usage - prefer to use IntentsSettings}.
+   */
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public static final IntentsClient create(IntentsStub stub) {
+    return new IntentsClient(stub);
+  }
+
+  /**
+   * Constructs an instance of IntentsClient, using the given settings. This is protected so that it
+   * is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected IntentsClient(IntentsSettings settings) throws IOException {
+    this.settings = settings;
+    this.stub = ((IntentsStubSettings) settings.getStubSettings()).createStub();
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  protected IntentsClient(IntentsStub stub) {
+    this.settings = null;
+    this.stub = stub;
+  }
+
+  public final IntentsSettings getSettings() {
+    return settings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public IntentsStub getStub() {
+    return stub;
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all intents in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (IntentsClient intentsClient = IntentsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   for (Intent element : intentsClient.listIntents(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The agent to list all intents for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListIntentsPagedResponse listIntents(AgentName parent) {
+    ListIntentsRequest request =
+        ListIntentsRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .build();
+    return listIntents(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all intents in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (IntentsClient intentsClient = IntentsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   for (Intent element : intentsClient.listIntents(parent.toString()).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The agent to list all intents for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListIntentsPagedResponse listIntents(String parent) {
+    ListIntentsRequest request = ListIntentsRequest.newBuilder().setParent(parent).build();
+    return listIntents(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all intents in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (IntentsClient intentsClient = IntentsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   ListIntentsRequest request = ListIntentsRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   for (Intent element : intentsClient.listIntents(request).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListIntentsPagedResponse listIntents(ListIntentsRequest request) {
+    return listIntentsPagedCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all intents in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (IntentsClient intentsClient = IntentsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   ListIntentsRequest request = ListIntentsRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   ApiFuture&lt;ListIntentsPagedResponse&gt; future = intentsClient.listIntentsPagedCallable().futureCall(request);
+   *   // Do something
+   *   for (Intent element : future.get().iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<ListIntentsRequest, ListIntentsPagedResponse>
+      listIntentsPagedCallable() {
+    return stub.listIntentsPagedCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all intents in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (IntentsClient intentsClient = IntentsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   ListIntentsRequest request = ListIntentsRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   while (true) {
+   *     ListIntentsResponse response = intentsClient.listIntentsCallable().call(request);
+   *     for (Intent element : response.getIntentsList()) {
+   *       // doThingsWith(element);
+   *     }
+   *     String nextPageToken = response.getNextPageToken();
+   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
+   *       request = request.toBuilder().setPageToken(nextPageToken).build();
+   *     } else {
+   *       break;
+   *     }
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<ListIntentsRequest, ListIntentsResponse> listIntentsCallable() {
+    return stub.listIntentsCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified intent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (IntentsClient intentsClient = IntentsClient.create()) {
+   *   IntentName name = IntentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[INTENT]");
+   *   Intent response = intentsClient.getIntent(name);
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the intent. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/intents/&lt;Intent ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Intent getIntent(IntentName name) {
+    GetIntentRequest request =
+        GetIntentRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    return getIntent(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified intent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (IntentsClient intentsClient = IntentsClient.create()) {
+   *   IntentName name = IntentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[INTENT]");
+   *   Intent response = intentsClient.getIntent(name.toString());
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the intent. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/intents/&lt;Intent ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Intent getIntent(String name) {
+    GetIntentRequest request = GetIntentRequest.newBuilder().setName(name).build();
+    return getIntent(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified intent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (IntentsClient intentsClient = IntentsClient.create()) {
+   *   IntentName name = IntentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[INTENT]");
+   *   GetIntentRequest request = GetIntentRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   Intent response = intentsClient.getIntent(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Intent getIntent(GetIntentRequest request) {
+    return getIntentCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified intent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (IntentsClient intentsClient = IntentsClient.create()) {
+   *   IntentName name = IntentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[INTENT]");
+   *   GetIntentRequest request = GetIntentRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;Intent&gt; future = intentsClient.getIntentCallable().futureCall(request);
+   *   // Do something
+   *   Intent response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<GetIntentRequest, Intent> getIntentCallable() {
+    return stub.getIntentCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates an intent in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (IntentsClient intentsClient = IntentsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   Intent intent = Intent.newBuilder().build();
+   *   Intent response = intentsClient.createIntent(parent, intent);
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The agent to create an intent for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @param intent Required. The intent to create.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Intent createIntent(AgentName parent, Intent intent) {
+    CreateIntentRequest request =
+        CreateIntentRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .setIntent(intent)
+            .build();
+    return createIntent(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates an intent in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (IntentsClient intentsClient = IntentsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   Intent intent = Intent.newBuilder().build();
+   *   Intent response = intentsClient.createIntent(parent.toString(), intent);
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The agent to create an intent for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @param intent Required. The intent to create.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Intent createIntent(String parent, Intent intent) {
+    CreateIntentRequest request =
+        CreateIntentRequest.newBuilder().setParent(parent).setIntent(intent).build();
+    return createIntent(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates an intent in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (IntentsClient intentsClient = IntentsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   Intent intent = Intent.newBuilder().build();
+   *   CreateIntentRequest request = CreateIntentRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .setIntent(intent)
+   *     .build();
+   *   Intent response = intentsClient.createIntent(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Intent createIntent(CreateIntentRequest request) {
+    return createIntentCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates an intent in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (IntentsClient intentsClient = IntentsClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   Intent intent = Intent.newBuilder().build();
+   *   CreateIntentRequest request = CreateIntentRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .setIntent(intent)
+   *     .build();
+   *   ApiFuture&lt;Intent&gt; future = intentsClient.createIntentCallable().futureCall(request);
+   *   // Do something
+   *   Intent response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<CreateIntentRequest, Intent> createIntentCallable() {
+    return stub.createIntentCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified intent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (IntentsClient intentsClient = IntentsClient.create()) {
+   *   Intent intent = Intent.newBuilder().build();
+   *   FieldMask updateMask = FieldMask.newBuilder().build();
+   *   Intent response = intentsClient.updateIntent(intent, updateMask);
+   * }
+   * </code></pre>
+   *
+   * @param intent Required. The intent to update.
+   * @param updateMask The mask to control which fields get updated. If the mask is not present, all
+   *     fields will be updated.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Intent updateIntent(Intent intent, FieldMask updateMask) {
+    UpdateIntentRequest request =
+        UpdateIntentRequest.newBuilder().setIntent(intent).setUpdateMask(updateMask).build();
+    return updateIntent(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified intent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (IntentsClient intentsClient = IntentsClient.create()) {
+   *   Intent intent = Intent.newBuilder().build();
+   *   UpdateIntentRequest request = UpdateIntentRequest.newBuilder()
+   *     .setIntent(intent)
+   *     .build();
+   *   Intent response = intentsClient.updateIntent(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Intent updateIntent(UpdateIntentRequest request) {
+    return updateIntentCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified intent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (IntentsClient intentsClient = IntentsClient.create()) {
+   *   Intent intent = Intent.newBuilder().build();
+   *   UpdateIntentRequest request = UpdateIntentRequest.newBuilder()
+   *     .setIntent(intent)
+   *     .build();
+   *   ApiFuture&lt;Intent&gt; future = intentsClient.updateIntentCallable().futureCall(request);
+   *   // Do something
+   *   Intent response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<UpdateIntentRequest, Intent> updateIntentCallable() {
+    return stub.updateIntentCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified intent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (IntentsClient intentsClient = IntentsClient.create()) {
+   *   IntentName name = IntentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[INTENT]");
+   *   intentsClient.deleteIntent(name);
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the intent to delete. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/intents/&lt;Intent ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteIntent(IntentName name) {
+    DeleteIntentRequest request =
+        DeleteIntentRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    deleteIntent(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified intent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (IntentsClient intentsClient = IntentsClient.create()) {
+   *   IntentName name = IntentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[INTENT]");
+   *   intentsClient.deleteIntent(name.toString());
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the intent to delete. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/intents/&lt;Intent ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteIntent(String name) {
+    DeleteIntentRequest request = DeleteIntentRequest.newBuilder().setName(name).build();
+    deleteIntent(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified intent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (IntentsClient intentsClient = IntentsClient.create()) {
+   *   IntentName name = IntentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[INTENT]");
+   *   DeleteIntentRequest request = DeleteIntentRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   intentsClient.deleteIntent(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteIntent(DeleteIntentRequest request) {
+    deleteIntentCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified intent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (IntentsClient intentsClient = IntentsClient.create()) {
+   *   IntentName name = IntentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[INTENT]");
+   *   DeleteIntentRequest request = DeleteIntentRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;Void&gt; future = intentsClient.deleteIntentCallable().futureCall(request);
+   *   // Do something
+   *   future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<DeleteIntentRequest, Empty> deleteIntentCallable() {
+    return stub.deleteIntentCallable();
+  }
+
+  @Override
+  public final void close() {
+    stub.close();
+  }
+
+  @Override
+  public void shutdown() {
+    stub.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return stub.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return stub.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    stub.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return stub.awaitTermination(duration, unit);
+  }
+
+  public static class ListIntentsPagedResponse
+      extends AbstractPagedListResponse<
+          ListIntentsRequest,
+          ListIntentsResponse,
+          Intent,
+          ListIntentsPage,
+          ListIntentsFixedSizeCollection> {
+
+    public static ApiFuture<ListIntentsPagedResponse> createAsync(
+        PageContext<ListIntentsRequest, ListIntentsResponse, Intent> context,
+        ApiFuture<ListIntentsResponse> futureResponse) {
+      ApiFuture<ListIntentsPage> futurePage =
+          ListIntentsPage.createEmptyPage().createPageAsync(context, futureResponse);
+      return ApiFutures.transform(
+          futurePage,
+          new ApiFunction<ListIntentsPage, ListIntentsPagedResponse>() {
+            @Override
+            public ListIntentsPagedResponse apply(ListIntentsPage input) {
+              return new ListIntentsPagedResponse(input);
+            }
+          },
+          MoreExecutors.directExecutor());
+    }
+
+    private ListIntentsPagedResponse(ListIntentsPage page) {
+      super(page, ListIntentsFixedSizeCollection.createEmptyCollection());
+    }
+  }
+
+  public static class ListIntentsPage
+      extends AbstractPage<ListIntentsRequest, ListIntentsResponse, Intent, ListIntentsPage> {
+
+    private ListIntentsPage(
+        PageContext<ListIntentsRequest, ListIntentsResponse, Intent> context,
+        ListIntentsResponse response) {
+      super(context, response);
+    }
+
+    private static ListIntentsPage createEmptyPage() {
+      return new ListIntentsPage(null, null);
+    }
+
+    @Override
+    protected ListIntentsPage createPage(
+        PageContext<ListIntentsRequest, ListIntentsResponse, Intent> context,
+        ListIntentsResponse response) {
+      return new ListIntentsPage(context, response);
+    }
+
+    @Override
+    public ApiFuture<ListIntentsPage> createPageAsync(
+        PageContext<ListIntentsRequest, ListIntentsResponse, Intent> context,
+        ApiFuture<ListIntentsResponse> futureResponse) {
+      return super.createPageAsync(context, futureResponse);
+    }
+  }
+
+  public static class ListIntentsFixedSizeCollection
+      extends AbstractFixedSizeCollection<
+          ListIntentsRequest,
+          ListIntentsResponse,
+          Intent,
+          ListIntentsPage,
+          ListIntentsFixedSizeCollection> {
+
+    private ListIntentsFixedSizeCollection(List<ListIntentsPage> pages, int collectionSize) {
+      super(pages, collectionSize);
+    }
+
+    private static ListIntentsFixedSizeCollection createEmptyCollection() {
+      return new ListIntentsFixedSizeCollection(null, 0);
+    }
+
+    @Override
+    protected ListIntentsFixedSizeCollection createCollection(
+        List<ListIntentsPage> pages, int collectionSize) {
+      return new ListIntentsFixedSizeCollection(pages, collectionSize);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentsSettings.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentsSettings.java
new file mode 100644
index 000000000..298bf5345
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentsSettings.java
@@ -0,0 +1,225 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.IntentsClient.ListIntentsPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientSettings;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.IntentsStubSettings;
+import com.google.protobuf.Empty;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Settings class to configure an instance of {@link IntentsClient}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getIntent to 30 seconds:
+ *
+ * <pre>
+ * <code>
+ * IntentsSettings.Builder intentsSettingsBuilder =
+ *     IntentsSettings.newBuilder();
+ * intentsSettingsBuilder
+ *     .getIntentSettings()
+ *     .setRetrySettings(
+ *         intentsSettingsBuilder.getIntentSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * IntentsSettings intentsSettings = intentsSettingsBuilder.build();
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class IntentsSettings extends ClientSettings<IntentsSettings> {
+  /** Returns the object with the settings used for calls to listIntents. */
+  public PagedCallSettings<ListIntentsRequest, ListIntentsResponse, ListIntentsPagedResponse>
+      listIntentsSettings() {
+    return ((IntentsStubSettings) getStubSettings()).listIntentsSettings();
+  }
+
+  /** Returns the object with the settings used for calls to getIntent. */
+  public UnaryCallSettings<GetIntentRequest, Intent> getIntentSettings() {
+    return ((IntentsStubSettings) getStubSettings()).getIntentSettings();
+  }
+
+  /** Returns the object with the settings used for calls to createIntent. */
+  public UnaryCallSettings<CreateIntentRequest, Intent> createIntentSettings() {
+    return ((IntentsStubSettings) getStubSettings()).createIntentSettings();
+  }
+
+  /** Returns the object with the settings used for calls to updateIntent. */
+  public UnaryCallSettings<UpdateIntentRequest, Intent> updateIntentSettings() {
+    return ((IntentsStubSettings) getStubSettings()).updateIntentSettings();
+  }
+
+  /** Returns the object with the settings used for calls to deleteIntent. */
+  public UnaryCallSettings<DeleteIntentRequest, Empty> deleteIntentSettings() {
+    return ((IntentsStubSettings) getStubSettings()).deleteIntentSettings();
+  }
+
+  public static final IntentsSettings create(IntentsStubSettings stub) throws IOException {
+    return new IntentsSettings.Builder(stub.toBuilder()).build();
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return IntentsStubSettings.defaultExecutorProviderBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return IntentsStubSettings.getDefaultEndpoint();
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return IntentsStubSettings.getDefaultServiceScopes();
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return IntentsStubSettings.defaultCredentialsProviderBuilder();
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return IntentsStubSettings.defaultGrpcTransportProviderBuilder();
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return IntentsStubSettings.defaultTransportChannelProvider();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return IntentsStubSettings.defaultApiClientHeaderProviderBuilder();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected IntentsSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+  }
+
+  /** Builder for IntentsSettings. */
+  public static class Builder extends ClientSettings.Builder<IntentsSettings, Builder> {
+    protected Builder() throws IOException {
+      this((ClientContext) null);
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(IntentsStubSettings.newBuilder(clientContext));
+    }
+
+    private static Builder createDefault() {
+      return new Builder(IntentsStubSettings.newBuilder());
+    }
+
+    protected Builder(IntentsSettings settings) {
+      super(settings.getStubSettings().toBuilder());
+    }
+
+    protected Builder(IntentsStubSettings.Builder stubSettings) {
+      super(stubSettings);
+    }
+
+    public IntentsStubSettings.Builder getStubSettingsBuilder() {
+      return ((IntentsStubSettings.Builder) getStubSettings());
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(
+          getStubSettingsBuilder().unaryMethodSettingsBuilders(), settingsUpdater);
+      return this;
+    }
+
+    /** Returns the builder for the settings used for calls to listIntents. */
+    public PagedCallSettings.Builder<
+            ListIntentsRequest, ListIntentsResponse, ListIntentsPagedResponse>
+        listIntentsSettings() {
+      return getStubSettingsBuilder().listIntentsSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to getIntent. */
+    public UnaryCallSettings.Builder<GetIntentRequest, Intent> getIntentSettings() {
+      return getStubSettingsBuilder().getIntentSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to createIntent. */
+    public UnaryCallSettings.Builder<CreateIntentRequest, Intent> createIntentSettings() {
+      return getStubSettingsBuilder().createIntentSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to updateIntent. */
+    public UnaryCallSettings.Builder<UpdateIntentRequest, Intent> updateIntentSettings() {
+      return getStubSettingsBuilder().updateIntentSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to deleteIntent. */
+    public UnaryCallSettings.Builder<DeleteIntentRequest, Empty> deleteIntentSettings() {
+      return getStubSettingsBuilder().deleteIntentSettings();
+    }
+
+    @Override
+    public IntentsSettings build() throws IOException {
+      return new IntentsSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PagesClient.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PagesClient.java
new file mode 100644
index 000000000..b481c31a0
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PagesClient.java
@@ -0,0 +1,742 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.ApiFutures;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.paging.AbstractFixedSizeCollection;
+import com.google.api.gax.paging.AbstractPage;
+import com.google.api.gax.paging.AbstractPagedListResponse;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.PagesStub;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.PagesStubSettings;
+import com.google.common.util.concurrent.MoreExecutors;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import java.io.IOException;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND SERVICE
+/**
+ * Service Description: Service for managing [Pages][google.cloud.dialogflow.cx.v3beta1.Page].
+ *
+ * <p>This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * <pre>
+ * <code>
+ * try (PagesClient pagesClient = PagesClient.create()) {
+ *   PageName name = PageName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[PAGE]");
+ *   Page response = pagesClient.getPage(name);
+ * }
+ * </code>
+ * </pre>
+ *
+ * <p>Note: close() needs to be called on the pagesClient object to clean up resources such as
+ * threads. In the example above, try-with-resources is used, which automatically calls close().
+ *
+ * <p>The surface of this class includes several types of Java methods for each of the API's
+ * methods:
+ *
+ * <ol>
+ *   <li>A "flattened" method. With this type of method, the fields of the request type have been
+ *       converted into function parameters. It may be the case that not all fields are available as
+ *       parameters, and not every API method will have a flattened method entry point.
+ *   <li>A "request object" method. This type of method only takes one parameter, a request object,
+ *       which must be constructed before the call. Not every API method will have a request object
+ *       method.
+ *   <li>A "callable" method. This type of method takes no parameters and returns an immutable API
+ *       callable object, which can be used to initiate calls to the service.
+ * </ol>
+ *
+ * <p>See the individual methods for example code.
+ *
+ * <p>Many parameters require resource names to be formatted in a particular way. To assist with
+ * these names, this class includes a format method for each type of name, and additionally a parse
+ * method to extract the individual identifiers contained within names that are returned.
+ *
+ * <p>This class can be customized by passing in a custom instance of PagesSettings to create(). For
+ * example:
+ *
+ * <p>To customize credentials:
+ *
+ * <pre>
+ * <code>
+ * PagesSettings pagesSettings =
+ *     PagesSettings.newBuilder()
+ *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
+ *         .build();
+ * PagesClient pagesClient =
+ *     PagesClient.create(pagesSettings);
+ * </code>
+ * </pre>
+ *
+ * To customize the endpoint:
+ *
+ * <pre>
+ * <code>
+ * PagesSettings pagesSettings =
+ *     PagesSettings.newBuilder().setEndpoint(myEndpoint).build();
+ * PagesClient pagesClient =
+ *     PagesClient.create(pagesSettings);
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class PagesClient implements BackgroundResource {
+  private final PagesSettings settings;
+  private final PagesStub stub;
+
+  /** Constructs an instance of PagesClient with default settings. */
+  public static final PagesClient create() throws IOException {
+    return create(PagesSettings.newBuilder().build());
+  }
+
+  /**
+   * Constructs an instance of PagesClient, using the given settings. The channels are created based
+   * on the settings passed in, or defaults for any settings that are not set.
+   */
+  public static final PagesClient create(PagesSettings settings) throws IOException {
+    return new PagesClient(settings);
+  }
+
+  /**
+   * Constructs an instance of PagesClient, using the given stub for making calls. This is for
+   * advanced usage - prefer to use PagesSettings}.
+   */
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public static final PagesClient create(PagesStub stub) {
+    return new PagesClient(stub);
+  }
+
+  /**
+   * Constructs an instance of PagesClient, using the given settings. This is protected so that it
+   * is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected PagesClient(PagesSettings settings) throws IOException {
+    this.settings = settings;
+    this.stub = ((PagesStubSettings) settings.getStubSettings()).createStub();
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  protected PagesClient(PagesStub stub) {
+    this.settings = null;
+    this.stub = stub;
+  }
+
+  public final PagesSettings getSettings() {
+    return settings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public PagesStub getStub() {
+    return stub;
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all pages in the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (PagesClient pagesClient = PagesClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   for (Page element : pagesClient.listPages(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The flow to list all pages for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/flows/&lt;Flow ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListPagesPagedResponse listPages(FlowName parent) {
+    ListPagesRequest request =
+        ListPagesRequest.newBuilder().setParent(parent == null ? null : parent.toString()).build();
+    return listPages(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all pages in the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (PagesClient pagesClient = PagesClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   for (Page element : pagesClient.listPages(parent.toString()).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The flow to list all pages for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/flows/&lt;Flow ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListPagesPagedResponse listPages(String parent) {
+    ListPagesRequest request = ListPagesRequest.newBuilder().setParent(parent).build();
+    return listPages(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all pages in the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (PagesClient pagesClient = PagesClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   ListPagesRequest request = ListPagesRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   for (Page element : pagesClient.listPages(request).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListPagesPagedResponse listPages(ListPagesRequest request) {
+    return listPagesPagedCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all pages in the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (PagesClient pagesClient = PagesClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   ListPagesRequest request = ListPagesRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   ApiFuture&lt;ListPagesPagedResponse&gt; future = pagesClient.listPagesPagedCallable().futureCall(request);
+   *   // Do something
+   *   for (Page element : future.get().iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<ListPagesRequest, ListPagesPagedResponse> listPagesPagedCallable() {
+    return stub.listPagesPagedCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all pages in the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (PagesClient pagesClient = PagesClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   ListPagesRequest request = ListPagesRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   while (true) {
+   *     ListPagesResponse response = pagesClient.listPagesCallable().call(request);
+   *     for (Page element : response.getPagesList()) {
+   *       // doThingsWith(element);
+   *     }
+   *     String nextPageToken = response.getNextPageToken();
+   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
+   *       request = request.toBuilder().setPageToken(nextPageToken).build();
+   *     } else {
+   *       break;
+   *     }
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<ListPagesRequest, ListPagesResponse> listPagesCallable() {
+    return stub.listPagesCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified page.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (PagesClient pagesClient = PagesClient.create()) {
+   *   PageName name = PageName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[PAGE]");
+   *   Page response = pagesClient.getPage(name);
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the page. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/flows/&lt;Flow
+   *     ID&gt;/pages/&lt;Page ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Page getPage(PageName name) {
+    GetPageRequest request =
+        GetPageRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    return getPage(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified page.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (PagesClient pagesClient = PagesClient.create()) {
+   *   PageName name = PageName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[PAGE]");
+   *   Page response = pagesClient.getPage(name.toString());
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the page. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/flows/&lt;Flow
+   *     ID&gt;/pages/&lt;Page ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Page getPage(String name) {
+    GetPageRequest request = GetPageRequest.newBuilder().setName(name).build();
+    return getPage(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified page.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (PagesClient pagesClient = PagesClient.create()) {
+   *   PageName name = PageName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[PAGE]");
+   *   GetPageRequest request = GetPageRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   Page response = pagesClient.getPage(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Page getPage(GetPageRequest request) {
+    return getPageCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified page.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (PagesClient pagesClient = PagesClient.create()) {
+   *   PageName name = PageName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[PAGE]");
+   *   GetPageRequest request = GetPageRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;Page&gt; future = pagesClient.getPageCallable().futureCall(request);
+   *   // Do something
+   *   Page response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<GetPageRequest, Page> getPageCallable() {
+    return stub.getPageCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates a page in the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (PagesClient pagesClient = PagesClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   Page page = Page.newBuilder().build();
+   *   Page response = pagesClient.createPage(parent, page);
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The flow to create a page for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/flows/&lt;Flow ID&gt;`.
+   * @param page Required. The page to create.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Page createPage(FlowName parent, Page page) {
+    CreatePageRequest request =
+        CreatePageRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .setPage(page)
+            .build();
+    return createPage(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates a page in the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (PagesClient pagesClient = PagesClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   Page page = Page.newBuilder().build();
+   *   Page response = pagesClient.createPage(parent.toString(), page);
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The flow to create a page for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/flows/&lt;Flow ID&gt;`.
+   * @param page Required. The page to create.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Page createPage(String parent, Page page) {
+    CreatePageRequest request =
+        CreatePageRequest.newBuilder().setParent(parent).setPage(page).build();
+    return createPage(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates a page in the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (PagesClient pagesClient = PagesClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   Page page = Page.newBuilder().build();
+   *   CreatePageRequest request = CreatePageRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .setPage(page)
+   *     .build();
+   *   Page response = pagesClient.createPage(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Page createPage(CreatePageRequest request) {
+    return createPageCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates a page in the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (PagesClient pagesClient = PagesClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   Page page = Page.newBuilder().build();
+   *   CreatePageRequest request = CreatePageRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .setPage(page)
+   *     .build();
+   *   ApiFuture&lt;Page&gt; future = pagesClient.createPageCallable().futureCall(request);
+   *   // Do something
+   *   Page response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<CreatePageRequest, Page> createPageCallable() {
+    return stub.createPageCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified page.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (PagesClient pagesClient = PagesClient.create()) {
+   *   Page page = Page.newBuilder().build();
+   *   FieldMask updateMask = FieldMask.newBuilder().build();
+   *   Page response = pagesClient.updatePage(page, updateMask);
+   * }
+   * </code></pre>
+   *
+   * @param page Required. The page to update.
+   * @param updateMask The mask to control which fields get updated. If the mask is not present, all
+   *     fields will be updated.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Page updatePage(Page page, FieldMask updateMask) {
+    UpdatePageRequest request =
+        UpdatePageRequest.newBuilder().setPage(page).setUpdateMask(updateMask).build();
+    return updatePage(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified page.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (PagesClient pagesClient = PagesClient.create()) {
+   *   Page page = Page.newBuilder().build();
+   *   UpdatePageRequest request = UpdatePageRequest.newBuilder()
+   *     .setPage(page)
+   *     .build();
+   *   Page response = pagesClient.updatePage(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Page updatePage(UpdatePageRequest request) {
+    return updatePageCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified page.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (PagesClient pagesClient = PagesClient.create()) {
+   *   Page page = Page.newBuilder().build();
+   *   UpdatePageRequest request = UpdatePageRequest.newBuilder()
+   *     .setPage(page)
+   *     .build();
+   *   ApiFuture&lt;Page&gt; future = pagesClient.updatePageCallable().futureCall(request);
+   *   // Do something
+   *   Page response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<UpdatePageRequest, Page> updatePageCallable() {
+    return stub.updatePageCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified page.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (PagesClient pagesClient = PagesClient.create()) {
+   *   PageName name = PageName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[PAGE]");
+   *   pagesClient.deletePage(name);
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the page to delete. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/Flows/&lt;flow
+   *     ID&gt;/pages/&lt;Page ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deletePage(PageName name) {
+    DeletePageRequest request =
+        DeletePageRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    deletePage(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified page.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (PagesClient pagesClient = PagesClient.create()) {
+   *   PageName name = PageName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[PAGE]");
+   *   pagesClient.deletePage(name.toString());
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the page to delete. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/Flows/&lt;flow
+   *     ID&gt;/pages/&lt;Page ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deletePage(String name) {
+    DeletePageRequest request = DeletePageRequest.newBuilder().setName(name).build();
+    deletePage(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified page.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (PagesClient pagesClient = PagesClient.create()) {
+   *   PageName name = PageName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[PAGE]");
+   *   DeletePageRequest request = DeletePageRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   pagesClient.deletePage(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deletePage(DeletePageRequest request) {
+    deletePageCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified page.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (PagesClient pagesClient = PagesClient.create()) {
+   *   PageName name = PageName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[PAGE]");
+   *   DeletePageRequest request = DeletePageRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;Void&gt; future = pagesClient.deletePageCallable().futureCall(request);
+   *   // Do something
+   *   future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<DeletePageRequest, Empty> deletePageCallable() {
+    return stub.deletePageCallable();
+  }
+
+  @Override
+  public final void close() {
+    stub.close();
+  }
+
+  @Override
+  public void shutdown() {
+    stub.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return stub.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return stub.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    stub.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return stub.awaitTermination(duration, unit);
+  }
+
+  public static class ListPagesPagedResponse
+      extends AbstractPagedListResponse<
+          ListPagesRequest, ListPagesResponse, Page, ListPagesPage, ListPagesFixedSizeCollection> {
+
+    public static ApiFuture<ListPagesPagedResponse> createAsync(
+        PageContext<ListPagesRequest, ListPagesResponse, Page> context,
+        ApiFuture<ListPagesResponse> futureResponse) {
+      ApiFuture<ListPagesPage> futurePage =
+          ListPagesPage.createEmptyPage().createPageAsync(context, futureResponse);
+      return ApiFutures.transform(
+          futurePage,
+          new ApiFunction<ListPagesPage, ListPagesPagedResponse>() {
+            @Override
+            public ListPagesPagedResponse apply(ListPagesPage input) {
+              return new ListPagesPagedResponse(input);
+            }
+          },
+          MoreExecutors.directExecutor());
+    }
+
+    private ListPagesPagedResponse(ListPagesPage page) {
+      super(page, ListPagesFixedSizeCollection.createEmptyCollection());
+    }
+  }
+
+  public static class ListPagesPage
+      extends AbstractPage<ListPagesRequest, ListPagesResponse, Page, ListPagesPage> {
+
+    private ListPagesPage(
+        PageContext<ListPagesRequest, ListPagesResponse, Page> context,
+        ListPagesResponse response) {
+      super(context, response);
+    }
+
+    private static ListPagesPage createEmptyPage() {
+      return new ListPagesPage(null, null);
+    }
+
+    @Override
+    protected ListPagesPage createPage(
+        PageContext<ListPagesRequest, ListPagesResponse, Page> context,
+        ListPagesResponse response) {
+      return new ListPagesPage(context, response);
+    }
+
+    @Override
+    public ApiFuture<ListPagesPage> createPageAsync(
+        PageContext<ListPagesRequest, ListPagesResponse, Page> context,
+        ApiFuture<ListPagesResponse> futureResponse) {
+      return super.createPageAsync(context, futureResponse);
+    }
+  }
+
+  public static class ListPagesFixedSizeCollection
+      extends AbstractFixedSizeCollection<
+          ListPagesRequest, ListPagesResponse, Page, ListPagesPage, ListPagesFixedSizeCollection> {
+
+    private ListPagesFixedSizeCollection(List<ListPagesPage> pages, int collectionSize) {
+      super(pages, collectionSize);
+    }
+
+    private static ListPagesFixedSizeCollection createEmptyCollection() {
+      return new ListPagesFixedSizeCollection(null, 0);
+    }
+
+    @Override
+    protected ListPagesFixedSizeCollection createCollection(
+        List<ListPagesPage> pages, int collectionSize) {
+      return new ListPagesFixedSizeCollection(pages, collectionSize);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PagesSettings.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PagesSettings.java
new file mode 100644
index 000000000..61cbe4cdc
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PagesSettings.java
@@ -0,0 +1,224 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.PagesClient.ListPagesPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientSettings;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.PagesStubSettings;
+import com.google.protobuf.Empty;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Settings class to configure an instance of {@link PagesClient}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getPage to 30 seconds:
+ *
+ * <pre>
+ * <code>
+ * PagesSettings.Builder pagesSettingsBuilder =
+ *     PagesSettings.newBuilder();
+ * pagesSettingsBuilder
+ *     .getPageSettings()
+ *     .setRetrySettings(
+ *         pagesSettingsBuilder.getPageSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * PagesSettings pagesSettings = pagesSettingsBuilder.build();
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class PagesSettings extends ClientSettings<PagesSettings> {
+  /** Returns the object with the settings used for calls to listPages. */
+  public PagedCallSettings<ListPagesRequest, ListPagesResponse, ListPagesPagedResponse>
+      listPagesSettings() {
+    return ((PagesStubSettings) getStubSettings()).listPagesSettings();
+  }
+
+  /** Returns the object with the settings used for calls to getPage. */
+  public UnaryCallSettings<GetPageRequest, Page> getPageSettings() {
+    return ((PagesStubSettings) getStubSettings()).getPageSettings();
+  }
+
+  /** Returns the object with the settings used for calls to createPage. */
+  public UnaryCallSettings<CreatePageRequest, Page> createPageSettings() {
+    return ((PagesStubSettings) getStubSettings()).createPageSettings();
+  }
+
+  /** Returns the object with the settings used for calls to updatePage. */
+  public UnaryCallSettings<UpdatePageRequest, Page> updatePageSettings() {
+    return ((PagesStubSettings) getStubSettings()).updatePageSettings();
+  }
+
+  /** Returns the object with the settings used for calls to deletePage. */
+  public UnaryCallSettings<DeletePageRequest, Empty> deletePageSettings() {
+    return ((PagesStubSettings) getStubSettings()).deletePageSettings();
+  }
+
+  public static final PagesSettings create(PagesStubSettings stub) throws IOException {
+    return new PagesSettings.Builder(stub.toBuilder()).build();
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return PagesStubSettings.defaultExecutorProviderBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return PagesStubSettings.getDefaultEndpoint();
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return PagesStubSettings.getDefaultServiceScopes();
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return PagesStubSettings.defaultCredentialsProviderBuilder();
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return PagesStubSettings.defaultGrpcTransportProviderBuilder();
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return PagesStubSettings.defaultTransportChannelProvider();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return PagesStubSettings.defaultApiClientHeaderProviderBuilder();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected PagesSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+  }
+
+  /** Builder for PagesSettings. */
+  public static class Builder extends ClientSettings.Builder<PagesSettings, Builder> {
+    protected Builder() throws IOException {
+      this((ClientContext) null);
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(PagesStubSettings.newBuilder(clientContext));
+    }
+
+    private static Builder createDefault() {
+      return new Builder(PagesStubSettings.newBuilder());
+    }
+
+    protected Builder(PagesSettings settings) {
+      super(settings.getStubSettings().toBuilder());
+    }
+
+    protected Builder(PagesStubSettings.Builder stubSettings) {
+      super(stubSettings);
+    }
+
+    public PagesStubSettings.Builder getStubSettingsBuilder() {
+      return ((PagesStubSettings.Builder) getStubSettings());
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(
+          getStubSettingsBuilder().unaryMethodSettingsBuilders(), settingsUpdater);
+      return this;
+    }
+
+    /** Returns the builder for the settings used for calls to listPages. */
+    public PagedCallSettings.Builder<ListPagesRequest, ListPagesResponse, ListPagesPagedResponse>
+        listPagesSettings() {
+      return getStubSettingsBuilder().listPagesSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to getPage. */
+    public UnaryCallSettings.Builder<GetPageRequest, Page> getPageSettings() {
+      return getStubSettingsBuilder().getPageSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to createPage. */
+    public UnaryCallSettings.Builder<CreatePageRequest, Page> createPageSettings() {
+      return getStubSettingsBuilder().createPageSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to updatePage. */
+    public UnaryCallSettings.Builder<UpdatePageRequest, Page> updatePageSettings() {
+      return getStubSettingsBuilder().updatePageSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to deletePage. */
+    public UnaryCallSettings.Builder<DeletePageRequest, Empty> deletePageSettings() {
+      return getStubSettingsBuilder().deletePageSettings();
+    }
+
+    @Override
+    public PagesSettings build() throws IOException {
+      return new PagesSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityTypesClient.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityTypesClient.java
new file mode 100644
index 000000000..9c4e4f067
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityTypesClient.java
@@ -0,0 +1,805 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.ApiFutures;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.paging.AbstractFixedSizeCollection;
+import com.google.api.gax.paging.AbstractPage;
+import com.google.api.gax.paging.AbstractPagedListResponse;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.SessionEntityTypesStub;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.SessionEntityTypesStubSettings;
+import com.google.common.util.concurrent.MoreExecutors;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import java.io.IOException;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND SERVICE
+/**
+ * Service Description: Service for managing
+ * [SessionEntityTypes][google.cloud.dialogflow.cx.v3beta1.SessionEntityType].
+ *
+ * <p>This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * <pre>
+ * <code>
+ * try (SessionEntityTypesClient sessionEntityTypesClient = SessionEntityTypesClient.create()) {
+ *   SessionEntityTypeName name = SessionEntityTypeName.ofProjectLocationAgentSessionEntityTypeName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]", "[ENTITY_TYPE]");
+ *   SessionEntityType response = sessionEntityTypesClient.getSessionEntityType(name);
+ * }
+ * </code>
+ * </pre>
+ *
+ * <p>Note: close() needs to be called on the sessionEntityTypesClient object to clean up resources
+ * such as threads. In the example above, try-with-resources is used, which automatically calls
+ * close().
+ *
+ * <p>The surface of this class includes several types of Java methods for each of the API's
+ * methods:
+ *
+ * <ol>
+ *   <li>A "flattened" method. With this type of method, the fields of the request type have been
+ *       converted into function parameters. It may be the case that not all fields are available as
+ *       parameters, and not every API method will have a flattened method entry point.
+ *   <li>A "request object" method. This type of method only takes one parameter, a request object,
+ *       which must be constructed before the call. Not every API method will have a request object
+ *       method.
+ *   <li>A "callable" method. This type of method takes no parameters and returns an immutable API
+ *       callable object, which can be used to initiate calls to the service.
+ * </ol>
+ *
+ * <p>See the individual methods for example code.
+ *
+ * <p>Many parameters require resource names to be formatted in a particular way. To assist with
+ * these names, this class includes a format method for each type of name, and additionally a parse
+ * method to extract the individual identifiers contained within names that are returned.
+ *
+ * <p>This class can be customized by passing in a custom instance of SessionEntityTypesSettings to
+ * create(). For example:
+ *
+ * <p>To customize credentials:
+ *
+ * <pre>
+ * <code>
+ * SessionEntityTypesSettings sessionEntityTypesSettings =
+ *     SessionEntityTypesSettings.newBuilder()
+ *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
+ *         .build();
+ * SessionEntityTypesClient sessionEntityTypesClient =
+ *     SessionEntityTypesClient.create(sessionEntityTypesSettings);
+ * </code>
+ * </pre>
+ *
+ * To customize the endpoint:
+ *
+ * <pre>
+ * <code>
+ * SessionEntityTypesSettings sessionEntityTypesSettings =
+ *     SessionEntityTypesSettings.newBuilder().setEndpoint(myEndpoint).build();
+ * SessionEntityTypesClient sessionEntityTypesClient =
+ *     SessionEntityTypesClient.create(sessionEntityTypesSettings);
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class SessionEntityTypesClient implements BackgroundResource {
+  private final SessionEntityTypesSettings settings;
+  private final SessionEntityTypesStub stub;
+
+  /** Constructs an instance of SessionEntityTypesClient with default settings. */
+  public static final SessionEntityTypesClient create() throws IOException {
+    return create(SessionEntityTypesSettings.newBuilder().build());
+  }
+
+  /**
+   * Constructs an instance of SessionEntityTypesClient, using the given settings. The channels are
+   * created based on the settings passed in, or defaults for any settings that are not set.
+   */
+  public static final SessionEntityTypesClient create(SessionEntityTypesSettings settings)
+      throws IOException {
+    return new SessionEntityTypesClient(settings);
+  }
+
+  /**
+   * Constructs an instance of SessionEntityTypesClient, using the given stub for making calls. This
+   * is for advanced usage - prefer to use SessionEntityTypesSettings}.
+   */
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public static final SessionEntityTypesClient create(SessionEntityTypesStub stub) {
+    return new SessionEntityTypesClient(stub);
+  }
+
+  /**
+   * Constructs an instance of SessionEntityTypesClient, using the given settings. This is protected
+   * so that it is easy to make a subclass, but otherwise, the static factory methods should be
+   * preferred.
+   */
+  protected SessionEntityTypesClient(SessionEntityTypesSettings settings) throws IOException {
+    this.settings = settings;
+    this.stub = ((SessionEntityTypesStubSettings) settings.getStubSettings()).createStub();
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  protected SessionEntityTypesClient(SessionEntityTypesStub stub) {
+    this.settings = null;
+    this.stub = stub;
+  }
+
+  public final SessionEntityTypesSettings getSettings() {
+    return settings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public SessionEntityTypesStub getStub() {
+    return stub;
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all session entity types in the specified session.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionEntityTypesClient sessionEntityTypesClient = SessionEntityTypesClient.create()) {
+   *   SessionName parent = SessionName.ofProjectLocationAgentSessionName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+   *   for (SessionEntityType element : sessionEntityTypesClient.listSessionEntityTypes(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The session to list all session entity types from. Format:
+   *     `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/sessions/&lt;Session ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListSessionEntityTypesPagedResponse listSessionEntityTypes(SessionName parent) {
+    ListSessionEntityTypesRequest request =
+        ListSessionEntityTypesRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .build();
+    return listSessionEntityTypes(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all session entity types in the specified session.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionEntityTypesClient sessionEntityTypesClient = SessionEntityTypesClient.create()) {
+   *   SessionName parent = SessionName.ofProjectLocationAgentSessionName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+   *   for (SessionEntityType element : sessionEntityTypesClient.listSessionEntityTypes(parent.toString()).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The session to list all session entity types from. Format:
+   *     `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/sessions/&lt;Session ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListSessionEntityTypesPagedResponse listSessionEntityTypes(String parent) {
+    ListSessionEntityTypesRequest request =
+        ListSessionEntityTypesRequest.newBuilder().setParent(parent).build();
+    return listSessionEntityTypes(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all session entity types in the specified session.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionEntityTypesClient sessionEntityTypesClient = SessionEntityTypesClient.create()) {
+   *   SessionName parent = SessionName.ofProjectLocationAgentSessionName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+   *   ListSessionEntityTypesRequest request = ListSessionEntityTypesRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   for (SessionEntityType element : sessionEntityTypesClient.listSessionEntityTypes(request).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListSessionEntityTypesPagedResponse listSessionEntityTypes(
+      ListSessionEntityTypesRequest request) {
+    return listSessionEntityTypesPagedCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all session entity types in the specified session.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionEntityTypesClient sessionEntityTypesClient = SessionEntityTypesClient.create()) {
+   *   SessionName parent = SessionName.ofProjectLocationAgentSessionName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+   *   ListSessionEntityTypesRequest request = ListSessionEntityTypesRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   ApiFuture&lt;ListSessionEntityTypesPagedResponse&gt; future = sessionEntityTypesClient.listSessionEntityTypesPagedCallable().futureCall(request);
+   *   // Do something
+   *   for (SessionEntityType element : future.get().iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<ListSessionEntityTypesRequest, ListSessionEntityTypesPagedResponse>
+      listSessionEntityTypesPagedCallable() {
+    return stub.listSessionEntityTypesPagedCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all session entity types in the specified session.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionEntityTypesClient sessionEntityTypesClient = SessionEntityTypesClient.create()) {
+   *   SessionName parent = SessionName.ofProjectLocationAgentSessionName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+   *   ListSessionEntityTypesRequest request = ListSessionEntityTypesRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   while (true) {
+   *     ListSessionEntityTypesResponse response = sessionEntityTypesClient.listSessionEntityTypesCallable().call(request);
+   *     for (SessionEntityType element : response.getSessionEntityTypesList()) {
+   *       // doThingsWith(element);
+   *     }
+   *     String nextPageToken = response.getNextPageToken();
+   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
+   *       request = request.toBuilder().setPageToken(nextPageToken).build();
+   *     } else {
+   *       break;
+   *     }
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<ListSessionEntityTypesRequest, ListSessionEntityTypesResponse>
+      listSessionEntityTypesCallable() {
+    return stub.listSessionEntityTypesCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified session entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionEntityTypesClient sessionEntityTypesClient = SessionEntityTypesClient.create()) {
+   *   SessionEntityTypeName name = SessionEntityTypeName.ofProjectLocationAgentSessionEntityTypeName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]", "[ENTITY_TYPE]");
+   *   SessionEntityType response = sessionEntityTypesClient.getSessionEntityType(name);
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the session entity type. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/sessions/&lt;Session
+   *     ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final SessionEntityType getSessionEntityType(SessionEntityTypeName name) {
+    GetSessionEntityTypeRequest request =
+        GetSessionEntityTypeRequest.newBuilder()
+            .setName(name == null ? null : name.toString())
+            .build();
+    return getSessionEntityType(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified session entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionEntityTypesClient sessionEntityTypesClient = SessionEntityTypesClient.create()) {
+   *   SessionEntityTypeName name = SessionEntityTypeName.ofProjectLocationAgentSessionEntityTypeName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]", "[ENTITY_TYPE]");
+   *   SessionEntityType response = sessionEntityTypesClient.getSessionEntityType(name.toString());
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the session entity type. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/sessions/&lt;Session
+   *     ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final SessionEntityType getSessionEntityType(String name) {
+    GetSessionEntityTypeRequest request =
+        GetSessionEntityTypeRequest.newBuilder().setName(name).build();
+    return getSessionEntityType(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified session entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionEntityTypesClient sessionEntityTypesClient = SessionEntityTypesClient.create()) {
+   *   SessionEntityTypeName name = SessionEntityTypeName.ofProjectLocationAgentSessionEntityTypeName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]", "[ENTITY_TYPE]");
+   *   GetSessionEntityTypeRequest request = GetSessionEntityTypeRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   SessionEntityType response = sessionEntityTypesClient.getSessionEntityType(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final SessionEntityType getSessionEntityType(GetSessionEntityTypeRequest request) {
+    return getSessionEntityTypeCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified session entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionEntityTypesClient sessionEntityTypesClient = SessionEntityTypesClient.create()) {
+   *   SessionEntityTypeName name = SessionEntityTypeName.ofProjectLocationAgentSessionEntityTypeName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]", "[ENTITY_TYPE]");
+   *   GetSessionEntityTypeRequest request = GetSessionEntityTypeRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;SessionEntityType&gt; future = sessionEntityTypesClient.getSessionEntityTypeCallable().futureCall(request);
+   *   // Do something
+   *   SessionEntityType response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<GetSessionEntityTypeRequest, SessionEntityType>
+      getSessionEntityTypeCallable() {
+    return stub.getSessionEntityTypeCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates a session entity type.
+   *
+   * <p>If the specified session entity type already exists, overrides the session entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionEntityTypesClient sessionEntityTypesClient = SessionEntityTypesClient.create()) {
+   *   SessionName parent = SessionName.ofProjectLocationAgentSessionName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+   *   SessionEntityType sessionEntityType = SessionEntityType.newBuilder().build();
+   *   SessionEntityType response = sessionEntityTypesClient.createSessionEntityType(parent, sessionEntityType);
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The session to create a session entity type for. Format:
+   *     `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/sessions/&lt;Session ID&gt;`.
+   * @param sessionEntityType Required. The session entity type to create.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final SessionEntityType createSessionEntityType(
+      SessionName parent, SessionEntityType sessionEntityType) {
+    CreateSessionEntityTypeRequest request =
+        CreateSessionEntityTypeRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .setSessionEntityType(sessionEntityType)
+            .build();
+    return createSessionEntityType(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates a session entity type.
+   *
+   * <p>If the specified session entity type already exists, overrides the session entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionEntityTypesClient sessionEntityTypesClient = SessionEntityTypesClient.create()) {
+   *   SessionName parent = SessionName.ofProjectLocationAgentSessionName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+   *   SessionEntityType sessionEntityType = SessionEntityType.newBuilder().build();
+   *   SessionEntityType response = sessionEntityTypesClient.createSessionEntityType(parent.toString(), sessionEntityType);
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The session to create a session entity type for. Format:
+   *     `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/sessions/&lt;Session ID&gt;`.
+   * @param sessionEntityType Required. The session entity type to create.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final SessionEntityType createSessionEntityType(
+      String parent, SessionEntityType sessionEntityType) {
+    CreateSessionEntityTypeRequest request =
+        CreateSessionEntityTypeRequest.newBuilder()
+            .setParent(parent)
+            .setSessionEntityType(sessionEntityType)
+            .build();
+    return createSessionEntityType(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates a session entity type.
+   *
+   * <p>If the specified session entity type already exists, overrides the session entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionEntityTypesClient sessionEntityTypesClient = SessionEntityTypesClient.create()) {
+   *   SessionName parent = SessionName.ofProjectLocationAgentSessionName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+   *   SessionEntityType sessionEntityType = SessionEntityType.newBuilder().build();
+   *   CreateSessionEntityTypeRequest request = CreateSessionEntityTypeRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .setSessionEntityType(sessionEntityType)
+   *     .build();
+   *   SessionEntityType response = sessionEntityTypesClient.createSessionEntityType(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final SessionEntityType createSessionEntityType(CreateSessionEntityTypeRequest request) {
+    return createSessionEntityTypeCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates a session entity type.
+   *
+   * <p>If the specified session entity type already exists, overrides the session entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionEntityTypesClient sessionEntityTypesClient = SessionEntityTypesClient.create()) {
+   *   SessionName parent = SessionName.ofProjectLocationAgentSessionName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+   *   SessionEntityType sessionEntityType = SessionEntityType.newBuilder().build();
+   *   CreateSessionEntityTypeRequest request = CreateSessionEntityTypeRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .setSessionEntityType(sessionEntityType)
+   *     .build();
+   *   ApiFuture&lt;SessionEntityType&gt; future = sessionEntityTypesClient.createSessionEntityTypeCallable().futureCall(request);
+   *   // Do something
+   *   SessionEntityType response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<CreateSessionEntityTypeRequest, SessionEntityType>
+      createSessionEntityTypeCallable() {
+    return stub.createSessionEntityTypeCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified session entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionEntityTypesClient sessionEntityTypesClient = SessionEntityTypesClient.create()) {
+   *   SessionEntityType sessionEntityType = SessionEntityType.newBuilder().build();
+   *   FieldMask updateMask = FieldMask.newBuilder().build();
+   *   SessionEntityType response = sessionEntityTypesClient.updateSessionEntityType(sessionEntityType, updateMask);
+   * }
+   * </code></pre>
+   *
+   * @param sessionEntityType Required. The session entity type to update. Format:
+   *     `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * @param updateMask The mask to control which fields get updated.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final SessionEntityType updateSessionEntityType(
+      SessionEntityType sessionEntityType, FieldMask updateMask) {
+    UpdateSessionEntityTypeRequest request =
+        UpdateSessionEntityTypeRequest.newBuilder()
+            .setSessionEntityType(sessionEntityType)
+            .setUpdateMask(updateMask)
+            .build();
+    return updateSessionEntityType(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified session entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionEntityTypesClient sessionEntityTypesClient = SessionEntityTypesClient.create()) {
+   *   SessionEntityType sessionEntityType = SessionEntityType.newBuilder().build();
+   *   UpdateSessionEntityTypeRequest request = UpdateSessionEntityTypeRequest.newBuilder()
+   *     .setSessionEntityType(sessionEntityType)
+   *     .build();
+   *   SessionEntityType response = sessionEntityTypesClient.updateSessionEntityType(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final SessionEntityType updateSessionEntityType(UpdateSessionEntityTypeRequest request) {
+    return updateSessionEntityTypeCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified session entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionEntityTypesClient sessionEntityTypesClient = SessionEntityTypesClient.create()) {
+   *   SessionEntityType sessionEntityType = SessionEntityType.newBuilder().build();
+   *   UpdateSessionEntityTypeRequest request = UpdateSessionEntityTypeRequest.newBuilder()
+   *     .setSessionEntityType(sessionEntityType)
+   *     .build();
+   *   ApiFuture&lt;SessionEntityType&gt; future = sessionEntityTypesClient.updateSessionEntityTypeCallable().futureCall(request);
+   *   // Do something
+   *   SessionEntityType response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<UpdateSessionEntityTypeRequest, SessionEntityType>
+      updateSessionEntityTypeCallable() {
+    return stub.updateSessionEntityTypeCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified session entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionEntityTypesClient sessionEntityTypesClient = SessionEntityTypesClient.create()) {
+   *   SessionEntityTypeName name = SessionEntityTypeName.ofProjectLocationAgentSessionEntityTypeName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]", "[ENTITY_TYPE]");
+   *   sessionEntityTypesClient.deleteSessionEntityType(name);
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the session entity type to delete. Format:
+   *     `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteSessionEntityType(SessionEntityTypeName name) {
+    DeleteSessionEntityTypeRequest request =
+        DeleteSessionEntityTypeRequest.newBuilder()
+            .setName(name == null ? null : name.toString())
+            .build();
+    deleteSessionEntityType(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified session entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionEntityTypesClient sessionEntityTypesClient = SessionEntityTypesClient.create()) {
+   *   SessionEntityTypeName name = SessionEntityTypeName.ofProjectLocationAgentSessionEntityTypeName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]", "[ENTITY_TYPE]");
+   *   sessionEntityTypesClient.deleteSessionEntityType(name.toString());
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the session entity type to delete. Format:
+   *     `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteSessionEntityType(String name) {
+    DeleteSessionEntityTypeRequest request =
+        DeleteSessionEntityTypeRequest.newBuilder().setName(name).build();
+    deleteSessionEntityType(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified session entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionEntityTypesClient sessionEntityTypesClient = SessionEntityTypesClient.create()) {
+   *   SessionEntityTypeName name = SessionEntityTypeName.ofProjectLocationAgentSessionEntityTypeName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]", "[ENTITY_TYPE]");
+   *   DeleteSessionEntityTypeRequest request = DeleteSessionEntityTypeRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   sessionEntityTypesClient.deleteSessionEntityType(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteSessionEntityType(DeleteSessionEntityTypeRequest request) {
+    deleteSessionEntityTypeCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified session entity type.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionEntityTypesClient sessionEntityTypesClient = SessionEntityTypesClient.create()) {
+   *   SessionEntityTypeName name = SessionEntityTypeName.ofProjectLocationAgentSessionEntityTypeName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]", "[ENTITY_TYPE]");
+   *   DeleteSessionEntityTypeRequest request = DeleteSessionEntityTypeRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;Void&gt; future = sessionEntityTypesClient.deleteSessionEntityTypeCallable().futureCall(request);
+   *   // Do something
+   *   future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<DeleteSessionEntityTypeRequest, Empty>
+      deleteSessionEntityTypeCallable() {
+    return stub.deleteSessionEntityTypeCallable();
+  }
+
+  @Override
+  public final void close() {
+    stub.close();
+  }
+
+  @Override
+  public void shutdown() {
+    stub.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return stub.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return stub.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    stub.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return stub.awaitTermination(duration, unit);
+  }
+
+  public static class ListSessionEntityTypesPagedResponse
+      extends AbstractPagedListResponse<
+          ListSessionEntityTypesRequest,
+          ListSessionEntityTypesResponse,
+          SessionEntityType,
+          ListSessionEntityTypesPage,
+          ListSessionEntityTypesFixedSizeCollection> {
+
+    public static ApiFuture<ListSessionEntityTypesPagedResponse> createAsync(
+        PageContext<
+                ListSessionEntityTypesRequest, ListSessionEntityTypesResponse, SessionEntityType>
+            context,
+        ApiFuture<ListSessionEntityTypesResponse> futureResponse) {
+      ApiFuture<ListSessionEntityTypesPage> futurePage =
+          ListSessionEntityTypesPage.createEmptyPage().createPageAsync(context, futureResponse);
+      return ApiFutures.transform(
+          futurePage,
+          new ApiFunction<ListSessionEntityTypesPage, ListSessionEntityTypesPagedResponse>() {
+            @Override
+            public ListSessionEntityTypesPagedResponse apply(ListSessionEntityTypesPage input) {
+              return new ListSessionEntityTypesPagedResponse(input);
+            }
+          },
+          MoreExecutors.directExecutor());
+    }
+
+    private ListSessionEntityTypesPagedResponse(ListSessionEntityTypesPage page) {
+      super(page, ListSessionEntityTypesFixedSizeCollection.createEmptyCollection());
+    }
+  }
+
+  public static class ListSessionEntityTypesPage
+      extends AbstractPage<
+          ListSessionEntityTypesRequest,
+          ListSessionEntityTypesResponse,
+          SessionEntityType,
+          ListSessionEntityTypesPage> {
+
+    private ListSessionEntityTypesPage(
+        PageContext<
+                ListSessionEntityTypesRequest, ListSessionEntityTypesResponse, SessionEntityType>
+            context,
+        ListSessionEntityTypesResponse response) {
+      super(context, response);
+    }
+
+    private static ListSessionEntityTypesPage createEmptyPage() {
+      return new ListSessionEntityTypesPage(null, null);
+    }
+
+    @Override
+    protected ListSessionEntityTypesPage createPage(
+        PageContext<
+                ListSessionEntityTypesRequest, ListSessionEntityTypesResponse, SessionEntityType>
+            context,
+        ListSessionEntityTypesResponse response) {
+      return new ListSessionEntityTypesPage(context, response);
+    }
+
+    @Override
+    public ApiFuture<ListSessionEntityTypesPage> createPageAsync(
+        PageContext<
+                ListSessionEntityTypesRequest, ListSessionEntityTypesResponse, SessionEntityType>
+            context,
+        ApiFuture<ListSessionEntityTypesResponse> futureResponse) {
+      return super.createPageAsync(context, futureResponse);
+    }
+  }
+
+  public static class ListSessionEntityTypesFixedSizeCollection
+      extends AbstractFixedSizeCollection<
+          ListSessionEntityTypesRequest,
+          ListSessionEntityTypesResponse,
+          SessionEntityType,
+          ListSessionEntityTypesPage,
+          ListSessionEntityTypesFixedSizeCollection> {
+
+    private ListSessionEntityTypesFixedSizeCollection(
+        List<ListSessionEntityTypesPage> pages, int collectionSize) {
+      super(pages, collectionSize);
+    }
+
+    private static ListSessionEntityTypesFixedSizeCollection createEmptyCollection() {
+      return new ListSessionEntityTypesFixedSizeCollection(null, 0);
+    }
+
+    @Override
+    protected ListSessionEntityTypesFixedSizeCollection createCollection(
+        List<ListSessionEntityTypesPage> pages, int collectionSize) {
+      return new ListSessionEntityTypesFixedSizeCollection(pages, collectionSize);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityTypesSettings.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityTypesSettings.java
new file mode 100644
index 000000000..803ee9c52
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityTypesSettings.java
@@ -0,0 +1,239 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypesClient.ListSessionEntityTypesPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientSettings;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.SessionEntityTypesStubSettings;
+import com.google.protobuf.Empty;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Settings class to configure an instance of {@link SessionEntityTypesClient}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getSessionEntityType to 30 seconds:
+ *
+ * <pre>
+ * <code>
+ * SessionEntityTypesSettings.Builder sessionEntityTypesSettingsBuilder =
+ *     SessionEntityTypesSettings.newBuilder();
+ * sessionEntityTypesSettingsBuilder
+ *     .getSessionEntityTypeSettings()
+ *     .setRetrySettings(
+ *         sessionEntityTypesSettingsBuilder.getSessionEntityTypeSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * SessionEntityTypesSettings sessionEntityTypesSettings = sessionEntityTypesSettingsBuilder.build();
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class SessionEntityTypesSettings extends ClientSettings<SessionEntityTypesSettings> {
+  /** Returns the object with the settings used for calls to listSessionEntityTypes. */
+  public PagedCallSettings<
+          ListSessionEntityTypesRequest,
+          ListSessionEntityTypesResponse,
+          ListSessionEntityTypesPagedResponse>
+      listSessionEntityTypesSettings() {
+    return ((SessionEntityTypesStubSettings) getStubSettings()).listSessionEntityTypesSettings();
+  }
+
+  /** Returns the object with the settings used for calls to getSessionEntityType. */
+  public UnaryCallSettings<GetSessionEntityTypeRequest, SessionEntityType>
+      getSessionEntityTypeSettings() {
+    return ((SessionEntityTypesStubSettings) getStubSettings()).getSessionEntityTypeSettings();
+  }
+
+  /** Returns the object with the settings used for calls to createSessionEntityType. */
+  public UnaryCallSettings<CreateSessionEntityTypeRequest, SessionEntityType>
+      createSessionEntityTypeSettings() {
+    return ((SessionEntityTypesStubSettings) getStubSettings()).createSessionEntityTypeSettings();
+  }
+
+  /** Returns the object with the settings used for calls to updateSessionEntityType. */
+  public UnaryCallSettings<UpdateSessionEntityTypeRequest, SessionEntityType>
+      updateSessionEntityTypeSettings() {
+    return ((SessionEntityTypesStubSettings) getStubSettings()).updateSessionEntityTypeSettings();
+  }
+
+  /** Returns the object with the settings used for calls to deleteSessionEntityType. */
+  public UnaryCallSettings<DeleteSessionEntityTypeRequest, Empty>
+      deleteSessionEntityTypeSettings() {
+    return ((SessionEntityTypesStubSettings) getStubSettings()).deleteSessionEntityTypeSettings();
+  }
+
+  public static final SessionEntityTypesSettings create(SessionEntityTypesStubSettings stub)
+      throws IOException {
+    return new SessionEntityTypesSettings.Builder(stub.toBuilder()).build();
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return SessionEntityTypesStubSettings.defaultExecutorProviderBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return SessionEntityTypesStubSettings.getDefaultEndpoint();
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return SessionEntityTypesStubSettings.getDefaultServiceScopes();
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return SessionEntityTypesStubSettings.defaultCredentialsProviderBuilder();
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return SessionEntityTypesStubSettings.defaultGrpcTransportProviderBuilder();
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return SessionEntityTypesStubSettings.defaultTransportChannelProvider();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return SessionEntityTypesStubSettings.defaultApiClientHeaderProviderBuilder();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected SessionEntityTypesSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+  }
+
+  /** Builder for SessionEntityTypesSettings. */
+  public static class Builder extends ClientSettings.Builder<SessionEntityTypesSettings, Builder> {
+    protected Builder() throws IOException {
+      this((ClientContext) null);
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(SessionEntityTypesStubSettings.newBuilder(clientContext));
+    }
+
+    private static Builder createDefault() {
+      return new Builder(SessionEntityTypesStubSettings.newBuilder());
+    }
+
+    protected Builder(SessionEntityTypesSettings settings) {
+      super(settings.getStubSettings().toBuilder());
+    }
+
+    protected Builder(SessionEntityTypesStubSettings.Builder stubSettings) {
+      super(stubSettings);
+    }
+
+    public SessionEntityTypesStubSettings.Builder getStubSettingsBuilder() {
+      return ((SessionEntityTypesStubSettings.Builder) getStubSettings());
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(
+          getStubSettingsBuilder().unaryMethodSettingsBuilders(), settingsUpdater);
+      return this;
+    }
+
+    /** Returns the builder for the settings used for calls to listSessionEntityTypes. */
+    public PagedCallSettings.Builder<
+            ListSessionEntityTypesRequest,
+            ListSessionEntityTypesResponse,
+            ListSessionEntityTypesPagedResponse>
+        listSessionEntityTypesSettings() {
+      return getStubSettingsBuilder().listSessionEntityTypesSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to getSessionEntityType. */
+    public UnaryCallSettings.Builder<GetSessionEntityTypeRequest, SessionEntityType>
+        getSessionEntityTypeSettings() {
+      return getStubSettingsBuilder().getSessionEntityTypeSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to createSessionEntityType. */
+    public UnaryCallSettings.Builder<CreateSessionEntityTypeRequest, SessionEntityType>
+        createSessionEntityTypeSettings() {
+      return getStubSettingsBuilder().createSessionEntityTypeSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to updateSessionEntityType. */
+    public UnaryCallSettings.Builder<UpdateSessionEntityTypeRequest, SessionEntityType>
+        updateSessionEntityTypeSettings() {
+      return getStubSettingsBuilder().updateSessionEntityTypeSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to deleteSessionEntityType. */
+    public UnaryCallSettings.Builder<DeleteSessionEntityTypeRequest, Empty>
+        deleteSessionEntityTypeSettings() {
+      return getStubSettingsBuilder().deleteSessionEntityTypeSettings();
+    }
+
+    @Override
+    public SessionEntityTypesSettings build() throws IOException {
+      return new SessionEntityTypesSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionsClient.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionsClient.java
new file mode 100644
index 000000000..b04f28d08
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionsClient.java
@@ -0,0 +1,360 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.rpc.BidiStreamingCallable;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.SessionsStub;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.SessionsStubSettings;
+import java.io.IOException;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND SERVICE
+/**
+ * Service Description: A session represents an interaction with a user. You retrieve user input and
+ * pass it to the [DetectIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.DetectIntent] method to
+ * determine user intent and respond.
+ *
+ * <p>This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * <pre>
+ * <code>
+ * try (SessionsClient sessionsClient = SessionsClient.create()) {
+ *   SessionName session = SessionName.ofProjectLocationAgentSessionName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+ *   QueryInput queryInput = QueryInput.newBuilder().build();
+ *   DetectIntentRequest request = DetectIntentRequest.newBuilder()
+ *     .setSession(session.toString())
+ *     .setQueryInput(queryInput)
+ *     .build();
+ *   DetectIntentResponse response = sessionsClient.detectIntent(request);
+ * }
+ * </code>
+ * </pre>
+ *
+ * <p>Note: close() needs to be called on the sessionsClient object to clean up resources such as
+ * threads. In the example above, try-with-resources is used, which automatically calls close().
+ *
+ * <p>The surface of this class includes several types of Java methods for each of the API's
+ * methods:
+ *
+ * <ol>
+ *   <li>A "flattened" method. With this type of method, the fields of the request type have been
+ *       converted into function parameters. It may be the case that not all fields are available as
+ *       parameters, and not every API method will have a flattened method entry point.
+ *   <li>A "request object" method. This type of method only takes one parameter, a request object,
+ *       which must be constructed before the call. Not every API method will have a request object
+ *       method.
+ *   <li>A "callable" method. This type of method takes no parameters and returns an immutable API
+ *       callable object, which can be used to initiate calls to the service.
+ * </ol>
+ *
+ * <p>See the individual methods for example code.
+ *
+ * <p>Many parameters require resource names to be formatted in a particular way. To assist with
+ * these names, this class includes a format method for each type of name, and additionally a parse
+ * method to extract the individual identifiers contained within names that are returned.
+ *
+ * <p>This class can be customized by passing in a custom instance of SessionsSettings to create().
+ * For example:
+ *
+ * <p>To customize credentials:
+ *
+ * <pre>
+ * <code>
+ * SessionsSettings sessionsSettings =
+ *     SessionsSettings.newBuilder()
+ *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
+ *         .build();
+ * SessionsClient sessionsClient =
+ *     SessionsClient.create(sessionsSettings);
+ * </code>
+ * </pre>
+ *
+ * To customize the endpoint:
+ *
+ * <pre>
+ * <code>
+ * SessionsSettings sessionsSettings =
+ *     SessionsSettings.newBuilder().setEndpoint(myEndpoint).build();
+ * SessionsClient sessionsClient =
+ *     SessionsClient.create(sessionsSettings);
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class SessionsClient implements BackgroundResource {
+  private final SessionsSettings settings;
+  private final SessionsStub stub;
+
+  /** Constructs an instance of SessionsClient with default settings. */
+  public static final SessionsClient create() throws IOException {
+    return create(SessionsSettings.newBuilder().build());
+  }
+
+  /**
+   * Constructs an instance of SessionsClient, using the given settings. The channels are created
+   * based on the settings passed in, or defaults for any settings that are not set.
+   */
+  public static final SessionsClient create(SessionsSettings settings) throws IOException {
+    return new SessionsClient(settings);
+  }
+
+  /**
+   * Constructs an instance of SessionsClient, using the given stub for making calls. This is for
+   * advanced usage - prefer to use SessionsSettings}.
+   */
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public static final SessionsClient create(SessionsStub stub) {
+    return new SessionsClient(stub);
+  }
+
+  /**
+   * Constructs an instance of SessionsClient, using the given settings. This is protected so that
+   * it is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected SessionsClient(SessionsSettings settings) throws IOException {
+    this.settings = settings;
+    this.stub = ((SessionsStubSettings) settings.getStubSettings()).createStub();
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  protected SessionsClient(SessionsStub stub) {
+    this.settings = null;
+    this.stub = stub;
+  }
+
+  public final SessionsSettings getSettings() {
+    return settings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public SessionsStub getStub() {
+    return stub;
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Processes a natural language query and returns structured, actionable data as a result. This
+   * method is not idempotent, because it may cause session entity types to be updated, which in
+   * turn might affect results of future queries.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionsClient sessionsClient = SessionsClient.create()) {
+   *   SessionName session = SessionName.ofProjectLocationAgentSessionName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+   *   QueryInput queryInput = QueryInput.newBuilder().build();
+   *   DetectIntentRequest request = DetectIntentRequest.newBuilder()
+   *     .setSession(session.toString())
+   *     .setQueryInput(queryInput)
+   *     .build();
+   *   DetectIntentResponse response = sessionsClient.detectIntent(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final DetectIntentResponse detectIntent(DetectIntentRequest request) {
+    return detectIntentCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Processes a natural language query and returns structured, actionable data as a result. This
+   * method is not idempotent, because it may cause session entity types to be updated, which in
+   * turn might affect results of future queries.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionsClient sessionsClient = SessionsClient.create()) {
+   *   SessionName session = SessionName.ofProjectLocationAgentSessionName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+   *   QueryInput queryInput = QueryInput.newBuilder().build();
+   *   DetectIntentRequest request = DetectIntentRequest.newBuilder()
+   *     .setSession(session.toString())
+   *     .setQueryInput(queryInput)
+   *     .build();
+   *   ApiFuture&lt;DetectIntentResponse&gt; future = sessionsClient.detectIntentCallable().futureCall(request);
+   *   // Do something
+   *   DetectIntentResponse response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<DetectIntentRequest, DetectIntentResponse> detectIntentCallable() {
+    return stub.detectIntentCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Processes a natural language query in audio format in a streaming fashion and returns
+   * structured, actionable data as a result. This method is only available via the gRPC API (not
+   * REST).
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionsClient sessionsClient = SessionsClient.create()) {
+   *   BidiStream&lt;StreamingDetectIntentRequest, StreamingDetectIntentResponse&gt; bidiStream =
+   *       sessionsClient.streamingDetectIntentCallable().call();
+   *
+   *   QueryInput queryInput = QueryInput.newBuilder().build();
+   *   StreamingDetectIntentRequest request = StreamingDetectIntentRequest.newBuilder()
+   *     .setQueryInput(queryInput)
+   *     .build();
+   *   bidiStream.send(request);
+   *   for (StreamingDetectIntentResponse response : bidiStream) {
+   *     // Do something when receive a response
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final BidiStreamingCallable<StreamingDetectIntentRequest, StreamingDetectIntentResponse>
+      streamingDetectIntentCallable() {
+    return stub.streamingDetectIntentCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns preliminary intent match results, doesn't change the session status.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionsClient sessionsClient = SessionsClient.create()) {
+   *   SessionName session = SessionName.ofProjectLocationAgentSessionName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+   *   QueryInput queryInput = QueryInput.newBuilder().build();
+   *   MatchIntentRequest request = MatchIntentRequest.newBuilder()
+   *     .setSession(session.toString())
+   *     .setQueryInput(queryInput)
+   *     .build();
+   *   MatchIntentResponse response = sessionsClient.matchIntent(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final MatchIntentResponse matchIntent(MatchIntentRequest request) {
+    return matchIntentCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns preliminary intent match results, doesn't change the session status.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionsClient sessionsClient = SessionsClient.create()) {
+   *   SessionName session = SessionName.ofProjectLocationAgentSessionName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+   *   QueryInput queryInput = QueryInput.newBuilder().build();
+   *   MatchIntentRequest request = MatchIntentRequest.newBuilder()
+   *     .setSession(session.toString())
+   *     .setQueryInput(queryInput)
+   *     .build();
+   *   ApiFuture&lt;MatchIntentResponse&gt; future = sessionsClient.matchIntentCallable().futureCall(request);
+   *   // Do something
+   *   MatchIntentResponse response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<MatchIntentRequest, MatchIntentResponse> matchIntentCallable() {
+    return stub.matchIntentCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Fulfills a matched intent returned by
+   * [MatchIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.MatchIntent]. Must be called after
+   * [MatchIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.MatchIntent], with input from
+   * [MatchIntentResponse][google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse]. Otherwise, the
+   * behavior is undefined.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionsClient sessionsClient = SessionsClient.create()) {
+   *   FulfillIntentRequest request = FulfillIntentRequest.newBuilder().build();
+   *   FulfillIntentResponse response = sessionsClient.fulfillIntent(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final FulfillIntentResponse fulfillIntent(FulfillIntentRequest request) {
+    return fulfillIntentCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Fulfills a matched intent returned by
+   * [MatchIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.MatchIntent]. Must be called after
+   * [MatchIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.MatchIntent], with input from
+   * [MatchIntentResponse][google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse]. Otherwise, the
+   * behavior is undefined.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (SessionsClient sessionsClient = SessionsClient.create()) {
+   *   FulfillIntentRequest request = FulfillIntentRequest.newBuilder().build();
+   *   ApiFuture&lt;FulfillIntentResponse&gt; future = sessionsClient.fulfillIntentCallable().futureCall(request);
+   *   // Do something
+   *   FulfillIntentResponse response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<FulfillIntentRequest, FulfillIntentResponse> fulfillIntentCallable() {
+    return stub.fulfillIntentCallable();
+  }
+
+  @Override
+  public final void close() {
+    stub.close();
+  }
+
+  @Override
+  public void shutdown() {
+    stub.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return stub.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return stub.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    stub.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return stub.awaitTermination(duration, unit);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionsSettings.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionsSettings.java
new file mode 100644
index 000000000..709df6271
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionsSettings.java
@@ -0,0 +1,215 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientSettings;
+import com.google.api.gax.rpc.StreamingCallSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.SessionsStubSettings;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Settings class to configure an instance of {@link SessionsClient}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of detectIntent to 30 seconds:
+ *
+ * <pre>
+ * <code>
+ * SessionsSettings.Builder sessionsSettingsBuilder =
+ *     SessionsSettings.newBuilder();
+ * sessionsSettingsBuilder
+ *     .detectIntentSettings()
+ *     .setRetrySettings(
+ *         sessionsSettingsBuilder.detectIntentSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * SessionsSettings sessionsSettings = sessionsSettingsBuilder.build();
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class SessionsSettings extends ClientSettings<SessionsSettings> {
+  /** Returns the object with the settings used for calls to detectIntent. */
+  public UnaryCallSettings<DetectIntentRequest, DetectIntentResponse> detectIntentSettings() {
+    return ((SessionsStubSettings) getStubSettings()).detectIntentSettings();
+  }
+
+  /** Returns the object with the settings used for calls to streamingDetectIntent. */
+  public StreamingCallSettings<StreamingDetectIntentRequest, StreamingDetectIntentResponse>
+      streamingDetectIntentSettings() {
+    return ((SessionsStubSettings) getStubSettings()).streamingDetectIntentSettings();
+  }
+
+  /** Returns the object with the settings used for calls to matchIntent. */
+  public UnaryCallSettings<MatchIntentRequest, MatchIntentResponse> matchIntentSettings() {
+    return ((SessionsStubSettings) getStubSettings()).matchIntentSettings();
+  }
+
+  /** Returns the object with the settings used for calls to fulfillIntent. */
+  public UnaryCallSettings<FulfillIntentRequest, FulfillIntentResponse> fulfillIntentSettings() {
+    return ((SessionsStubSettings) getStubSettings()).fulfillIntentSettings();
+  }
+
+  public static final SessionsSettings create(SessionsStubSettings stub) throws IOException {
+    return new SessionsSettings.Builder(stub.toBuilder()).build();
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return SessionsStubSettings.defaultExecutorProviderBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return SessionsStubSettings.getDefaultEndpoint();
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return SessionsStubSettings.getDefaultServiceScopes();
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return SessionsStubSettings.defaultCredentialsProviderBuilder();
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return SessionsStubSettings.defaultGrpcTransportProviderBuilder();
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return SessionsStubSettings.defaultTransportChannelProvider();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return SessionsStubSettings.defaultApiClientHeaderProviderBuilder();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected SessionsSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+  }
+
+  /** Builder for SessionsSettings. */
+  public static class Builder extends ClientSettings.Builder<SessionsSettings, Builder> {
+    protected Builder() throws IOException {
+      this((ClientContext) null);
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(SessionsStubSettings.newBuilder(clientContext));
+    }
+
+    private static Builder createDefault() {
+      return new Builder(SessionsStubSettings.newBuilder());
+    }
+
+    protected Builder(SessionsSettings settings) {
+      super(settings.getStubSettings().toBuilder());
+    }
+
+    protected Builder(SessionsStubSettings.Builder stubSettings) {
+      super(stubSettings);
+    }
+
+    public SessionsStubSettings.Builder getStubSettingsBuilder() {
+      return ((SessionsStubSettings.Builder) getStubSettings());
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(
+          getStubSettingsBuilder().unaryMethodSettingsBuilders(), settingsUpdater);
+      return this;
+    }
+
+    /** Returns the builder for the settings used for calls to detectIntent. */
+    public UnaryCallSettings.Builder<DetectIntentRequest, DetectIntentResponse>
+        detectIntentSettings() {
+      return getStubSettingsBuilder().detectIntentSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to streamingDetectIntent. */
+    public StreamingCallSettings.Builder<
+            StreamingDetectIntentRequest, StreamingDetectIntentResponse>
+        streamingDetectIntentSettings() {
+      return getStubSettingsBuilder().streamingDetectIntentSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to matchIntent. */
+    public UnaryCallSettings.Builder<MatchIntentRequest, MatchIntentResponse>
+        matchIntentSettings() {
+      return getStubSettingsBuilder().matchIntentSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to fulfillIntent. */
+    public UnaryCallSettings.Builder<FulfillIntentRequest, FulfillIntentResponse>
+        fulfillIntentSettings() {
+      return getStubSettingsBuilder().fulfillIntentSettings();
+    }
+
+    @Override
+    public SessionsSettings build() throws IOException {
+      return new SessionsSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroupsClient.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroupsClient.java
new file mode 100644
index 000000000..4e8361932
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroupsClient.java
@@ -0,0 +1,829 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.ApiFutures;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.paging.AbstractFixedSizeCollection;
+import com.google.api.gax.paging.AbstractPage;
+import com.google.api.gax.paging.AbstractPagedListResponse;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.TransitionRouteGroupsStub;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.TransitionRouteGroupsStubSettings;
+import com.google.common.util.concurrent.MoreExecutors;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import java.io.IOException;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND SERVICE
+/**
+ * Service Description: Service for managing
+ * [TransitionRouteGroups][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+ *
+ * <p>This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * <pre>
+ * <code>
+ * try (TransitionRouteGroupsClient transitionRouteGroupsClient = TransitionRouteGroupsClient.create()) {
+ *   TransitionRouteGroupName name = TransitionRouteGroupName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[TRANSITION_ROUTE_GROUP]");
+ *   TransitionRouteGroup response = transitionRouteGroupsClient.getTransitionRouteGroup(name);
+ * }
+ * </code>
+ * </pre>
+ *
+ * <p>Note: close() needs to be called on the transitionRouteGroupsClient object to clean up
+ * resources such as threads. In the example above, try-with-resources is used, which automatically
+ * calls close().
+ *
+ * <p>The surface of this class includes several types of Java methods for each of the API's
+ * methods:
+ *
+ * <ol>
+ *   <li>A "flattened" method. With this type of method, the fields of the request type have been
+ *       converted into function parameters. It may be the case that not all fields are available as
+ *       parameters, and not every API method will have a flattened method entry point.
+ *   <li>A "request object" method. This type of method only takes one parameter, a request object,
+ *       which must be constructed before the call. Not every API method will have a request object
+ *       method.
+ *   <li>A "callable" method. This type of method takes no parameters and returns an immutable API
+ *       callable object, which can be used to initiate calls to the service.
+ * </ol>
+ *
+ * <p>See the individual methods for example code.
+ *
+ * <p>Many parameters require resource names to be formatted in a particular way. To assist with
+ * these names, this class includes a format method for each type of name, and additionally a parse
+ * method to extract the individual identifiers contained within names that are returned.
+ *
+ * <p>This class can be customized by passing in a custom instance of TransitionRouteGroupsSettings
+ * to create(). For example:
+ *
+ * <p>To customize credentials:
+ *
+ * <pre>
+ * <code>
+ * TransitionRouteGroupsSettings transitionRouteGroupsSettings =
+ *     TransitionRouteGroupsSettings.newBuilder()
+ *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
+ *         .build();
+ * TransitionRouteGroupsClient transitionRouteGroupsClient =
+ *     TransitionRouteGroupsClient.create(transitionRouteGroupsSettings);
+ * </code>
+ * </pre>
+ *
+ * To customize the endpoint:
+ *
+ * <pre>
+ * <code>
+ * TransitionRouteGroupsSettings transitionRouteGroupsSettings =
+ *     TransitionRouteGroupsSettings.newBuilder().setEndpoint(myEndpoint).build();
+ * TransitionRouteGroupsClient transitionRouteGroupsClient =
+ *     TransitionRouteGroupsClient.create(transitionRouteGroupsSettings);
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class TransitionRouteGroupsClient implements BackgroundResource {
+  private final TransitionRouteGroupsSettings settings;
+  private final TransitionRouteGroupsStub stub;
+
+  /** Constructs an instance of TransitionRouteGroupsClient with default settings. */
+  public static final TransitionRouteGroupsClient create() throws IOException {
+    return create(TransitionRouteGroupsSettings.newBuilder().build());
+  }
+
+  /**
+   * Constructs an instance of TransitionRouteGroupsClient, using the given settings. The channels
+   * are created based on the settings passed in, or defaults for any settings that are not set.
+   */
+  public static final TransitionRouteGroupsClient create(TransitionRouteGroupsSettings settings)
+      throws IOException {
+    return new TransitionRouteGroupsClient(settings);
+  }
+
+  /**
+   * Constructs an instance of TransitionRouteGroupsClient, using the given stub for making calls.
+   * This is for advanced usage - prefer to use TransitionRouteGroupsSettings}.
+   */
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public static final TransitionRouteGroupsClient create(TransitionRouteGroupsStub stub) {
+    return new TransitionRouteGroupsClient(stub);
+  }
+
+  /**
+   * Constructs an instance of TransitionRouteGroupsClient, using the given settings. This is
+   * protected so that it is easy to make a subclass, but otherwise, the static factory methods
+   * should be preferred.
+   */
+  protected TransitionRouteGroupsClient(TransitionRouteGroupsSettings settings) throws IOException {
+    this.settings = settings;
+    this.stub = ((TransitionRouteGroupsStubSettings) settings.getStubSettings()).createStub();
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  protected TransitionRouteGroupsClient(TransitionRouteGroupsStub stub) {
+    this.settings = null;
+    this.stub = stub;
+  }
+
+  public final TransitionRouteGroupsSettings getSettings() {
+    return settings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public TransitionRouteGroupsStub getStub() {
+    return stub;
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all transition route groups in the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (TransitionRouteGroupsClient transitionRouteGroupsClient = TransitionRouteGroupsClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   for (TransitionRouteGroup element : transitionRouteGroupsClient.listTransitionRouteGroups(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The flow to list all transition route groups for. Format:
+   *     `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/flows/&lt;Flow ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListTransitionRouteGroupsPagedResponse listTransitionRouteGroups(FlowName parent) {
+    ListTransitionRouteGroupsRequest request =
+        ListTransitionRouteGroupsRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .build();
+    return listTransitionRouteGroups(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all transition route groups in the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (TransitionRouteGroupsClient transitionRouteGroupsClient = TransitionRouteGroupsClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   for (TransitionRouteGroup element : transitionRouteGroupsClient.listTransitionRouteGroups(parent.toString()).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The flow to list all transition route groups for. Format:
+   *     `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/flows/&lt;Flow ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListTransitionRouteGroupsPagedResponse listTransitionRouteGroups(String parent) {
+    ListTransitionRouteGroupsRequest request =
+        ListTransitionRouteGroupsRequest.newBuilder().setParent(parent).build();
+    return listTransitionRouteGroups(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all transition route groups in the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (TransitionRouteGroupsClient transitionRouteGroupsClient = TransitionRouteGroupsClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   ListTransitionRouteGroupsRequest request = ListTransitionRouteGroupsRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   for (TransitionRouteGroup element : transitionRouteGroupsClient.listTransitionRouteGroups(request).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListTransitionRouteGroupsPagedResponse listTransitionRouteGroups(
+      ListTransitionRouteGroupsRequest request) {
+    return listTransitionRouteGroupsPagedCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all transition route groups in the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (TransitionRouteGroupsClient transitionRouteGroupsClient = TransitionRouteGroupsClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   ListTransitionRouteGroupsRequest request = ListTransitionRouteGroupsRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   ApiFuture&lt;ListTransitionRouteGroupsPagedResponse&gt; future = transitionRouteGroupsClient.listTransitionRouteGroupsPagedCallable().futureCall(request);
+   *   // Do something
+   *   for (TransitionRouteGroup element : future.get().iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<
+          ListTransitionRouteGroupsRequest, ListTransitionRouteGroupsPagedResponse>
+      listTransitionRouteGroupsPagedCallable() {
+    return stub.listTransitionRouteGroupsPagedCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all transition route groups in the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (TransitionRouteGroupsClient transitionRouteGroupsClient = TransitionRouteGroupsClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   ListTransitionRouteGroupsRequest request = ListTransitionRouteGroupsRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   while (true) {
+   *     ListTransitionRouteGroupsResponse response = transitionRouteGroupsClient.listTransitionRouteGroupsCallable().call(request);
+   *     for (TransitionRouteGroup element : response.getTransitionRouteGroupsList()) {
+   *       // doThingsWith(element);
+   *     }
+   *     String nextPageToken = response.getNextPageToken();
+   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
+   *       request = request.toBuilder().setPageToken(nextPageToken).build();
+   *     } else {
+   *       break;
+   *     }
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<ListTransitionRouteGroupsRequest, ListTransitionRouteGroupsResponse>
+      listTransitionRouteGroupsCallable() {
+    return stub.listTransitionRouteGroupsCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified
+   * [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (TransitionRouteGroupsClient transitionRouteGroupsClient = TransitionRouteGroupsClient.create()) {
+   *   TransitionRouteGroupName name = TransitionRouteGroupName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[TRANSITION_ROUTE_GROUP]");
+   *   TransitionRouteGroup response = transitionRouteGroupsClient.getTransitionRouteGroup(name);
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the
+   *     [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup]. Format:
+   *     `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final TransitionRouteGroup getTransitionRouteGroup(TransitionRouteGroupName name) {
+    GetTransitionRouteGroupRequest request =
+        GetTransitionRouteGroupRequest.newBuilder()
+            .setName(name == null ? null : name.toString())
+            .build();
+    return getTransitionRouteGroup(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified
+   * [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (TransitionRouteGroupsClient transitionRouteGroupsClient = TransitionRouteGroupsClient.create()) {
+   *   TransitionRouteGroupName name = TransitionRouteGroupName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[TRANSITION_ROUTE_GROUP]");
+   *   TransitionRouteGroup response = transitionRouteGroupsClient.getTransitionRouteGroup(name.toString());
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the
+   *     [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup]. Format:
+   *     `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final TransitionRouteGroup getTransitionRouteGroup(String name) {
+    GetTransitionRouteGroupRequest request =
+        GetTransitionRouteGroupRequest.newBuilder().setName(name).build();
+    return getTransitionRouteGroup(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified
+   * [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (TransitionRouteGroupsClient transitionRouteGroupsClient = TransitionRouteGroupsClient.create()) {
+   *   TransitionRouteGroupName name = TransitionRouteGroupName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[TRANSITION_ROUTE_GROUP]");
+   *   GetTransitionRouteGroupRequest request = GetTransitionRouteGroupRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   TransitionRouteGroup response = transitionRouteGroupsClient.getTransitionRouteGroup(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final TransitionRouteGroup getTransitionRouteGroup(
+      GetTransitionRouteGroupRequest request) {
+    return getTransitionRouteGroupCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified
+   * [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (TransitionRouteGroupsClient transitionRouteGroupsClient = TransitionRouteGroupsClient.create()) {
+   *   TransitionRouteGroupName name = TransitionRouteGroupName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[TRANSITION_ROUTE_GROUP]");
+   *   GetTransitionRouteGroupRequest request = GetTransitionRouteGroupRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;TransitionRouteGroup&gt; future = transitionRouteGroupsClient.getTransitionRouteGroupCallable().futureCall(request);
+   *   // Do something
+   *   TransitionRouteGroup response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<GetTransitionRouteGroupRequest, TransitionRouteGroup>
+      getTransitionRouteGroupCallable() {
+    return stub.getTransitionRouteGroupCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates an [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] in
+   * the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (TransitionRouteGroupsClient transitionRouteGroupsClient = TransitionRouteGroupsClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   TransitionRouteGroup transitionRouteGroup = TransitionRouteGroup.newBuilder().build();
+   *   TransitionRouteGroup response = transitionRouteGroupsClient.createTransitionRouteGroup(parent, transitionRouteGroup);
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The flow to create an
+   *     [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] for.
+   *     Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/flows/&lt;Flow ID&gt;`.
+   * @param transitionRouteGroup Required. The transition route group to create.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final TransitionRouteGroup createTransitionRouteGroup(
+      FlowName parent, TransitionRouteGroup transitionRouteGroup) {
+    CreateTransitionRouteGroupRequest request =
+        CreateTransitionRouteGroupRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .setTransitionRouteGroup(transitionRouteGroup)
+            .build();
+    return createTransitionRouteGroup(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates an [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] in
+   * the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (TransitionRouteGroupsClient transitionRouteGroupsClient = TransitionRouteGroupsClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   TransitionRouteGroup transitionRouteGroup = TransitionRouteGroup.newBuilder().build();
+   *   TransitionRouteGroup response = transitionRouteGroupsClient.createTransitionRouteGroup(parent.toString(), transitionRouteGroup);
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The flow to create an
+   *     [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] for.
+   *     Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/flows/&lt;Flow ID&gt;`.
+   * @param transitionRouteGroup Required. The transition route group to create.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final TransitionRouteGroup createTransitionRouteGroup(
+      String parent, TransitionRouteGroup transitionRouteGroup) {
+    CreateTransitionRouteGroupRequest request =
+        CreateTransitionRouteGroupRequest.newBuilder()
+            .setParent(parent)
+            .setTransitionRouteGroup(transitionRouteGroup)
+            .build();
+    return createTransitionRouteGroup(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates an [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] in
+   * the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (TransitionRouteGroupsClient transitionRouteGroupsClient = TransitionRouteGroupsClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   TransitionRouteGroup transitionRouteGroup = TransitionRouteGroup.newBuilder().build();
+   *   CreateTransitionRouteGroupRequest request = CreateTransitionRouteGroupRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .setTransitionRouteGroup(transitionRouteGroup)
+   *     .build();
+   *   TransitionRouteGroup response = transitionRouteGroupsClient.createTransitionRouteGroup(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final TransitionRouteGroup createTransitionRouteGroup(
+      CreateTransitionRouteGroupRequest request) {
+    return createTransitionRouteGroupCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates an [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] in
+   * the specified flow.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (TransitionRouteGroupsClient transitionRouteGroupsClient = TransitionRouteGroupsClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   TransitionRouteGroup transitionRouteGroup = TransitionRouteGroup.newBuilder().build();
+   *   CreateTransitionRouteGroupRequest request = CreateTransitionRouteGroupRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .setTransitionRouteGroup(transitionRouteGroup)
+   *     .build();
+   *   ApiFuture&lt;TransitionRouteGroup&gt; future = transitionRouteGroupsClient.createTransitionRouteGroupCallable().futureCall(request);
+   *   // Do something
+   *   TransitionRouteGroup response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<CreateTransitionRouteGroupRequest, TransitionRouteGroup>
+      createTransitionRouteGroupCallable() {
+    return stub.createTransitionRouteGroupCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified
+   * [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (TransitionRouteGroupsClient transitionRouteGroupsClient = TransitionRouteGroupsClient.create()) {
+   *   TransitionRouteGroup transitionRouteGroup = TransitionRouteGroup.newBuilder().build();
+   *   FieldMask updateMask = FieldMask.newBuilder().build();
+   *   TransitionRouteGroup response = transitionRouteGroupsClient.updateTransitionRouteGroup(transitionRouteGroup, updateMask);
+   * }
+   * </code></pre>
+   *
+   * @param transitionRouteGroup Required. The transition route group to update.
+   * @param updateMask The mask to control which fields get updated.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final TransitionRouteGroup updateTransitionRouteGroup(
+      TransitionRouteGroup transitionRouteGroup, FieldMask updateMask) {
+    UpdateTransitionRouteGroupRequest request =
+        UpdateTransitionRouteGroupRequest.newBuilder()
+            .setTransitionRouteGroup(transitionRouteGroup)
+            .setUpdateMask(updateMask)
+            .build();
+    return updateTransitionRouteGroup(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified
+   * [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (TransitionRouteGroupsClient transitionRouteGroupsClient = TransitionRouteGroupsClient.create()) {
+   *   TransitionRouteGroup transitionRouteGroup = TransitionRouteGroup.newBuilder().build();
+   *   UpdateTransitionRouteGroupRequest request = UpdateTransitionRouteGroupRequest.newBuilder()
+   *     .setTransitionRouteGroup(transitionRouteGroup)
+   *     .build();
+   *   TransitionRouteGroup response = transitionRouteGroupsClient.updateTransitionRouteGroup(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final TransitionRouteGroup updateTransitionRouteGroup(
+      UpdateTransitionRouteGroupRequest request) {
+    return updateTransitionRouteGroupCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified
+   * [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (TransitionRouteGroupsClient transitionRouteGroupsClient = TransitionRouteGroupsClient.create()) {
+   *   TransitionRouteGroup transitionRouteGroup = TransitionRouteGroup.newBuilder().build();
+   *   UpdateTransitionRouteGroupRequest request = UpdateTransitionRouteGroupRequest.newBuilder()
+   *     .setTransitionRouteGroup(transitionRouteGroup)
+   *     .build();
+   *   ApiFuture&lt;TransitionRouteGroup&gt; future = transitionRouteGroupsClient.updateTransitionRouteGroupCallable().futureCall(request);
+   *   // Do something
+   *   TransitionRouteGroup response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<UpdateTransitionRouteGroupRequest, TransitionRouteGroup>
+      updateTransitionRouteGroupCallable() {
+    return stub.updateTransitionRouteGroupCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified
+   * [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (TransitionRouteGroupsClient transitionRouteGroupsClient = TransitionRouteGroupsClient.create()) {
+   *   TransitionRouteGroupName name = TransitionRouteGroupName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[TRANSITION_ROUTE_GROUP]");
+   *   transitionRouteGroupsClient.deleteTransitionRouteGroup(name);
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the
+   *     [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] to delete.
+   *     Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteTransitionRouteGroup(TransitionRouteGroupName name) {
+    DeleteTransitionRouteGroupRequest request =
+        DeleteTransitionRouteGroupRequest.newBuilder()
+            .setName(name == null ? null : name.toString())
+            .build();
+    deleteTransitionRouteGroup(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified
+   * [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (TransitionRouteGroupsClient transitionRouteGroupsClient = TransitionRouteGroupsClient.create()) {
+   *   TransitionRouteGroupName name = TransitionRouteGroupName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[TRANSITION_ROUTE_GROUP]");
+   *   transitionRouteGroupsClient.deleteTransitionRouteGroup(name.toString());
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the
+   *     [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] to delete.
+   *     Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteTransitionRouteGroup(String name) {
+    DeleteTransitionRouteGroupRequest request =
+        DeleteTransitionRouteGroupRequest.newBuilder().setName(name).build();
+    deleteTransitionRouteGroup(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified
+   * [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (TransitionRouteGroupsClient transitionRouteGroupsClient = TransitionRouteGroupsClient.create()) {
+   *   TransitionRouteGroupName name = TransitionRouteGroupName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[TRANSITION_ROUTE_GROUP]");
+   *   DeleteTransitionRouteGroupRequest request = DeleteTransitionRouteGroupRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   transitionRouteGroupsClient.deleteTransitionRouteGroup(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteTransitionRouteGroup(DeleteTransitionRouteGroupRequest request) {
+    deleteTransitionRouteGroupCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified
+   * [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (TransitionRouteGroupsClient transitionRouteGroupsClient = TransitionRouteGroupsClient.create()) {
+   *   TransitionRouteGroupName name = TransitionRouteGroupName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[TRANSITION_ROUTE_GROUP]");
+   *   DeleteTransitionRouteGroupRequest request = DeleteTransitionRouteGroupRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;Void&gt; future = transitionRouteGroupsClient.deleteTransitionRouteGroupCallable().futureCall(request);
+   *   // Do something
+   *   future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<DeleteTransitionRouteGroupRequest, Empty>
+      deleteTransitionRouteGroupCallable() {
+    return stub.deleteTransitionRouteGroupCallable();
+  }
+
+  @Override
+  public final void close() {
+    stub.close();
+  }
+
+  @Override
+  public void shutdown() {
+    stub.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return stub.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return stub.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    stub.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return stub.awaitTermination(duration, unit);
+  }
+
+  public static class ListTransitionRouteGroupsPagedResponse
+      extends AbstractPagedListResponse<
+          ListTransitionRouteGroupsRequest,
+          ListTransitionRouteGroupsResponse,
+          TransitionRouteGroup,
+          ListTransitionRouteGroupsPage,
+          ListTransitionRouteGroupsFixedSizeCollection> {
+
+    public static ApiFuture<ListTransitionRouteGroupsPagedResponse> createAsync(
+        PageContext<
+                ListTransitionRouteGroupsRequest,
+                ListTransitionRouteGroupsResponse,
+                TransitionRouteGroup>
+            context,
+        ApiFuture<ListTransitionRouteGroupsResponse> futureResponse) {
+      ApiFuture<ListTransitionRouteGroupsPage> futurePage =
+          ListTransitionRouteGroupsPage.createEmptyPage().createPageAsync(context, futureResponse);
+      return ApiFutures.transform(
+          futurePage,
+          new ApiFunction<ListTransitionRouteGroupsPage, ListTransitionRouteGroupsPagedResponse>() {
+            @Override
+            public ListTransitionRouteGroupsPagedResponse apply(
+                ListTransitionRouteGroupsPage input) {
+              return new ListTransitionRouteGroupsPagedResponse(input);
+            }
+          },
+          MoreExecutors.directExecutor());
+    }
+
+    private ListTransitionRouteGroupsPagedResponse(ListTransitionRouteGroupsPage page) {
+      super(page, ListTransitionRouteGroupsFixedSizeCollection.createEmptyCollection());
+    }
+  }
+
+  public static class ListTransitionRouteGroupsPage
+      extends AbstractPage<
+          ListTransitionRouteGroupsRequest,
+          ListTransitionRouteGroupsResponse,
+          TransitionRouteGroup,
+          ListTransitionRouteGroupsPage> {
+
+    private ListTransitionRouteGroupsPage(
+        PageContext<
+                ListTransitionRouteGroupsRequest,
+                ListTransitionRouteGroupsResponse,
+                TransitionRouteGroup>
+            context,
+        ListTransitionRouteGroupsResponse response) {
+      super(context, response);
+    }
+
+    private static ListTransitionRouteGroupsPage createEmptyPage() {
+      return new ListTransitionRouteGroupsPage(null, null);
+    }
+
+    @Override
+    protected ListTransitionRouteGroupsPage createPage(
+        PageContext<
+                ListTransitionRouteGroupsRequest,
+                ListTransitionRouteGroupsResponse,
+                TransitionRouteGroup>
+            context,
+        ListTransitionRouteGroupsResponse response) {
+      return new ListTransitionRouteGroupsPage(context, response);
+    }
+
+    @Override
+    public ApiFuture<ListTransitionRouteGroupsPage> createPageAsync(
+        PageContext<
+                ListTransitionRouteGroupsRequest,
+                ListTransitionRouteGroupsResponse,
+                TransitionRouteGroup>
+            context,
+        ApiFuture<ListTransitionRouteGroupsResponse> futureResponse) {
+      return super.createPageAsync(context, futureResponse);
+    }
+  }
+
+  public static class ListTransitionRouteGroupsFixedSizeCollection
+      extends AbstractFixedSizeCollection<
+          ListTransitionRouteGroupsRequest,
+          ListTransitionRouteGroupsResponse,
+          TransitionRouteGroup,
+          ListTransitionRouteGroupsPage,
+          ListTransitionRouteGroupsFixedSizeCollection> {
+
+    private ListTransitionRouteGroupsFixedSizeCollection(
+        List<ListTransitionRouteGroupsPage> pages, int collectionSize) {
+      super(pages, collectionSize);
+    }
+
+    private static ListTransitionRouteGroupsFixedSizeCollection createEmptyCollection() {
+      return new ListTransitionRouteGroupsFixedSizeCollection(null, 0);
+    }
+
+    @Override
+    protected ListTransitionRouteGroupsFixedSizeCollection createCollection(
+        List<ListTransitionRouteGroupsPage> pages, int collectionSize) {
+      return new ListTransitionRouteGroupsFixedSizeCollection(pages, collectionSize);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroupsSettings.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroupsSettings.java
new file mode 100644
index 000000000..729f2af46
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroupsSettings.java
@@ -0,0 +1,245 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupsClient.ListTransitionRouteGroupsPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientSettings;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.TransitionRouteGroupsStubSettings;
+import com.google.protobuf.Empty;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Settings class to configure an instance of {@link TransitionRouteGroupsClient}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getTransitionRouteGroup to 30 seconds:
+ *
+ * <pre>
+ * <code>
+ * TransitionRouteGroupsSettings.Builder transitionRouteGroupsSettingsBuilder =
+ *     TransitionRouteGroupsSettings.newBuilder();
+ * transitionRouteGroupsSettingsBuilder
+ *     .getTransitionRouteGroupSettings()
+ *     .setRetrySettings(
+ *         transitionRouteGroupsSettingsBuilder.getTransitionRouteGroupSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * TransitionRouteGroupsSettings transitionRouteGroupsSettings = transitionRouteGroupsSettingsBuilder.build();
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class TransitionRouteGroupsSettings extends ClientSettings<TransitionRouteGroupsSettings> {
+  /** Returns the object with the settings used for calls to listTransitionRouteGroups. */
+  public PagedCallSettings<
+          ListTransitionRouteGroupsRequest,
+          ListTransitionRouteGroupsResponse,
+          ListTransitionRouteGroupsPagedResponse>
+      listTransitionRouteGroupsSettings() {
+    return ((TransitionRouteGroupsStubSettings) getStubSettings())
+        .listTransitionRouteGroupsSettings();
+  }
+
+  /** Returns the object with the settings used for calls to getTransitionRouteGroup. */
+  public UnaryCallSettings<GetTransitionRouteGroupRequest, TransitionRouteGroup>
+      getTransitionRouteGroupSettings() {
+    return ((TransitionRouteGroupsStubSettings) getStubSettings())
+        .getTransitionRouteGroupSettings();
+  }
+
+  /** Returns the object with the settings used for calls to createTransitionRouteGroup. */
+  public UnaryCallSettings<CreateTransitionRouteGroupRequest, TransitionRouteGroup>
+      createTransitionRouteGroupSettings() {
+    return ((TransitionRouteGroupsStubSettings) getStubSettings())
+        .createTransitionRouteGroupSettings();
+  }
+
+  /** Returns the object with the settings used for calls to updateTransitionRouteGroup. */
+  public UnaryCallSettings<UpdateTransitionRouteGroupRequest, TransitionRouteGroup>
+      updateTransitionRouteGroupSettings() {
+    return ((TransitionRouteGroupsStubSettings) getStubSettings())
+        .updateTransitionRouteGroupSettings();
+  }
+
+  /** Returns the object with the settings used for calls to deleteTransitionRouteGroup. */
+  public UnaryCallSettings<DeleteTransitionRouteGroupRequest, Empty>
+      deleteTransitionRouteGroupSettings() {
+    return ((TransitionRouteGroupsStubSettings) getStubSettings())
+        .deleteTransitionRouteGroupSettings();
+  }
+
+  public static final TransitionRouteGroupsSettings create(TransitionRouteGroupsStubSettings stub)
+      throws IOException {
+    return new TransitionRouteGroupsSettings.Builder(stub.toBuilder()).build();
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return TransitionRouteGroupsStubSettings.defaultExecutorProviderBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return TransitionRouteGroupsStubSettings.getDefaultEndpoint();
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return TransitionRouteGroupsStubSettings.getDefaultServiceScopes();
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return TransitionRouteGroupsStubSettings.defaultCredentialsProviderBuilder();
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return TransitionRouteGroupsStubSettings.defaultGrpcTransportProviderBuilder();
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return TransitionRouteGroupsStubSettings.defaultTransportChannelProvider();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return TransitionRouteGroupsStubSettings.defaultApiClientHeaderProviderBuilder();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected TransitionRouteGroupsSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+  }
+
+  /** Builder for TransitionRouteGroupsSettings. */
+  public static class Builder
+      extends ClientSettings.Builder<TransitionRouteGroupsSettings, Builder> {
+    protected Builder() throws IOException {
+      this((ClientContext) null);
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(TransitionRouteGroupsStubSettings.newBuilder(clientContext));
+    }
+
+    private static Builder createDefault() {
+      return new Builder(TransitionRouteGroupsStubSettings.newBuilder());
+    }
+
+    protected Builder(TransitionRouteGroupsSettings settings) {
+      super(settings.getStubSettings().toBuilder());
+    }
+
+    protected Builder(TransitionRouteGroupsStubSettings.Builder stubSettings) {
+      super(stubSettings);
+    }
+
+    public TransitionRouteGroupsStubSettings.Builder getStubSettingsBuilder() {
+      return ((TransitionRouteGroupsStubSettings.Builder) getStubSettings());
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(
+          getStubSettingsBuilder().unaryMethodSettingsBuilders(), settingsUpdater);
+      return this;
+    }
+
+    /** Returns the builder for the settings used for calls to listTransitionRouteGroups. */
+    public PagedCallSettings.Builder<
+            ListTransitionRouteGroupsRequest,
+            ListTransitionRouteGroupsResponse,
+            ListTransitionRouteGroupsPagedResponse>
+        listTransitionRouteGroupsSettings() {
+      return getStubSettingsBuilder().listTransitionRouteGroupsSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to getTransitionRouteGroup. */
+    public UnaryCallSettings.Builder<GetTransitionRouteGroupRequest, TransitionRouteGroup>
+        getTransitionRouteGroupSettings() {
+      return getStubSettingsBuilder().getTransitionRouteGroupSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to createTransitionRouteGroup. */
+    public UnaryCallSettings.Builder<CreateTransitionRouteGroupRequest, TransitionRouteGroup>
+        createTransitionRouteGroupSettings() {
+      return getStubSettingsBuilder().createTransitionRouteGroupSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to updateTransitionRouteGroup. */
+    public UnaryCallSettings.Builder<UpdateTransitionRouteGroupRequest, TransitionRouteGroup>
+        updateTransitionRouteGroupSettings() {
+      return getStubSettingsBuilder().updateTransitionRouteGroupSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to deleteTransitionRouteGroup. */
+    public UnaryCallSettings.Builder<DeleteTransitionRouteGroupRequest, Empty>
+        deleteTransitionRouteGroupSettings() {
+      return getStubSettingsBuilder().deleteTransitionRouteGroupSettings();
+    }
+
+    @Override
+    public TransitionRouteGroupsSettings build() throws IOException {
+      return new TransitionRouteGroupsSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VersionsClient.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VersionsClient.java
new file mode 100644
index 000000000..1dcd21179
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VersionsClient.java
@@ -0,0 +1,945 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.ApiFutures;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.longrunning.OperationFuture;
+import com.google.api.gax.paging.AbstractFixedSizeCollection;
+import com.google.api.gax.paging.AbstractPage;
+import com.google.api.gax.paging.AbstractPagedListResponse;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.VersionsStub;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.VersionsStubSettings;
+import com.google.common.util.concurrent.MoreExecutors;
+import com.google.longrunning.Operation;
+import com.google.longrunning.OperationsClient;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import com.google.protobuf.Struct;
+import java.io.IOException;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND SERVICE
+/**
+ * Service Description: Service for managing [Versions][google.cloud.dialogflow.cx.v3beta1.Version].
+ *
+ * <p>This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * <pre>
+ * <code>
+ * try (VersionsClient versionsClient = VersionsClient.create()) {
+ *   VersionName name = VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+ *   Version response = versionsClient.getVersion(name);
+ * }
+ * </code>
+ * </pre>
+ *
+ * <p>Note: close() needs to be called on the versionsClient object to clean up resources such as
+ * threads. In the example above, try-with-resources is used, which automatically calls close().
+ *
+ * <p>The surface of this class includes several types of Java methods for each of the API's
+ * methods:
+ *
+ * <ol>
+ *   <li>A "flattened" method. With this type of method, the fields of the request type have been
+ *       converted into function parameters. It may be the case that not all fields are available as
+ *       parameters, and not every API method will have a flattened method entry point.
+ *   <li>A "request object" method. This type of method only takes one parameter, a request object,
+ *       which must be constructed before the call. Not every API method will have a request object
+ *       method.
+ *   <li>A "callable" method. This type of method takes no parameters and returns an immutable API
+ *       callable object, which can be used to initiate calls to the service.
+ * </ol>
+ *
+ * <p>See the individual methods for example code.
+ *
+ * <p>Many parameters require resource names to be formatted in a particular way. To assist with
+ * these names, this class includes a format method for each type of name, and additionally a parse
+ * method to extract the individual identifiers contained within names that are returned.
+ *
+ * <p>This class can be customized by passing in a custom instance of VersionsSettings to create().
+ * For example:
+ *
+ * <p>To customize credentials:
+ *
+ * <pre>
+ * <code>
+ * VersionsSettings versionsSettings =
+ *     VersionsSettings.newBuilder()
+ *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
+ *         .build();
+ * VersionsClient versionsClient =
+ *     VersionsClient.create(versionsSettings);
+ * </code>
+ * </pre>
+ *
+ * To customize the endpoint:
+ *
+ * <pre>
+ * <code>
+ * VersionsSettings versionsSettings =
+ *     VersionsSettings.newBuilder().setEndpoint(myEndpoint).build();
+ * VersionsClient versionsClient =
+ *     VersionsClient.create(versionsSettings);
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class VersionsClient implements BackgroundResource {
+  private final VersionsSettings settings;
+  private final VersionsStub stub;
+  private final OperationsClient operationsClient;
+
+  /** Constructs an instance of VersionsClient with default settings. */
+  public static final VersionsClient create() throws IOException {
+    return create(VersionsSettings.newBuilder().build());
+  }
+
+  /**
+   * Constructs an instance of VersionsClient, using the given settings. The channels are created
+   * based on the settings passed in, or defaults for any settings that are not set.
+   */
+  public static final VersionsClient create(VersionsSettings settings) throws IOException {
+    return new VersionsClient(settings);
+  }
+
+  /**
+   * Constructs an instance of VersionsClient, using the given stub for making calls. This is for
+   * advanced usage - prefer to use VersionsSettings}.
+   */
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public static final VersionsClient create(VersionsStub stub) {
+    return new VersionsClient(stub);
+  }
+
+  /**
+   * Constructs an instance of VersionsClient, using the given settings. This is protected so that
+   * it is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected VersionsClient(VersionsSettings settings) throws IOException {
+    this.settings = settings;
+    this.stub = ((VersionsStubSettings) settings.getStubSettings()).createStub();
+    this.operationsClient = OperationsClient.create(this.stub.getOperationsStub());
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  protected VersionsClient(VersionsStub stub) {
+    this.settings = null;
+    this.stub = stub;
+    this.operationsClient = OperationsClient.create(this.stub.getOperationsStub());
+  }
+
+  public final VersionsSettings getSettings() {
+    return settings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public VersionsStub getStub() {
+    return stub;
+  }
+
+  /**
+   * Returns the OperationsClient that can be used to query the status of a long-running operation
+   * returned by another API method call.
+   */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public final OperationsClient getOperationsClient() {
+    return operationsClient;
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all versions in the specified
+   * [Flow][google.cloud.dialogflow.cx.v3beta1.Flow].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   for (Version element : versionsClient.listVersions(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to list all
+   *     versions for. Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+   *     ID&gt;/agents/&lt;Agent ID&gt;/flows/&lt;Flow ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListVersionsPagedResponse listVersions(FlowName parent) {
+    ListVersionsRequest request =
+        ListVersionsRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .build();
+    return listVersions(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all versions in the specified
+   * [Flow][google.cloud.dialogflow.cx.v3beta1.Flow].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   for (Version element : versionsClient.listVersions(parent.toString()).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to list all
+   *     versions for. Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+   *     ID&gt;/agents/&lt;Agent ID&gt;/flows/&lt;Flow ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListVersionsPagedResponse listVersions(String parent) {
+    ListVersionsRequest request = ListVersionsRequest.newBuilder().setParent(parent).build();
+    return listVersions(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all versions in the specified
+   * [Flow][google.cloud.dialogflow.cx.v3beta1.Flow].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   ListVersionsRequest request = ListVersionsRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   for (Version element : versionsClient.listVersions(request).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListVersionsPagedResponse listVersions(ListVersionsRequest request) {
+    return listVersionsPagedCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all versions in the specified
+   * [Flow][google.cloud.dialogflow.cx.v3beta1.Flow].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   ListVersionsRequest request = ListVersionsRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   ApiFuture&lt;ListVersionsPagedResponse&gt; future = versionsClient.listVersionsPagedCallable().futureCall(request);
+   *   // Do something
+   *   for (Version element : future.get().iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<ListVersionsRequest, ListVersionsPagedResponse>
+      listVersionsPagedCallable() {
+    return stub.listVersionsPagedCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all versions in the specified
+   * [Flow][google.cloud.dialogflow.cx.v3beta1.Flow].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   ListVersionsRequest request = ListVersionsRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   while (true) {
+   *     ListVersionsResponse response = versionsClient.listVersionsCallable().call(request);
+   *     for (Version element : response.getVersionsList()) {
+   *       // doThingsWith(element);
+   *     }
+   *     String nextPageToken = response.getNextPageToken();
+   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
+   *       request = request.toBuilder().setPageToken(nextPageToken).build();
+   *     } else {
+   *       break;
+   *     }
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<ListVersionsRequest, ListVersionsResponse> listVersionsCallable() {
+    return stub.listVersionsCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   VersionName name = VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+   *   Version response = versionsClient.getVersion(name);
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+   *     Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Version getVersion(VersionName name) {
+    GetVersionRequest request =
+        GetVersionRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    return getVersion(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   VersionName name = VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+   *   Version response = versionsClient.getVersion(name.toString());
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+   *     Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Version getVersion(String name) {
+    GetVersionRequest request = GetVersionRequest.newBuilder().setName(name).build();
+    return getVersion(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   VersionName name = VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+   *   GetVersionRequest request = GetVersionRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   Version response = versionsClient.getVersion(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Version getVersion(GetVersionRequest request) {
+    return getVersionCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   VersionName name = VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+   *   GetVersionRequest request = GetVersionRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;Version&gt; future = versionsClient.getVersionCallable().futureCall(request);
+   *   // Do something
+   *   Version response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<GetVersionRequest, Version> getVersionCallable() {
+    return stub.getVersionCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates a [Version][google.cloud.dialogflow.cx.v3beta1.Version] in the specified
+   * [Flow][google.cloud.dialogflow.cx.v3beta1.Flow].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   Version version = Version.newBuilder().build();
+   *   Version response = versionsClient.createVersionAsync(parent, version).get();
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to create an
+   *     [Version][google.cloud.dialogflow.cx.v3beta1.Version] for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/flows/&lt;Flow ID&gt;`.
+   * @param version Required. The version to create.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public final OperationFuture<Version, CreateVersionOperationMetadata> createVersionAsync(
+      FlowName parent, Version version) {
+    CreateVersionRequest request =
+        CreateVersionRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .setVersion(version)
+            .build();
+    return createVersionAsync(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates a [Version][google.cloud.dialogflow.cx.v3beta1.Version] in the specified
+   * [Flow][google.cloud.dialogflow.cx.v3beta1.Flow].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   Version version = Version.newBuilder().build();
+   *   Version response = versionsClient.createVersionAsync(parent.toString(), version).get();
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to create an
+   *     [Version][google.cloud.dialogflow.cx.v3beta1.Version] for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/flows/&lt;Flow ID&gt;`.
+   * @param version Required. The version to create.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public final OperationFuture<Version, CreateVersionOperationMetadata> createVersionAsync(
+      String parent, Version version) {
+    CreateVersionRequest request =
+        CreateVersionRequest.newBuilder().setParent(parent).setVersion(version).build();
+    return createVersionAsync(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates a [Version][google.cloud.dialogflow.cx.v3beta1.Version] in the specified
+   * [Flow][google.cloud.dialogflow.cx.v3beta1.Flow].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   Version version = Version.newBuilder().build();
+   *   CreateVersionRequest request = CreateVersionRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .setVersion(version)
+   *     .build();
+   *   Version response = versionsClient.createVersionAsync(request).get();
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public final OperationFuture<Version, CreateVersionOperationMetadata> createVersionAsync(
+      CreateVersionRequest request) {
+    return createVersionOperationCallable().futureCall(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates a [Version][google.cloud.dialogflow.cx.v3beta1.Version] in the specified
+   * [Flow][google.cloud.dialogflow.cx.v3beta1.Flow].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   Version version = Version.newBuilder().build();
+   *   CreateVersionRequest request = CreateVersionRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .setVersion(version)
+   *     .build();
+   *   OperationFuture&lt;Version, CreateVersionOperationMetadata&gt; future = versionsClient.createVersionOperationCallable().futureCall(request);
+   *   // Do something
+   *   Version response = future.get();
+   * }
+   * </code></pre>
+   */
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public final OperationCallable<CreateVersionRequest, Version, CreateVersionOperationMetadata>
+      createVersionOperationCallable() {
+    return stub.createVersionOperationCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates a [Version][google.cloud.dialogflow.cx.v3beta1.Version] in the specified
+   * [Flow][google.cloud.dialogflow.cx.v3beta1.Flow].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+   *   Version version = Version.newBuilder().build();
+   *   CreateVersionRequest request = CreateVersionRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .setVersion(version)
+   *     .build();
+   *   ApiFuture&lt;Operation&gt; future = versionsClient.createVersionCallable().futureCall(request);
+   *   // Do something
+   *   Operation response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<CreateVersionRequest, Operation> createVersionCallable() {
+    return stub.createVersionCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   Version version = Version.newBuilder().build();
+   *   FieldMask updateMask = FieldMask.newBuilder().build();
+   *   Version response = versionsClient.updateVersion(version, updateMask);
+   * }
+   * </code></pre>
+   *
+   * @param version Required. The version to update.
+   * @param updateMask Required. The mask to control which fields get updated. Currently only
+   *     `description` and `display_name` can be updated.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Version updateVersion(Version version, FieldMask updateMask) {
+    UpdateVersionRequest request =
+        UpdateVersionRequest.newBuilder().setVersion(version).setUpdateMask(updateMask).build();
+    return updateVersion(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   Version version = Version.newBuilder().build();
+   *   FieldMask updateMask = FieldMask.newBuilder().build();
+   *   UpdateVersionRequest request = UpdateVersionRequest.newBuilder()
+   *     .setVersion(version)
+   *     .setUpdateMask(updateMask)
+   *     .build();
+   *   Version response = versionsClient.updateVersion(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Version updateVersion(UpdateVersionRequest request) {
+    return updateVersionCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   Version version = Version.newBuilder().build();
+   *   FieldMask updateMask = FieldMask.newBuilder().build();
+   *   UpdateVersionRequest request = UpdateVersionRequest.newBuilder()
+   *     .setVersion(version)
+   *     .setUpdateMask(updateMask)
+   *     .build();
+   *   ApiFuture&lt;Version&gt; future = versionsClient.updateVersionCallable().futureCall(request);
+   *   // Do something
+   *   Version response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<UpdateVersionRequest, Version> updateVersionCallable() {
+    return stub.updateVersionCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   VersionName name = VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+   *   versionsClient.deleteVersion(name);
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version] to
+   *     delete. Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteVersion(VersionName name) {
+    DeleteVersionRequest request =
+        DeleteVersionRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    deleteVersion(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   VersionName name = VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+   *   versionsClient.deleteVersion(name.toString());
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version] to
+   *     delete. Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   *     ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteVersion(String name) {
+    DeleteVersionRequest request = DeleteVersionRequest.newBuilder().setName(name).build();
+    deleteVersion(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   VersionName name = VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+   *   DeleteVersionRequest request = DeleteVersionRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   versionsClient.deleteVersion(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteVersion(DeleteVersionRequest request) {
+    deleteVersionCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   VersionName name = VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+   *   DeleteVersionRequest request = DeleteVersionRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;Void&gt; future = versionsClient.deleteVersionCallable().futureCall(request);
+   *   // Do something
+   *   future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<DeleteVersionRequest, Empty> deleteVersionCallable() {
+    return stub.deleteVersionCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Loads a specified version to draft version.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   VersionName name = VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+   *   versionsClient.loadVersionAsync(name).get();
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The [Version][google.cloud.dialogflow.cx.v3beta1.Version] to be loaded to
+   *     draft version. Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+   *     ID&gt;/agents/&lt;Agent ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public final OperationFuture<Empty, Struct> loadVersionAsync(VersionName name) {
+    LoadVersionRequest request =
+        LoadVersionRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    return loadVersionAsync(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Loads a specified version to draft version.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   VersionName name = VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+   *   versionsClient.loadVersionAsync(name.toString()).get();
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The [Version][google.cloud.dialogflow.cx.v3beta1.Version] to be loaded to
+   *     draft version. Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+   *     ID&gt;/agents/&lt;Agent ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public final OperationFuture<Empty, Struct> loadVersionAsync(String name) {
+    LoadVersionRequest request = LoadVersionRequest.newBuilder().setName(name).build();
+    return loadVersionAsync(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Loads a specified version to draft version.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   VersionName name = VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+   *   LoadVersionRequest request = LoadVersionRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   versionsClient.loadVersionAsync(request).get();
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public final OperationFuture<Empty, Struct> loadVersionAsync(LoadVersionRequest request) {
+    return loadVersionOperationCallable().futureCall(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Loads a specified version to draft version.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   VersionName name = VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+   *   LoadVersionRequest request = LoadVersionRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   OperationFuture&lt;Empty, Struct&gt; future = versionsClient.loadVersionOperationCallable().futureCall(request);
+   *   // Do something
+   *   future.get();
+   * }
+   * </code></pre>
+   */
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public final OperationCallable<LoadVersionRequest, Empty, Struct> loadVersionOperationCallable() {
+    return stub.loadVersionOperationCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Loads a specified version to draft version.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   VersionName name = VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+   *   LoadVersionRequest request = LoadVersionRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;Operation&gt; future = versionsClient.loadVersionCallable().futureCall(request);
+   *   // Do something
+   *   future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<LoadVersionRequest, Operation> loadVersionCallable() {
+    return stub.loadVersionCallable();
+  }
+
+  @Override
+  public final void close() {
+    stub.close();
+  }
+
+  @Override
+  public void shutdown() {
+    stub.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return stub.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return stub.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    stub.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return stub.awaitTermination(duration, unit);
+  }
+
+  public static class ListVersionsPagedResponse
+      extends AbstractPagedListResponse<
+          ListVersionsRequest,
+          ListVersionsResponse,
+          Version,
+          ListVersionsPage,
+          ListVersionsFixedSizeCollection> {
+
+    public static ApiFuture<ListVersionsPagedResponse> createAsync(
+        PageContext<ListVersionsRequest, ListVersionsResponse, Version> context,
+        ApiFuture<ListVersionsResponse> futureResponse) {
+      ApiFuture<ListVersionsPage> futurePage =
+          ListVersionsPage.createEmptyPage().createPageAsync(context, futureResponse);
+      return ApiFutures.transform(
+          futurePage,
+          new ApiFunction<ListVersionsPage, ListVersionsPagedResponse>() {
+            @Override
+            public ListVersionsPagedResponse apply(ListVersionsPage input) {
+              return new ListVersionsPagedResponse(input);
+            }
+          },
+          MoreExecutors.directExecutor());
+    }
+
+    private ListVersionsPagedResponse(ListVersionsPage page) {
+      super(page, ListVersionsFixedSizeCollection.createEmptyCollection());
+    }
+  }
+
+  public static class ListVersionsPage
+      extends AbstractPage<ListVersionsRequest, ListVersionsResponse, Version, ListVersionsPage> {
+
+    private ListVersionsPage(
+        PageContext<ListVersionsRequest, ListVersionsResponse, Version> context,
+        ListVersionsResponse response) {
+      super(context, response);
+    }
+
+    private static ListVersionsPage createEmptyPage() {
+      return new ListVersionsPage(null, null);
+    }
+
+    @Override
+    protected ListVersionsPage createPage(
+        PageContext<ListVersionsRequest, ListVersionsResponse, Version> context,
+        ListVersionsResponse response) {
+      return new ListVersionsPage(context, response);
+    }
+
+    @Override
+    public ApiFuture<ListVersionsPage> createPageAsync(
+        PageContext<ListVersionsRequest, ListVersionsResponse, Version> context,
+        ApiFuture<ListVersionsResponse> futureResponse) {
+      return super.createPageAsync(context, futureResponse);
+    }
+  }
+
+  public static class ListVersionsFixedSizeCollection
+      extends AbstractFixedSizeCollection<
+          ListVersionsRequest,
+          ListVersionsResponse,
+          Version,
+          ListVersionsPage,
+          ListVersionsFixedSizeCollection> {
+
+    private ListVersionsFixedSizeCollection(List<ListVersionsPage> pages, int collectionSize) {
+      super(pages, collectionSize);
+    }
+
+    private static ListVersionsFixedSizeCollection createEmptyCollection() {
+      return new ListVersionsFixedSizeCollection(null, 0);
+    }
+
+    @Override
+    protected ListVersionsFixedSizeCollection createCollection(
+        List<ListVersionsPage> pages, int collectionSize) {
+      return new ListVersionsFixedSizeCollection(pages, collectionSize);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VersionsSettings.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VersionsSettings.java
new file mode 100644
index 000000000..d4d987539
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VersionsSettings.java
@@ -0,0 +1,270 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.VersionsClient.ListVersionsPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientSettings;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.VersionsStubSettings;
+import com.google.longrunning.Operation;
+import com.google.protobuf.Empty;
+import com.google.protobuf.Struct;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Settings class to configure an instance of {@link VersionsClient}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getVersion to 30 seconds:
+ *
+ * <pre>
+ * <code>
+ * VersionsSettings.Builder versionsSettingsBuilder =
+ *     VersionsSettings.newBuilder();
+ * versionsSettingsBuilder
+ *     .getVersionSettings()
+ *     .setRetrySettings(
+ *         versionsSettingsBuilder.getVersionSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * VersionsSettings versionsSettings = versionsSettingsBuilder.build();
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class VersionsSettings extends ClientSettings<VersionsSettings> {
+  /** Returns the object with the settings used for calls to listVersions. */
+  public PagedCallSettings<ListVersionsRequest, ListVersionsResponse, ListVersionsPagedResponse>
+      listVersionsSettings() {
+    return ((VersionsStubSettings) getStubSettings()).listVersionsSettings();
+  }
+
+  /** Returns the object with the settings used for calls to getVersion. */
+  public UnaryCallSettings<GetVersionRequest, Version> getVersionSettings() {
+    return ((VersionsStubSettings) getStubSettings()).getVersionSettings();
+  }
+
+  /** Returns the object with the settings used for calls to createVersion. */
+  public UnaryCallSettings<CreateVersionRequest, Operation> createVersionSettings() {
+    return ((VersionsStubSettings) getStubSettings()).createVersionSettings();
+  }
+
+  /** Returns the object with the settings used for calls to createVersion. */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public OperationCallSettings<CreateVersionRequest, Version, CreateVersionOperationMetadata>
+      createVersionOperationSettings() {
+    return ((VersionsStubSettings) getStubSettings()).createVersionOperationSettings();
+  }
+
+  /** Returns the object with the settings used for calls to updateVersion. */
+  public UnaryCallSettings<UpdateVersionRequest, Version> updateVersionSettings() {
+    return ((VersionsStubSettings) getStubSettings()).updateVersionSettings();
+  }
+
+  /** Returns the object with the settings used for calls to deleteVersion. */
+  public UnaryCallSettings<DeleteVersionRequest, Empty> deleteVersionSettings() {
+    return ((VersionsStubSettings) getStubSettings()).deleteVersionSettings();
+  }
+
+  /** Returns the object with the settings used for calls to loadVersion. */
+  public UnaryCallSettings<LoadVersionRequest, Operation> loadVersionSettings() {
+    return ((VersionsStubSettings) getStubSettings()).loadVersionSettings();
+  }
+
+  /** Returns the object with the settings used for calls to loadVersion. */
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  public OperationCallSettings<LoadVersionRequest, Empty, Struct> loadVersionOperationSettings() {
+    return ((VersionsStubSettings) getStubSettings()).loadVersionOperationSettings();
+  }
+
+  public static final VersionsSettings create(VersionsStubSettings stub) throws IOException {
+    return new VersionsSettings.Builder(stub.toBuilder()).build();
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return VersionsStubSettings.defaultExecutorProviderBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return VersionsStubSettings.getDefaultEndpoint();
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return VersionsStubSettings.getDefaultServiceScopes();
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return VersionsStubSettings.defaultCredentialsProviderBuilder();
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return VersionsStubSettings.defaultGrpcTransportProviderBuilder();
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return VersionsStubSettings.defaultTransportChannelProvider();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return VersionsStubSettings.defaultApiClientHeaderProviderBuilder();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected VersionsSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+  }
+
+  /** Builder for VersionsSettings. */
+  public static class Builder extends ClientSettings.Builder<VersionsSettings, Builder> {
+    protected Builder() throws IOException {
+      this((ClientContext) null);
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(VersionsStubSettings.newBuilder(clientContext));
+    }
+
+    private static Builder createDefault() {
+      return new Builder(VersionsStubSettings.newBuilder());
+    }
+
+    protected Builder(VersionsSettings settings) {
+      super(settings.getStubSettings().toBuilder());
+    }
+
+    protected Builder(VersionsStubSettings.Builder stubSettings) {
+      super(stubSettings);
+    }
+
+    public VersionsStubSettings.Builder getStubSettingsBuilder() {
+      return ((VersionsStubSettings.Builder) getStubSettings());
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(
+          getStubSettingsBuilder().unaryMethodSettingsBuilders(), settingsUpdater);
+      return this;
+    }
+
+    /** Returns the builder for the settings used for calls to listVersions. */
+    public PagedCallSettings.Builder<
+            ListVersionsRequest, ListVersionsResponse, ListVersionsPagedResponse>
+        listVersionsSettings() {
+      return getStubSettingsBuilder().listVersionsSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to getVersion. */
+    public UnaryCallSettings.Builder<GetVersionRequest, Version> getVersionSettings() {
+      return getStubSettingsBuilder().getVersionSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to createVersion. */
+    public UnaryCallSettings.Builder<CreateVersionRequest, Operation> createVersionSettings() {
+      return getStubSettingsBuilder().createVersionSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to createVersion. */
+    @BetaApi(
+        "The surface for long-running operations is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<
+            CreateVersionRequest, Version, CreateVersionOperationMetadata>
+        createVersionOperationSettings() {
+      return getStubSettingsBuilder().createVersionOperationSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to updateVersion. */
+    public UnaryCallSettings.Builder<UpdateVersionRequest, Version> updateVersionSettings() {
+      return getStubSettingsBuilder().updateVersionSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to deleteVersion. */
+    public UnaryCallSettings.Builder<DeleteVersionRequest, Empty> deleteVersionSettings() {
+      return getStubSettingsBuilder().deleteVersionSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to loadVersion. */
+    public UnaryCallSettings.Builder<LoadVersionRequest, Operation> loadVersionSettings() {
+      return getStubSettingsBuilder().loadVersionSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to loadVersion. */
+    @BetaApi(
+        "The surface for long-running operations is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<LoadVersionRequest, Empty, Struct>
+        loadVersionOperationSettings() {
+      return getStubSettingsBuilder().loadVersionOperationSettings();
+    }
+
+    @Override
+    public VersionsSettings build() throws IOException {
+      return new VersionsSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhooksClient.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhooksClient.java
new file mode 100644
index 000000000..fac122291
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhooksClient.java
@@ -0,0 +1,749 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.ApiFutures;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.paging.AbstractFixedSizeCollection;
+import com.google.api.gax.paging.AbstractPage;
+import com.google.api.gax.paging.AbstractPagedListResponse;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.WebhooksStub;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.WebhooksStubSettings;
+import com.google.common.util.concurrent.MoreExecutors;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import java.io.IOException;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND SERVICE
+/**
+ * Service Description: Service for managing [Webhooks][google.cloud.dialogflow.cx.v3beta1.Webhook].
+ *
+ * <p>This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * <pre>
+ * <code>
+ * try (WebhooksClient webhooksClient = WebhooksClient.create()) {
+ *   WebhookName name = WebhookName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[WEBHOOK]");
+ *   Webhook response = webhooksClient.getWebhook(name);
+ * }
+ * </code>
+ * </pre>
+ *
+ * <p>Note: close() needs to be called on the webhooksClient object to clean up resources such as
+ * threads. In the example above, try-with-resources is used, which automatically calls close().
+ *
+ * <p>The surface of this class includes several types of Java methods for each of the API's
+ * methods:
+ *
+ * <ol>
+ *   <li>A "flattened" method. With this type of method, the fields of the request type have been
+ *       converted into function parameters. It may be the case that not all fields are available as
+ *       parameters, and not every API method will have a flattened method entry point.
+ *   <li>A "request object" method. This type of method only takes one parameter, a request object,
+ *       which must be constructed before the call. Not every API method will have a request object
+ *       method.
+ *   <li>A "callable" method. This type of method takes no parameters and returns an immutable API
+ *       callable object, which can be used to initiate calls to the service.
+ * </ol>
+ *
+ * <p>See the individual methods for example code.
+ *
+ * <p>Many parameters require resource names to be formatted in a particular way. To assist with
+ * these names, this class includes a format method for each type of name, and additionally a parse
+ * method to extract the individual identifiers contained within names that are returned.
+ *
+ * <p>This class can be customized by passing in a custom instance of WebhooksSettings to create().
+ * For example:
+ *
+ * <p>To customize credentials:
+ *
+ * <pre>
+ * <code>
+ * WebhooksSettings webhooksSettings =
+ *     WebhooksSettings.newBuilder()
+ *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
+ *         .build();
+ * WebhooksClient webhooksClient =
+ *     WebhooksClient.create(webhooksSettings);
+ * </code>
+ * </pre>
+ *
+ * To customize the endpoint:
+ *
+ * <pre>
+ * <code>
+ * WebhooksSettings webhooksSettings =
+ *     WebhooksSettings.newBuilder().setEndpoint(myEndpoint).build();
+ * WebhooksClient webhooksClient =
+ *     WebhooksClient.create(webhooksSettings);
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class WebhooksClient implements BackgroundResource {
+  private final WebhooksSettings settings;
+  private final WebhooksStub stub;
+
+  /** Constructs an instance of WebhooksClient with default settings. */
+  public static final WebhooksClient create() throws IOException {
+    return create(WebhooksSettings.newBuilder().build());
+  }
+
+  /**
+   * Constructs an instance of WebhooksClient, using the given settings. The channels are created
+   * based on the settings passed in, or defaults for any settings that are not set.
+   */
+  public static final WebhooksClient create(WebhooksSettings settings) throws IOException {
+    return new WebhooksClient(settings);
+  }
+
+  /**
+   * Constructs an instance of WebhooksClient, using the given stub for making calls. This is for
+   * advanced usage - prefer to use WebhooksSettings}.
+   */
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public static final WebhooksClient create(WebhooksStub stub) {
+    return new WebhooksClient(stub);
+  }
+
+  /**
+   * Constructs an instance of WebhooksClient, using the given settings. This is protected so that
+   * it is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected WebhooksClient(WebhooksSettings settings) throws IOException {
+    this.settings = settings;
+    this.stub = ((WebhooksStubSettings) settings.getStubSettings()).createStub();
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  protected WebhooksClient(WebhooksStub stub) {
+    this.settings = null;
+    this.stub = stub;
+  }
+
+  public final WebhooksSettings getSettings() {
+    return settings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public WebhooksStub getStub() {
+    return stub;
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all webhooks in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (WebhooksClient webhooksClient = WebhooksClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   for (Webhook element : webhooksClient.listWebhooks(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The agent to list all webhooks for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListWebhooksPagedResponse listWebhooks(AgentName parent) {
+    ListWebhooksRequest request =
+        ListWebhooksRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .build();
+    return listWebhooks(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all webhooks in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (WebhooksClient webhooksClient = WebhooksClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   for (Webhook element : webhooksClient.listWebhooks(parent.toString()).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The agent to list all webhooks for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListWebhooksPagedResponse listWebhooks(String parent) {
+    ListWebhooksRequest request = ListWebhooksRequest.newBuilder().setParent(parent).build();
+    return listWebhooks(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all webhooks in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (WebhooksClient webhooksClient = WebhooksClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   ListWebhooksRequest request = ListWebhooksRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   for (Webhook element : webhooksClient.listWebhooks(request).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListWebhooksPagedResponse listWebhooks(ListWebhooksRequest request) {
+    return listWebhooksPagedCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all webhooks in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (WebhooksClient webhooksClient = WebhooksClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   ListWebhooksRequest request = ListWebhooksRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   ApiFuture&lt;ListWebhooksPagedResponse&gt; future = webhooksClient.listWebhooksPagedCallable().futureCall(request);
+   *   // Do something
+   *   for (Webhook element : future.get().iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<ListWebhooksRequest, ListWebhooksPagedResponse>
+      listWebhooksPagedCallable() {
+    return stub.listWebhooksPagedCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Returns the list of all webhooks in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (WebhooksClient webhooksClient = WebhooksClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   ListWebhooksRequest request = ListWebhooksRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .build();
+   *   while (true) {
+   *     ListWebhooksResponse response = webhooksClient.listWebhooksCallable().call(request);
+   *     for (Webhook element : response.getWebhooksList()) {
+   *       // doThingsWith(element);
+   *     }
+   *     String nextPageToken = response.getNextPageToken();
+   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
+   *       request = request.toBuilder().setPageToken(nextPageToken).build();
+   *     } else {
+   *       break;
+   *     }
+   *   }
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<ListWebhooksRequest, ListWebhooksResponse> listWebhooksCallable() {
+    return stub.listWebhooksCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified webhook.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (WebhooksClient webhooksClient = WebhooksClient.create()) {
+   *   WebhookName name = WebhookName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[WEBHOOK]");
+   *   Webhook response = webhooksClient.getWebhook(name);
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the webhook. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Webhook getWebhook(WebhookName name) {
+    GetWebhookRequest request =
+        GetWebhookRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    return getWebhook(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified webhook.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (WebhooksClient webhooksClient = WebhooksClient.create()) {
+   *   WebhookName name = WebhookName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[WEBHOOK]");
+   *   Webhook response = webhooksClient.getWebhook(name.toString());
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the webhook. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Webhook getWebhook(String name) {
+    GetWebhookRequest request = GetWebhookRequest.newBuilder().setName(name).build();
+    return getWebhook(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified webhook.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (WebhooksClient webhooksClient = WebhooksClient.create()) {
+   *   WebhookName name = WebhookName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[WEBHOOK]");
+   *   GetWebhookRequest request = GetWebhookRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   Webhook response = webhooksClient.getWebhook(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Webhook getWebhook(GetWebhookRequest request) {
+    return getWebhookCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Retrieves the specified webhook.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (WebhooksClient webhooksClient = WebhooksClient.create()) {
+   *   WebhookName name = WebhookName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[WEBHOOK]");
+   *   GetWebhookRequest request = GetWebhookRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;Webhook&gt; future = webhooksClient.getWebhookCallable().futureCall(request);
+   *   // Do something
+   *   Webhook response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<GetWebhookRequest, Webhook> getWebhookCallable() {
+    return stub.getWebhookCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates a webhook in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (WebhooksClient webhooksClient = WebhooksClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   Webhook webhook = Webhook.newBuilder().build();
+   *   Webhook response = webhooksClient.createWebhook(parent, webhook);
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The agent to create a webhook for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @param webhook Required. The webhook to create.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Webhook createWebhook(AgentName parent, Webhook webhook) {
+    CreateWebhookRequest request =
+        CreateWebhookRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .setWebhook(webhook)
+            .build();
+    return createWebhook(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates a webhook in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (WebhooksClient webhooksClient = WebhooksClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   Webhook webhook = Webhook.newBuilder().build();
+   *   Webhook response = webhooksClient.createWebhook(parent.toString(), webhook);
+   * }
+   * </code></pre>
+   *
+   * @param parent Required. The agent to create a webhook for. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * @param webhook Required. The webhook to create.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Webhook createWebhook(String parent, Webhook webhook) {
+    CreateWebhookRequest request =
+        CreateWebhookRequest.newBuilder().setParent(parent).setWebhook(webhook).build();
+    return createWebhook(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates a webhook in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (WebhooksClient webhooksClient = WebhooksClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   Webhook webhook = Webhook.newBuilder().build();
+   *   CreateWebhookRequest request = CreateWebhookRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .setWebhook(webhook)
+   *     .build();
+   *   Webhook response = webhooksClient.createWebhook(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Webhook createWebhook(CreateWebhookRequest request) {
+    return createWebhookCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Creates a webhook in the specified agent.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (WebhooksClient webhooksClient = WebhooksClient.create()) {
+   *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+   *   Webhook webhook = Webhook.newBuilder().build();
+   *   CreateWebhookRequest request = CreateWebhookRequest.newBuilder()
+   *     .setParent(parent.toString())
+   *     .setWebhook(webhook)
+   *     .build();
+   *   ApiFuture&lt;Webhook&gt; future = webhooksClient.createWebhookCallable().futureCall(request);
+   *   // Do something
+   *   Webhook response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<CreateWebhookRequest, Webhook> createWebhookCallable() {
+    return stub.createWebhookCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified webhook.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (WebhooksClient webhooksClient = WebhooksClient.create()) {
+   *   Webhook webhook = Webhook.newBuilder().build();
+   *   FieldMask updateMask = FieldMask.newBuilder().build();
+   *   Webhook response = webhooksClient.updateWebhook(webhook, updateMask);
+   * }
+   * </code></pre>
+   *
+   * @param webhook Required. The webhook to update.
+   * @param updateMask The mask to control which fields get updated. If the mask is not present, all
+   *     fields will be updated.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Webhook updateWebhook(Webhook webhook, FieldMask updateMask) {
+    UpdateWebhookRequest request =
+        UpdateWebhookRequest.newBuilder().setWebhook(webhook).setUpdateMask(updateMask).build();
+    return updateWebhook(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified webhook.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (WebhooksClient webhooksClient = WebhooksClient.create()) {
+   *   Webhook webhook = Webhook.newBuilder().build();
+   *   UpdateWebhookRequest request = UpdateWebhookRequest.newBuilder()
+   *     .setWebhook(webhook)
+   *     .build();
+   *   Webhook response = webhooksClient.updateWebhook(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Webhook updateWebhook(UpdateWebhookRequest request) {
+    return updateWebhookCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Updates the specified webhook.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (WebhooksClient webhooksClient = WebhooksClient.create()) {
+   *   Webhook webhook = Webhook.newBuilder().build();
+   *   UpdateWebhookRequest request = UpdateWebhookRequest.newBuilder()
+   *     .setWebhook(webhook)
+   *     .build();
+   *   ApiFuture&lt;Webhook&gt; future = webhooksClient.updateWebhookCallable().futureCall(request);
+   *   // Do something
+   *   Webhook response = future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<UpdateWebhookRequest, Webhook> updateWebhookCallable() {
+    return stub.updateWebhookCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified webhook.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (WebhooksClient webhooksClient = WebhooksClient.create()) {
+   *   WebhookName name = WebhookName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[WEBHOOK]");
+   *   webhooksClient.deleteWebhook(name);
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the webhook to delete. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteWebhook(WebhookName name) {
+    DeleteWebhookRequest request =
+        DeleteWebhookRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    deleteWebhook(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified webhook.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (WebhooksClient webhooksClient = WebhooksClient.create()) {
+   *   WebhookName name = WebhookName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[WEBHOOK]");
+   *   webhooksClient.deleteWebhook(name.toString());
+   * }
+   * </code></pre>
+   *
+   * @param name Required. The name of the webhook to delete. Format: `projects/&lt;Project
+   *     ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteWebhook(String name) {
+    DeleteWebhookRequest request = DeleteWebhookRequest.newBuilder().setName(name).build();
+    deleteWebhook(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified webhook.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (WebhooksClient webhooksClient = WebhooksClient.create()) {
+   *   WebhookName name = WebhookName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[WEBHOOK]");
+   *   DeleteWebhookRequest request = DeleteWebhookRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   webhooksClient.deleteWebhook(request);
+   * }
+   * </code></pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteWebhook(DeleteWebhookRequest request) {
+    deleteWebhookCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD
+  /**
+   * Deletes the specified webhook.
+   *
+   * <p>Sample code:
+   *
+   * <pre><code>
+   * try (WebhooksClient webhooksClient = WebhooksClient.create()) {
+   *   WebhookName name = WebhookName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[WEBHOOK]");
+   *   DeleteWebhookRequest request = DeleteWebhookRequest.newBuilder()
+   *     .setName(name.toString())
+   *     .build();
+   *   ApiFuture&lt;Void&gt; future = webhooksClient.deleteWebhookCallable().futureCall(request);
+   *   // Do something
+   *   future.get();
+   * }
+   * </code></pre>
+   */
+  public final UnaryCallable<DeleteWebhookRequest, Empty> deleteWebhookCallable() {
+    return stub.deleteWebhookCallable();
+  }
+
+  @Override
+  public final void close() {
+    stub.close();
+  }
+
+  @Override
+  public void shutdown() {
+    stub.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return stub.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return stub.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    stub.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return stub.awaitTermination(duration, unit);
+  }
+
+  public static class ListWebhooksPagedResponse
+      extends AbstractPagedListResponse<
+          ListWebhooksRequest,
+          ListWebhooksResponse,
+          Webhook,
+          ListWebhooksPage,
+          ListWebhooksFixedSizeCollection> {
+
+    public static ApiFuture<ListWebhooksPagedResponse> createAsync(
+        PageContext<ListWebhooksRequest, ListWebhooksResponse, Webhook> context,
+        ApiFuture<ListWebhooksResponse> futureResponse) {
+      ApiFuture<ListWebhooksPage> futurePage =
+          ListWebhooksPage.createEmptyPage().createPageAsync(context, futureResponse);
+      return ApiFutures.transform(
+          futurePage,
+          new ApiFunction<ListWebhooksPage, ListWebhooksPagedResponse>() {
+            @Override
+            public ListWebhooksPagedResponse apply(ListWebhooksPage input) {
+              return new ListWebhooksPagedResponse(input);
+            }
+          },
+          MoreExecutors.directExecutor());
+    }
+
+    private ListWebhooksPagedResponse(ListWebhooksPage page) {
+      super(page, ListWebhooksFixedSizeCollection.createEmptyCollection());
+    }
+  }
+
+  public static class ListWebhooksPage
+      extends AbstractPage<ListWebhooksRequest, ListWebhooksResponse, Webhook, ListWebhooksPage> {
+
+    private ListWebhooksPage(
+        PageContext<ListWebhooksRequest, ListWebhooksResponse, Webhook> context,
+        ListWebhooksResponse response) {
+      super(context, response);
+    }
+
+    private static ListWebhooksPage createEmptyPage() {
+      return new ListWebhooksPage(null, null);
+    }
+
+    @Override
+    protected ListWebhooksPage createPage(
+        PageContext<ListWebhooksRequest, ListWebhooksResponse, Webhook> context,
+        ListWebhooksResponse response) {
+      return new ListWebhooksPage(context, response);
+    }
+
+    @Override
+    public ApiFuture<ListWebhooksPage> createPageAsync(
+        PageContext<ListWebhooksRequest, ListWebhooksResponse, Webhook> context,
+        ApiFuture<ListWebhooksResponse> futureResponse) {
+      return super.createPageAsync(context, futureResponse);
+    }
+  }
+
+  public static class ListWebhooksFixedSizeCollection
+      extends AbstractFixedSizeCollection<
+          ListWebhooksRequest,
+          ListWebhooksResponse,
+          Webhook,
+          ListWebhooksPage,
+          ListWebhooksFixedSizeCollection> {
+
+    private ListWebhooksFixedSizeCollection(List<ListWebhooksPage> pages, int collectionSize) {
+      super(pages, collectionSize);
+    }
+
+    private static ListWebhooksFixedSizeCollection createEmptyCollection() {
+      return new ListWebhooksFixedSizeCollection(null, 0);
+    }
+
+    @Override
+    protected ListWebhooksFixedSizeCollection createCollection(
+        List<ListWebhooksPage> pages, int collectionSize) {
+      return new ListWebhooksFixedSizeCollection(pages, collectionSize);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhooksSettings.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhooksSettings.java
new file mode 100644
index 000000000..e4545ff91
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhooksSettings.java
@@ -0,0 +1,225 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.WebhooksClient.ListWebhooksPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientSettings;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.cloud.dialogflow.cx.v3beta1.stub.WebhooksStubSettings;
+import com.google.protobuf.Empty;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Settings class to configure an instance of {@link WebhooksClient}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getWebhook to 30 seconds:
+ *
+ * <pre>
+ * <code>
+ * WebhooksSettings.Builder webhooksSettingsBuilder =
+ *     WebhooksSettings.newBuilder();
+ * webhooksSettingsBuilder
+ *     .getWebhookSettings()
+ *     .setRetrySettings(
+ *         webhooksSettingsBuilder.getWebhookSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * WebhooksSettings webhooksSettings = webhooksSettingsBuilder.build();
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class WebhooksSettings extends ClientSettings<WebhooksSettings> {
+  /** Returns the object with the settings used for calls to listWebhooks. */
+  public PagedCallSettings<ListWebhooksRequest, ListWebhooksResponse, ListWebhooksPagedResponse>
+      listWebhooksSettings() {
+    return ((WebhooksStubSettings) getStubSettings()).listWebhooksSettings();
+  }
+
+  /** Returns the object with the settings used for calls to getWebhook. */
+  public UnaryCallSettings<GetWebhookRequest, Webhook> getWebhookSettings() {
+    return ((WebhooksStubSettings) getStubSettings()).getWebhookSettings();
+  }
+
+  /** Returns the object with the settings used for calls to createWebhook. */
+  public UnaryCallSettings<CreateWebhookRequest, Webhook> createWebhookSettings() {
+    return ((WebhooksStubSettings) getStubSettings()).createWebhookSettings();
+  }
+
+  /** Returns the object with the settings used for calls to updateWebhook. */
+  public UnaryCallSettings<UpdateWebhookRequest, Webhook> updateWebhookSettings() {
+    return ((WebhooksStubSettings) getStubSettings()).updateWebhookSettings();
+  }
+
+  /** Returns the object with the settings used for calls to deleteWebhook. */
+  public UnaryCallSettings<DeleteWebhookRequest, Empty> deleteWebhookSettings() {
+    return ((WebhooksStubSettings) getStubSettings()).deleteWebhookSettings();
+  }
+
+  public static final WebhooksSettings create(WebhooksStubSettings stub) throws IOException {
+    return new WebhooksSettings.Builder(stub.toBuilder()).build();
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return WebhooksStubSettings.defaultExecutorProviderBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return WebhooksStubSettings.getDefaultEndpoint();
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return WebhooksStubSettings.getDefaultServiceScopes();
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return WebhooksStubSettings.defaultCredentialsProviderBuilder();
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return WebhooksStubSettings.defaultGrpcTransportProviderBuilder();
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return WebhooksStubSettings.defaultTransportChannelProvider();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return WebhooksStubSettings.defaultApiClientHeaderProviderBuilder();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected WebhooksSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+  }
+
+  /** Builder for WebhooksSettings. */
+  public static class Builder extends ClientSettings.Builder<WebhooksSettings, Builder> {
+    protected Builder() throws IOException {
+      this((ClientContext) null);
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(WebhooksStubSettings.newBuilder(clientContext));
+    }
+
+    private static Builder createDefault() {
+      return new Builder(WebhooksStubSettings.newBuilder());
+    }
+
+    protected Builder(WebhooksSettings settings) {
+      super(settings.getStubSettings().toBuilder());
+    }
+
+    protected Builder(WebhooksStubSettings.Builder stubSettings) {
+      super(stubSettings);
+    }
+
+    public WebhooksStubSettings.Builder getStubSettingsBuilder() {
+      return ((WebhooksStubSettings.Builder) getStubSettings());
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(
+          getStubSettingsBuilder().unaryMethodSettingsBuilders(), settingsUpdater);
+      return this;
+    }
+
+    /** Returns the builder for the settings used for calls to listWebhooks. */
+    public PagedCallSettings.Builder<
+            ListWebhooksRequest, ListWebhooksResponse, ListWebhooksPagedResponse>
+        listWebhooksSettings() {
+      return getStubSettingsBuilder().listWebhooksSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to getWebhook. */
+    public UnaryCallSettings.Builder<GetWebhookRequest, Webhook> getWebhookSettings() {
+      return getStubSettingsBuilder().getWebhookSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to createWebhook. */
+    public UnaryCallSettings.Builder<CreateWebhookRequest, Webhook> createWebhookSettings() {
+      return getStubSettingsBuilder().createWebhookSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to updateWebhook. */
+    public UnaryCallSettings.Builder<UpdateWebhookRequest, Webhook> updateWebhookSettings() {
+      return getStubSettingsBuilder().updateWebhookSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to deleteWebhook. */
+    public UnaryCallSettings.Builder<DeleteWebhookRequest, Empty> deleteWebhookSettings() {
+      return getStubSettingsBuilder().deleteWebhookSettings();
+    }
+
+    @Override
+    public WebhooksSettings build() throws IOException {
+      return new WebhooksSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/package-info.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/package-info.java
new file mode 100644
index 000000000..69e3355f5
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/package-info.java
@@ -0,0 +1,205 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * A client to Dialogflow API.
+ *
+ * <p>The interfaces provided are listed below, along with usage samples.
+ *
+ * <p>=========== PagesClient ===========
+ *
+ * <p>Service Description: Service for managing [Pages][google.cloud.dialogflow.cx.v3beta1.Page].
+ *
+ * <p>Sample for PagesClient:
+ *
+ * <pre>
+ * <code>
+ * try (PagesClient pagesClient = PagesClient.create()) {
+ *   PageName name = PageName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[PAGE]");
+ *   Page response = pagesClient.getPage(name);
+ * }
+ * </code>
+ * </pre>
+ *
+ * =========== FlowsClient ===========
+ *
+ * <p>Service Description: Service for managing [Flows][google.cloud.dialogflow.cx.v3beta1.Flow].
+ *
+ * <p>Sample for FlowsClient:
+ *
+ * <pre>
+ * <code>
+ * try (FlowsClient flowsClient = FlowsClient.create()) {
+ *   AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+ *   Flow flow = Flow.newBuilder().build();
+ *   Flow response = flowsClient.createFlow(parent, flow);
+ * }
+ * </code>
+ * </pre>
+ *
+ * ============ AgentsClient ============
+ *
+ * <p>Service Description: Service for managing [Agents][google.cloud.dialogflow.cx.v3beta1.Agent].
+ *
+ * <p>Sample for AgentsClient:
+ *
+ * <pre>
+ * <code>
+ * try (AgentsClient agentsClient = AgentsClient.create()) {
+ *   AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+ *   Agent response = agentsClient.getAgent(name);
+ * }
+ * </code>
+ * </pre>
+ *
+ * ================= EntityTypesClient =================
+ *
+ * <p>Service Description: Service for managing
+ * [EntityTypes][google.cloud.dialogflow.cx.v3beta1.EntityType].
+ *
+ * <p>Sample for EntityTypesClient:
+ *
+ * <pre>
+ * <code>
+ * try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
+ *   EntityTypeName name = EntityTypeName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENTITY_TYPE]");
+ *   EntityType response = entityTypesClient.getEntityType(name);
+ * }
+ * </code>
+ * </pre>
+ *
+ * ================== EnvironmentsClient ==================
+ *
+ * <p>Service Description: Service for managing
+ * [Environments][google.cloud.dialogflow.cx.v3beta1.Environment].
+ *
+ * <p>Sample for EnvironmentsClient:
+ *
+ * <pre>
+ * <code>
+ * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+ *   EnvironmentName name = EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+ *   Environment response = environmentsClient.getEnvironment(name);
+ * }
+ * </code>
+ * </pre>
+ *
+ * ============= IntentsClient =============
+ *
+ * <p>Service Description: Service for managing
+ * [Intents][google.cloud.dialogflow.cx.v3beta1.Intent].
+ *
+ * <p>Sample for IntentsClient:
+ *
+ * <pre>
+ * <code>
+ * try (IntentsClient intentsClient = IntentsClient.create()) {
+ *   IntentName name = IntentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[INTENT]");
+ *   Intent response = intentsClient.getIntent(name);
+ * }
+ * </code>
+ * </pre>
+ *
+ * ======================== SessionEntityTypesClient ========================
+ *
+ * <p>Service Description: Service for managing
+ * [SessionEntityTypes][google.cloud.dialogflow.cx.v3beta1.SessionEntityType].
+ *
+ * <p>Sample for SessionEntityTypesClient:
+ *
+ * <pre>
+ * <code>
+ * try (SessionEntityTypesClient sessionEntityTypesClient = SessionEntityTypesClient.create()) {
+ *   SessionEntityTypeName name = SessionEntityTypeName.ofProjectLocationAgentSessionEntityTypeName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]", "[ENTITY_TYPE]");
+ *   SessionEntityType response = sessionEntityTypesClient.getSessionEntityType(name);
+ * }
+ * </code>
+ * </pre>
+ *
+ * ============== SessionsClient ==============
+ *
+ * <p>Service Description: A session represents an interaction with a user. You retrieve user input
+ * and pass it to the [DetectIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.DetectIntent]
+ * method to determine user intent and respond.
+ *
+ * <p>Sample for SessionsClient:
+ *
+ * <pre>
+ * <code>
+ * try (SessionsClient sessionsClient = SessionsClient.create()) {
+ *   SessionName session = SessionName.ofProjectLocationAgentSessionName("[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+ *   QueryInput queryInput = QueryInput.newBuilder().build();
+ *   DetectIntentRequest request = DetectIntentRequest.newBuilder()
+ *     .setSession(session.toString())
+ *     .setQueryInput(queryInput)
+ *     .build();
+ *   DetectIntentResponse response = sessionsClient.detectIntent(request);
+ * }
+ * </code>
+ * </pre>
+ *
+ * =========================== TransitionRouteGroupsClient ===========================
+ *
+ * <p>Service Description: Service for managing
+ * [TransitionRouteGroups][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+ *
+ * <p>Sample for TransitionRouteGroupsClient:
+ *
+ * <pre>
+ * <code>
+ * try (TransitionRouteGroupsClient transitionRouteGroupsClient = TransitionRouteGroupsClient.create()) {
+ *   TransitionRouteGroupName name = TransitionRouteGroupName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[TRANSITION_ROUTE_GROUP]");
+ *   TransitionRouteGroup response = transitionRouteGroupsClient.getTransitionRouteGroup(name);
+ * }
+ * </code>
+ * </pre>
+ *
+ * ============== VersionsClient ==============
+ *
+ * <p>Service Description: Service for managing
+ * [Versions][google.cloud.dialogflow.cx.v3beta1.Version].
+ *
+ * <p>Sample for VersionsClient:
+ *
+ * <pre>
+ * <code>
+ * try (VersionsClient versionsClient = VersionsClient.create()) {
+ *   VersionName name = VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+ *   Version response = versionsClient.getVersion(name);
+ * }
+ * </code>
+ * </pre>
+ *
+ * ============== WebhooksClient ==============
+ *
+ * <p>Service Description: Service for managing
+ * [Webhooks][google.cloud.dialogflow.cx.v3beta1.Webhook].
+ *
+ * <p>Sample for WebhooksClient:
+ *
+ * <pre>
+ * <code>
+ * try (WebhooksClient webhooksClient = WebhooksClient.create()) {
+ *   WebhookName name = WebhookName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[WEBHOOK]");
+ *   Webhook response = webhooksClient.getWebhook(name);
+ * }
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import javax.annotation.Generated;
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/AgentsStub.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/AgentsStub.java
new file mode 100644
index 000000000..f325d0fde
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/AgentsStub.java
@@ -0,0 +1,100 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.AgentsClient.ListAgentsPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.Agent;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest;
+import com.google.longrunning.Operation;
+import com.google.longrunning.stub.OperationsStub;
+import com.google.protobuf.Empty;
+import com.google.protobuf.Struct;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Base stub class for Dialogflow API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator")
+@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+public abstract class AgentsStub implements BackgroundResource {
+
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationsStub getOperationsStub() {
+    throw new UnsupportedOperationException("Not implemented: getOperationsStub()");
+  }
+
+  public UnaryCallable<ListAgentsRequest, ListAgentsPagedResponse> listAgentsPagedCallable() {
+    throw new UnsupportedOperationException("Not implemented: listAgentsPagedCallable()");
+  }
+
+  public UnaryCallable<ListAgentsRequest, ListAgentsResponse> listAgentsCallable() {
+    throw new UnsupportedOperationException("Not implemented: listAgentsCallable()");
+  }
+
+  public UnaryCallable<GetAgentRequest, Agent> getAgentCallable() {
+    throw new UnsupportedOperationException("Not implemented: getAgentCallable()");
+  }
+
+  public UnaryCallable<CreateAgentRequest, Agent> createAgentCallable() {
+    throw new UnsupportedOperationException("Not implemented: createAgentCallable()");
+  }
+
+  public UnaryCallable<UpdateAgentRequest, Agent> updateAgentCallable() {
+    throw new UnsupportedOperationException("Not implemented: updateAgentCallable()");
+  }
+
+  public UnaryCallable<DeleteAgentRequest, Empty> deleteAgentCallable() {
+    throw new UnsupportedOperationException("Not implemented: deleteAgentCallable()");
+  }
+
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationCallable<ExportAgentRequest, ExportAgentResponse, Struct>
+      exportAgentOperationCallable() {
+    throw new UnsupportedOperationException("Not implemented: exportAgentOperationCallable()");
+  }
+
+  public UnaryCallable<ExportAgentRequest, Operation> exportAgentCallable() {
+    throw new UnsupportedOperationException("Not implemented: exportAgentCallable()");
+  }
+
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationCallable<RestoreAgentRequest, Empty, Struct> restoreAgentOperationCallable() {
+    throw new UnsupportedOperationException("Not implemented: restoreAgentOperationCallable()");
+  }
+
+  public UnaryCallable<RestoreAgentRequest, Operation> restoreAgentCallable() {
+    throw new UnsupportedOperationException("Not implemented: restoreAgentCallable()");
+  }
+
+  @Override
+  public abstract void close();
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/AgentsStubSettings.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/AgentsStubSettings.java
new file mode 100644
index 000000000..44b17e650
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/AgentsStubSettings.java
@@ -0,0 +1,608 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.AgentsClient.ListAgentsPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GaxProperties;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.GrpcTransportChannel;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.grpc.ProtoOperationTransformers;
+import com.google.api.gax.longrunning.OperationSnapshot;
+import com.google.api.gax.longrunning.OperationTimedPollAlgorithm;
+import com.google.api.gax.retrying.RetrySettings;
+import com.google.api.gax.rpc.ApiCallContext;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.PagedListDescriptor;
+import com.google.api.gax.rpc.PagedListResponseFactory;
+import com.google.api.gax.rpc.StatusCode;
+import com.google.api.gax.rpc.StubSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.Agent;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Lists;
+import com.google.longrunning.Operation;
+import com.google.protobuf.Empty;
+import com.google.protobuf.Struct;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+import org.threeten.bp.Duration;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Settings class to configure an instance of {@link AgentsStub}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getAgent to 30 seconds:
+ *
+ * <pre>
+ * <code>
+ * AgentsStubSettings.Builder agentsSettingsBuilder =
+ *     AgentsStubSettings.newBuilder();
+ * agentsSettingsBuilder
+ *     .getAgentSettings()
+ *     .setRetrySettings(
+ *         agentsSettingsBuilder.getAgentSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * AgentsStubSettings agentsSettings = agentsSettingsBuilder.build();
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class AgentsStubSettings extends StubSettings<AgentsStubSettings> {
+  /** The default scopes of the service. */
+  private static final ImmutableList<String> DEFAULT_SERVICE_SCOPES =
+      ImmutableList.<String>builder()
+          .add("https://www.googleapis.com/auth/cloud-platform")
+          .add("https://www.googleapis.com/auth/dialogflow")
+          .build();
+
+  private final PagedCallSettings<ListAgentsRequest, ListAgentsResponse, ListAgentsPagedResponse>
+      listAgentsSettings;
+  private final UnaryCallSettings<GetAgentRequest, Agent> getAgentSettings;
+  private final UnaryCallSettings<CreateAgentRequest, Agent> createAgentSettings;
+  private final UnaryCallSettings<UpdateAgentRequest, Agent> updateAgentSettings;
+  private final UnaryCallSettings<DeleteAgentRequest, Empty> deleteAgentSettings;
+  private final UnaryCallSettings<ExportAgentRequest, Operation> exportAgentSettings;
+  private final OperationCallSettings<ExportAgentRequest, ExportAgentResponse, Struct>
+      exportAgentOperationSettings;
+  private final UnaryCallSettings<RestoreAgentRequest, Operation> restoreAgentSettings;
+  private final OperationCallSettings<RestoreAgentRequest, Empty, Struct>
+      restoreAgentOperationSettings;
+
+  /** Returns the object with the settings used for calls to listAgents. */
+  public PagedCallSettings<ListAgentsRequest, ListAgentsResponse, ListAgentsPagedResponse>
+      listAgentsSettings() {
+    return listAgentsSettings;
+  }
+
+  /** Returns the object with the settings used for calls to getAgent. */
+  public UnaryCallSettings<GetAgentRequest, Agent> getAgentSettings() {
+    return getAgentSettings;
+  }
+
+  /** Returns the object with the settings used for calls to createAgent. */
+  public UnaryCallSettings<CreateAgentRequest, Agent> createAgentSettings() {
+    return createAgentSettings;
+  }
+
+  /** Returns the object with the settings used for calls to updateAgent. */
+  public UnaryCallSettings<UpdateAgentRequest, Agent> updateAgentSettings() {
+    return updateAgentSettings;
+  }
+
+  /** Returns the object with the settings used for calls to deleteAgent. */
+  public UnaryCallSettings<DeleteAgentRequest, Empty> deleteAgentSettings() {
+    return deleteAgentSettings;
+  }
+
+  /** Returns the object with the settings used for calls to exportAgent. */
+  public UnaryCallSettings<ExportAgentRequest, Operation> exportAgentSettings() {
+    return exportAgentSettings;
+  }
+
+  /** Returns the object with the settings used for calls to exportAgent. */
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationCallSettings<ExportAgentRequest, ExportAgentResponse, Struct>
+      exportAgentOperationSettings() {
+    return exportAgentOperationSettings;
+  }
+
+  /** Returns the object with the settings used for calls to restoreAgent. */
+  public UnaryCallSettings<RestoreAgentRequest, Operation> restoreAgentSettings() {
+    return restoreAgentSettings;
+  }
+
+  /** Returns the object with the settings used for calls to restoreAgent. */
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationCallSettings<RestoreAgentRequest, Empty, Struct> restoreAgentOperationSettings() {
+    return restoreAgentOperationSettings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public AgentsStub createStub() throws IOException {
+    if (getTransportChannelProvider()
+        .getTransportName()
+        .equals(GrpcTransportChannel.getGrpcTransportName())) {
+      return GrpcAgentsStub.create(this);
+    } else {
+      throw new UnsupportedOperationException(
+          "Transport not supported: " + getTransportChannelProvider().getTransportName());
+    }
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return InstantiatingExecutorProvider.newBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return "dialogflow.googleapis.com:443";
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return DEFAULT_SERVICE_SCOPES;
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return GoogleCredentialsProvider.newBuilder().setScopesToApply(DEFAULT_SERVICE_SCOPES);
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return InstantiatingGrpcChannelProvider.newBuilder()
+        .setMaxInboundMessageSize(Integer.MAX_VALUE);
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return defaultGrpcTransportProviderBuilder().build();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return ApiClientHeaderProvider.newBuilder()
+        .setGeneratedLibToken("gapic", GaxProperties.getLibraryVersion(AgentsStubSettings.class))
+        .setTransportToken(
+            GaxGrpcProperties.getGrpcTokenName(), GaxGrpcProperties.getGrpcVersion());
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected AgentsStubSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+
+    listAgentsSettings = settingsBuilder.listAgentsSettings().build();
+    getAgentSettings = settingsBuilder.getAgentSettings().build();
+    createAgentSettings = settingsBuilder.createAgentSettings().build();
+    updateAgentSettings = settingsBuilder.updateAgentSettings().build();
+    deleteAgentSettings = settingsBuilder.deleteAgentSettings().build();
+    exportAgentSettings = settingsBuilder.exportAgentSettings().build();
+    exportAgentOperationSettings = settingsBuilder.exportAgentOperationSettings().build();
+    restoreAgentSettings = settingsBuilder.restoreAgentSettings().build();
+    restoreAgentOperationSettings = settingsBuilder.restoreAgentOperationSettings().build();
+  }
+
+  private static final PagedListDescriptor<ListAgentsRequest, ListAgentsResponse, Agent>
+      LIST_AGENTS_PAGE_STR_DESC =
+          new PagedListDescriptor<ListAgentsRequest, ListAgentsResponse, Agent>() {
+            @Override
+            public String emptyToken() {
+              return "";
+            }
+
+            @Override
+            public ListAgentsRequest injectToken(ListAgentsRequest payload, String token) {
+              return ListAgentsRequest.newBuilder(payload).setPageToken(token).build();
+            }
+
+            @Override
+            public ListAgentsRequest injectPageSize(ListAgentsRequest payload, int pageSize) {
+              return ListAgentsRequest.newBuilder(payload).setPageSize(pageSize).build();
+            }
+
+            @Override
+            public Integer extractPageSize(ListAgentsRequest payload) {
+              return payload.getPageSize();
+            }
+
+            @Override
+            public String extractNextToken(ListAgentsResponse payload) {
+              return payload.getNextPageToken();
+            }
+
+            @Override
+            public Iterable<Agent> extractResources(ListAgentsResponse payload) {
+              return payload.getAgentsList() != null
+                  ? payload.getAgentsList()
+                  : ImmutableList.<Agent>of();
+            }
+          };
+
+  private static final PagedListResponseFactory<
+          ListAgentsRequest, ListAgentsResponse, ListAgentsPagedResponse>
+      LIST_AGENTS_PAGE_STR_FACT =
+          new PagedListResponseFactory<
+              ListAgentsRequest, ListAgentsResponse, ListAgentsPagedResponse>() {
+            @Override
+            public ApiFuture<ListAgentsPagedResponse> getFuturePagedResponse(
+                UnaryCallable<ListAgentsRequest, ListAgentsResponse> callable,
+                ListAgentsRequest request,
+                ApiCallContext context,
+                ApiFuture<ListAgentsResponse> futureResponse) {
+              PageContext<ListAgentsRequest, ListAgentsResponse, Agent> pageContext =
+                  PageContext.create(callable, LIST_AGENTS_PAGE_STR_DESC, request, context);
+              return ListAgentsPagedResponse.createAsync(pageContext, futureResponse);
+            }
+          };
+
+  /** Builder for AgentsStubSettings. */
+  public static class Builder extends StubSettings.Builder<AgentsStubSettings, Builder> {
+    private final ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders;
+
+    private final PagedCallSettings.Builder<
+            ListAgentsRequest, ListAgentsResponse, ListAgentsPagedResponse>
+        listAgentsSettings;
+    private final UnaryCallSettings.Builder<GetAgentRequest, Agent> getAgentSettings;
+    private final UnaryCallSettings.Builder<CreateAgentRequest, Agent> createAgentSettings;
+    private final UnaryCallSettings.Builder<UpdateAgentRequest, Agent> updateAgentSettings;
+    private final UnaryCallSettings.Builder<DeleteAgentRequest, Empty> deleteAgentSettings;
+    private final UnaryCallSettings.Builder<ExportAgentRequest, Operation> exportAgentSettings;
+    private final OperationCallSettings.Builder<ExportAgentRequest, ExportAgentResponse, Struct>
+        exportAgentOperationSettings;
+    private final UnaryCallSettings.Builder<RestoreAgentRequest, Operation> restoreAgentSettings;
+    private final OperationCallSettings.Builder<RestoreAgentRequest, Empty, Struct>
+        restoreAgentOperationSettings;
+
+    private static final ImmutableMap<String, ImmutableSet<StatusCode.Code>>
+        RETRYABLE_CODE_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, ImmutableSet<StatusCode.Code>> definitions =
+          ImmutableMap.builder();
+      definitions.put(
+          "retry_policy_1_codes",
+          ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList(StatusCode.Code.UNAVAILABLE)));
+      definitions.put("no_retry_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      definitions.put(
+          "retry_policy_2_codes",
+          ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList(StatusCode.Code.UNAVAILABLE)));
+      definitions.put(
+          "no_retry_1_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      RETRYABLE_CODE_DEFINITIONS = definitions.build();
+    }
+
+    private static final ImmutableMap<String, RetrySettings> RETRY_PARAM_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, RetrySettings> definitions = ImmutableMap.builder();
+      RetrySettings settings = null;
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(60000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(60000L))
+              .setTotalTimeout(Duration.ofMillis(60000L))
+              .build();
+      definitions.put("retry_policy_1_params", settings);
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(220000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(220000L))
+              .setTotalTimeout(Duration.ofMillis(220000L))
+              .build();
+      definitions.put("retry_policy_2_params", settings);
+      settings = RetrySettings.newBuilder().setRpcTimeoutMultiplier(1.0).build();
+      definitions.put("no_retry_params", settings);
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRpcTimeout(Duration.ofMillis(220000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(220000L))
+              .setTotalTimeout(Duration.ofMillis(220000L))
+              .build();
+      definitions.put("no_retry_1_params", settings);
+      RETRY_PARAM_DEFINITIONS = definitions.build();
+    }
+
+    protected Builder() {
+      this((ClientContext) null);
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(clientContext);
+
+      listAgentsSettings = PagedCallSettings.newBuilder(LIST_AGENTS_PAGE_STR_FACT);
+
+      getAgentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      createAgentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      updateAgentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      deleteAgentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      exportAgentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      exportAgentOperationSettings = OperationCallSettings.newBuilder();
+
+      restoreAgentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      restoreAgentOperationSettings = OperationCallSettings.newBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              listAgentsSettings,
+              getAgentSettings,
+              createAgentSettings,
+              updateAgentSettings,
+              deleteAgentSettings,
+              exportAgentSettings,
+              restoreAgentSettings);
+
+      initDefaults(this);
+    }
+
+    private static Builder createDefault() {
+      Builder builder = new Builder((ClientContext) null);
+      builder.setTransportChannelProvider(defaultTransportChannelProvider());
+      builder.setCredentialsProvider(defaultCredentialsProviderBuilder().build());
+      builder.setInternalHeaderProvider(defaultApiClientHeaderProviderBuilder().build());
+      builder.setEndpoint(getDefaultEndpoint());
+      return initDefaults(builder);
+    }
+
+    private static Builder initDefaults(Builder builder) {
+
+      builder
+          .listAgentsSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .getAgentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .createAgentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .updateAgentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .deleteAgentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .exportAgentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .restoreAgentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+      builder
+          .exportAgentOperationSettings()
+          .setInitialCallSettings(
+              UnaryCallSettings.<ExportAgentRequest, OperationSnapshot>newUnaryCallSettingsBuilder()
+                  .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+                  .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"))
+                  .build())
+          .setResponseTransformer(
+              ProtoOperationTransformers.ResponseTransformer.create(ExportAgentResponse.class))
+          .setMetadataTransformer(
+              ProtoOperationTransformers.MetadataTransformer.create(Struct.class))
+          .setPollingAlgorithm(
+              OperationTimedPollAlgorithm.create(
+                  RetrySettings.newBuilder()
+                      .setInitialRetryDelay(Duration.ofMillis(500L))
+                      .setRetryDelayMultiplier(1.5)
+                      .setMaxRetryDelay(Duration.ofMillis(5000L))
+                      .setInitialRpcTimeout(Duration.ZERO) // ignored
+                      .setRpcTimeoutMultiplier(1.0) // ignored
+                      .setMaxRpcTimeout(Duration.ZERO) // ignored
+                      .setTotalTimeout(Duration.ofMillis(300000L))
+                      .build()));
+      builder
+          .restoreAgentOperationSettings()
+          .setInitialCallSettings(
+              UnaryCallSettings
+                  .<RestoreAgentRequest, OperationSnapshot>newUnaryCallSettingsBuilder()
+                  .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+                  .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"))
+                  .build())
+          .setResponseTransformer(
+              ProtoOperationTransformers.ResponseTransformer.create(Empty.class))
+          .setMetadataTransformer(
+              ProtoOperationTransformers.MetadataTransformer.create(Struct.class))
+          .setPollingAlgorithm(
+              OperationTimedPollAlgorithm.create(
+                  RetrySettings.newBuilder()
+                      .setInitialRetryDelay(Duration.ofMillis(500L))
+                      .setRetryDelayMultiplier(1.5)
+                      .setMaxRetryDelay(Duration.ofMillis(5000L))
+                      .setInitialRpcTimeout(Duration.ZERO) // ignored
+                      .setRpcTimeoutMultiplier(1.0) // ignored
+                      .setMaxRpcTimeout(Duration.ZERO) // ignored
+                      .setTotalTimeout(Duration.ofMillis(300000L))
+                      .build()));
+
+      return builder;
+    }
+
+    protected Builder(AgentsStubSettings settings) {
+      super(settings);
+
+      listAgentsSettings = settings.listAgentsSettings.toBuilder();
+      getAgentSettings = settings.getAgentSettings.toBuilder();
+      createAgentSettings = settings.createAgentSettings.toBuilder();
+      updateAgentSettings = settings.updateAgentSettings.toBuilder();
+      deleteAgentSettings = settings.deleteAgentSettings.toBuilder();
+      exportAgentSettings = settings.exportAgentSettings.toBuilder();
+      exportAgentOperationSettings = settings.exportAgentOperationSettings.toBuilder();
+      restoreAgentSettings = settings.restoreAgentSettings.toBuilder();
+      restoreAgentOperationSettings = settings.restoreAgentOperationSettings.toBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              listAgentsSettings,
+              getAgentSettings,
+              createAgentSettings,
+              updateAgentSettings,
+              deleteAgentSettings,
+              exportAgentSettings,
+              restoreAgentSettings);
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(unaryMethodSettingsBuilders, settingsUpdater);
+      return this;
+    }
+
+    public ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders() {
+      return unaryMethodSettingsBuilders;
+    }
+
+    /** Returns the builder for the settings used for calls to listAgents. */
+    public PagedCallSettings.Builder<ListAgentsRequest, ListAgentsResponse, ListAgentsPagedResponse>
+        listAgentsSettings() {
+      return listAgentsSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to getAgent. */
+    public UnaryCallSettings.Builder<GetAgentRequest, Agent> getAgentSettings() {
+      return getAgentSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to createAgent. */
+    public UnaryCallSettings.Builder<CreateAgentRequest, Agent> createAgentSettings() {
+      return createAgentSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to updateAgent. */
+    public UnaryCallSettings.Builder<UpdateAgentRequest, Agent> updateAgentSettings() {
+      return updateAgentSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to deleteAgent. */
+    public UnaryCallSettings.Builder<DeleteAgentRequest, Empty> deleteAgentSettings() {
+      return deleteAgentSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to exportAgent. */
+    public UnaryCallSettings.Builder<ExportAgentRequest, Operation> exportAgentSettings() {
+      return exportAgentSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to exportAgent. */
+    @BetaApi(
+        "The surface for use by generated code is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<ExportAgentRequest, ExportAgentResponse, Struct>
+        exportAgentOperationSettings() {
+      return exportAgentOperationSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to restoreAgent. */
+    public UnaryCallSettings.Builder<RestoreAgentRequest, Operation> restoreAgentSettings() {
+      return restoreAgentSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to restoreAgent. */
+    @BetaApi(
+        "The surface for use by generated code is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<RestoreAgentRequest, Empty, Struct>
+        restoreAgentOperationSettings() {
+      return restoreAgentOperationSettings;
+    }
+
+    @Override
+    public AgentsStubSettings build() throws IOException {
+      return new AgentsStubSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/EntityTypesStub.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/EntityTypesStub.java
new file mode 100644
index 000000000..8794c681d
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/EntityTypesStub.java
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.EntityTypesClient.ListEntityTypesPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.EntityType;
+import com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest;
+import com.google.protobuf.Empty;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Base stub class for Dialogflow API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator")
+@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+public abstract class EntityTypesStub implements BackgroundResource {
+
+  public UnaryCallable<ListEntityTypesRequest, ListEntityTypesPagedResponse>
+      listEntityTypesPagedCallable() {
+    throw new UnsupportedOperationException("Not implemented: listEntityTypesPagedCallable()");
+  }
+
+  public UnaryCallable<ListEntityTypesRequest, ListEntityTypesResponse> listEntityTypesCallable() {
+    throw new UnsupportedOperationException("Not implemented: listEntityTypesCallable()");
+  }
+
+  public UnaryCallable<GetEntityTypeRequest, EntityType> getEntityTypeCallable() {
+    throw new UnsupportedOperationException("Not implemented: getEntityTypeCallable()");
+  }
+
+  public UnaryCallable<CreateEntityTypeRequest, EntityType> createEntityTypeCallable() {
+    throw new UnsupportedOperationException("Not implemented: createEntityTypeCallable()");
+  }
+
+  public UnaryCallable<UpdateEntityTypeRequest, EntityType> updateEntityTypeCallable() {
+    throw new UnsupportedOperationException("Not implemented: updateEntityTypeCallable()");
+  }
+
+  public UnaryCallable<DeleteEntityTypeRequest, Empty> deleteEntityTypeCallable() {
+    throw new UnsupportedOperationException("Not implemented: deleteEntityTypeCallable()");
+  }
+
+  @Override
+  public abstract void close();
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/EntityTypesStubSettings.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/EntityTypesStubSettings.java
new file mode 100644
index 000000000..e5f50a738
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/EntityTypesStubSettings.java
@@ -0,0 +1,475 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.EntityTypesClient.ListEntityTypesPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GaxProperties;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.GrpcTransportChannel;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.retrying.RetrySettings;
+import com.google.api.gax.rpc.ApiCallContext;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.PagedListDescriptor;
+import com.google.api.gax.rpc.PagedListResponseFactory;
+import com.google.api.gax.rpc.StatusCode;
+import com.google.api.gax.rpc.StubSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.EntityType;
+import com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Lists;
+import com.google.protobuf.Empty;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+import org.threeten.bp.Duration;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Settings class to configure an instance of {@link EntityTypesStub}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getEntityType to 30 seconds:
+ *
+ * <pre>
+ * <code>
+ * EntityTypesStubSettings.Builder entityTypesSettingsBuilder =
+ *     EntityTypesStubSettings.newBuilder();
+ * entityTypesSettingsBuilder
+ *     .getEntityTypeSettings()
+ *     .setRetrySettings(
+ *         entityTypesSettingsBuilder.getEntityTypeSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * EntityTypesStubSettings entityTypesSettings = entityTypesSettingsBuilder.build();
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class EntityTypesStubSettings extends StubSettings<EntityTypesStubSettings> {
+  /** The default scopes of the service. */
+  private static final ImmutableList<String> DEFAULT_SERVICE_SCOPES =
+      ImmutableList.<String>builder()
+          .add("https://www.googleapis.com/auth/cloud-platform")
+          .add("https://www.googleapis.com/auth/dialogflow")
+          .build();
+
+  private final PagedCallSettings<
+          ListEntityTypesRequest, ListEntityTypesResponse, ListEntityTypesPagedResponse>
+      listEntityTypesSettings;
+  private final UnaryCallSettings<GetEntityTypeRequest, EntityType> getEntityTypeSettings;
+  private final UnaryCallSettings<CreateEntityTypeRequest, EntityType> createEntityTypeSettings;
+  private final UnaryCallSettings<UpdateEntityTypeRequest, EntityType> updateEntityTypeSettings;
+  private final UnaryCallSettings<DeleteEntityTypeRequest, Empty> deleteEntityTypeSettings;
+
+  /** Returns the object with the settings used for calls to listEntityTypes. */
+  public PagedCallSettings<
+          ListEntityTypesRequest, ListEntityTypesResponse, ListEntityTypesPagedResponse>
+      listEntityTypesSettings() {
+    return listEntityTypesSettings;
+  }
+
+  /** Returns the object with the settings used for calls to getEntityType. */
+  public UnaryCallSettings<GetEntityTypeRequest, EntityType> getEntityTypeSettings() {
+    return getEntityTypeSettings;
+  }
+
+  /** Returns the object with the settings used for calls to createEntityType. */
+  public UnaryCallSettings<CreateEntityTypeRequest, EntityType> createEntityTypeSettings() {
+    return createEntityTypeSettings;
+  }
+
+  /** Returns the object with the settings used for calls to updateEntityType. */
+  public UnaryCallSettings<UpdateEntityTypeRequest, EntityType> updateEntityTypeSettings() {
+    return updateEntityTypeSettings;
+  }
+
+  /** Returns the object with the settings used for calls to deleteEntityType. */
+  public UnaryCallSettings<DeleteEntityTypeRequest, Empty> deleteEntityTypeSettings() {
+    return deleteEntityTypeSettings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public EntityTypesStub createStub() throws IOException {
+    if (getTransportChannelProvider()
+        .getTransportName()
+        .equals(GrpcTransportChannel.getGrpcTransportName())) {
+      return GrpcEntityTypesStub.create(this);
+    } else {
+      throw new UnsupportedOperationException(
+          "Transport not supported: " + getTransportChannelProvider().getTransportName());
+    }
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return InstantiatingExecutorProvider.newBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return "dialogflow.googleapis.com:443";
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return DEFAULT_SERVICE_SCOPES;
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return GoogleCredentialsProvider.newBuilder().setScopesToApply(DEFAULT_SERVICE_SCOPES);
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return InstantiatingGrpcChannelProvider.newBuilder()
+        .setMaxInboundMessageSize(Integer.MAX_VALUE);
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return defaultGrpcTransportProviderBuilder().build();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return ApiClientHeaderProvider.newBuilder()
+        .setGeneratedLibToken(
+            "gapic", GaxProperties.getLibraryVersion(EntityTypesStubSettings.class))
+        .setTransportToken(
+            GaxGrpcProperties.getGrpcTokenName(), GaxGrpcProperties.getGrpcVersion());
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected EntityTypesStubSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+
+    listEntityTypesSettings = settingsBuilder.listEntityTypesSettings().build();
+    getEntityTypeSettings = settingsBuilder.getEntityTypeSettings().build();
+    createEntityTypeSettings = settingsBuilder.createEntityTypeSettings().build();
+    updateEntityTypeSettings = settingsBuilder.updateEntityTypeSettings().build();
+    deleteEntityTypeSettings = settingsBuilder.deleteEntityTypeSettings().build();
+  }
+
+  private static final PagedListDescriptor<
+          ListEntityTypesRequest, ListEntityTypesResponse, EntityType>
+      LIST_ENTITY_TYPES_PAGE_STR_DESC =
+          new PagedListDescriptor<ListEntityTypesRequest, ListEntityTypesResponse, EntityType>() {
+            @Override
+            public String emptyToken() {
+              return "";
+            }
+
+            @Override
+            public ListEntityTypesRequest injectToken(
+                ListEntityTypesRequest payload, String token) {
+              return ListEntityTypesRequest.newBuilder(payload).setPageToken(token).build();
+            }
+
+            @Override
+            public ListEntityTypesRequest injectPageSize(
+                ListEntityTypesRequest payload, int pageSize) {
+              return ListEntityTypesRequest.newBuilder(payload).setPageSize(pageSize).build();
+            }
+
+            @Override
+            public Integer extractPageSize(ListEntityTypesRequest payload) {
+              return payload.getPageSize();
+            }
+
+            @Override
+            public String extractNextToken(ListEntityTypesResponse payload) {
+              return payload.getNextPageToken();
+            }
+
+            @Override
+            public Iterable<EntityType> extractResources(ListEntityTypesResponse payload) {
+              return payload.getEntityTypesList() != null
+                  ? payload.getEntityTypesList()
+                  : ImmutableList.<EntityType>of();
+            }
+          };
+
+  private static final PagedListResponseFactory<
+          ListEntityTypesRequest, ListEntityTypesResponse, ListEntityTypesPagedResponse>
+      LIST_ENTITY_TYPES_PAGE_STR_FACT =
+          new PagedListResponseFactory<
+              ListEntityTypesRequest, ListEntityTypesResponse, ListEntityTypesPagedResponse>() {
+            @Override
+            public ApiFuture<ListEntityTypesPagedResponse> getFuturePagedResponse(
+                UnaryCallable<ListEntityTypesRequest, ListEntityTypesResponse> callable,
+                ListEntityTypesRequest request,
+                ApiCallContext context,
+                ApiFuture<ListEntityTypesResponse> futureResponse) {
+              PageContext<ListEntityTypesRequest, ListEntityTypesResponse, EntityType> pageContext =
+                  PageContext.create(callable, LIST_ENTITY_TYPES_PAGE_STR_DESC, request, context);
+              return ListEntityTypesPagedResponse.createAsync(pageContext, futureResponse);
+            }
+          };
+
+  /** Builder for EntityTypesStubSettings. */
+  public static class Builder extends StubSettings.Builder<EntityTypesStubSettings, Builder> {
+    private final ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders;
+
+    private final PagedCallSettings.Builder<
+            ListEntityTypesRequest, ListEntityTypesResponse, ListEntityTypesPagedResponse>
+        listEntityTypesSettings;
+    private final UnaryCallSettings.Builder<GetEntityTypeRequest, EntityType> getEntityTypeSettings;
+    private final UnaryCallSettings.Builder<CreateEntityTypeRequest, EntityType>
+        createEntityTypeSettings;
+    private final UnaryCallSettings.Builder<UpdateEntityTypeRequest, EntityType>
+        updateEntityTypeSettings;
+    private final UnaryCallSettings.Builder<DeleteEntityTypeRequest, Empty>
+        deleteEntityTypeSettings;
+
+    private static final ImmutableMap<String, ImmutableSet<StatusCode.Code>>
+        RETRYABLE_CODE_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, ImmutableSet<StatusCode.Code>> definitions =
+          ImmutableMap.builder();
+      definitions.put(
+          "retry_policy_1_codes",
+          ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList(StatusCode.Code.UNAVAILABLE)));
+      definitions.put("no_retry_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      definitions.put(
+          "retry_policy_2_codes",
+          ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList(StatusCode.Code.UNAVAILABLE)));
+      definitions.put(
+          "no_retry_1_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      RETRYABLE_CODE_DEFINITIONS = definitions.build();
+    }
+
+    private static final ImmutableMap<String, RetrySettings> RETRY_PARAM_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, RetrySettings> definitions = ImmutableMap.builder();
+      RetrySettings settings = null;
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(60000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(60000L))
+              .setTotalTimeout(Duration.ofMillis(60000L))
+              .build();
+      definitions.put("retry_policy_1_params", settings);
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(220000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(220000L))
+              .setTotalTimeout(Duration.ofMillis(220000L))
+              .build();
+      definitions.put("retry_policy_2_params", settings);
+      settings = RetrySettings.newBuilder().setRpcTimeoutMultiplier(1.0).build();
+      definitions.put("no_retry_params", settings);
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRpcTimeout(Duration.ofMillis(220000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(220000L))
+              .setTotalTimeout(Duration.ofMillis(220000L))
+              .build();
+      definitions.put("no_retry_1_params", settings);
+      RETRY_PARAM_DEFINITIONS = definitions.build();
+    }
+
+    protected Builder() {
+      this((ClientContext) null);
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(clientContext);
+
+      listEntityTypesSettings = PagedCallSettings.newBuilder(LIST_ENTITY_TYPES_PAGE_STR_FACT);
+
+      getEntityTypeSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      createEntityTypeSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      updateEntityTypeSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      deleteEntityTypeSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              listEntityTypesSettings,
+              getEntityTypeSettings,
+              createEntityTypeSettings,
+              updateEntityTypeSettings,
+              deleteEntityTypeSettings);
+
+      initDefaults(this);
+    }
+
+    private static Builder createDefault() {
+      Builder builder = new Builder((ClientContext) null);
+      builder.setTransportChannelProvider(defaultTransportChannelProvider());
+      builder.setCredentialsProvider(defaultCredentialsProviderBuilder().build());
+      builder.setInternalHeaderProvider(defaultApiClientHeaderProviderBuilder().build());
+      builder.setEndpoint(getDefaultEndpoint());
+      return initDefaults(builder);
+    }
+
+    private static Builder initDefaults(Builder builder) {
+
+      builder
+          .listEntityTypesSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .getEntityTypeSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .createEntityTypeSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .updateEntityTypeSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .deleteEntityTypeSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      return builder;
+    }
+
+    protected Builder(EntityTypesStubSettings settings) {
+      super(settings);
+
+      listEntityTypesSettings = settings.listEntityTypesSettings.toBuilder();
+      getEntityTypeSettings = settings.getEntityTypeSettings.toBuilder();
+      createEntityTypeSettings = settings.createEntityTypeSettings.toBuilder();
+      updateEntityTypeSettings = settings.updateEntityTypeSettings.toBuilder();
+      deleteEntityTypeSettings = settings.deleteEntityTypeSettings.toBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              listEntityTypesSettings,
+              getEntityTypeSettings,
+              createEntityTypeSettings,
+              updateEntityTypeSettings,
+              deleteEntityTypeSettings);
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(unaryMethodSettingsBuilders, settingsUpdater);
+      return this;
+    }
+
+    public ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders() {
+      return unaryMethodSettingsBuilders;
+    }
+
+    /** Returns the builder for the settings used for calls to listEntityTypes. */
+    public PagedCallSettings.Builder<
+            ListEntityTypesRequest, ListEntityTypesResponse, ListEntityTypesPagedResponse>
+        listEntityTypesSettings() {
+      return listEntityTypesSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to getEntityType. */
+    public UnaryCallSettings.Builder<GetEntityTypeRequest, EntityType> getEntityTypeSettings() {
+      return getEntityTypeSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to createEntityType. */
+    public UnaryCallSettings.Builder<CreateEntityTypeRequest, EntityType>
+        createEntityTypeSettings() {
+      return createEntityTypeSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to updateEntityType. */
+    public UnaryCallSettings.Builder<UpdateEntityTypeRequest, EntityType>
+        updateEntityTypeSettings() {
+      return updateEntityTypeSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to deleteEntityType. */
+    public UnaryCallSettings.Builder<DeleteEntityTypeRequest, Empty> deleteEntityTypeSettings() {
+      return deleteEntityTypeSettings;
+    }
+
+    @Override
+    public EntityTypesStubSettings build() throws IOException {
+      return new EntityTypesStubSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/EnvironmentsStub.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/EnvironmentsStub.java
new file mode 100644
index 000000000..6064a2c57
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/EnvironmentsStub.java
@@ -0,0 +1,108 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.EnvironmentsClient.ListEnvironmentsPagedResponse;
+import static com.google.cloud.dialogflow.cx.v3beta1.EnvironmentsClient.LookupEnvironmentHistoryPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.Environment;
+import com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest;
+import com.google.longrunning.Operation;
+import com.google.longrunning.stub.OperationsStub;
+import com.google.protobuf.Empty;
+import com.google.protobuf.Struct;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Base stub class for Dialogflow API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator")
+@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+public abstract class EnvironmentsStub implements BackgroundResource {
+
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationsStub getOperationsStub() {
+    throw new UnsupportedOperationException("Not implemented: getOperationsStub()");
+  }
+
+  public UnaryCallable<ListEnvironmentsRequest, ListEnvironmentsPagedResponse>
+      listEnvironmentsPagedCallable() {
+    throw new UnsupportedOperationException("Not implemented: listEnvironmentsPagedCallable()");
+  }
+
+  public UnaryCallable<ListEnvironmentsRequest, ListEnvironmentsResponse>
+      listEnvironmentsCallable() {
+    throw new UnsupportedOperationException("Not implemented: listEnvironmentsCallable()");
+  }
+
+  public UnaryCallable<GetEnvironmentRequest, Environment> getEnvironmentCallable() {
+    throw new UnsupportedOperationException("Not implemented: getEnvironmentCallable()");
+  }
+
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationCallable<CreateEnvironmentRequest, Environment, Struct>
+      createEnvironmentOperationCallable() {
+    throw new UnsupportedOperationException(
+        "Not implemented: createEnvironmentOperationCallable()");
+  }
+
+  public UnaryCallable<CreateEnvironmentRequest, Operation> createEnvironmentCallable() {
+    throw new UnsupportedOperationException("Not implemented: createEnvironmentCallable()");
+  }
+
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationCallable<UpdateEnvironmentRequest, Environment, Struct>
+      updateEnvironmentOperationCallable() {
+    throw new UnsupportedOperationException(
+        "Not implemented: updateEnvironmentOperationCallable()");
+  }
+
+  public UnaryCallable<UpdateEnvironmentRequest, Operation> updateEnvironmentCallable() {
+    throw new UnsupportedOperationException("Not implemented: updateEnvironmentCallable()");
+  }
+
+  public UnaryCallable<DeleteEnvironmentRequest, Empty> deleteEnvironmentCallable() {
+    throw new UnsupportedOperationException("Not implemented: deleteEnvironmentCallable()");
+  }
+
+  public UnaryCallable<LookupEnvironmentHistoryRequest, LookupEnvironmentHistoryPagedResponse>
+      lookupEnvironmentHistoryPagedCallable() {
+    throw new UnsupportedOperationException(
+        "Not implemented: lookupEnvironmentHistoryPagedCallable()");
+  }
+
+  public UnaryCallable<LookupEnvironmentHistoryRequest, LookupEnvironmentHistoryResponse>
+      lookupEnvironmentHistoryCallable() {
+    throw new UnsupportedOperationException("Not implemented: lookupEnvironmentHistoryCallable()");
+  }
+
+  @Override
+  public abstract void close();
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/EnvironmentsStubSettings.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/EnvironmentsStubSettings.java
new file mode 100644
index 000000000..38a1c5d99
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/EnvironmentsStubSettings.java
@@ -0,0 +1,694 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.EnvironmentsClient.ListEnvironmentsPagedResponse;
+import static com.google.cloud.dialogflow.cx.v3beta1.EnvironmentsClient.LookupEnvironmentHistoryPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GaxProperties;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.GrpcTransportChannel;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.grpc.ProtoOperationTransformers;
+import com.google.api.gax.longrunning.OperationSnapshot;
+import com.google.api.gax.longrunning.OperationTimedPollAlgorithm;
+import com.google.api.gax.retrying.RetrySettings;
+import com.google.api.gax.rpc.ApiCallContext;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.PagedListDescriptor;
+import com.google.api.gax.rpc.PagedListResponseFactory;
+import com.google.api.gax.rpc.StatusCode;
+import com.google.api.gax.rpc.StubSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.Environment;
+import com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Lists;
+import com.google.longrunning.Operation;
+import com.google.protobuf.Empty;
+import com.google.protobuf.Struct;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+import org.threeten.bp.Duration;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Settings class to configure an instance of {@link EnvironmentsStub}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getEnvironment to 30 seconds:
+ *
+ * <pre>
+ * <code>
+ * EnvironmentsStubSettings.Builder environmentsSettingsBuilder =
+ *     EnvironmentsStubSettings.newBuilder();
+ * environmentsSettingsBuilder
+ *     .getEnvironmentSettings()
+ *     .setRetrySettings(
+ *         environmentsSettingsBuilder.getEnvironmentSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * EnvironmentsStubSettings environmentsSettings = environmentsSettingsBuilder.build();
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class EnvironmentsStubSettings extends StubSettings<EnvironmentsStubSettings> {
+  /** The default scopes of the service. */
+  private static final ImmutableList<String> DEFAULT_SERVICE_SCOPES =
+      ImmutableList.<String>builder()
+          .add("https://www.googleapis.com/auth/cloud-platform")
+          .add("https://www.googleapis.com/auth/dialogflow")
+          .build();
+
+  private final PagedCallSettings<
+          ListEnvironmentsRequest, ListEnvironmentsResponse, ListEnvironmentsPagedResponse>
+      listEnvironmentsSettings;
+  private final UnaryCallSettings<GetEnvironmentRequest, Environment> getEnvironmentSettings;
+  private final UnaryCallSettings<CreateEnvironmentRequest, Operation> createEnvironmentSettings;
+  private final OperationCallSettings<CreateEnvironmentRequest, Environment, Struct>
+      createEnvironmentOperationSettings;
+  private final UnaryCallSettings<UpdateEnvironmentRequest, Operation> updateEnvironmentSettings;
+  private final OperationCallSettings<UpdateEnvironmentRequest, Environment, Struct>
+      updateEnvironmentOperationSettings;
+  private final UnaryCallSettings<DeleteEnvironmentRequest, Empty> deleteEnvironmentSettings;
+  private final PagedCallSettings<
+          LookupEnvironmentHistoryRequest,
+          LookupEnvironmentHistoryResponse,
+          LookupEnvironmentHistoryPagedResponse>
+      lookupEnvironmentHistorySettings;
+
+  /** Returns the object with the settings used for calls to listEnvironments. */
+  public PagedCallSettings<
+          ListEnvironmentsRequest, ListEnvironmentsResponse, ListEnvironmentsPagedResponse>
+      listEnvironmentsSettings() {
+    return listEnvironmentsSettings;
+  }
+
+  /** Returns the object with the settings used for calls to getEnvironment. */
+  public UnaryCallSettings<GetEnvironmentRequest, Environment> getEnvironmentSettings() {
+    return getEnvironmentSettings;
+  }
+
+  /** Returns the object with the settings used for calls to createEnvironment. */
+  public UnaryCallSettings<CreateEnvironmentRequest, Operation> createEnvironmentSettings() {
+    return createEnvironmentSettings;
+  }
+
+  /** Returns the object with the settings used for calls to createEnvironment. */
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationCallSettings<CreateEnvironmentRequest, Environment, Struct>
+      createEnvironmentOperationSettings() {
+    return createEnvironmentOperationSettings;
+  }
+
+  /** Returns the object with the settings used for calls to updateEnvironment. */
+  public UnaryCallSettings<UpdateEnvironmentRequest, Operation> updateEnvironmentSettings() {
+    return updateEnvironmentSettings;
+  }
+
+  /** Returns the object with the settings used for calls to updateEnvironment. */
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationCallSettings<UpdateEnvironmentRequest, Environment, Struct>
+      updateEnvironmentOperationSettings() {
+    return updateEnvironmentOperationSettings;
+  }
+
+  /** Returns the object with the settings used for calls to deleteEnvironment. */
+  public UnaryCallSettings<DeleteEnvironmentRequest, Empty> deleteEnvironmentSettings() {
+    return deleteEnvironmentSettings;
+  }
+
+  /** Returns the object with the settings used for calls to lookupEnvironmentHistory. */
+  public PagedCallSettings<
+          LookupEnvironmentHistoryRequest,
+          LookupEnvironmentHistoryResponse,
+          LookupEnvironmentHistoryPagedResponse>
+      lookupEnvironmentHistorySettings() {
+    return lookupEnvironmentHistorySettings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public EnvironmentsStub createStub() throws IOException {
+    if (getTransportChannelProvider()
+        .getTransportName()
+        .equals(GrpcTransportChannel.getGrpcTransportName())) {
+      return GrpcEnvironmentsStub.create(this);
+    } else {
+      throw new UnsupportedOperationException(
+          "Transport not supported: " + getTransportChannelProvider().getTransportName());
+    }
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return InstantiatingExecutorProvider.newBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return "dialogflow.googleapis.com:443";
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return DEFAULT_SERVICE_SCOPES;
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return GoogleCredentialsProvider.newBuilder().setScopesToApply(DEFAULT_SERVICE_SCOPES);
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return InstantiatingGrpcChannelProvider.newBuilder()
+        .setMaxInboundMessageSize(Integer.MAX_VALUE);
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return defaultGrpcTransportProviderBuilder().build();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return ApiClientHeaderProvider.newBuilder()
+        .setGeneratedLibToken(
+            "gapic", GaxProperties.getLibraryVersion(EnvironmentsStubSettings.class))
+        .setTransportToken(
+            GaxGrpcProperties.getGrpcTokenName(), GaxGrpcProperties.getGrpcVersion());
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected EnvironmentsStubSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+
+    listEnvironmentsSettings = settingsBuilder.listEnvironmentsSettings().build();
+    getEnvironmentSettings = settingsBuilder.getEnvironmentSettings().build();
+    createEnvironmentSettings = settingsBuilder.createEnvironmentSettings().build();
+    createEnvironmentOperationSettings =
+        settingsBuilder.createEnvironmentOperationSettings().build();
+    updateEnvironmentSettings = settingsBuilder.updateEnvironmentSettings().build();
+    updateEnvironmentOperationSettings =
+        settingsBuilder.updateEnvironmentOperationSettings().build();
+    deleteEnvironmentSettings = settingsBuilder.deleteEnvironmentSettings().build();
+    lookupEnvironmentHistorySettings = settingsBuilder.lookupEnvironmentHistorySettings().build();
+  }
+
+  private static final PagedListDescriptor<
+          ListEnvironmentsRequest, ListEnvironmentsResponse, Environment>
+      LIST_ENVIRONMENTS_PAGE_STR_DESC =
+          new PagedListDescriptor<
+              ListEnvironmentsRequest, ListEnvironmentsResponse, Environment>() {
+            @Override
+            public String emptyToken() {
+              return "";
+            }
+
+            @Override
+            public ListEnvironmentsRequest injectToken(
+                ListEnvironmentsRequest payload, String token) {
+              return ListEnvironmentsRequest.newBuilder(payload).setPageToken(token).build();
+            }
+
+            @Override
+            public ListEnvironmentsRequest injectPageSize(
+                ListEnvironmentsRequest payload, int pageSize) {
+              return ListEnvironmentsRequest.newBuilder(payload).setPageSize(pageSize).build();
+            }
+
+            @Override
+            public Integer extractPageSize(ListEnvironmentsRequest payload) {
+              return payload.getPageSize();
+            }
+
+            @Override
+            public String extractNextToken(ListEnvironmentsResponse payload) {
+              return payload.getNextPageToken();
+            }
+
+            @Override
+            public Iterable<Environment> extractResources(ListEnvironmentsResponse payload) {
+              return payload.getEnvironmentsList() != null
+                  ? payload.getEnvironmentsList()
+                  : ImmutableList.<Environment>of();
+            }
+          };
+
+  private static final PagedListDescriptor<
+          LookupEnvironmentHistoryRequest, LookupEnvironmentHistoryResponse, Environment>
+      LOOKUP_ENVIRONMENT_HISTORY_PAGE_STR_DESC =
+          new PagedListDescriptor<
+              LookupEnvironmentHistoryRequest, LookupEnvironmentHistoryResponse, Environment>() {
+            @Override
+            public String emptyToken() {
+              return "";
+            }
+
+            @Override
+            public LookupEnvironmentHistoryRequest injectToken(
+                LookupEnvironmentHistoryRequest payload, String token) {
+              return LookupEnvironmentHistoryRequest.newBuilder(payload)
+                  .setPageToken(token)
+                  .build();
+            }
+
+            @Override
+            public LookupEnvironmentHistoryRequest injectPageSize(
+                LookupEnvironmentHistoryRequest payload, int pageSize) {
+              return LookupEnvironmentHistoryRequest.newBuilder(payload)
+                  .setPageSize(pageSize)
+                  .build();
+            }
+
+            @Override
+            public Integer extractPageSize(LookupEnvironmentHistoryRequest payload) {
+              return payload.getPageSize();
+            }
+
+            @Override
+            public String extractNextToken(LookupEnvironmentHistoryResponse payload) {
+              return payload.getNextPageToken();
+            }
+
+            @Override
+            public Iterable<Environment> extractResources(
+                LookupEnvironmentHistoryResponse payload) {
+              return payload.getEnvironmentsList() != null
+                  ? payload.getEnvironmentsList()
+                  : ImmutableList.<Environment>of();
+            }
+          };
+
+  private static final PagedListResponseFactory<
+          ListEnvironmentsRequest, ListEnvironmentsResponse, ListEnvironmentsPagedResponse>
+      LIST_ENVIRONMENTS_PAGE_STR_FACT =
+          new PagedListResponseFactory<
+              ListEnvironmentsRequest, ListEnvironmentsResponse, ListEnvironmentsPagedResponse>() {
+            @Override
+            public ApiFuture<ListEnvironmentsPagedResponse> getFuturePagedResponse(
+                UnaryCallable<ListEnvironmentsRequest, ListEnvironmentsResponse> callable,
+                ListEnvironmentsRequest request,
+                ApiCallContext context,
+                ApiFuture<ListEnvironmentsResponse> futureResponse) {
+              PageContext<ListEnvironmentsRequest, ListEnvironmentsResponse, Environment>
+                  pageContext =
+                      PageContext.create(
+                          callable, LIST_ENVIRONMENTS_PAGE_STR_DESC, request, context);
+              return ListEnvironmentsPagedResponse.createAsync(pageContext, futureResponse);
+            }
+          };
+
+  private static final PagedListResponseFactory<
+          LookupEnvironmentHistoryRequest,
+          LookupEnvironmentHistoryResponse,
+          LookupEnvironmentHistoryPagedResponse>
+      LOOKUP_ENVIRONMENT_HISTORY_PAGE_STR_FACT =
+          new PagedListResponseFactory<
+              LookupEnvironmentHistoryRequest,
+              LookupEnvironmentHistoryResponse,
+              LookupEnvironmentHistoryPagedResponse>() {
+            @Override
+            public ApiFuture<LookupEnvironmentHistoryPagedResponse> getFuturePagedResponse(
+                UnaryCallable<LookupEnvironmentHistoryRequest, LookupEnvironmentHistoryResponse>
+                    callable,
+                LookupEnvironmentHistoryRequest request,
+                ApiCallContext context,
+                ApiFuture<LookupEnvironmentHistoryResponse> futureResponse) {
+              PageContext<
+                      LookupEnvironmentHistoryRequest,
+                      LookupEnvironmentHistoryResponse,
+                      Environment>
+                  pageContext =
+                      PageContext.create(
+                          callable, LOOKUP_ENVIRONMENT_HISTORY_PAGE_STR_DESC, request, context);
+              return LookupEnvironmentHistoryPagedResponse.createAsync(pageContext, futureResponse);
+            }
+          };
+
+  /** Builder for EnvironmentsStubSettings. */
+  public static class Builder extends StubSettings.Builder<EnvironmentsStubSettings, Builder> {
+    private final ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders;
+
+    private final PagedCallSettings.Builder<
+            ListEnvironmentsRequest, ListEnvironmentsResponse, ListEnvironmentsPagedResponse>
+        listEnvironmentsSettings;
+    private final UnaryCallSettings.Builder<GetEnvironmentRequest, Environment>
+        getEnvironmentSettings;
+    private final UnaryCallSettings.Builder<CreateEnvironmentRequest, Operation>
+        createEnvironmentSettings;
+    private final OperationCallSettings.Builder<CreateEnvironmentRequest, Environment, Struct>
+        createEnvironmentOperationSettings;
+    private final UnaryCallSettings.Builder<UpdateEnvironmentRequest, Operation>
+        updateEnvironmentSettings;
+    private final OperationCallSettings.Builder<UpdateEnvironmentRequest, Environment, Struct>
+        updateEnvironmentOperationSettings;
+    private final UnaryCallSettings.Builder<DeleteEnvironmentRequest, Empty>
+        deleteEnvironmentSettings;
+    private final PagedCallSettings.Builder<
+            LookupEnvironmentHistoryRequest,
+            LookupEnvironmentHistoryResponse,
+            LookupEnvironmentHistoryPagedResponse>
+        lookupEnvironmentHistorySettings;
+
+    private static final ImmutableMap<String, ImmutableSet<StatusCode.Code>>
+        RETRYABLE_CODE_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, ImmutableSet<StatusCode.Code>> definitions =
+          ImmutableMap.builder();
+      definitions.put(
+          "retry_policy_1_codes",
+          ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList(StatusCode.Code.UNAVAILABLE)));
+      definitions.put("no_retry_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      definitions.put(
+          "retry_policy_2_codes",
+          ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList(StatusCode.Code.UNAVAILABLE)));
+      definitions.put(
+          "no_retry_1_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      RETRYABLE_CODE_DEFINITIONS = definitions.build();
+    }
+
+    private static final ImmutableMap<String, RetrySettings> RETRY_PARAM_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, RetrySettings> definitions = ImmutableMap.builder();
+      RetrySettings settings = null;
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(60000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(60000L))
+              .setTotalTimeout(Duration.ofMillis(60000L))
+              .build();
+      definitions.put("retry_policy_1_params", settings);
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(220000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(220000L))
+              .setTotalTimeout(Duration.ofMillis(220000L))
+              .build();
+      definitions.put("retry_policy_2_params", settings);
+      settings = RetrySettings.newBuilder().setRpcTimeoutMultiplier(1.0).build();
+      definitions.put("no_retry_params", settings);
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRpcTimeout(Duration.ofMillis(220000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(220000L))
+              .setTotalTimeout(Duration.ofMillis(220000L))
+              .build();
+      definitions.put("no_retry_1_params", settings);
+      RETRY_PARAM_DEFINITIONS = definitions.build();
+    }
+
+    protected Builder() {
+      this((ClientContext) null);
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(clientContext);
+
+      listEnvironmentsSettings = PagedCallSettings.newBuilder(LIST_ENVIRONMENTS_PAGE_STR_FACT);
+
+      getEnvironmentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      createEnvironmentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      createEnvironmentOperationSettings = OperationCallSettings.newBuilder();
+
+      updateEnvironmentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      updateEnvironmentOperationSettings = OperationCallSettings.newBuilder();
+
+      deleteEnvironmentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      lookupEnvironmentHistorySettings =
+          PagedCallSettings.newBuilder(LOOKUP_ENVIRONMENT_HISTORY_PAGE_STR_FACT);
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              listEnvironmentsSettings,
+              getEnvironmentSettings,
+              createEnvironmentSettings,
+              updateEnvironmentSettings,
+              deleteEnvironmentSettings,
+              lookupEnvironmentHistorySettings);
+
+      initDefaults(this);
+    }
+
+    private static Builder createDefault() {
+      Builder builder = new Builder((ClientContext) null);
+      builder.setTransportChannelProvider(defaultTransportChannelProvider());
+      builder.setCredentialsProvider(defaultCredentialsProviderBuilder().build());
+      builder.setInternalHeaderProvider(defaultApiClientHeaderProviderBuilder().build());
+      builder.setEndpoint(getDefaultEndpoint());
+      return initDefaults(builder);
+    }
+
+    private static Builder initDefaults(Builder builder) {
+
+      builder
+          .listEnvironmentsSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .getEnvironmentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .createEnvironmentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .updateEnvironmentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .deleteEnvironmentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .lookupEnvironmentHistorySettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+      builder
+          .createEnvironmentOperationSettings()
+          .setInitialCallSettings(
+              UnaryCallSettings
+                  .<CreateEnvironmentRequest, OperationSnapshot>newUnaryCallSettingsBuilder()
+                  .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+                  .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"))
+                  .build())
+          .setResponseTransformer(
+              ProtoOperationTransformers.ResponseTransformer.create(Environment.class))
+          .setMetadataTransformer(
+              ProtoOperationTransformers.MetadataTransformer.create(Struct.class))
+          .setPollingAlgorithm(
+              OperationTimedPollAlgorithm.create(
+                  RetrySettings.newBuilder()
+                      .setInitialRetryDelay(Duration.ofMillis(500L))
+                      .setRetryDelayMultiplier(1.5)
+                      .setMaxRetryDelay(Duration.ofMillis(5000L))
+                      .setInitialRpcTimeout(Duration.ZERO) // ignored
+                      .setRpcTimeoutMultiplier(1.0) // ignored
+                      .setMaxRpcTimeout(Duration.ZERO) // ignored
+                      .setTotalTimeout(Duration.ofMillis(300000L))
+                      .build()));
+      builder
+          .updateEnvironmentOperationSettings()
+          .setInitialCallSettings(
+              UnaryCallSettings
+                  .<UpdateEnvironmentRequest, OperationSnapshot>newUnaryCallSettingsBuilder()
+                  .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+                  .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"))
+                  .build())
+          .setResponseTransformer(
+              ProtoOperationTransformers.ResponseTransformer.create(Environment.class))
+          .setMetadataTransformer(
+              ProtoOperationTransformers.MetadataTransformer.create(Struct.class))
+          .setPollingAlgorithm(
+              OperationTimedPollAlgorithm.create(
+                  RetrySettings.newBuilder()
+                      .setInitialRetryDelay(Duration.ofMillis(500L))
+                      .setRetryDelayMultiplier(1.5)
+                      .setMaxRetryDelay(Duration.ofMillis(5000L))
+                      .setInitialRpcTimeout(Duration.ZERO) // ignored
+                      .setRpcTimeoutMultiplier(1.0) // ignored
+                      .setMaxRpcTimeout(Duration.ZERO) // ignored
+                      .setTotalTimeout(Duration.ofMillis(300000L))
+                      .build()));
+
+      return builder;
+    }
+
+    protected Builder(EnvironmentsStubSettings settings) {
+      super(settings);
+
+      listEnvironmentsSettings = settings.listEnvironmentsSettings.toBuilder();
+      getEnvironmentSettings = settings.getEnvironmentSettings.toBuilder();
+      createEnvironmentSettings = settings.createEnvironmentSettings.toBuilder();
+      createEnvironmentOperationSettings = settings.createEnvironmentOperationSettings.toBuilder();
+      updateEnvironmentSettings = settings.updateEnvironmentSettings.toBuilder();
+      updateEnvironmentOperationSettings = settings.updateEnvironmentOperationSettings.toBuilder();
+      deleteEnvironmentSettings = settings.deleteEnvironmentSettings.toBuilder();
+      lookupEnvironmentHistorySettings = settings.lookupEnvironmentHistorySettings.toBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              listEnvironmentsSettings,
+              getEnvironmentSettings,
+              createEnvironmentSettings,
+              updateEnvironmentSettings,
+              deleteEnvironmentSettings,
+              lookupEnvironmentHistorySettings);
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(unaryMethodSettingsBuilders, settingsUpdater);
+      return this;
+    }
+
+    public ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders() {
+      return unaryMethodSettingsBuilders;
+    }
+
+    /** Returns the builder for the settings used for calls to listEnvironments. */
+    public PagedCallSettings.Builder<
+            ListEnvironmentsRequest, ListEnvironmentsResponse, ListEnvironmentsPagedResponse>
+        listEnvironmentsSettings() {
+      return listEnvironmentsSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to getEnvironment. */
+    public UnaryCallSettings.Builder<GetEnvironmentRequest, Environment> getEnvironmentSettings() {
+      return getEnvironmentSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to createEnvironment. */
+    public UnaryCallSettings.Builder<CreateEnvironmentRequest, Operation>
+        createEnvironmentSettings() {
+      return createEnvironmentSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to createEnvironment. */
+    @BetaApi(
+        "The surface for use by generated code is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<CreateEnvironmentRequest, Environment, Struct>
+        createEnvironmentOperationSettings() {
+      return createEnvironmentOperationSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to updateEnvironment. */
+    public UnaryCallSettings.Builder<UpdateEnvironmentRequest, Operation>
+        updateEnvironmentSettings() {
+      return updateEnvironmentSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to updateEnvironment. */
+    @BetaApi(
+        "The surface for use by generated code is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<UpdateEnvironmentRequest, Environment, Struct>
+        updateEnvironmentOperationSettings() {
+      return updateEnvironmentOperationSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to deleteEnvironment. */
+    public UnaryCallSettings.Builder<DeleteEnvironmentRequest, Empty> deleteEnvironmentSettings() {
+      return deleteEnvironmentSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to lookupEnvironmentHistory. */
+    public PagedCallSettings.Builder<
+            LookupEnvironmentHistoryRequest,
+            LookupEnvironmentHistoryResponse,
+            LookupEnvironmentHistoryPagedResponse>
+        lookupEnvironmentHistorySettings() {
+      return lookupEnvironmentHistorySettings;
+    }
+
+    @Override
+    public EnvironmentsStubSettings build() throws IOException {
+      return new EnvironmentsStubSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/FlowsStub.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/FlowsStub.java
new file mode 100644
index 000000000..37148c1c0
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/FlowsStub.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.FlowsClient.ListFlowsPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.Flow;
+import com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest;
+import com.google.longrunning.Operation;
+import com.google.longrunning.stub.OperationsStub;
+import com.google.protobuf.Empty;
+import com.google.protobuf.Struct;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Base stub class for Dialogflow API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator")
+@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+public abstract class FlowsStub implements BackgroundResource {
+
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationsStub getOperationsStub() {
+    throw new UnsupportedOperationException("Not implemented: getOperationsStub()");
+  }
+
+  public UnaryCallable<CreateFlowRequest, Flow> createFlowCallable() {
+    throw new UnsupportedOperationException("Not implemented: createFlowCallable()");
+  }
+
+  public UnaryCallable<DeleteFlowRequest, Empty> deleteFlowCallable() {
+    throw new UnsupportedOperationException("Not implemented: deleteFlowCallable()");
+  }
+
+  public UnaryCallable<ListFlowsRequest, ListFlowsPagedResponse> listFlowsPagedCallable() {
+    throw new UnsupportedOperationException("Not implemented: listFlowsPagedCallable()");
+  }
+
+  public UnaryCallable<ListFlowsRequest, ListFlowsResponse> listFlowsCallable() {
+    throw new UnsupportedOperationException("Not implemented: listFlowsCallable()");
+  }
+
+  public UnaryCallable<GetFlowRequest, Flow> getFlowCallable() {
+    throw new UnsupportedOperationException("Not implemented: getFlowCallable()");
+  }
+
+  public UnaryCallable<UpdateFlowRequest, Flow> updateFlowCallable() {
+    throw new UnsupportedOperationException("Not implemented: updateFlowCallable()");
+  }
+
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationCallable<TrainFlowRequest, Empty, Struct> trainFlowOperationCallable() {
+    throw new UnsupportedOperationException("Not implemented: trainFlowOperationCallable()");
+  }
+
+  public UnaryCallable<TrainFlowRequest, Operation> trainFlowCallable() {
+    throw new UnsupportedOperationException("Not implemented: trainFlowCallable()");
+  }
+
+  @Override
+  public abstract void close();
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/FlowsStubSettings.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/FlowsStubSettings.java
new file mode 100644
index 000000000..7ca8bf58a
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/FlowsStubSettings.java
@@ -0,0 +1,536 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.FlowsClient.ListFlowsPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GaxProperties;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.GrpcTransportChannel;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.grpc.ProtoOperationTransformers;
+import com.google.api.gax.longrunning.OperationSnapshot;
+import com.google.api.gax.longrunning.OperationTimedPollAlgorithm;
+import com.google.api.gax.retrying.RetrySettings;
+import com.google.api.gax.rpc.ApiCallContext;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.PagedListDescriptor;
+import com.google.api.gax.rpc.PagedListResponseFactory;
+import com.google.api.gax.rpc.StatusCode;
+import com.google.api.gax.rpc.StubSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.Flow;
+import com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Lists;
+import com.google.longrunning.Operation;
+import com.google.protobuf.Empty;
+import com.google.protobuf.Struct;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+import org.threeten.bp.Duration;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Settings class to configure an instance of {@link FlowsStub}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of createFlow to 30 seconds:
+ *
+ * <pre>
+ * <code>
+ * FlowsStubSettings.Builder flowsSettingsBuilder =
+ *     FlowsStubSettings.newBuilder();
+ * flowsSettingsBuilder
+ *     .createFlowSettings()
+ *     .setRetrySettings(
+ *         flowsSettingsBuilder.createFlowSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * FlowsStubSettings flowsSettings = flowsSettingsBuilder.build();
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class FlowsStubSettings extends StubSettings<FlowsStubSettings> {
+  /** The default scopes of the service. */
+  private static final ImmutableList<String> DEFAULT_SERVICE_SCOPES =
+      ImmutableList.<String>builder()
+          .add("https://www.googleapis.com/auth/cloud-platform")
+          .add("https://www.googleapis.com/auth/dialogflow")
+          .build();
+
+  private final UnaryCallSettings<CreateFlowRequest, Flow> createFlowSettings;
+  private final UnaryCallSettings<DeleteFlowRequest, Empty> deleteFlowSettings;
+  private final PagedCallSettings<ListFlowsRequest, ListFlowsResponse, ListFlowsPagedResponse>
+      listFlowsSettings;
+  private final UnaryCallSettings<GetFlowRequest, Flow> getFlowSettings;
+  private final UnaryCallSettings<UpdateFlowRequest, Flow> updateFlowSettings;
+  private final UnaryCallSettings<TrainFlowRequest, Operation> trainFlowSettings;
+  private final OperationCallSettings<TrainFlowRequest, Empty, Struct> trainFlowOperationSettings;
+
+  /** Returns the object with the settings used for calls to createFlow. */
+  public UnaryCallSettings<CreateFlowRequest, Flow> createFlowSettings() {
+    return createFlowSettings;
+  }
+
+  /** Returns the object with the settings used for calls to deleteFlow. */
+  public UnaryCallSettings<DeleteFlowRequest, Empty> deleteFlowSettings() {
+    return deleteFlowSettings;
+  }
+
+  /** Returns the object with the settings used for calls to listFlows. */
+  public PagedCallSettings<ListFlowsRequest, ListFlowsResponse, ListFlowsPagedResponse>
+      listFlowsSettings() {
+    return listFlowsSettings;
+  }
+
+  /** Returns the object with the settings used for calls to getFlow. */
+  public UnaryCallSettings<GetFlowRequest, Flow> getFlowSettings() {
+    return getFlowSettings;
+  }
+
+  /** Returns the object with the settings used for calls to updateFlow. */
+  public UnaryCallSettings<UpdateFlowRequest, Flow> updateFlowSettings() {
+    return updateFlowSettings;
+  }
+
+  /** Returns the object with the settings used for calls to trainFlow. */
+  public UnaryCallSettings<TrainFlowRequest, Operation> trainFlowSettings() {
+    return trainFlowSettings;
+  }
+
+  /** Returns the object with the settings used for calls to trainFlow. */
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationCallSettings<TrainFlowRequest, Empty, Struct> trainFlowOperationSettings() {
+    return trainFlowOperationSettings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public FlowsStub createStub() throws IOException {
+    if (getTransportChannelProvider()
+        .getTransportName()
+        .equals(GrpcTransportChannel.getGrpcTransportName())) {
+      return GrpcFlowsStub.create(this);
+    } else {
+      throw new UnsupportedOperationException(
+          "Transport not supported: " + getTransportChannelProvider().getTransportName());
+    }
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return InstantiatingExecutorProvider.newBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return "dialogflow.googleapis.com:443";
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return DEFAULT_SERVICE_SCOPES;
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return GoogleCredentialsProvider.newBuilder().setScopesToApply(DEFAULT_SERVICE_SCOPES);
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return InstantiatingGrpcChannelProvider.newBuilder()
+        .setMaxInboundMessageSize(Integer.MAX_VALUE);
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return defaultGrpcTransportProviderBuilder().build();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return ApiClientHeaderProvider.newBuilder()
+        .setGeneratedLibToken("gapic", GaxProperties.getLibraryVersion(FlowsStubSettings.class))
+        .setTransportToken(
+            GaxGrpcProperties.getGrpcTokenName(), GaxGrpcProperties.getGrpcVersion());
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected FlowsStubSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+
+    createFlowSettings = settingsBuilder.createFlowSettings().build();
+    deleteFlowSettings = settingsBuilder.deleteFlowSettings().build();
+    listFlowsSettings = settingsBuilder.listFlowsSettings().build();
+    getFlowSettings = settingsBuilder.getFlowSettings().build();
+    updateFlowSettings = settingsBuilder.updateFlowSettings().build();
+    trainFlowSettings = settingsBuilder.trainFlowSettings().build();
+    trainFlowOperationSettings = settingsBuilder.trainFlowOperationSettings().build();
+  }
+
+  private static final PagedListDescriptor<ListFlowsRequest, ListFlowsResponse, Flow>
+      LIST_FLOWS_PAGE_STR_DESC =
+          new PagedListDescriptor<ListFlowsRequest, ListFlowsResponse, Flow>() {
+            @Override
+            public String emptyToken() {
+              return "";
+            }
+
+            @Override
+            public ListFlowsRequest injectToken(ListFlowsRequest payload, String token) {
+              return ListFlowsRequest.newBuilder(payload).setPageToken(token).build();
+            }
+
+            @Override
+            public ListFlowsRequest injectPageSize(ListFlowsRequest payload, int pageSize) {
+              return ListFlowsRequest.newBuilder(payload).setPageSize(pageSize).build();
+            }
+
+            @Override
+            public Integer extractPageSize(ListFlowsRequest payload) {
+              return payload.getPageSize();
+            }
+
+            @Override
+            public String extractNextToken(ListFlowsResponse payload) {
+              return payload.getNextPageToken();
+            }
+
+            @Override
+            public Iterable<Flow> extractResources(ListFlowsResponse payload) {
+              return payload.getFlowsList() != null
+                  ? payload.getFlowsList()
+                  : ImmutableList.<Flow>of();
+            }
+          };
+
+  private static final PagedListResponseFactory<
+          ListFlowsRequest, ListFlowsResponse, ListFlowsPagedResponse>
+      LIST_FLOWS_PAGE_STR_FACT =
+          new PagedListResponseFactory<
+              ListFlowsRequest, ListFlowsResponse, ListFlowsPagedResponse>() {
+            @Override
+            public ApiFuture<ListFlowsPagedResponse> getFuturePagedResponse(
+                UnaryCallable<ListFlowsRequest, ListFlowsResponse> callable,
+                ListFlowsRequest request,
+                ApiCallContext context,
+                ApiFuture<ListFlowsResponse> futureResponse) {
+              PageContext<ListFlowsRequest, ListFlowsResponse, Flow> pageContext =
+                  PageContext.create(callable, LIST_FLOWS_PAGE_STR_DESC, request, context);
+              return ListFlowsPagedResponse.createAsync(pageContext, futureResponse);
+            }
+          };
+
+  /** Builder for FlowsStubSettings. */
+  public static class Builder extends StubSettings.Builder<FlowsStubSettings, Builder> {
+    private final ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders;
+
+    private final UnaryCallSettings.Builder<CreateFlowRequest, Flow> createFlowSettings;
+    private final UnaryCallSettings.Builder<DeleteFlowRequest, Empty> deleteFlowSettings;
+    private final PagedCallSettings.Builder<
+            ListFlowsRequest, ListFlowsResponse, ListFlowsPagedResponse>
+        listFlowsSettings;
+    private final UnaryCallSettings.Builder<GetFlowRequest, Flow> getFlowSettings;
+    private final UnaryCallSettings.Builder<UpdateFlowRequest, Flow> updateFlowSettings;
+    private final UnaryCallSettings.Builder<TrainFlowRequest, Operation> trainFlowSettings;
+    private final OperationCallSettings.Builder<TrainFlowRequest, Empty, Struct>
+        trainFlowOperationSettings;
+
+    private static final ImmutableMap<String, ImmutableSet<StatusCode.Code>>
+        RETRYABLE_CODE_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, ImmutableSet<StatusCode.Code>> definitions =
+          ImmutableMap.builder();
+      definitions.put(
+          "retry_policy_1_codes",
+          ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList(StatusCode.Code.UNAVAILABLE)));
+      definitions.put("no_retry_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      definitions.put(
+          "retry_policy_2_codes",
+          ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList(StatusCode.Code.UNAVAILABLE)));
+      definitions.put(
+          "no_retry_1_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      RETRYABLE_CODE_DEFINITIONS = definitions.build();
+    }
+
+    private static final ImmutableMap<String, RetrySettings> RETRY_PARAM_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, RetrySettings> definitions = ImmutableMap.builder();
+      RetrySettings settings = null;
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(60000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(60000L))
+              .setTotalTimeout(Duration.ofMillis(60000L))
+              .build();
+      definitions.put("retry_policy_1_params", settings);
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(220000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(220000L))
+              .setTotalTimeout(Duration.ofMillis(220000L))
+              .build();
+      definitions.put("retry_policy_2_params", settings);
+      settings = RetrySettings.newBuilder().setRpcTimeoutMultiplier(1.0).build();
+      definitions.put("no_retry_params", settings);
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRpcTimeout(Duration.ofMillis(220000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(220000L))
+              .setTotalTimeout(Duration.ofMillis(220000L))
+              .build();
+      definitions.put("no_retry_1_params", settings);
+      RETRY_PARAM_DEFINITIONS = definitions.build();
+    }
+
+    protected Builder() {
+      this((ClientContext) null);
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(clientContext);
+
+      createFlowSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      deleteFlowSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      listFlowsSettings = PagedCallSettings.newBuilder(LIST_FLOWS_PAGE_STR_FACT);
+
+      getFlowSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      updateFlowSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      trainFlowSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      trainFlowOperationSettings = OperationCallSettings.newBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              createFlowSettings,
+              deleteFlowSettings,
+              listFlowsSettings,
+              getFlowSettings,
+              updateFlowSettings,
+              trainFlowSettings);
+
+      initDefaults(this);
+    }
+
+    private static Builder createDefault() {
+      Builder builder = new Builder((ClientContext) null);
+      builder.setTransportChannelProvider(defaultTransportChannelProvider());
+      builder.setCredentialsProvider(defaultCredentialsProviderBuilder().build());
+      builder.setInternalHeaderProvider(defaultApiClientHeaderProviderBuilder().build());
+      builder.setEndpoint(getDefaultEndpoint());
+      return initDefaults(builder);
+    }
+
+    private static Builder initDefaults(Builder builder) {
+
+      builder
+          .createFlowSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .deleteFlowSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .listFlowsSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .getFlowSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .updateFlowSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .trainFlowSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+      builder
+          .trainFlowOperationSettings()
+          .setInitialCallSettings(
+              UnaryCallSettings.<TrainFlowRequest, OperationSnapshot>newUnaryCallSettingsBuilder()
+                  .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+                  .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"))
+                  .build())
+          .setResponseTransformer(
+              ProtoOperationTransformers.ResponseTransformer.create(Empty.class))
+          .setMetadataTransformer(
+              ProtoOperationTransformers.MetadataTransformer.create(Struct.class))
+          .setPollingAlgorithm(
+              OperationTimedPollAlgorithm.create(
+                  RetrySettings.newBuilder()
+                      .setInitialRetryDelay(Duration.ofMillis(500L))
+                      .setRetryDelayMultiplier(1.5)
+                      .setMaxRetryDelay(Duration.ofMillis(5000L))
+                      .setInitialRpcTimeout(Duration.ZERO) // ignored
+                      .setRpcTimeoutMultiplier(1.0) // ignored
+                      .setMaxRpcTimeout(Duration.ZERO) // ignored
+                      .setTotalTimeout(Duration.ofMillis(300000L))
+                      .build()));
+
+      return builder;
+    }
+
+    protected Builder(FlowsStubSettings settings) {
+      super(settings);
+
+      createFlowSettings = settings.createFlowSettings.toBuilder();
+      deleteFlowSettings = settings.deleteFlowSettings.toBuilder();
+      listFlowsSettings = settings.listFlowsSettings.toBuilder();
+      getFlowSettings = settings.getFlowSettings.toBuilder();
+      updateFlowSettings = settings.updateFlowSettings.toBuilder();
+      trainFlowSettings = settings.trainFlowSettings.toBuilder();
+      trainFlowOperationSettings = settings.trainFlowOperationSettings.toBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              createFlowSettings,
+              deleteFlowSettings,
+              listFlowsSettings,
+              getFlowSettings,
+              updateFlowSettings,
+              trainFlowSettings);
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(unaryMethodSettingsBuilders, settingsUpdater);
+      return this;
+    }
+
+    public ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders() {
+      return unaryMethodSettingsBuilders;
+    }
+
+    /** Returns the builder for the settings used for calls to createFlow. */
+    public UnaryCallSettings.Builder<CreateFlowRequest, Flow> createFlowSettings() {
+      return createFlowSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to deleteFlow. */
+    public UnaryCallSettings.Builder<DeleteFlowRequest, Empty> deleteFlowSettings() {
+      return deleteFlowSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to listFlows. */
+    public PagedCallSettings.Builder<ListFlowsRequest, ListFlowsResponse, ListFlowsPagedResponse>
+        listFlowsSettings() {
+      return listFlowsSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to getFlow. */
+    public UnaryCallSettings.Builder<GetFlowRequest, Flow> getFlowSettings() {
+      return getFlowSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to updateFlow. */
+    public UnaryCallSettings.Builder<UpdateFlowRequest, Flow> updateFlowSettings() {
+      return updateFlowSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to trainFlow. */
+    public UnaryCallSettings.Builder<TrainFlowRequest, Operation> trainFlowSettings() {
+      return trainFlowSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to trainFlow. */
+    @BetaApi(
+        "The surface for use by generated code is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<TrainFlowRequest, Empty, Struct>
+        trainFlowOperationSettings() {
+      return trainFlowOperationSettings;
+    }
+
+    @Override
+    public FlowsStubSettings build() throws IOException {
+      return new FlowsStubSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcAgentsCallableFactory.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcAgentsCallableFactory.java
new file mode 100644
index 000000000..89e559871
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcAgentsCallableFactory.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcCallableFactory;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.BatchingCallSettings;
+import com.google.api.gax.rpc.BidiStreamingCallable;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientStreamingCallable;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallable;
+import com.google.api.gax.rpc.StreamingCallSettings;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.longrunning.stub.OperationsStub;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * gRPC callable factory implementation for Dialogflow API.
+ *
+ * <p>This class is for advanced usage.
+ */
+@Generated("by gapic-generator")
+@BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+public class GrpcAgentsCallableFactory implements GrpcStubCallableFactory {
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createUnaryCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      UnaryCallSettings<RequestT, ResponseT> callSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createUnaryCallable(grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT, PagedListResponseT>
+      UnaryCallable<RequestT, PagedListResponseT> createPagedCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          PagedCallSettings<RequestT, ResponseT, PagedListResponseT> pagedCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createPagedCallable(
+        grpcCallSettings, pagedCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createBatchingCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      BatchingCallSettings<RequestT, ResponseT> batchingCallSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createBatchingCallable(
+        grpcCallSettings, batchingCallSettings, clientContext);
+  }
+
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  @Override
+  public <RequestT, ResponseT, MetadataT>
+      OperationCallable<RequestT, ResponseT, MetadataT> createOperationCallable(
+          GrpcCallSettings<RequestT, com.google.longrunning.Operation> grpcCallSettings,
+          OperationCallSettings<RequestT, ResponseT, MetadataT> operationCallSettings,
+          ClientContext clientContext,
+          OperationsStub operationsStub) {
+    return GrpcCallableFactory.createOperationCallable(
+        grpcCallSettings, operationCallSettings, clientContext, operationsStub);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      BidiStreamingCallable<RequestT, ResponseT> createBidiStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createBidiStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ServerStreamingCallable<RequestT, ResponseT> createServerStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          ServerStreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createServerStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ClientStreamingCallable<RequestT, ResponseT> createClientStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createClientStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcAgentsStub.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcAgentsStub.java
new file mode 100644
index 000000000..ae15184d4
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcAgentsStub.java
@@ -0,0 +1,374 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.AgentsClient.ListAgentsPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.core.BackgroundResourceAggregation;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.RequestParamsExtractor;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.Agent;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest;
+import com.google.common.collect.ImmutableMap;
+import com.google.longrunning.Operation;
+import com.google.longrunning.stub.GrpcOperationsStub;
+import com.google.protobuf.Empty;
+import com.google.protobuf.Struct;
+import io.grpc.MethodDescriptor;
+import io.grpc.protobuf.ProtoUtils;
+import java.io.IOException;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * gRPC stub implementation for Dialogflow API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator")
+@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+public class GrpcAgentsStub extends AgentsStub {
+
+  private static final MethodDescriptor<ListAgentsRequest, ListAgentsResponse>
+      listAgentsMethodDescriptor =
+          MethodDescriptor.<ListAgentsRequest, ListAgentsResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Agents/ListAgents")
+              .setRequestMarshaller(ProtoUtils.marshaller(ListAgentsRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(ListAgentsResponse.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<GetAgentRequest, Agent> getAgentMethodDescriptor =
+      MethodDescriptor.<GetAgentRequest, Agent>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Agents/GetAgent")
+          .setRequestMarshaller(ProtoUtils.marshaller(GetAgentRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Agent.getDefaultInstance()))
+          .build();
+  private static final MethodDescriptor<CreateAgentRequest, Agent> createAgentMethodDescriptor =
+      MethodDescriptor.<CreateAgentRequest, Agent>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Agents/CreateAgent")
+          .setRequestMarshaller(ProtoUtils.marshaller(CreateAgentRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Agent.getDefaultInstance()))
+          .build();
+  private static final MethodDescriptor<UpdateAgentRequest, Agent> updateAgentMethodDescriptor =
+      MethodDescriptor.<UpdateAgentRequest, Agent>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Agents/UpdateAgent")
+          .setRequestMarshaller(ProtoUtils.marshaller(UpdateAgentRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Agent.getDefaultInstance()))
+          .build();
+  private static final MethodDescriptor<DeleteAgentRequest, Empty> deleteAgentMethodDescriptor =
+      MethodDescriptor.<DeleteAgentRequest, Empty>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Agents/DeleteAgent")
+          .setRequestMarshaller(ProtoUtils.marshaller(DeleteAgentRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Empty.getDefaultInstance()))
+          .build();
+  private static final MethodDescriptor<ExportAgentRequest, Operation> exportAgentMethodDescriptor =
+      MethodDescriptor.<ExportAgentRequest, Operation>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Agents/ExportAgent")
+          .setRequestMarshaller(ProtoUtils.marshaller(ExportAgentRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Operation.getDefaultInstance()))
+          .build();
+  private static final MethodDescriptor<RestoreAgentRequest, Operation>
+      restoreAgentMethodDescriptor =
+          MethodDescriptor.<RestoreAgentRequest, Operation>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Agents/RestoreAgent")
+              .setRequestMarshaller(ProtoUtils.marshaller(RestoreAgentRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(Operation.getDefaultInstance()))
+              .build();
+
+  private final BackgroundResource backgroundResources;
+  private final GrpcOperationsStub operationsStub;
+
+  private final UnaryCallable<ListAgentsRequest, ListAgentsResponse> listAgentsCallable;
+  private final UnaryCallable<ListAgentsRequest, ListAgentsPagedResponse> listAgentsPagedCallable;
+  private final UnaryCallable<GetAgentRequest, Agent> getAgentCallable;
+  private final UnaryCallable<CreateAgentRequest, Agent> createAgentCallable;
+  private final UnaryCallable<UpdateAgentRequest, Agent> updateAgentCallable;
+  private final UnaryCallable<DeleteAgentRequest, Empty> deleteAgentCallable;
+  private final UnaryCallable<ExportAgentRequest, Operation> exportAgentCallable;
+  private final OperationCallable<ExportAgentRequest, ExportAgentResponse, Struct>
+      exportAgentOperationCallable;
+  private final UnaryCallable<RestoreAgentRequest, Operation> restoreAgentCallable;
+  private final OperationCallable<RestoreAgentRequest, Empty, Struct> restoreAgentOperationCallable;
+
+  private final GrpcStubCallableFactory callableFactory;
+
+  public static final GrpcAgentsStub create(AgentsStubSettings settings) throws IOException {
+    return new GrpcAgentsStub(settings, ClientContext.create(settings));
+  }
+
+  public static final GrpcAgentsStub create(ClientContext clientContext) throws IOException {
+    return new GrpcAgentsStub(AgentsStubSettings.newBuilder().build(), clientContext);
+  }
+
+  public static final GrpcAgentsStub create(
+      ClientContext clientContext, GrpcStubCallableFactory callableFactory) throws IOException {
+    return new GrpcAgentsStub(
+        AgentsStubSettings.newBuilder().build(), clientContext, callableFactory);
+  }
+
+  /**
+   * Constructs an instance of GrpcAgentsStub, using the given settings. This is protected so that
+   * it is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected GrpcAgentsStub(AgentsStubSettings settings, ClientContext clientContext)
+      throws IOException {
+    this(settings, clientContext, new GrpcAgentsCallableFactory());
+  }
+
+  /**
+   * Constructs an instance of GrpcAgentsStub, using the given settings. This is protected so that
+   * it is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected GrpcAgentsStub(
+      AgentsStubSettings settings,
+      ClientContext clientContext,
+      GrpcStubCallableFactory callableFactory)
+      throws IOException {
+    this.callableFactory = callableFactory;
+    this.operationsStub = GrpcOperationsStub.create(clientContext, callableFactory);
+
+    GrpcCallSettings<ListAgentsRequest, ListAgentsResponse> listAgentsTransportSettings =
+        GrpcCallSettings.<ListAgentsRequest, ListAgentsResponse>newBuilder()
+            .setMethodDescriptor(listAgentsMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<ListAgentsRequest>() {
+                  @Override
+                  public Map<String, String> extract(ListAgentsRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("parent", String.valueOf(request.getParent()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<GetAgentRequest, Agent> getAgentTransportSettings =
+        GrpcCallSettings.<GetAgentRequest, Agent>newBuilder()
+            .setMethodDescriptor(getAgentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<GetAgentRequest>() {
+                  @Override
+                  public Map<String, String> extract(GetAgentRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<CreateAgentRequest, Agent> createAgentTransportSettings =
+        GrpcCallSettings.<CreateAgentRequest, Agent>newBuilder()
+            .setMethodDescriptor(createAgentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<CreateAgentRequest>() {
+                  @Override
+                  public Map<String, String> extract(CreateAgentRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("parent", String.valueOf(request.getParent()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<UpdateAgentRequest, Agent> updateAgentTransportSettings =
+        GrpcCallSettings.<UpdateAgentRequest, Agent>newBuilder()
+            .setMethodDescriptor(updateAgentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<UpdateAgentRequest>() {
+                  @Override
+                  public Map<String, String> extract(UpdateAgentRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("agent.name", String.valueOf(request.getAgent().getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<DeleteAgentRequest, Empty> deleteAgentTransportSettings =
+        GrpcCallSettings.<DeleteAgentRequest, Empty>newBuilder()
+            .setMethodDescriptor(deleteAgentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<DeleteAgentRequest>() {
+                  @Override
+                  public Map<String, String> extract(DeleteAgentRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<ExportAgentRequest, Operation> exportAgentTransportSettings =
+        GrpcCallSettings.<ExportAgentRequest, Operation>newBuilder()
+            .setMethodDescriptor(exportAgentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<ExportAgentRequest>() {
+                  @Override
+                  public Map<String, String> extract(ExportAgentRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<RestoreAgentRequest, Operation> restoreAgentTransportSettings =
+        GrpcCallSettings.<RestoreAgentRequest, Operation>newBuilder()
+            .setMethodDescriptor(restoreAgentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<RestoreAgentRequest>() {
+                  @Override
+                  public Map<String, String> extract(RestoreAgentRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+
+    this.listAgentsCallable =
+        callableFactory.createUnaryCallable(
+            listAgentsTransportSettings, settings.listAgentsSettings(), clientContext);
+    this.listAgentsPagedCallable =
+        callableFactory.createPagedCallable(
+            listAgentsTransportSettings, settings.listAgentsSettings(), clientContext);
+    this.getAgentCallable =
+        callableFactory.createUnaryCallable(
+            getAgentTransportSettings, settings.getAgentSettings(), clientContext);
+    this.createAgentCallable =
+        callableFactory.createUnaryCallable(
+            createAgentTransportSettings, settings.createAgentSettings(), clientContext);
+    this.updateAgentCallable =
+        callableFactory.createUnaryCallable(
+            updateAgentTransportSettings, settings.updateAgentSettings(), clientContext);
+    this.deleteAgentCallable =
+        callableFactory.createUnaryCallable(
+            deleteAgentTransportSettings, settings.deleteAgentSettings(), clientContext);
+    this.exportAgentCallable =
+        callableFactory.createUnaryCallable(
+            exportAgentTransportSettings, settings.exportAgentSettings(), clientContext);
+    this.exportAgentOperationCallable =
+        callableFactory.createOperationCallable(
+            exportAgentTransportSettings,
+            settings.exportAgentOperationSettings(),
+            clientContext,
+            this.operationsStub);
+    this.restoreAgentCallable =
+        callableFactory.createUnaryCallable(
+            restoreAgentTransportSettings, settings.restoreAgentSettings(), clientContext);
+    this.restoreAgentOperationCallable =
+        callableFactory.createOperationCallable(
+            restoreAgentTransportSettings,
+            settings.restoreAgentOperationSettings(),
+            clientContext,
+            this.operationsStub);
+
+    backgroundResources = new BackgroundResourceAggregation(clientContext.getBackgroundResources());
+  }
+
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public GrpcOperationsStub getOperationsStub() {
+    return operationsStub;
+  }
+
+  public UnaryCallable<ListAgentsRequest, ListAgentsPagedResponse> listAgentsPagedCallable() {
+    return listAgentsPagedCallable;
+  }
+
+  public UnaryCallable<ListAgentsRequest, ListAgentsResponse> listAgentsCallable() {
+    return listAgentsCallable;
+  }
+
+  public UnaryCallable<GetAgentRequest, Agent> getAgentCallable() {
+    return getAgentCallable;
+  }
+
+  public UnaryCallable<CreateAgentRequest, Agent> createAgentCallable() {
+    return createAgentCallable;
+  }
+
+  public UnaryCallable<UpdateAgentRequest, Agent> updateAgentCallable() {
+    return updateAgentCallable;
+  }
+
+  public UnaryCallable<DeleteAgentRequest, Empty> deleteAgentCallable() {
+    return deleteAgentCallable;
+  }
+
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationCallable<ExportAgentRequest, ExportAgentResponse, Struct>
+      exportAgentOperationCallable() {
+    return exportAgentOperationCallable;
+  }
+
+  public UnaryCallable<ExportAgentRequest, Operation> exportAgentCallable() {
+    return exportAgentCallable;
+  }
+
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationCallable<RestoreAgentRequest, Empty, Struct> restoreAgentOperationCallable() {
+    return restoreAgentOperationCallable;
+  }
+
+  public UnaryCallable<RestoreAgentRequest, Operation> restoreAgentCallable() {
+    return restoreAgentCallable;
+  }
+
+  @Override
+  public final void close() {
+    shutdown();
+  }
+
+  @Override
+  public void shutdown() {
+    backgroundResources.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return backgroundResources.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return backgroundResources.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    backgroundResources.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return backgroundResources.awaitTermination(duration, unit);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcEntityTypesCallableFactory.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcEntityTypesCallableFactory.java
new file mode 100644
index 000000000..d6497a060
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcEntityTypesCallableFactory.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcCallableFactory;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.BatchingCallSettings;
+import com.google.api.gax.rpc.BidiStreamingCallable;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientStreamingCallable;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallable;
+import com.google.api.gax.rpc.StreamingCallSettings;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.longrunning.stub.OperationsStub;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * gRPC callable factory implementation for Dialogflow API.
+ *
+ * <p>This class is for advanced usage.
+ */
+@Generated("by gapic-generator")
+@BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+public class GrpcEntityTypesCallableFactory implements GrpcStubCallableFactory {
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createUnaryCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      UnaryCallSettings<RequestT, ResponseT> callSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createUnaryCallable(grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT, PagedListResponseT>
+      UnaryCallable<RequestT, PagedListResponseT> createPagedCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          PagedCallSettings<RequestT, ResponseT, PagedListResponseT> pagedCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createPagedCallable(
+        grpcCallSettings, pagedCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createBatchingCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      BatchingCallSettings<RequestT, ResponseT> batchingCallSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createBatchingCallable(
+        grpcCallSettings, batchingCallSettings, clientContext);
+  }
+
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  @Override
+  public <RequestT, ResponseT, MetadataT>
+      OperationCallable<RequestT, ResponseT, MetadataT> createOperationCallable(
+          GrpcCallSettings<RequestT, com.google.longrunning.Operation> grpcCallSettings,
+          OperationCallSettings<RequestT, ResponseT, MetadataT> operationCallSettings,
+          ClientContext clientContext,
+          OperationsStub operationsStub) {
+    return GrpcCallableFactory.createOperationCallable(
+        grpcCallSettings, operationCallSettings, clientContext, operationsStub);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      BidiStreamingCallable<RequestT, ResponseT> createBidiStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createBidiStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ServerStreamingCallable<RequestT, ResponseT> createServerStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          ServerStreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createServerStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ClientStreamingCallable<RequestT, ResponseT> createClientStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createClientStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcEntityTypesStub.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcEntityTypesStub.java
new file mode 100644
index 000000000..ae1cfb1a5
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcEntityTypesStub.java
@@ -0,0 +1,295 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.EntityTypesClient.ListEntityTypesPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.core.BackgroundResourceAggregation;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.RequestParamsExtractor;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.EntityType;
+import com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest;
+import com.google.common.collect.ImmutableMap;
+import com.google.protobuf.Empty;
+import io.grpc.MethodDescriptor;
+import io.grpc.protobuf.ProtoUtils;
+import java.io.IOException;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * gRPC stub implementation for Dialogflow API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator")
+@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+public class GrpcEntityTypesStub extends EntityTypesStub {
+
+  private static final MethodDescriptor<ListEntityTypesRequest, ListEntityTypesResponse>
+      listEntityTypesMethodDescriptor =
+          MethodDescriptor.<ListEntityTypesRequest, ListEntityTypesResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.EntityTypes/ListEntityTypes")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(ListEntityTypesRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(ListEntityTypesResponse.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<GetEntityTypeRequest, EntityType>
+      getEntityTypeMethodDescriptor =
+          MethodDescriptor.<GetEntityTypeRequest, EntityType>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.EntityTypes/GetEntityType")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(GetEntityTypeRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(EntityType.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<CreateEntityTypeRequest, EntityType>
+      createEntityTypeMethodDescriptor =
+          MethodDescriptor.<CreateEntityTypeRequest, EntityType>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.EntityTypes/CreateEntityType")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(CreateEntityTypeRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(EntityType.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<UpdateEntityTypeRequest, EntityType>
+      updateEntityTypeMethodDescriptor =
+          MethodDescriptor.<UpdateEntityTypeRequest, EntityType>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.EntityTypes/UpdateEntityType")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(UpdateEntityTypeRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(EntityType.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<DeleteEntityTypeRequest, Empty>
+      deleteEntityTypeMethodDescriptor =
+          MethodDescriptor.<DeleteEntityTypeRequest, Empty>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.EntityTypes/DeleteEntityType")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(DeleteEntityTypeRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(Empty.getDefaultInstance()))
+              .build();
+
+  private final BackgroundResource backgroundResources;
+
+  private final UnaryCallable<ListEntityTypesRequest, ListEntityTypesResponse>
+      listEntityTypesCallable;
+  private final UnaryCallable<ListEntityTypesRequest, ListEntityTypesPagedResponse>
+      listEntityTypesPagedCallable;
+  private final UnaryCallable<GetEntityTypeRequest, EntityType> getEntityTypeCallable;
+  private final UnaryCallable<CreateEntityTypeRequest, EntityType> createEntityTypeCallable;
+  private final UnaryCallable<UpdateEntityTypeRequest, EntityType> updateEntityTypeCallable;
+  private final UnaryCallable<DeleteEntityTypeRequest, Empty> deleteEntityTypeCallable;
+
+  private final GrpcStubCallableFactory callableFactory;
+
+  public static final GrpcEntityTypesStub create(EntityTypesStubSettings settings)
+      throws IOException {
+    return new GrpcEntityTypesStub(settings, ClientContext.create(settings));
+  }
+
+  public static final GrpcEntityTypesStub create(ClientContext clientContext) throws IOException {
+    return new GrpcEntityTypesStub(EntityTypesStubSettings.newBuilder().build(), clientContext);
+  }
+
+  public static final GrpcEntityTypesStub create(
+      ClientContext clientContext, GrpcStubCallableFactory callableFactory) throws IOException {
+    return new GrpcEntityTypesStub(
+        EntityTypesStubSettings.newBuilder().build(), clientContext, callableFactory);
+  }
+
+  /**
+   * Constructs an instance of GrpcEntityTypesStub, using the given settings. This is protected so
+   * that it is easy to make a subclass, but otherwise, the static factory methods should be
+   * preferred.
+   */
+  protected GrpcEntityTypesStub(EntityTypesStubSettings settings, ClientContext clientContext)
+      throws IOException {
+    this(settings, clientContext, new GrpcEntityTypesCallableFactory());
+  }
+
+  /**
+   * Constructs an instance of GrpcEntityTypesStub, using the given settings. This is protected so
+   * that it is easy to make a subclass, but otherwise, the static factory methods should be
+   * preferred.
+   */
+  protected GrpcEntityTypesStub(
+      EntityTypesStubSettings settings,
+      ClientContext clientContext,
+      GrpcStubCallableFactory callableFactory)
+      throws IOException {
+    this.callableFactory = callableFactory;
+
+    GrpcCallSettings<ListEntityTypesRequest, ListEntityTypesResponse>
+        listEntityTypesTransportSettings =
+            GrpcCallSettings.<ListEntityTypesRequest, ListEntityTypesResponse>newBuilder()
+                .setMethodDescriptor(listEntityTypesMethodDescriptor)
+                .setParamsExtractor(
+                    new RequestParamsExtractor<ListEntityTypesRequest>() {
+                      @Override
+                      public Map<String, String> extract(ListEntityTypesRequest request) {
+                        ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                        params.put("parent", String.valueOf(request.getParent()));
+                        return params.build();
+                      }
+                    })
+                .build();
+    GrpcCallSettings<GetEntityTypeRequest, EntityType> getEntityTypeTransportSettings =
+        GrpcCallSettings.<GetEntityTypeRequest, EntityType>newBuilder()
+            .setMethodDescriptor(getEntityTypeMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<GetEntityTypeRequest>() {
+                  @Override
+                  public Map<String, String> extract(GetEntityTypeRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<CreateEntityTypeRequest, EntityType> createEntityTypeTransportSettings =
+        GrpcCallSettings.<CreateEntityTypeRequest, EntityType>newBuilder()
+            .setMethodDescriptor(createEntityTypeMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<CreateEntityTypeRequest>() {
+                  @Override
+                  public Map<String, String> extract(CreateEntityTypeRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("parent", String.valueOf(request.getParent()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<UpdateEntityTypeRequest, EntityType> updateEntityTypeTransportSettings =
+        GrpcCallSettings.<UpdateEntityTypeRequest, EntityType>newBuilder()
+            .setMethodDescriptor(updateEntityTypeMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<UpdateEntityTypeRequest>() {
+                  @Override
+                  public Map<String, String> extract(UpdateEntityTypeRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put(
+                        "entity_type.name", String.valueOf(request.getEntityType().getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<DeleteEntityTypeRequest, Empty> deleteEntityTypeTransportSettings =
+        GrpcCallSettings.<DeleteEntityTypeRequest, Empty>newBuilder()
+            .setMethodDescriptor(deleteEntityTypeMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<DeleteEntityTypeRequest>() {
+                  @Override
+                  public Map<String, String> extract(DeleteEntityTypeRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+
+    this.listEntityTypesCallable =
+        callableFactory.createUnaryCallable(
+            listEntityTypesTransportSettings, settings.listEntityTypesSettings(), clientContext);
+    this.listEntityTypesPagedCallable =
+        callableFactory.createPagedCallable(
+            listEntityTypesTransportSettings, settings.listEntityTypesSettings(), clientContext);
+    this.getEntityTypeCallable =
+        callableFactory.createUnaryCallable(
+            getEntityTypeTransportSettings, settings.getEntityTypeSettings(), clientContext);
+    this.createEntityTypeCallable =
+        callableFactory.createUnaryCallable(
+            createEntityTypeTransportSettings, settings.createEntityTypeSettings(), clientContext);
+    this.updateEntityTypeCallable =
+        callableFactory.createUnaryCallable(
+            updateEntityTypeTransportSettings, settings.updateEntityTypeSettings(), clientContext);
+    this.deleteEntityTypeCallable =
+        callableFactory.createUnaryCallable(
+            deleteEntityTypeTransportSettings, settings.deleteEntityTypeSettings(), clientContext);
+
+    backgroundResources = new BackgroundResourceAggregation(clientContext.getBackgroundResources());
+  }
+
+  public UnaryCallable<ListEntityTypesRequest, ListEntityTypesPagedResponse>
+      listEntityTypesPagedCallable() {
+    return listEntityTypesPagedCallable;
+  }
+
+  public UnaryCallable<ListEntityTypesRequest, ListEntityTypesResponse> listEntityTypesCallable() {
+    return listEntityTypesCallable;
+  }
+
+  public UnaryCallable<GetEntityTypeRequest, EntityType> getEntityTypeCallable() {
+    return getEntityTypeCallable;
+  }
+
+  public UnaryCallable<CreateEntityTypeRequest, EntityType> createEntityTypeCallable() {
+    return createEntityTypeCallable;
+  }
+
+  public UnaryCallable<UpdateEntityTypeRequest, EntityType> updateEntityTypeCallable() {
+    return updateEntityTypeCallable;
+  }
+
+  public UnaryCallable<DeleteEntityTypeRequest, Empty> deleteEntityTypeCallable() {
+    return deleteEntityTypeCallable;
+  }
+
+  @Override
+  public final void close() {
+    shutdown();
+  }
+
+  @Override
+  public void shutdown() {
+    backgroundResources.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return backgroundResources.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return backgroundResources.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    backgroundResources.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return backgroundResources.awaitTermination(duration, unit);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcEnvironmentsCallableFactory.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcEnvironmentsCallableFactory.java
new file mode 100644
index 000000000..f1a353163
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcEnvironmentsCallableFactory.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcCallableFactory;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.BatchingCallSettings;
+import com.google.api.gax.rpc.BidiStreamingCallable;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientStreamingCallable;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallable;
+import com.google.api.gax.rpc.StreamingCallSettings;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.longrunning.stub.OperationsStub;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * gRPC callable factory implementation for Dialogflow API.
+ *
+ * <p>This class is for advanced usage.
+ */
+@Generated("by gapic-generator")
+@BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+public class GrpcEnvironmentsCallableFactory implements GrpcStubCallableFactory {
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createUnaryCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      UnaryCallSettings<RequestT, ResponseT> callSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createUnaryCallable(grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT, PagedListResponseT>
+      UnaryCallable<RequestT, PagedListResponseT> createPagedCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          PagedCallSettings<RequestT, ResponseT, PagedListResponseT> pagedCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createPagedCallable(
+        grpcCallSettings, pagedCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createBatchingCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      BatchingCallSettings<RequestT, ResponseT> batchingCallSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createBatchingCallable(
+        grpcCallSettings, batchingCallSettings, clientContext);
+  }
+
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  @Override
+  public <RequestT, ResponseT, MetadataT>
+      OperationCallable<RequestT, ResponseT, MetadataT> createOperationCallable(
+          GrpcCallSettings<RequestT, com.google.longrunning.Operation> grpcCallSettings,
+          OperationCallSettings<RequestT, ResponseT, MetadataT> operationCallSettings,
+          ClientContext clientContext,
+          OperationsStub operationsStub) {
+    return GrpcCallableFactory.createOperationCallable(
+        grpcCallSettings, operationCallSettings, clientContext, operationsStub);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      BidiStreamingCallable<RequestT, ResponseT> createBidiStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createBidiStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ServerStreamingCallable<RequestT, ResponseT> createServerStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          ServerStreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createServerStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ClientStreamingCallable<RequestT, ResponseT> createClientStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createClientStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcEnvironmentsStub.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcEnvironmentsStub.java
new file mode 100644
index 000000000..2a5593435
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcEnvironmentsStub.java
@@ -0,0 +1,400 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.EnvironmentsClient.ListEnvironmentsPagedResponse;
+import static com.google.cloud.dialogflow.cx.v3beta1.EnvironmentsClient.LookupEnvironmentHistoryPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.core.BackgroundResourceAggregation;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.RequestParamsExtractor;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.Environment;
+import com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest;
+import com.google.common.collect.ImmutableMap;
+import com.google.longrunning.Operation;
+import com.google.longrunning.stub.GrpcOperationsStub;
+import com.google.protobuf.Empty;
+import com.google.protobuf.Struct;
+import io.grpc.MethodDescriptor;
+import io.grpc.protobuf.ProtoUtils;
+import java.io.IOException;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * gRPC stub implementation for Dialogflow API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator")
+@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+public class GrpcEnvironmentsStub extends EnvironmentsStub {
+
+  private static final MethodDescriptor<ListEnvironmentsRequest, ListEnvironmentsResponse>
+      listEnvironmentsMethodDescriptor =
+          MethodDescriptor.<ListEnvironmentsRequest, ListEnvironmentsResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Environments/ListEnvironments")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(ListEnvironmentsRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(ListEnvironmentsResponse.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<GetEnvironmentRequest, Environment>
+      getEnvironmentMethodDescriptor =
+          MethodDescriptor.<GetEnvironmentRequest, Environment>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Environments/GetEnvironment")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(GetEnvironmentRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(Environment.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<CreateEnvironmentRequest, Operation>
+      createEnvironmentMethodDescriptor =
+          MethodDescriptor.<CreateEnvironmentRequest, Operation>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(
+                  "google.cloud.dialogflow.cx.v3beta1.Environments/CreateEnvironment")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(CreateEnvironmentRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(Operation.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<UpdateEnvironmentRequest, Operation>
+      updateEnvironmentMethodDescriptor =
+          MethodDescriptor.<UpdateEnvironmentRequest, Operation>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(
+                  "google.cloud.dialogflow.cx.v3beta1.Environments/UpdateEnvironment")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(UpdateEnvironmentRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(Operation.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<DeleteEnvironmentRequest, Empty>
+      deleteEnvironmentMethodDescriptor =
+          MethodDescriptor.<DeleteEnvironmentRequest, Empty>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(
+                  "google.cloud.dialogflow.cx.v3beta1.Environments/DeleteEnvironment")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(DeleteEnvironmentRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(Empty.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<
+          LookupEnvironmentHistoryRequest, LookupEnvironmentHistoryResponse>
+      lookupEnvironmentHistoryMethodDescriptor =
+          MethodDescriptor
+              .<LookupEnvironmentHistoryRequest, LookupEnvironmentHistoryResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(
+                  "google.cloud.dialogflow.cx.v3beta1.Environments/LookupEnvironmentHistory")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(LookupEnvironmentHistoryRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(LookupEnvironmentHistoryResponse.getDefaultInstance()))
+              .build();
+
+  private final BackgroundResource backgroundResources;
+  private final GrpcOperationsStub operationsStub;
+
+  private final UnaryCallable<ListEnvironmentsRequest, ListEnvironmentsResponse>
+      listEnvironmentsCallable;
+  private final UnaryCallable<ListEnvironmentsRequest, ListEnvironmentsPagedResponse>
+      listEnvironmentsPagedCallable;
+  private final UnaryCallable<GetEnvironmentRequest, Environment> getEnvironmentCallable;
+  private final UnaryCallable<CreateEnvironmentRequest, Operation> createEnvironmentCallable;
+  private final OperationCallable<CreateEnvironmentRequest, Environment, Struct>
+      createEnvironmentOperationCallable;
+  private final UnaryCallable<UpdateEnvironmentRequest, Operation> updateEnvironmentCallable;
+  private final OperationCallable<UpdateEnvironmentRequest, Environment, Struct>
+      updateEnvironmentOperationCallable;
+  private final UnaryCallable<DeleteEnvironmentRequest, Empty> deleteEnvironmentCallable;
+  private final UnaryCallable<LookupEnvironmentHistoryRequest, LookupEnvironmentHistoryResponse>
+      lookupEnvironmentHistoryCallable;
+  private final UnaryCallable<
+          LookupEnvironmentHistoryRequest, LookupEnvironmentHistoryPagedResponse>
+      lookupEnvironmentHistoryPagedCallable;
+
+  private final GrpcStubCallableFactory callableFactory;
+
+  public static final GrpcEnvironmentsStub create(EnvironmentsStubSettings settings)
+      throws IOException {
+    return new GrpcEnvironmentsStub(settings, ClientContext.create(settings));
+  }
+
+  public static final GrpcEnvironmentsStub create(ClientContext clientContext) throws IOException {
+    return new GrpcEnvironmentsStub(EnvironmentsStubSettings.newBuilder().build(), clientContext);
+  }
+
+  public static final GrpcEnvironmentsStub create(
+      ClientContext clientContext, GrpcStubCallableFactory callableFactory) throws IOException {
+    return new GrpcEnvironmentsStub(
+        EnvironmentsStubSettings.newBuilder().build(), clientContext, callableFactory);
+  }
+
+  /**
+   * Constructs an instance of GrpcEnvironmentsStub, using the given settings. This is protected so
+   * that it is easy to make a subclass, but otherwise, the static factory methods should be
+   * preferred.
+   */
+  protected GrpcEnvironmentsStub(EnvironmentsStubSettings settings, ClientContext clientContext)
+      throws IOException {
+    this(settings, clientContext, new GrpcEnvironmentsCallableFactory());
+  }
+
+  /**
+   * Constructs an instance of GrpcEnvironmentsStub, using the given settings. This is protected so
+   * that it is easy to make a subclass, but otherwise, the static factory methods should be
+   * preferred.
+   */
+  protected GrpcEnvironmentsStub(
+      EnvironmentsStubSettings settings,
+      ClientContext clientContext,
+      GrpcStubCallableFactory callableFactory)
+      throws IOException {
+    this.callableFactory = callableFactory;
+    this.operationsStub = GrpcOperationsStub.create(clientContext, callableFactory);
+
+    GrpcCallSettings<ListEnvironmentsRequest, ListEnvironmentsResponse>
+        listEnvironmentsTransportSettings =
+            GrpcCallSettings.<ListEnvironmentsRequest, ListEnvironmentsResponse>newBuilder()
+                .setMethodDescriptor(listEnvironmentsMethodDescriptor)
+                .setParamsExtractor(
+                    new RequestParamsExtractor<ListEnvironmentsRequest>() {
+                      @Override
+                      public Map<String, String> extract(ListEnvironmentsRequest request) {
+                        ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                        params.put("parent", String.valueOf(request.getParent()));
+                        return params.build();
+                      }
+                    })
+                .build();
+    GrpcCallSettings<GetEnvironmentRequest, Environment> getEnvironmentTransportSettings =
+        GrpcCallSettings.<GetEnvironmentRequest, Environment>newBuilder()
+            .setMethodDescriptor(getEnvironmentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<GetEnvironmentRequest>() {
+                  @Override
+                  public Map<String, String> extract(GetEnvironmentRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<CreateEnvironmentRequest, Operation> createEnvironmentTransportSettings =
+        GrpcCallSettings.<CreateEnvironmentRequest, Operation>newBuilder()
+            .setMethodDescriptor(createEnvironmentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<CreateEnvironmentRequest>() {
+                  @Override
+                  public Map<String, String> extract(CreateEnvironmentRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("parent", String.valueOf(request.getParent()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<UpdateEnvironmentRequest, Operation> updateEnvironmentTransportSettings =
+        GrpcCallSettings.<UpdateEnvironmentRequest, Operation>newBuilder()
+            .setMethodDescriptor(updateEnvironmentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<UpdateEnvironmentRequest>() {
+                  @Override
+                  public Map<String, String> extract(UpdateEnvironmentRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put(
+                        "environment.name", String.valueOf(request.getEnvironment().getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<DeleteEnvironmentRequest, Empty> deleteEnvironmentTransportSettings =
+        GrpcCallSettings.<DeleteEnvironmentRequest, Empty>newBuilder()
+            .setMethodDescriptor(deleteEnvironmentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<DeleteEnvironmentRequest>() {
+                  @Override
+                  public Map<String, String> extract(DeleteEnvironmentRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<LookupEnvironmentHistoryRequest, LookupEnvironmentHistoryResponse>
+        lookupEnvironmentHistoryTransportSettings =
+            GrpcCallSettings
+                .<LookupEnvironmentHistoryRequest, LookupEnvironmentHistoryResponse>newBuilder()
+                .setMethodDescriptor(lookupEnvironmentHistoryMethodDescriptor)
+                .setParamsExtractor(
+                    new RequestParamsExtractor<LookupEnvironmentHistoryRequest>() {
+                      @Override
+                      public Map<String, String> extract(LookupEnvironmentHistoryRequest request) {
+                        ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                        params.put("name", String.valueOf(request.getName()));
+                        return params.build();
+                      }
+                    })
+                .build();
+
+    this.listEnvironmentsCallable =
+        callableFactory.createUnaryCallable(
+            listEnvironmentsTransportSettings, settings.listEnvironmentsSettings(), clientContext);
+    this.listEnvironmentsPagedCallable =
+        callableFactory.createPagedCallable(
+            listEnvironmentsTransportSettings, settings.listEnvironmentsSettings(), clientContext);
+    this.getEnvironmentCallable =
+        callableFactory.createUnaryCallable(
+            getEnvironmentTransportSettings, settings.getEnvironmentSettings(), clientContext);
+    this.createEnvironmentCallable =
+        callableFactory.createUnaryCallable(
+            createEnvironmentTransportSettings,
+            settings.createEnvironmentSettings(),
+            clientContext);
+    this.createEnvironmentOperationCallable =
+        callableFactory.createOperationCallable(
+            createEnvironmentTransportSettings,
+            settings.createEnvironmentOperationSettings(),
+            clientContext,
+            this.operationsStub);
+    this.updateEnvironmentCallable =
+        callableFactory.createUnaryCallable(
+            updateEnvironmentTransportSettings,
+            settings.updateEnvironmentSettings(),
+            clientContext);
+    this.updateEnvironmentOperationCallable =
+        callableFactory.createOperationCallable(
+            updateEnvironmentTransportSettings,
+            settings.updateEnvironmentOperationSettings(),
+            clientContext,
+            this.operationsStub);
+    this.deleteEnvironmentCallable =
+        callableFactory.createUnaryCallable(
+            deleteEnvironmentTransportSettings,
+            settings.deleteEnvironmentSettings(),
+            clientContext);
+    this.lookupEnvironmentHistoryCallable =
+        callableFactory.createUnaryCallable(
+            lookupEnvironmentHistoryTransportSettings,
+            settings.lookupEnvironmentHistorySettings(),
+            clientContext);
+    this.lookupEnvironmentHistoryPagedCallable =
+        callableFactory.createPagedCallable(
+            lookupEnvironmentHistoryTransportSettings,
+            settings.lookupEnvironmentHistorySettings(),
+            clientContext);
+
+    backgroundResources = new BackgroundResourceAggregation(clientContext.getBackgroundResources());
+  }
+
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public GrpcOperationsStub getOperationsStub() {
+    return operationsStub;
+  }
+
+  public UnaryCallable<ListEnvironmentsRequest, ListEnvironmentsPagedResponse>
+      listEnvironmentsPagedCallable() {
+    return listEnvironmentsPagedCallable;
+  }
+
+  public UnaryCallable<ListEnvironmentsRequest, ListEnvironmentsResponse>
+      listEnvironmentsCallable() {
+    return listEnvironmentsCallable;
+  }
+
+  public UnaryCallable<GetEnvironmentRequest, Environment> getEnvironmentCallable() {
+    return getEnvironmentCallable;
+  }
+
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationCallable<CreateEnvironmentRequest, Environment, Struct>
+      createEnvironmentOperationCallable() {
+    return createEnvironmentOperationCallable;
+  }
+
+  public UnaryCallable<CreateEnvironmentRequest, Operation> createEnvironmentCallable() {
+    return createEnvironmentCallable;
+  }
+
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationCallable<UpdateEnvironmentRequest, Environment, Struct>
+      updateEnvironmentOperationCallable() {
+    return updateEnvironmentOperationCallable;
+  }
+
+  public UnaryCallable<UpdateEnvironmentRequest, Operation> updateEnvironmentCallable() {
+    return updateEnvironmentCallable;
+  }
+
+  public UnaryCallable<DeleteEnvironmentRequest, Empty> deleteEnvironmentCallable() {
+    return deleteEnvironmentCallable;
+  }
+
+  public UnaryCallable<LookupEnvironmentHistoryRequest, LookupEnvironmentHistoryPagedResponse>
+      lookupEnvironmentHistoryPagedCallable() {
+    return lookupEnvironmentHistoryPagedCallable;
+  }
+
+  public UnaryCallable<LookupEnvironmentHistoryRequest, LookupEnvironmentHistoryResponse>
+      lookupEnvironmentHistoryCallable() {
+    return lookupEnvironmentHistoryCallable;
+  }
+
+  @Override
+  public final void close() {
+    shutdown();
+  }
+
+  @Override
+  public void shutdown() {
+    backgroundResources.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return backgroundResources.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return backgroundResources.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    backgroundResources.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return backgroundResources.awaitTermination(duration, unit);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcFlowsCallableFactory.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcFlowsCallableFactory.java
new file mode 100644
index 000000000..a8da24a56
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcFlowsCallableFactory.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcCallableFactory;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.BatchingCallSettings;
+import com.google.api.gax.rpc.BidiStreamingCallable;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientStreamingCallable;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallable;
+import com.google.api.gax.rpc.StreamingCallSettings;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.longrunning.stub.OperationsStub;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * gRPC callable factory implementation for Dialogflow API.
+ *
+ * <p>This class is for advanced usage.
+ */
+@Generated("by gapic-generator")
+@BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+public class GrpcFlowsCallableFactory implements GrpcStubCallableFactory {
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createUnaryCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      UnaryCallSettings<RequestT, ResponseT> callSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createUnaryCallable(grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT, PagedListResponseT>
+      UnaryCallable<RequestT, PagedListResponseT> createPagedCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          PagedCallSettings<RequestT, ResponseT, PagedListResponseT> pagedCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createPagedCallable(
+        grpcCallSettings, pagedCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createBatchingCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      BatchingCallSettings<RequestT, ResponseT> batchingCallSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createBatchingCallable(
+        grpcCallSettings, batchingCallSettings, clientContext);
+  }
+
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  @Override
+  public <RequestT, ResponseT, MetadataT>
+      OperationCallable<RequestT, ResponseT, MetadataT> createOperationCallable(
+          GrpcCallSettings<RequestT, com.google.longrunning.Operation> grpcCallSettings,
+          OperationCallSettings<RequestT, ResponseT, MetadataT> operationCallSettings,
+          ClientContext clientContext,
+          OperationsStub operationsStub) {
+    return GrpcCallableFactory.createOperationCallable(
+        grpcCallSettings, operationCallSettings, clientContext, operationsStub);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      BidiStreamingCallable<RequestT, ResponseT> createBidiStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createBidiStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ServerStreamingCallable<RequestT, ResponseT> createServerStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          ServerStreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createServerStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ClientStreamingCallable<RequestT, ResponseT> createClientStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createClientStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcFlowsStub.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcFlowsStub.java
new file mode 100644
index 000000000..ce59e63cf
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcFlowsStub.java
@@ -0,0 +1,329 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.FlowsClient.ListFlowsPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.core.BackgroundResourceAggregation;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.RequestParamsExtractor;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.Flow;
+import com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest;
+import com.google.common.collect.ImmutableMap;
+import com.google.longrunning.Operation;
+import com.google.longrunning.stub.GrpcOperationsStub;
+import com.google.protobuf.Empty;
+import com.google.protobuf.Struct;
+import io.grpc.MethodDescriptor;
+import io.grpc.protobuf.ProtoUtils;
+import java.io.IOException;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * gRPC stub implementation for Dialogflow API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator")
+@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+public class GrpcFlowsStub extends FlowsStub {
+
+  private static final MethodDescriptor<CreateFlowRequest, Flow> createFlowMethodDescriptor =
+      MethodDescriptor.<CreateFlowRequest, Flow>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Flows/CreateFlow")
+          .setRequestMarshaller(ProtoUtils.marshaller(CreateFlowRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Flow.getDefaultInstance()))
+          .build();
+  private static final MethodDescriptor<DeleteFlowRequest, Empty> deleteFlowMethodDescriptor =
+      MethodDescriptor.<DeleteFlowRequest, Empty>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Flows/DeleteFlow")
+          .setRequestMarshaller(ProtoUtils.marshaller(DeleteFlowRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Empty.getDefaultInstance()))
+          .build();
+  private static final MethodDescriptor<ListFlowsRequest, ListFlowsResponse>
+      listFlowsMethodDescriptor =
+          MethodDescriptor.<ListFlowsRequest, ListFlowsResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Flows/ListFlows")
+              .setRequestMarshaller(ProtoUtils.marshaller(ListFlowsRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(ListFlowsResponse.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<GetFlowRequest, Flow> getFlowMethodDescriptor =
+      MethodDescriptor.<GetFlowRequest, Flow>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Flows/GetFlow")
+          .setRequestMarshaller(ProtoUtils.marshaller(GetFlowRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Flow.getDefaultInstance()))
+          .build();
+  private static final MethodDescriptor<UpdateFlowRequest, Flow> updateFlowMethodDescriptor =
+      MethodDescriptor.<UpdateFlowRequest, Flow>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Flows/UpdateFlow")
+          .setRequestMarshaller(ProtoUtils.marshaller(UpdateFlowRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Flow.getDefaultInstance()))
+          .build();
+  private static final MethodDescriptor<TrainFlowRequest, Operation> trainFlowMethodDescriptor =
+      MethodDescriptor.<TrainFlowRequest, Operation>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Flows/TrainFlow")
+          .setRequestMarshaller(ProtoUtils.marshaller(TrainFlowRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Operation.getDefaultInstance()))
+          .build();
+
+  private final BackgroundResource backgroundResources;
+  private final GrpcOperationsStub operationsStub;
+
+  private final UnaryCallable<CreateFlowRequest, Flow> createFlowCallable;
+  private final UnaryCallable<DeleteFlowRequest, Empty> deleteFlowCallable;
+  private final UnaryCallable<ListFlowsRequest, ListFlowsResponse> listFlowsCallable;
+  private final UnaryCallable<ListFlowsRequest, ListFlowsPagedResponse> listFlowsPagedCallable;
+  private final UnaryCallable<GetFlowRequest, Flow> getFlowCallable;
+  private final UnaryCallable<UpdateFlowRequest, Flow> updateFlowCallable;
+  private final UnaryCallable<TrainFlowRequest, Operation> trainFlowCallable;
+  private final OperationCallable<TrainFlowRequest, Empty, Struct> trainFlowOperationCallable;
+
+  private final GrpcStubCallableFactory callableFactory;
+
+  public static final GrpcFlowsStub create(FlowsStubSettings settings) throws IOException {
+    return new GrpcFlowsStub(settings, ClientContext.create(settings));
+  }
+
+  public static final GrpcFlowsStub create(ClientContext clientContext) throws IOException {
+    return new GrpcFlowsStub(FlowsStubSettings.newBuilder().build(), clientContext);
+  }
+
+  public static final GrpcFlowsStub create(
+      ClientContext clientContext, GrpcStubCallableFactory callableFactory) throws IOException {
+    return new GrpcFlowsStub(
+        FlowsStubSettings.newBuilder().build(), clientContext, callableFactory);
+  }
+
+  /**
+   * Constructs an instance of GrpcFlowsStub, using the given settings. This is protected so that it
+   * is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected GrpcFlowsStub(FlowsStubSettings settings, ClientContext clientContext)
+      throws IOException {
+    this(settings, clientContext, new GrpcFlowsCallableFactory());
+  }
+
+  /**
+   * Constructs an instance of GrpcFlowsStub, using the given settings. This is protected so that it
+   * is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected GrpcFlowsStub(
+      FlowsStubSettings settings,
+      ClientContext clientContext,
+      GrpcStubCallableFactory callableFactory)
+      throws IOException {
+    this.callableFactory = callableFactory;
+    this.operationsStub = GrpcOperationsStub.create(clientContext, callableFactory);
+
+    GrpcCallSettings<CreateFlowRequest, Flow> createFlowTransportSettings =
+        GrpcCallSettings.<CreateFlowRequest, Flow>newBuilder()
+            .setMethodDescriptor(createFlowMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<CreateFlowRequest>() {
+                  @Override
+                  public Map<String, String> extract(CreateFlowRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("parent", String.valueOf(request.getParent()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<DeleteFlowRequest, Empty> deleteFlowTransportSettings =
+        GrpcCallSettings.<DeleteFlowRequest, Empty>newBuilder()
+            .setMethodDescriptor(deleteFlowMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<DeleteFlowRequest>() {
+                  @Override
+                  public Map<String, String> extract(DeleteFlowRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<ListFlowsRequest, ListFlowsResponse> listFlowsTransportSettings =
+        GrpcCallSettings.<ListFlowsRequest, ListFlowsResponse>newBuilder()
+            .setMethodDescriptor(listFlowsMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<ListFlowsRequest>() {
+                  @Override
+                  public Map<String, String> extract(ListFlowsRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("parent", String.valueOf(request.getParent()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<GetFlowRequest, Flow> getFlowTransportSettings =
+        GrpcCallSettings.<GetFlowRequest, Flow>newBuilder()
+            .setMethodDescriptor(getFlowMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<GetFlowRequest>() {
+                  @Override
+                  public Map<String, String> extract(GetFlowRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<UpdateFlowRequest, Flow> updateFlowTransportSettings =
+        GrpcCallSettings.<UpdateFlowRequest, Flow>newBuilder()
+            .setMethodDescriptor(updateFlowMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<UpdateFlowRequest>() {
+                  @Override
+                  public Map<String, String> extract(UpdateFlowRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("flow.name", String.valueOf(request.getFlow().getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<TrainFlowRequest, Operation> trainFlowTransportSettings =
+        GrpcCallSettings.<TrainFlowRequest, Operation>newBuilder()
+            .setMethodDescriptor(trainFlowMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<TrainFlowRequest>() {
+                  @Override
+                  public Map<String, String> extract(TrainFlowRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+
+    this.createFlowCallable =
+        callableFactory.createUnaryCallable(
+            createFlowTransportSettings, settings.createFlowSettings(), clientContext);
+    this.deleteFlowCallable =
+        callableFactory.createUnaryCallable(
+            deleteFlowTransportSettings, settings.deleteFlowSettings(), clientContext);
+    this.listFlowsCallable =
+        callableFactory.createUnaryCallable(
+            listFlowsTransportSettings, settings.listFlowsSettings(), clientContext);
+    this.listFlowsPagedCallable =
+        callableFactory.createPagedCallable(
+            listFlowsTransportSettings, settings.listFlowsSettings(), clientContext);
+    this.getFlowCallable =
+        callableFactory.createUnaryCallable(
+            getFlowTransportSettings, settings.getFlowSettings(), clientContext);
+    this.updateFlowCallable =
+        callableFactory.createUnaryCallable(
+            updateFlowTransportSettings, settings.updateFlowSettings(), clientContext);
+    this.trainFlowCallable =
+        callableFactory.createUnaryCallable(
+            trainFlowTransportSettings, settings.trainFlowSettings(), clientContext);
+    this.trainFlowOperationCallable =
+        callableFactory.createOperationCallable(
+            trainFlowTransportSettings,
+            settings.trainFlowOperationSettings(),
+            clientContext,
+            this.operationsStub);
+
+    backgroundResources = new BackgroundResourceAggregation(clientContext.getBackgroundResources());
+  }
+
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public GrpcOperationsStub getOperationsStub() {
+    return operationsStub;
+  }
+
+  public UnaryCallable<CreateFlowRequest, Flow> createFlowCallable() {
+    return createFlowCallable;
+  }
+
+  public UnaryCallable<DeleteFlowRequest, Empty> deleteFlowCallable() {
+    return deleteFlowCallable;
+  }
+
+  public UnaryCallable<ListFlowsRequest, ListFlowsPagedResponse> listFlowsPagedCallable() {
+    return listFlowsPagedCallable;
+  }
+
+  public UnaryCallable<ListFlowsRequest, ListFlowsResponse> listFlowsCallable() {
+    return listFlowsCallable;
+  }
+
+  public UnaryCallable<GetFlowRequest, Flow> getFlowCallable() {
+    return getFlowCallable;
+  }
+
+  public UnaryCallable<UpdateFlowRequest, Flow> updateFlowCallable() {
+    return updateFlowCallable;
+  }
+
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationCallable<TrainFlowRequest, Empty, Struct> trainFlowOperationCallable() {
+    return trainFlowOperationCallable;
+  }
+
+  public UnaryCallable<TrainFlowRequest, Operation> trainFlowCallable() {
+    return trainFlowCallable;
+  }
+
+  @Override
+  public final void close() {
+    shutdown();
+  }
+
+  @Override
+  public void shutdown() {
+    backgroundResources.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return backgroundResources.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return backgroundResources.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    backgroundResources.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return backgroundResources.awaitTermination(duration, unit);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcIntentsCallableFactory.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcIntentsCallableFactory.java
new file mode 100644
index 000000000..60ad87cf6
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcIntentsCallableFactory.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcCallableFactory;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.BatchingCallSettings;
+import com.google.api.gax.rpc.BidiStreamingCallable;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientStreamingCallable;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallable;
+import com.google.api.gax.rpc.StreamingCallSettings;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.longrunning.stub.OperationsStub;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * gRPC callable factory implementation for Dialogflow API.
+ *
+ * <p>This class is for advanced usage.
+ */
+@Generated("by gapic-generator")
+@BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+public class GrpcIntentsCallableFactory implements GrpcStubCallableFactory {
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createUnaryCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      UnaryCallSettings<RequestT, ResponseT> callSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createUnaryCallable(grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT, PagedListResponseT>
+      UnaryCallable<RequestT, PagedListResponseT> createPagedCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          PagedCallSettings<RequestT, ResponseT, PagedListResponseT> pagedCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createPagedCallable(
+        grpcCallSettings, pagedCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createBatchingCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      BatchingCallSettings<RequestT, ResponseT> batchingCallSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createBatchingCallable(
+        grpcCallSettings, batchingCallSettings, clientContext);
+  }
+
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  @Override
+  public <RequestT, ResponseT, MetadataT>
+      OperationCallable<RequestT, ResponseT, MetadataT> createOperationCallable(
+          GrpcCallSettings<RequestT, com.google.longrunning.Operation> grpcCallSettings,
+          OperationCallSettings<RequestT, ResponseT, MetadataT> operationCallSettings,
+          ClientContext clientContext,
+          OperationsStub operationsStub) {
+    return GrpcCallableFactory.createOperationCallable(
+        grpcCallSettings, operationCallSettings, clientContext, operationsStub);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      BidiStreamingCallable<RequestT, ResponseT> createBidiStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createBidiStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ServerStreamingCallable<RequestT, ResponseT> createServerStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          ServerStreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createServerStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ClientStreamingCallable<RequestT, ResponseT> createClientStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createClientStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcIntentsStub.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcIntentsStub.java
new file mode 100644
index 000000000..cffb6c868
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcIntentsStub.java
@@ -0,0 +1,279 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.IntentsClient.ListIntentsPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.core.BackgroundResourceAggregation;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.RequestParamsExtractor;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.Intent;
+import com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest;
+import com.google.common.collect.ImmutableMap;
+import com.google.protobuf.Empty;
+import io.grpc.MethodDescriptor;
+import io.grpc.protobuf.ProtoUtils;
+import java.io.IOException;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * gRPC stub implementation for Dialogflow API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator")
+@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+public class GrpcIntentsStub extends IntentsStub {
+
+  private static final MethodDescriptor<ListIntentsRequest, ListIntentsResponse>
+      listIntentsMethodDescriptor =
+          MethodDescriptor.<ListIntentsRequest, ListIntentsResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Intents/ListIntents")
+              .setRequestMarshaller(ProtoUtils.marshaller(ListIntentsRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(ListIntentsResponse.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<GetIntentRequest, Intent> getIntentMethodDescriptor =
+      MethodDescriptor.<GetIntentRequest, Intent>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Intents/GetIntent")
+          .setRequestMarshaller(ProtoUtils.marshaller(GetIntentRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Intent.getDefaultInstance()))
+          .build();
+  private static final MethodDescriptor<CreateIntentRequest, Intent> createIntentMethodDescriptor =
+      MethodDescriptor.<CreateIntentRequest, Intent>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Intents/CreateIntent")
+          .setRequestMarshaller(ProtoUtils.marshaller(CreateIntentRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Intent.getDefaultInstance()))
+          .build();
+  private static final MethodDescriptor<UpdateIntentRequest, Intent> updateIntentMethodDescriptor =
+      MethodDescriptor.<UpdateIntentRequest, Intent>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Intents/UpdateIntent")
+          .setRequestMarshaller(ProtoUtils.marshaller(UpdateIntentRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Intent.getDefaultInstance()))
+          .build();
+  private static final MethodDescriptor<DeleteIntentRequest, Empty> deleteIntentMethodDescriptor =
+      MethodDescriptor.<DeleteIntentRequest, Empty>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Intents/DeleteIntent")
+          .setRequestMarshaller(ProtoUtils.marshaller(DeleteIntentRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Empty.getDefaultInstance()))
+          .build();
+
+  private final BackgroundResource backgroundResources;
+
+  private final UnaryCallable<ListIntentsRequest, ListIntentsResponse> listIntentsCallable;
+  private final UnaryCallable<ListIntentsRequest, ListIntentsPagedResponse>
+      listIntentsPagedCallable;
+  private final UnaryCallable<GetIntentRequest, Intent> getIntentCallable;
+  private final UnaryCallable<CreateIntentRequest, Intent> createIntentCallable;
+  private final UnaryCallable<UpdateIntentRequest, Intent> updateIntentCallable;
+  private final UnaryCallable<DeleteIntentRequest, Empty> deleteIntentCallable;
+
+  private final GrpcStubCallableFactory callableFactory;
+
+  public static final GrpcIntentsStub create(IntentsStubSettings settings) throws IOException {
+    return new GrpcIntentsStub(settings, ClientContext.create(settings));
+  }
+
+  public static final GrpcIntentsStub create(ClientContext clientContext) throws IOException {
+    return new GrpcIntentsStub(IntentsStubSettings.newBuilder().build(), clientContext);
+  }
+
+  public static final GrpcIntentsStub create(
+      ClientContext clientContext, GrpcStubCallableFactory callableFactory) throws IOException {
+    return new GrpcIntentsStub(
+        IntentsStubSettings.newBuilder().build(), clientContext, callableFactory);
+  }
+
+  /**
+   * Constructs an instance of GrpcIntentsStub, using the given settings. This is protected so that
+   * it is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected GrpcIntentsStub(IntentsStubSettings settings, ClientContext clientContext)
+      throws IOException {
+    this(settings, clientContext, new GrpcIntentsCallableFactory());
+  }
+
+  /**
+   * Constructs an instance of GrpcIntentsStub, using the given settings. This is protected so that
+   * it is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected GrpcIntentsStub(
+      IntentsStubSettings settings,
+      ClientContext clientContext,
+      GrpcStubCallableFactory callableFactory)
+      throws IOException {
+    this.callableFactory = callableFactory;
+
+    GrpcCallSettings<ListIntentsRequest, ListIntentsResponse> listIntentsTransportSettings =
+        GrpcCallSettings.<ListIntentsRequest, ListIntentsResponse>newBuilder()
+            .setMethodDescriptor(listIntentsMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<ListIntentsRequest>() {
+                  @Override
+                  public Map<String, String> extract(ListIntentsRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("parent", String.valueOf(request.getParent()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<GetIntentRequest, Intent> getIntentTransportSettings =
+        GrpcCallSettings.<GetIntentRequest, Intent>newBuilder()
+            .setMethodDescriptor(getIntentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<GetIntentRequest>() {
+                  @Override
+                  public Map<String, String> extract(GetIntentRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<CreateIntentRequest, Intent> createIntentTransportSettings =
+        GrpcCallSettings.<CreateIntentRequest, Intent>newBuilder()
+            .setMethodDescriptor(createIntentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<CreateIntentRequest>() {
+                  @Override
+                  public Map<String, String> extract(CreateIntentRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("parent", String.valueOf(request.getParent()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<UpdateIntentRequest, Intent> updateIntentTransportSettings =
+        GrpcCallSettings.<UpdateIntentRequest, Intent>newBuilder()
+            .setMethodDescriptor(updateIntentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<UpdateIntentRequest>() {
+                  @Override
+                  public Map<String, String> extract(UpdateIntentRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("intent.name", String.valueOf(request.getIntent().getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<DeleteIntentRequest, Empty> deleteIntentTransportSettings =
+        GrpcCallSettings.<DeleteIntentRequest, Empty>newBuilder()
+            .setMethodDescriptor(deleteIntentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<DeleteIntentRequest>() {
+                  @Override
+                  public Map<String, String> extract(DeleteIntentRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+
+    this.listIntentsCallable =
+        callableFactory.createUnaryCallable(
+            listIntentsTransportSettings, settings.listIntentsSettings(), clientContext);
+    this.listIntentsPagedCallable =
+        callableFactory.createPagedCallable(
+            listIntentsTransportSettings, settings.listIntentsSettings(), clientContext);
+    this.getIntentCallable =
+        callableFactory.createUnaryCallable(
+            getIntentTransportSettings, settings.getIntentSettings(), clientContext);
+    this.createIntentCallable =
+        callableFactory.createUnaryCallable(
+            createIntentTransportSettings, settings.createIntentSettings(), clientContext);
+    this.updateIntentCallable =
+        callableFactory.createUnaryCallable(
+            updateIntentTransportSettings, settings.updateIntentSettings(), clientContext);
+    this.deleteIntentCallable =
+        callableFactory.createUnaryCallable(
+            deleteIntentTransportSettings, settings.deleteIntentSettings(), clientContext);
+
+    backgroundResources = new BackgroundResourceAggregation(clientContext.getBackgroundResources());
+  }
+
+  public UnaryCallable<ListIntentsRequest, ListIntentsPagedResponse> listIntentsPagedCallable() {
+    return listIntentsPagedCallable;
+  }
+
+  public UnaryCallable<ListIntentsRequest, ListIntentsResponse> listIntentsCallable() {
+    return listIntentsCallable;
+  }
+
+  public UnaryCallable<GetIntentRequest, Intent> getIntentCallable() {
+    return getIntentCallable;
+  }
+
+  public UnaryCallable<CreateIntentRequest, Intent> createIntentCallable() {
+    return createIntentCallable;
+  }
+
+  public UnaryCallable<UpdateIntentRequest, Intent> updateIntentCallable() {
+    return updateIntentCallable;
+  }
+
+  public UnaryCallable<DeleteIntentRequest, Empty> deleteIntentCallable() {
+    return deleteIntentCallable;
+  }
+
+  @Override
+  public final void close() {
+    shutdown();
+  }
+
+  @Override
+  public void shutdown() {
+    backgroundResources.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return backgroundResources.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return backgroundResources.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    backgroundResources.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return backgroundResources.awaitTermination(duration, unit);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcPagesCallableFactory.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcPagesCallableFactory.java
new file mode 100644
index 000000000..2f4206067
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcPagesCallableFactory.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcCallableFactory;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.BatchingCallSettings;
+import com.google.api.gax.rpc.BidiStreamingCallable;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientStreamingCallable;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallable;
+import com.google.api.gax.rpc.StreamingCallSettings;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.longrunning.stub.OperationsStub;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * gRPC callable factory implementation for Dialogflow API.
+ *
+ * <p>This class is for advanced usage.
+ */
+@Generated("by gapic-generator")
+@BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+public class GrpcPagesCallableFactory implements GrpcStubCallableFactory {
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createUnaryCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      UnaryCallSettings<RequestT, ResponseT> callSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createUnaryCallable(grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT, PagedListResponseT>
+      UnaryCallable<RequestT, PagedListResponseT> createPagedCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          PagedCallSettings<RequestT, ResponseT, PagedListResponseT> pagedCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createPagedCallable(
+        grpcCallSettings, pagedCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createBatchingCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      BatchingCallSettings<RequestT, ResponseT> batchingCallSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createBatchingCallable(
+        grpcCallSettings, batchingCallSettings, clientContext);
+  }
+
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  @Override
+  public <RequestT, ResponseT, MetadataT>
+      OperationCallable<RequestT, ResponseT, MetadataT> createOperationCallable(
+          GrpcCallSettings<RequestT, com.google.longrunning.Operation> grpcCallSettings,
+          OperationCallSettings<RequestT, ResponseT, MetadataT> operationCallSettings,
+          ClientContext clientContext,
+          OperationsStub operationsStub) {
+    return GrpcCallableFactory.createOperationCallable(
+        grpcCallSettings, operationCallSettings, clientContext, operationsStub);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      BidiStreamingCallable<RequestT, ResponseT> createBidiStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createBidiStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ServerStreamingCallable<RequestT, ResponseT> createServerStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          ServerStreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createServerStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ClientStreamingCallable<RequestT, ResponseT> createClientStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createClientStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcPagesStub.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcPagesStub.java
new file mode 100644
index 000000000..b9caf90ba
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcPagesStub.java
@@ -0,0 +1,277 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.PagesClient.ListPagesPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.core.BackgroundResourceAggregation;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.RequestParamsExtractor;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.Page;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest;
+import com.google.common.collect.ImmutableMap;
+import com.google.protobuf.Empty;
+import io.grpc.MethodDescriptor;
+import io.grpc.protobuf.ProtoUtils;
+import java.io.IOException;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * gRPC stub implementation for Dialogflow API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator")
+@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+public class GrpcPagesStub extends PagesStub {
+
+  private static final MethodDescriptor<ListPagesRequest, ListPagesResponse>
+      listPagesMethodDescriptor =
+          MethodDescriptor.<ListPagesRequest, ListPagesResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Pages/ListPages")
+              .setRequestMarshaller(ProtoUtils.marshaller(ListPagesRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(ListPagesResponse.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<GetPageRequest, Page> getPageMethodDescriptor =
+      MethodDescriptor.<GetPageRequest, Page>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Pages/GetPage")
+          .setRequestMarshaller(ProtoUtils.marshaller(GetPageRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Page.getDefaultInstance()))
+          .build();
+  private static final MethodDescriptor<CreatePageRequest, Page> createPageMethodDescriptor =
+      MethodDescriptor.<CreatePageRequest, Page>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Pages/CreatePage")
+          .setRequestMarshaller(ProtoUtils.marshaller(CreatePageRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Page.getDefaultInstance()))
+          .build();
+  private static final MethodDescriptor<UpdatePageRequest, Page> updatePageMethodDescriptor =
+      MethodDescriptor.<UpdatePageRequest, Page>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Pages/UpdatePage")
+          .setRequestMarshaller(ProtoUtils.marshaller(UpdatePageRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Page.getDefaultInstance()))
+          .build();
+  private static final MethodDescriptor<DeletePageRequest, Empty> deletePageMethodDescriptor =
+      MethodDescriptor.<DeletePageRequest, Empty>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Pages/DeletePage")
+          .setRequestMarshaller(ProtoUtils.marshaller(DeletePageRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Empty.getDefaultInstance()))
+          .build();
+
+  private final BackgroundResource backgroundResources;
+
+  private final UnaryCallable<ListPagesRequest, ListPagesResponse> listPagesCallable;
+  private final UnaryCallable<ListPagesRequest, ListPagesPagedResponse> listPagesPagedCallable;
+  private final UnaryCallable<GetPageRequest, Page> getPageCallable;
+  private final UnaryCallable<CreatePageRequest, Page> createPageCallable;
+  private final UnaryCallable<UpdatePageRequest, Page> updatePageCallable;
+  private final UnaryCallable<DeletePageRequest, Empty> deletePageCallable;
+
+  private final GrpcStubCallableFactory callableFactory;
+
+  public static final GrpcPagesStub create(PagesStubSettings settings) throws IOException {
+    return new GrpcPagesStub(settings, ClientContext.create(settings));
+  }
+
+  public static final GrpcPagesStub create(ClientContext clientContext) throws IOException {
+    return new GrpcPagesStub(PagesStubSettings.newBuilder().build(), clientContext);
+  }
+
+  public static final GrpcPagesStub create(
+      ClientContext clientContext, GrpcStubCallableFactory callableFactory) throws IOException {
+    return new GrpcPagesStub(
+        PagesStubSettings.newBuilder().build(), clientContext, callableFactory);
+  }
+
+  /**
+   * Constructs an instance of GrpcPagesStub, using the given settings. This is protected so that it
+   * is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected GrpcPagesStub(PagesStubSettings settings, ClientContext clientContext)
+      throws IOException {
+    this(settings, clientContext, new GrpcPagesCallableFactory());
+  }
+
+  /**
+   * Constructs an instance of GrpcPagesStub, using the given settings. This is protected so that it
+   * is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected GrpcPagesStub(
+      PagesStubSettings settings,
+      ClientContext clientContext,
+      GrpcStubCallableFactory callableFactory)
+      throws IOException {
+    this.callableFactory = callableFactory;
+
+    GrpcCallSettings<ListPagesRequest, ListPagesResponse> listPagesTransportSettings =
+        GrpcCallSettings.<ListPagesRequest, ListPagesResponse>newBuilder()
+            .setMethodDescriptor(listPagesMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<ListPagesRequest>() {
+                  @Override
+                  public Map<String, String> extract(ListPagesRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("parent", String.valueOf(request.getParent()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<GetPageRequest, Page> getPageTransportSettings =
+        GrpcCallSettings.<GetPageRequest, Page>newBuilder()
+            .setMethodDescriptor(getPageMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<GetPageRequest>() {
+                  @Override
+                  public Map<String, String> extract(GetPageRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<CreatePageRequest, Page> createPageTransportSettings =
+        GrpcCallSettings.<CreatePageRequest, Page>newBuilder()
+            .setMethodDescriptor(createPageMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<CreatePageRequest>() {
+                  @Override
+                  public Map<String, String> extract(CreatePageRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("parent", String.valueOf(request.getParent()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<UpdatePageRequest, Page> updatePageTransportSettings =
+        GrpcCallSettings.<UpdatePageRequest, Page>newBuilder()
+            .setMethodDescriptor(updatePageMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<UpdatePageRequest>() {
+                  @Override
+                  public Map<String, String> extract(UpdatePageRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("page.name", String.valueOf(request.getPage().getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<DeletePageRequest, Empty> deletePageTransportSettings =
+        GrpcCallSettings.<DeletePageRequest, Empty>newBuilder()
+            .setMethodDescriptor(deletePageMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<DeletePageRequest>() {
+                  @Override
+                  public Map<String, String> extract(DeletePageRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+
+    this.listPagesCallable =
+        callableFactory.createUnaryCallable(
+            listPagesTransportSettings, settings.listPagesSettings(), clientContext);
+    this.listPagesPagedCallable =
+        callableFactory.createPagedCallable(
+            listPagesTransportSettings, settings.listPagesSettings(), clientContext);
+    this.getPageCallable =
+        callableFactory.createUnaryCallable(
+            getPageTransportSettings, settings.getPageSettings(), clientContext);
+    this.createPageCallable =
+        callableFactory.createUnaryCallable(
+            createPageTransportSettings, settings.createPageSettings(), clientContext);
+    this.updatePageCallable =
+        callableFactory.createUnaryCallable(
+            updatePageTransportSettings, settings.updatePageSettings(), clientContext);
+    this.deletePageCallable =
+        callableFactory.createUnaryCallable(
+            deletePageTransportSettings, settings.deletePageSettings(), clientContext);
+
+    backgroundResources = new BackgroundResourceAggregation(clientContext.getBackgroundResources());
+  }
+
+  public UnaryCallable<ListPagesRequest, ListPagesPagedResponse> listPagesPagedCallable() {
+    return listPagesPagedCallable;
+  }
+
+  public UnaryCallable<ListPagesRequest, ListPagesResponse> listPagesCallable() {
+    return listPagesCallable;
+  }
+
+  public UnaryCallable<GetPageRequest, Page> getPageCallable() {
+    return getPageCallable;
+  }
+
+  public UnaryCallable<CreatePageRequest, Page> createPageCallable() {
+    return createPageCallable;
+  }
+
+  public UnaryCallable<UpdatePageRequest, Page> updatePageCallable() {
+    return updatePageCallable;
+  }
+
+  public UnaryCallable<DeletePageRequest, Empty> deletePageCallable() {
+    return deletePageCallable;
+  }
+
+  @Override
+  public final void close() {
+    shutdown();
+  }
+
+  @Override
+  public void shutdown() {
+    backgroundResources.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return backgroundResources.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return backgroundResources.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    backgroundResources.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return backgroundResources.awaitTermination(duration, unit);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcSessionEntityTypesCallableFactory.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcSessionEntityTypesCallableFactory.java
new file mode 100644
index 000000000..27ec996d6
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcSessionEntityTypesCallableFactory.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcCallableFactory;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.BatchingCallSettings;
+import com.google.api.gax.rpc.BidiStreamingCallable;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientStreamingCallable;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallable;
+import com.google.api.gax.rpc.StreamingCallSettings;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.longrunning.stub.OperationsStub;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * gRPC callable factory implementation for Dialogflow API.
+ *
+ * <p>This class is for advanced usage.
+ */
+@Generated("by gapic-generator")
+@BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+public class GrpcSessionEntityTypesCallableFactory implements GrpcStubCallableFactory {
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createUnaryCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      UnaryCallSettings<RequestT, ResponseT> callSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createUnaryCallable(grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT, PagedListResponseT>
+      UnaryCallable<RequestT, PagedListResponseT> createPagedCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          PagedCallSettings<RequestT, ResponseT, PagedListResponseT> pagedCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createPagedCallable(
+        grpcCallSettings, pagedCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createBatchingCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      BatchingCallSettings<RequestT, ResponseT> batchingCallSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createBatchingCallable(
+        grpcCallSettings, batchingCallSettings, clientContext);
+  }
+
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  @Override
+  public <RequestT, ResponseT, MetadataT>
+      OperationCallable<RequestT, ResponseT, MetadataT> createOperationCallable(
+          GrpcCallSettings<RequestT, com.google.longrunning.Operation> grpcCallSettings,
+          OperationCallSettings<RequestT, ResponseT, MetadataT> operationCallSettings,
+          ClientContext clientContext,
+          OperationsStub operationsStub) {
+    return GrpcCallableFactory.createOperationCallable(
+        grpcCallSettings, operationCallSettings, clientContext, operationsStub);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      BidiStreamingCallable<RequestT, ResponseT> createBidiStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createBidiStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ServerStreamingCallable<RequestT, ResponseT> createServerStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          ServerStreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createServerStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ClientStreamingCallable<RequestT, ResponseT> createClientStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createClientStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcSessionEntityTypesStub.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcSessionEntityTypesStub.java
new file mode 100644
index 000000000..5476c267c
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcSessionEntityTypesStub.java
@@ -0,0 +1,330 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypesClient.ListSessionEntityTypesPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.core.BackgroundResourceAggregation;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.RequestParamsExtractor;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest;
+import com.google.common.collect.ImmutableMap;
+import com.google.protobuf.Empty;
+import io.grpc.MethodDescriptor;
+import io.grpc.protobuf.ProtoUtils;
+import java.io.IOException;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * gRPC stub implementation for Dialogflow API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator")
+@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+public class GrpcSessionEntityTypesStub extends SessionEntityTypesStub {
+
+  private static final MethodDescriptor<
+          ListSessionEntityTypesRequest, ListSessionEntityTypesResponse>
+      listSessionEntityTypesMethodDescriptor =
+          MethodDescriptor
+              .<ListSessionEntityTypesRequest, ListSessionEntityTypesResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(
+                  "google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes/ListSessionEntityTypes")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(ListSessionEntityTypesRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(ListSessionEntityTypesResponse.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<GetSessionEntityTypeRequest, SessionEntityType>
+      getSessionEntityTypeMethodDescriptor =
+          MethodDescriptor.<GetSessionEntityTypeRequest, SessionEntityType>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(
+                  "google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes/GetSessionEntityType")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(GetSessionEntityTypeRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(SessionEntityType.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<CreateSessionEntityTypeRequest, SessionEntityType>
+      createSessionEntityTypeMethodDescriptor =
+          MethodDescriptor.<CreateSessionEntityTypeRequest, SessionEntityType>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(
+                  "google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes/CreateSessionEntityType")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(CreateSessionEntityTypeRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(SessionEntityType.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<UpdateSessionEntityTypeRequest, SessionEntityType>
+      updateSessionEntityTypeMethodDescriptor =
+          MethodDescriptor.<UpdateSessionEntityTypeRequest, SessionEntityType>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(
+                  "google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes/UpdateSessionEntityType")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(UpdateSessionEntityTypeRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(SessionEntityType.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<DeleteSessionEntityTypeRequest, Empty>
+      deleteSessionEntityTypeMethodDescriptor =
+          MethodDescriptor.<DeleteSessionEntityTypeRequest, Empty>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(
+                  "google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes/DeleteSessionEntityType")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(DeleteSessionEntityTypeRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(Empty.getDefaultInstance()))
+              .build();
+
+  private final BackgroundResource backgroundResources;
+
+  private final UnaryCallable<ListSessionEntityTypesRequest, ListSessionEntityTypesResponse>
+      listSessionEntityTypesCallable;
+  private final UnaryCallable<ListSessionEntityTypesRequest, ListSessionEntityTypesPagedResponse>
+      listSessionEntityTypesPagedCallable;
+  private final UnaryCallable<GetSessionEntityTypeRequest, SessionEntityType>
+      getSessionEntityTypeCallable;
+  private final UnaryCallable<CreateSessionEntityTypeRequest, SessionEntityType>
+      createSessionEntityTypeCallable;
+  private final UnaryCallable<UpdateSessionEntityTypeRequest, SessionEntityType>
+      updateSessionEntityTypeCallable;
+  private final UnaryCallable<DeleteSessionEntityTypeRequest, Empty>
+      deleteSessionEntityTypeCallable;
+
+  private final GrpcStubCallableFactory callableFactory;
+
+  public static final GrpcSessionEntityTypesStub create(SessionEntityTypesStubSettings settings)
+      throws IOException {
+    return new GrpcSessionEntityTypesStub(settings, ClientContext.create(settings));
+  }
+
+  public static final GrpcSessionEntityTypesStub create(ClientContext clientContext)
+      throws IOException {
+    return new GrpcSessionEntityTypesStub(
+        SessionEntityTypesStubSettings.newBuilder().build(), clientContext);
+  }
+
+  public static final GrpcSessionEntityTypesStub create(
+      ClientContext clientContext, GrpcStubCallableFactory callableFactory) throws IOException {
+    return new GrpcSessionEntityTypesStub(
+        SessionEntityTypesStubSettings.newBuilder().build(), clientContext, callableFactory);
+  }
+
+  /**
+   * Constructs an instance of GrpcSessionEntityTypesStub, using the given settings. This is
+   * protected so that it is easy to make a subclass, but otherwise, the static factory methods
+   * should be preferred.
+   */
+  protected GrpcSessionEntityTypesStub(
+      SessionEntityTypesStubSettings settings, ClientContext clientContext) throws IOException {
+    this(settings, clientContext, new GrpcSessionEntityTypesCallableFactory());
+  }
+
+  /**
+   * Constructs an instance of GrpcSessionEntityTypesStub, using the given settings. This is
+   * protected so that it is easy to make a subclass, but otherwise, the static factory methods
+   * should be preferred.
+   */
+  protected GrpcSessionEntityTypesStub(
+      SessionEntityTypesStubSettings settings,
+      ClientContext clientContext,
+      GrpcStubCallableFactory callableFactory)
+      throws IOException {
+    this.callableFactory = callableFactory;
+
+    GrpcCallSettings<ListSessionEntityTypesRequest, ListSessionEntityTypesResponse>
+        listSessionEntityTypesTransportSettings =
+            GrpcCallSettings
+                .<ListSessionEntityTypesRequest, ListSessionEntityTypesResponse>newBuilder()
+                .setMethodDescriptor(listSessionEntityTypesMethodDescriptor)
+                .setParamsExtractor(
+                    new RequestParamsExtractor<ListSessionEntityTypesRequest>() {
+                      @Override
+                      public Map<String, String> extract(ListSessionEntityTypesRequest request) {
+                        ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                        params.put("parent", String.valueOf(request.getParent()));
+                        return params.build();
+                      }
+                    })
+                .build();
+    GrpcCallSettings<GetSessionEntityTypeRequest, SessionEntityType>
+        getSessionEntityTypeTransportSettings =
+            GrpcCallSettings.<GetSessionEntityTypeRequest, SessionEntityType>newBuilder()
+                .setMethodDescriptor(getSessionEntityTypeMethodDescriptor)
+                .setParamsExtractor(
+                    new RequestParamsExtractor<GetSessionEntityTypeRequest>() {
+                      @Override
+                      public Map<String, String> extract(GetSessionEntityTypeRequest request) {
+                        ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                        params.put("name", String.valueOf(request.getName()));
+                        return params.build();
+                      }
+                    })
+                .build();
+    GrpcCallSettings<CreateSessionEntityTypeRequest, SessionEntityType>
+        createSessionEntityTypeTransportSettings =
+            GrpcCallSettings.<CreateSessionEntityTypeRequest, SessionEntityType>newBuilder()
+                .setMethodDescriptor(createSessionEntityTypeMethodDescriptor)
+                .setParamsExtractor(
+                    new RequestParamsExtractor<CreateSessionEntityTypeRequest>() {
+                      @Override
+                      public Map<String, String> extract(CreateSessionEntityTypeRequest request) {
+                        ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                        params.put("parent", String.valueOf(request.getParent()));
+                        return params.build();
+                      }
+                    })
+                .build();
+    GrpcCallSettings<UpdateSessionEntityTypeRequest, SessionEntityType>
+        updateSessionEntityTypeTransportSettings =
+            GrpcCallSettings.<UpdateSessionEntityTypeRequest, SessionEntityType>newBuilder()
+                .setMethodDescriptor(updateSessionEntityTypeMethodDescriptor)
+                .setParamsExtractor(
+                    new RequestParamsExtractor<UpdateSessionEntityTypeRequest>() {
+                      @Override
+                      public Map<String, String> extract(UpdateSessionEntityTypeRequest request) {
+                        ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                        params.put(
+                            "session_entity_type.name",
+                            String.valueOf(request.getSessionEntityType().getName()));
+                        return params.build();
+                      }
+                    })
+                .build();
+    GrpcCallSettings<DeleteSessionEntityTypeRequest, Empty>
+        deleteSessionEntityTypeTransportSettings =
+            GrpcCallSettings.<DeleteSessionEntityTypeRequest, Empty>newBuilder()
+                .setMethodDescriptor(deleteSessionEntityTypeMethodDescriptor)
+                .setParamsExtractor(
+                    new RequestParamsExtractor<DeleteSessionEntityTypeRequest>() {
+                      @Override
+                      public Map<String, String> extract(DeleteSessionEntityTypeRequest request) {
+                        ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                        params.put("name", String.valueOf(request.getName()));
+                        return params.build();
+                      }
+                    })
+                .build();
+
+    this.listSessionEntityTypesCallable =
+        callableFactory.createUnaryCallable(
+            listSessionEntityTypesTransportSettings,
+            settings.listSessionEntityTypesSettings(),
+            clientContext);
+    this.listSessionEntityTypesPagedCallable =
+        callableFactory.createPagedCallable(
+            listSessionEntityTypesTransportSettings,
+            settings.listSessionEntityTypesSettings(),
+            clientContext);
+    this.getSessionEntityTypeCallable =
+        callableFactory.createUnaryCallable(
+            getSessionEntityTypeTransportSettings,
+            settings.getSessionEntityTypeSettings(),
+            clientContext);
+    this.createSessionEntityTypeCallable =
+        callableFactory.createUnaryCallable(
+            createSessionEntityTypeTransportSettings,
+            settings.createSessionEntityTypeSettings(),
+            clientContext);
+    this.updateSessionEntityTypeCallable =
+        callableFactory.createUnaryCallable(
+            updateSessionEntityTypeTransportSettings,
+            settings.updateSessionEntityTypeSettings(),
+            clientContext);
+    this.deleteSessionEntityTypeCallable =
+        callableFactory.createUnaryCallable(
+            deleteSessionEntityTypeTransportSettings,
+            settings.deleteSessionEntityTypeSettings(),
+            clientContext);
+
+    backgroundResources = new BackgroundResourceAggregation(clientContext.getBackgroundResources());
+  }
+
+  public UnaryCallable<ListSessionEntityTypesRequest, ListSessionEntityTypesPagedResponse>
+      listSessionEntityTypesPagedCallable() {
+    return listSessionEntityTypesPagedCallable;
+  }
+
+  public UnaryCallable<ListSessionEntityTypesRequest, ListSessionEntityTypesResponse>
+      listSessionEntityTypesCallable() {
+    return listSessionEntityTypesCallable;
+  }
+
+  public UnaryCallable<GetSessionEntityTypeRequest, SessionEntityType>
+      getSessionEntityTypeCallable() {
+    return getSessionEntityTypeCallable;
+  }
+
+  public UnaryCallable<CreateSessionEntityTypeRequest, SessionEntityType>
+      createSessionEntityTypeCallable() {
+    return createSessionEntityTypeCallable;
+  }
+
+  public UnaryCallable<UpdateSessionEntityTypeRequest, SessionEntityType>
+      updateSessionEntityTypeCallable() {
+    return updateSessionEntityTypeCallable;
+  }
+
+  public UnaryCallable<DeleteSessionEntityTypeRequest, Empty> deleteSessionEntityTypeCallable() {
+    return deleteSessionEntityTypeCallable;
+  }
+
+  @Override
+  public final void close() {
+    shutdown();
+  }
+
+  @Override
+  public void shutdown() {
+    backgroundResources.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return backgroundResources.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return backgroundResources.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    backgroundResources.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return backgroundResources.awaitTermination(duration, unit);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcSessionsCallableFactory.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcSessionsCallableFactory.java
new file mode 100644
index 000000000..47122b3da
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcSessionsCallableFactory.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcCallableFactory;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.BatchingCallSettings;
+import com.google.api.gax.rpc.BidiStreamingCallable;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientStreamingCallable;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallable;
+import com.google.api.gax.rpc.StreamingCallSettings;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.longrunning.stub.OperationsStub;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * gRPC callable factory implementation for Dialogflow API.
+ *
+ * <p>This class is for advanced usage.
+ */
+@Generated("by gapic-generator")
+@BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+public class GrpcSessionsCallableFactory implements GrpcStubCallableFactory {
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createUnaryCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      UnaryCallSettings<RequestT, ResponseT> callSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createUnaryCallable(grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT, PagedListResponseT>
+      UnaryCallable<RequestT, PagedListResponseT> createPagedCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          PagedCallSettings<RequestT, ResponseT, PagedListResponseT> pagedCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createPagedCallable(
+        grpcCallSettings, pagedCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createBatchingCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      BatchingCallSettings<RequestT, ResponseT> batchingCallSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createBatchingCallable(
+        grpcCallSettings, batchingCallSettings, clientContext);
+  }
+
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  @Override
+  public <RequestT, ResponseT, MetadataT>
+      OperationCallable<RequestT, ResponseT, MetadataT> createOperationCallable(
+          GrpcCallSettings<RequestT, com.google.longrunning.Operation> grpcCallSettings,
+          OperationCallSettings<RequestT, ResponseT, MetadataT> operationCallSettings,
+          ClientContext clientContext,
+          OperationsStub operationsStub) {
+    return GrpcCallableFactory.createOperationCallable(
+        grpcCallSettings, operationCallSettings, clientContext, operationsStub);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      BidiStreamingCallable<RequestT, ResponseT> createBidiStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createBidiStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ServerStreamingCallable<RequestT, ResponseT> createServerStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          ServerStreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createServerStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ClientStreamingCallable<RequestT, ResponseT> createClientStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createClientStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcSessionsStub.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcSessionsStub.java
new file mode 100644
index 000000000..79c41c521
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcSessionsStub.java
@@ -0,0 +1,249 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.core.BackgroundResourceAggregation;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.BidiStreamingCallable;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.RequestParamsExtractor;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse;
+import com.google.common.collect.ImmutableMap;
+import io.grpc.MethodDescriptor;
+import io.grpc.protobuf.ProtoUtils;
+import java.io.IOException;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * gRPC stub implementation for Dialogflow API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator")
+@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+public class GrpcSessionsStub extends SessionsStub {
+
+  private static final MethodDescriptor<DetectIntentRequest, DetectIntentResponse>
+      detectIntentMethodDescriptor =
+          MethodDescriptor.<DetectIntentRequest, DetectIntentResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Sessions/DetectIntent")
+              .setRequestMarshaller(ProtoUtils.marshaller(DetectIntentRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(DetectIntentResponse.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<StreamingDetectIntentRequest, StreamingDetectIntentResponse>
+      streamingDetectIntentMethodDescriptor =
+          MethodDescriptor.<StreamingDetectIntentRequest, StreamingDetectIntentResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.BIDI_STREAMING)
+              .setFullMethodName(
+                  "google.cloud.dialogflow.cx.v3beta1.Sessions/StreamingDetectIntent")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(StreamingDetectIntentRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(StreamingDetectIntentResponse.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<MatchIntentRequest, MatchIntentResponse>
+      matchIntentMethodDescriptor =
+          MethodDescriptor.<MatchIntentRequest, MatchIntentResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Sessions/MatchIntent")
+              .setRequestMarshaller(ProtoUtils.marshaller(MatchIntentRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(MatchIntentResponse.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<FulfillIntentRequest, FulfillIntentResponse>
+      fulfillIntentMethodDescriptor =
+          MethodDescriptor.<FulfillIntentRequest, FulfillIntentResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Sessions/FulfillIntent")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(FulfillIntentRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(FulfillIntentResponse.getDefaultInstance()))
+              .build();
+
+  private final BackgroundResource backgroundResources;
+
+  private final UnaryCallable<DetectIntentRequest, DetectIntentResponse> detectIntentCallable;
+  private final BidiStreamingCallable<StreamingDetectIntentRequest, StreamingDetectIntentResponse>
+      streamingDetectIntentCallable;
+  private final UnaryCallable<MatchIntentRequest, MatchIntentResponse> matchIntentCallable;
+  private final UnaryCallable<FulfillIntentRequest, FulfillIntentResponse> fulfillIntentCallable;
+
+  private final GrpcStubCallableFactory callableFactory;
+
+  public static final GrpcSessionsStub create(SessionsStubSettings settings) throws IOException {
+    return new GrpcSessionsStub(settings, ClientContext.create(settings));
+  }
+
+  public static final GrpcSessionsStub create(ClientContext clientContext) throws IOException {
+    return new GrpcSessionsStub(SessionsStubSettings.newBuilder().build(), clientContext);
+  }
+
+  public static final GrpcSessionsStub create(
+      ClientContext clientContext, GrpcStubCallableFactory callableFactory) throws IOException {
+    return new GrpcSessionsStub(
+        SessionsStubSettings.newBuilder().build(), clientContext, callableFactory);
+  }
+
+  /**
+   * Constructs an instance of GrpcSessionsStub, using the given settings. This is protected so that
+   * it is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected GrpcSessionsStub(SessionsStubSettings settings, ClientContext clientContext)
+      throws IOException {
+    this(settings, clientContext, new GrpcSessionsCallableFactory());
+  }
+
+  /**
+   * Constructs an instance of GrpcSessionsStub, using the given settings. This is protected so that
+   * it is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected GrpcSessionsStub(
+      SessionsStubSettings settings,
+      ClientContext clientContext,
+      GrpcStubCallableFactory callableFactory)
+      throws IOException {
+    this.callableFactory = callableFactory;
+
+    GrpcCallSettings<DetectIntentRequest, DetectIntentResponse> detectIntentTransportSettings =
+        GrpcCallSettings.<DetectIntentRequest, DetectIntentResponse>newBuilder()
+            .setMethodDescriptor(detectIntentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<DetectIntentRequest>() {
+                  @Override
+                  public Map<String, String> extract(DetectIntentRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("session", String.valueOf(request.getSession()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<StreamingDetectIntentRequest, StreamingDetectIntentResponse>
+        streamingDetectIntentTransportSettings =
+            GrpcCallSettings
+                .<StreamingDetectIntentRequest, StreamingDetectIntentResponse>newBuilder()
+                .setMethodDescriptor(streamingDetectIntentMethodDescriptor)
+                .build();
+    GrpcCallSettings<MatchIntentRequest, MatchIntentResponse> matchIntentTransportSettings =
+        GrpcCallSettings.<MatchIntentRequest, MatchIntentResponse>newBuilder()
+            .setMethodDescriptor(matchIntentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<MatchIntentRequest>() {
+                  @Override
+                  public Map<String, String> extract(MatchIntentRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("session", String.valueOf(request.getSession()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<FulfillIntentRequest, FulfillIntentResponse> fulfillIntentTransportSettings =
+        GrpcCallSettings.<FulfillIntentRequest, FulfillIntentResponse>newBuilder()
+            .setMethodDescriptor(fulfillIntentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<FulfillIntentRequest>() {
+                  @Override
+                  public Map<String, String> extract(FulfillIntentRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put(
+                        "match_intent_request.session",
+                        String.valueOf(request.getMatchIntentRequest().getSession()));
+                    return params.build();
+                  }
+                })
+            .build();
+
+    this.detectIntentCallable =
+        callableFactory.createUnaryCallable(
+            detectIntentTransportSettings, settings.detectIntentSettings(), clientContext);
+    this.streamingDetectIntentCallable =
+        callableFactory.createBidiStreamingCallable(
+            streamingDetectIntentTransportSettings,
+            settings.streamingDetectIntentSettings(),
+            clientContext);
+    this.matchIntentCallable =
+        callableFactory.createUnaryCallable(
+            matchIntentTransportSettings, settings.matchIntentSettings(), clientContext);
+    this.fulfillIntentCallable =
+        callableFactory.createUnaryCallable(
+            fulfillIntentTransportSettings, settings.fulfillIntentSettings(), clientContext);
+
+    backgroundResources = new BackgroundResourceAggregation(clientContext.getBackgroundResources());
+  }
+
+  public UnaryCallable<DetectIntentRequest, DetectIntentResponse> detectIntentCallable() {
+    return detectIntentCallable;
+  }
+
+  public BidiStreamingCallable<StreamingDetectIntentRequest, StreamingDetectIntentResponse>
+      streamingDetectIntentCallable() {
+    return streamingDetectIntentCallable;
+  }
+
+  public UnaryCallable<MatchIntentRequest, MatchIntentResponse> matchIntentCallable() {
+    return matchIntentCallable;
+  }
+
+  public UnaryCallable<FulfillIntentRequest, FulfillIntentResponse> fulfillIntentCallable() {
+    return fulfillIntentCallable;
+  }
+
+  @Override
+  public final void close() {
+    shutdown();
+  }
+
+  @Override
+  public void shutdown() {
+    backgroundResources.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return backgroundResources.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return backgroundResources.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    backgroundResources.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return backgroundResources.awaitTermination(duration, unit);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcTransitionRouteGroupsCallableFactory.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcTransitionRouteGroupsCallableFactory.java
new file mode 100644
index 000000000..c2368b6e1
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcTransitionRouteGroupsCallableFactory.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcCallableFactory;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.BatchingCallSettings;
+import com.google.api.gax.rpc.BidiStreamingCallable;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientStreamingCallable;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallable;
+import com.google.api.gax.rpc.StreamingCallSettings;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.longrunning.stub.OperationsStub;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * gRPC callable factory implementation for Dialogflow API.
+ *
+ * <p>This class is for advanced usage.
+ */
+@Generated("by gapic-generator")
+@BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+public class GrpcTransitionRouteGroupsCallableFactory implements GrpcStubCallableFactory {
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createUnaryCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      UnaryCallSettings<RequestT, ResponseT> callSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createUnaryCallable(grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT, PagedListResponseT>
+      UnaryCallable<RequestT, PagedListResponseT> createPagedCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          PagedCallSettings<RequestT, ResponseT, PagedListResponseT> pagedCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createPagedCallable(
+        grpcCallSettings, pagedCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createBatchingCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      BatchingCallSettings<RequestT, ResponseT> batchingCallSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createBatchingCallable(
+        grpcCallSettings, batchingCallSettings, clientContext);
+  }
+
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  @Override
+  public <RequestT, ResponseT, MetadataT>
+      OperationCallable<RequestT, ResponseT, MetadataT> createOperationCallable(
+          GrpcCallSettings<RequestT, com.google.longrunning.Operation> grpcCallSettings,
+          OperationCallSettings<RequestT, ResponseT, MetadataT> operationCallSettings,
+          ClientContext clientContext,
+          OperationsStub operationsStub) {
+    return GrpcCallableFactory.createOperationCallable(
+        grpcCallSettings, operationCallSettings, clientContext, operationsStub);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      BidiStreamingCallable<RequestT, ResponseT> createBidiStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createBidiStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ServerStreamingCallable<RequestT, ResponseT> createServerStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          ServerStreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createServerStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ClientStreamingCallable<RequestT, ResponseT> createClientStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createClientStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcTransitionRouteGroupsStub.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcTransitionRouteGroupsStub.java
new file mode 100644
index 000000000..25cf8b708
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcTransitionRouteGroupsStub.java
@@ -0,0 +1,338 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupsClient.ListTransitionRouteGroupsPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.core.BackgroundResourceAggregation;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.RequestParamsExtractor;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest;
+import com.google.common.collect.ImmutableMap;
+import com.google.protobuf.Empty;
+import io.grpc.MethodDescriptor;
+import io.grpc.protobuf.ProtoUtils;
+import java.io.IOException;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * gRPC stub implementation for Dialogflow API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator")
+@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+public class GrpcTransitionRouteGroupsStub extends TransitionRouteGroupsStub {
+
+  private static final MethodDescriptor<
+          ListTransitionRouteGroupsRequest, ListTransitionRouteGroupsResponse>
+      listTransitionRouteGroupsMethodDescriptor =
+          MethodDescriptor
+              .<ListTransitionRouteGroupsRequest, ListTransitionRouteGroupsResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(
+                  "google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups/ListTransitionRouteGroups")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(ListTransitionRouteGroupsRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(ListTransitionRouteGroupsResponse.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<GetTransitionRouteGroupRequest, TransitionRouteGroup>
+      getTransitionRouteGroupMethodDescriptor =
+          MethodDescriptor.<GetTransitionRouteGroupRequest, TransitionRouteGroup>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(
+                  "google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups/GetTransitionRouteGroup")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(GetTransitionRouteGroupRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(TransitionRouteGroup.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<CreateTransitionRouteGroupRequest, TransitionRouteGroup>
+      createTransitionRouteGroupMethodDescriptor =
+          MethodDescriptor.<CreateTransitionRouteGroupRequest, TransitionRouteGroup>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(
+                  "google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups/CreateTransitionRouteGroup")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(CreateTransitionRouteGroupRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(TransitionRouteGroup.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<UpdateTransitionRouteGroupRequest, TransitionRouteGroup>
+      updateTransitionRouteGroupMethodDescriptor =
+          MethodDescriptor.<UpdateTransitionRouteGroupRequest, TransitionRouteGroup>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(
+                  "google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups/UpdateTransitionRouteGroup")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(UpdateTransitionRouteGroupRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(TransitionRouteGroup.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<DeleteTransitionRouteGroupRequest, Empty>
+      deleteTransitionRouteGroupMethodDescriptor =
+          MethodDescriptor.<DeleteTransitionRouteGroupRequest, Empty>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(
+                  "google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups/DeleteTransitionRouteGroup")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(DeleteTransitionRouteGroupRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(Empty.getDefaultInstance()))
+              .build();
+
+  private final BackgroundResource backgroundResources;
+
+  private final UnaryCallable<ListTransitionRouteGroupsRequest, ListTransitionRouteGroupsResponse>
+      listTransitionRouteGroupsCallable;
+  private final UnaryCallable<
+          ListTransitionRouteGroupsRequest, ListTransitionRouteGroupsPagedResponse>
+      listTransitionRouteGroupsPagedCallable;
+  private final UnaryCallable<GetTransitionRouteGroupRequest, TransitionRouteGroup>
+      getTransitionRouteGroupCallable;
+  private final UnaryCallable<CreateTransitionRouteGroupRequest, TransitionRouteGroup>
+      createTransitionRouteGroupCallable;
+  private final UnaryCallable<UpdateTransitionRouteGroupRequest, TransitionRouteGroup>
+      updateTransitionRouteGroupCallable;
+  private final UnaryCallable<DeleteTransitionRouteGroupRequest, Empty>
+      deleteTransitionRouteGroupCallable;
+
+  private final GrpcStubCallableFactory callableFactory;
+
+  public static final GrpcTransitionRouteGroupsStub create(
+      TransitionRouteGroupsStubSettings settings) throws IOException {
+    return new GrpcTransitionRouteGroupsStub(settings, ClientContext.create(settings));
+  }
+
+  public static final GrpcTransitionRouteGroupsStub create(ClientContext clientContext)
+      throws IOException {
+    return new GrpcTransitionRouteGroupsStub(
+        TransitionRouteGroupsStubSettings.newBuilder().build(), clientContext);
+  }
+
+  public static final GrpcTransitionRouteGroupsStub create(
+      ClientContext clientContext, GrpcStubCallableFactory callableFactory) throws IOException {
+    return new GrpcTransitionRouteGroupsStub(
+        TransitionRouteGroupsStubSettings.newBuilder().build(), clientContext, callableFactory);
+  }
+
+  /**
+   * Constructs an instance of GrpcTransitionRouteGroupsStub, using the given settings. This is
+   * protected so that it is easy to make a subclass, but otherwise, the static factory methods
+   * should be preferred.
+   */
+  protected GrpcTransitionRouteGroupsStub(
+      TransitionRouteGroupsStubSettings settings, ClientContext clientContext) throws IOException {
+    this(settings, clientContext, new GrpcTransitionRouteGroupsCallableFactory());
+  }
+
+  /**
+   * Constructs an instance of GrpcTransitionRouteGroupsStub, using the given settings. This is
+   * protected so that it is easy to make a subclass, but otherwise, the static factory methods
+   * should be preferred.
+   */
+  protected GrpcTransitionRouteGroupsStub(
+      TransitionRouteGroupsStubSettings settings,
+      ClientContext clientContext,
+      GrpcStubCallableFactory callableFactory)
+      throws IOException {
+    this.callableFactory = callableFactory;
+
+    GrpcCallSettings<ListTransitionRouteGroupsRequest, ListTransitionRouteGroupsResponse>
+        listTransitionRouteGroupsTransportSettings =
+            GrpcCallSettings
+                .<ListTransitionRouteGroupsRequest, ListTransitionRouteGroupsResponse>newBuilder()
+                .setMethodDescriptor(listTransitionRouteGroupsMethodDescriptor)
+                .setParamsExtractor(
+                    new RequestParamsExtractor<ListTransitionRouteGroupsRequest>() {
+                      @Override
+                      public Map<String, String> extract(ListTransitionRouteGroupsRequest request) {
+                        ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                        params.put("parent", String.valueOf(request.getParent()));
+                        return params.build();
+                      }
+                    })
+                .build();
+    GrpcCallSettings<GetTransitionRouteGroupRequest, TransitionRouteGroup>
+        getTransitionRouteGroupTransportSettings =
+            GrpcCallSettings.<GetTransitionRouteGroupRequest, TransitionRouteGroup>newBuilder()
+                .setMethodDescriptor(getTransitionRouteGroupMethodDescriptor)
+                .setParamsExtractor(
+                    new RequestParamsExtractor<GetTransitionRouteGroupRequest>() {
+                      @Override
+                      public Map<String, String> extract(GetTransitionRouteGroupRequest request) {
+                        ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                        params.put("name", String.valueOf(request.getName()));
+                        return params.build();
+                      }
+                    })
+                .build();
+    GrpcCallSettings<CreateTransitionRouteGroupRequest, TransitionRouteGroup>
+        createTransitionRouteGroupTransportSettings =
+            GrpcCallSettings.<CreateTransitionRouteGroupRequest, TransitionRouteGroup>newBuilder()
+                .setMethodDescriptor(createTransitionRouteGroupMethodDescriptor)
+                .setParamsExtractor(
+                    new RequestParamsExtractor<CreateTransitionRouteGroupRequest>() {
+                      @Override
+                      public Map<String, String> extract(
+                          CreateTransitionRouteGroupRequest request) {
+                        ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                        params.put("parent", String.valueOf(request.getParent()));
+                        return params.build();
+                      }
+                    })
+                .build();
+    GrpcCallSettings<UpdateTransitionRouteGroupRequest, TransitionRouteGroup>
+        updateTransitionRouteGroupTransportSettings =
+            GrpcCallSettings.<UpdateTransitionRouteGroupRequest, TransitionRouteGroup>newBuilder()
+                .setMethodDescriptor(updateTransitionRouteGroupMethodDescriptor)
+                .setParamsExtractor(
+                    new RequestParamsExtractor<UpdateTransitionRouteGroupRequest>() {
+                      @Override
+                      public Map<String, String> extract(
+                          UpdateTransitionRouteGroupRequest request) {
+                        ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                        params.put(
+                            "transition_route_group.name",
+                            String.valueOf(request.getTransitionRouteGroup().getName()));
+                        return params.build();
+                      }
+                    })
+                .build();
+    GrpcCallSettings<DeleteTransitionRouteGroupRequest, Empty>
+        deleteTransitionRouteGroupTransportSettings =
+            GrpcCallSettings.<DeleteTransitionRouteGroupRequest, Empty>newBuilder()
+                .setMethodDescriptor(deleteTransitionRouteGroupMethodDescriptor)
+                .setParamsExtractor(
+                    new RequestParamsExtractor<DeleteTransitionRouteGroupRequest>() {
+                      @Override
+                      public Map<String, String> extract(
+                          DeleteTransitionRouteGroupRequest request) {
+                        ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                        params.put("name", String.valueOf(request.getName()));
+                        return params.build();
+                      }
+                    })
+                .build();
+
+    this.listTransitionRouteGroupsCallable =
+        callableFactory.createUnaryCallable(
+            listTransitionRouteGroupsTransportSettings,
+            settings.listTransitionRouteGroupsSettings(),
+            clientContext);
+    this.listTransitionRouteGroupsPagedCallable =
+        callableFactory.createPagedCallable(
+            listTransitionRouteGroupsTransportSettings,
+            settings.listTransitionRouteGroupsSettings(),
+            clientContext);
+    this.getTransitionRouteGroupCallable =
+        callableFactory.createUnaryCallable(
+            getTransitionRouteGroupTransportSettings,
+            settings.getTransitionRouteGroupSettings(),
+            clientContext);
+    this.createTransitionRouteGroupCallable =
+        callableFactory.createUnaryCallable(
+            createTransitionRouteGroupTransportSettings,
+            settings.createTransitionRouteGroupSettings(),
+            clientContext);
+    this.updateTransitionRouteGroupCallable =
+        callableFactory.createUnaryCallable(
+            updateTransitionRouteGroupTransportSettings,
+            settings.updateTransitionRouteGroupSettings(),
+            clientContext);
+    this.deleteTransitionRouteGroupCallable =
+        callableFactory.createUnaryCallable(
+            deleteTransitionRouteGroupTransportSettings,
+            settings.deleteTransitionRouteGroupSettings(),
+            clientContext);
+
+    backgroundResources = new BackgroundResourceAggregation(clientContext.getBackgroundResources());
+  }
+
+  public UnaryCallable<ListTransitionRouteGroupsRequest, ListTransitionRouteGroupsPagedResponse>
+      listTransitionRouteGroupsPagedCallable() {
+    return listTransitionRouteGroupsPagedCallable;
+  }
+
+  public UnaryCallable<ListTransitionRouteGroupsRequest, ListTransitionRouteGroupsResponse>
+      listTransitionRouteGroupsCallable() {
+    return listTransitionRouteGroupsCallable;
+  }
+
+  public UnaryCallable<GetTransitionRouteGroupRequest, TransitionRouteGroup>
+      getTransitionRouteGroupCallable() {
+    return getTransitionRouteGroupCallable;
+  }
+
+  public UnaryCallable<CreateTransitionRouteGroupRequest, TransitionRouteGroup>
+      createTransitionRouteGroupCallable() {
+    return createTransitionRouteGroupCallable;
+  }
+
+  public UnaryCallable<UpdateTransitionRouteGroupRequest, TransitionRouteGroup>
+      updateTransitionRouteGroupCallable() {
+    return updateTransitionRouteGroupCallable;
+  }
+
+  public UnaryCallable<DeleteTransitionRouteGroupRequest, Empty>
+      deleteTransitionRouteGroupCallable() {
+    return deleteTransitionRouteGroupCallable;
+  }
+
+  @Override
+  public final void close() {
+    shutdown();
+  }
+
+  @Override
+  public void shutdown() {
+    backgroundResources.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return backgroundResources.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return backgroundResources.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    backgroundResources.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return backgroundResources.awaitTermination(duration, unit);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcVersionsCallableFactory.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcVersionsCallableFactory.java
new file mode 100644
index 000000000..a91c079f5
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcVersionsCallableFactory.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcCallableFactory;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.BatchingCallSettings;
+import com.google.api.gax.rpc.BidiStreamingCallable;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientStreamingCallable;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallable;
+import com.google.api.gax.rpc.StreamingCallSettings;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.longrunning.stub.OperationsStub;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * gRPC callable factory implementation for Dialogflow API.
+ *
+ * <p>This class is for advanced usage.
+ */
+@Generated("by gapic-generator")
+@BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+public class GrpcVersionsCallableFactory implements GrpcStubCallableFactory {
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createUnaryCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      UnaryCallSettings<RequestT, ResponseT> callSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createUnaryCallable(grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT, PagedListResponseT>
+      UnaryCallable<RequestT, PagedListResponseT> createPagedCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          PagedCallSettings<RequestT, ResponseT, PagedListResponseT> pagedCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createPagedCallable(
+        grpcCallSettings, pagedCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createBatchingCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      BatchingCallSettings<RequestT, ResponseT> batchingCallSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createBatchingCallable(
+        grpcCallSettings, batchingCallSettings, clientContext);
+  }
+
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  @Override
+  public <RequestT, ResponseT, MetadataT>
+      OperationCallable<RequestT, ResponseT, MetadataT> createOperationCallable(
+          GrpcCallSettings<RequestT, com.google.longrunning.Operation> grpcCallSettings,
+          OperationCallSettings<RequestT, ResponseT, MetadataT> operationCallSettings,
+          ClientContext clientContext,
+          OperationsStub operationsStub) {
+    return GrpcCallableFactory.createOperationCallable(
+        grpcCallSettings, operationCallSettings, clientContext, operationsStub);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      BidiStreamingCallable<RequestT, ResponseT> createBidiStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createBidiStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ServerStreamingCallable<RequestT, ResponseT> createServerStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          ServerStreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createServerStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ClientStreamingCallable<RequestT, ResponseT> createClientStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createClientStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcVersionsStub.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcVersionsStub.java
new file mode 100644
index 000000000..c3d8e22f0
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcVersionsStub.java
@@ -0,0 +1,350 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.VersionsClient.ListVersionsPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.core.BackgroundResourceAggregation;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.RequestParamsExtractor;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.Version;
+import com.google.common.collect.ImmutableMap;
+import com.google.longrunning.Operation;
+import com.google.longrunning.stub.GrpcOperationsStub;
+import com.google.protobuf.Empty;
+import com.google.protobuf.Struct;
+import io.grpc.MethodDescriptor;
+import io.grpc.protobuf.ProtoUtils;
+import java.io.IOException;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * gRPC stub implementation for Dialogflow API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator")
+@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+public class GrpcVersionsStub extends VersionsStub {
+
+  private static final MethodDescriptor<ListVersionsRequest, ListVersionsResponse>
+      listVersionsMethodDescriptor =
+          MethodDescriptor.<ListVersionsRequest, ListVersionsResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Versions/ListVersions")
+              .setRequestMarshaller(ProtoUtils.marshaller(ListVersionsRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(ListVersionsResponse.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<GetVersionRequest, Version> getVersionMethodDescriptor =
+      MethodDescriptor.<GetVersionRequest, Version>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Versions/GetVersion")
+          .setRequestMarshaller(ProtoUtils.marshaller(GetVersionRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Version.getDefaultInstance()))
+          .build();
+  private static final MethodDescriptor<CreateVersionRequest, Operation>
+      createVersionMethodDescriptor =
+          MethodDescriptor.<CreateVersionRequest, Operation>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Versions/CreateVersion")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(CreateVersionRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(Operation.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<UpdateVersionRequest, Version>
+      updateVersionMethodDescriptor =
+          MethodDescriptor.<UpdateVersionRequest, Version>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Versions/UpdateVersion")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(UpdateVersionRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(Version.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<DeleteVersionRequest, Empty> deleteVersionMethodDescriptor =
+      MethodDescriptor.<DeleteVersionRequest, Empty>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Versions/DeleteVersion")
+          .setRequestMarshaller(ProtoUtils.marshaller(DeleteVersionRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Empty.getDefaultInstance()))
+          .build();
+  private static final MethodDescriptor<LoadVersionRequest, Operation> loadVersionMethodDescriptor =
+      MethodDescriptor.<LoadVersionRequest, Operation>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Versions/LoadVersion")
+          .setRequestMarshaller(ProtoUtils.marshaller(LoadVersionRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Operation.getDefaultInstance()))
+          .build();
+
+  private final BackgroundResource backgroundResources;
+  private final GrpcOperationsStub operationsStub;
+
+  private final UnaryCallable<ListVersionsRequest, ListVersionsResponse> listVersionsCallable;
+  private final UnaryCallable<ListVersionsRequest, ListVersionsPagedResponse>
+      listVersionsPagedCallable;
+  private final UnaryCallable<GetVersionRequest, Version> getVersionCallable;
+  private final UnaryCallable<CreateVersionRequest, Operation> createVersionCallable;
+  private final OperationCallable<CreateVersionRequest, Version, CreateVersionOperationMetadata>
+      createVersionOperationCallable;
+  private final UnaryCallable<UpdateVersionRequest, Version> updateVersionCallable;
+  private final UnaryCallable<DeleteVersionRequest, Empty> deleteVersionCallable;
+  private final UnaryCallable<LoadVersionRequest, Operation> loadVersionCallable;
+  private final OperationCallable<LoadVersionRequest, Empty, Struct> loadVersionOperationCallable;
+
+  private final GrpcStubCallableFactory callableFactory;
+
+  public static final GrpcVersionsStub create(VersionsStubSettings settings) throws IOException {
+    return new GrpcVersionsStub(settings, ClientContext.create(settings));
+  }
+
+  public static final GrpcVersionsStub create(ClientContext clientContext) throws IOException {
+    return new GrpcVersionsStub(VersionsStubSettings.newBuilder().build(), clientContext);
+  }
+
+  public static final GrpcVersionsStub create(
+      ClientContext clientContext, GrpcStubCallableFactory callableFactory) throws IOException {
+    return new GrpcVersionsStub(
+        VersionsStubSettings.newBuilder().build(), clientContext, callableFactory);
+  }
+
+  /**
+   * Constructs an instance of GrpcVersionsStub, using the given settings. This is protected so that
+   * it is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected GrpcVersionsStub(VersionsStubSettings settings, ClientContext clientContext)
+      throws IOException {
+    this(settings, clientContext, new GrpcVersionsCallableFactory());
+  }
+
+  /**
+   * Constructs an instance of GrpcVersionsStub, using the given settings. This is protected so that
+   * it is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected GrpcVersionsStub(
+      VersionsStubSettings settings,
+      ClientContext clientContext,
+      GrpcStubCallableFactory callableFactory)
+      throws IOException {
+    this.callableFactory = callableFactory;
+    this.operationsStub = GrpcOperationsStub.create(clientContext, callableFactory);
+
+    GrpcCallSettings<ListVersionsRequest, ListVersionsResponse> listVersionsTransportSettings =
+        GrpcCallSettings.<ListVersionsRequest, ListVersionsResponse>newBuilder()
+            .setMethodDescriptor(listVersionsMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<ListVersionsRequest>() {
+                  @Override
+                  public Map<String, String> extract(ListVersionsRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("parent", String.valueOf(request.getParent()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<GetVersionRequest, Version> getVersionTransportSettings =
+        GrpcCallSettings.<GetVersionRequest, Version>newBuilder()
+            .setMethodDescriptor(getVersionMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<GetVersionRequest>() {
+                  @Override
+                  public Map<String, String> extract(GetVersionRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<CreateVersionRequest, Operation> createVersionTransportSettings =
+        GrpcCallSettings.<CreateVersionRequest, Operation>newBuilder()
+            .setMethodDescriptor(createVersionMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<CreateVersionRequest>() {
+                  @Override
+                  public Map<String, String> extract(CreateVersionRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("parent", String.valueOf(request.getParent()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<UpdateVersionRequest, Version> updateVersionTransportSettings =
+        GrpcCallSettings.<UpdateVersionRequest, Version>newBuilder()
+            .setMethodDescriptor(updateVersionMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<UpdateVersionRequest>() {
+                  @Override
+                  public Map<String, String> extract(UpdateVersionRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("version.name", String.valueOf(request.getVersion().getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<DeleteVersionRequest, Empty> deleteVersionTransportSettings =
+        GrpcCallSettings.<DeleteVersionRequest, Empty>newBuilder()
+            .setMethodDescriptor(deleteVersionMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<DeleteVersionRequest>() {
+                  @Override
+                  public Map<String, String> extract(DeleteVersionRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<LoadVersionRequest, Operation> loadVersionTransportSettings =
+        GrpcCallSettings.<LoadVersionRequest, Operation>newBuilder()
+            .setMethodDescriptor(loadVersionMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<LoadVersionRequest>() {
+                  @Override
+                  public Map<String, String> extract(LoadVersionRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+
+    this.listVersionsCallable =
+        callableFactory.createUnaryCallable(
+            listVersionsTransportSettings, settings.listVersionsSettings(), clientContext);
+    this.listVersionsPagedCallable =
+        callableFactory.createPagedCallable(
+            listVersionsTransportSettings, settings.listVersionsSettings(), clientContext);
+    this.getVersionCallable =
+        callableFactory.createUnaryCallable(
+            getVersionTransportSettings, settings.getVersionSettings(), clientContext);
+    this.createVersionCallable =
+        callableFactory.createUnaryCallable(
+            createVersionTransportSettings, settings.createVersionSettings(), clientContext);
+    this.createVersionOperationCallable =
+        callableFactory.createOperationCallable(
+            createVersionTransportSettings,
+            settings.createVersionOperationSettings(),
+            clientContext,
+            this.operationsStub);
+    this.updateVersionCallable =
+        callableFactory.createUnaryCallable(
+            updateVersionTransportSettings, settings.updateVersionSettings(), clientContext);
+    this.deleteVersionCallable =
+        callableFactory.createUnaryCallable(
+            deleteVersionTransportSettings, settings.deleteVersionSettings(), clientContext);
+    this.loadVersionCallable =
+        callableFactory.createUnaryCallable(
+            loadVersionTransportSettings, settings.loadVersionSettings(), clientContext);
+    this.loadVersionOperationCallable =
+        callableFactory.createOperationCallable(
+            loadVersionTransportSettings,
+            settings.loadVersionOperationSettings(),
+            clientContext,
+            this.operationsStub);
+
+    backgroundResources = new BackgroundResourceAggregation(clientContext.getBackgroundResources());
+  }
+
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public GrpcOperationsStub getOperationsStub() {
+    return operationsStub;
+  }
+
+  public UnaryCallable<ListVersionsRequest, ListVersionsPagedResponse> listVersionsPagedCallable() {
+    return listVersionsPagedCallable;
+  }
+
+  public UnaryCallable<ListVersionsRequest, ListVersionsResponse> listVersionsCallable() {
+    return listVersionsCallable;
+  }
+
+  public UnaryCallable<GetVersionRequest, Version> getVersionCallable() {
+    return getVersionCallable;
+  }
+
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationCallable<CreateVersionRequest, Version, CreateVersionOperationMetadata>
+      createVersionOperationCallable() {
+    return createVersionOperationCallable;
+  }
+
+  public UnaryCallable<CreateVersionRequest, Operation> createVersionCallable() {
+    return createVersionCallable;
+  }
+
+  public UnaryCallable<UpdateVersionRequest, Version> updateVersionCallable() {
+    return updateVersionCallable;
+  }
+
+  public UnaryCallable<DeleteVersionRequest, Empty> deleteVersionCallable() {
+    return deleteVersionCallable;
+  }
+
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationCallable<LoadVersionRequest, Empty, Struct> loadVersionOperationCallable() {
+    return loadVersionOperationCallable;
+  }
+
+  public UnaryCallable<LoadVersionRequest, Operation> loadVersionCallable() {
+    return loadVersionCallable;
+  }
+
+  @Override
+  public final void close() {
+    shutdown();
+  }
+
+  @Override
+  public void shutdown() {
+    backgroundResources.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return backgroundResources.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return backgroundResources.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    backgroundResources.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return backgroundResources.awaitTermination(duration, unit);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcWebhooksCallableFactory.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcWebhooksCallableFactory.java
new file mode 100644
index 000000000..cc82f36f9
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcWebhooksCallableFactory.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcCallableFactory;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.BatchingCallSettings;
+import com.google.api.gax.rpc.BidiStreamingCallable;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientStreamingCallable;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallable;
+import com.google.api.gax.rpc.StreamingCallSettings;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.longrunning.stub.OperationsStub;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * gRPC callable factory implementation for Dialogflow API.
+ *
+ * <p>This class is for advanced usage.
+ */
+@Generated("by gapic-generator")
+@BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+public class GrpcWebhooksCallableFactory implements GrpcStubCallableFactory {
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createUnaryCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      UnaryCallSettings<RequestT, ResponseT> callSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createUnaryCallable(grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT, PagedListResponseT>
+      UnaryCallable<RequestT, PagedListResponseT> createPagedCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          PagedCallSettings<RequestT, ResponseT, PagedListResponseT> pagedCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createPagedCallable(
+        grpcCallSettings, pagedCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createBatchingCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      BatchingCallSettings<RequestT, ResponseT> batchingCallSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createBatchingCallable(
+        grpcCallSettings, batchingCallSettings, clientContext);
+  }
+
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  @Override
+  public <RequestT, ResponseT, MetadataT>
+      OperationCallable<RequestT, ResponseT, MetadataT> createOperationCallable(
+          GrpcCallSettings<RequestT, com.google.longrunning.Operation> grpcCallSettings,
+          OperationCallSettings<RequestT, ResponseT, MetadataT> operationCallSettings,
+          ClientContext clientContext,
+          OperationsStub operationsStub) {
+    return GrpcCallableFactory.createOperationCallable(
+        grpcCallSettings, operationCallSettings, clientContext, operationsStub);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      BidiStreamingCallable<RequestT, ResponseT> createBidiStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createBidiStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ServerStreamingCallable<RequestT, ResponseT> createServerStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          ServerStreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createServerStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ClientStreamingCallable<RequestT, ResponseT> createClientStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> streamingCallSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createClientStreamingCallable(
+        grpcCallSettings, streamingCallSettings, clientContext);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcWebhooksStub.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcWebhooksStub.java
new file mode 100644
index 000000000..b61fe2afd
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/GrpcWebhooksStub.java
@@ -0,0 +1,283 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.WebhooksClient.ListWebhooksPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.core.BackgroundResourceAggregation;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.RequestParamsExtractor;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.Webhook;
+import com.google.common.collect.ImmutableMap;
+import com.google.protobuf.Empty;
+import io.grpc.MethodDescriptor;
+import io.grpc.protobuf.ProtoUtils;
+import java.io.IOException;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * gRPC stub implementation for Dialogflow API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator")
+@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+public class GrpcWebhooksStub extends WebhooksStub {
+
+  private static final MethodDescriptor<ListWebhooksRequest, ListWebhooksResponse>
+      listWebhooksMethodDescriptor =
+          MethodDescriptor.<ListWebhooksRequest, ListWebhooksResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Webhooks/ListWebhooks")
+              .setRequestMarshaller(ProtoUtils.marshaller(ListWebhooksRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(ListWebhooksResponse.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<GetWebhookRequest, Webhook> getWebhookMethodDescriptor =
+      MethodDescriptor.<GetWebhookRequest, Webhook>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Webhooks/GetWebhook")
+          .setRequestMarshaller(ProtoUtils.marshaller(GetWebhookRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Webhook.getDefaultInstance()))
+          .build();
+  private static final MethodDescriptor<CreateWebhookRequest, Webhook>
+      createWebhookMethodDescriptor =
+          MethodDescriptor.<CreateWebhookRequest, Webhook>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Webhooks/CreateWebhook")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(CreateWebhookRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(Webhook.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<UpdateWebhookRequest, Webhook>
+      updateWebhookMethodDescriptor =
+          MethodDescriptor.<UpdateWebhookRequest, Webhook>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Webhooks/UpdateWebhook")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(UpdateWebhookRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(Webhook.getDefaultInstance()))
+              .build();
+  private static final MethodDescriptor<DeleteWebhookRequest, Empty> deleteWebhookMethodDescriptor =
+      MethodDescriptor.<DeleteWebhookRequest, Empty>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.cx.v3beta1.Webhooks/DeleteWebhook")
+          .setRequestMarshaller(ProtoUtils.marshaller(DeleteWebhookRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Empty.getDefaultInstance()))
+          .build();
+
+  private final BackgroundResource backgroundResources;
+
+  private final UnaryCallable<ListWebhooksRequest, ListWebhooksResponse> listWebhooksCallable;
+  private final UnaryCallable<ListWebhooksRequest, ListWebhooksPagedResponse>
+      listWebhooksPagedCallable;
+  private final UnaryCallable<GetWebhookRequest, Webhook> getWebhookCallable;
+  private final UnaryCallable<CreateWebhookRequest, Webhook> createWebhookCallable;
+  private final UnaryCallable<UpdateWebhookRequest, Webhook> updateWebhookCallable;
+  private final UnaryCallable<DeleteWebhookRequest, Empty> deleteWebhookCallable;
+
+  private final GrpcStubCallableFactory callableFactory;
+
+  public static final GrpcWebhooksStub create(WebhooksStubSettings settings) throws IOException {
+    return new GrpcWebhooksStub(settings, ClientContext.create(settings));
+  }
+
+  public static final GrpcWebhooksStub create(ClientContext clientContext) throws IOException {
+    return new GrpcWebhooksStub(WebhooksStubSettings.newBuilder().build(), clientContext);
+  }
+
+  public static final GrpcWebhooksStub create(
+      ClientContext clientContext, GrpcStubCallableFactory callableFactory) throws IOException {
+    return new GrpcWebhooksStub(
+        WebhooksStubSettings.newBuilder().build(), clientContext, callableFactory);
+  }
+
+  /**
+   * Constructs an instance of GrpcWebhooksStub, using the given settings. This is protected so that
+   * it is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected GrpcWebhooksStub(WebhooksStubSettings settings, ClientContext clientContext)
+      throws IOException {
+    this(settings, clientContext, new GrpcWebhooksCallableFactory());
+  }
+
+  /**
+   * Constructs an instance of GrpcWebhooksStub, using the given settings. This is protected so that
+   * it is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected GrpcWebhooksStub(
+      WebhooksStubSettings settings,
+      ClientContext clientContext,
+      GrpcStubCallableFactory callableFactory)
+      throws IOException {
+    this.callableFactory = callableFactory;
+
+    GrpcCallSettings<ListWebhooksRequest, ListWebhooksResponse> listWebhooksTransportSettings =
+        GrpcCallSettings.<ListWebhooksRequest, ListWebhooksResponse>newBuilder()
+            .setMethodDescriptor(listWebhooksMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<ListWebhooksRequest>() {
+                  @Override
+                  public Map<String, String> extract(ListWebhooksRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("parent", String.valueOf(request.getParent()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<GetWebhookRequest, Webhook> getWebhookTransportSettings =
+        GrpcCallSettings.<GetWebhookRequest, Webhook>newBuilder()
+            .setMethodDescriptor(getWebhookMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<GetWebhookRequest>() {
+                  @Override
+                  public Map<String, String> extract(GetWebhookRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<CreateWebhookRequest, Webhook> createWebhookTransportSettings =
+        GrpcCallSettings.<CreateWebhookRequest, Webhook>newBuilder()
+            .setMethodDescriptor(createWebhookMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<CreateWebhookRequest>() {
+                  @Override
+                  public Map<String, String> extract(CreateWebhookRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("parent", String.valueOf(request.getParent()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<UpdateWebhookRequest, Webhook> updateWebhookTransportSettings =
+        GrpcCallSettings.<UpdateWebhookRequest, Webhook>newBuilder()
+            .setMethodDescriptor(updateWebhookMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<UpdateWebhookRequest>() {
+                  @Override
+                  public Map<String, String> extract(UpdateWebhookRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("webhook.name", String.valueOf(request.getWebhook().getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings<DeleteWebhookRequest, Empty> deleteWebhookTransportSettings =
+        GrpcCallSettings.<DeleteWebhookRequest, Empty>newBuilder()
+            .setMethodDescriptor(deleteWebhookMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<DeleteWebhookRequest>() {
+                  @Override
+                  public Map<String, String> extract(DeleteWebhookRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+
+    this.listWebhooksCallable =
+        callableFactory.createUnaryCallable(
+            listWebhooksTransportSettings, settings.listWebhooksSettings(), clientContext);
+    this.listWebhooksPagedCallable =
+        callableFactory.createPagedCallable(
+            listWebhooksTransportSettings, settings.listWebhooksSettings(), clientContext);
+    this.getWebhookCallable =
+        callableFactory.createUnaryCallable(
+            getWebhookTransportSettings, settings.getWebhookSettings(), clientContext);
+    this.createWebhookCallable =
+        callableFactory.createUnaryCallable(
+            createWebhookTransportSettings, settings.createWebhookSettings(), clientContext);
+    this.updateWebhookCallable =
+        callableFactory.createUnaryCallable(
+            updateWebhookTransportSettings, settings.updateWebhookSettings(), clientContext);
+    this.deleteWebhookCallable =
+        callableFactory.createUnaryCallable(
+            deleteWebhookTransportSettings, settings.deleteWebhookSettings(), clientContext);
+
+    backgroundResources = new BackgroundResourceAggregation(clientContext.getBackgroundResources());
+  }
+
+  public UnaryCallable<ListWebhooksRequest, ListWebhooksPagedResponse> listWebhooksPagedCallable() {
+    return listWebhooksPagedCallable;
+  }
+
+  public UnaryCallable<ListWebhooksRequest, ListWebhooksResponse> listWebhooksCallable() {
+    return listWebhooksCallable;
+  }
+
+  public UnaryCallable<GetWebhookRequest, Webhook> getWebhookCallable() {
+    return getWebhookCallable;
+  }
+
+  public UnaryCallable<CreateWebhookRequest, Webhook> createWebhookCallable() {
+    return createWebhookCallable;
+  }
+
+  public UnaryCallable<UpdateWebhookRequest, Webhook> updateWebhookCallable() {
+    return updateWebhookCallable;
+  }
+
+  public UnaryCallable<DeleteWebhookRequest, Empty> deleteWebhookCallable() {
+    return deleteWebhookCallable;
+  }
+
+  @Override
+  public final void close() {
+    shutdown();
+  }
+
+  @Override
+  public void shutdown() {
+    backgroundResources.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return backgroundResources.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return backgroundResources.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    backgroundResources.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return backgroundResources.awaitTermination(duration, unit);
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/IntentsStub.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/IntentsStub.java
new file mode 100644
index 000000000..5c3af36e6
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/IntentsStub.java
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.IntentsClient.ListIntentsPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.Intent;
+import com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest;
+import com.google.protobuf.Empty;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Base stub class for Dialogflow API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator")
+@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+public abstract class IntentsStub implements BackgroundResource {
+
+  public UnaryCallable<ListIntentsRequest, ListIntentsPagedResponse> listIntentsPagedCallable() {
+    throw new UnsupportedOperationException("Not implemented: listIntentsPagedCallable()");
+  }
+
+  public UnaryCallable<ListIntentsRequest, ListIntentsResponse> listIntentsCallable() {
+    throw new UnsupportedOperationException("Not implemented: listIntentsCallable()");
+  }
+
+  public UnaryCallable<GetIntentRequest, Intent> getIntentCallable() {
+    throw new UnsupportedOperationException("Not implemented: getIntentCallable()");
+  }
+
+  public UnaryCallable<CreateIntentRequest, Intent> createIntentCallable() {
+    throw new UnsupportedOperationException("Not implemented: createIntentCallable()");
+  }
+
+  public UnaryCallable<UpdateIntentRequest, Intent> updateIntentCallable() {
+    throw new UnsupportedOperationException("Not implemented: updateIntentCallable()");
+  }
+
+  public UnaryCallable<DeleteIntentRequest, Empty> deleteIntentCallable() {
+    throw new UnsupportedOperationException("Not implemented: deleteIntentCallable()");
+  }
+
+  @Override
+  public abstract void close();
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/IntentsStubSettings.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/IntentsStubSettings.java
new file mode 100644
index 000000000..9627f555c
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/IntentsStubSettings.java
@@ -0,0 +1,464 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.IntentsClient.ListIntentsPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GaxProperties;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.GrpcTransportChannel;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.retrying.RetrySettings;
+import com.google.api.gax.rpc.ApiCallContext;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.PagedListDescriptor;
+import com.google.api.gax.rpc.PagedListResponseFactory;
+import com.google.api.gax.rpc.StatusCode;
+import com.google.api.gax.rpc.StubSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.Intent;
+import com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Lists;
+import com.google.protobuf.Empty;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+import org.threeten.bp.Duration;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Settings class to configure an instance of {@link IntentsStub}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getIntent to 30 seconds:
+ *
+ * <pre>
+ * <code>
+ * IntentsStubSettings.Builder intentsSettingsBuilder =
+ *     IntentsStubSettings.newBuilder();
+ * intentsSettingsBuilder
+ *     .getIntentSettings()
+ *     .setRetrySettings(
+ *         intentsSettingsBuilder.getIntentSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * IntentsStubSettings intentsSettings = intentsSettingsBuilder.build();
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class IntentsStubSettings extends StubSettings<IntentsStubSettings> {
+  /** The default scopes of the service. */
+  private static final ImmutableList<String> DEFAULT_SERVICE_SCOPES =
+      ImmutableList.<String>builder()
+          .add("https://www.googleapis.com/auth/cloud-platform")
+          .add("https://www.googleapis.com/auth/dialogflow")
+          .build();
+
+  private final PagedCallSettings<ListIntentsRequest, ListIntentsResponse, ListIntentsPagedResponse>
+      listIntentsSettings;
+  private final UnaryCallSettings<GetIntentRequest, Intent> getIntentSettings;
+  private final UnaryCallSettings<CreateIntentRequest, Intent> createIntentSettings;
+  private final UnaryCallSettings<UpdateIntentRequest, Intent> updateIntentSettings;
+  private final UnaryCallSettings<DeleteIntentRequest, Empty> deleteIntentSettings;
+
+  /** Returns the object with the settings used for calls to listIntents. */
+  public PagedCallSettings<ListIntentsRequest, ListIntentsResponse, ListIntentsPagedResponse>
+      listIntentsSettings() {
+    return listIntentsSettings;
+  }
+
+  /** Returns the object with the settings used for calls to getIntent. */
+  public UnaryCallSettings<GetIntentRequest, Intent> getIntentSettings() {
+    return getIntentSettings;
+  }
+
+  /** Returns the object with the settings used for calls to createIntent. */
+  public UnaryCallSettings<CreateIntentRequest, Intent> createIntentSettings() {
+    return createIntentSettings;
+  }
+
+  /** Returns the object with the settings used for calls to updateIntent. */
+  public UnaryCallSettings<UpdateIntentRequest, Intent> updateIntentSettings() {
+    return updateIntentSettings;
+  }
+
+  /** Returns the object with the settings used for calls to deleteIntent. */
+  public UnaryCallSettings<DeleteIntentRequest, Empty> deleteIntentSettings() {
+    return deleteIntentSettings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public IntentsStub createStub() throws IOException {
+    if (getTransportChannelProvider()
+        .getTransportName()
+        .equals(GrpcTransportChannel.getGrpcTransportName())) {
+      return GrpcIntentsStub.create(this);
+    } else {
+      throw new UnsupportedOperationException(
+          "Transport not supported: " + getTransportChannelProvider().getTransportName());
+    }
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return InstantiatingExecutorProvider.newBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return "dialogflow.googleapis.com:443";
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return DEFAULT_SERVICE_SCOPES;
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return GoogleCredentialsProvider.newBuilder().setScopesToApply(DEFAULT_SERVICE_SCOPES);
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return InstantiatingGrpcChannelProvider.newBuilder()
+        .setMaxInboundMessageSize(Integer.MAX_VALUE);
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return defaultGrpcTransportProviderBuilder().build();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return ApiClientHeaderProvider.newBuilder()
+        .setGeneratedLibToken("gapic", GaxProperties.getLibraryVersion(IntentsStubSettings.class))
+        .setTransportToken(
+            GaxGrpcProperties.getGrpcTokenName(), GaxGrpcProperties.getGrpcVersion());
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected IntentsStubSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+
+    listIntentsSettings = settingsBuilder.listIntentsSettings().build();
+    getIntentSettings = settingsBuilder.getIntentSettings().build();
+    createIntentSettings = settingsBuilder.createIntentSettings().build();
+    updateIntentSettings = settingsBuilder.updateIntentSettings().build();
+    deleteIntentSettings = settingsBuilder.deleteIntentSettings().build();
+  }
+
+  private static final PagedListDescriptor<ListIntentsRequest, ListIntentsResponse, Intent>
+      LIST_INTENTS_PAGE_STR_DESC =
+          new PagedListDescriptor<ListIntentsRequest, ListIntentsResponse, Intent>() {
+            @Override
+            public String emptyToken() {
+              return "";
+            }
+
+            @Override
+            public ListIntentsRequest injectToken(ListIntentsRequest payload, String token) {
+              return ListIntentsRequest.newBuilder(payload).setPageToken(token).build();
+            }
+
+            @Override
+            public ListIntentsRequest injectPageSize(ListIntentsRequest payload, int pageSize) {
+              return ListIntentsRequest.newBuilder(payload).setPageSize(pageSize).build();
+            }
+
+            @Override
+            public Integer extractPageSize(ListIntentsRequest payload) {
+              return payload.getPageSize();
+            }
+
+            @Override
+            public String extractNextToken(ListIntentsResponse payload) {
+              return payload.getNextPageToken();
+            }
+
+            @Override
+            public Iterable<Intent> extractResources(ListIntentsResponse payload) {
+              return payload.getIntentsList() != null
+                  ? payload.getIntentsList()
+                  : ImmutableList.<Intent>of();
+            }
+          };
+
+  private static final PagedListResponseFactory<
+          ListIntentsRequest, ListIntentsResponse, ListIntentsPagedResponse>
+      LIST_INTENTS_PAGE_STR_FACT =
+          new PagedListResponseFactory<
+              ListIntentsRequest, ListIntentsResponse, ListIntentsPagedResponse>() {
+            @Override
+            public ApiFuture<ListIntentsPagedResponse> getFuturePagedResponse(
+                UnaryCallable<ListIntentsRequest, ListIntentsResponse> callable,
+                ListIntentsRequest request,
+                ApiCallContext context,
+                ApiFuture<ListIntentsResponse> futureResponse) {
+              PageContext<ListIntentsRequest, ListIntentsResponse, Intent> pageContext =
+                  PageContext.create(callable, LIST_INTENTS_PAGE_STR_DESC, request, context);
+              return ListIntentsPagedResponse.createAsync(pageContext, futureResponse);
+            }
+          };
+
+  /** Builder for IntentsStubSettings. */
+  public static class Builder extends StubSettings.Builder<IntentsStubSettings, Builder> {
+    private final ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders;
+
+    private final PagedCallSettings.Builder<
+            ListIntentsRequest, ListIntentsResponse, ListIntentsPagedResponse>
+        listIntentsSettings;
+    private final UnaryCallSettings.Builder<GetIntentRequest, Intent> getIntentSettings;
+    private final UnaryCallSettings.Builder<CreateIntentRequest, Intent> createIntentSettings;
+    private final UnaryCallSettings.Builder<UpdateIntentRequest, Intent> updateIntentSettings;
+    private final UnaryCallSettings.Builder<DeleteIntentRequest, Empty> deleteIntentSettings;
+
+    private static final ImmutableMap<String, ImmutableSet<StatusCode.Code>>
+        RETRYABLE_CODE_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, ImmutableSet<StatusCode.Code>> definitions =
+          ImmutableMap.builder();
+      definitions.put(
+          "retry_policy_1_codes",
+          ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList(StatusCode.Code.UNAVAILABLE)));
+      definitions.put("no_retry_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      definitions.put(
+          "retry_policy_2_codes",
+          ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList(StatusCode.Code.UNAVAILABLE)));
+      definitions.put(
+          "no_retry_1_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      RETRYABLE_CODE_DEFINITIONS = definitions.build();
+    }
+
+    private static final ImmutableMap<String, RetrySettings> RETRY_PARAM_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, RetrySettings> definitions = ImmutableMap.builder();
+      RetrySettings settings = null;
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(60000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(60000L))
+              .setTotalTimeout(Duration.ofMillis(60000L))
+              .build();
+      definitions.put("retry_policy_1_params", settings);
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(220000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(220000L))
+              .setTotalTimeout(Duration.ofMillis(220000L))
+              .build();
+      definitions.put("retry_policy_2_params", settings);
+      settings = RetrySettings.newBuilder().setRpcTimeoutMultiplier(1.0).build();
+      definitions.put("no_retry_params", settings);
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRpcTimeout(Duration.ofMillis(220000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(220000L))
+              .setTotalTimeout(Duration.ofMillis(220000L))
+              .build();
+      definitions.put("no_retry_1_params", settings);
+      RETRY_PARAM_DEFINITIONS = definitions.build();
+    }
+
+    protected Builder() {
+      this((ClientContext) null);
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(clientContext);
+
+      listIntentsSettings = PagedCallSettings.newBuilder(LIST_INTENTS_PAGE_STR_FACT);
+
+      getIntentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      createIntentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      updateIntentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      deleteIntentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              listIntentsSettings,
+              getIntentSettings,
+              createIntentSettings,
+              updateIntentSettings,
+              deleteIntentSettings);
+
+      initDefaults(this);
+    }
+
+    private static Builder createDefault() {
+      Builder builder = new Builder((ClientContext) null);
+      builder.setTransportChannelProvider(defaultTransportChannelProvider());
+      builder.setCredentialsProvider(defaultCredentialsProviderBuilder().build());
+      builder.setInternalHeaderProvider(defaultApiClientHeaderProviderBuilder().build());
+      builder.setEndpoint(getDefaultEndpoint());
+      return initDefaults(builder);
+    }
+
+    private static Builder initDefaults(Builder builder) {
+
+      builder
+          .listIntentsSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .getIntentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .createIntentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .updateIntentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .deleteIntentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      return builder;
+    }
+
+    protected Builder(IntentsStubSettings settings) {
+      super(settings);
+
+      listIntentsSettings = settings.listIntentsSettings.toBuilder();
+      getIntentSettings = settings.getIntentSettings.toBuilder();
+      createIntentSettings = settings.createIntentSettings.toBuilder();
+      updateIntentSettings = settings.updateIntentSettings.toBuilder();
+      deleteIntentSettings = settings.deleteIntentSettings.toBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              listIntentsSettings,
+              getIntentSettings,
+              createIntentSettings,
+              updateIntentSettings,
+              deleteIntentSettings);
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(unaryMethodSettingsBuilders, settingsUpdater);
+      return this;
+    }
+
+    public ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders() {
+      return unaryMethodSettingsBuilders;
+    }
+
+    /** Returns the builder for the settings used for calls to listIntents. */
+    public PagedCallSettings.Builder<
+            ListIntentsRequest, ListIntentsResponse, ListIntentsPagedResponse>
+        listIntentsSettings() {
+      return listIntentsSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to getIntent. */
+    public UnaryCallSettings.Builder<GetIntentRequest, Intent> getIntentSettings() {
+      return getIntentSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to createIntent. */
+    public UnaryCallSettings.Builder<CreateIntentRequest, Intent> createIntentSettings() {
+      return createIntentSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to updateIntent. */
+    public UnaryCallSettings.Builder<UpdateIntentRequest, Intent> updateIntentSettings() {
+      return updateIntentSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to deleteIntent. */
+    public UnaryCallSettings.Builder<DeleteIntentRequest, Empty> deleteIntentSettings() {
+      return deleteIntentSettings;
+    }
+
+    @Override
+    public IntentsStubSettings build() throws IOException {
+      return new IntentsStubSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/PagesStub.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/PagesStub.java
new file mode 100644
index 000000000..205752417
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/PagesStub.java
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.PagesClient.ListPagesPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.Page;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest;
+import com.google.protobuf.Empty;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Base stub class for Dialogflow API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator")
+@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+public abstract class PagesStub implements BackgroundResource {
+
+  public UnaryCallable<ListPagesRequest, ListPagesPagedResponse> listPagesPagedCallable() {
+    throw new UnsupportedOperationException("Not implemented: listPagesPagedCallable()");
+  }
+
+  public UnaryCallable<ListPagesRequest, ListPagesResponse> listPagesCallable() {
+    throw new UnsupportedOperationException("Not implemented: listPagesCallable()");
+  }
+
+  public UnaryCallable<GetPageRequest, Page> getPageCallable() {
+    throw new UnsupportedOperationException("Not implemented: getPageCallable()");
+  }
+
+  public UnaryCallable<CreatePageRequest, Page> createPageCallable() {
+    throw new UnsupportedOperationException("Not implemented: createPageCallable()");
+  }
+
+  public UnaryCallable<UpdatePageRequest, Page> updatePageCallable() {
+    throw new UnsupportedOperationException("Not implemented: updatePageCallable()");
+  }
+
+  public UnaryCallable<DeletePageRequest, Empty> deletePageCallable() {
+    throw new UnsupportedOperationException("Not implemented: deletePageCallable()");
+  }
+
+  @Override
+  public abstract void close();
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/PagesStubSettings.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/PagesStubSettings.java
new file mode 100644
index 000000000..4041228e7
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/PagesStubSettings.java
@@ -0,0 +1,463 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.PagesClient.ListPagesPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GaxProperties;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.GrpcTransportChannel;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.retrying.RetrySettings;
+import com.google.api.gax.rpc.ApiCallContext;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.PagedListDescriptor;
+import com.google.api.gax.rpc.PagedListResponseFactory;
+import com.google.api.gax.rpc.StatusCode;
+import com.google.api.gax.rpc.StubSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.Page;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Lists;
+import com.google.protobuf.Empty;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+import org.threeten.bp.Duration;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Settings class to configure an instance of {@link PagesStub}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getPage to 30 seconds:
+ *
+ * <pre>
+ * <code>
+ * PagesStubSettings.Builder pagesSettingsBuilder =
+ *     PagesStubSettings.newBuilder();
+ * pagesSettingsBuilder
+ *     .getPageSettings()
+ *     .setRetrySettings(
+ *         pagesSettingsBuilder.getPageSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * PagesStubSettings pagesSettings = pagesSettingsBuilder.build();
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class PagesStubSettings extends StubSettings<PagesStubSettings> {
+  /** The default scopes of the service. */
+  private static final ImmutableList<String> DEFAULT_SERVICE_SCOPES =
+      ImmutableList.<String>builder()
+          .add("https://www.googleapis.com/auth/cloud-platform")
+          .add("https://www.googleapis.com/auth/dialogflow")
+          .build();
+
+  private final PagedCallSettings<ListPagesRequest, ListPagesResponse, ListPagesPagedResponse>
+      listPagesSettings;
+  private final UnaryCallSettings<GetPageRequest, Page> getPageSettings;
+  private final UnaryCallSettings<CreatePageRequest, Page> createPageSettings;
+  private final UnaryCallSettings<UpdatePageRequest, Page> updatePageSettings;
+  private final UnaryCallSettings<DeletePageRequest, Empty> deletePageSettings;
+
+  /** Returns the object with the settings used for calls to listPages. */
+  public PagedCallSettings<ListPagesRequest, ListPagesResponse, ListPagesPagedResponse>
+      listPagesSettings() {
+    return listPagesSettings;
+  }
+
+  /** Returns the object with the settings used for calls to getPage. */
+  public UnaryCallSettings<GetPageRequest, Page> getPageSettings() {
+    return getPageSettings;
+  }
+
+  /** Returns the object with the settings used for calls to createPage. */
+  public UnaryCallSettings<CreatePageRequest, Page> createPageSettings() {
+    return createPageSettings;
+  }
+
+  /** Returns the object with the settings used for calls to updatePage. */
+  public UnaryCallSettings<UpdatePageRequest, Page> updatePageSettings() {
+    return updatePageSettings;
+  }
+
+  /** Returns the object with the settings used for calls to deletePage. */
+  public UnaryCallSettings<DeletePageRequest, Empty> deletePageSettings() {
+    return deletePageSettings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public PagesStub createStub() throws IOException {
+    if (getTransportChannelProvider()
+        .getTransportName()
+        .equals(GrpcTransportChannel.getGrpcTransportName())) {
+      return GrpcPagesStub.create(this);
+    } else {
+      throw new UnsupportedOperationException(
+          "Transport not supported: " + getTransportChannelProvider().getTransportName());
+    }
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return InstantiatingExecutorProvider.newBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return "dialogflow.googleapis.com:443";
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return DEFAULT_SERVICE_SCOPES;
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return GoogleCredentialsProvider.newBuilder().setScopesToApply(DEFAULT_SERVICE_SCOPES);
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return InstantiatingGrpcChannelProvider.newBuilder()
+        .setMaxInboundMessageSize(Integer.MAX_VALUE);
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return defaultGrpcTransportProviderBuilder().build();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return ApiClientHeaderProvider.newBuilder()
+        .setGeneratedLibToken("gapic", GaxProperties.getLibraryVersion(PagesStubSettings.class))
+        .setTransportToken(
+            GaxGrpcProperties.getGrpcTokenName(), GaxGrpcProperties.getGrpcVersion());
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected PagesStubSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+
+    listPagesSettings = settingsBuilder.listPagesSettings().build();
+    getPageSettings = settingsBuilder.getPageSettings().build();
+    createPageSettings = settingsBuilder.createPageSettings().build();
+    updatePageSettings = settingsBuilder.updatePageSettings().build();
+    deletePageSettings = settingsBuilder.deletePageSettings().build();
+  }
+
+  private static final PagedListDescriptor<ListPagesRequest, ListPagesResponse, Page>
+      LIST_PAGES_PAGE_STR_DESC =
+          new PagedListDescriptor<ListPagesRequest, ListPagesResponse, Page>() {
+            @Override
+            public String emptyToken() {
+              return "";
+            }
+
+            @Override
+            public ListPagesRequest injectToken(ListPagesRequest payload, String token) {
+              return ListPagesRequest.newBuilder(payload).setPageToken(token).build();
+            }
+
+            @Override
+            public ListPagesRequest injectPageSize(ListPagesRequest payload, int pageSize) {
+              return ListPagesRequest.newBuilder(payload).setPageSize(pageSize).build();
+            }
+
+            @Override
+            public Integer extractPageSize(ListPagesRequest payload) {
+              return payload.getPageSize();
+            }
+
+            @Override
+            public String extractNextToken(ListPagesResponse payload) {
+              return payload.getNextPageToken();
+            }
+
+            @Override
+            public Iterable<Page> extractResources(ListPagesResponse payload) {
+              return payload.getPagesList() != null
+                  ? payload.getPagesList()
+                  : ImmutableList.<Page>of();
+            }
+          };
+
+  private static final PagedListResponseFactory<
+          ListPagesRequest, ListPagesResponse, ListPagesPagedResponse>
+      LIST_PAGES_PAGE_STR_FACT =
+          new PagedListResponseFactory<
+              ListPagesRequest, ListPagesResponse, ListPagesPagedResponse>() {
+            @Override
+            public ApiFuture<ListPagesPagedResponse> getFuturePagedResponse(
+                UnaryCallable<ListPagesRequest, ListPagesResponse> callable,
+                ListPagesRequest request,
+                ApiCallContext context,
+                ApiFuture<ListPagesResponse> futureResponse) {
+              PageContext<ListPagesRequest, ListPagesResponse, Page> pageContext =
+                  PageContext.create(callable, LIST_PAGES_PAGE_STR_DESC, request, context);
+              return ListPagesPagedResponse.createAsync(pageContext, futureResponse);
+            }
+          };
+
+  /** Builder for PagesStubSettings. */
+  public static class Builder extends StubSettings.Builder<PagesStubSettings, Builder> {
+    private final ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders;
+
+    private final PagedCallSettings.Builder<
+            ListPagesRequest, ListPagesResponse, ListPagesPagedResponse>
+        listPagesSettings;
+    private final UnaryCallSettings.Builder<GetPageRequest, Page> getPageSettings;
+    private final UnaryCallSettings.Builder<CreatePageRequest, Page> createPageSettings;
+    private final UnaryCallSettings.Builder<UpdatePageRequest, Page> updatePageSettings;
+    private final UnaryCallSettings.Builder<DeletePageRequest, Empty> deletePageSettings;
+
+    private static final ImmutableMap<String, ImmutableSet<StatusCode.Code>>
+        RETRYABLE_CODE_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, ImmutableSet<StatusCode.Code>> definitions =
+          ImmutableMap.builder();
+      definitions.put(
+          "retry_policy_1_codes",
+          ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList(StatusCode.Code.UNAVAILABLE)));
+      definitions.put("no_retry_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      definitions.put(
+          "retry_policy_2_codes",
+          ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList(StatusCode.Code.UNAVAILABLE)));
+      definitions.put(
+          "no_retry_1_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      RETRYABLE_CODE_DEFINITIONS = definitions.build();
+    }
+
+    private static final ImmutableMap<String, RetrySettings> RETRY_PARAM_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, RetrySettings> definitions = ImmutableMap.builder();
+      RetrySettings settings = null;
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(60000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(60000L))
+              .setTotalTimeout(Duration.ofMillis(60000L))
+              .build();
+      definitions.put("retry_policy_1_params", settings);
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(220000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(220000L))
+              .setTotalTimeout(Duration.ofMillis(220000L))
+              .build();
+      definitions.put("retry_policy_2_params", settings);
+      settings = RetrySettings.newBuilder().setRpcTimeoutMultiplier(1.0).build();
+      definitions.put("no_retry_params", settings);
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRpcTimeout(Duration.ofMillis(220000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(220000L))
+              .setTotalTimeout(Duration.ofMillis(220000L))
+              .build();
+      definitions.put("no_retry_1_params", settings);
+      RETRY_PARAM_DEFINITIONS = definitions.build();
+    }
+
+    protected Builder() {
+      this((ClientContext) null);
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(clientContext);
+
+      listPagesSettings = PagedCallSettings.newBuilder(LIST_PAGES_PAGE_STR_FACT);
+
+      getPageSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      createPageSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      updatePageSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      deletePageSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              listPagesSettings,
+              getPageSettings,
+              createPageSettings,
+              updatePageSettings,
+              deletePageSettings);
+
+      initDefaults(this);
+    }
+
+    private static Builder createDefault() {
+      Builder builder = new Builder((ClientContext) null);
+      builder.setTransportChannelProvider(defaultTransportChannelProvider());
+      builder.setCredentialsProvider(defaultCredentialsProviderBuilder().build());
+      builder.setInternalHeaderProvider(defaultApiClientHeaderProviderBuilder().build());
+      builder.setEndpoint(getDefaultEndpoint());
+      return initDefaults(builder);
+    }
+
+    private static Builder initDefaults(Builder builder) {
+
+      builder
+          .listPagesSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .getPageSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .createPageSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .updatePageSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .deletePageSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      return builder;
+    }
+
+    protected Builder(PagesStubSettings settings) {
+      super(settings);
+
+      listPagesSettings = settings.listPagesSettings.toBuilder();
+      getPageSettings = settings.getPageSettings.toBuilder();
+      createPageSettings = settings.createPageSettings.toBuilder();
+      updatePageSettings = settings.updatePageSettings.toBuilder();
+      deletePageSettings = settings.deletePageSettings.toBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              listPagesSettings,
+              getPageSettings,
+              createPageSettings,
+              updatePageSettings,
+              deletePageSettings);
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(unaryMethodSettingsBuilders, settingsUpdater);
+      return this;
+    }
+
+    public ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders() {
+      return unaryMethodSettingsBuilders;
+    }
+
+    /** Returns the builder for the settings used for calls to listPages. */
+    public PagedCallSettings.Builder<ListPagesRequest, ListPagesResponse, ListPagesPagedResponse>
+        listPagesSettings() {
+      return listPagesSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to getPage. */
+    public UnaryCallSettings.Builder<GetPageRequest, Page> getPageSettings() {
+      return getPageSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to createPage. */
+    public UnaryCallSettings.Builder<CreatePageRequest, Page> createPageSettings() {
+      return createPageSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to updatePage. */
+    public UnaryCallSettings.Builder<UpdatePageRequest, Page> updatePageSettings() {
+      return updatePageSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to deletePage. */
+    public UnaryCallSettings.Builder<DeletePageRequest, Empty> deletePageSettings() {
+      return deletePageSettings;
+    }
+
+    @Override
+    public PagesStubSettings build() throws IOException {
+      return new PagesStubSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/SessionEntityTypesStub.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/SessionEntityTypesStub.java
new file mode 100644
index 000000000..768ad88bb
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/SessionEntityTypesStub.java
@@ -0,0 +1,75 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypesClient.ListSessionEntityTypesPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest;
+import com.google.protobuf.Empty;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Base stub class for Dialogflow API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator")
+@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+public abstract class SessionEntityTypesStub implements BackgroundResource {
+
+  public UnaryCallable<ListSessionEntityTypesRequest, ListSessionEntityTypesPagedResponse>
+      listSessionEntityTypesPagedCallable() {
+    throw new UnsupportedOperationException(
+        "Not implemented: listSessionEntityTypesPagedCallable()");
+  }
+
+  public UnaryCallable<ListSessionEntityTypesRequest, ListSessionEntityTypesResponse>
+      listSessionEntityTypesCallable() {
+    throw new UnsupportedOperationException("Not implemented: listSessionEntityTypesCallable()");
+  }
+
+  public UnaryCallable<GetSessionEntityTypeRequest, SessionEntityType>
+      getSessionEntityTypeCallable() {
+    throw new UnsupportedOperationException("Not implemented: getSessionEntityTypeCallable()");
+  }
+
+  public UnaryCallable<CreateSessionEntityTypeRequest, SessionEntityType>
+      createSessionEntityTypeCallable() {
+    throw new UnsupportedOperationException("Not implemented: createSessionEntityTypeCallable()");
+  }
+
+  public UnaryCallable<UpdateSessionEntityTypeRequest, SessionEntityType>
+      updateSessionEntityTypeCallable() {
+    throw new UnsupportedOperationException("Not implemented: updateSessionEntityTypeCallable()");
+  }
+
+  public UnaryCallable<DeleteSessionEntityTypeRequest, Empty> deleteSessionEntityTypeCallable() {
+    throw new UnsupportedOperationException("Not implemented: deleteSessionEntityTypeCallable()");
+  }
+
+  @Override
+  public abstract void close();
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/SessionEntityTypesStubSettings.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/SessionEntityTypesStubSettings.java
new file mode 100644
index 000000000..65d27cf0e
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/SessionEntityTypesStubSettings.java
@@ -0,0 +1,510 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypesClient.ListSessionEntityTypesPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GaxProperties;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.GrpcTransportChannel;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.retrying.RetrySettings;
+import com.google.api.gax.rpc.ApiCallContext;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.PagedListDescriptor;
+import com.google.api.gax.rpc.PagedListResponseFactory;
+import com.google.api.gax.rpc.StatusCode;
+import com.google.api.gax.rpc.StubSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Lists;
+import com.google.protobuf.Empty;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+import org.threeten.bp.Duration;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Settings class to configure an instance of {@link SessionEntityTypesStub}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getSessionEntityType to 30 seconds:
+ *
+ * <pre>
+ * <code>
+ * SessionEntityTypesStubSettings.Builder sessionEntityTypesSettingsBuilder =
+ *     SessionEntityTypesStubSettings.newBuilder();
+ * sessionEntityTypesSettingsBuilder
+ *     .getSessionEntityTypeSettings()
+ *     .setRetrySettings(
+ *         sessionEntityTypesSettingsBuilder.getSessionEntityTypeSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * SessionEntityTypesStubSettings sessionEntityTypesSettings = sessionEntityTypesSettingsBuilder.build();
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class SessionEntityTypesStubSettings extends StubSettings<SessionEntityTypesStubSettings> {
+  /** The default scopes of the service. */
+  private static final ImmutableList<String> DEFAULT_SERVICE_SCOPES =
+      ImmutableList.<String>builder()
+          .add("https://www.googleapis.com/auth/cloud-platform")
+          .add("https://www.googleapis.com/auth/dialogflow")
+          .build();
+
+  private final PagedCallSettings<
+          ListSessionEntityTypesRequest,
+          ListSessionEntityTypesResponse,
+          ListSessionEntityTypesPagedResponse>
+      listSessionEntityTypesSettings;
+  private final UnaryCallSettings<GetSessionEntityTypeRequest, SessionEntityType>
+      getSessionEntityTypeSettings;
+  private final UnaryCallSettings<CreateSessionEntityTypeRequest, SessionEntityType>
+      createSessionEntityTypeSettings;
+  private final UnaryCallSettings<UpdateSessionEntityTypeRequest, SessionEntityType>
+      updateSessionEntityTypeSettings;
+  private final UnaryCallSettings<DeleteSessionEntityTypeRequest, Empty>
+      deleteSessionEntityTypeSettings;
+
+  /** Returns the object with the settings used for calls to listSessionEntityTypes. */
+  public PagedCallSettings<
+          ListSessionEntityTypesRequest,
+          ListSessionEntityTypesResponse,
+          ListSessionEntityTypesPagedResponse>
+      listSessionEntityTypesSettings() {
+    return listSessionEntityTypesSettings;
+  }
+
+  /** Returns the object with the settings used for calls to getSessionEntityType. */
+  public UnaryCallSettings<GetSessionEntityTypeRequest, SessionEntityType>
+      getSessionEntityTypeSettings() {
+    return getSessionEntityTypeSettings;
+  }
+
+  /** Returns the object with the settings used for calls to createSessionEntityType. */
+  public UnaryCallSettings<CreateSessionEntityTypeRequest, SessionEntityType>
+      createSessionEntityTypeSettings() {
+    return createSessionEntityTypeSettings;
+  }
+
+  /** Returns the object with the settings used for calls to updateSessionEntityType. */
+  public UnaryCallSettings<UpdateSessionEntityTypeRequest, SessionEntityType>
+      updateSessionEntityTypeSettings() {
+    return updateSessionEntityTypeSettings;
+  }
+
+  /** Returns the object with the settings used for calls to deleteSessionEntityType. */
+  public UnaryCallSettings<DeleteSessionEntityTypeRequest, Empty>
+      deleteSessionEntityTypeSettings() {
+    return deleteSessionEntityTypeSettings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public SessionEntityTypesStub createStub() throws IOException {
+    if (getTransportChannelProvider()
+        .getTransportName()
+        .equals(GrpcTransportChannel.getGrpcTransportName())) {
+      return GrpcSessionEntityTypesStub.create(this);
+    } else {
+      throw new UnsupportedOperationException(
+          "Transport not supported: " + getTransportChannelProvider().getTransportName());
+    }
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return InstantiatingExecutorProvider.newBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return "dialogflow.googleapis.com:443";
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return DEFAULT_SERVICE_SCOPES;
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return GoogleCredentialsProvider.newBuilder().setScopesToApply(DEFAULT_SERVICE_SCOPES);
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return InstantiatingGrpcChannelProvider.newBuilder()
+        .setMaxInboundMessageSize(Integer.MAX_VALUE);
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return defaultGrpcTransportProviderBuilder().build();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return ApiClientHeaderProvider.newBuilder()
+        .setGeneratedLibToken(
+            "gapic", GaxProperties.getLibraryVersion(SessionEntityTypesStubSettings.class))
+        .setTransportToken(
+            GaxGrpcProperties.getGrpcTokenName(), GaxGrpcProperties.getGrpcVersion());
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected SessionEntityTypesStubSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+
+    listSessionEntityTypesSettings = settingsBuilder.listSessionEntityTypesSettings().build();
+    getSessionEntityTypeSettings = settingsBuilder.getSessionEntityTypeSettings().build();
+    createSessionEntityTypeSettings = settingsBuilder.createSessionEntityTypeSettings().build();
+    updateSessionEntityTypeSettings = settingsBuilder.updateSessionEntityTypeSettings().build();
+    deleteSessionEntityTypeSettings = settingsBuilder.deleteSessionEntityTypeSettings().build();
+  }
+
+  private static final PagedListDescriptor<
+          ListSessionEntityTypesRequest, ListSessionEntityTypesResponse, SessionEntityType>
+      LIST_SESSION_ENTITY_TYPES_PAGE_STR_DESC =
+          new PagedListDescriptor<
+              ListSessionEntityTypesRequest, ListSessionEntityTypesResponse, SessionEntityType>() {
+            @Override
+            public String emptyToken() {
+              return "";
+            }
+
+            @Override
+            public ListSessionEntityTypesRequest injectToken(
+                ListSessionEntityTypesRequest payload, String token) {
+              return ListSessionEntityTypesRequest.newBuilder(payload).setPageToken(token).build();
+            }
+
+            @Override
+            public ListSessionEntityTypesRequest injectPageSize(
+                ListSessionEntityTypesRequest payload, int pageSize) {
+              return ListSessionEntityTypesRequest.newBuilder(payload)
+                  .setPageSize(pageSize)
+                  .build();
+            }
+
+            @Override
+            public Integer extractPageSize(ListSessionEntityTypesRequest payload) {
+              return payload.getPageSize();
+            }
+
+            @Override
+            public String extractNextToken(ListSessionEntityTypesResponse payload) {
+              return payload.getNextPageToken();
+            }
+
+            @Override
+            public Iterable<SessionEntityType> extractResources(
+                ListSessionEntityTypesResponse payload) {
+              return payload.getSessionEntityTypesList() != null
+                  ? payload.getSessionEntityTypesList()
+                  : ImmutableList.<SessionEntityType>of();
+            }
+          };
+
+  private static final PagedListResponseFactory<
+          ListSessionEntityTypesRequest,
+          ListSessionEntityTypesResponse,
+          ListSessionEntityTypesPagedResponse>
+      LIST_SESSION_ENTITY_TYPES_PAGE_STR_FACT =
+          new PagedListResponseFactory<
+              ListSessionEntityTypesRequest,
+              ListSessionEntityTypesResponse,
+              ListSessionEntityTypesPagedResponse>() {
+            @Override
+            public ApiFuture<ListSessionEntityTypesPagedResponse> getFuturePagedResponse(
+                UnaryCallable<ListSessionEntityTypesRequest, ListSessionEntityTypesResponse>
+                    callable,
+                ListSessionEntityTypesRequest request,
+                ApiCallContext context,
+                ApiFuture<ListSessionEntityTypesResponse> futureResponse) {
+              PageContext<
+                      ListSessionEntityTypesRequest,
+                      ListSessionEntityTypesResponse,
+                      SessionEntityType>
+                  pageContext =
+                      PageContext.create(
+                          callable, LIST_SESSION_ENTITY_TYPES_PAGE_STR_DESC, request, context);
+              return ListSessionEntityTypesPagedResponse.createAsync(pageContext, futureResponse);
+            }
+          };
+
+  /** Builder for SessionEntityTypesStubSettings. */
+  public static class Builder
+      extends StubSettings.Builder<SessionEntityTypesStubSettings, Builder> {
+    private final ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders;
+
+    private final PagedCallSettings.Builder<
+            ListSessionEntityTypesRequest,
+            ListSessionEntityTypesResponse,
+            ListSessionEntityTypesPagedResponse>
+        listSessionEntityTypesSettings;
+    private final UnaryCallSettings.Builder<GetSessionEntityTypeRequest, SessionEntityType>
+        getSessionEntityTypeSettings;
+    private final UnaryCallSettings.Builder<CreateSessionEntityTypeRequest, SessionEntityType>
+        createSessionEntityTypeSettings;
+    private final UnaryCallSettings.Builder<UpdateSessionEntityTypeRequest, SessionEntityType>
+        updateSessionEntityTypeSettings;
+    private final UnaryCallSettings.Builder<DeleteSessionEntityTypeRequest, Empty>
+        deleteSessionEntityTypeSettings;
+
+    private static final ImmutableMap<String, ImmutableSet<StatusCode.Code>>
+        RETRYABLE_CODE_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, ImmutableSet<StatusCode.Code>> definitions =
+          ImmutableMap.builder();
+      definitions.put(
+          "retry_policy_1_codes",
+          ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList(StatusCode.Code.UNAVAILABLE)));
+      definitions.put("no_retry_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      definitions.put(
+          "retry_policy_2_codes",
+          ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList(StatusCode.Code.UNAVAILABLE)));
+      definitions.put(
+          "no_retry_1_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      RETRYABLE_CODE_DEFINITIONS = definitions.build();
+    }
+
+    private static final ImmutableMap<String, RetrySettings> RETRY_PARAM_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, RetrySettings> definitions = ImmutableMap.builder();
+      RetrySettings settings = null;
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(60000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(60000L))
+              .setTotalTimeout(Duration.ofMillis(60000L))
+              .build();
+      definitions.put("retry_policy_1_params", settings);
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(220000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(220000L))
+              .setTotalTimeout(Duration.ofMillis(220000L))
+              .build();
+      definitions.put("retry_policy_2_params", settings);
+      settings = RetrySettings.newBuilder().setRpcTimeoutMultiplier(1.0).build();
+      definitions.put("no_retry_params", settings);
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRpcTimeout(Duration.ofMillis(220000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(220000L))
+              .setTotalTimeout(Duration.ofMillis(220000L))
+              .build();
+      definitions.put("no_retry_1_params", settings);
+      RETRY_PARAM_DEFINITIONS = definitions.build();
+    }
+
+    protected Builder() {
+      this((ClientContext) null);
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(clientContext);
+
+      listSessionEntityTypesSettings =
+          PagedCallSettings.newBuilder(LIST_SESSION_ENTITY_TYPES_PAGE_STR_FACT);
+
+      getSessionEntityTypeSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      createSessionEntityTypeSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      updateSessionEntityTypeSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      deleteSessionEntityTypeSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              listSessionEntityTypesSettings,
+              getSessionEntityTypeSettings,
+              createSessionEntityTypeSettings,
+              updateSessionEntityTypeSettings,
+              deleteSessionEntityTypeSettings);
+
+      initDefaults(this);
+    }
+
+    private static Builder createDefault() {
+      Builder builder = new Builder((ClientContext) null);
+      builder.setTransportChannelProvider(defaultTransportChannelProvider());
+      builder.setCredentialsProvider(defaultCredentialsProviderBuilder().build());
+      builder.setInternalHeaderProvider(defaultApiClientHeaderProviderBuilder().build());
+      builder.setEndpoint(getDefaultEndpoint());
+      return initDefaults(builder);
+    }
+
+    private static Builder initDefaults(Builder builder) {
+
+      builder
+          .listSessionEntityTypesSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .getSessionEntityTypeSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .createSessionEntityTypeSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .updateSessionEntityTypeSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .deleteSessionEntityTypeSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      return builder;
+    }
+
+    protected Builder(SessionEntityTypesStubSettings settings) {
+      super(settings);
+
+      listSessionEntityTypesSettings = settings.listSessionEntityTypesSettings.toBuilder();
+      getSessionEntityTypeSettings = settings.getSessionEntityTypeSettings.toBuilder();
+      createSessionEntityTypeSettings = settings.createSessionEntityTypeSettings.toBuilder();
+      updateSessionEntityTypeSettings = settings.updateSessionEntityTypeSettings.toBuilder();
+      deleteSessionEntityTypeSettings = settings.deleteSessionEntityTypeSettings.toBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              listSessionEntityTypesSettings,
+              getSessionEntityTypeSettings,
+              createSessionEntityTypeSettings,
+              updateSessionEntityTypeSettings,
+              deleteSessionEntityTypeSettings);
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(unaryMethodSettingsBuilders, settingsUpdater);
+      return this;
+    }
+
+    public ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders() {
+      return unaryMethodSettingsBuilders;
+    }
+
+    /** Returns the builder for the settings used for calls to listSessionEntityTypes. */
+    public PagedCallSettings.Builder<
+            ListSessionEntityTypesRequest,
+            ListSessionEntityTypesResponse,
+            ListSessionEntityTypesPagedResponse>
+        listSessionEntityTypesSettings() {
+      return listSessionEntityTypesSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to getSessionEntityType. */
+    public UnaryCallSettings.Builder<GetSessionEntityTypeRequest, SessionEntityType>
+        getSessionEntityTypeSettings() {
+      return getSessionEntityTypeSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to createSessionEntityType. */
+    public UnaryCallSettings.Builder<CreateSessionEntityTypeRequest, SessionEntityType>
+        createSessionEntityTypeSettings() {
+      return createSessionEntityTypeSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to updateSessionEntityType. */
+    public UnaryCallSettings.Builder<UpdateSessionEntityTypeRequest, SessionEntityType>
+        updateSessionEntityTypeSettings() {
+      return updateSessionEntityTypeSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to deleteSessionEntityType. */
+    public UnaryCallSettings.Builder<DeleteSessionEntityTypeRequest, Empty>
+        deleteSessionEntityTypeSettings() {
+      return deleteSessionEntityTypeSettings;
+    }
+
+    @Override
+    public SessionEntityTypesStubSettings build() throws IOException {
+      return new SessionEntityTypesStubSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/SessionsStub.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/SessionsStub.java
new file mode 100644
index 000000000..40d767ef6
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/SessionsStub.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.rpc.BidiStreamingCallable;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Base stub class for Dialogflow API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator")
+@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+public abstract class SessionsStub implements BackgroundResource {
+
+  public UnaryCallable<DetectIntentRequest, DetectIntentResponse> detectIntentCallable() {
+    throw new UnsupportedOperationException("Not implemented: detectIntentCallable()");
+  }
+
+  public BidiStreamingCallable<StreamingDetectIntentRequest, StreamingDetectIntentResponse>
+      streamingDetectIntentCallable() {
+    throw new UnsupportedOperationException("Not implemented: streamingDetectIntentCallable()");
+  }
+
+  public UnaryCallable<MatchIntentRequest, MatchIntentResponse> matchIntentCallable() {
+    throw new UnsupportedOperationException("Not implemented: matchIntentCallable()");
+  }
+
+  public UnaryCallable<FulfillIntentRequest, FulfillIntentResponse> fulfillIntentCallable() {
+    throw new UnsupportedOperationException("Not implemented: fulfillIntentCallable()");
+  }
+
+  @Override
+  public abstract void close();
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/SessionsStubSettings.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/SessionsStubSettings.java
new file mode 100644
index 000000000..9e8f7c58b
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/SessionsStubSettings.java
@@ -0,0 +1,376 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GaxProperties;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.GrpcTransportChannel;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.retrying.RetrySettings;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.StatusCode;
+import com.google.api.gax.rpc.StreamingCallSettings;
+import com.google.api.gax.rpc.StubSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Lists;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+import org.threeten.bp.Duration;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Settings class to configure an instance of {@link SessionsStub}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of detectIntent to 30 seconds:
+ *
+ * <pre>
+ * <code>
+ * SessionsStubSettings.Builder sessionsSettingsBuilder =
+ *     SessionsStubSettings.newBuilder();
+ * sessionsSettingsBuilder
+ *     .detectIntentSettings()
+ *     .setRetrySettings(
+ *         sessionsSettingsBuilder.detectIntentSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * SessionsStubSettings sessionsSettings = sessionsSettingsBuilder.build();
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class SessionsStubSettings extends StubSettings<SessionsStubSettings> {
+  /** The default scopes of the service. */
+  private static final ImmutableList<String> DEFAULT_SERVICE_SCOPES =
+      ImmutableList.<String>builder()
+          .add("https://www.googleapis.com/auth/cloud-platform")
+          .add("https://www.googleapis.com/auth/dialogflow")
+          .build();
+
+  private final UnaryCallSettings<DetectIntentRequest, DetectIntentResponse> detectIntentSettings;
+  private final StreamingCallSettings<StreamingDetectIntentRequest, StreamingDetectIntentResponse>
+      streamingDetectIntentSettings;
+  private final UnaryCallSettings<MatchIntentRequest, MatchIntentResponse> matchIntentSettings;
+  private final UnaryCallSettings<FulfillIntentRequest, FulfillIntentResponse>
+      fulfillIntentSettings;
+
+  /** Returns the object with the settings used for calls to detectIntent. */
+  public UnaryCallSettings<DetectIntentRequest, DetectIntentResponse> detectIntentSettings() {
+    return detectIntentSettings;
+  }
+
+  /** Returns the object with the settings used for calls to streamingDetectIntent. */
+  public StreamingCallSettings<StreamingDetectIntentRequest, StreamingDetectIntentResponse>
+      streamingDetectIntentSettings() {
+    return streamingDetectIntentSettings;
+  }
+
+  /** Returns the object with the settings used for calls to matchIntent. */
+  public UnaryCallSettings<MatchIntentRequest, MatchIntentResponse> matchIntentSettings() {
+    return matchIntentSettings;
+  }
+
+  /** Returns the object with the settings used for calls to fulfillIntent. */
+  public UnaryCallSettings<FulfillIntentRequest, FulfillIntentResponse> fulfillIntentSettings() {
+    return fulfillIntentSettings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public SessionsStub createStub() throws IOException {
+    if (getTransportChannelProvider()
+        .getTransportName()
+        .equals(GrpcTransportChannel.getGrpcTransportName())) {
+      return GrpcSessionsStub.create(this);
+    } else {
+      throw new UnsupportedOperationException(
+          "Transport not supported: " + getTransportChannelProvider().getTransportName());
+    }
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return InstantiatingExecutorProvider.newBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return "dialogflow.googleapis.com:443";
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return DEFAULT_SERVICE_SCOPES;
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return GoogleCredentialsProvider.newBuilder().setScopesToApply(DEFAULT_SERVICE_SCOPES);
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return InstantiatingGrpcChannelProvider.newBuilder()
+        .setMaxInboundMessageSize(Integer.MAX_VALUE);
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return defaultGrpcTransportProviderBuilder().build();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return ApiClientHeaderProvider.newBuilder()
+        .setGeneratedLibToken("gapic", GaxProperties.getLibraryVersion(SessionsStubSettings.class))
+        .setTransportToken(
+            GaxGrpcProperties.getGrpcTokenName(), GaxGrpcProperties.getGrpcVersion());
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected SessionsStubSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+
+    detectIntentSettings = settingsBuilder.detectIntentSettings().build();
+    streamingDetectIntentSettings = settingsBuilder.streamingDetectIntentSettings().build();
+    matchIntentSettings = settingsBuilder.matchIntentSettings().build();
+    fulfillIntentSettings = settingsBuilder.fulfillIntentSettings().build();
+  }
+
+  /** Builder for SessionsStubSettings. */
+  public static class Builder extends StubSettings.Builder<SessionsStubSettings, Builder> {
+    private final ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders;
+
+    private final UnaryCallSettings.Builder<DetectIntentRequest, DetectIntentResponse>
+        detectIntentSettings;
+    private final StreamingCallSettings.Builder<
+            StreamingDetectIntentRequest, StreamingDetectIntentResponse>
+        streamingDetectIntentSettings;
+    private final UnaryCallSettings.Builder<MatchIntentRequest, MatchIntentResponse>
+        matchIntentSettings;
+    private final UnaryCallSettings.Builder<FulfillIntentRequest, FulfillIntentResponse>
+        fulfillIntentSettings;
+
+    private static final ImmutableMap<String, ImmutableSet<StatusCode.Code>>
+        RETRYABLE_CODE_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, ImmutableSet<StatusCode.Code>> definitions =
+          ImmutableMap.builder();
+      definitions.put(
+          "retry_policy_1_codes",
+          ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList(StatusCode.Code.UNAVAILABLE)));
+      definitions.put("no_retry_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      definitions.put(
+          "retry_policy_2_codes",
+          ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList(StatusCode.Code.UNAVAILABLE)));
+      definitions.put(
+          "no_retry_1_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      RETRYABLE_CODE_DEFINITIONS = definitions.build();
+    }
+
+    private static final ImmutableMap<String, RetrySettings> RETRY_PARAM_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, RetrySettings> definitions = ImmutableMap.builder();
+      RetrySettings settings = null;
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(60000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(60000L))
+              .setTotalTimeout(Duration.ofMillis(60000L))
+              .build();
+      definitions.put("retry_policy_1_params", settings);
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(220000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(220000L))
+              .setTotalTimeout(Duration.ofMillis(220000L))
+              .build();
+      definitions.put("retry_policy_2_params", settings);
+      settings = RetrySettings.newBuilder().setRpcTimeoutMultiplier(1.0).build();
+      definitions.put("no_retry_params", settings);
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRpcTimeout(Duration.ofMillis(220000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(220000L))
+              .setTotalTimeout(Duration.ofMillis(220000L))
+              .build();
+      definitions.put("no_retry_1_params", settings);
+      RETRY_PARAM_DEFINITIONS = definitions.build();
+    }
+
+    protected Builder() {
+      this((ClientContext) null);
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(clientContext);
+
+      detectIntentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      streamingDetectIntentSettings = StreamingCallSettings.newBuilder();
+
+      matchIntentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      fulfillIntentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              detectIntentSettings, matchIntentSettings, fulfillIntentSettings);
+
+      initDefaults(this);
+    }
+
+    private static Builder createDefault() {
+      Builder builder = new Builder((ClientContext) null);
+      builder.setTransportChannelProvider(defaultTransportChannelProvider());
+      builder.setCredentialsProvider(defaultCredentialsProviderBuilder().build());
+      builder.setInternalHeaderProvider(defaultApiClientHeaderProviderBuilder().build());
+      builder.setEndpoint(getDefaultEndpoint());
+      return initDefaults(builder);
+    }
+
+    private static Builder initDefaults(Builder builder) {
+
+      builder
+          .detectIntentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_2_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_2_params"));
+
+      builder
+          .matchIntentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .fulfillIntentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      return builder;
+    }
+
+    protected Builder(SessionsStubSettings settings) {
+      super(settings);
+
+      detectIntentSettings = settings.detectIntentSettings.toBuilder();
+      streamingDetectIntentSettings = settings.streamingDetectIntentSettings.toBuilder();
+      matchIntentSettings = settings.matchIntentSettings.toBuilder();
+      fulfillIntentSettings = settings.fulfillIntentSettings.toBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              detectIntentSettings, matchIntentSettings, fulfillIntentSettings);
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(unaryMethodSettingsBuilders, settingsUpdater);
+      return this;
+    }
+
+    public ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders() {
+      return unaryMethodSettingsBuilders;
+    }
+
+    /** Returns the builder for the settings used for calls to detectIntent. */
+    public UnaryCallSettings.Builder<DetectIntentRequest, DetectIntentResponse>
+        detectIntentSettings() {
+      return detectIntentSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to streamingDetectIntent. */
+    public StreamingCallSettings.Builder<
+            StreamingDetectIntentRequest, StreamingDetectIntentResponse>
+        streamingDetectIntentSettings() {
+      return streamingDetectIntentSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to matchIntent. */
+    public UnaryCallSettings.Builder<MatchIntentRequest, MatchIntentResponse>
+        matchIntentSettings() {
+      return matchIntentSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to fulfillIntent. */
+    public UnaryCallSettings.Builder<FulfillIntentRequest, FulfillIntentResponse>
+        fulfillIntentSettings() {
+      return fulfillIntentSettings;
+    }
+
+    @Override
+    public SessionsStubSettings build() throws IOException {
+      return new SessionsStubSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/TransitionRouteGroupsStub.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/TransitionRouteGroupsStub.java
new file mode 100644
index 000000000..f0ea471c4
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/TransitionRouteGroupsStub.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupsClient.ListTransitionRouteGroupsPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest;
+import com.google.protobuf.Empty;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Base stub class for Dialogflow API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator")
+@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+public abstract class TransitionRouteGroupsStub implements BackgroundResource {
+
+  public UnaryCallable<ListTransitionRouteGroupsRequest, ListTransitionRouteGroupsPagedResponse>
+      listTransitionRouteGroupsPagedCallable() {
+    throw new UnsupportedOperationException(
+        "Not implemented: listTransitionRouteGroupsPagedCallable()");
+  }
+
+  public UnaryCallable<ListTransitionRouteGroupsRequest, ListTransitionRouteGroupsResponse>
+      listTransitionRouteGroupsCallable() {
+    throw new UnsupportedOperationException("Not implemented: listTransitionRouteGroupsCallable()");
+  }
+
+  public UnaryCallable<GetTransitionRouteGroupRequest, TransitionRouteGroup>
+      getTransitionRouteGroupCallable() {
+    throw new UnsupportedOperationException("Not implemented: getTransitionRouteGroupCallable()");
+  }
+
+  public UnaryCallable<CreateTransitionRouteGroupRequest, TransitionRouteGroup>
+      createTransitionRouteGroupCallable() {
+    throw new UnsupportedOperationException(
+        "Not implemented: createTransitionRouteGroupCallable()");
+  }
+
+  public UnaryCallable<UpdateTransitionRouteGroupRequest, TransitionRouteGroup>
+      updateTransitionRouteGroupCallable() {
+    throw new UnsupportedOperationException(
+        "Not implemented: updateTransitionRouteGroupCallable()");
+  }
+
+  public UnaryCallable<DeleteTransitionRouteGroupRequest, Empty>
+      deleteTransitionRouteGroupCallable() {
+    throw new UnsupportedOperationException(
+        "Not implemented: deleteTransitionRouteGroupCallable()");
+  }
+
+  @Override
+  public abstract void close();
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/TransitionRouteGroupsStubSettings.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/TransitionRouteGroupsStubSettings.java
new file mode 100644
index 000000000..b33052338
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/TransitionRouteGroupsStubSettings.java
@@ -0,0 +1,519 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupsClient.ListTransitionRouteGroupsPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GaxProperties;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.GrpcTransportChannel;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.retrying.RetrySettings;
+import com.google.api.gax.rpc.ApiCallContext;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.PagedListDescriptor;
+import com.google.api.gax.rpc.PagedListResponseFactory;
+import com.google.api.gax.rpc.StatusCode;
+import com.google.api.gax.rpc.StubSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Lists;
+import com.google.protobuf.Empty;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+import org.threeten.bp.Duration;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Settings class to configure an instance of {@link TransitionRouteGroupsStub}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getTransitionRouteGroup to 30 seconds:
+ *
+ * <pre>
+ * <code>
+ * TransitionRouteGroupsStubSettings.Builder transitionRouteGroupsSettingsBuilder =
+ *     TransitionRouteGroupsStubSettings.newBuilder();
+ * transitionRouteGroupsSettingsBuilder
+ *     .getTransitionRouteGroupSettings()
+ *     .setRetrySettings(
+ *         transitionRouteGroupsSettingsBuilder.getTransitionRouteGroupSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * TransitionRouteGroupsStubSettings transitionRouteGroupsSettings = transitionRouteGroupsSettingsBuilder.build();
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class TransitionRouteGroupsStubSettings
+    extends StubSettings<TransitionRouteGroupsStubSettings> {
+  /** The default scopes of the service. */
+  private static final ImmutableList<String> DEFAULT_SERVICE_SCOPES =
+      ImmutableList.<String>builder()
+          .add("https://www.googleapis.com/auth/cloud-platform")
+          .add("https://www.googleapis.com/auth/dialogflow")
+          .build();
+
+  private final PagedCallSettings<
+          ListTransitionRouteGroupsRequest,
+          ListTransitionRouteGroupsResponse,
+          ListTransitionRouteGroupsPagedResponse>
+      listTransitionRouteGroupsSettings;
+  private final UnaryCallSettings<GetTransitionRouteGroupRequest, TransitionRouteGroup>
+      getTransitionRouteGroupSettings;
+  private final UnaryCallSettings<CreateTransitionRouteGroupRequest, TransitionRouteGroup>
+      createTransitionRouteGroupSettings;
+  private final UnaryCallSettings<UpdateTransitionRouteGroupRequest, TransitionRouteGroup>
+      updateTransitionRouteGroupSettings;
+  private final UnaryCallSettings<DeleteTransitionRouteGroupRequest, Empty>
+      deleteTransitionRouteGroupSettings;
+
+  /** Returns the object with the settings used for calls to listTransitionRouteGroups. */
+  public PagedCallSettings<
+          ListTransitionRouteGroupsRequest,
+          ListTransitionRouteGroupsResponse,
+          ListTransitionRouteGroupsPagedResponse>
+      listTransitionRouteGroupsSettings() {
+    return listTransitionRouteGroupsSettings;
+  }
+
+  /** Returns the object with the settings used for calls to getTransitionRouteGroup. */
+  public UnaryCallSettings<GetTransitionRouteGroupRequest, TransitionRouteGroup>
+      getTransitionRouteGroupSettings() {
+    return getTransitionRouteGroupSettings;
+  }
+
+  /** Returns the object with the settings used for calls to createTransitionRouteGroup. */
+  public UnaryCallSettings<CreateTransitionRouteGroupRequest, TransitionRouteGroup>
+      createTransitionRouteGroupSettings() {
+    return createTransitionRouteGroupSettings;
+  }
+
+  /** Returns the object with the settings used for calls to updateTransitionRouteGroup. */
+  public UnaryCallSettings<UpdateTransitionRouteGroupRequest, TransitionRouteGroup>
+      updateTransitionRouteGroupSettings() {
+    return updateTransitionRouteGroupSettings;
+  }
+
+  /** Returns the object with the settings used for calls to deleteTransitionRouteGroup. */
+  public UnaryCallSettings<DeleteTransitionRouteGroupRequest, Empty>
+      deleteTransitionRouteGroupSettings() {
+    return deleteTransitionRouteGroupSettings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public TransitionRouteGroupsStub createStub() throws IOException {
+    if (getTransportChannelProvider()
+        .getTransportName()
+        .equals(GrpcTransportChannel.getGrpcTransportName())) {
+      return GrpcTransitionRouteGroupsStub.create(this);
+    } else {
+      throw new UnsupportedOperationException(
+          "Transport not supported: " + getTransportChannelProvider().getTransportName());
+    }
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return InstantiatingExecutorProvider.newBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return "dialogflow.googleapis.com:443";
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return DEFAULT_SERVICE_SCOPES;
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return GoogleCredentialsProvider.newBuilder().setScopesToApply(DEFAULT_SERVICE_SCOPES);
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return InstantiatingGrpcChannelProvider.newBuilder()
+        .setMaxInboundMessageSize(Integer.MAX_VALUE);
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return defaultGrpcTransportProviderBuilder().build();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return ApiClientHeaderProvider.newBuilder()
+        .setGeneratedLibToken(
+            "gapic", GaxProperties.getLibraryVersion(TransitionRouteGroupsStubSettings.class))
+        .setTransportToken(
+            GaxGrpcProperties.getGrpcTokenName(), GaxGrpcProperties.getGrpcVersion());
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected TransitionRouteGroupsStubSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+
+    listTransitionRouteGroupsSettings = settingsBuilder.listTransitionRouteGroupsSettings().build();
+    getTransitionRouteGroupSettings = settingsBuilder.getTransitionRouteGroupSettings().build();
+    createTransitionRouteGroupSettings =
+        settingsBuilder.createTransitionRouteGroupSettings().build();
+    updateTransitionRouteGroupSettings =
+        settingsBuilder.updateTransitionRouteGroupSettings().build();
+    deleteTransitionRouteGroupSettings =
+        settingsBuilder.deleteTransitionRouteGroupSettings().build();
+  }
+
+  private static final PagedListDescriptor<
+          ListTransitionRouteGroupsRequest, ListTransitionRouteGroupsResponse, TransitionRouteGroup>
+      LIST_TRANSITION_ROUTE_GROUPS_PAGE_STR_DESC =
+          new PagedListDescriptor<
+              ListTransitionRouteGroupsRequest,
+              ListTransitionRouteGroupsResponse,
+              TransitionRouteGroup>() {
+            @Override
+            public String emptyToken() {
+              return "";
+            }
+
+            @Override
+            public ListTransitionRouteGroupsRequest injectToken(
+                ListTransitionRouteGroupsRequest payload, String token) {
+              return ListTransitionRouteGroupsRequest.newBuilder(payload)
+                  .setPageToken(token)
+                  .build();
+            }
+
+            @Override
+            public ListTransitionRouteGroupsRequest injectPageSize(
+                ListTransitionRouteGroupsRequest payload, int pageSize) {
+              return ListTransitionRouteGroupsRequest.newBuilder(payload)
+                  .setPageSize(pageSize)
+                  .build();
+            }
+
+            @Override
+            public Integer extractPageSize(ListTransitionRouteGroupsRequest payload) {
+              return payload.getPageSize();
+            }
+
+            @Override
+            public String extractNextToken(ListTransitionRouteGroupsResponse payload) {
+              return payload.getNextPageToken();
+            }
+
+            @Override
+            public Iterable<TransitionRouteGroup> extractResources(
+                ListTransitionRouteGroupsResponse payload) {
+              return payload.getTransitionRouteGroupsList() != null
+                  ? payload.getTransitionRouteGroupsList()
+                  : ImmutableList.<TransitionRouteGroup>of();
+            }
+          };
+
+  private static final PagedListResponseFactory<
+          ListTransitionRouteGroupsRequest,
+          ListTransitionRouteGroupsResponse,
+          ListTransitionRouteGroupsPagedResponse>
+      LIST_TRANSITION_ROUTE_GROUPS_PAGE_STR_FACT =
+          new PagedListResponseFactory<
+              ListTransitionRouteGroupsRequest,
+              ListTransitionRouteGroupsResponse,
+              ListTransitionRouteGroupsPagedResponse>() {
+            @Override
+            public ApiFuture<ListTransitionRouteGroupsPagedResponse> getFuturePagedResponse(
+                UnaryCallable<ListTransitionRouteGroupsRequest, ListTransitionRouteGroupsResponse>
+                    callable,
+                ListTransitionRouteGroupsRequest request,
+                ApiCallContext context,
+                ApiFuture<ListTransitionRouteGroupsResponse> futureResponse) {
+              PageContext<
+                      ListTransitionRouteGroupsRequest,
+                      ListTransitionRouteGroupsResponse,
+                      TransitionRouteGroup>
+                  pageContext =
+                      PageContext.create(
+                          callable, LIST_TRANSITION_ROUTE_GROUPS_PAGE_STR_DESC, request, context);
+              return ListTransitionRouteGroupsPagedResponse.createAsync(
+                  pageContext, futureResponse);
+            }
+          };
+
+  /** Builder for TransitionRouteGroupsStubSettings. */
+  public static class Builder
+      extends StubSettings.Builder<TransitionRouteGroupsStubSettings, Builder> {
+    private final ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders;
+
+    private final PagedCallSettings.Builder<
+            ListTransitionRouteGroupsRequest,
+            ListTransitionRouteGroupsResponse,
+            ListTransitionRouteGroupsPagedResponse>
+        listTransitionRouteGroupsSettings;
+    private final UnaryCallSettings.Builder<GetTransitionRouteGroupRequest, TransitionRouteGroup>
+        getTransitionRouteGroupSettings;
+    private final UnaryCallSettings.Builder<CreateTransitionRouteGroupRequest, TransitionRouteGroup>
+        createTransitionRouteGroupSettings;
+    private final UnaryCallSettings.Builder<UpdateTransitionRouteGroupRequest, TransitionRouteGroup>
+        updateTransitionRouteGroupSettings;
+    private final UnaryCallSettings.Builder<DeleteTransitionRouteGroupRequest, Empty>
+        deleteTransitionRouteGroupSettings;
+
+    private static final ImmutableMap<String, ImmutableSet<StatusCode.Code>>
+        RETRYABLE_CODE_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, ImmutableSet<StatusCode.Code>> definitions =
+          ImmutableMap.builder();
+      definitions.put(
+          "retry_policy_1_codes",
+          ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList(StatusCode.Code.UNAVAILABLE)));
+      definitions.put("no_retry_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      definitions.put(
+          "retry_policy_2_codes",
+          ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList(StatusCode.Code.UNAVAILABLE)));
+      definitions.put(
+          "no_retry_1_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      RETRYABLE_CODE_DEFINITIONS = definitions.build();
+    }
+
+    private static final ImmutableMap<String, RetrySettings> RETRY_PARAM_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, RetrySettings> definitions = ImmutableMap.builder();
+      RetrySettings settings = null;
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(60000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(60000L))
+              .setTotalTimeout(Duration.ofMillis(60000L))
+              .build();
+      definitions.put("retry_policy_1_params", settings);
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(220000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(220000L))
+              .setTotalTimeout(Duration.ofMillis(220000L))
+              .build();
+      definitions.put("retry_policy_2_params", settings);
+      settings = RetrySettings.newBuilder().setRpcTimeoutMultiplier(1.0).build();
+      definitions.put("no_retry_params", settings);
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRpcTimeout(Duration.ofMillis(220000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(220000L))
+              .setTotalTimeout(Duration.ofMillis(220000L))
+              .build();
+      definitions.put("no_retry_1_params", settings);
+      RETRY_PARAM_DEFINITIONS = definitions.build();
+    }
+
+    protected Builder() {
+      this((ClientContext) null);
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(clientContext);
+
+      listTransitionRouteGroupsSettings =
+          PagedCallSettings.newBuilder(LIST_TRANSITION_ROUTE_GROUPS_PAGE_STR_FACT);
+
+      getTransitionRouteGroupSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      createTransitionRouteGroupSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      updateTransitionRouteGroupSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      deleteTransitionRouteGroupSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              listTransitionRouteGroupsSettings,
+              getTransitionRouteGroupSettings,
+              createTransitionRouteGroupSettings,
+              updateTransitionRouteGroupSettings,
+              deleteTransitionRouteGroupSettings);
+
+      initDefaults(this);
+    }
+
+    private static Builder createDefault() {
+      Builder builder = new Builder((ClientContext) null);
+      builder.setTransportChannelProvider(defaultTransportChannelProvider());
+      builder.setCredentialsProvider(defaultCredentialsProviderBuilder().build());
+      builder.setInternalHeaderProvider(defaultApiClientHeaderProviderBuilder().build());
+      builder.setEndpoint(getDefaultEndpoint());
+      return initDefaults(builder);
+    }
+
+    private static Builder initDefaults(Builder builder) {
+
+      builder
+          .listTransitionRouteGroupsSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .getTransitionRouteGroupSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .createTransitionRouteGroupSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .updateTransitionRouteGroupSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .deleteTransitionRouteGroupSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      return builder;
+    }
+
+    protected Builder(TransitionRouteGroupsStubSettings settings) {
+      super(settings);
+
+      listTransitionRouteGroupsSettings = settings.listTransitionRouteGroupsSettings.toBuilder();
+      getTransitionRouteGroupSettings = settings.getTransitionRouteGroupSettings.toBuilder();
+      createTransitionRouteGroupSettings = settings.createTransitionRouteGroupSettings.toBuilder();
+      updateTransitionRouteGroupSettings = settings.updateTransitionRouteGroupSettings.toBuilder();
+      deleteTransitionRouteGroupSettings = settings.deleteTransitionRouteGroupSettings.toBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              listTransitionRouteGroupsSettings,
+              getTransitionRouteGroupSettings,
+              createTransitionRouteGroupSettings,
+              updateTransitionRouteGroupSettings,
+              deleteTransitionRouteGroupSettings);
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(unaryMethodSettingsBuilders, settingsUpdater);
+      return this;
+    }
+
+    public ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders() {
+      return unaryMethodSettingsBuilders;
+    }
+
+    /** Returns the builder for the settings used for calls to listTransitionRouteGroups. */
+    public PagedCallSettings.Builder<
+            ListTransitionRouteGroupsRequest,
+            ListTransitionRouteGroupsResponse,
+            ListTransitionRouteGroupsPagedResponse>
+        listTransitionRouteGroupsSettings() {
+      return listTransitionRouteGroupsSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to getTransitionRouteGroup. */
+    public UnaryCallSettings.Builder<GetTransitionRouteGroupRequest, TransitionRouteGroup>
+        getTransitionRouteGroupSettings() {
+      return getTransitionRouteGroupSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to createTransitionRouteGroup. */
+    public UnaryCallSettings.Builder<CreateTransitionRouteGroupRequest, TransitionRouteGroup>
+        createTransitionRouteGroupSettings() {
+      return createTransitionRouteGroupSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to updateTransitionRouteGroup. */
+    public UnaryCallSettings.Builder<UpdateTransitionRouteGroupRequest, TransitionRouteGroup>
+        updateTransitionRouteGroupSettings() {
+      return updateTransitionRouteGroupSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to deleteTransitionRouteGroup. */
+    public UnaryCallSettings.Builder<DeleteTransitionRouteGroupRequest, Empty>
+        deleteTransitionRouteGroupSettings() {
+      return deleteTransitionRouteGroupSettings;
+    }
+
+    @Override
+    public TransitionRouteGroupsStubSettings build() throws IOException {
+      return new TransitionRouteGroupsStubSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/VersionsStub.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/VersionsStub.java
new file mode 100644
index 000000000..c8f517ae4
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/VersionsStub.java
@@ -0,0 +1,95 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.VersionsClient.ListVersionsPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.Version;
+import com.google.longrunning.Operation;
+import com.google.longrunning.stub.OperationsStub;
+import com.google.protobuf.Empty;
+import com.google.protobuf.Struct;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Base stub class for Dialogflow API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator")
+@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+public abstract class VersionsStub implements BackgroundResource {
+
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationsStub getOperationsStub() {
+    throw new UnsupportedOperationException("Not implemented: getOperationsStub()");
+  }
+
+  public UnaryCallable<ListVersionsRequest, ListVersionsPagedResponse> listVersionsPagedCallable() {
+    throw new UnsupportedOperationException("Not implemented: listVersionsPagedCallable()");
+  }
+
+  public UnaryCallable<ListVersionsRequest, ListVersionsResponse> listVersionsCallable() {
+    throw new UnsupportedOperationException("Not implemented: listVersionsCallable()");
+  }
+
+  public UnaryCallable<GetVersionRequest, Version> getVersionCallable() {
+    throw new UnsupportedOperationException("Not implemented: getVersionCallable()");
+  }
+
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationCallable<CreateVersionRequest, Version, CreateVersionOperationMetadata>
+      createVersionOperationCallable() {
+    throw new UnsupportedOperationException("Not implemented: createVersionOperationCallable()");
+  }
+
+  public UnaryCallable<CreateVersionRequest, Operation> createVersionCallable() {
+    throw new UnsupportedOperationException("Not implemented: createVersionCallable()");
+  }
+
+  public UnaryCallable<UpdateVersionRequest, Version> updateVersionCallable() {
+    throw new UnsupportedOperationException("Not implemented: updateVersionCallable()");
+  }
+
+  public UnaryCallable<DeleteVersionRequest, Empty> deleteVersionCallable() {
+    throw new UnsupportedOperationException("Not implemented: deleteVersionCallable()");
+  }
+
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationCallable<LoadVersionRequest, Empty, Struct> loadVersionOperationCallable() {
+    throw new UnsupportedOperationException("Not implemented: loadVersionOperationCallable()");
+  }
+
+  public UnaryCallable<LoadVersionRequest, Operation> loadVersionCallable() {
+    throw new UnsupportedOperationException("Not implemented: loadVersionCallable()");
+  }
+
+  @Override
+  public abstract void close();
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/VersionsStubSettings.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/VersionsStubSettings.java
new file mode 100644
index 000000000..ea2ee7465
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/VersionsStubSettings.java
@@ -0,0 +1,589 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.VersionsClient.ListVersionsPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GaxProperties;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.GrpcTransportChannel;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.grpc.ProtoOperationTransformers;
+import com.google.api.gax.longrunning.OperationSnapshot;
+import com.google.api.gax.longrunning.OperationTimedPollAlgorithm;
+import com.google.api.gax.retrying.RetrySettings;
+import com.google.api.gax.rpc.ApiCallContext;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.PagedListDescriptor;
+import com.google.api.gax.rpc.PagedListResponseFactory;
+import com.google.api.gax.rpc.StatusCode;
+import com.google.api.gax.rpc.StubSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.Version;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Lists;
+import com.google.longrunning.Operation;
+import com.google.protobuf.Empty;
+import com.google.protobuf.Struct;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+import org.threeten.bp.Duration;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Settings class to configure an instance of {@link VersionsStub}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getVersion to 30 seconds:
+ *
+ * <pre>
+ * <code>
+ * VersionsStubSettings.Builder versionsSettingsBuilder =
+ *     VersionsStubSettings.newBuilder();
+ * versionsSettingsBuilder
+ *     .getVersionSettings()
+ *     .setRetrySettings(
+ *         versionsSettingsBuilder.getVersionSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * VersionsStubSettings versionsSettings = versionsSettingsBuilder.build();
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class VersionsStubSettings extends StubSettings<VersionsStubSettings> {
+  /** The default scopes of the service. */
+  private static final ImmutableList<String> DEFAULT_SERVICE_SCOPES =
+      ImmutableList.<String>builder()
+          .add("https://www.googleapis.com/auth/cloud-platform")
+          .add("https://www.googleapis.com/auth/dialogflow")
+          .build();
+
+  private final PagedCallSettings<
+          ListVersionsRequest, ListVersionsResponse, ListVersionsPagedResponse>
+      listVersionsSettings;
+  private final UnaryCallSettings<GetVersionRequest, Version> getVersionSettings;
+  private final UnaryCallSettings<CreateVersionRequest, Operation> createVersionSettings;
+  private final OperationCallSettings<CreateVersionRequest, Version, CreateVersionOperationMetadata>
+      createVersionOperationSettings;
+  private final UnaryCallSettings<UpdateVersionRequest, Version> updateVersionSettings;
+  private final UnaryCallSettings<DeleteVersionRequest, Empty> deleteVersionSettings;
+  private final UnaryCallSettings<LoadVersionRequest, Operation> loadVersionSettings;
+  private final OperationCallSettings<LoadVersionRequest, Empty, Struct>
+      loadVersionOperationSettings;
+
+  /** Returns the object with the settings used for calls to listVersions. */
+  public PagedCallSettings<ListVersionsRequest, ListVersionsResponse, ListVersionsPagedResponse>
+      listVersionsSettings() {
+    return listVersionsSettings;
+  }
+
+  /** Returns the object with the settings used for calls to getVersion. */
+  public UnaryCallSettings<GetVersionRequest, Version> getVersionSettings() {
+    return getVersionSettings;
+  }
+
+  /** Returns the object with the settings used for calls to createVersion. */
+  public UnaryCallSettings<CreateVersionRequest, Operation> createVersionSettings() {
+    return createVersionSettings;
+  }
+
+  /** Returns the object with the settings used for calls to createVersion. */
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationCallSettings<CreateVersionRequest, Version, CreateVersionOperationMetadata>
+      createVersionOperationSettings() {
+    return createVersionOperationSettings;
+  }
+
+  /** Returns the object with the settings used for calls to updateVersion. */
+  public UnaryCallSettings<UpdateVersionRequest, Version> updateVersionSettings() {
+    return updateVersionSettings;
+  }
+
+  /** Returns the object with the settings used for calls to deleteVersion. */
+  public UnaryCallSettings<DeleteVersionRequest, Empty> deleteVersionSettings() {
+    return deleteVersionSettings;
+  }
+
+  /** Returns the object with the settings used for calls to loadVersion. */
+  public UnaryCallSettings<LoadVersionRequest, Operation> loadVersionSettings() {
+    return loadVersionSettings;
+  }
+
+  /** Returns the object with the settings used for calls to loadVersion. */
+  @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
+  public OperationCallSettings<LoadVersionRequest, Empty, Struct> loadVersionOperationSettings() {
+    return loadVersionOperationSettings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public VersionsStub createStub() throws IOException {
+    if (getTransportChannelProvider()
+        .getTransportName()
+        .equals(GrpcTransportChannel.getGrpcTransportName())) {
+      return GrpcVersionsStub.create(this);
+    } else {
+      throw new UnsupportedOperationException(
+          "Transport not supported: " + getTransportChannelProvider().getTransportName());
+    }
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return InstantiatingExecutorProvider.newBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return "dialogflow.googleapis.com:443";
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return DEFAULT_SERVICE_SCOPES;
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return GoogleCredentialsProvider.newBuilder().setScopesToApply(DEFAULT_SERVICE_SCOPES);
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return InstantiatingGrpcChannelProvider.newBuilder()
+        .setMaxInboundMessageSize(Integer.MAX_VALUE);
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return defaultGrpcTransportProviderBuilder().build();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return ApiClientHeaderProvider.newBuilder()
+        .setGeneratedLibToken("gapic", GaxProperties.getLibraryVersion(VersionsStubSettings.class))
+        .setTransportToken(
+            GaxGrpcProperties.getGrpcTokenName(), GaxGrpcProperties.getGrpcVersion());
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected VersionsStubSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+
+    listVersionsSettings = settingsBuilder.listVersionsSettings().build();
+    getVersionSettings = settingsBuilder.getVersionSettings().build();
+    createVersionSettings = settingsBuilder.createVersionSettings().build();
+    createVersionOperationSettings = settingsBuilder.createVersionOperationSettings().build();
+    updateVersionSettings = settingsBuilder.updateVersionSettings().build();
+    deleteVersionSettings = settingsBuilder.deleteVersionSettings().build();
+    loadVersionSettings = settingsBuilder.loadVersionSettings().build();
+    loadVersionOperationSettings = settingsBuilder.loadVersionOperationSettings().build();
+  }
+
+  private static final PagedListDescriptor<ListVersionsRequest, ListVersionsResponse, Version>
+      LIST_VERSIONS_PAGE_STR_DESC =
+          new PagedListDescriptor<ListVersionsRequest, ListVersionsResponse, Version>() {
+            @Override
+            public String emptyToken() {
+              return "";
+            }
+
+            @Override
+            public ListVersionsRequest injectToken(ListVersionsRequest payload, String token) {
+              return ListVersionsRequest.newBuilder(payload).setPageToken(token).build();
+            }
+
+            @Override
+            public ListVersionsRequest injectPageSize(ListVersionsRequest payload, int pageSize) {
+              return ListVersionsRequest.newBuilder(payload).setPageSize(pageSize).build();
+            }
+
+            @Override
+            public Integer extractPageSize(ListVersionsRequest payload) {
+              return payload.getPageSize();
+            }
+
+            @Override
+            public String extractNextToken(ListVersionsResponse payload) {
+              return payload.getNextPageToken();
+            }
+
+            @Override
+            public Iterable<Version> extractResources(ListVersionsResponse payload) {
+              return payload.getVersionsList() != null
+                  ? payload.getVersionsList()
+                  : ImmutableList.<Version>of();
+            }
+          };
+
+  private static final PagedListResponseFactory<
+          ListVersionsRequest, ListVersionsResponse, ListVersionsPagedResponse>
+      LIST_VERSIONS_PAGE_STR_FACT =
+          new PagedListResponseFactory<
+              ListVersionsRequest, ListVersionsResponse, ListVersionsPagedResponse>() {
+            @Override
+            public ApiFuture<ListVersionsPagedResponse> getFuturePagedResponse(
+                UnaryCallable<ListVersionsRequest, ListVersionsResponse> callable,
+                ListVersionsRequest request,
+                ApiCallContext context,
+                ApiFuture<ListVersionsResponse> futureResponse) {
+              PageContext<ListVersionsRequest, ListVersionsResponse, Version> pageContext =
+                  PageContext.create(callable, LIST_VERSIONS_PAGE_STR_DESC, request, context);
+              return ListVersionsPagedResponse.createAsync(pageContext, futureResponse);
+            }
+          };
+
+  /** Builder for VersionsStubSettings. */
+  public static class Builder extends StubSettings.Builder<VersionsStubSettings, Builder> {
+    private final ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders;
+
+    private final PagedCallSettings.Builder<
+            ListVersionsRequest, ListVersionsResponse, ListVersionsPagedResponse>
+        listVersionsSettings;
+    private final UnaryCallSettings.Builder<GetVersionRequest, Version> getVersionSettings;
+    private final UnaryCallSettings.Builder<CreateVersionRequest, Operation> createVersionSettings;
+    private final OperationCallSettings.Builder<
+            CreateVersionRequest, Version, CreateVersionOperationMetadata>
+        createVersionOperationSettings;
+    private final UnaryCallSettings.Builder<UpdateVersionRequest, Version> updateVersionSettings;
+    private final UnaryCallSettings.Builder<DeleteVersionRequest, Empty> deleteVersionSettings;
+    private final UnaryCallSettings.Builder<LoadVersionRequest, Operation> loadVersionSettings;
+    private final OperationCallSettings.Builder<LoadVersionRequest, Empty, Struct>
+        loadVersionOperationSettings;
+
+    private static final ImmutableMap<String, ImmutableSet<StatusCode.Code>>
+        RETRYABLE_CODE_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, ImmutableSet<StatusCode.Code>> definitions =
+          ImmutableMap.builder();
+      definitions.put(
+          "retry_policy_1_codes",
+          ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList(StatusCode.Code.UNAVAILABLE)));
+      definitions.put("no_retry_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      definitions.put(
+          "retry_policy_2_codes",
+          ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList(StatusCode.Code.UNAVAILABLE)));
+      definitions.put(
+          "no_retry_1_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      RETRYABLE_CODE_DEFINITIONS = definitions.build();
+    }
+
+    private static final ImmutableMap<String, RetrySettings> RETRY_PARAM_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, RetrySettings> definitions = ImmutableMap.builder();
+      RetrySettings settings = null;
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(60000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(60000L))
+              .setTotalTimeout(Duration.ofMillis(60000L))
+              .build();
+      definitions.put("retry_policy_1_params", settings);
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(220000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(220000L))
+              .setTotalTimeout(Duration.ofMillis(220000L))
+              .build();
+      definitions.put("retry_policy_2_params", settings);
+      settings = RetrySettings.newBuilder().setRpcTimeoutMultiplier(1.0).build();
+      definitions.put("no_retry_params", settings);
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRpcTimeout(Duration.ofMillis(220000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(220000L))
+              .setTotalTimeout(Duration.ofMillis(220000L))
+              .build();
+      definitions.put("no_retry_1_params", settings);
+      RETRY_PARAM_DEFINITIONS = definitions.build();
+    }
+
+    protected Builder() {
+      this((ClientContext) null);
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(clientContext);
+
+      listVersionsSettings = PagedCallSettings.newBuilder(LIST_VERSIONS_PAGE_STR_FACT);
+
+      getVersionSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      createVersionSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      createVersionOperationSettings = OperationCallSettings.newBuilder();
+
+      updateVersionSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      deleteVersionSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      loadVersionSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      loadVersionOperationSettings = OperationCallSettings.newBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              listVersionsSettings,
+              getVersionSettings,
+              createVersionSettings,
+              updateVersionSettings,
+              deleteVersionSettings,
+              loadVersionSettings);
+
+      initDefaults(this);
+    }
+
+    private static Builder createDefault() {
+      Builder builder = new Builder((ClientContext) null);
+      builder.setTransportChannelProvider(defaultTransportChannelProvider());
+      builder.setCredentialsProvider(defaultCredentialsProviderBuilder().build());
+      builder.setInternalHeaderProvider(defaultApiClientHeaderProviderBuilder().build());
+      builder.setEndpoint(getDefaultEndpoint());
+      return initDefaults(builder);
+    }
+
+    private static Builder initDefaults(Builder builder) {
+
+      builder
+          .listVersionsSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .getVersionSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .createVersionSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .updateVersionSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .deleteVersionSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .loadVersionSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+      builder
+          .createVersionOperationSettings()
+          .setInitialCallSettings(
+              UnaryCallSettings
+                  .<CreateVersionRequest, OperationSnapshot>newUnaryCallSettingsBuilder()
+                  .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+                  .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"))
+                  .build())
+          .setResponseTransformer(
+              ProtoOperationTransformers.ResponseTransformer.create(Version.class))
+          .setMetadataTransformer(
+              ProtoOperationTransformers.MetadataTransformer.create(
+                  CreateVersionOperationMetadata.class))
+          .setPollingAlgorithm(
+              OperationTimedPollAlgorithm.create(
+                  RetrySettings.newBuilder()
+                      .setInitialRetryDelay(Duration.ofMillis(500L))
+                      .setRetryDelayMultiplier(1.5)
+                      .setMaxRetryDelay(Duration.ofMillis(5000L))
+                      .setInitialRpcTimeout(Duration.ZERO) // ignored
+                      .setRpcTimeoutMultiplier(1.0) // ignored
+                      .setMaxRpcTimeout(Duration.ZERO) // ignored
+                      .setTotalTimeout(Duration.ofMillis(300000L))
+                      .build()));
+      builder
+          .loadVersionOperationSettings()
+          .setInitialCallSettings(
+              UnaryCallSettings.<LoadVersionRequest, OperationSnapshot>newUnaryCallSettingsBuilder()
+                  .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+                  .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"))
+                  .build())
+          .setResponseTransformer(
+              ProtoOperationTransformers.ResponseTransformer.create(Empty.class))
+          .setMetadataTransformer(
+              ProtoOperationTransformers.MetadataTransformer.create(Struct.class))
+          .setPollingAlgorithm(
+              OperationTimedPollAlgorithm.create(
+                  RetrySettings.newBuilder()
+                      .setInitialRetryDelay(Duration.ofMillis(500L))
+                      .setRetryDelayMultiplier(1.5)
+                      .setMaxRetryDelay(Duration.ofMillis(5000L))
+                      .setInitialRpcTimeout(Duration.ZERO) // ignored
+                      .setRpcTimeoutMultiplier(1.0) // ignored
+                      .setMaxRpcTimeout(Duration.ZERO) // ignored
+                      .setTotalTimeout(Duration.ofMillis(300000L))
+                      .build()));
+
+      return builder;
+    }
+
+    protected Builder(VersionsStubSettings settings) {
+      super(settings);
+
+      listVersionsSettings = settings.listVersionsSettings.toBuilder();
+      getVersionSettings = settings.getVersionSettings.toBuilder();
+      createVersionSettings = settings.createVersionSettings.toBuilder();
+      createVersionOperationSettings = settings.createVersionOperationSettings.toBuilder();
+      updateVersionSettings = settings.updateVersionSettings.toBuilder();
+      deleteVersionSettings = settings.deleteVersionSettings.toBuilder();
+      loadVersionSettings = settings.loadVersionSettings.toBuilder();
+      loadVersionOperationSettings = settings.loadVersionOperationSettings.toBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              listVersionsSettings,
+              getVersionSettings,
+              createVersionSettings,
+              updateVersionSettings,
+              deleteVersionSettings,
+              loadVersionSettings);
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(unaryMethodSettingsBuilders, settingsUpdater);
+      return this;
+    }
+
+    public ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders() {
+      return unaryMethodSettingsBuilders;
+    }
+
+    /** Returns the builder for the settings used for calls to listVersions. */
+    public PagedCallSettings.Builder<
+            ListVersionsRequest, ListVersionsResponse, ListVersionsPagedResponse>
+        listVersionsSettings() {
+      return listVersionsSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to getVersion. */
+    public UnaryCallSettings.Builder<GetVersionRequest, Version> getVersionSettings() {
+      return getVersionSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to createVersion. */
+    public UnaryCallSettings.Builder<CreateVersionRequest, Operation> createVersionSettings() {
+      return createVersionSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to createVersion. */
+    @BetaApi(
+        "The surface for use by generated code is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<
+            CreateVersionRequest, Version, CreateVersionOperationMetadata>
+        createVersionOperationSettings() {
+      return createVersionOperationSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to updateVersion. */
+    public UnaryCallSettings.Builder<UpdateVersionRequest, Version> updateVersionSettings() {
+      return updateVersionSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to deleteVersion. */
+    public UnaryCallSettings.Builder<DeleteVersionRequest, Empty> deleteVersionSettings() {
+      return deleteVersionSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to loadVersion. */
+    public UnaryCallSettings.Builder<LoadVersionRequest, Operation> loadVersionSettings() {
+      return loadVersionSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to loadVersion. */
+    @BetaApi(
+        "The surface for use by generated code is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<LoadVersionRequest, Empty, Struct>
+        loadVersionOperationSettings() {
+      return loadVersionOperationSettings;
+    }
+
+    @Override
+    public VersionsStubSettings build() throws IOException {
+      return new VersionsStubSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/WebhooksStub.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/WebhooksStub.java
new file mode 100644
index 000000000..e0c1fdeb4
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/WebhooksStub.java
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.WebhooksClient.ListWebhooksPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.Webhook;
+import com.google.protobuf.Empty;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Base stub class for Dialogflow API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator")
+@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+public abstract class WebhooksStub implements BackgroundResource {
+
+  public UnaryCallable<ListWebhooksRequest, ListWebhooksPagedResponse> listWebhooksPagedCallable() {
+    throw new UnsupportedOperationException("Not implemented: listWebhooksPagedCallable()");
+  }
+
+  public UnaryCallable<ListWebhooksRequest, ListWebhooksResponse> listWebhooksCallable() {
+    throw new UnsupportedOperationException("Not implemented: listWebhooksCallable()");
+  }
+
+  public UnaryCallable<GetWebhookRequest, Webhook> getWebhookCallable() {
+    throw new UnsupportedOperationException("Not implemented: getWebhookCallable()");
+  }
+
+  public UnaryCallable<CreateWebhookRequest, Webhook> createWebhookCallable() {
+    throw new UnsupportedOperationException("Not implemented: createWebhookCallable()");
+  }
+
+  public UnaryCallable<UpdateWebhookRequest, Webhook> updateWebhookCallable() {
+    throw new UnsupportedOperationException("Not implemented: updateWebhookCallable()");
+  }
+
+  public UnaryCallable<DeleteWebhookRequest, Empty> deleteWebhookCallable() {
+    throw new UnsupportedOperationException("Not implemented: deleteWebhookCallable()");
+  }
+
+  @Override
+  public abstract void close();
+}
diff --git a/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/WebhooksStubSettings.java b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/WebhooksStubSettings.java
new file mode 100644
index 000000000..a898bec2d
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/stub/WebhooksStubSettings.java
@@ -0,0 +1,465 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1.stub;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.WebhooksClient.ListWebhooksPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GaxProperties;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.GrpcTransportChannel;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.retrying.RetrySettings;
+import com.google.api.gax.rpc.ApiCallContext;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.PagedListDescriptor;
+import com.google.api.gax.rpc.PagedListResponseFactory;
+import com.google.api.gax.rpc.StatusCode;
+import com.google.api.gax.rpc.StubSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse;
+import com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.Webhook;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Lists;
+import com.google.protobuf.Empty;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+import org.threeten.bp.Duration;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS
+/**
+ * Settings class to configure an instance of {@link WebhooksStub}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getWebhook to 30 seconds:
+ *
+ * <pre>
+ * <code>
+ * WebhooksStubSettings.Builder webhooksSettingsBuilder =
+ *     WebhooksStubSettings.newBuilder();
+ * webhooksSettingsBuilder
+ *     .getWebhookSettings()
+ *     .setRetrySettings(
+ *         webhooksSettingsBuilder.getWebhookSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * WebhooksStubSettings webhooksSettings = webhooksSettingsBuilder.build();
+ * </code>
+ * </pre>
+ */
+@Generated("by gapic-generator")
+@BetaApi
+public class WebhooksStubSettings extends StubSettings<WebhooksStubSettings> {
+  /** The default scopes of the service. */
+  private static final ImmutableList<String> DEFAULT_SERVICE_SCOPES =
+      ImmutableList.<String>builder()
+          .add("https://www.googleapis.com/auth/cloud-platform")
+          .add("https://www.googleapis.com/auth/dialogflow")
+          .build();
+
+  private final PagedCallSettings<
+          ListWebhooksRequest, ListWebhooksResponse, ListWebhooksPagedResponse>
+      listWebhooksSettings;
+  private final UnaryCallSettings<GetWebhookRequest, Webhook> getWebhookSettings;
+  private final UnaryCallSettings<CreateWebhookRequest, Webhook> createWebhookSettings;
+  private final UnaryCallSettings<UpdateWebhookRequest, Webhook> updateWebhookSettings;
+  private final UnaryCallSettings<DeleteWebhookRequest, Empty> deleteWebhookSettings;
+
+  /** Returns the object with the settings used for calls to listWebhooks. */
+  public PagedCallSettings<ListWebhooksRequest, ListWebhooksResponse, ListWebhooksPagedResponse>
+      listWebhooksSettings() {
+    return listWebhooksSettings;
+  }
+
+  /** Returns the object with the settings used for calls to getWebhook. */
+  public UnaryCallSettings<GetWebhookRequest, Webhook> getWebhookSettings() {
+    return getWebhookSettings;
+  }
+
+  /** Returns the object with the settings used for calls to createWebhook. */
+  public UnaryCallSettings<CreateWebhookRequest, Webhook> createWebhookSettings() {
+    return createWebhookSettings;
+  }
+
+  /** Returns the object with the settings used for calls to updateWebhook. */
+  public UnaryCallSettings<UpdateWebhookRequest, Webhook> updateWebhookSettings() {
+    return updateWebhookSettings;
+  }
+
+  /** Returns the object with the settings used for calls to deleteWebhook. */
+  public UnaryCallSettings<DeleteWebhookRequest, Empty> deleteWebhookSettings() {
+    return deleteWebhookSettings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public WebhooksStub createStub() throws IOException {
+    if (getTransportChannelProvider()
+        .getTransportName()
+        .equals(GrpcTransportChannel.getGrpcTransportName())) {
+      return GrpcWebhooksStub.create(this);
+    } else {
+      throw new UnsupportedOperationException(
+          "Transport not supported: " + getTransportChannelProvider().getTransportName());
+    }
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return InstantiatingExecutorProvider.newBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return "dialogflow.googleapis.com:443";
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return DEFAULT_SERVICE_SCOPES;
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return GoogleCredentialsProvider.newBuilder().setScopesToApply(DEFAULT_SERVICE_SCOPES);
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return InstantiatingGrpcChannelProvider.newBuilder()
+        .setMaxInboundMessageSize(Integer.MAX_VALUE);
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return defaultGrpcTransportProviderBuilder().build();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return ApiClientHeaderProvider.newBuilder()
+        .setGeneratedLibToken("gapic", GaxProperties.getLibraryVersion(WebhooksStubSettings.class))
+        .setTransportToken(
+            GaxGrpcProperties.getGrpcTokenName(), GaxGrpcProperties.getGrpcVersion());
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected WebhooksStubSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+
+    listWebhooksSettings = settingsBuilder.listWebhooksSettings().build();
+    getWebhookSettings = settingsBuilder.getWebhookSettings().build();
+    createWebhookSettings = settingsBuilder.createWebhookSettings().build();
+    updateWebhookSettings = settingsBuilder.updateWebhookSettings().build();
+    deleteWebhookSettings = settingsBuilder.deleteWebhookSettings().build();
+  }
+
+  private static final PagedListDescriptor<ListWebhooksRequest, ListWebhooksResponse, Webhook>
+      LIST_WEBHOOKS_PAGE_STR_DESC =
+          new PagedListDescriptor<ListWebhooksRequest, ListWebhooksResponse, Webhook>() {
+            @Override
+            public String emptyToken() {
+              return "";
+            }
+
+            @Override
+            public ListWebhooksRequest injectToken(ListWebhooksRequest payload, String token) {
+              return ListWebhooksRequest.newBuilder(payload).setPageToken(token).build();
+            }
+
+            @Override
+            public ListWebhooksRequest injectPageSize(ListWebhooksRequest payload, int pageSize) {
+              return ListWebhooksRequest.newBuilder(payload).setPageSize(pageSize).build();
+            }
+
+            @Override
+            public Integer extractPageSize(ListWebhooksRequest payload) {
+              return payload.getPageSize();
+            }
+
+            @Override
+            public String extractNextToken(ListWebhooksResponse payload) {
+              return payload.getNextPageToken();
+            }
+
+            @Override
+            public Iterable<Webhook> extractResources(ListWebhooksResponse payload) {
+              return payload.getWebhooksList() != null
+                  ? payload.getWebhooksList()
+                  : ImmutableList.<Webhook>of();
+            }
+          };
+
+  private static final PagedListResponseFactory<
+          ListWebhooksRequest, ListWebhooksResponse, ListWebhooksPagedResponse>
+      LIST_WEBHOOKS_PAGE_STR_FACT =
+          new PagedListResponseFactory<
+              ListWebhooksRequest, ListWebhooksResponse, ListWebhooksPagedResponse>() {
+            @Override
+            public ApiFuture<ListWebhooksPagedResponse> getFuturePagedResponse(
+                UnaryCallable<ListWebhooksRequest, ListWebhooksResponse> callable,
+                ListWebhooksRequest request,
+                ApiCallContext context,
+                ApiFuture<ListWebhooksResponse> futureResponse) {
+              PageContext<ListWebhooksRequest, ListWebhooksResponse, Webhook> pageContext =
+                  PageContext.create(callable, LIST_WEBHOOKS_PAGE_STR_DESC, request, context);
+              return ListWebhooksPagedResponse.createAsync(pageContext, futureResponse);
+            }
+          };
+
+  /** Builder for WebhooksStubSettings. */
+  public static class Builder extends StubSettings.Builder<WebhooksStubSettings, Builder> {
+    private final ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders;
+
+    private final PagedCallSettings.Builder<
+            ListWebhooksRequest, ListWebhooksResponse, ListWebhooksPagedResponse>
+        listWebhooksSettings;
+    private final UnaryCallSettings.Builder<GetWebhookRequest, Webhook> getWebhookSettings;
+    private final UnaryCallSettings.Builder<CreateWebhookRequest, Webhook> createWebhookSettings;
+    private final UnaryCallSettings.Builder<UpdateWebhookRequest, Webhook> updateWebhookSettings;
+    private final UnaryCallSettings.Builder<DeleteWebhookRequest, Empty> deleteWebhookSettings;
+
+    private static final ImmutableMap<String, ImmutableSet<StatusCode.Code>>
+        RETRYABLE_CODE_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, ImmutableSet<StatusCode.Code>> definitions =
+          ImmutableMap.builder();
+      definitions.put(
+          "retry_policy_1_codes",
+          ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList(StatusCode.Code.UNAVAILABLE)));
+      definitions.put("no_retry_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      definitions.put(
+          "retry_policy_2_codes",
+          ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList(StatusCode.Code.UNAVAILABLE)));
+      definitions.put(
+          "no_retry_1_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      RETRYABLE_CODE_DEFINITIONS = definitions.build();
+    }
+
+    private static final ImmutableMap<String, RetrySettings> RETRY_PARAM_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, RetrySettings> definitions = ImmutableMap.builder();
+      RetrySettings settings = null;
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(60000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(60000L))
+              .setTotalTimeout(Duration.ofMillis(60000L))
+              .build();
+      definitions.put("retry_policy_1_params", settings);
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(220000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(220000L))
+              .setTotalTimeout(Duration.ofMillis(220000L))
+              .build();
+      definitions.put("retry_policy_2_params", settings);
+      settings = RetrySettings.newBuilder().setRpcTimeoutMultiplier(1.0).build();
+      definitions.put("no_retry_params", settings);
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRpcTimeout(Duration.ofMillis(220000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(220000L))
+              .setTotalTimeout(Duration.ofMillis(220000L))
+              .build();
+      definitions.put("no_retry_1_params", settings);
+      RETRY_PARAM_DEFINITIONS = definitions.build();
+    }
+
+    protected Builder() {
+      this((ClientContext) null);
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(clientContext);
+
+      listWebhooksSettings = PagedCallSettings.newBuilder(LIST_WEBHOOKS_PAGE_STR_FACT);
+
+      getWebhookSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      createWebhookSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      updateWebhookSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      deleteWebhookSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              listWebhooksSettings,
+              getWebhookSettings,
+              createWebhookSettings,
+              updateWebhookSettings,
+              deleteWebhookSettings);
+
+      initDefaults(this);
+    }
+
+    private static Builder createDefault() {
+      Builder builder = new Builder((ClientContext) null);
+      builder.setTransportChannelProvider(defaultTransportChannelProvider());
+      builder.setCredentialsProvider(defaultCredentialsProviderBuilder().build());
+      builder.setInternalHeaderProvider(defaultApiClientHeaderProviderBuilder().build());
+      builder.setEndpoint(getDefaultEndpoint());
+      return initDefaults(builder);
+    }
+
+    private static Builder initDefaults(Builder builder) {
+
+      builder
+          .listWebhooksSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .getWebhookSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .createWebhookSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .updateWebhookSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      builder
+          .deleteWebhookSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_1_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_1_params"));
+
+      return builder;
+    }
+
+    protected Builder(WebhooksStubSettings settings) {
+      super(settings);
+
+      listWebhooksSettings = settings.listWebhooksSettings.toBuilder();
+      getWebhookSettings = settings.getWebhookSettings.toBuilder();
+      createWebhookSettings = settings.createWebhookSettings.toBuilder();
+      updateWebhookSettings = settings.updateWebhookSettings.toBuilder();
+      deleteWebhookSettings = settings.deleteWebhookSettings.toBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              listWebhooksSettings,
+              getWebhookSettings,
+              createWebhookSettings,
+              updateWebhookSettings,
+              deleteWebhookSettings);
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(unaryMethodSettingsBuilders, settingsUpdater);
+      return this;
+    }
+
+    public ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders() {
+      return unaryMethodSettingsBuilders;
+    }
+
+    /** Returns the builder for the settings used for calls to listWebhooks. */
+    public PagedCallSettings.Builder<
+            ListWebhooksRequest, ListWebhooksResponse, ListWebhooksPagedResponse>
+        listWebhooksSettings() {
+      return listWebhooksSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to getWebhook. */
+    public UnaryCallSettings.Builder<GetWebhookRequest, Webhook> getWebhookSettings() {
+      return getWebhookSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to createWebhook. */
+    public UnaryCallSettings.Builder<CreateWebhookRequest, Webhook> createWebhookSettings() {
+      return createWebhookSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to updateWebhook. */
+    public UnaryCallSettings.Builder<UpdateWebhookRequest, Webhook> updateWebhookSettings() {
+      return updateWebhookSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to deleteWebhook. */
+    public UnaryCallSettings.Builder<DeleteWebhookRequest, Empty> deleteWebhookSettings() {
+      return deleteWebhookSettings;
+    }
+
+    @Override
+    public WebhooksStubSettings build() throws IOException {
+      return new WebhooksStubSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/AgentsClientTest.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/AgentsClientTest.java
new file mode 100644
index 000000000..fca8adb89
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/AgentsClientTest.java
@@ -0,0 +1,481 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.AgentsClient.ListAgentsPagedResponse;
+
+import com.google.api.gax.core.NoCredentialsProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.testing.LocalChannelProvider;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.api.gax.grpc.testing.MockServiceHelper;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.InvalidArgumentException;
+import com.google.api.gax.rpc.StatusCode;
+import com.google.common.collect.Lists;
+import com.google.longrunning.Operation;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Any;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import io.grpc.Status;
+import io.grpc.StatusRuntimeException;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+import java.util.UUID;
+import java.util.concurrent.ExecutionException;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+@javax.annotation.Generated("by GAPIC")
+public class AgentsClientTest {
+  private static MockPages mockPages;
+  private static MockFlows mockFlows;
+  private static MockAgents mockAgents;
+  private static MockEntityTypes mockEntityTypes;
+  private static MockEnvironments mockEnvironments;
+  private static MockIntents mockIntents;
+  private static MockSessionEntityTypes mockSessionEntityTypes;
+  private static MockSessions mockSessions;
+  private static MockTransitionRouteGroups mockTransitionRouteGroups;
+  private static MockVersions mockVersions;
+  private static MockWebhooks mockWebhooks;
+  private static MockServiceHelper serviceHelper;
+  private AgentsClient client;
+  private LocalChannelProvider channelProvider;
+
+  @BeforeClass
+  public static void startStaticServer() {
+    mockPages = new MockPages();
+    mockFlows = new MockFlows();
+    mockAgents = new MockAgents();
+    mockEntityTypes = new MockEntityTypes();
+    mockEnvironments = new MockEnvironments();
+    mockIntents = new MockIntents();
+    mockSessionEntityTypes = new MockSessionEntityTypes();
+    mockSessions = new MockSessions();
+    mockTransitionRouteGroups = new MockTransitionRouteGroups();
+    mockVersions = new MockVersions();
+    mockWebhooks = new MockWebhooks();
+    serviceHelper =
+        new MockServiceHelper(
+            UUID.randomUUID().toString(),
+            Arrays.<MockGrpcService>asList(
+                mockPages,
+                mockFlows,
+                mockAgents,
+                mockEntityTypes,
+                mockEnvironments,
+                mockIntents,
+                mockSessionEntityTypes,
+                mockSessions,
+                mockTransitionRouteGroups,
+                mockVersions,
+                mockWebhooks));
+    serviceHelper.start();
+  }
+
+  @AfterClass
+  public static void stopServer() {
+    serviceHelper.stop();
+  }
+
+  @Before
+  public void setUp() throws IOException {
+    serviceHelper.reset();
+    channelProvider = serviceHelper.createChannelProvider();
+    AgentsSettings settings =
+        AgentsSettings.newBuilder()
+            .setTransportChannelProvider(channelProvider)
+            .setCredentialsProvider(NoCredentialsProvider.create())
+            .build();
+    client = AgentsClient.create(settings);
+  }
+
+  @After
+  public void tearDown() throws Exception {
+    client.close();
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void listAgentsTest() {
+    String nextPageToken = "";
+    Agent agentsElement = Agent.newBuilder().build();
+    List<Agent> agents = Arrays.asList(agentsElement);
+    ListAgentsResponse expectedResponse =
+        ListAgentsResponse.newBuilder()
+            .setNextPageToken(nextPageToken)
+            .addAllAgents(agents)
+            .build();
+    mockAgents.addResponse(expectedResponse);
+
+    LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+
+    ListAgentsPagedResponse pagedListResponse = client.listAgents(parent);
+
+    List<Agent> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getAgentsList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockAgents.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListAgentsRequest actualRequest = (ListAgentsRequest) actualRequests.get(0);
+
+    Assert.assertEquals(parent, LocationName.parse(actualRequest.getParent()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void listAgentsExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockAgents.addException(exception);
+
+    try {
+      LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+
+      client.listAgents(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void getAgentTest() {
+    AgentName name2 = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+    String displayName = "displayName1615086568";
+    String defaultLanguageCode = "defaultLanguageCode856575222";
+    String timeZone = "timeZone36848094";
+    String description = "description-1724546052";
+    String avatarUri = "avatarUri-402824826";
+    FlowName startFlow = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+    boolean enableStackdriverLogging = true;
+    boolean enableSpellCorrection = false;
+    Agent expectedResponse =
+        Agent.newBuilder()
+            .setName(name2.toString())
+            .setDisplayName(displayName)
+            .setDefaultLanguageCode(defaultLanguageCode)
+            .setTimeZone(timeZone)
+            .setDescription(description)
+            .setAvatarUri(avatarUri)
+            .setStartFlow(startFlow.toString())
+            .setEnableStackdriverLogging(enableStackdriverLogging)
+            .setEnableSpellCorrection(enableSpellCorrection)
+            .build();
+    mockAgents.addResponse(expectedResponse);
+
+    AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+
+    Agent actualResponse = client.getAgent(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockAgents.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetAgentRequest actualRequest = (GetAgentRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, AgentName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void getAgentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockAgents.addException(exception);
+
+    try {
+      AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+
+      client.getAgent(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void createAgentTest() {
+    AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+    String displayName = "displayName1615086568";
+    String defaultLanguageCode = "defaultLanguageCode856575222";
+    String timeZone = "timeZone36848094";
+    String description = "description-1724546052";
+    String avatarUri = "avatarUri-402824826";
+    FlowName startFlow = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+    boolean enableStackdriverLogging = true;
+    boolean enableSpellCorrection = false;
+    Agent expectedResponse =
+        Agent.newBuilder()
+            .setName(name.toString())
+            .setDisplayName(displayName)
+            .setDefaultLanguageCode(defaultLanguageCode)
+            .setTimeZone(timeZone)
+            .setDescription(description)
+            .setAvatarUri(avatarUri)
+            .setStartFlow(startFlow.toString())
+            .setEnableStackdriverLogging(enableStackdriverLogging)
+            .setEnableSpellCorrection(enableSpellCorrection)
+            .build();
+    mockAgents.addResponse(expectedResponse);
+
+    LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+    Agent agent = Agent.newBuilder().build();
+
+    Agent actualResponse = client.createAgent(parent, agent);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockAgents.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    CreateAgentRequest actualRequest = (CreateAgentRequest) actualRequests.get(0);
+
+    Assert.assertEquals(parent, LocationName.parse(actualRequest.getParent()));
+    Assert.assertEquals(agent, actualRequest.getAgent());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void createAgentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockAgents.addException(exception);
+
+    try {
+      LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+      Agent agent = Agent.newBuilder().build();
+
+      client.createAgent(parent, agent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void updateAgentTest() {
+    AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+    String displayName = "displayName1615086568";
+    String defaultLanguageCode = "defaultLanguageCode856575222";
+    String timeZone = "timeZone36848094";
+    String description = "description-1724546052";
+    String avatarUri = "avatarUri-402824826";
+    FlowName startFlow = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+    boolean enableStackdriverLogging = true;
+    boolean enableSpellCorrection = false;
+    Agent expectedResponse =
+        Agent.newBuilder()
+            .setName(name.toString())
+            .setDisplayName(displayName)
+            .setDefaultLanguageCode(defaultLanguageCode)
+            .setTimeZone(timeZone)
+            .setDescription(description)
+            .setAvatarUri(avatarUri)
+            .setStartFlow(startFlow.toString())
+            .setEnableStackdriverLogging(enableStackdriverLogging)
+            .setEnableSpellCorrection(enableSpellCorrection)
+            .build();
+    mockAgents.addResponse(expectedResponse);
+
+    Agent agent = Agent.newBuilder().build();
+    FieldMask updateMask = FieldMask.newBuilder().build();
+
+    Agent actualResponse = client.updateAgent(agent, updateMask);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockAgents.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    UpdateAgentRequest actualRequest = (UpdateAgentRequest) actualRequests.get(0);
+
+    Assert.assertEquals(agent, actualRequest.getAgent());
+    Assert.assertEquals(updateMask, actualRequest.getUpdateMask());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void updateAgentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockAgents.addException(exception);
+
+    try {
+      Agent agent = Agent.newBuilder().build();
+      FieldMask updateMask = FieldMask.newBuilder().build();
+
+      client.updateAgent(agent, updateMask);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void deleteAgentTest() {
+    Empty expectedResponse = Empty.newBuilder().build();
+    mockAgents.addResponse(expectedResponse);
+
+    AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+
+    client.deleteAgent(name);
+
+    List<AbstractMessage> actualRequests = mockAgents.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    DeleteAgentRequest actualRequest = (DeleteAgentRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, AgentName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void deleteAgentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockAgents.addException(exception);
+
+    try {
+      AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+
+      client.deleteAgent(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void exportAgentTest() throws Exception {
+    String agentUri = "agentUri-1700713166";
+    ExportAgentResponse expectedResponse =
+        ExportAgentResponse.newBuilder().setAgentUri(agentUri).build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("exportAgentTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockAgents.addResponse(resultOperation);
+
+    AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+    ExportAgentRequest request = ExportAgentRequest.newBuilder().setName(name.toString()).build();
+
+    ExportAgentResponse actualResponse = client.exportAgentAsync(request).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockAgents.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ExportAgentRequest actualRequest = (ExportAgentRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, AgentName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void exportAgentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockAgents.addException(exception);
+
+    try {
+      AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+      ExportAgentRequest request = ExportAgentRequest.newBuilder().setName(name.toString()).build();
+
+      client.exportAgentAsync(request).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = (InvalidArgumentException) e.getCause();
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void restoreAgentTest() throws Exception {
+    Empty expectedResponse = Empty.newBuilder().build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("restoreAgentTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockAgents.addResponse(resultOperation);
+
+    AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+    RestoreAgentRequest request = RestoreAgentRequest.newBuilder().setName(name.toString()).build();
+
+    Empty actualResponse = client.restoreAgentAsync(request).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockAgents.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    RestoreAgentRequest actualRequest = (RestoreAgentRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, AgentName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void restoreAgentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockAgents.addException(exception);
+
+    try {
+      AgentName name = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+      RestoreAgentRequest request =
+          RestoreAgentRequest.newBuilder().setName(name.toString()).build();
+
+      client.restoreAgentAsync(request).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = (InvalidArgumentException) e.getCause();
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/EntityTypesClientTest.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/EntityTypesClientTest.java
new file mode 100644
index 000000000..dc208f801
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/EntityTypesClientTest.java
@@ -0,0 +1,344 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.EntityTypesClient.ListEntityTypesPagedResponse;
+
+import com.google.api.gax.core.NoCredentialsProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.testing.LocalChannelProvider;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.api.gax.grpc.testing.MockServiceHelper;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.InvalidArgumentException;
+import com.google.common.collect.Lists;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import io.grpc.Status;
+import io.grpc.StatusRuntimeException;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+import java.util.UUID;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+@javax.annotation.Generated("by GAPIC")
+public class EntityTypesClientTest {
+  private static MockPages mockPages;
+  private static MockFlows mockFlows;
+  private static MockAgents mockAgents;
+  private static MockEntityTypes mockEntityTypes;
+  private static MockEnvironments mockEnvironments;
+  private static MockIntents mockIntents;
+  private static MockSessionEntityTypes mockSessionEntityTypes;
+  private static MockSessions mockSessions;
+  private static MockTransitionRouteGroups mockTransitionRouteGroups;
+  private static MockVersions mockVersions;
+  private static MockWebhooks mockWebhooks;
+  private static MockServiceHelper serviceHelper;
+  private EntityTypesClient client;
+  private LocalChannelProvider channelProvider;
+
+  @BeforeClass
+  public static void startStaticServer() {
+    mockPages = new MockPages();
+    mockFlows = new MockFlows();
+    mockAgents = new MockAgents();
+    mockEntityTypes = new MockEntityTypes();
+    mockEnvironments = new MockEnvironments();
+    mockIntents = new MockIntents();
+    mockSessionEntityTypes = new MockSessionEntityTypes();
+    mockSessions = new MockSessions();
+    mockTransitionRouteGroups = new MockTransitionRouteGroups();
+    mockVersions = new MockVersions();
+    mockWebhooks = new MockWebhooks();
+    serviceHelper =
+        new MockServiceHelper(
+            UUID.randomUUID().toString(),
+            Arrays.<MockGrpcService>asList(
+                mockPages,
+                mockFlows,
+                mockAgents,
+                mockEntityTypes,
+                mockEnvironments,
+                mockIntents,
+                mockSessionEntityTypes,
+                mockSessions,
+                mockTransitionRouteGroups,
+                mockVersions,
+                mockWebhooks));
+    serviceHelper.start();
+  }
+
+  @AfterClass
+  public static void stopServer() {
+    serviceHelper.stop();
+  }
+
+  @Before
+  public void setUp() throws IOException {
+    serviceHelper.reset();
+    channelProvider = serviceHelper.createChannelProvider();
+    EntityTypesSettings settings =
+        EntityTypesSettings.newBuilder()
+            .setTransportChannelProvider(channelProvider)
+            .setCredentialsProvider(NoCredentialsProvider.create())
+            .build();
+    client = EntityTypesClient.create(settings);
+  }
+
+  @After
+  public void tearDown() throws Exception {
+    client.close();
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void listEntityTypesTest() {
+    String nextPageToken = "";
+    EntityType entityTypesElement = EntityType.newBuilder().build();
+    List<EntityType> entityTypes = Arrays.asList(entityTypesElement);
+    ListEntityTypesResponse expectedResponse =
+        ListEntityTypesResponse.newBuilder()
+            .setNextPageToken(nextPageToken)
+            .addAllEntityTypes(entityTypes)
+            .build();
+    mockEntityTypes.addResponse(expectedResponse);
+
+    AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+
+    ListEntityTypesPagedResponse pagedListResponse = client.listEntityTypes(parent);
+
+    List<EntityType> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getEntityTypesList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockEntityTypes.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListEntityTypesRequest actualRequest = (ListEntityTypesRequest) actualRequests.get(0);
+
+    Assert.assertEquals(parent, AgentName.parse(actualRequest.getParent()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void listEntityTypesExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockEntityTypes.addException(exception);
+
+    try {
+      AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+
+      client.listEntityTypes(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void getEntityTypeTest() {
+    EntityTypeName name2 = EntityTypeName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENTITY_TYPE]");
+    String displayName = "displayName1615086568";
+    boolean enableFuzzyExtraction = true;
+    EntityType expectedResponse =
+        EntityType.newBuilder()
+            .setName(name2.toString())
+            .setDisplayName(displayName)
+            .setEnableFuzzyExtraction(enableFuzzyExtraction)
+            .build();
+    mockEntityTypes.addResponse(expectedResponse);
+
+    EntityTypeName name = EntityTypeName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENTITY_TYPE]");
+
+    EntityType actualResponse = client.getEntityType(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockEntityTypes.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetEntityTypeRequest actualRequest = (GetEntityTypeRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, EntityTypeName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void getEntityTypeExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockEntityTypes.addException(exception);
+
+    try {
+      EntityTypeName name =
+          EntityTypeName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENTITY_TYPE]");
+
+      client.getEntityType(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void createEntityTypeTest() {
+    EntityTypeName name = EntityTypeName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENTITY_TYPE]");
+    String displayName = "displayName1615086568";
+    boolean enableFuzzyExtraction = true;
+    EntityType expectedResponse =
+        EntityType.newBuilder()
+            .setName(name.toString())
+            .setDisplayName(displayName)
+            .setEnableFuzzyExtraction(enableFuzzyExtraction)
+            .build();
+    mockEntityTypes.addResponse(expectedResponse);
+
+    AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+    EntityType entityType = EntityType.newBuilder().build();
+
+    EntityType actualResponse = client.createEntityType(parent, entityType);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockEntityTypes.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    CreateEntityTypeRequest actualRequest = (CreateEntityTypeRequest) actualRequests.get(0);
+
+    Assert.assertEquals(parent, AgentName.parse(actualRequest.getParent()));
+    Assert.assertEquals(entityType, actualRequest.getEntityType());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void createEntityTypeExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockEntityTypes.addException(exception);
+
+    try {
+      AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+      EntityType entityType = EntityType.newBuilder().build();
+
+      client.createEntityType(parent, entityType);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void updateEntityTypeTest() {
+    EntityTypeName name = EntityTypeName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENTITY_TYPE]");
+    String displayName = "displayName1615086568";
+    boolean enableFuzzyExtraction = true;
+    EntityType expectedResponse =
+        EntityType.newBuilder()
+            .setName(name.toString())
+            .setDisplayName(displayName)
+            .setEnableFuzzyExtraction(enableFuzzyExtraction)
+            .build();
+    mockEntityTypes.addResponse(expectedResponse);
+
+    EntityType entityType = EntityType.newBuilder().build();
+    FieldMask updateMask = FieldMask.newBuilder().build();
+
+    EntityType actualResponse = client.updateEntityType(entityType, updateMask);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockEntityTypes.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    UpdateEntityTypeRequest actualRequest = (UpdateEntityTypeRequest) actualRequests.get(0);
+
+    Assert.assertEquals(entityType, actualRequest.getEntityType());
+    Assert.assertEquals(updateMask, actualRequest.getUpdateMask());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void updateEntityTypeExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockEntityTypes.addException(exception);
+
+    try {
+      EntityType entityType = EntityType.newBuilder().build();
+      FieldMask updateMask = FieldMask.newBuilder().build();
+
+      client.updateEntityType(entityType, updateMask);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void deleteEntityTypeTest() {
+    Empty expectedResponse = Empty.newBuilder().build();
+    mockEntityTypes.addResponse(expectedResponse);
+
+    EntityTypeName name = EntityTypeName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENTITY_TYPE]");
+
+    client.deleteEntityType(name);
+
+    List<AbstractMessage> actualRequests = mockEntityTypes.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    DeleteEntityTypeRequest actualRequest = (DeleteEntityTypeRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, EntityTypeName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void deleteEntityTypeExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockEntityTypes.addException(exception);
+
+    try {
+      EntityTypeName name =
+          EntityTypeName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENTITY_TYPE]");
+
+      client.deleteEntityType(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentsClientTest.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentsClientTest.java
new file mode 100644
index 000000000..ff913cbb0
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentsClientTest.java
@@ -0,0 +1,421 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.EnvironmentsClient.ListEnvironmentsPagedResponse;
+import static com.google.cloud.dialogflow.cx.v3beta1.EnvironmentsClient.LookupEnvironmentHistoryPagedResponse;
+
+import com.google.api.gax.core.NoCredentialsProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.testing.LocalChannelProvider;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.api.gax.grpc.testing.MockServiceHelper;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.InvalidArgumentException;
+import com.google.api.gax.rpc.StatusCode;
+import com.google.common.collect.Lists;
+import com.google.longrunning.Operation;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Any;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import io.grpc.Status;
+import io.grpc.StatusRuntimeException;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+import java.util.UUID;
+import java.util.concurrent.ExecutionException;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+@javax.annotation.Generated("by GAPIC")
+public class EnvironmentsClientTest {
+  private static MockPages mockPages;
+  private static MockFlows mockFlows;
+  private static MockAgents mockAgents;
+  private static MockEntityTypes mockEntityTypes;
+  private static MockEnvironments mockEnvironments;
+  private static MockIntents mockIntents;
+  private static MockSessionEntityTypes mockSessionEntityTypes;
+  private static MockSessions mockSessions;
+  private static MockTransitionRouteGroups mockTransitionRouteGroups;
+  private static MockVersions mockVersions;
+  private static MockWebhooks mockWebhooks;
+  private static MockServiceHelper serviceHelper;
+  private EnvironmentsClient client;
+  private LocalChannelProvider channelProvider;
+
+  @BeforeClass
+  public static void startStaticServer() {
+    mockPages = new MockPages();
+    mockFlows = new MockFlows();
+    mockAgents = new MockAgents();
+    mockEntityTypes = new MockEntityTypes();
+    mockEnvironments = new MockEnvironments();
+    mockIntents = new MockIntents();
+    mockSessionEntityTypes = new MockSessionEntityTypes();
+    mockSessions = new MockSessions();
+    mockTransitionRouteGroups = new MockTransitionRouteGroups();
+    mockVersions = new MockVersions();
+    mockWebhooks = new MockWebhooks();
+    serviceHelper =
+        new MockServiceHelper(
+            UUID.randomUUID().toString(),
+            Arrays.<MockGrpcService>asList(
+                mockPages,
+                mockFlows,
+                mockAgents,
+                mockEntityTypes,
+                mockEnvironments,
+                mockIntents,
+                mockSessionEntityTypes,
+                mockSessions,
+                mockTransitionRouteGroups,
+                mockVersions,
+                mockWebhooks));
+    serviceHelper.start();
+  }
+
+  @AfterClass
+  public static void stopServer() {
+    serviceHelper.stop();
+  }
+
+  @Before
+  public void setUp() throws IOException {
+    serviceHelper.reset();
+    channelProvider = serviceHelper.createChannelProvider();
+    EnvironmentsSettings settings =
+        EnvironmentsSettings.newBuilder()
+            .setTransportChannelProvider(channelProvider)
+            .setCredentialsProvider(NoCredentialsProvider.create())
+            .build();
+    client = EnvironmentsClient.create(settings);
+  }
+
+  @After
+  public void tearDown() throws Exception {
+    client.close();
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void listEnvironmentsTest() {
+    String nextPageToken = "";
+    Environment environmentsElement = Environment.newBuilder().build();
+    List<Environment> environments = Arrays.asList(environmentsElement);
+    ListEnvironmentsResponse expectedResponse =
+        ListEnvironmentsResponse.newBuilder()
+            .setNextPageToken(nextPageToken)
+            .addAllEnvironments(environments)
+            .build();
+    mockEnvironments.addResponse(expectedResponse);
+
+    AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+
+    ListEnvironmentsPagedResponse pagedListResponse = client.listEnvironments(parent);
+
+    List<Environment> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getEnvironmentsList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockEnvironments.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListEnvironmentsRequest actualRequest = (ListEnvironmentsRequest) actualRequests.get(0);
+
+    Assert.assertEquals(parent, AgentName.parse(actualRequest.getParent()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void listEnvironmentsExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockEnvironments.addException(exception);
+
+    try {
+      AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+
+      client.listEnvironments(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void getEnvironmentTest() {
+    EnvironmentName name2 =
+        EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+    String displayName = "displayName1615086568";
+    String description = "description-1724546052";
+    Environment expectedResponse =
+        Environment.newBuilder()
+            .setName(name2.toString())
+            .setDisplayName(displayName)
+            .setDescription(description)
+            .build();
+    mockEnvironments.addResponse(expectedResponse);
+
+    EnvironmentName name =
+        EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+
+    Environment actualResponse = client.getEnvironment(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockEnvironments.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetEnvironmentRequest actualRequest = (GetEnvironmentRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, EnvironmentName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void getEnvironmentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockEnvironments.addException(exception);
+
+    try {
+      EnvironmentName name =
+          EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+
+      client.getEnvironment(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void createEnvironmentTest() throws Exception {
+    EnvironmentName name =
+        EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+    String displayName = "displayName1615086568";
+    String description = "description-1724546052";
+    Environment expectedResponse =
+        Environment.newBuilder()
+            .setName(name.toString())
+            .setDisplayName(displayName)
+            .setDescription(description)
+            .build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("createEnvironmentTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockEnvironments.addResponse(resultOperation);
+
+    AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+    Environment environment = Environment.newBuilder().build();
+
+    Environment actualResponse = client.createEnvironmentAsync(parent, environment).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockEnvironments.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    CreateEnvironmentRequest actualRequest = (CreateEnvironmentRequest) actualRequests.get(0);
+
+    Assert.assertEquals(parent, AgentName.parse(actualRequest.getParent()));
+    Assert.assertEquals(environment, actualRequest.getEnvironment());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void createEnvironmentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockEnvironments.addException(exception);
+
+    try {
+      AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+      Environment environment = Environment.newBuilder().build();
+
+      client.createEnvironmentAsync(parent, environment).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = (InvalidArgumentException) e.getCause();
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void updateEnvironmentTest() throws Exception {
+    EnvironmentName name =
+        EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+    String displayName = "displayName1615086568";
+    String description = "description-1724546052";
+    Environment expectedResponse =
+        Environment.newBuilder()
+            .setName(name.toString())
+            .setDisplayName(displayName)
+            .setDescription(description)
+            .build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("updateEnvironmentTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockEnvironments.addResponse(resultOperation);
+
+    Environment environment = Environment.newBuilder().build();
+    FieldMask updateMask = FieldMask.newBuilder().build();
+
+    Environment actualResponse = client.updateEnvironmentAsync(environment, updateMask).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockEnvironments.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    UpdateEnvironmentRequest actualRequest = (UpdateEnvironmentRequest) actualRequests.get(0);
+
+    Assert.assertEquals(environment, actualRequest.getEnvironment());
+    Assert.assertEquals(updateMask, actualRequest.getUpdateMask());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void updateEnvironmentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockEnvironments.addException(exception);
+
+    try {
+      Environment environment = Environment.newBuilder().build();
+      FieldMask updateMask = FieldMask.newBuilder().build();
+
+      client.updateEnvironmentAsync(environment, updateMask).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = (InvalidArgumentException) e.getCause();
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void deleteEnvironmentTest() {
+    Empty expectedResponse = Empty.newBuilder().build();
+    mockEnvironments.addResponse(expectedResponse);
+
+    EnvironmentName name =
+        EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+
+    client.deleteEnvironment(name);
+
+    List<AbstractMessage> actualRequests = mockEnvironments.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    DeleteEnvironmentRequest actualRequest = (DeleteEnvironmentRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, EnvironmentName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void deleteEnvironmentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockEnvironments.addException(exception);
+
+    try {
+      EnvironmentName name =
+          EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+
+      client.deleteEnvironment(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void lookupEnvironmentHistoryTest() {
+    String nextPageToken = "";
+    Environment environmentsElement = Environment.newBuilder().build();
+    List<Environment> environments = Arrays.asList(environmentsElement);
+    LookupEnvironmentHistoryResponse expectedResponse =
+        LookupEnvironmentHistoryResponse.newBuilder()
+            .setNextPageToken(nextPageToken)
+            .addAllEnvironments(environments)
+            .build();
+    mockEnvironments.addResponse(expectedResponse);
+
+    EnvironmentName name =
+        EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+
+    LookupEnvironmentHistoryPagedResponse pagedListResponse = client.lookupEnvironmentHistory(name);
+
+    List<Environment> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getEnvironmentsList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockEnvironments.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    LookupEnvironmentHistoryRequest actualRequest =
+        (LookupEnvironmentHistoryRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, EnvironmentName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void lookupEnvironmentHistoryExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockEnvironments.addException(exception);
+
+    try {
+      EnvironmentName name =
+          EnvironmentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[ENVIRONMENT]");
+
+      client.lookupEnvironmentHistory(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/FlowsClientTest.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/FlowsClientTest.java
new file mode 100644
index 000000000..a0a00ce77
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/FlowsClientTest.java
@@ -0,0 +1,389 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.FlowsClient.ListFlowsPagedResponse;
+
+import com.google.api.gax.core.NoCredentialsProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.testing.LocalChannelProvider;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.api.gax.grpc.testing.MockServiceHelper;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.InvalidArgumentException;
+import com.google.api.gax.rpc.StatusCode;
+import com.google.common.collect.Lists;
+import com.google.longrunning.Operation;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Any;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import io.grpc.Status;
+import io.grpc.StatusRuntimeException;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+import java.util.UUID;
+import java.util.concurrent.ExecutionException;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+@javax.annotation.Generated("by GAPIC")
+public class FlowsClientTest {
+  private static MockPages mockPages;
+  private static MockFlows mockFlows;
+  private static MockAgents mockAgents;
+  private static MockEntityTypes mockEntityTypes;
+  private static MockEnvironments mockEnvironments;
+  private static MockIntents mockIntents;
+  private static MockSessionEntityTypes mockSessionEntityTypes;
+  private static MockSessions mockSessions;
+  private static MockTransitionRouteGroups mockTransitionRouteGroups;
+  private static MockVersions mockVersions;
+  private static MockWebhooks mockWebhooks;
+  private static MockServiceHelper serviceHelper;
+  private FlowsClient client;
+  private LocalChannelProvider channelProvider;
+
+  @BeforeClass
+  public static void startStaticServer() {
+    mockPages = new MockPages();
+    mockFlows = new MockFlows();
+    mockAgents = new MockAgents();
+    mockEntityTypes = new MockEntityTypes();
+    mockEnvironments = new MockEnvironments();
+    mockIntents = new MockIntents();
+    mockSessionEntityTypes = new MockSessionEntityTypes();
+    mockSessions = new MockSessions();
+    mockTransitionRouteGroups = new MockTransitionRouteGroups();
+    mockVersions = new MockVersions();
+    mockWebhooks = new MockWebhooks();
+    serviceHelper =
+        new MockServiceHelper(
+            UUID.randomUUID().toString(),
+            Arrays.<MockGrpcService>asList(
+                mockPages,
+                mockFlows,
+                mockAgents,
+                mockEntityTypes,
+                mockEnvironments,
+                mockIntents,
+                mockSessionEntityTypes,
+                mockSessions,
+                mockTransitionRouteGroups,
+                mockVersions,
+                mockWebhooks));
+    serviceHelper.start();
+  }
+
+  @AfterClass
+  public static void stopServer() {
+    serviceHelper.stop();
+  }
+
+  @Before
+  public void setUp() throws IOException {
+    serviceHelper.reset();
+    channelProvider = serviceHelper.createChannelProvider();
+    FlowsSettings settings =
+        FlowsSettings.newBuilder()
+            .setTransportChannelProvider(channelProvider)
+            .setCredentialsProvider(NoCredentialsProvider.create())
+            .build();
+    client = FlowsClient.create(settings);
+  }
+
+  @After
+  public void tearDown() throws Exception {
+    client.close();
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void createFlowTest() {
+    FlowName name = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+    String displayName = "displayName1615086568";
+    String description = "description-1724546052";
+    Flow expectedResponse =
+        Flow.newBuilder()
+            .setName(name.toString())
+            .setDisplayName(displayName)
+            .setDescription(description)
+            .build();
+    mockFlows.addResponse(expectedResponse);
+
+    AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+    Flow flow = Flow.newBuilder().build();
+
+    Flow actualResponse = client.createFlow(parent, flow);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockFlows.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    CreateFlowRequest actualRequest = (CreateFlowRequest) actualRequests.get(0);
+
+    Assert.assertEquals(parent, AgentName.parse(actualRequest.getParent()));
+    Assert.assertEquals(flow, actualRequest.getFlow());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void createFlowExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockFlows.addException(exception);
+
+    try {
+      AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+      Flow flow = Flow.newBuilder().build();
+
+      client.createFlow(parent, flow);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void deleteFlowTest() {
+    Empty expectedResponse = Empty.newBuilder().build();
+    mockFlows.addResponse(expectedResponse);
+
+    FlowName name = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+
+    client.deleteFlow(name);
+
+    List<AbstractMessage> actualRequests = mockFlows.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    DeleteFlowRequest actualRequest = (DeleteFlowRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, FlowName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void deleteFlowExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockFlows.addException(exception);
+
+    try {
+      FlowName name = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+
+      client.deleteFlow(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void listFlowsTest() {
+    String nextPageToken = "";
+    Flow flowsElement = Flow.newBuilder().build();
+    List<Flow> flows = Arrays.asList(flowsElement);
+    ListFlowsResponse expectedResponse =
+        ListFlowsResponse.newBuilder().setNextPageToken(nextPageToken).addAllFlows(flows).build();
+    mockFlows.addResponse(expectedResponse);
+
+    AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+
+    ListFlowsPagedResponse pagedListResponse = client.listFlows(parent);
+
+    List<Flow> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getFlowsList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockFlows.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListFlowsRequest actualRequest = (ListFlowsRequest) actualRequests.get(0);
+
+    Assert.assertEquals(parent, AgentName.parse(actualRequest.getParent()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void listFlowsExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockFlows.addException(exception);
+
+    try {
+      AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+
+      client.listFlows(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void getFlowTest() {
+    FlowName name2 = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+    String displayName = "displayName1615086568";
+    String description = "description-1724546052";
+    Flow expectedResponse =
+        Flow.newBuilder()
+            .setName(name2.toString())
+            .setDisplayName(displayName)
+            .setDescription(description)
+            .build();
+    mockFlows.addResponse(expectedResponse);
+
+    FlowName name = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+
+    Flow actualResponse = client.getFlow(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockFlows.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetFlowRequest actualRequest = (GetFlowRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, FlowName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void getFlowExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockFlows.addException(exception);
+
+    try {
+      FlowName name = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+
+      client.getFlow(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void updateFlowTest() {
+    FlowName name = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+    String displayName = "displayName1615086568";
+    String description = "description-1724546052";
+    Flow expectedResponse =
+        Flow.newBuilder()
+            .setName(name.toString())
+            .setDisplayName(displayName)
+            .setDescription(description)
+            .build();
+    mockFlows.addResponse(expectedResponse);
+
+    Flow flow = Flow.newBuilder().build();
+    FieldMask updateMask = FieldMask.newBuilder().build();
+
+    Flow actualResponse = client.updateFlow(flow, updateMask);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockFlows.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    UpdateFlowRequest actualRequest = (UpdateFlowRequest) actualRequests.get(0);
+
+    Assert.assertEquals(flow, actualRequest.getFlow());
+    Assert.assertEquals(updateMask, actualRequest.getUpdateMask());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void updateFlowExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockFlows.addException(exception);
+
+    try {
+      Flow flow = Flow.newBuilder().build();
+      FieldMask updateMask = FieldMask.newBuilder().build();
+
+      client.updateFlow(flow, updateMask);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void trainFlowTest() throws Exception {
+    Empty expectedResponse = Empty.newBuilder().build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("trainFlowTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockFlows.addResponse(resultOperation);
+
+    FlowName name = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+
+    Empty actualResponse = client.trainFlowAsync(name).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockFlows.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    TrainFlowRequest actualRequest = (TrainFlowRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, FlowName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void trainFlowExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockFlows.addException(exception);
+
+    try {
+      FlowName name = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+
+      client.trainFlowAsync(name).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = (InvalidArgumentException) e.getCause();
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/IntentsClientTest.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/IntentsClientTest.java
new file mode 100644
index 000000000..977ea6593
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/IntentsClientTest.java
@@ -0,0 +1,348 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.IntentsClient.ListIntentsPagedResponse;
+
+import com.google.api.gax.core.NoCredentialsProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.testing.LocalChannelProvider;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.api.gax.grpc.testing.MockServiceHelper;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.InvalidArgumentException;
+import com.google.common.collect.Lists;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import io.grpc.Status;
+import io.grpc.StatusRuntimeException;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+import java.util.UUID;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+@javax.annotation.Generated("by GAPIC")
+public class IntentsClientTest {
+  private static MockPages mockPages;
+  private static MockFlows mockFlows;
+  private static MockAgents mockAgents;
+  private static MockEntityTypes mockEntityTypes;
+  private static MockEnvironments mockEnvironments;
+  private static MockIntents mockIntents;
+  private static MockSessionEntityTypes mockSessionEntityTypes;
+  private static MockSessions mockSessions;
+  private static MockTransitionRouteGroups mockTransitionRouteGroups;
+  private static MockVersions mockVersions;
+  private static MockWebhooks mockWebhooks;
+  private static MockServiceHelper serviceHelper;
+  private IntentsClient client;
+  private LocalChannelProvider channelProvider;
+
+  @BeforeClass
+  public static void startStaticServer() {
+    mockPages = new MockPages();
+    mockFlows = new MockFlows();
+    mockAgents = new MockAgents();
+    mockEntityTypes = new MockEntityTypes();
+    mockEnvironments = new MockEnvironments();
+    mockIntents = new MockIntents();
+    mockSessionEntityTypes = new MockSessionEntityTypes();
+    mockSessions = new MockSessions();
+    mockTransitionRouteGroups = new MockTransitionRouteGroups();
+    mockVersions = new MockVersions();
+    mockWebhooks = new MockWebhooks();
+    serviceHelper =
+        new MockServiceHelper(
+            UUID.randomUUID().toString(),
+            Arrays.<MockGrpcService>asList(
+                mockPages,
+                mockFlows,
+                mockAgents,
+                mockEntityTypes,
+                mockEnvironments,
+                mockIntents,
+                mockSessionEntityTypes,
+                mockSessions,
+                mockTransitionRouteGroups,
+                mockVersions,
+                mockWebhooks));
+    serviceHelper.start();
+  }
+
+  @AfterClass
+  public static void stopServer() {
+    serviceHelper.stop();
+  }
+
+  @Before
+  public void setUp() throws IOException {
+    serviceHelper.reset();
+    channelProvider = serviceHelper.createChannelProvider();
+    IntentsSettings settings =
+        IntentsSettings.newBuilder()
+            .setTransportChannelProvider(channelProvider)
+            .setCredentialsProvider(NoCredentialsProvider.create())
+            .build();
+    client = IntentsClient.create(settings);
+  }
+
+  @After
+  public void tearDown() throws Exception {
+    client.close();
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void listIntentsTest() {
+    String nextPageToken = "";
+    Intent intentsElement = Intent.newBuilder().build();
+    List<Intent> intents = Arrays.asList(intentsElement);
+    ListIntentsResponse expectedResponse =
+        ListIntentsResponse.newBuilder()
+            .setNextPageToken(nextPageToken)
+            .addAllIntents(intents)
+            .build();
+    mockIntents.addResponse(expectedResponse);
+
+    AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+
+    ListIntentsPagedResponse pagedListResponse = client.listIntents(parent);
+
+    List<Intent> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getIntentsList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockIntents.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListIntentsRequest actualRequest = (ListIntentsRequest) actualRequests.get(0);
+
+    Assert.assertEquals(parent, AgentName.parse(actualRequest.getParent()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void listIntentsExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockIntents.addException(exception);
+
+    try {
+      AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+
+      client.listIntents(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void getIntentTest() {
+    IntentName name2 = IntentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[INTENT]");
+    String displayName = "displayName1615086568";
+    int priority = 1165461084;
+    boolean isFallback = false;
+    Intent expectedResponse =
+        Intent.newBuilder()
+            .setName(name2.toString())
+            .setDisplayName(displayName)
+            .setPriority(priority)
+            .setIsFallback(isFallback)
+            .build();
+    mockIntents.addResponse(expectedResponse);
+
+    IntentName name = IntentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[INTENT]");
+
+    Intent actualResponse = client.getIntent(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockIntents.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetIntentRequest actualRequest = (GetIntentRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, IntentName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void getIntentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockIntents.addException(exception);
+
+    try {
+      IntentName name = IntentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[INTENT]");
+
+      client.getIntent(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void createIntentTest() {
+    IntentName name = IntentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[INTENT]");
+    String displayName = "displayName1615086568";
+    int priority = 1165461084;
+    boolean isFallback = false;
+    Intent expectedResponse =
+        Intent.newBuilder()
+            .setName(name.toString())
+            .setDisplayName(displayName)
+            .setPriority(priority)
+            .setIsFallback(isFallback)
+            .build();
+    mockIntents.addResponse(expectedResponse);
+
+    AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+    Intent intent = Intent.newBuilder().build();
+
+    Intent actualResponse = client.createIntent(parent, intent);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockIntents.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    CreateIntentRequest actualRequest = (CreateIntentRequest) actualRequests.get(0);
+
+    Assert.assertEquals(parent, AgentName.parse(actualRequest.getParent()));
+    Assert.assertEquals(intent, actualRequest.getIntent());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void createIntentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockIntents.addException(exception);
+
+    try {
+      AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+      Intent intent = Intent.newBuilder().build();
+
+      client.createIntent(parent, intent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void updateIntentTest() {
+    IntentName name = IntentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[INTENT]");
+    String displayName = "displayName1615086568";
+    int priority = 1165461084;
+    boolean isFallback = false;
+    Intent expectedResponse =
+        Intent.newBuilder()
+            .setName(name.toString())
+            .setDisplayName(displayName)
+            .setPriority(priority)
+            .setIsFallback(isFallback)
+            .build();
+    mockIntents.addResponse(expectedResponse);
+
+    Intent intent = Intent.newBuilder().build();
+    FieldMask updateMask = FieldMask.newBuilder().build();
+
+    Intent actualResponse = client.updateIntent(intent, updateMask);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockIntents.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    UpdateIntentRequest actualRequest = (UpdateIntentRequest) actualRequests.get(0);
+
+    Assert.assertEquals(intent, actualRequest.getIntent());
+    Assert.assertEquals(updateMask, actualRequest.getUpdateMask());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void updateIntentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockIntents.addException(exception);
+
+    try {
+      Intent intent = Intent.newBuilder().build();
+      FieldMask updateMask = FieldMask.newBuilder().build();
+
+      client.updateIntent(intent, updateMask);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void deleteIntentTest() {
+    Empty expectedResponse = Empty.newBuilder().build();
+    mockIntents.addResponse(expectedResponse);
+
+    IntentName name = IntentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[INTENT]");
+
+    client.deleteIntent(name);
+
+    List<AbstractMessage> actualRequests = mockIntents.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    DeleteIntentRequest actualRequest = (DeleteIntentRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, IntentName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void deleteIntentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockIntents.addException(exception);
+
+    try {
+      IntentName name = IntentName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[INTENT]");
+
+      client.deleteIntent(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockAgents.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockAgents.java
new file mode 100644
index 000000000..740ffe3e5
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockAgents.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.protobuf.AbstractMessage;
+import io.grpc.ServerServiceDefinition;
+import java.util.List;
+
+@javax.annotation.Generated("by GAPIC")
+@BetaApi
+public class MockAgents implements MockGrpcService {
+  private final MockAgentsImpl serviceImpl;
+
+  public MockAgents() {
+    serviceImpl = new MockAgentsImpl();
+  }
+
+  @Override
+  public List<AbstractMessage> getRequests() {
+    return serviceImpl.getRequests();
+  }
+
+  @Override
+  public void addResponse(AbstractMessage response) {
+    serviceImpl.addResponse(response);
+  }
+
+  @Override
+  public void addException(Exception exception) {
+    serviceImpl.addException(exception);
+  }
+
+  @Override
+  public ServerServiceDefinition getServiceDefinition() {
+    return serviceImpl.bindService();
+  }
+
+  @Override
+  public void reset() {
+    serviceImpl.reset();
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockAgentsImpl.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockAgentsImpl.java
new file mode 100644
index 000000000..e500b3ac8
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockAgentsImpl.java
@@ -0,0 +1,160 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.cloud.dialogflow.cx.v3beta1.AgentsGrpc.AgentsImplBase;
+import com.google.longrunning.Operation;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Empty;
+import io.grpc.stub.StreamObserver;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Queue;
+
+@javax.annotation.Generated("by GAPIC")
+@BetaApi
+public class MockAgentsImpl extends AgentsImplBase {
+  private List<AbstractMessage> requests;
+  private Queue<Object> responses;
+
+  public MockAgentsImpl() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  public List<AbstractMessage> getRequests() {
+    return requests;
+  }
+
+  public void addResponse(AbstractMessage response) {
+    responses.add(response);
+  }
+
+  public void setResponses(List<AbstractMessage> responses) {
+    this.responses = new LinkedList<Object>(responses);
+  }
+
+  public void addException(Exception exception) {
+    responses.add(exception);
+  }
+
+  public void reset() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  @Override
+  public void listAgents(
+      ListAgentsRequest request, StreamObserver<ListAgentsResponse> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof ListAgentsResponse) {
+      requests.add(request);
+      responseObserver.onNext((ListAgentsResponse) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void getAgent(GetAgentRequest request, StreamObserver<Agent> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Agent) {
+      requests.add(request);
+      responseObserver.onNext((Agent) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void createAgent(CreateAgentRequest request, StreamObserver<Agent> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Agent) {
+      requests.add(request);
+      responseObserver.onNext((Agent) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void updateAgent(UpdateAgentRequest request, StreamObserver<Agent> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Agent) {
+      requests.add(request);
+      responseObserver.onNext((Agent) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void deleteAgent(DeleteAgentRequest request, StreamObserver<Empty> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Empty) {
+      requests.add(request);
+      responseObserver.onNext((Empty) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void exportAgent(ExportAgentRequest request, StreamObserver<Operation> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Operation) {
+      requests.add(request);
+      responseObserver.onNext((Operation) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void restoreAgent(
+      RestoreAgentRequest request, StreamObserver<Operation> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Operation) {
+      requests.add(request);
+      responseObserver.onNext((Operation) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockEntityTypes.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockEntityTypes.java
new file mode 100644
index 000000000..a326826ab
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockEntityTypes.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.protobuf.AbstractMessage;
+import io.grpc.ServerServiceDefinition;
+import java.util.List;
+
+@javax.annotation.Generated("by GAPIC")
+@BetaApi
+public class MockEntityTypes implements MockGrpcService {
+  private final MockEntityTypesImpl serviceImpl;
+
+  public MockEntityTypes() {
+    serviceImpl = new MockEntityTypesImpl();
+  }
+
+  @Override
+  public List<AbstractMessage> getRequests() {
+    return serviceImpl.getRequests();
+  }
+
+  @Override
+  public void addResponse(AbstractMessage response) {
+    serviceImpl.addResponse(response);
+  }
+
+  @Override
+  public void addException(Exception exception) {
+    serviceImpl.addException(exception);
+  }
+
+  @Override
+  public ServerServiceDefinition getServiceDefinition() {
+    return serviceImpl.bindService();
+  }
+
+  @Override
+  public void reset() {
+    serviceImpl.reset();
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockEntityTypesImpl.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockEntityTypesImpl.java
new file mode 100644
index 000000000..6fddd9790
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockEntityTypesImpl.java
@@ -0,0 +1,134 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.cloud.dialogflow.cx.v3beta1.EntityTypesGrpc.EntityTypesImplBase;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Empty;
+import io.grpc.stub.StreamObserver;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Queue;
+
+@javax.annotation.Generated("by GAPIC")
+@BetaApi
+public class MockEntityTypesImpl extends EntityTypesImplBase {
+  private List<AbstractMessage> requests;
+  private Queue<Object> responses;
+
+  public MockEntityTypesImpl() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  public List<AbstractMessage> getRequests() {
+    return requests;
+  }
+
+  public void addResponse(AbstractMessage response) {
+    responses.add(response);
+  }
+
+  public void setResponses(List<AbstractMessage> responses) {
+    this.responses = new LinkedList<Object>(responses);
+  }
+
+  public void addException(Exception exception) {
+    responses.add(exception);
+  }
+
+  public void reset() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  @Override
+  public void listEntityTypes(
+      ListEntityTypesRequest request, StreamObserver<ListEntityTypesResponse> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof ListEntityTypesResponse) {
+      requests.add(request);
+      responseObserver.onNext((ListEntityTypesResponse) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void getEntityType(
+      GetEntityTypeRequest request, StreamObserver<EntityType> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof EntityType) {
+      requests.add(request);
+      responseObserver.onNext((EntityType) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void createEntityType(
+      CreateEntityTypeRequest request, StreamObserver<EntityType> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof EntityType) {
+      requests.add(request);
+      responseObserver.onNext((EntityType) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void updateEntityType(
+      UpdateEntityTypeRequest request, StreamObserver<EntityType> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof EntityType) {
+      requests.add(request);
+      responseObserver.onNext((EntityType) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void deleteEntityType(
+      DeleteEntityTypeRequest request, StreamObserver<Empty> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Empty) {
+      requests.add(request);
+      responseObserver.onNext((Empty) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockEnvironments.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockEnvironments.java
new file mode 100644
index 000000000..5c5888ec7
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockEnvironments.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.protobuf.AbstractMessage;
+import io.grpc.ServerServiceDefinition;
+import java.util.List;
+
+@javax.annotation.Generated("by GAPIC")
+@BetaApi
+public class MockEnvironments implements MockGrpcService {
+  private final MockEnvironmentsImpl serviceImpl;
+
+  public MockEnvironments() {
+    serviceImpl = new MockEnvironmentsImpl();
+  }
+
+  @Override
+  public List<AbstractMessage> getRequests() {
+    return serviceImpl.getRequests();
+  }
+
+  @Override
+  public void addResponse(AbstractMessage response) {
+    serviceImpl.addResponse(response);
+  }
+
+  @Override
+  public void addException(Exception exception) {
+    serviceImpl.addException(exception);
+  }
+
+  @Override
+  public ServerServiceDefinition getServiceDefinition() {
+    return serviceImpl.bindService();
+  }
+
+  @Override
+  public void reset() {
+    serviceImpl.reset();
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockEnvironmentsImpl.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockEnvironmentsImpl.java
new file mode 100644
index 000000000..2eb17cdd5
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockEnvironmentsImpl.java
@@ -0,0 +1,151 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.cloud.dialogflow.cx.v3beta1.EnvironmentsGrpc.EnvironmentsImplBase;
+import com.google.longrunning.Operation;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Empty;
+import io.grpc.stub.StreamObserver;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Queue;
+
+@javax.annotation.Generated("by GAPIC")
+@BetaApi
+public class MockEnvironmentsImpl extends EnvironmentsImplBase {
+  private List<AbstractMessage> requests;
+  private Queue<Object> responses;
+
+  public MockEnvironmentsImpl() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  public List<AbstractMessage> getRequests() {
+    return requests;
+  }
+
+  public void addResponse(AbstractMessage response) {
+    responses.add(response);
+  }
+
+  public void setResponses(List<AbstractMessage> responses) {
+    this.responses = new LinkedList<Object>(responses);
+  }
+
+  public void addException(Exception exception) {
+    responses.add(exception);
+  }
+
+  public void reset() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  @Override
+  public void listEnvironments(
+      ListEnvironmentsRequest request, StreamObserver<ListEnvironmentsResponse> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof ListEnvironmentsResponse) {
+      requests.add(request);
+      responseObserver.onNext((ListEnvironmentsResponse) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void getEnvironment(
+      GetEnvironmentRequest request, StreamObserver<Environment> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Environment) {
+      requests.add(request);
+      responseObserver.onNext((Environment) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void createEnvironment(
+      CreateEnvironmentRequest request, StreamObserver<Operation> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Operation) {
+      requests.add(request);
+      responseObserver.onNext((Operation) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void updateEnvironment(
+      UpdateEnvironmentRequest request, StreamObserver<Operation> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Operation) {
+      requests.add(request);
+      responseObserver.onNext((Operation) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void deleteEnvironment(
+      DeleteEnvironmentRequest request, StreamObserver<Empty> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Empty) {
+      requests.add(request);
+      responseObserver.onNext((Empty) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void lookupEnvironmentHistory(
+      LookupEnvironmentHistoryRequest request,
+      StreamObserver<LookupEnvironmentHistoryResponse> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof LookupEnvironmentHistoryResponse) {
+      requests.add(request);
+      responseObserver.onNext((LookupEnvironmentHistoryResponse) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockFlows.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockFlows.java
new file mode 100644
index 000000000..01fed1242
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockFlows.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.protobuf.AbstractMessage;
+import io.grpc.ServerServiceDefinition;
+import java.util.List;
+
+@javax.annotation.Generated("by GAPIC")
+@BetaApi
+public class MockFlows implements MockGrpcService {
+  private final MockFlowsImpl serviceImpl;
+
+  public MockFlows() {
+    serviceImpl = new MockFlowsImpl();
+  }
+
+  @Override
+  public List<AbstractMessage> getRequests() {
+    return serviceImpl.getRequests();
+  }
+
+  @Override
+  public void addResponse(AbstractMessage response) {
+    serviceImpl.addResponse(response);
+  }
+
+  @Override
+  public void addException(Exception exception) {
+    serviceImpl.addException(exception);
+  }
+
+  @Override
+  public ServerServiceDefinition getServiceDefinition() {
+    return serviceImpl.bindService();
+  }
+
+  @Override
+  public void reset() {
+    serviceImpl.reset();
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockFlowsImpl.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockFlowsImpl.java
new file mode 100644
index 000000000..5f81de1df
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockFlowsImpl.java
@@ -0,0 +1,145 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.cloud.dialogflow.cx.v3beta1.FlowsGrpc.FlowsImplBase;
+import com.google.longrunning.Operation;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Empty;
+import io.grpc.stub.StreamObserver;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Queue;
+
+@javax.annotation.Generated("by GAPIC")
+@BetaApi
+public class MockFlowsImpl extends FlowsImplBase {
+  private List<AbstractMessage> requests;
+  private Queue<Object> responses;
+
+  public MockFlowsImpl() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  public List<AbstractMessage> getRequests() {
+    return requests;
+  }
+
+  public void addResponse(AbstractMessage response) {
+    responses.add(response);
+  }
+
+  public void setResponses(List<AbstractMessage> responses) {
+    this.responses = new LinkedList<Object>(responses);
+  }
+
+  public void addException(Exception exception) {
+    responses.add(exception);
+  }
+
+  public void reset() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  @Override
+  public void createFlow(CreateFlowRequest request, StreamObserver<Flow> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Flow) {
+      requests.add(request);
+      responseObserver.onNext((Flow) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void deleteFlow(DeleteFlowRequest request, StreamObserver<Empty> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Empty) {
+      requests.add(request);
+      responseObserver.onNext((Empty) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void listFlows(
+      ListFlowsRequest request, StreamObserver<ListFlowsResponse> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof ListFlowsResponse) {
+      requests.add(request);
+      responseObserver.onNext((ListFlowsResponse) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void getFlow(GetFlowRequest request, StreamObserver<Flow> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Flow) {
+      requests.add(request);
+      responseObserver.onNext((Flow) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void updateFlow(UpdateFlowRequest request, StreamObserver<Flow> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Flow) {
+      requests.add(request);
+      responseObserver.onNext((Flow) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void trainFlow(TrainFlowRequest request, StreamObserver<Operation> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Operation) {
+      requests.add(request);
+      responseObserver.onNext((Operation) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockIntents.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockIntents.java
new file mode 100644
index 000000000..67297127e
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockIntents.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.protobuf.AbstractMessage;
+import io.grpc.ServerServiceDefinition;
+import java.util.List;
+
+@javax.annotation.Generated("by GAPIC")
+@BetaApi
+public class MockIntents implements MockGrpcService {
+  private final MockIntentsImpl serviceImpl;
+
+  public MockIntents() {
+    serviceImpl = new MockIntentsImpl();
+  }
+
+  @Override
+  public List<AbstractMessage> getRequests() {
+    return serviceImpl.getRequests();
+  }
+
+  @Override
+  public void addResponse(AbstractMessage response) {
+    serviceImpl.addResponse(response);
+  }
+
+  @Override
+  public void addException(Exception exception) {
+    serviceImpl.addException(exception);
+  }
+
+  @Override
+  public ServerServiceDefinition getServiceDefinition() {
+    return serviceImpl.bindService();
+  }
+
+  @Override
+  public void reset() {
+    serviceImpl.reset();
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockIntentsImpl.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockIntentsImpl.java
new file mode 100644
index 000000000..d51edbb92
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockIntentsImpl.java
@@ -0,0 +1,130 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.cloud.dialogflow.cx.v3beta1.IntentsGrpc.IntentsImplBase;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Empty;
+import io.grpc.stub.StreamObserver;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Queue;
+
+@javax.annotation.Generated("by GAPIC")
+@BetaApi
+public class MockIntentsImpl extends IntentsImplBase {
+  private List<AbstractMessage> requests;
+  private Queue<Object> responses;
+
+  public MockIntentsImpl() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  public List<AbstractMessage> getRequests() {
+    return requests;
+  }
+
+  public void addResponse(AbstractMessage response) {
+    responses.add(response);
+  }
+
+  public void setResponses(List<AbstractMessage> responses) {
+    this.responses = new LinkedList<Object>(responses);
+  }
+
+  public void addException(Exception exception) {
+    responses.add(exception);
+  }
+
+  public void reset() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  @Override
+  public void listIntents(
+      ListIntentsRequest request, StreamObserver<ListIntentsResponse> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof ListIntentsResponse) {
+      requests.add(request);
+      responseObserver.onNext((ListIntentsResponse) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void getIntent(GetIntentRequest request, StreamObserver<Intent> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Intent) {
+      requests.add(request);
+      responseObserver.onNext((Intent) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void createIntent(CreateIntentRequest request, StreamObserver<Intent> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Intent) {
+      requests.add(request);
+      responseObserver.onNext((Intent) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void updateIntent(UpdateIntentRequest request, StreamObserver<Intent> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Intent) {
+      requests.add(request);
+      responseObserver.onNext((Intent) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void deleteIntent(DeleteIntentRequest request, StreamObserver<Empty> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Empty) {
+      requests.add(request);
+      responseObserver.onNext((Empty) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockPages.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockPages.java
new file mode 100644
index 000000000..76faba3d6
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockPages.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.protobuf.AbstractMessage;
+import io.grpc.ServerServiceDefinition;
+import java.util.List;
+
+@javax.annotation.Generated("by GAPIC")
+@BetaApi
+public class MockPages implements MockGrpcService {
+  private final MockPagesImpl serviceImpl;
+
+  public MockPages() {
+    serviceImpl = new MockPagesImpl();
+  }
+
+  @Override
+  public List<AbstractMessage> getRequests() {
+    return serviceImpl.getRequests();
+  }
+
+  @Override
+  public void addResponse(AbstractMessage response) {
+    serviceImpl.addResponse(response);
+  }
+
+  @Override
+  public void addException(Exception exception) {
+    serviceImpl.addException(exception);
+  }
+
+  @Override
+  public ServerServiceDefinition getServiceDefinition() {
+    return serviceImpl.bindService();
+  }
+
+  @Override
+  public void reset() {
+    serviceImpl.reset();
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockPagesImpl.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockPagesImpl.java
new file mode 100644
index 000000000..13b734fb2
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockPagesImpl.java
@@ -0,0 +1,130 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.cloud.dialogflow.cx.v3beta1.PagesGrpc.PagesImplBase;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Empty;
+import io.grpc.stub.StreamObserver;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Queue;
+
+@javax.annotation.Generated("by GAPIC")
+@BetaApi
+public class MockPagesImpl extends PagesImplBase {
+  private List<AbstractMessage> requests;
+  private Queue<Object> responses;
+
+  public MockPagesImpl() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  public List<AbstractMessage> getRequests() {
+    return requests;
+  }
+
+  public void addResponse(AbstractMessage response) {
+    responses.add(response);
+  }
+
+  public void setResponses(List<AbstractMessage> responses) {
+    this.responses = new LinkedList<Object>(responses);
+  }
+
+  public void addException(Exception exception) {
+    responses.add(exception);
+  }
+
+  public void reset() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  @Override
+  public void listPages(
+      ListPagesRequest request, StreamObserver<ListPagesResponse> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof ListPagesResponse) {
+      requests.add(request);
+      responseObserver.onNext((ListPagesResponse) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void getPage(GetPageRequest request, StreamObserver<Page> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Page) {
+      requests.add(request);
+      responseObserver.onNext((Page) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void createPage(CreatePageRequest request, StreamObserver<Page> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Page) {
+      requests.add(request);
+      responseObserver.onNext((Page) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void updatePage(UpdatePageRequest request, StreamObserver<Page> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Page) {
+      requests.add(request);
+      responseObserver.onNext((Page) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void deletePage(DeletePageRequest request, StreamObserver<Empty> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Empty) {
+      requests.add(request);
+      responseObserver.onNext((Empty) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockSessionEntityTypes.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockSessionEntityTypes.java
new file mode 100644
index 000000000..aaa494d90
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockSessionEntityTypes.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.protobuf.AbstractMessage;
+import io.grpc.ServerServiceDefinition;
+import java.util.List;
+
+@javax.annotation.Generated("by GAPIC")
+@BetaApi
+public class MockSessionEntityTypes implements MockGrpcService {
+  private final MockSessionEntityTypesImpl serviceImpl;
+
+  public MockSessionEntityTypes() {
+    serviceImpl = new MockSessionEntityTypesImpl();
+  }
+
+  @Override
+  public List<AbstractMessage> getRequests() {
+    return serviceImpl.getRequests();
+  }
+
+  @Override
+  public void addResponse(AbstractMessage response) {
+    serviceImpl.addResponse(response);
+  }
+
+  @Override
+  public void addException(Exception exception) {
+    serviceImpl.addException(exception);
+  }
+
+  @Override
+  public ServerServiceDefinition getServiceDefinition() {
+    return serviceImpl.bindService();
+  }
+
+  @Override
+  public void reset() {
+    serviceImpl.reset();
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockSessionEntityTypesImpl.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockSessionEntityTypesImpl.java
new file mode 100644
index 000000000..8745b9ab4
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockSessionEntityTypesImpl.java
@@ -0,0 +1,135 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypesGrpc.SessionEntityTypesImplBase;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Empty;
+import io.grpc.stub.StreamObserver;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Queue;
+
+@javax.annotation.Generated("by GAPIC")
+@BetaApi
+public class MockSessionEntityTypesImpl extends SessionEntityTypesImplBase {
+  private List<AbstractMessage> requests;
+  private Queue<Object> responses;
+
+  public MockSessionEntityTypesImpl() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  public List<AbstractMessage> getRequests() {
+    return requests;
+  }
+
+  public void addResponse(AbstractMessage response) {
+    responses.add(response);
+  }
+
+  public void setResponses(List<AbstractMessage> responses) {
+    this.responses = new LinkedList<Object>(responses);
+  }
+
+  public void addException(Exception exception) {
+    responses.add(exception);
+  }
+
+  public void reset() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  @Override
+  public void listSessionEntityTypes(
+      ListSessionEntityTypesRequest request,
+      StreamObserver<ListSessionEntityTypesResponse> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof ListSessionEntityTypesResponse) {
+      requests.add(request);
+      responseObserver.onNext((ListSessionEntityTypesResponse) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void getSessionEntityType(
+      GetSessionEntityTypeRequest request, StreamObserver<SessionEntityType> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof SessionEntityType) {
+      requests.add(request);
+      responseObserver.onNext((SessionEntityType) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void createSessionEntityType(
+      CreateSessionEntityTypeRequest request, StreamObserver<SessionEntityType> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof SessionEntityType) {
+      requests.add(request);
+      responseObserver.onNext((SessionEntityType) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void updateSessionEntityType(
+      UpdateSessionEntityTypeRequest request, StreamObserver<SessionEntityType> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof SessionEntityType) {
+      requests.add(request);
+      responseObserver.onNext((SessionEntityType) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void deleteSessionEntityType(
+      DeleteSessionEntityTypeRequest request, StreamObserver<Empty> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Empty) {
+      requests.add(request);
+      responseObserver.onNext((Empty) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockSessions.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockSessions.java
new file mode 100644
index 000000000..3e1f1fe67
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockSessions.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.protobuf.AbstractMessage;
+import io.grpc.ServerServiceDefinition;
+import java.util.List;
+
+@javax.annotation.Generated("by GAPIC")
+@BetaApi
+public class MockSessions implements MockGrpcService {
+  private final MockSessionsImpl serviceImpl;
+
+  public MockSessions() {
+    serviceImpl = new MockSessionsImpl();
+  }
+
+  @Override
+  public List<AbstractMessage> getRequests() {
+    return serviceImpl.getRequests();
+  }
+
+  @Override
+  public void addResponse(AbstractMessage response) {
+    serviceImpl.addResponse(response);
+  }
+
+  @Override
+  public void addException(Exception exception) {
+    serviceImpl.addException(exception);
+  }
+
+  @Override
+  public ServerServiceDefinition getServiceDefinition() {
+    return serviceImpl.bindService();
+  }
+
+  @Override
+  public void reset() {
+    serviceImpl.reset();
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockSessionsImpl.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockSessionsImpl.java
new file mode 100644
index 000000000..da8b721ff
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockSessionsImpl.java
@@ -0,0 +1,134 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.cloud.dialogflow.cx.v3beta1.SessionsGrpc.SessionsImplBase;
+import com.google.protobuf.AbstractMessage;
+import io.grpc.stub.StreamObserver;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Queue;
+
+@javax.annotation.Generated("by GAPIC")
+@BetaApi
+public class MockSessionsImpl extends SessionsImplBase {
+  private List<AbstractMessage> requests;
+  private Queue<Object> responses;
+
+  public MockSessionsImpl() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  public List<AbstractMessage> getRequests() {
+    return requests;
+  }
+
+  public void addResponse(AbstractMessage response) {
+    responses.add(response);
+  }
+
+  public void setResponses(List<AbstractMessage> responses) {
+    this.responses = new LinkedList<Object>(responses);
+  }
+
+  public void addException(Exception exception) {
+    responses.add(exception);
+  }
+
+  public void reset() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  @Override
+  public void detectIntent(
+      DetectIntentRequest request, StreamObserver<DetectIntentResponse> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof DetectIntentResponse) {
+      requests.add(request);
+      responseObserver.onNext((DetectIntentResponse) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public StreamObserver<StreamingDetectIntentRequest> streamingDetectIntent(
+      final StreamObserver<StreamingDetectIntentResponse> responseObserver) {
+    StreamObserver<StreamingDetectIntentRequest> requestObserver =
+        new StreamObserver<StreamingDetectIntentRequest>() {
+          @Override
+          public void onNext(StreamingDetectIntentRequest value) {
+            requests.add(value);
+            final Object response = responses.remove();
+            if (response instanceof StreamingDetectIntentResponse) {
+              responseObserver.onNext((StreamingDetectIntentResponse) response);
+            } else if (response instanceof Exception) {
+              responseObserver.onError((Exception) response);
+            } else {
+              responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+            }
+          }
+
+          @Override
+          public void onError(Throwable t) {
+            responseObserver.onError(t);
+          }
+
+          @Override
+          public void onCompleted() {
+            responseObserver.onCompleted();
+          }
+        };
+    return requestObserver;
+  }
+
+  @Override
+  public void matchIntent(
+      MatchIntentRequest request, StreamObserver<MatchIntentResponse> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof MatchIntentResponse) {
+      requests.add(request);
+      responseObserver.onNext((MatchIntentResponse) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void fulfillIntent(
+      FulfillIntentRequest request, StreamObserver<FulfillIntentResponse> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof FulfillIntentResponse) {
+      requests.add(request);
+      responseObserver.onNext((FulfillIntentResponse) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockTransitionRouteGroups.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockTransitionRouteGroups.java
new file mode 100644
index 000000000..c0e8f6d5b
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockTransitionRouteGroups.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.protobuf.AbstractMessage;
+import io.grpc.ServerServiceDefinition;
+import java.util.List;
+
+@javax.annotation.Generated("by GAPIC")
+@BetaApi
+public class MockTransitionRouteGroups implements MockGrpcService {
+  private final MockTransitionRouteGroupsImpl serviceImpl;
+
+  public MockTransitionRouteGroups() {
+    serviceImpl = new MockTransitionRouteGroupsImpl();
+  }
+
+  @Override
+  public List<AbstractMessage> getRequests() {
+    return serviceImpl.getRequests();
+  }
+
+  @Override
+  public void addResponse(AbstractMessage response) {
+    serviceImpl.addResponse(response);
+  }
+
+  @Override
+  public void addException(Exception exception) {
+    serviceImpl.addException(exception);
+  }
+
+  @Override
+  public ServerServiceDefinition getServiceDefinition() {
+    return serviceImpl.bindService();
+  }
+
+  @Override
+  public void reset() {
+    serviceImpl.reset();
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockTransitionRouteGroupsImpl.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockTransitionRouteGroupsImpl.java
new file mode 100644
index 000000000..51e9944a0
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockTransitionRouteGroupsImpl.java
@@ -0,0 +1,138 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupsGrpc.TransitionRouteGroupsImplBase;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Empty;
+import io.grpc.stub.StreamObserver;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Queue;
+
+@javax.annotation.Generated("by GAPIC")
+@BetaApi
+public class MockTransitionRouteGroupsImpl extends TransitionRouteGroupsImplBase {
+  private List<AbstractMessage> requests;
+  private Queue<Object> responses;
+
+  public MockTransitionRouteGroupsImpl() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  public List<AbstractMessage> getRequests() {
+    return requests;
+  }
+
+  public void addResponse(AbstractMessage response) {
+    responses.add(response);
+  }
+
+  public void setResponses(List<AbstractMessage> responses) {
+    this.responses = new LinkedList<Object>(responses);
+  }
+
+  public void addException(Exception exception) {
+    responses.add(exception);
+  }
+
+  public void reset() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  @Override
+  public void listTransitionRouteGroups(
+      ListTransitionRouteGroupsRequest request,
+      StreamObserver<ListTransitionRouteGroupsResponse> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof ListTransitionRouteGroupsResponse) {
+      requests.add(request);
+      responseObserver.onNext((ListTransitionRouteGroupsResponse) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void getTransitionRouteGroup(
+      GetTransitionRouteGroupRequest request,
+      StreamObserver<TransitionRouteGroup> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof TransitionRouteGroup) {
+      requests.add(request);
+      responseObserver.onNext((TransitionRouteGroup) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void createTransitionRouteGroup(
+      CreateTransitionRouteGroupRequest request,
+      StreamObserver<TransitionRouteGroup> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof TransitionRouteGroup) {
+      requests.add(request);
+      responseObserver.onNext((TransitionRouteGroup) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void updateTransitionRouteGroup(
+      UpdateTransitionRouteGroupRequest request,
+      StreamObserver<TransitionRouteGroup> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof TransitionRouteGroup) {
+      requests.add(request);
+      responseObserver.onNext((TransitionRouteGroup) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void deleteTransitionRouteGroup(
+      DeleteTransitionRouteGroupRequest request, StreamObserver<Empty> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Empty) {
+      requests.add(request);
+      responseObserver.onNext((Empty) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockVersions.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockVersions.java
new file mode 100644
index 000000000..0eda34bfe
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockVersions.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.protobuf.AbstractMessage;
+import io.grpc.ServerServiceDefinition;
+import java.util.List;
+
+@javax.annotation.Generated("by GAPIC")
+@BetaApi
+public class MockVersions implements MockGrpcService {
+  private final MockVersionsImpl serviceImpl;
+
+  public MockVersions() {
+    serviceImpl = new MockVersionsImpl();
+  }
+
+  @Override
+  public List<AbstractMessage> getRequests() {
+    return serviceImpl.getRequests();
+  }
+
+  @Override
+  public void addResponse(AbstractMessage response) {
+    serviceImpl.addResponse(response);
+  }
+
+  @Override
+  public void addException(Exception exception) {
+    serviceImpl.addException(exception);
+  }
+
+  @Override
+  public ServerServiceDefinition getServiceDefinition() {
+    return serviceImpl.bindService();
+  }
+
+  @Override
+  public void reset() {
+    serviceImpl.reset();
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockVersionsImpl.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockVersionsImpl.java
new file mode 100644
index 000000000..e8662d51b
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockVersionsImpl.java
@@ -0,0 +1,147 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.cloud.dialogflow.cx.v3beta1.VersionsGrpc.VersionsImplBase;
+import com.google.longrunning.Operation;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Empty;
+import io.grpc.stub.StreamObserver;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Queue;
+
+@javax.annotation.Generated("by GAPIC")
+@BetaApi
+public class MockVersionsImpl extends VersionsImplBase {
+  private List<AbstractMessage> requests;
+  private Queue<Object> responses;
+
+  public MockVersionsImpl() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  public List<AbstractMessage> getRequests() {
+    return requests;
+  }
+
+  public void addResponse(AbstractMessage response) {
+    responses.add(response);
+  }
+
+  public void setResponses(List<AbstractMessage> responses) {
+    this.responses = new LinkedList<Object>(responses);
+  }
+
+  public void addException(Exception exception) {
+    responses.add(exception);
+  }
+
+  public void reset() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  @Override
+  public void listVersions(
+      ListVersionsRequest request, StreamObserver<ListVersionsResponse> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof ListVersionsResponse) {
+      requests.add(request);
+      responseObserver.onNext((ListVersionsResponse) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void getVersion(GetVersionRequest request, StreamObserver<Version> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Version) {
+      requests.add(request);
+      responseObserver.onNext((Version) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void createVersion(
+      CreateVersionRequest request, StreamObserver<Operation> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Operation) {
+      requests.add(request);
+      responseObserver.onNext((Operation) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void updateVersion(
+      UpdateVersionRequest request, StreamObserver<Version> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Version) {
+      requests.add(request);
+      responseObserver.onNext((Version) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void deleteVersion(DeleteVersionRequest request, StreamObserver<Empty> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Empty) {
+      requests.add(request);
+      responseObserver.onNext((Empty) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void loadVersion(LoadVersionRequest request, StreamObserver<Operation> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Operation) {
+      requests.add(request);
+      responseObserver.onNext((Operation) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockWebhooks.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockWebhooks.java
new file mode 100644
index 000000000..08ac7c1a2
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockWebhooks.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.protobuf.AbstractMessage;
+import io.grpc.ServerServiceDefinition;
+import java.util.List;
+
+@javax.annotation.Generated("by GAPIC")
+@BetaApi
+public class MockWebhooks implements MockGrpcService {
+  private final MockWebhooksImpl serviceImpl;
+
+  public MockWebhooks() {
+    serviceImpl = new MockWebhooksImpl();
+  }
+
+  @Override
+  public List<AbstractMessage> getRequests() {
+    return serviceImpl.getRequests();
+  }
+
+  @Override
+  public void addResponse(AbstractMessage response) {
+    serviceImpl.addResponse(response);
+  }
+
+  @Override
+  public void addException(Exception exception) {
+    serviceImpl.addException(exception);
+  }
+
+  @Override
+  public ServerServiceDefinition getServiceDefinition() {
+    return serviceImpl.bindService();
+  }
+
+  @Override
+  public void reset() {
+    serviceImpl.reset();
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockWebhooksImpl.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockWebhooksImpl.java
new file mode 100644
index 000000000..2b8cb77e8
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/MockWebhooksImpl.java
@@ -0,0 +1,132 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.cloud.dialogflow.cx.v3beta1.WebhooksGrpc.WebhooksImplBase;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Empty;
+import io.grpc.stub.StreamObserver;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Queue;
+
+@javax.annotation.Generated("by GAPIC")
+@BetaApi
+public class MockWebhooksImpl extends WebhooksImplBase {
+  private List<AbstractMessage> requests;
+  private Queue<Object> responses;
+
+  public MockWebhooksImpl() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  public List<AbstractMessage> getRequests() {
+    return requests;
+  }
+
+  public void addResponse(AbstractMessage response) {
+    responses.add(response);
+  }
+
+  public void setResponses(List<AbstractMessage> responses) {
+    this.responses = new LinkedList<Object>(responses);
+  }
+
+  public void addException(Exception exception) {
+    responses.add(exception);
+  }
+
+  public void reset() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  @Override
+  public void listWebhooks(
+      ListWebhooksRequest request, StreamObserver<ListWebhooksResponse> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof ListWebhooksResponse) {
+      requests.add(request);
+      responseObserver.onNext((ListWebhooksResponse) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void getWebhook(GetWebhookRequest request, StreamObserver<Webhook> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Webhook) {
+      requests.add(request);
+      responseObserver.onNext((Webhook) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void createWebhook(
+      CreateWebhookRequest request, StreamObserver<Webhook> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Webhook) {
+      requests.add(request);
+      responseObserver.onNext((Webhook) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void updateWebhook(
+      UpdateWebhookRequest request, StreamObserver<Webhook> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Webhook) {
+      requests.add(request);
+      responseObserver.onNext((Webhook) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+
+  @Override
+  public void deleteWebhook(DeleteWebhookRequest request, StreamObserver<Empty> responseObserver) {
+    Object response = responses.remove();
+    if (response instanceof Empty) {
+      requests.add(request);
+      responseObserver.onNext((Empty) response);
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError((Exception) response);
+    } else {
+      responseObserver.onError(new IllegalArgumentException("Unrecognized response type"));
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/PagesClientTest.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/PagesClientTest.java
new file mode 100644
index 000000000..af86c613a
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/PagesClientTest.java
@@ -0,0 +1,324 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.PagesClient.ListPagesPagedResponse;
+
+import com.google.api.gax.core.NoCredentialsProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.testing.LocalChannelProvider;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.api.gax.grpc.testing.MockServiceHelper;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.InvalidArgumentException;
+import com.google.common.collect.Lists;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import io.grpc.Status;
+import io.grpc.StatusRuntimeException;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+import java.util.UUID;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+@javax.annotation.Generated("by GAPIC")
+public class PagesClientTest {
+  private static MockPages mockPages;
+  private static MockFlows mockFlows;
+  private static MockAgents mockAgents;
+  private static MockEntityTypes mockEntityTypes;
+  private static MockEnvironments mockEnvironments;
+  private static MockIntents mockIntents;
+  private static MockSessionEntityTypes mockSessionEntityTypes;
+  private static MockSessions mockSessions;
+  private static MockTransitionRouteGroups mockTransitionRouteGroups;
+  private static MockVersions mockVersions;
+  private static MockWebhooks mockWebhooks;
+  private static MockServiceHelper serviceHelper;
+  private PagesClient client;
+  private LocalChannelProvider channelProvider;
+
+  @BeforeClass
+  public static void startStaticServer() {
+    mockPages = new MockPages();
+    mockFlows = new MockFlows();
+    mockAgents = new MockAgents();
+    mockEntityTypes = new MockEntityTypes();
+    mockEnvironments = new MockEnvironments();
+    mockIntents = new MockIntents();
+    mockSessionEntityTypes = new MockSessionEntityTypes();
+    mockSessions = new MockSessions();
+    mockTransitionRouteGroups = new MockTransitionRouteGroups();
+    mockVersions = new MockVersions();
+    mockWebhooks = new MockWebhooks();
+    serviceHelper =
+        new MockServiceHelper(
+            UUID.randomUUID().toString(),
+            Arrays.<MockGrpcService>asList(
+                mockPages,
+                mockFlows,
+                mockAgents,
+                mockEntityTypes,
+                mockEnvironments,
+                mockIntents,
+                mockSessionEntityTypes,
+                mockSessions,
+                mockTransitionRouteGroups,
+                mockVersions,
+                mockWebhooks));
+    serviceHelper.start();
+  }
+
+  @AfterClass
+  public static void stopServer() {
+    serviceHelper.stop();
+  }
+
+  @Before
+  public void setUp() throws IOException {
+    serviceHelper.reset();
+    channelProvider = serviceHelper.createChannelProvider();
+    PagesSettings settings =
+        PagesSettings.newBuilder()
+            .setTransportChannelProvider(channelProvider)
+            .setCredentialsProvider(NoCredentialsProvider.create())
+            .build();
+    client = PagesClient.create(settings);
+  }
+
+  @After
+  public void tearDown() throws Exception {
+    client.close();
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void listPagesTest() {
+    String nextPageToken = "";
+    Page pagesElement = Page.newBuilder().build();
+    List<Page> pages = Arrays.asList(pagesElement);
+    ListPagesResponse expectedResponse =
+        ListPagesResponse.newBuilder().setNextPageToken(nextPageToken).addAllPages(pages).build();
+    mockPages.addResponse(expectedResponse);
+
+    FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+
+    ListPagesPagedResponse pagedListResponse = client.listPages(parent);
+
+    List<Page> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getPagesList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockPages.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListPagesRequest actualRequest = (ListPagesRequest) actualRequests.get(0);
+
+    Assert.assertEquals(parent, FlowName.parse(actualRequest.getParent()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void listPagesExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockPages.addException(exception);
+
+    try {
+      FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+
+      client.listPages(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void getPageTest() {
+    PageName name2 = PageName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[PAGE]");
+    String displayName = "displayName1615086568";
+    Page expectedResponse =
+        Page.newBuilder().setName(name2.toString()).setDisplayName(displayName).build();
+    mockPages.addResponse(expectedResponse);
+
+    PageName name = PageName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[PAGE]");
+
+    Page actualResponse = client.getPage(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockPages.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetPageRequest actualRequest = (GetPageRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, PageName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void getPageExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockPages.addException(exception);
+
+    try {
+      PageName name = PageName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[PAGE]");
+
+      client.getPage(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void createPageTest() {
+    PageName name = PageName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[PAGE]");
+    String displayName = "displayName1615086568";
+    Page expectedResponse =
+        Page.newBuilder().setName(name.toString()).setDisplayName(displayName).build();
+    mockPages.addResponse(expectedResponse);
+
+    FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+    Page page = Page.newBuilder().build();
+
+    Page actualResponse = client.createPage(parent, page);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockPages.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    CreatePageRequest actualRequest = (CreatePageRequest) actualRequests.get(0);
+
+    Assert.assertEquals(parent, FlowName.parse(actualRequest.getParent()));
+    Assert.assertEquals(page, actualRequest.getPage());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void createPageExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockPages.addException(exception);
+
+    try {
+      FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+      Page page = Page.newBuilder().build();
+
+      client.createPage(parent, page);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void updatePageTest() {
+    PageName name = PageName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[PAGE]");
+    String displayName = "displayName1615086568";
+    Page expectedResponse =
+        Page.newBuilder().setName(name.toString()).setDisplayName(displayName).build();
+    mockPages.addResponse(expectedResponse);
+
+    Page page = Page.newBuilder().build();
+    FieldMask updateMask = FieldMask.newBuilder().build();
+
+    Page actualResponse = client.updatePage(page, updateMask);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockPages.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    UpdatePageRequest actualRequest = (UpdatePageRequest) actualRequests.get(0);
+
+    Assert.assertEquals(page, actualRequest.getPage());
+    Assert.assertEquals(updateMask, actualRequest.getUpdateMask());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void updatePageExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockPages.addException(exception);
+
+    try {
+      Page page = Page.newBuilder().build();
+      FieldMask updateMask = FieldMask.newBuilder().build();
+
+      client.updatePage(page, updateMask);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void deletePageTest() {
+    Empty expectedResponse = Empty.newBuilder().build();
+    mockPages.addResponse(expectedResponse);
+
+    PageName name = PageName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[PAGE]");
+
+    client.deletePage(name);
+
+    List<AbstractMessage> actualRequests = mockPages.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    DeletePageRequest actualRequest = (DeletePageRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, PageName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void deletePageExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockPages.addException(exception);
+
+    try {
+      PageName name = PageName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[PAGE]");
+
+      client.deletePage(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityTypesClientTest.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityTypesClientTest.java
new file mode 100644
index 000000000..c08705f0a
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityTypesClientTest.java
@@ -0,0 +1,351 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypesClient.ListSessionEntityTypesPagedResponse;
+
+import com.google.api.gax.core.NoCredentialsProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.testing.LocalChannelProvider;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.api.gax.grpc.testing.MockServiceHelper;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.InvalidArgumentException;
+import com.google.common.collect.Lists;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import io.grpc.Status;
+import io.grpc.StatusRuntimeException;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+import java.util.UUID;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+@javax.annotation.Generated("by GAPIC")
+public class SessionEntityTypesClientTest {
+  private static MockPages mockPages;
+  private static MockFlows mockFlows;
+  private static MockAgents mockAgents;
+  private static MockEntityTypes mockEntityTypes;
+  private static MockEnvironments mockEnvironments;
+  private static MockIntents mockIntents;
+  private static MockSessionEntityTypes mockSessionEntityTypes;
+  private static MockSessions mockSessions;
+  private static MockTransitionRouteGroups mockTransitionRouteGroups;
+  private static MockVersions mockVersions;
+  private static MockWebhooks mockWebhooks;
+  private static MockServiceHelper serviceHelper;
+  private SessionEntityTypesClient client;
+  private LocalChannelProvider channelProvider;
+
+  @BeforeClass
+  public static void startStaticServer() {
+    mockPages = new MockPages();
+    mockFlows = new MockFlows();
+    mockAgents = new MockAgents();
+    mockEntityTypes = new MockEntityTypes();
+    mockEnvironments = new MockEnvironments();
+    mockIntents = new MockIntents();
+    mockSessionEntityTypes = new MockSessionEntityTypes();
+    mockSessions = new MockSessions();
+    mockTransitionRouteGroups = new MockTransitionRouteGroups();
+    mockVersions = new MockVersions();
+    mockWebhooks = new MockWebhooks();
+    serviceHelper =
+        new MockServiceHelper(
+            UUID.randomUUID().toString(),
+            Arrays.<MockGrpcService>asList(
+                mockPages,
+                mockFlows,
+                mockAgents,
+                mockEntityTypes,
+                mockEnvironments,
+                mockIntents,
+                mockSessionEntityTypes,
+                mockSessions,
+                mockTransitionRouteGroups,
+                mockVersions,
+                mockWebhooks));
+    serviceHelper.start();
+  }
+
+  @AfterClass
+  public static void stopServer() {
+    serviceHelper.stop();
+  }
+
+  @Before
+  public void setUp() throws IOException {
+    serviceHelper.reset();
+    channelProvider = serviceHelper.createChannelProvider();
+    SessionEntityTypesSettings settings =
+        SessionEntityTypesSettings.newBuilder()
+            .setTransportChannelProvider(channelProvider)
+            .setCredentialsProvider(NoCredentialsProvider.create())
+            .build();
+    client = SessionEntityTypesClient.create(settings);
+  }
+
+  @After
+  public void tearDown() throws Exception {
+    client.close();
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void listSessionEntityTypesTest() {
+    String nextPageToken = "";
+    SessionEntityType sessionEntityTypesElement = SessionEntityType.newBuilder().build();
+    List<SessionEntityType> sessionEntityTypes = Arrays.asList(sessionEntityTypesElement);
+    ListSessionEntityTypesResponse expectedResponse =
+        ListSessionEntityTypesResponse.newBuilder()
+            .setNextPageToken(nextPageToken)
+            .addAllSessionEntityTypes(sessionEntityTypes)
+            .build();
+    mockSessionEntityTypes.addResponse(expectedResponse);
+
+    SessionName parent =
+        SessionName.ofProjectLocationAgentSessionName(
+            "[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+
+    ListSessionEntityTypesPagedResponse pagedListResponse = client.listSessionEntityTypes(parent);
+
+    List<SessionEntityType> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getSessionEntityTypesList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockSessionEntityTypes.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListSessionEntityTypesRequest actualRequest =
+        (ListSessionEntityTypesRequest) actualRequests.get(0);
+
+    Assert.assertEquals(parent, SessionName.parse(actualRequest.getParent()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void listSessionEntityTypesExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockSessionEntityTypes.addException(exception);
+
+    try {
+      SessionName parent =
+          SessionName.ofProjectLocationAgentSessionName(
+              "[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+
+      client.listSessionEntityTypes(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void getSessionEntityTypeTest() {
+    SessionEntityTypeName name2 =
+        SessionEntityTypeName.ofProjectLocationAgentSessionEntityTypeName(
+            "[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]", "[ENTITY_TYPE]");
+    SessionEntityType expectedResponse =
+        SessionEntityType.newBuilder().setName(name2.toString()).build();
+    mockSessionEntityTypes.addResponse(expectedResponse);
+
+    SessionEntityTypeName name =
+        SessionEntityTypeName.ofProjectLocationAgentSessionEntityTypeName(
+            "[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]", "[ENTITY_TYPE]");
+
+    SessionEntityType actualResponse = client.getSessionEntityType(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockSessionEntityTypes.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetSessionEntityTypeRequest actualRequest = (GetSessionEntityTypeRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, SessionEntityTypeName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void getSessionEntityTypeExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockSessionEntityTypes.addException(exception);
+
+    try {
+      SessionEntityTypeName name =
+          SessionEntityTypeName.ofProjectLocationAgentSessionEntityTypeName(
+              "[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]", "[ENTITY_TYPE]");
+
+      client.getSessionEntityType(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void createSessionEntityTypeTest() {
+    SessionEntityTypeName name =
+        SessionEntityTypeName.ofProjectLocationAgentSessionEntityTypeName(
+            "[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]", "[ENTITY_TYPE]");
+    SessionEntityType expectedResponse =
+        SessionEntityType.newBuilder().setName(name.toString()).build();
+    mockSessionEntityTypes.addResponse(expectedResponse);
+
+    SessionName parent =
+        SessionName.ofProjectLocationAgentSessionName(
+            "[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+    SessionEntityType sessionEntityType = SessionEntityType.newBuilder().build();
+
+    SessionEntityType actualResponse = client.createSessionEntityType(parent, sessionEntityType);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockSessionEntityTypes.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    CreateSessionEntityTypeRequest actualRequest =
+        (CreateSessionEntityTypeRequest) actualRequests.get(0);
+
+    Assert.assertEquals(parent, SessionName.parse(actualRequest.getParent()));
+    Assert.assertEquals(sessionEntityType, actualRequest.getSessionEntityType());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void createSessionEntityTypeExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockSessionEntityTypes.addException(exception);
+
+    try {
+      SessionName parent =
+          SessionName.ofProjectLocationAgentSessionName(
+              "[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+      SessionEntityType sessionEntityType = SessionEntityType.newBuilder().build();
+
+      client.createSessionEntityType(parent, sessionEntityType);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void updateSessionEntityTypeTest() {
+    SessionEntityTypeName name =
+        SessionEntityTypeName.ofProjectLocationAgentSessionEntityTypeName(
+            "[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]", "[ENTITY_TYPE]");
+    SessionEntityType expectedResponse =
+        SessionEntityType.newBuilder().setName(name.toString()).build();
+    mockSessionEntityTypes.addResponse(expectedResponse);
+
+    SessionEntityType sessionEntityType = SessionEntityType.newBuilder().build();
+    FieldMask updateMask = FieldMask.newBuilder().build();
+
+    SessionEntityType actualResponse =
+        client.updateSessionEntityType(sessionEntityType, updateMask);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockSessionEntityTypes.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    UpdateSessionEntityTypeRequest actualRequest =
+        (UpdateSessionEntityTypeRequest) actualRequests.get(0);
+
+    Assert.assertEquals(sessionEntityType, actualRequest.getSessionEntityType());
+    Assert.assertEquals(updateMask, actualRequest.getUpdateMask());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void updateSessionEntityTypeExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockSessionEntityTypes.addException(exception);
+
+    try {
+      SessionEntityType sessionEntityType = SessionEntityType.newBuilder().build();
+      FieldMask updateMask = FieldMask.newBuilder().build();
+
+      client.updateSessionEntityType(sessionEntityType, updateMask);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void deleteSessionEntityTypeTest() {
+    Empty expectedResponse = Empty.newBuilder().build();
+    mockSessionEntityTypes.addResponse(expectedResponse);
+
+    SessionEntityTypeName name =
+        SessionEntityTypeName.ofProjectLocationAgentSessionEntityTypeName(
+            "[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]", "[ENTITY_TYPE]");
+
+    client.deleteSessionEntityType(name);
+
+    List<AbstractMessage> actualRequests = mockSessionEntityTypes.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    DeleteSessionEntityTypeRequest actualRequest =
+        (DeleteSessionEntityTypeRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, SessionEntityTypeName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void deleteSessionEntityTypeExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockSessionEntityTypes.addException(exception);
+
+    try {
+      SessionEntityTypeName name =
+          SessionEntityTypeName.ofProjectLocationAgentSessionEntityTypeName(
+              "[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]", "[ENTITY_TYPE]");
+
+      client.deleteSessionEntityType(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/SessionsClientTest.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/SessionsClientTest.java
new file mode 100644
index 000000000..b50df1371
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/SessionsClientTest.java
@@ -0,0 +1,327 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.gax.core.NoCredentialsProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.testing.LocalChannelProvider;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.api.gax.grpc.testing.MockServiceHelper;
+import com.google.api.gax.grpc.testing.MockStreamObserver;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ApiStreamObserver;
+import com.google.api.gax.rpc.BidiStreamingCallable;
+import com.google.api.gax.rpc.InvalidArgumentException;
+import com.google.api.gax.rpc.StatusCode;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.ByteString;
+import io.grpc.Status;
+import io.grpc.StatusRuntimeException;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+import java.util.UUID;
+import java.util.concurrent.ExecutionException;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+@javax.annotation.Generated("by GAPIC")
+public class SessionsClientTest {
+  private static MockPages mockPages;
+  private static MockFlows mockFlows;
+  private static MockAgents mockAgents;
+  private static MockEntityTypes mockEntityTypes;
+  private static MockEnvironments mockEnvironments;
+  private static MockIntents mockIntents;
+  private static MockSessionEntityTypes mockSessionEntityTypes;
+  private static MockSessions mockSessions;
+  private static MockTransitionRouteGroups mockTransitionRouteGroups;
+  private static MockVersions mockVersions;
+  private static MockWebhooks mockWebhooks;
+  private static MockServiceHelper serviceHelper;
+  private SessionsClient client;
+  private LocalChannelProvider channelProvider;
+
+  @BeforeClass
+  public static void startStaticServer() {
+    mockPages = new MockPages();
+    mockFlows = new MockFlows();
+    mockAgents = new MockAgents();
+    mockEntityTypes = new MockEntityTypes();
+    mockEnvironments = new MockEnvironments();
+    mockIntents = new MockIntents();
+    mockSessionEntityTypes = new MockSessionEntityTypes();
+    mockSessions = new MockSessions();
+    mockTransitionRouteGroups = new MockTransitionRouteGroups();
+    mockVersions = new MockVersions();
+    mockWebhooks = new MockWebhooks();
+    serviceHelper =
+        new MockServiceHelper(
+            UUID.randomUUID().toString(),
+            Arrays.<MockGrpcService>asList(
+                mockPages,
+                mockFlows,
+                mockAgents,
+                mockEntityTypes,
+                mockEnvironments,
+                mockIntents,
+                mockSessionEntityTypes,
+                mockSessions,
+                mockTransitionRouteGroups,
+                mockVersions,
+                mockWebhooks));
+    serviceHelper.start();
+  }
+
+  @AfterClass
+  public static void stopServer() {
+    serviceHelper.stop();
+  }
+
+  @Before
+  public void setUp() throws IOException {
+    serviceHelper.reset();
+    channelProvider = serviceHelper.createChannelProvider();
+    SessionsSettings settings =
+        SessionsSettings.newBuilder()
+            .setTransportChannelProvider(channelProvider)
+            .setCredentialsProvider(NoCredentialsProvider.create())
+            .build();
+    client = SessionsClient.create(settings);
+  }
+
+  @After
+  public void tearDown() throws Exception {
+    client.close();
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void detectIntentTest() {
+    String responseId = "responseId1847552473";
+    ByteString outputAudio = ByteString.copyFromUtf8("24");
+    DetectIntentResponse expectedResponse =
+        DetectIntentResponse.newBuilder()
+            .setResponseId(responseId)
+            .setOutputAudio(outputAudio)
+            .build();
+    mockSessions.addResponse(expectedResponse);
+
+    SessionName session =
+        SessionName.ofProjectLocationAgentSessionName(
+            "[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+    QueryInput queryInput = QueryInput.newBuilder().build();
+    DetectIntentRequest request =
+        DetectIntentRequest.newBuilder()
+            .setSession(session.toString())
+            .setQueryInput(queryInput)
+            .build();
+
+    DetectIntentResponse actualResponse = client.detectIntent(request);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockSessions.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    DetectIntentRequest actualRequest = (DetectIntentRequest) actualRequests.get(0);
+
+    Assert.assertEquals(session, SessionName.parse(actualRequest.getSession()));
+    Assert.assertEquals(queryInput, actualRequest.getQueryInput());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void detectIntentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockSessions.addException(exception);
+
+    try {
+      SessionName session =
+          SessionName.ofProjectLocationAgentSessionName(
+              "[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+      QueryInput queryInput = QueryInput.newBuilder().build();
+      DetectIntentRequest request =
+          DetectIntentRequest.newBuilder()
+              .setSession(session.toString())
+              .setQueryInput(queryInput)
+              .build();
+
+      client.detectIntent(request);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void streamingDetectIntentTest() throws Exception {
+    StreamingDetectIntentResponse expectedResponse =
+        StreamingDetectIntentResponse.newBuilder().build();
+    mockSessions.addResponse(expectedResponse);
+    QueryInput queryInput = QueryInput.newBuilder().build();
+    StreamingDetectIntentRequest request =
+        StreamingDetectIntentRequest.newBuilder().setQueryInput(queryInput).build();
+
+    MockStreamObserver<StreamingDetectIntentResponse> responseObserver = new MockStreamObserver<>();
+
+    BidiStreamingCallable<StreamingDetectIntentRequest, StreamingDetectIntentResponse> callable =
+        client.streamingDetectIntentCallable();
+    ApiStreamObserver<StreamingDetectIntentRequest> requestObserver =
+        callable.bidiStreamingCall(responseObserver);
+
+    requestObserver.onNext(request);
+    requestObserver.onCompleted();
+
+    List<StreamingDetectIntentResponse> actualResponses = responseObserver.future().get();
+    Assert.assertEquals(1, actualResponses.size());
+    Assert.assertEquals(expectedResponse, actualResponses.get(0));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void streamingDetectIntentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockSessions.addException(exception);
+    QueryInput queryInput = QueryInput.newBuilder().build();
+    StreamingDetectIntentRequest request =
+        StreamingDetectIntentRequest.newBuilder().setQueryInput(queryInput).build();
+
+    MockStreamObserver<StreamingDetectIntentResponse> responseObserver = new MockStreamObserver<>();
+
+    BidiStreamingCallable<StreamingDetectIntentRequest, StreamingDetectIntentResponse> callable =
+        client.streamingDetectIntentCallable();
+    ApiStreamObserver<StreamingDetectIntentRequest> requestObserver =
+        callable.bidiStreamingCall(responseObserver);
+
+    requestObserver.onNext(request);
+
+    try {
+      List<StreamingDetectIntentResponse> actualResponses = responseObserver.future().get();
+      Assert.fail("No exception thrown");
+    } catch (ExecutionException e) {
+      Assert.assertTrue(e.getCause() instanceof InvalidArgumentException);
+      InvalidArgumentException apiException = (InvalidArgumentException) e.getCause();
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void matchIntentTest() {
+    String text = "text3556653";
+    MatchIntentResponse expectedResponse = MatchIntentResponse.newBuilder().setText(text).build();
+    mockSessions.addResponse(expectedResponse);
+
+    SessionName session =
+        SessionName.ofProjectLocationAgentSessionName(
+            "[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+    QueryInput queryInput = QueryInput.newBuilder().build();
+    MatchIntentRequest request =
+        MatchIntentRequest.newBuilder()
+            .setSession(session.toString())
+            .setQueryInput(queryInput)
+            .build();
+
+    MatchIntentResponse actualResponse = client.matchIntent(request);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockSessions.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    MatchIntentRequest actualRequest = (MatchIntentRequest) actualRequests.get(0);
+
+    Assert.assertEquals(session, SessionName.parse(actualRequest.getSession()));
+    Assert.assertEquals(queryInput, actualRequest.getQueryInput());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void matchIntentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockSessions.addException(exception);
+
+    try {
+      SessionName session =
+          SessionName.ofProjectLocationAgentSessionName(
+              "[PROJECT]", "[LOCATION]", "[AGENT]", "[SESSION]");
+      QueryInput queryInput = QueryInput.newBuilder().build();
+      MatchIntentRequest request =
+          MatchIntentRequest.newBuilder()
+              .setSession(session.toString())
+              .setQueryInput(queryInput)
+              .build();
+
+      client.matchIntent(request);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void fulfillIntentTest() {
+    String responseId = "responseId1847552473";
+    ByteString outputAudio = ByteString.copyFromUtf8("24");
+    FulfillIntentResponse expectedResponse =
+        FulfillIntentResponse.newBuilder()
+            .setResponseId(responseId)
+            .setOutputAudio(outputAudio)
+            .build();
+    mockSessions.addResponse(expectedResponse);
+
+    FulfillIntentRequest request = FulfillIntentRequest.newBuilder().build();
+
+    FulfillIntentResponse actualResponse = client.fulfillIntent(request);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockSessions.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    FulfillIntentRequest actualRequest = (FulfillIntentRequest) actualRequests.get(0);
+
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void fulfillIntentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockSessions.addException(exception);
+
+    try {
+      FulfillIntentRequest request = FulfillIntentRequest.newBuilder().build();
+
+      client.fulfillIntent(request);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroupsClientTest.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroupsClientTest.java
new file mode 100644
index 000000000..ae3224fde
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroupsClientTest.java
@@ -0,0 +1,358 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupsClient.ListTransitionRouteGroupsPagedResponse;
+
+import com.google.api.gax.core.NoCredentialsProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.testing.LocalChannelProvider;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.api.gax.grpc.testing.MockServiceHelper;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.InvalidArgumentException;
+import com.google.common.collect.Lists;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import io.grpc.Status;
+import io.grpc.StatusRuntimeException;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+import java.util.UUID;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+@javax.annotation.Generated("by GAPIC")
+public class TransitionRouteGroupsClientTest {
+  private static MockPages mockPages;
+  private static MockFlows mockFlows;
+  private static MockAgents mockAgents;
+  private static MockEntityTypes mockEntityTypes;
+  private static MockEnvironments mockEnvironments;
+  private static MockIntents mockIntents;
+  private static MockSessionEntityTypes mockSessionEntityTypes;
+  private static MockSessions mockSessions;
+  private static MockTransitionRouteGroups mockTransitionRouteGroups;
+  private static MockVersions mockVersions;
+  private static MockWebhooks mockWebhooks;
+  private static MockServiceHelper serviceHelper;
+  private TransitionRouteGroupsClient client;
+  private LocalChannelProvider channelProvider;
+
+  @BeforeClass
+  public static void startStaticServer() {
+    mockPages = new MockPages();
+    mockFlows = new MockFlows();
+    mockAgents = new MockAgents();
+    mockEntityTypes = new MockEntityTypes();
+    mockEnvironments = new MockEnvironments();
+    mockIntents = new MockIntents();
+    mockSessionEntityTypes = new MockSessionEntityTypes();
+    mockSessions = new MockSessions();
+    mockTransitionRouteGroups = new MockTransitionRouteGroups();
+    mockVersions = new MockVersions();
+    mockWebhooks = new MockWebhooks();
+    serviceHelper =
+        new MockServiceHelper(
+            UUID.randomUUID().toString(),
+            Arrays.<MockGrpcService>asList(
+                mockPages,
+                mockFlows,
+                mockAgents,
+                mockEntityTypes,
+                mockEnvironments,
+                mockIntents,
+                mockSessionEntityTypes,
+                mockSessions,
+                mockTransitionRouteGroups,
+                mockVersions,
+                mockWebhooks));
+    serviceHelper.start();
+  }
+
+  @AfterClass
+  public static void stopServer() {
+    serviceHelper.stop();
+  }
+
+  @Before
+  public void setUp() throws IOException {
+    serviceHelper.reset();
+    channelProvider = serviceHelper.createChannelProvider();
+    TransitionRouteGroupsSettings settings =
+        TransitionRouteGroupsSettings.newBuilder()
+            .setTransportChannelProvider(channelProvider)
+            .setCredentialsProvider(NoCredentialsProvider.create())
+            .build();
+    client = TransitionRouteGroupsClient.create(settings);
+  }
+
+  @After
+  public void tearDown() throws Exception {
+    client.close();
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void listTransitionRouteGroupsTest() {
+    String nextPageToken = "";
+    TransitionRouteGroup transitionRouteGroupsElement = TransitionRouteGroup.newBuilder().build();
+    List<TransitionRouteGroup> transitionRouteGroups = Arrays.asList(transitionRouteGroupsElement);
+    ListTransitionRouteGroupsResponse expectedResponse =
+        ListTransitionRouteGroupsResponse.newBuilder()
+            .setNextPageToken(nextPageToken)
+            .addAllTransitionRouteGroups(transitionRouteGroups)
+            .build();
+    mockTransitionRouteGroups.addResponse(expectedResponse);
+
+    FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+
+    ListTransitionRouteGroupsPagedResponse pagedListResponse =
+        client.listTransitionRouteGroups(parent);
+
+    List<TransitionRouteGroup> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getTransitionRouteGroupsList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockTransitionRouteGroups.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListTransitionRouteGroupsRequest actualRequest =
+        (ListTransitionRouteGroupsRequest) actualRequests.get(0);
+
+    Assert.assertEquals(parent, FlowName.parse(actualRequest.getParent()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void listTransitionRouteGroupsExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockTransitionRouteGroups.addException(exception);
+
+    try {
+      FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+
+      client.listTransitionRouteGroups(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void getTransitionRouteGroupTest() {
+    TransitionRouteGroupName name2 =
+        TransitionRouteGroupName.of(
+            "[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[TRANSITION_ROUTE_GROUP]");
+    String displayName = "displayName1615086568";
+    TransitionRouteGroup expectedResponse =
+        TransitionRouteGroup.newBuilder()
+            .setName(name2.toString())
+            .setDisplayName(displayName)
+            .build();
+    mockTransitionRouteGroups.addResponse(expectedResponse);
+
+    TransitionRouteGroupName name =
+        TransitionRouteGroupName.of(
+            "[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[TRANSITION_ROUTE_GROUP]");
+
+    TransitionRouteGroup actualResponse = client.getTransitionRouteGroup(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTransitionRouteGroups.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetTransitionRouteGroupRequest actualRequest =
+        (GetTransitionRouteGroupRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, TransitionRouteGroupName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void getTransitionRouteGroupExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockTransitionRouteGroups.addException(exception);
+
+    try {
+      TransitionRouteGroupName name =
+          TransitionRouteGroupName.of(
+              "[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[TRANSITION_ROUTE_GROUP]");
+
+      client.getTransitionRouteGroup(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void createTransitionRouteGroupTest() {
+    TransitionRouteGroupName name =
+        TransitionRouteGroupName.of(
+            "[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[TRANSITION_ROUTE_GROUP]");
+    String displayName = "displayName1615086568";
+    TransitionRouteGroup expectedResponse =
+        TransitionRouteGroup.newBuilder()
+            .setName(name.toString())
+            .setDisplayName(displayName)
+            .build();
+    mockTransitionRouteGroups.addResponse(expectedResponse);
+
+    FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+    TransitionRouteGroup transitionRouteGroup = TransitionRouteGroup.newBuilder().build();
+
+    TransitionRouteGroup actualResponse =
+        client.createTransitionRouteGroup(parent, transitionRouteGroup);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTransitionRouteGroups.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    CreateTransitionRouteGroupRequest actualRequest =
+        (CreateTransitionRouteGroupRequest) actualRequests.get(0);
+
+    Assert.assertEquals(parent, FlowName.parse(actualRequest.getParent()));
+    Assert.assertEquals(transitionRouteGroup, actualRequest.getTransitionRouteGroup());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void createTransitionRouteGroupExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockTransitionRouteGroups.addException(exception);
+
+    try {
+      FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+      TransitionRouteGroup transitionRouteGroup = TransitionRouteGroup.newBuilder().build();
+
+      client.createTransitionRouteGroup(parent, transitionRouteGroup);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void updateTransitionRouteGroupTest() {
+    TransitionRouteGroupName name =
+        TransitionRouteGroupName.of(
+            "[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[TRANSITION_ROUTE_GROUP]");
+    String displayName = "displayName1615086568";
+    TransitionRouteGroup expectedResponse =
+        TransitionRouteGroup.newBuilder()
+            .setName(name.toString())
+            .setDisplayName(displayName)
+            .build();
+    mockTransitionRouteGroups.addResponse(expectedResponse);
+
+    TransitionRouteGroup transitionRouteGroup = TransitionRouteGroup.newBuilder().build();
+    FieldMask updateMask = FieldMask.newBuilder().build();
+
+    TransitionRouteGroup actualResponse =
+        client.updateTransitionRouteGroup(transitionRouteGroup, updateMask);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTransitionRouteGroups.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    UpdateTransitionRouteGroupRequest actualRequest =
+        (UpdateTransitionRouteGroupRequest) actualRequests.get(0);
+
+    Assert.assertEquals(transitionRouteGroup, actualRequest.getTransitionRouteGroup());
+    Assert.assertEquals(updateMask, actualRequest.getUpdateMask());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void updateTransitionRouteGroupExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockTransitionRouteGroups.addException(exception);
+
+    try {
+      TransitionRouteGroup transitionRouteGroup = TransitionRouteGroup.newBuilder().build();
+      FieldMask updateMask = FieldMask.newBuilder().build();
+
+      client.updateTransitionRouteGroup(transitionRouteGroup, updateMask);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void deleteTransitionRouteGroupTest() {
+    Empty expectedResponse = Empty.newBuilder().build();
+    mockTransitionRouteGroups.addResponse(expectedResponse);
+
+    TransitionRouteGroupName name =
+        TransitionRouteGroupName.of(
+            "[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[TRANSITION_ROUTE_GROUP]");
+
+    client.deleteTransitionRouteGroup(name);
+
+    List<AbstractMessage> actualRequests = mockTransitionRouteGroups.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    DeleteTransitionRouteGroupRequest actualRequest =
+        (DeleteTransitionRouteGroupRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, TransitionRouteGroupName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void deleteTransitionRouteGroupExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockTransitionRouteGroups.addException(exception);
+
+    try {
+      TransitionRouteGroupName name =
+          TransitionRouteGroupName.of(
+              "[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[TRANSITION_ROUTE_GROUP]");
+
+      client.deleteTransitionRouteGroup(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/VersionsClientTest.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/VersionsClientTest.java
new file mode 100644
index 000000000..46f74f9cc
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/VersionsClientTest.java
@@ -0,0 +1,403 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.VersionsClient.ListVersionsPagedResponse;
+
+import com.google.api.gax.core.NoCredentialsProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.testing.LocalChannelProvider;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.api.gax.grpc.testing.MockServiceHelper;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.InvalidArgumentException;
+import com.google.api.gax.rpc.StatusCode;
+import com.google.common.collect.Lists;
+import com.google.longrunning.Operation;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Any;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import io.grpc.Status;
+import io.grpc.StatusRuntimeException;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+import java.util.UUID;
+import java.util.concurrent.ExecutionException;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+@javax.annotation.Generated("by GAPIC")
+public class VersionsClientTest {
+  private static MockPages mockPages;
+  private static MockFlows mockFlows;
+  private static MockAgents mockAgents;
+  private static MockEntityTypes mockEntityTypes;
+  private static MockEnvironments mockEnvironments;
+  private static MockIntents mockIntents;
+  private static MockSessionEntityTypes mockSessionEntityTypes;
+  private static MockSessions mockSessions;
+  private static MockTransitionRouteGroups mockTransitionRouteGroups;
+  private static MockVersions mockVersions;
+  private static MockWebhooks mockWebhooks;
+  private static MockServiceHelper serviceHelper;
+  private VersionsClient client;
+  private LocalChannelProvider channelProvider;
+
+  @BeforeClass
+  public static void startStaticServer() {
+    mockPages = new MockPages();
+    mockFlows = new MockFlows();
+    mockAgents = new MockAgents();
+    mockEntityTypes = new MockEntityTypes();
+    mockEnvironments = new MockEnvironments();
+    mockIntents = new MockIntents();
+    mockSessionEntityTypes = new MockSessionEntityTypes();
+    mockSessions = new MockSessions();
+    mockTransitionRouteGroups = new MockTransitionRouteGroups();
+    mockVersions = new MockVersions();
+    mockWebhooks = new MockWebhooks();
+    serviceHelper =
+        new MockServiceHelper(
+            UUID.randomUUID().toString(),
+            Arrays.<MockGrpcService>asList(
+                mockPages,
+                mockFlows,
+                mockAgents,
+                mockEntityTypes,
+                mockEnvironments,
+                mockIntents,
+                mockSessionEntityTypes,
+                mockSessions,
+                mockTransitionRouteGroups,
+                mockVersions,
+                mockWebhooks));
+    serviceHelper.start();
+  }
+
+  @AfterClass
+  public static void stopServer() {
+    serviceHelper.stop();
+  }
+
+  @Before
+  public void setUp() throws IOException {
+    serviceHelper.reset();
+    channelProvider = serviceHelper.createChannelProvider();
+    VersionsSettings settings =
+        VersionsSettings.newBuilder()
+            .setTransportChannelProvider(channelProvider)
+            .setCredentialsProvider(NoCredentialsProvider.create())
+            .build();
+    client = VersionsClient.create(settings);
+  }
+
+  @After
+  public void tearDown() throws Exception {
+    client.close();
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void listVersionsTest() {
+    String nextPageToken = "";
+    Version versionsElement = Version.newBuilder().build();
+    List<Version> versions = Arrays.asList(versionsElement);
+    ListVersionsResponse expectedResponse =
+        ListVersionsResponse.newBuilder()
+            .setNextPageToken(nextPageToken)
+            .addAllVersions(versions)
+            .build();
+    mockVersions.addResponse(expectedResponse);
+
+    FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+
+    ListVersionsPagedResponse pagedListResponse = client.listVersions(parent);
+
+    List<Version> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getVersionsList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockVersions.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListVersionsRequest actualRequest = (ListVersionsRequest) actualRequests.get(0);
+
+    Assert.assertEquals(parent, FlowName.parse(actualRequest.getParent()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void listVersionsExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockVersions.addException(exception);
+
+    try {
+      FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+
+      client.listVersions(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void getVersionTest() {
+    VersionName name2 = VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+    String displayName = "displayName1615086568";
+    String description = "description-1724546052";
+    Version expectedResponse =
+        Version.newBuilder()
+            .setName(name2.toString())
+            .setDisplayName(displayName)
+            .setDescription(description)
+            .build();
+    mockVersions.addResponse(expectedResponse);
+
+    VersionName name = VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+
+    Version actualResponse = client.getVersion(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockVersions.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetVersionRequest actualRequest = (GetVersionRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, VersionName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void getVersionExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockVersions.addException(exception);
+
+    try {
+      VersionName name =
+          VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+
+      client.getVersion(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void createVersionTest() throws Exception {
+    VersionName name = VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+    String displayName = "displayName1615086568";
+    String description = "description-1724546052";
+    Version expectedResponse =
+        Version.newBuilder()
+            .setName(name.toString())
+            .setDisplayName(displayName)
+            .setDescription(description)
+            .build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("createVersionTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockVersions.addResponse(resultOperation);
+
+    FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+    Version version = Version.newBuilder().build();
+
+    Version actualResponse = client.createVersionAsync(parent, version).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockVersions.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    CreateVersionRequest actualRequest = (CreateVersionRequest) actualRequests.get(0);
+
+    Assert.assertEquals(parent, FlowName.parse(actualRequest.getParent()));
+    Assert.assertEquals(version, actualRequest.getVersion());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void createVersionExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockVersions.addException(exception);
+
+    try {
+      FlowName parent = FlowName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]");
+      Version version = Version.newBuilder().build();
+
+      client.createVersionAsync(parent, version).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = (InvalidArgumentException) e.getCause();
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void updateVersionTest() {
+    VersionName name = VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+    String displayName = "displayName1615086568";
+    String description = "description-1724546052";
+    Version expectedResponse =
+        Version.newBuilder()
+            .setName(name.toString())
+            .setDisplayName(displayName)
+            .setDescription(description)
+            .build();
+    mockVersions.addResponse(expectedResponse);
+
+    Version version = Version.newBuilder().build();
+    FieldMask updateMask = FieldMask.newBuilder().build();
+
+    Version actualResponse = client.updateVersion(version, updateMask);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockVersions.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    UpdateVersionRequest actualRequest = (UpdateVersionRequest) actualRequests.get(0);
+
+    Assert.assertEquals(version, actualRequest.getVersion());
+    Assert.assertEquals(updateMask, actualRequest.getUpdateMask());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void updateVersionExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockVersions.addException(exception);
+
+    try {
+      Version version = Version.newBuilder().build();
+      FieldMask updateMask = FieldMask.newBuilder().build();
+
+      client.updateVersion(version, updateMask);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void deleteVersionTest() {
+    Empty expectedResponse = Empty.newBuilder().build();
+    mockVersions.addResponse(expectedResponse);
+
+    VersionName name = VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+
+    client.deleteVersion(name);
+
+    List<AbstractMessage> actualRequests = mockVersions.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    DeleteVersionRequest actualRequest = (DeleteVersionRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, VersionName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void deleteVersionExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockVersions.addException(exception);
+
+    try {
+      VersionName name =
+          VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+
+      client.deleteVersion(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void loadVersionTest() throws Exception {
+    Empty expectedResponse = Empty.newBuilder().build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("loadVersionTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockVersions.addResponse(resultOperation);
+
+    VersionName name = VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+
+    Empty actualResponse = client.loadVersionAsync(name).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockVersions.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    LoadVersionRequest actualRequest = (LoadVersionRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, VersionName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void loadVersionExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockVersions.addException(exception);
+
+    try {
+      VersionName name =
+          VersionName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[FLOW]", "[VERSION]");
+
+      client.loadVersionAsync(name).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = (InvalidArgumentException) e.getCause();
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+}
diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/WebhooksClientTest.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/WebhooksClientTest.java
new file mode 100644
index 000000000..23110d933
--- /dev/null
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/WebhooksClientTest.java
@@ -0,0 +1,342 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static com.google.cloud.dialogflow.cx.v3beta1.WebhooksClient.ListWebhooksPagedResponse;
+
+import com.google.api.gax.core.NoCredentialsProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.testing.LocalChannelProvider;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.api.gax.grpc.testing.MockServiceHelper;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.InvalidArgumentException;
+import com.google.common.collect.Lists;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import io.grpc.Status;
+import io.grpc.StatusRuntimeException;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+import java.util.UUID;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+@javax.annotation.Generated("by GAPIC")
+public class WebhooksClientTest {
+  private static MockPages mockPages;
+  private static MockFlows mockFlows;
+  private static MockAgents mockAgents;
+  private static MockEntityTypes mockEntityTypes;
+  private static MockEnvironments mockEnvironments;
+  private static MockIntents mockIntents;
+  private static MockSessionEntityTypes mockSessionEntityTypes;
+  private static MockSessions mockSessions;
+  private static MockTransitionRouteGroups mockTransitionRouteGroups;
+  private static MockVersions mockVersions;
+  private static MockWebhooks mockWebhooks;
+  private static MockServiceHelper serviceHelper;
+  private WebhooksClient client;
+  private LocalChannelProvider channelProvider;
+
+  @BeforeClass
+  public static void startStaticServer() {
+    mockPages = new MockPages();
+    mockFlows = new MockFlows();
+    mockAgents = new MockAgents();
+    mockEntityTypes = new MockEntityTypes();
+    mockEnvironments = new MockEnvironments();
+    mockIntents = new MockIntents();
+    mockSessionEntityTypes = new MockSessionEntityTypes();
+    mockSessions = new MockSessions();
+    mockTransitionRouteGroups = new MockTransitionRouteGroups();
+    mockVersions = new MockVersions();
+    mockWebhooks = new MockWebhooks();
+    serviceHelper =
+        new MockServiceHelper(
+            UUID.randomUUID().toString(),
+            Arrays.<MockGrpcService>asList(
+                mockPages,
+                mockFlows,
+                mockAgents,
+                mockEntityTypes,
+                mockEnvironments,
+                mockIntents,
+                mockSessionEntityTypes,
+                mockSessions,
+                mockTransitionRouteGroups,
+                mockVersions,
+                mockWebhooks));
+    serviceHelper.start();
+  }
+
+  @AfterClass
+  public static void stopServer() {
+    serviceHelper.stop();
+  }
+
+  @Before
+  public void setUp() throws IOException {
+    serviceHelper.reset();
+    channelProvider = serviceHelper.createChannelProvider();
+    WebhooksSettings settings =
+        WebhooksSettings.newBuilder()
+            .setTransportChannelProvider(channelProvider)
+            .setCredentialsProvider(NoCredentialsProvider.create())
+            .build();
+    client = WebhooksClient.create(settings);
+  }
+
+  @After
+  public void tearDown() throws Exception {
+    client.close();
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void listWebhooksTest() {
+    String nextPageToken = "";
+    Webhook webhooksElement = Webhook.newBuilder().build();
+    List<Webhook> webhooks = Arrays.asList(webhooksElement);
+    ListWebhooksResponse expectedResponse =
+        ListWebhooksResponse.newBuilder()
+            .setNextPageToken(nextPageToken)
+            .addAllWebhooks(webhooks)
+            .build();
+    mockWebhooks.addResponse(expectedResponse);
+
+    AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+
+    ListWebhooksPagedResponse pagedListResponse = client.listWebhooks(parent);
+
+    List<Webhook> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getWebhooksList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockWebhooks.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListWebhooksRequest actualRequest = (ListWebhooksRequest) actualRequests.get(0);
+
+    Assert.assertEquals(parent, AgentName.parse(actualRequest.getParent()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void listWebhooksExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockWebhooks.addException(exception);
+
+    try {
+      AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+
+      client.listWebhooks(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void getWebhookTest() {
+    WebhookName name2 = WebhookName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[WEBHOOK]");
+    String displayName = "displayName1615086568";
+    boolean disabled = true;
+    Webhook expectedResponse =
+        Webhook.newBuilder()
+            .setName(name2.toString())
+            .setDisplayName(displayName)
+            .setDisabled(disabled)
+            .build();
+    mockWebhooks.addResponse(expectedResponse);
+
+    WebhookName name = WebhookName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[WEBHOOK]");
+
+    Webhook actualResponse = client.getWebhook(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockWebhooks.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetWebhookRequest actualRequest = (GetWebhookRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, WebhookName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void getWebhookExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockWebhooks.addException(exception);
+
+    try {
+      WebhookName name = WebhookName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[WEBHOOK]");
+
+      client.getWebhook(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void createWebhookTest() {
+    WebhookName name = WebhookName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[WEBHOOK]");
+    String displayName = "displayName1615086568";
+    boolean disabled = true;
+    Webhook expectedResponse =
+        Webhook.newBuilder()
+            .setName(name.toString())
+            .setDisplayName(displayName)
+            .setDisabled(disabled)
+            .build();
+    mockWebhooks.addResponse(expectedResponse);
+
+    AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+    Webhook webhook = Webhook.newBuilder().build();
+
+    Webhook actualResponse = client.createWebhook(parent, webhook);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockWebhooks.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    CreateWebhookRequest actualRequest = (CreateWebhookRequest) actualRequests.get(0);
+
+    Assert.assertEquals(parent, AgentName.parse(actualRequest.getParent()));
+    Assert.assertEquals(webhook, actualRequest.getWebhook());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void createWebhookExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockWebhooks.addException(exception);
+
+    try {
+      AgentName parent = AgentName.of("[PROJECT]", "[LOCATION]", "[AGENT]");
+      Webhook webhook = Webhook.newBuilder().build();
+
+      client.createWebhook(parent, webhook);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void updateWebhookTest() {
+    WebhookName name = WebhookName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[WEBHOOK]");
+    String displayName = "displayName1615086568";
+    boolean disabled = true;
+    Webhook expectedResponse =
+        Webhook.newBuilder()
+            .setName(name.toString())
+            .setDisplayName(displayName)
+            .setDisabled(disabled)
+            .build();
+    mockWebhooks.addResponse(expectedResponse);
+
+    Webhook webhook = Webhook.newBuilder().build();
+    FieldMask updateMask = FieldMask.newBuilder().build();
+
+    Webhook actualResponse = client.updateWebhook(webhook, updateMask);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockWebhooks.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    UpdateWebhookRequest actualRequest = (UpdateWebhookRequest) actualRequests.get(0);
+
+    Assert.assertEquals(webhook, actualRequest.getWebhook());
+    Assert.assertEquals(updateMask, actualRequest.getUpdateMask());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void updateWebhookExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockWebhooks.addException(exception);
+
+    try {
+      Webhook webhook = Webhook.newBuilder().build();
+      FieldMask updateMask = FieldMask.newBuilder().build();
+
+      client.updateWebhook(webhook, updateMask);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void deleteWebhookTest() {
+    Empty expectedResponse = Empty.newBuilder().build();
+    mockWebhooks.addResponse(expectedResponse);
+
+    WebhookName name = WebhookName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[WEBHOOK]");
+
+    client.deleteWebhook(name);
+
+    List<AbstractMessage> actualRequests = mockWebhooks.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    DeleteWebhookRequest actualRequest = (DeleteWebhookRequest) actualRequests.get(0);
+
+    Assert.assertEquals(name, WebhookName.parse(actualRequest.getName()));
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  @SuppressWarnings("all")
+  public void deleteWebhookExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
+    mockWebhooks.addException(exception);
+
+    try {
+      WebhookName name = WebhookName.of("[PROJECT]", "[LOCATION]", "[AGENT]", "[WEBHOOK]");
+
+      client.deleteWebhook(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception
+    }
+  }
+}
diff --git a/grpc-google-cloud-dialogflow-cx-v3beta1/pom.xml b/grpc-google-cloud-dialogflow-cx-v3beta1/pom.xml
new file mode 100644
index 000000000..a7696fe4c
--- /dev/null
+++ b/grpc-google-cloud-dialogflow-cx-v3beta1/pom.xml
@@ -0,0 +1,65 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.google.api.grpc</groupId>
+  <artifactId>grpc-google-cloud-dialogflow-cx-v3beta1</artifactId>
+  <version>0.0.1-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-dialogflow-cx-v3beta1:current} -->
+  <name>grpc-google-cloud-dialogflow-cx-v3beta1</name>
+  <description>GRPC library for grpc-google-cloud-dialogflow-cx-v3beta1</description>
+  <parent>
+    <groupId>com.google.cloud</groupId>
+    <artifactId>google-cloud-dialogflow-cx-parent</artifactId>
+    <version>0.0.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow-cx:current} -->
+  </parent>
+  <dependencies>
+    <dependency>
+      <groupId>io.grpc</groupId>
+      <artifactId>grpc-api</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>io.grpc</groupId>
+      <artifactId>grpc-stub</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>io.grpc</groupId>
+      <artifactId>grpc-protobuf</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.google.protobuf</groupId>
+      <artifactId>protobuf-java</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.google.api.grpc</groupId>
+      <artifactId>proto-google-cloud-dialogflow-cx-v3beta1</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.google.guava</groupId>
+      <artifactId>guava</artifactId>
+    </dependency>
+  </dependencies>
+
+  <profiles>
+    <profile>
+      <id>java9</id>
+      <activation>
+        <jdk>[9,)</jdk>
+      </activation>
+      <dependencies>
+        <dependency>
+          <groupId>javax.annotation</groupId>
+          <artifactId>javax.annotation-api</artifactId>
+        </dependency>
+      </dependencies>
+    </profile>
+  </profiles>
+
+  <build>
+    <plugins>
+      <plugin>
+          <groupId>org.codehaus.mojo</groupId>
+          <artifactId>flatten-maven-plugin</artifactId>
+        </plugin>
+    </plugins>
+  </build>
+</project>
\ No newline at end of file
diff --git a/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentsGrpc.java b/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentsGrpc.java
new file mode 100644
index 000000000..1d8e090e1
--- /dev/null
+++ b/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentsGrpc.java
@@ -0,0 +1,1043 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static io.grpc.MethodDescriptor.generateFullMethodName;
+import static io.grpc.stub.ClientCalls.asyncUnaryCall;
+import static io.grpc.stub.ClientCalls.blockingUnaryCall;
+import static io.grpc.stub.ClientCalls.futureUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall;
+
+/**
+ *
+ *
+ * <pre>
+ * Service for managing [Agents][google.cloud.dialogflow.cx.v3beta1.Agent].
+ * </pre>
+ */
+@javax.annotation.Generated(
+    value = "by gRPC proto compiler",
+    comments = "Source: google/cloud/dialogflow/cx/v3beta1/agent.proto")
+public final class AgentsGrpc {
+
+  private AgentsGrpc() {}
+
+  public static final String SERVICE_NAME = "google.cloud.dialogflow.cx.v3beta1.Agents";
+
+  // Static method descriptors that strictly reflect the proto.
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse>
+      getListAgentsMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "ListAgents",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse>
+      getListAgentsMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse>
+        getListAgentsMethod;
+    if ((getListAgentsMethod = AgentsGrpc.getListAgentsMethod) == null) {
+      synchronized (AgentsGrpc.class) {
+        if ((getListAgentsMethod = AgentsGrpc.getListAgentsMethod) == null) {
+          AgentsGrpc.getListAgentsMethod =
+              getListAgentsMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "ListAgents"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(new AgentsMethodDescriptorSupplier("ListAgents"))
+                      .build();
+        }
+      }
+    }
+    return getListAgentsMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Agent>
+      getGetAgentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GetAgent",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.Agent.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Agent>
+      getGetAgentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.Agent>
+        getGetAgentMethod;
+    if ((getGetAgentMethod = AgentsGrpc.getGetAgentMethod) == null) {
+      synchronized (AgentsGrpc.class) {
+        if ((getGetAgentMethod = AgentsGrpc.getGetAgentMethod) == null) {
+          AgentsGrpc.getGetAgentMethod =
+              getGetAgentMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.Agent>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "GetAgent"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.Agent.getDefaultInstance()))
+                      .setSchemaDescriptor(new AgentsMethodDescriptorSupplier("GetAgent"))
+                      .build();
+        }
+      }
+    }
+    return getGetAgentMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Agent>
+      getCreateAgentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "CreateAgent",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.Agent.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Agent>
+      getCreateAgentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.Agent>
+        getCreateAgentMethod;
+    if ((getCreateAgentMethod = AgentsGrpc.getCreateAgentMethod) == null) {
+      synchronized (AgentsGrpc.class) {
+        if ((getCreateAgentMethod = AgentsGrpc.getCreateAgentMethod) == null) {
+          AgentsGrpc.getCreateAgentMethod =
+              getCreateAgentMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.Agent>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "CreateAgent"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.Agent.getDefaultInstance()))
+                      .setSchemaDescriptor(new AgentsMethodDescriptorSupplier("CreateAgent"))
+                      .build();
+        }
+      }
+    }
+    return getCreateAgentMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Agent>
+      getUpdateAgentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "UpdateAgent",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.Agent.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Agent>
+      getUpdateAgentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.Agent>
+        getUpdateAgentMethod;
+    if ((getUpdateAgentMethod = AgentsGrpc.getUpdateAgentMethod) == null) {
+      synchronized (AgentsGrpc.class) {
+        if ((getUpdateAgentMethod = AgentsGrpc.getUpdateAgentMethod) == null) {
+          AgentsGrpc.getUpdateAgentMethod =
+              getUpdateAgentMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.Agent>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "UpdateAgent"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.Agent.getDefaultInstance()))
+                      .setSchemaDescriptor(new AgentsMethodDescriptorSupplier("UpdateAgent"))
+                      .build();
+        }
+      }
+    }
+    return getUpdateAgentMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest, com.google.protobuf.Empty>
+      getDeleteAgentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "DeleteAgent",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest.class,
+      responseType = com.google.protobuf.Empty.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest, com.google.protobuf.Empty>
+      getDeleteAgentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest, com.google.protobuf.Empty>
+        getDeleteAgentMethod;
+    if ((getDeleteAgentMethod = AgentsGrpc.getDeleteAgentMethod) == null) {
+      synchronized (AgentsGrpc.class) {
+        if ((getDeleteAgentMethod = AgentsGrpc.getDeleteAgentMethod) == null) {
+          AgentsGrpc.getDeleteAgentMethod =
+              getDeleteAgentMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest,
+                          com.google.protobuf.Empty>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "DeleteAgent"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.protobuf.Empty.getDefaultInstance()))
+                      .setSchemaDescriptor(new AgentsMethodDescriptorSupplier("DeleteAgent"))
+                      .build();
+        }
+      }
+    }
+    return getDeleteAgentMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest,
+          com.google.longrunning.Operation>
+      getExportAgentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "ExportAgent",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest.class,
+      responseType = com.google.longrunning.Operation.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest,
+          com.google.longrunning.Operation>
+      getExportAgentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest,
+            com.google.longrunning.Operation>
+        getExportAgentMethod;
+    if ((getExportAgentMethod = AgentsGrpc.getExportAgentMethod) == null) {
+      synchronized (AgentsGrpc.class) {
+        if ((getExportAgentMethod = AgentsGrpc.getExportAgentMethod) == null) {
+          AgentsGrpc.getExportAgentMethod =
+              getExportAgentMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest,
+                          com.google.longrunning.Operation>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "ExportAgent"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.longrunning.Operation.getDefaultInstance()))
+                      .setSchemaDescriptor(new AgentsMethodDescriptorSupplier("ExportAgent"))
+                      .build();
+        }
+      }
+    }
+    return getExportAgentMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest,
+          com.google.longrunning.Operation>
+      getRestoreAgentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "RestoreAgent",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest.class,
+      responseType = com.google.longrunning.Operation.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest,
+          com.google.longrunning.Operation>
+      getRestoreAgentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest,
+            com.google.longrunning.Operation>
+        getRestoreAgentMethod;
+    if ((getRestoreAgentMethod = AgentsGrpc.getRestoreAgentMethod) == null) {
+      synchronized (AgentsGrpc.class) {
+        if ((getRestoreAgentMethod = AgentsGrpc.getRestoreAgentMethod) == null) {
+          AgentsGrpc.getRestoreAgentMethod =
+              getRestoreAgentMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest,
+                          com.google.longrunning.Operation>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "RestoreAgent"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.longrunning.Operation.getDefaultInstance()))
+                      .setSchemaDescriptor(new AgentsMethodDescriptorSupplier("RestoreAgent"))
+                      .build();
+        }
+      }
+    }
+    return getRestoreAgentMethod;
+  }
+
+  /** Creates a new async stub that supports all call types for the service */
+  public static AgentsStub newStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<AgentsStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<AgentsStub>() {
+          @java.lang.Override
+          public AgentsStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new AgentsStub(channel, callOptions);
+          }
+        };
+    return AgentsStub.newStub(factory, channel);
+  }
+
+  /**
+   * Creates a new blocking-style stub that supports unary and streaming output calls on the service
+   */
+  public static AgentsBlockingStub newBlockingStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<AgentsBlockingStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<AgentsBlockingStub>() {
+          @java.lang.Override
+          public AgentsBlockingStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new AgentsBlockingStub(channel, callOptions);
+          }
+        };
+    return AgentsBlockingStub.newStub(factory, channel);
+  }
+
+  /** Creates a new ListenableFuture-style stub that supports unary calls on the service */
+  public static AgentsFutureStub newFutureStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<AgentsFutureStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<AgentsFutureStub>() {
+          @java.lang.Override
+          public AgentsFutureStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new AgentsFutureStub(channel, callOptions);
+          }
+        };
+    return AgentsFutureStub.newStub(factory, channel);
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Agents][google.cloud.dialogflow.cx.v3beta1.Agent].
+   * </pre>
+   */
+  public abstract static class AgentsImplBase implements io.grpc.BindableService {
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all agents in the specified location.
+     * </pre>
+     */
+    public void listAgents(
+        com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getListAgentsMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified agent.
+     * </pre>
+     */
+    public void getAgent(
+        com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Agent>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getGetAgentMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates an agent in the specified location.
+     * </pre>
+     */
+    public void createAgent(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Agent>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getCreateAgentMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified agent.
+     * </pre>
+     */
+    public void updateAgent(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Agent>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getUpdateAgentMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified agent.
+     * </pre>
+     */
+    public void deleteAgent(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest request,
+        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver) {
+      asyncUnimplementedUnaryCall(getDeleteAgentMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Exports the specified agent to a ZIP file.
+     * </pre>
+     */
+    public void exportAgent(
+        com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      asyncUnimplementedUnaryCall(getExportAgentMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Restores the specified agent from a ZIP file.
+     * Note that all existing intents, intent routes, entity types, pages and
+     * webhooks in the agent will be deleted.
+     * </pre>
+     */
+    public void restoreAgent(
+        com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      asyncUnimplementedUnaryCall(getRestoreAgentMethod(), responseObserver);
+    }
+
+    @java.lang.Override
+    public final io.grpc.ServerServiceDefinition bindService() {
+      return io.grpc.ServerServiceDefinition.builder(getServiceDescriptor())
+          .addMethod(
+              getListAgentsMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse>(
+                      this, METHODID_LIST_AGENTS)))
+          .addMethod(
+              getGetAgentMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.Agent>(this, METHODID_GET_AGENT)))
+          .addMethod(
+              getCreateAgentMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.Agent>(this, METHODID_CREATE_AGENT)))
+          .addMethod(
+              getUpdateAgentMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.Agent>(this, METHODID_UPDATE_AGENT)))
+          .addMethod(
+              getDeleteAgentMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest,
+                      com.google.protobuf.Empty>(this, METHODID_DELETE_AGENT)))
+          .addMethod(
+              getExportAgentMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest,
+                      com.google.longrunning.Operation>(this, METHODID_EXPORT_AGENT)))
+          .addMethod(
+              getRestoreAgentMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest,
+                      com.google.longrunning.Operation>(this, METHODID_RESTORE_AGENT)))
+          .build();
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Agents][google.cloud.dialogflow.cx.v3beta1.Agent].
+   * </pre>
+   */
+  public static final class AgentsStub extends io.grpc.stub.AbstractAsyncStub<AgentsStub> {
+    private AgentsStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected AgentsStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new AgentsStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all agents in the specified location.
+     * </pre>
+     */
+    public void listAgents(
+        com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getListAgentsMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified agent.
+     * </pre>
+     */
+    public void getAgent(
+        com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Agent>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getGetAgentMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates an agent in the specified location.
+     * </pre>
+     */
+    public void createAgent(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Agent>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getCreateAgentMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified agent.
+     * </pre>
+     */
+    public void updateAgent(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Agent>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getUpdateAgentMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified agent.
+     * </pre>
+     */
+    public void deleteAgent(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest request,
+        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getDeleteAgentMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Exports the specified agent to a ZIP file.
+     * </pre>
+     */
+    public void exportAgent(
+        com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getExportAgentMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Restores the specified agent from a ZIP file.
+     * Note that all existing intents, intent routes, entity types, pages and
+     * webhooks in the agent will be deleted.
+     * </pre>
+     */
+    public void restoreAgent(
+        com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getRestoreAgentMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Agents][google.cloud.dialogflow.cx.v3beta1.Agent].
+   * </pre>
+   */
+  public static final class AgentsBlockingStub
+      extends io.grpc.stub.AbstractBlockingStub<AgentsBlockingStub> {
+    private AgentsBlockingStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected AgentsBlockingStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new AgentsBlockingStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all agents in the specified location.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse listAgents(
+        com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest request) {
+      return blockingUnaryCall(getChannel(), getListAgentsMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified agent.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Agent getAgent(
+        com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest request) {
+      return blockingUnaryCall(getChannel(), getGetAgentMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates an agent in the specified location.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Agent createAgent(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest request) {
+      return blockingUnaryCall(getChannel(), getCreateAgentMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified agent.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Agent updateAgent(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest request) {
+      return blockingUnaryCall(getChannel(), getUpdateAgentMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified agent.
+     * </pre>
+     */
+    public com.google.protobuf.Empty deleteAgent(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest request) {
+      return blockingUnaryCall(getChannel(), getDeleteAgentMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Exports the specified agent to a ZIP file.
+     * </pre>
+     */
+    public com.google.longrunning.Operation exportAgent(
+        com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest request) {
+      return blockingUnaryCall(getChannel(), getExportAgentMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Restores the specified agent from a ZIP file.
+     * Note that all existing intents, intent routes, entity types, pages and
+     * webhooks in the agent will be deleted.
+     * </pre>
+     */
+    public com.google.longrunning.Operation restoreAgent(
+        com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest request) {
+      return blockingUnaryCall(getChannel(), getRestoreAgentMethod(), getCallOptions(), request);
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Agents][google.cloud.dialogflow.cx.v3beta1.Agent].
+   * </pre>
+   */
+  public static final class AgentsFutureStub
+      extends io.grpc.stub.AbstractFutureStub<AgentsFutureStub> {
+    private AgentsFutureStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected AgentsFutureStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new AgentsFutureStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all agents in the specified location.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse>
+        listAgents(com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getListAgentsMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified agent.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.Agent>
+        getAgent(com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest request) {
+      return futureUnaryCall(getChannel().newCall(getGetAgentMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates an agent in the specified location.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.Agent>
+        createAgent(com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getCreateAgentMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified agent.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.Agent>
+        updateAgent(com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getUpdateAgentMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified agent.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.protobuf.Empty>
+        deleteAgent(com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getDeleteAgentMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Exports the specified agent to a ZIP file.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.longrunning.Operation>
+        exportAgent(com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getExportAgentMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Restores the specified agent from a ZIP file.
+     * Note that all existing intents, intent routes, entity types, pages and
+     * webhooks in the agent will be deleted.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.longrunning.Operation>
+        restoreAgent(com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getRestoreAgentMethod(), getCallOptions()), request);
+    }
+  }
+
+  private static final int METHODID_LIST_AGENTS = 0;
+  private static final int METHODID_GET_AGENT = 1;
+  private static final int METHODID_CREATE_AGENT = 2;
+  private static final int METHODID_UPDATE_AGENT = 3;
+  private static final int METHODID_DELETE_AGENT = 4;
+  private static final int METHODID_EXPORT_AGENT = 5;
+  private static final int METHODID_RESTORE_AGENT = 6;
+
+  private static final class MethodHandlers<Req, Resp>
+      implements io.grpc.stub.ServerCalls.UnaryMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.ServerStreamingMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.ClientStreamingMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.BidiStreamingMethod<Req, Resp> {
+    private final AgentsImplBase serviceImpl;
+    private final int methodId;
+
+    MethodHandlers(AgentsImplBase serviceImpl, int methodId) {
+      this.serviceImpl = serviceImpl;
+      this.methodId = methodId;
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public void invoke(Req request, io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        case METHODID_LIST_AGENTS:
+          serviceImpl.listAgents(
+              (com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest) request,
+              (io.grpc.stub.StreamObserver<
+                      com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse>)
+                  responseObserver);
+          break;
+        case METHODID_GET_AGENT:
+          serviceImpl.getAgent(
+              (com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Agent>)
+                  responseObserver);
+          break;
+        case METHODID_CREATE_AGENT:
+          serviceImpl.createAgent(
+              (com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Agent>)
+                  responseObserver);
+          break;
+        case METHODID_UPDATE_AGENT:
+          serviceImpl.updateAgent(
+              (com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Agent>)
+                  responseObserver);
+          break;
+        case METHODID_DELETE_AGENT:
+          serviceImpl.deleteAgent(
+              (com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.protobuf.Empty>) responseObserver);
+          break;
+        case METHODID_EXPORT_AGENT:
+          serviceImpl.exportAgent(
+              (com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.longrunning.Operation>) responseObserver);
+          break;
+        case METHODID_RESTORE_AGENT:
+          serviceImpl.restoreAgent(
+              (com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.longrunning.Operation>) responseObserver);
+          break;
+        default:
+          throw new AssertionError();
+      }
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public io.grpc.stub.StreamObserver<Req> invoke(
+        io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        default:
+          throw new AssertionError();
+      }
+    }
+  }
+
+  private abstract static class AgentsBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoFileDescriptorSupplier,
+          io.grpc.protobuf.ProtoServiceDescriptorSupplier {
+    AgentsBaseDescriptorSupplier() {}
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.FileDescriptor getFileDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto.getDescriptor();
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.ServiceDescriptor getServiceDescriptor() {
+      return getFileDescriptor().findServiceByName("Agents");
+    }
+  }
+
+  private static final class AgentsFileDescriptorSupplier extends AgentsBaseDescriptorSupplier {
+    AgentsFileDescriptorSupplier() {}
+  }
+
+  private static final class AgentsMethodDescriptorSupplier extends AgentsBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoMethodDescriptorSupplier {
+    private final String methodName;
+
+    AgentsMethodDescriptorSupplier(String methodName) {
+      this.methodName = methodName;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.MethodDescriptor getMethodDescriptor() {
+      return getServiceDescriptor().findMethodByName(methodName);
+    }
+  }
+
+  private static volatile io.grpc.ServiceDescriptor serviceDescriptor;
+
+  public static io.grpc.ServiceDescriptor getServiceDescriptor() {
+    io.grpc.ServiceDescriptor result = serviceDescriptor;
+    if (result == null) {
+      synchronized (AgentsGrpc.class) {
+        result = serviceDescriptor;
+        if (result == null) {
+          serviceDescriptor =
+              result =
+                  io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
+                      .setSchemaDescriptor(new AgentsFileDescriptorSupplier())
+                      .addMethod(getListAgentsMethod())
+                      .addMethod(getGetAgentMethod())
+                      .addMethod(getCreateAgentMethod())
+                      .addMethod(getUpdateAgentMethod())
+                      .addMethod(getDeleteAgentMethod())
+                      .addMethod(getExportAgentMethod())
+                      .addMethod(getRestoreAgentMethod())
+                      .build();
+        }
+      }
+    }
+    return result;
+  }
+}
diff --git a/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EntityTypesGrpc.java b/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EntityTypesGrpc.java
new file mode 100644
index 000000000..d31f19492
--- /dev/null
+++ b/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EntityTypesGrpc.java
@@ -0,0 +1,835 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static io.grpc.MethodDescriptor.generateFullMethodName;
+import static io.grpc.stub.ClientCalls.asyncUnaryCall;
+import static io.grpc.stub.ClientCalls.blockingUnaryCall;
+import static io.grpc.stub.ClientCalls.futureUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall;
+
+/**
+ *
+ *
+ * <pre>
+ * Service for managing [EntityTypes][google.cloud.dialogflow.cx.v3beta1.EntityType].
+ * </pre>
+ */
+@javax.annotation.Generated(
+    value = "by gRPC proto compiler",
+    comments = "Source: google/cloud/dialogflow/cx/v3beta1/entity_type.proto")
+public final class EntityTypesGrpc {
+
+  private EntityTypesGrpc() {}
+
+  public static final String SERVICE_NAME = "google.cloud.dialogflow.cx.v3beta1.EntityTypes";
+
+  // Static method descriptors that strictly reflect the proto.
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse>
+      getListEntityTypesMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "ListEntityTypes",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse>
+      getListEntityTypesMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse>
+        getListEntityTypesMethod;
+    if ((getListEntityTypesMethod = EntityTypesGrpc.getListEntityTypesMethod) == null) {
+      synchronized (EntityTypesGrpc.class) {
+        if ((getListEntityTypesMethod = EntityTypesGrpc.getListEntityTypesMethod) == null) {
+          EntityTypesGrpc.getListEntityTypesMethod =
+              getListEntityTypesMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "ListEntityTypes"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new EntityTypesMethodDescriptorSupplier("ListEntityTypes"))
+                      .build();
+        }
+      }
+    }
+    return getListEntityTypesMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.EntityType>
+      getGetEntityTypeMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GetEntityType",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.EntityType.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.EntityType>
+      getGetEntityTypeMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType>
+        getGetEntityTypeMethod;
+    if ((getGetEntityTypeMethod = EntityTypesGrpc.getGetEntityTypeMethod) == null) {
+      synchronized (EntityTypesGrpc.class) {
+        if ((getGetEntityTypeMethod = EntityTypesGrpc.getGetEntityTypeMethod) == null) {
+          EntityTypesGrpc.getGetEntityTypeMethod =
+              getGetEntityTypeMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.EntityType>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "GetEntityType"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.EntityType
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(new EntityTypesMethodDescriptorSupplier("GetEntityType"))
+                      .build();
+        }
+      }
+    }
+    return getGetEntityTypeMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.EntityType>
+      getCreateEntityTypeMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "CreateEntityType",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.EntityType.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.EntityType>
+      getCreateEntityTypeMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType>
+        getCreateEntityTypeMethod;
+    if ((getCreateEntityTypeMethod = EntityTypesGrpc.getCreateEntityTypeMethod) == null) {
+      synchronized (EntityTypesGrpc.class) {
+        if ((getCreateEntityTypeMethod = EntityTypesGrpc.getCreateEntityTypeMethod) == null) {
+          EntityTypesGrpc.getCreateEntityTypeMethod =
+              getCreateEntityTypeMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.EntityType>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "CreateEntityType"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.EntityType
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new EntityTypesMethodDescriptorSupplier("CreateEntityType"))
+                      .build();
+        }
+      }
+    }
+    return getCreateEntityTypeMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.EntityType>
+      getUpdateEntityTypeMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "UpdateEntityType",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.EntityType.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.EntityType>
+      getUpdateEntityTypeMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType>
+        getUpdateEntityTypeMethod;
+    if ((getUpdateEntityTypeMethod = EntityTypesGrpc.getUpdateEntityTypeMethod) == null) {
+      synchronized (EntityTypesGrpc.class) {
+        if ((getUpdateEntityTypeMethod = EntityTypesGrpc.getUpdateEntityTypeMethod) == null) {
+          EntityTypesGrpc.getUpdateEntityTypeMethod =
+              getUpdateEntityTypeMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.EntityType>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "UpdateEntityType"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.EntityType
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new EntityTypesMethodDescriptorSupplier("UpdateEntityType"))
+                      .build();
+        }
+      }
+    }
+    return getUpdateEntityTypeMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest, com.google.protobuf.Empty>
+      getDeleteEntityTypeMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "DeleteEntityType",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest.class,
+      responseType = com.google.protobuf.Empty.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest, com.google.protobuf.Empty>
+      getDeleteEntityTypeMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest,
+            com.google.protobuf.Empty>
+        getDeleteEntityTypeMethod;
+    if ((getDeleteEntityTypeMethod = EntityTypesGrpc.getDeleteEntityTypeMethod) == null) {
+      synchronized (EntityTypesGrpc.class) {
+        if ((getDeleteEntityTypeMethod = EntityTypesGrpc.getDeleteEntityTypeMethod) == null) {
+          EntityTypesGrpc.getDeleteEntityTypeMethod =
+              getDeleteEntityTypeMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest,
+                          com.google.protobuf.Empty>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "DeleteEntityType"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.protobuf.Empty.getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new EntityTypesMethodDescriptorSupplier("DeleteEntityType"))
+                      .build();
+        }
+      }
+    }
+    return getDeleteEntityTypeMethod;
+  }
+
+  /** Creates a new async stub that supports all call types for the service */
+  public static EntityTypesStub newStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<EntityTypesStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<EntityTypesStub>() {
+          @java.lang.Override
+          public EntityTypesStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new EntityTypesStub(channel, callOptions);
+          }
+        };
+    return EntityTypesStub.newStub(factory, channel);
+  }
+
+  /**
+   * Creates a new blocking-style stub that supports unary and streaming output calls on the service
+   */
+  public static EntityTypesBlockingStub newBlockingStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<EntityTypesBlockingStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<EntityTypesBlockingStub>() {
+          @java.lang.Override
+          public EntityTypesBlockingStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new EntityTypesBlockingStub(channel, callOptions);
+          }
+        };
+    return EntityTypesBlockingStub.newStub(factory, channel);
+  }
+
+  /** Creates a new ListenableFuture-style stub that supports unary calls on the service */
+  public static EntityTypesFutureStub newFutureStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<EntityTypesFutureStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<EntityTypesFutureStub>() {
+          @java.lang.Override
+          public EntityTypesFutureStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new EntityTypesFutureStub(channel, callOptions);
+          }
+        };
+    return EntityTypesFutureStub.newStub(factory, channel);
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [EntityTypes][google.cloud.dialogflow.cx.v3beta1.EntityType].
+   * </pre>
+   */
+  public abstract static class EntityTypesImplBase implements io.grpc.BindableService {
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all entity types in the specified agent.
+     * </pre>
+     */
+    public void listEntityTypes(
+        com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getListEntityTypesMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified entity type.
+     * </pre>
+     */
+    public void getEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.EntityType>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getGetEntityTypeMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates an entity type in the specified agent.
+     * </pre>
+     */
+    public void createEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.EntityType>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getCreateEntityTypeMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified entity type.
+     * </pre>
+     */
+    public void updateEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.EntityType>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getUpdateEntityTypeMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified entity type.
+     * </pre>
+     */
+    public void deleteEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest request,
+        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver) {
+      asyncUnimplementedUnaryCall(getDeleteEntityTypeMethod(), responseObserver);
+    }
+
+    @java.lang.Override
+    public final io.grpc.ServerServiceDefinition bindService() {
+      return io.grpc.ServerServiceDefinition.builder(getServiceDescriptor())
+          .addMethod(
+              getListEntityTypesMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse>(
+                      this, METHODID_LIST_ENTITY_TYPES)))
+          .addMethod(
+              getGetEntityTypeMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.EntityType>(
+                      this, METHODID_GET_ENTITY_TYPE)))
+          .addMethod(
+              getCreateEntityTypeMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.EntityType>(
+                      this, METHODID_CREATE_ENTITY_TYPE)))
+          .addMethod(
+              getUpdateEntityTypeMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.EntityType>(
+                      this, METHODID_UPDATE_ENTITY_TYPE)))
+          .addMethod(
+              getDeleteEntityTypeMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest,
+                      com.google.protobuf.Empty>(this, METHODID_DELETE_ENTITY_TYPE)))
+          .build();
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [EntityTypes][google.cloud.dialogflow.cx.v3beta1.EntityType].
+   * </pre>
+   */
+  public static final class EntityTypesStub
+      extends io.grpc.stub.AbstractAsyncStub<EntityTypesStub> {
+    private EntityTypesStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected EntityTypesStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new EntityTypesStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all entity types in the specified agent.
+     * </pre>
+     */
+    public void listEntityTypes(
+        com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getListEntityTypesMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified entity type.
+     * </pre>
+     */
+    public void getEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.EntityType>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getGetEntityTypeMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates an entity type in the specified agent.
+     * </pre>
+     */
+    public void createEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.EntityType>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getCreateEntityTypeMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified entity type.
+     * </pre>
+     */
+    public void updateEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.EntityType>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getUpdateEntityTypeMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified entity type.
+     * </pre>
+     */
+    public void deleteEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest request,
+        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getDeleteEntityTypeMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [EntityTypes][google.cloud.dialogflow.cx.v3beta1.EntityType].
+   * </pre>
+   */
+  public static final class EntityTypesBlockingStub
+      extends io.grpc.stub.AbstractBlockingStub<EntityTypesBlockingStub> {
+    private EntityTypesBlockingStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected EntityTypesBlockingStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new EntityTypesBlockingStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all entity types in the specified agent.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse listEntityTypes(
+        com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest request) {
+      return blockingUnaryCall(getChannel(), getListEntityTypesMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified entity type.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType getEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest request) {
+      return blockingUnaryCall(getChannel(), getGetEntityTypeMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates an entity type in the specified agent.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType createEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest request) {
+      return blockingUnaryCall(
+          getChannel(), getCreateEntityTypeMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified entity type.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType updateEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest request) {
+      return blockingUnaryCall(
+          getChannel(), getUpdateEntityTypeMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified entity type.
+     * </pre>
+     */
+    public com.google.protobuf.Empty deleteEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest request) {
+      return blockingUnaryCall(
+          getChannel(), getDeleteEntityTypeMethod(), getCallOptions(), request);
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [EntityTypes][google.cloud.dialogflow.cx.v3beta1.EntityType].
+   * </pre>
+   */
+  public static final class EntityTypesFutureStub
+      extends io.grpc.stub.AbstractFutureStub<EntityTypesFutureStub> {
+    private EntityTypesFutureStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected EntityTypesFutureStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new EntityTypesFutureStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all entity types in the specified agent.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse>
+        listEntityTypes(com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getListEntityTypesMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified entity type.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType>
+        getEntityType(com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getGetEntityTypeMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates an entity type in the specified agent.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType>
+        createEntityType(com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getCreateEntityTypeMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified entity type.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType>
+        updateEntityType(com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getUpdateEntityTypeMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified entity type.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.protobuf.Empty>
+        deleteEntityType(com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getDeleteEntityTypeMethod(), getCallOptions()), request);
+    }
+  }
+
+  private static final int METHODID_LIST_ENTITY_TYPES = 0;
+  private static final int METHODID_GET_ENTITY_TYPE = 1;
+  private static final int METHODID_CREATE_ENTITY_TYPE = 2;
+  private static final int METHODID_UPDATE_ENTITY_TYPE = 3;
+  private static final int METHODID_DELETE_ENTITY_TYPE = 4;
+
+  private static final class MethodHandlers<Req, Resp>
+      implements io.grpc.stub.ServerCalls.UnaryMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.ServerStreamingMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.ClientStreamingMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.BidiStreamingMethod<Req, Resp> {
+    private final EntityTypesImplBase serviceImpl;
+    private final int methodId;
+
+    MethodHandlers(EntityTypesImplBase serviceImpl, int methodId) {
+      this.serviceImpl = serviceImpl;
+      this.methodId = methodId;
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public void invoke(Req request, io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        case METHODID_LIST_ENTITY_TYPES:
+          serviceImpl.listEntityTypes(
+              (com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest) request,
+              (io.grpc.stub.StreamObserver<
+                      com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse>)
+                  responseObserver);
+          break;
+        case METHODID_GET_ENTITY_TYPE:
+          serviceImpl.getEntityType(
+              (com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.EntityType>)
+                  responseObserver);
+          break;
+        case METHODID_CREATE_ENTITY_TYPE:
+          serviceImpl.createEntityType(
+              (com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.EntityType>)
+                  responseObserver);
+          break;
+        case METHODID_UPDATE_ENTITY_TYPE:
+          serviceImpl.updateEntityType(
+              (com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.EntityType>)
+                  responseObserver);
+          break;
+        case METHODID_DELETE_ENTITY_TYPE:
+          serviceImpl.deleteEntityType(
+              (com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.protobuf.Empty>) responseObserver);
+          break;
+        default:
+          throw new AssertionError();
+      }
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public io.grpc.stub.StreamObserver<Req> invoke(
+        io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        default:
+          throw new AssertionError();
+      }
+    }
+  }
+
+  private abstract static class EntityTypesBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoFileDescriptorSupplier,
+          io.grpc.protobuf.ProtoServiceDescriptorSupplier {
+    EntityTypesBaseDescriptorSupplier() {}
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.FileDescriptor getFileDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto.getDescriptor();
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.ServiceDescriptor getServiceDescriptor() {
+      return getFileDescriptor().findServiceByName("EntityTypes");
+    }
+  }
+
+  private static final class EntityTypesFileDescriptorSupplier
+      extends EntityTypesBaseDescriptorSupplier {
+    EntityTypesFileDescriptorSupplier() {}
+  }
+
+  private static final class EntityTypesMethodDescriptorSupplier
+      extends EntityTypesBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoMethodDescriptorSupplier {
+    private final String methodName;
+
+    EntityTypesMethodDescriptorSupplier(String methodName) {
+      this.methodName = methodName;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.MethodDescriptor getMethodDescriptor() {
+      return getServiceDescriptor().findMethodByName(methodName);
+    }
+  }
+
+  private static volatile io.grpc.ServiceDescriptor serviceDescriptor;
+
+  public static io.grpc.ServiceDescriptor getServiceDescriptor() {
+    io.grpc.ServiceDescriptor result = serviceDescriptor;
+    if (result == null) {
+      synchronized (EntityTypesGrpc.class) {
+        result = serviceDescriptor;
+        if (result == null) {
+          serviceDescriptor =
+              result =
+                  io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
+                      .setSchemaDescriptor(new EntityTypesFileDescriptorSupplier())
+                      .addMethod(getListEntityTypesMethod())
+                      .addMethod(getGetEntityTypeMethod())
+                      .addMethod(getCreateEntityTypeMethod())
+                      .addMethod(getUpdateEntityTypeMethod())
+                      .addMethod(getDeleteEntityTypeMethod())
+                      .build();
+        }
+      }
+    }
+    return result;
+  }
+}
diff --git a/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentsGrpc.java b/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentsGrpc.java
new file mode 100644
index 000000000..8b917626f
--- /dev/null
+++ b/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentsGrpc.java
@@ -0,0 +1,956 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static io.grpc.MethodDescriptor.generateFullMethodName;
+import static io.grpc.stub.ClientCalls.asyncUnaryCall;
+import static io.grpc.stub.ClientCalls.blockingUnaryCall;
+import static io.grpc.stub.ClientCalls.futureUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall;
+
+/**
+ *
+ *
+ * <pre>
+ * Service for managing [Environments][google.cloud.dialogflow.cx.v3beta1.Environment].
+ * </pre>
+ */
+@javax.annotation.Generated(
+    value = "by gRPC proto compiler",
+    comments = "Source: google/cloud/dialogflow/cx/v3beta1/environment.proto")
+public final class EnvironmentsGrpc {
+
+  private EnvironmentsGrpc() {}
+
+  public static final String SERVICE_NAME = "google.cloud.dialogflow.cx.v3beta1.Environments";
+
+  // Static method descriptors that strictly reflect the proto.
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse>
+      getListEnvironmentsMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "ListEnvironments",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse>
+      getListEnvironmentsMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse>
+        getListEnvironmentsMethod;
+    if ((getListEnvironmentsMethod = EnvironmentsGrpc.getListEnvironmentsMethod) == null) {
+      synchronized (EnvironmentsGrpc.class) {
+        if ((getListEnvironmentsMethod = EnvironmentsGrpc.getListEnvironmentsMethod) == null) {
+          EnvironmentsGrpc.getListEnvironmentsMethod =
+              getListEnvironmentsMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "ListEnvironments"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new EnvironmentsMethodDescriptorSupplier("ListEnvironments"))
+                      .build();
+        }
+      }
+    }
+    return getListEnvironmentsMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Environment>
+      getGetEnvironmentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GetEnvironment",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.Environment.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Environment>
+      getGetEnvironmentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.Environment>
+        getGetEnvironmentMethod;
+    if ((getGetEnvironmentMethod = EnvironmentsGrpc.getGetEnvironmentMethod) == null) {
+      synchronized (EnvironmentsGrpc.class) {
+        if ((getGetEnvironmentMethod = EnvironmentsGrpc.getGetEnvironmentMethod) == null) {
+          EnvironmentsGrpc.getGetEnvironmentMethod =
+              getGetEnvironmentMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.Environment>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "GetEnvironment"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.Environment
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new EnvironmentsMethodDescriptorSupplier("GetEnvironment"))
+                      .build();
+        }
+      }
+    }
+    return getGetEnvironmentMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest,
+          com.google.longrunning.Operation>
+      getCreateEnvironmentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "CreateEnvironment",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest.class,
+      responseType = com.google.longrunning.Operation.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest,
+          com.google.longrunning.Operation>
+      getCreateEnvironmentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest,
+            com.google.longrunning.Operation>
+        getCreateEnvironmentMethod;
+    if ((getCreateEnvironmentMethod = EnvironmentsGrpc.getCreateEnvironmentMethod) == null) {
+      synchronized (EnvironmentsGrpc.class) {
+        if ((getCreateEnvironmentMethod = EnvironmentsGrpc.getCreateEnvironmentMethod) == null) {
+          EnvironmentsGrpc.getCreateEnvironmentMethod =
+              getCreateEnvironmentMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest,
+                          com.google.longrunning.Operation>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "CreateEnvironment"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.longrunning.Operation.getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new EnvironmentsMethodDescriptorSupplier("CreateEnvironment"))
+                      .build();
+        }
+      }
+    }
+    return getCreateEnvironmentMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest,
+          com.google.longrunning.Operation>
+      getUpdateEnvironmentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "UpdateEnvironment",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest.class,
+      responseType = com.google.longrunning.Operation.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest,
+          com.google.longrunning.Operation>
+      getUpdateEnvironmentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest,
+            com.google.longrunning.Operation>
+        getUpdateEnvironmentMethod;
+    if ((getUpdateEnvironmentMethod = EnvironmentsGrpc.getUpdateEnvironmentMethod) == null) {
+      synchronized (EnvironmentsGrpc.class) {
+        if ((getUpdateEnvironmentMethod = EnvironmentsGrpc.getUpdateEnvironmentMethod) == null) {
+          EnvironmentsGrpc.getUpdateEnvironmentMethod =
+              getUpdateEnvironmentMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest,
+                          com.google.longrunning.Operation>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "UpdateEnvironment"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.longrunning.Operation.getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new EnvironmentsMethodDescriptorSupplier("UpdateEnvironment"))
+                      .build();
+        }
+      }
+    }
+    return getUpdateEnvironmentMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest,
+          com.google.protobuf.Empty>
+      getDeleteEnvironmentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "DeleteEnvironment",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest.class,
+      responseType = com.google.protobuf.Empty.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest,
+          com.google.protobuf.Empty>
+      getDeleteEnvironmentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest,
+            com.google.protobuf.Empty>
+        getDeleteEnvironmentMethod;
+    if ((getDeleteEnvironmentMethod = EnvironmentsGrpc.getDeleteEnvironmentMethod) == null) {
+      synchronized (EnvironmentsGrpc.class) {
+        if ((getDeleteEnvironmentMethod = EnvironmentsGrpc.getDeleteEnvironmentMethod) == null) {
+          EnvironmentsGrpc.getDeleteEnvironmentMethod =
+              getDeleteEnvironmentMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest,
+                          com.google.protobuf.Empty>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "DeleteEnvironment"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.protobuf.Empty.getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new EnvironmentsMethodDescriptorSupplier("DeleteEnvironment"))
+                      .build();
+        }
+      }
+    }
+    return getDeleteEnvironmentMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse>
+      getLookupEnvironmentHistoryMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "LookupEnvironmentHistory",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse>
+      getLookupEnvironmentHistoryMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse>
+        getLookupEnvironmentHistoryMethod;
+    if ((getLookupEnvironmentHistoryMethod = EnvironmentsGrpc.getLookupEnvironmentHistoryMethod)
+        == null) {
+      synchronized (EnvironmentsGrpc.class) {
+        if ((getLookupEnvironmentHistoryMethod = EnvironmentsGrpc.getLookupEnvironmentHistoryMethod)
+            == null) {
+          EnvironmentsGrpc.getLookupEnvironmentHistoryMethod =
+              getLookupEnvironmentHistoryMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(
+                          generateFullMethodName(SERVICE_NAME, "LookupEnvironmentHistory"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1
+                                  .LookupEnvironmentHistoryResponse.getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new EnvironmentsMethodDescriptorSupplier("LookupEnvironmentHistory"))
+                      .build();
+        }
+      }
+    }
+    return getLookupEnvironmentHistoryMethod;
+  }
+
+  /** Creates a new async stub that supports all call types for the service */
+  public static EnvironmentsStub newStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<EnvironmentsStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<EnvironmentsStub>() {
+          @java.lang.Override
+          public EnvironmentsStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new EnvironmentsStub(channel, callOptions);
+          }
+        };
+    return EnvironmentsStub.newStub(factory, channel);
+  }
+
+  /**
+   * Creates a new blocking-style stub that supports unary and streaming output calls on the service
+   */
+  public static EnvironmentsBlockingStub newBlockingStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<EnvironmentsBlockingStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<EnvironmentsBlockingStub>() {
+          @java.lang.Override
+          public EnvironmentsBlockingStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new EnvironmentsBlockingStub(channel, callOptions);
+          }
+        };
+    return EnvironmentsBlockingStub.newStub(factory, channel);
+  }
+
+  /** Creates a new ListenableFuture-style stub that supports unary calls on the service */
+  public static EnvironmentsFutureStub newFutureStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<EnvironmentsFutureStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<EnvironmentsFutureStub>() {
+          @java.lang.Override
+          public EnvironmentsFutureStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new EnvironmentsFutureStub(channel, callOptions);
+          }
+        };
+    return EnvironmentsFutureStub.newStub(factory, channel);
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Environments][google.cloud.dialogflow.cx.v3beta1.Environment].
+   * </pre>
+   */
+  public abstract static class EnvironmentsImplBase implements io.grpc.BindableService {
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all environments in the specified [Agent][google.cloud.dialogflow.cx.v3beta1.Agent].
+     * </pre>
+     */
+    public void listEnvironments(
+        com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getListEnvironmentsMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+     * </pre>
+     */
+    public void getEnvironment(
+        com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Environment>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getGetEnvironmentMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates an [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] in the specified [Agent][google.cloud.dialogflow.cx.v3beta1.Agent].
+     * </pre>
+     */
+    public void createEnvironment(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      asyncUnimplementedUnaryCall(getCreateEnvironmentMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+     * </pre>
+     */
+    public void updateEnvironment(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      asyncUnimplementedUnaryCall(getUpdateEnvironmentMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+     * </pre>
+     */
+    public void deleteEnvironment(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest request,
+        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver) {
+      asyncUnimplementedUnaryCall(getDeleteEnvironmentMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Looks up the history of the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+     * </pre>
+     */
+    public void lookupEnvironmentHistory(
+        com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest request,
+        io.grpc.stub.StreamObserver<
+                com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getLookupEnvironmentHistoryMethod(), responseObserver);
+    }
+
+    @java.lang.Override
+    public final io.grpc.ServerServiceDefinition bindService() {
+      return io.grpc.ServerServiceDefinition.builder(getServiceDescriptor())
+          .addMethod(
+              getListEnvironmentsMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse>(
+                      this, METHODID_LIST_ENVIRONMENTS)))
+          .addMethod(
+              getGetEnvironmentMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.Environment>(
+                      this, METHODID_GET_ENVIRONMENT)))
+          .addMethod(
+              getCreateEnvironmentMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest,
+                      com.google.longrunning.Operation>(this, METHODID_CREATE_ENVIRONMENT)))
+          .addMethod(
+              getUpdateEnvironmentMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest,
+                      com.google.longrunning.Operation>(this, METHODID_UPDATE_ENVIRONMENT)))
+          .addMethod(
+              getDeleteEnvironmentMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest,
+                      com.google.protobuf.Empty>(this, METHODID_DELETE_ENVIRONMENT)))
+          .addMethod(
+              getLookupEnvironmentHistoryMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse>(
+                      this, METHODID_LOOKUP_ENVIRONMENT_HISTORY)))
+          .build();
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Environments][google.cloud.dialogflow.cx.v3beta1.Environment].
+   * </pre>
+   */
+  public static final class EnvironmentsStub
+      extends io.grpc.stub.AbstractAsyncStub<EnvironmentsStub> {
+    private EnvironmentsStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected EnvironmentsStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new EnvironmentsStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all environments in the specified [Agent][google.cloud.dialogflow.cx.v3beta1.Agent].
+     * </pre>
+     */
+    public void listEnvironments(
+        com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getListEnvironmentsMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+     * </pre>
+     */
+    public void getEnvironment(
+        com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Environment>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getGetEnvironmentMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates an [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] in the specified [Agent][google.cloud.dialogflow.cx.v3beta1.Agent].
+     * </pre>
+     */
+    public void createEnvironment(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getCreateEnvironmentMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+     * </pre>
+     */
+    public void updateEnvironment(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getUpdateEnvironmentMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+     * </pre>
+     */
+    public void deleteEnvironment(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest request,
+        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getDeleteEnvironmentMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Looks up the history of the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+     * </pre>
+     */
+    public void lookupEnvironmentHistory(
+        com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest request,
+        io.grpc.stub.StreamObserver<
+                com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getLookupEnvironmentHistoryMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Environments][google.cloud.dialogflow.cx.v3beta1.Environment].
+   * </pre>
+   */
+  public static final class EnvironmentsBlockingStub
+      extends io.grpc.stub.AbstractBlockingStub<EnvironmentsBlockingStub> {
+    private EnvironmentsBlockingStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected EnvironmentsBlockingStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new EnvironmentsBlockingStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all environments in the specified [Agent][google.cloud.dialogflow.cx.v3beta1.Agent].
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse listEnvironments(
+        com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest request) {
+      return blockingUnaryCall(
+          getChannel(), getListEnvironmentsMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Environment getEnvironment(
+        com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest request) {
+      return blockingUnaryCall(getChannel(), getGetEnvironmentMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates an [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] in the specified [Agent][google.cloud.dialogflow.cx.v3beta1.Agent].
+     * </pre>
+     */
+    public com.google.longrunning.Operation createEnvironment(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest request) {
+      return blockingUnaryCall(
+          getChannel(), getCreateEnvironmentMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+     * </pre>
+     */
+    public com.google.longrunning.Operation updateEnvironment(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest request) {
+      return blockingUnaryCall(
+          getChannel(), getUpdateEnvironmentMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+     * </pre>
+     */
+    public com.google.protobuf.Empty deleteEnvironment(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest request) {
+      return blockingUnaryCall(
+          getChannel(), getDeleteEnvironmentMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Looks up the history of the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse
+        lookupEnvironmentHistory(
+            com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest request) {
+      return blockingUnaryCall(
+          getChannel(), getLookupEnvironmentHistoryMethod(), getCallOptions(), request);
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Environments][google.cloud.dialogflow.cx.v3beta1.Environment].
+   * </pre>
+   */
+  public static final class EnvironmentsFutureStub
+      extends io.grpc.stub.AbstractFutureStub<EnvironmentsFutureStub> {
+    private EnvironmentsFutureStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected EnvironmentsFutureStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new EnvironmentsFutureStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all environments in the specified [Agent][google.cloud.dialogflow.cx.v3beta1.Agent].
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse>
+        listEnvironments(com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getListEnvironmentsMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.Environment>
+        getEnvironment(com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getGetEnvironmentMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates an [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] in the specified [Agent][google.cloud.dialogflow.cx.v3beta1.Agent].
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.longrunning.Operation>
+        createEnvironment(com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getCreateEnvironmentMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.longrunning.Operation>
+        updateEnvironment(com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getUpdateEnvironmentMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.protobuf.Empty>
+        deleteEnvironment(com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getDeleteEnvironmentMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Looks up the history of the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse>
+        lookupEnvironmentHistory(
+            com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getLookupEnvironmentHistoryMethod(), getCallOptions()), request);
+    }
+  }
+
+  private static final int METHODID_LIST_ENVIRONMENTS = 0;
+  private static final int METHODID_GET_ENVIRONMENT = 1;
+  private static final int METHODID_CREATE_ENVIRONMENT = 2;
+  private static final int METHODID_UPDATE_ENVIRONMENT = 3;
+  private static final int METHODID_DELETE_ENVIRONMENT = 4;
+  private static final int METHODID_LOOKUP_ENVIRONMENT_HISTORY = 5;
+
+  private static final class MethodHandlers<Req, Resp>
+      implements io.grpc.stub.ServerCalls.UnaryMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.ServerStreamingMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.ClientStreamingMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.BidiStreamingMethod<Req, Resp> {
+    private final EnvironmentsImplBase serviceImpl;
+    private final int methodId;
+
+    MethodHandlers(EnvironmentsImplBase serviceImpl, int methodId) {
+      this.serviceImpl = serviceImpl;
+      this.methodId = methodId;
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public void invoke(Req request, io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        case METHODID_LIST_ENVIRONMENTS:
+          serviceImpl.listEnvironments(
+              (com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest) request,
+              (io.grpc.stub.StreamObserver<
+                      com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse>)
+                  responseObserver);
+          break;
+        case METHODID_GET_ENVIRONMENT:
+          serviceImpl.getEnvironment(
+              (com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Environment>)
+                  responseObserver);
+          break;
+        case METHODID_CREATE_ENVIRONMENT:
+          serviceImpl.createEnvironment(
+              (com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.longrunning.Operation>) responseObserver);
+          break;
+        case METHODID_UPDATE_ENVIRONMENT:
+          serviceImpl.updateEnvironment(
+              (com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.longrunning.Operation>) responseObserver);
+          break;
+        case METHODID_DELETE_ENVIRONMENT:
+          serviceImpl.deleteEnvironment(
+              (com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.protobuf.Empty>) responseObserver);
+          break;
+        case METHODID_LOOKUP_ENVIRONMENT_HISTORY:
+          serviceImpl.lookupEnvironmentHistory(
+              (com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest) request,
+              (io.grpc.stub.StreamObserver<
+                      com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse>)
+                  responseObserver);
+          break;
+        default:
+          throw new AssertionError();
+      }
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public io.grpc.stub.StreamObserver<Req> invoke(
+        io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        default:
+          throw new AssertionError();
+      }
+    }
+  }
+
+  private abstract static class EnvironmentsBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoFileDescriptorSupplier,
+          io.grpc.protobuf.ProtoServiceDescriptorSupplier {
+    EnvironmentsBaseDescriptorSupplier() {}
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.FileDescriptor getFileDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto.getDescriptor();
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.ServiceDescriptor getServiceDescriptor() {
+      return getFileDescriptor().findServiceByName("Environments");
+    }
+  }
+
+  private static final class EnvironmentsFileDescriptorSupplier
+      extends EnvironmentsBaseDescriptorSupplier {
+    EnvironmentsFileDescriptorSupplier() {}
+  }
+
+  private static final class EnvironmentsMethodDescriptorSupplier
+      extends EnvironmentsBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoMethodDescriptorSupplier {
+    private final String methodName;
+
+    EnvironmentsMethodDescriptorSupplier(String methodName) {
+      this.methodName = methodName;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.MethodDescriptor getMethodDescriptor() {
+      return getServiceDescriptor().findMethodByName(methodName);
+    }
+  }
+
+  private static volatile io.grpc.ServiceDescriptor serviceDescriptor;
+
+  public static io.grpc.ServiceDescriptor getServiceDescriptor() {
+    io.grpc.ServiceDescriptor result = serviceDescriptor;
+    if (result == null) {
+      synchronized (EnvironmentsGrpc.class) {
+        result = serviceDescriptor;
+        if (result == null) {
+          serviceDescriptor =
+              result =
+                  io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
+                      .setSchemaDescriptor(new EnvironmentsFileDescriptorSupplier())
+                      .addMethod(getListEnvironmentsMethod())
+                      .addMethod(getGetEnvironmentMethod())
+                      .addMethod(getCreateEnvironmentMethod())
+                      .addMethod(getUpdateEnvironmentMethod())
+                      .addMethod(getDeleteEnvironmentMethod())
+                      .addMethod(getLookupEnvironmentHistoryMethod())
+                      .build();
+        }
+      }
+    }
+    return result;
+  }
+}
diff --git a/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowsGrpc.java b/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowsGrpc.java
new file mode 100644
index 000000000..02652bcb6
--- /dev/null
+++ b/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowsGrpc.java
@@ -0,0 +1,908 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static io.grpc.MethodDescriptor.generateFullMethodName;
+import static io.grpc.stub.ClientCalls.asyncUnaryCall;
+import static io.grpc.stub.ClientCalls.blockingUnaryCall;
+import static io.grpc.stub.ClientCalls.futureUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall;
+
+/**
+ *
+ *
+ * <pre>
+ * Service for managing [Flows][google.cloud.dialogflow.cx.v3beta1.Flow].
+ * </pre>
+ */
+@javax.annotation.Generated(
+    value = "by gRPC proto compiler",
+    comments = "Source: google/cloud/dialogflow/cx/v3beta1/flow.proto")
+public final class FlowsGrpc {
+
+  private FlowsGrpc() {}
+
+  public static final String SERVICE_NAME = "google.cloud.dialogflow.cx.v3beta1.Flows";
+
+  // Static method descriptors that strictly reflect the proto.
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Flow>
+      getCreateFlowMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "CreateFlow",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.Flow.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Flow>
+      getCreateFlowMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.Flow>
+        getCreateFlowMethod;
+    if ((getCreateFlowMethod = FlowsGrpc.getCreateFlowMethod) == null) {
+      synchronized (FlowsGrpc.class) {
+        if ((getCreateFlowMethod = FlowsGrpc.getCreateFlowMethod) == null) {
+          FlowsGrpc.getCreateFlowMethod =
+              getCreateFlowMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.Flow>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "CreateFlow"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.Flow.getDefaultInstance()))
+                      .setSchemaDescriptor(new FlowsMethodDescriptorSupplier("CreateFlow"))
+                      .build();
+        }
+      }
+    }
+    return getCreateFlowMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest, com.google.protobuf.Empty>
+      getDeleteFlowMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "DeleteFlow",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest.class,
+      responseType = com.google.protobuf.Empty.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest, com.google.protobuf.Empty>
+      getDeleteFlowMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest, com.google.protobuf.Empty>
+        getDeleteFlowMethod;
+    if ((getDeleteFlowMethod = FlowsGrpc.getDeleteFlowMethod) == null) {
+      synchronized (FlowsGrpc.class) {
+        if ((getDeleteFlowMethod = FlowsGrpc.getDeleteFlowMethod) == null) {
+          FlowsGrpc.getDeleteFlowMethod =
+              getDeleteFlowMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest,
+                          com.google.protobuf.Empty>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "DeleteFlow"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.protobuf.Empty.getDefaultInstance()))
+                      .setSchemaDescriptor(new FlowsMethodDescriptorSupplier("DeleteFlow"))
+                      .build();
+        }
+      }
+    }
+    return getDeleteFlowMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse>
+      getListFlowsMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "ListFlows",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse>
+      getListFlowsMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse>
+        getListFlowsMethod;
+    if ((getListFlowsMethod = FlowsGrpc.getListFlowsMethod) == null) {
+      synchronized (FlowsGrpc.class) {
+        if ((getListFlowsMethod = FlowsGrpc.getListFlowsMethod) == null) {
+          FlowsGrpc.getListFlowsMethod =
+              getListFlowsMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "ListFlows"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(new FlowsMethodDescriptorSupplier("ListFlows"))
+                      .build();
+        }
+      }
+    }
+    return getListFlowsMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Flow>
+      getGetFlowMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GetFlow",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.Flow.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Flow>
+      getGetFlowMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.Flow>
+        getGetFlowMethod;
+    if ((getGetFlowMethod = FlowsGrpc.getGetFlowMethod) == null) {
+      synchronized (FlowsGrpc.class) {
+        if ((getGetFlowMethod = FlowsGrpc.getGetFlowMethod) == null) {
+          FlowsGrpc.getGetFlowMethod =
+              getGetFlowMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.Flow>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "GetFlow"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.Flow.getDefaultInstance()))
+                      .setSchemaDescriptor(new FlowsMethodDescriptorSupplier("GetFlow"))
+                      .build();
+        }
+      }
+    }
+    return getGetFlowMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Flow>
+      getUpdateFlowMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "UpdateFlow",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.Flow.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Flow>
+      getUpdateFlowMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.Flow>
+        getUpdateFlowMethod;
+    if ((getUpdateFlowMethod = FlowsGrpc.getUpdateFlowMethod) == null) {
+      synchronized (FlowsGrpc.class) {
+        if ((getUpdateFlowMethod = FlowsGrpc.getUpdateFlowMethod) == null) {
+          FlowsGrpc.getUpdateFlowMethod =
+              getUpdateFlowMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.Flow>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "UpdateFlow"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.Flow.getDefaultInstance()))
+                      .setSchemaDescriptor(new FlowsMethodDescriptorSupplier("UpdateFlow"))
+                      .build();
+        }
+      }
+    }
+    return getUpdateFlowMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest, com.google.longrunning.Operation>
+      getTrainFlowMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "TrainFlow",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest.class,
+      responseType = com.google.longrunning.Operation.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest, com.google.longrunning.Operation>
+      getTrainFlowMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest,
+            com.google.longrunning.Operation>
+        getTrainFlowMethod;
+    if ((getTrainFlowMethod = FlowsGrpc.getTrainFlowMethod) == null) {
+      synchronized (FlowsGrpc.class) {
+        if ((getTrainFlowMethod = FlowsGrpc.getTrainFlowMethod) == null) {
+          FlowsGrpc.getTrainFlowMethod =
+              getTrainFlowMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest,
+                          com.google.longrunning.Operation>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "TrainFlow"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.longrunning.Operation.getDefaultInstance()))
+                      .setSchemaDescriptor(new FlowsMethodDescriptorSupplier("TrainFlow"))
+                      .build();
+        }
+      }
+    }
+    return getTrainFlowMethod;
+  }
+
+  /** Creates a new async stub that supports all call types for the service */
+  public static FlowsStub newStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<FlowsStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<FlowsStub>() {
+          @java.lang.Override
+          public FlowsStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new FlowsStub(channel, callOptions);
+          }
+        };
+    return FlowsStub.newStub(factory, channel);
+  }
+
+  /**
+   * Creates a new blocking-style stub that supports unary and streaming output calls on the service
+   */
+  public static FlowsBlockingStub newBlockingStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<FlowsBlockingStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<FlowsBlockingStub>() {
+          @java.lang.Override
+          public FlowsBlockingStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new FlowsBlockingStub(channel, callOptions);
+          }
+        };
+    return FlowsBlockingStub.newStub(factory, channel);
+  }
+
+  /** Creates a new ListenableFuture-style stub that supports unary calls on the service */
+  public static FlowsFutureStub newFutureStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<FlowsFutureStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<FlowsFutureStub>() {
+          @java.lang.Override
+          public FlowsFutureStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new FlowsFutureStub(channel, callOptions);
+          }
+        };
+    return FlowsFutureStub.newStub(factory, channel);
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Flows][google.cloud.dialogflow.cx.v3beta1.Flow].
+   * </pre>
+   */
+  public abstract static class FlowsImplBase implements io.grpc.BindableService {
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates a flow in the specified agent.
+     * </pre>
+     */
+    public void createFlow(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Flow> responseObserver) {
+      asyncUnimplementedUnaryCall(getCreateFlowMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes a specified flow.
+     * </pre>
+     */
+    public void deleteFlow(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest request,
+        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver) {
+      asyncUnimplementedUnaryCall(getDeleteFlowMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all flows in the specified agent.
+     * </pre>
+     */
+    public void listFlows(
+        com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getListFlowsMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified flow.
+     * </pre>
+     */
+    public void getFlow(
+        com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Flow> responseObserver) {
+      asyncUnimplementedUnaryCall(getGetFlowMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified flow.
+     * </pre>
+     */
+    public void updateFlow(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Flow> responseObserver) {
+      asyncUnimplementedUnaryCall(getUpdateFlowMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Trains the specified flow. Note that only the flow in 'draft' environment
+     * is trained.
+     * </pre>
+     */
+    public void trainFlow(
+        com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      asyncUnimplementedUnaryCall(getTrainFlowMethod(), responseObserver);
+    }
+
+    @java.lang.Override
+    public final io.grpc.ServerServiceDefinition bindService() {
+      return io.grpc.ServerServiceDefinition.builder(getServiceDescriptor())
+          .addMethod(
+              getCreateFlowMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.Flow>(this, METHODID_CREATE_FLOW)))
+          .addMethod(
+              getDeleteFlowMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest,
+                      com.google.protobuf.Empty>(this, METHODID_DELETE_FLOW)))
+          .addMethod(
+              getListFlowsMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse>(
+                      this, METHODID_LIST_FLOWS)))
+          .addMethod(
+              getGetFlowMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.Flow>(this, METHODID_GET_FLOW)))
+          .addMethod(
+              getUpdateFlowMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.Flow>(this, METHODID_UPDATE_FLOW)))
+          .addMethod(
+              getTrainFlowMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest,
+                      com.google.longrunning.Operation>(this, METHODID_TRAIN_FLOW)))
+          .build();
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Flows][google.cloud.dialogflow.cx.v3beta1.Flow].
+   * </pre>
+   */
+  public static final class FlowsStub extends io.grpc.stub.AbstractAsyncStub<FlowsStub> {
+    private FlowsStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected FlowsStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new FlowsStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates a flow in the specified agent.
+     * </pre>
+     */
+    public void createFlow(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Flow> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getCreateFlowMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes a specified flow.
+     * </pre>
+     */
+    public void deleteFlow(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest request,
+        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getDeleteFlowMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all flows in the specified agent.
+     * </pre>
+     */
+    public void listFlows(
+        com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getListFlowsMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified flow.
+     * </pre>
+     */
+    public void getFlow(
+        com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Flow> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getGetFlowMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified flow.
+     * </pre>
+     */
+    public void updateFlow(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Flow> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getUpdateFlowMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Trains the specified flow. Note that only the flow in 'draft' environment
+     * is trained.
+     * </pre>
+     */
+    public void trainFlow(
+        com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getTrainFlowMethod(), getCallOptions()), request, responseObserver);
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Flows][google.cloud.dialogflow.cx.v3beta1.Flow].
+   * </pre>
+   */
+  public static final class FlowsBlockingStub
+      extends io.grpc.stub.AbstractBlockingStub<FlowsBlockingStub> {
+    private FlowsBlockingStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected FlowsBlockingStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new FlowsBlockingStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates a flow in the specified agent.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Flow createFlow(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest request) {
+      return blockingUnaryCall(getChannel(), getCreateFlowMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes a specified flow.
+     * </pre>
+     */
+    public com.google.protobuf.Empty deleteFlow(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest request) {
+      return blockingUnaryCall(getChannel(), getDeleteFlowMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all flows in the specified agent.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse listFlows(
+        com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest request) {
+      return blockingUnaryCall(getChannel(), getListFlowsMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified flow.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Flow getFlow(
+        com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest request) {
+      return blockingUnaryCall(getChannel(), getGetFlowMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified flow.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Flow updateFlow(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest request) {
+      return blockingUnaryCall(getChannel(), getUpdateFlowMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Trains the specified flow. Note that only the flow in 'draft' environment
+     * is trained.
+     * </pre>
+     */
+    public com.google.longrunning.Operation trainFlow(
+        com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest request) {
+      return blockingUnaryCall(getChannel(), getTrainFlowMethod(), getCallOptions(), request);
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Flows][google.cloud.dialogflow.cx.v3beta1.Flow].
+   * </pre>
+   */
+  public static final class FlowsFutureStub
+      extends io.grpc.stub.AbstractFutureStub<FlowsFutureStub> {
+    private FlowsFutureStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected FlowsFutureStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new FlowsFutureStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates a flow in the specified agent.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.Flow>
+        createFlow(com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getCreateFlowMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes a specified flow.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.protobuf.Empty> deleteFlow(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getDeleteFlowMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all flows in the specified agent.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse>
+        listFlows(com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest request) {
+      return futureUnaryCall(getChannel().newCall(getListFlowsMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified flow.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.Flow>
+        getFlow(com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest request) {
+      return futureUnaryCall(getChannel().newCall(getGetFlowMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified flow.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.Flow>
+        updateFlow(com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getUpdateFlowMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Trains the specified flow. Note that only the flow in 'draft' environment
+     * is trained.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.longrunning.Operation>
+        trainFlow(com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest request) {
+      return futureUnaryCall(getChannel().newCall(getTrainFlowMethod(), getCallOptions()), request);
+    }
+  }
+
+  private static final int METHODID_CREATE_FLOW = 0;
+  private static final int METHODID_DELETE_FLOW = 1;
+  private static final int METHODID_LIST_FLOWS = 2;
+  private static final int METHODID_GET_FLOW = 3;
+  private static final int METHODID_UPDATE_FLOW = 4;
+  private static final int METHODID_TRAIN_FLOW = 5;
+
+  private static final class MethodHandlers<Req, Resp>
+      implements io.grpc.stub.ServerCalls.UnaryMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.ServerStreamingMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.ClientStreamingMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.BidiStreamingMethod<Req, Resp> {
+    private final FlowsImplBase serviceImpl;
+    private final int methodId;
+
+    MethodHandlers(FlowsImplBase serviceImpl, int methodId) {
+      this.serviceImpl = serviceImpl;
+      this.methodId = methodId;
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public void invoke(Req request, io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        case METHODID_CREATE_FLOW:
+          serviceImpl.createFlow(
+              (com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Flow>)
+                  responseObserver);
+          break;
+        case METHODID_DELETE_FLOW:
+          serviceImpl.deleteFlow(
+              (com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.protobuf.Empty>) responseObserver);
+          break;
+        case METHODID_LIST_FLOWS:
+          serviceImpl.listFlows(
+              (com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest) request,
+              (io.grpc.stub.StreamObserver<
+                      com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse>)
+                  responseObserver);
+          break;
+        case METHODID_GET_FLOW:
+          serviceImpl.getFlow(
+              (com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Flow>)
+                  responseObserver);
+          break;
+        case METHODID_UPDATE_FLOW:
+          serviceImpl.updateFlow(
+              (com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Flow>)
+                  responseObserver);
+          break;
+        case METHODID_TRAIN_FLOW:
+          serviceImpl.trainFlow(
+              (com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.longrunning.Operation>) responseObserver);
+          break;
+        default:
+          throw new AssertionError();
+      }
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public io.grpc.stub.StreamObserver<Req> invoke(
+        io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        default:
+          throw new AssertionError();
+      }
+    }
+  }
+
+  private abstract static class FlowsBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoFileDescriptorSupplier,
+          io.grpc.protobuf.ProtoServiceDescriptorSupplier {
+    FlowsBaseDescriptorSupplier() {}
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.FileDescriptor getFileDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto.getDescriptor();
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.ServiceDescriptor getServiceDescriptor() {
+      return getFileDescriptor().findServiceByName("Flows");
+    }
+  }
+
+  private static final class FlowsFileDescriptorSupplier extends FlowsBaseDescriptorSupplier {
+    FlowsFileDescriptorSupplier() {}
+  }
+
+  private static final class FlowsMethodDescriptorSupplier extends FlowsBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoMethodDescriptorSupplier {
+    private final String methodName;
+
+    FlowsMethodDescriptorSupplier(String methodName) {
+      this.methodName = methodName;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.MethodDescriptor getMethodDescriptor() {
+      return getServiceDescriptor().findMethodByName(methodName);
+    }
+  }
+
+  private static volatile io.grpc.ServiceDescriptor serviceDescriptor;
+
+  public static io.grpc.ServiceDescriptor getServiceDescriptor() {
+    io.grpc.ServiceDescriptor result = serviceDescriptor;
+    if (result == null) {
+      synchronized (FlowsGrpc.class) {
+        result = serviceDescriptor;
+        if (result == null) {
+          serviceDescriptor =
+              result =
+                  io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
+                      .setSchemaDescriptor(new FlowsFileDescriptorSupplier())
+                      .addMethod(getCreateFlowMethod())
+                      .addMethod(getDeleteFlowMethod())
+                      .addMethod(getListFlowsMethod())
+                      .addMethod(getGetFlowMethod())
+                      .addMethod(getUpdateFlowMethod())
+                      .addMethod(getTrainFlowMethod())
+                      .build();
+        }
+      }
+    }
+    return result;
+  }
+}
diff --git a/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentsGrpc.java b/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentsGrpc.java
new file mode 100644
index 000000000..8d49ad05b
--- /dev/null
+++ b/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentsGrpc.java
@@ -0,0 +1,813 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static io.grpc.MethodDescriptor.generateFullMethodName;
+import static io.grpc.stub.ClientCalls.asyncUnaryCall;
+import static io.grpc.stub.ClientCalls.blockingUnaryCall;
+import static io.grpc.stub.ClientCalls.futureUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall;
+
+/**
+ *
+ *
+ * <pre>
+ * Service for managing [Intents][google.cloud.dialogflow.cx.v3beta1.Intent].
+ * </pre>
+ */
+@javax.annotation.Generated(
+    value = "by gRPC proto compiler",
+    comments = "Source: google/cloud/dialogflow/cx/v3beta1/intent.proto")
+public final class IntentsGrpc {
+
+  private IntentsGrpc() {}
+
+  public static final String SERVICE_NAME = "google.cloud.dialogflow.cx.v3beta1.Intents";
+
+  // Static method descriptors that strictly reflect the proto.
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse>
+      getListIntentsMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "ListIntents",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse>
+      getListIntentsMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse>
+        getListIntentsMethod;
+    if ((getListIntentsMethod = IntentsGrpc.getListIntentsMethod) == null) {
+      synchronized (IntentsGrpc.class) {
+        if ((getListIntentsMethod = IntentsGrpc.getListIntentsMethod) == null) {
+          IntentsGrpc.getListIntentsMethod =
+              getListIntentsMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "ListIntents"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(new IntentsMethodDescriptorSupplier("ListIntents"))
+                      .build();
+        }
+      }
+    }
+    return getListIntentsMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Intent>
+      getGetIntentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GetIntent",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.Intent.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Intent>
+      getGetIntentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.Intent>
+        getGetIntentMethod;
+    if ((getGetIntentMethod = IntentsGrpc.getGetIntentMethod) == null) {
+      synchronized (IntentsGrpc.class) {
+        if ((getGetIntentMethod = IntentsGrpc.getGetIntentMethod) == null) {
+          IntentsGrpc.getGetIntentMethod =
+              getGetIntentMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.Intent>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "GetIntent"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.Intent.getDefaultInstance()))
+                      .setSchemaDescriptor(new IntentsMethodDescriptorSupplier("GetIntent"))
+                      .build();
+        }
+      }
+    }
+    return getGetIntentMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Intent>
+      getCreateIntentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "CreateIntent",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.Intent.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Intent>
+      getCreateIntentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.Intent>
+        getCreateIntentMethod;
+    if ((getCreateIntentMethod = IntentsGrpc.getCreateIntentMethod) == null) {
+      synchronized (IntentsGrpc.class) {
+        if ((getCreateIntentMethod = IntentsGrpc.getCreateIntentMethod) == null) {
+          IntentsGrpc.getCreateIntentMethod =
+              getCreateIntentMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.Intent>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "CreateIntent"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.Intent.getDefaultInstance()))
+                      .setSchemaDescriptor(new IntentsMethodDescriptorSupplier("CreateIntent"))
+                      .build();
+        }
+      }
+    }
+    return getCreateIntentMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Intent>
+      getUpdateIntentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "UpdateIntent",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.Intent.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Intent>
+      getUpdateIntentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.Intent>
+        getUpdateIntentMethod;
+    if ((getUpdateIntentMethod = IntentsGrpc.getUpdateIntentMethod) == null) {
+      synchronized (IntentsGrpc.class) {
+        if ((getUpdateIntentMethod = IntentsGrpc.getUpdateIntentMethod) == null) {
+          IntentsGrpc.getUpdateIntentMethod =
+              getUpdateIntentMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.Intent>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "UpdateIntent"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.Intent.getDefaultInstance()))
+                      .setSchemaDescriptor(new IntentsMethodDescriptorSupplier("UpdateIntent"))
+                      .build();
+        }
+      }
+    }
+    return getUpdateIntentMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest, com.google.protobuf.Empty>
+      getDeleteIntentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "DeleteIntent",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest.class,
+      responseType = com.google.protobuf.Empty.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest, com.google.protobuf.Empty>
+      getDeleteIntentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest, com.google.protobuf.Empty>
+        getDeleteIntentMethod;
+    if ((getDeleteIntentMethod = IntentsGrpc.getDeleteIntentMethod) == null) {
+      synchronized (IntentsGrpc.class) {
+        if ((getDeleteIntentMethod = IntentsGrpc.getDeleteIntentMethod) == null) {
+          IntentsGrpc.getDeleteIntentMethod =
+              getDeleteIntentMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest,
+                          com.google.protobuf.Empty>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "DeleteIntent"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.protobuf.Empty.getDefaultInstance()))
+                      .setSchemaDescriptor(new IntentsMethodDescriptorSupplier("DeleteIntent"))
+                      .build();
+        }
+      }
+    }
+    return getDeleteIntentMethod;
+  }
+
+  /** Creates a new async stub that supports all call types for the service */
+  public static IntentsStub newStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<IntentsStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<IntentsStub>() {
+          @java.lang.Override
+          public IntentsStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new IntentsStub(channel, callOptions);
+          }
+        };
+    return IntentsStub.newStub(factory, channel);
+  }
+
+  /**
+   * Creates a new blocking-style stub that supports unary and streaming output calls on the service
+   */
+  public static IntentsBlockingStub newBlockingStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<IntentsBlockingStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<IntentsBlockingStub>() {
+          @java.lang.Override
+          public IntentsBlockingStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new IntentsBlockingStub(channel, callOptions);
+          }
+        };
+    return IntentsBlockingStub.newStub(factory, channel);
+  }
+
+  /** Creates a new ListenableFuture-style stub that supports unary calls on the service */
+  public static IntentsFutureStub newFutureStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<IntentsFutureStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<IntentsFutureStub>() {
+          @java.lang.Override
+          public IntentsFutureStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new IntentsFutureStub(channel, callOptions);
+          }
+        };
+    return IntentsFutureStub.newStub(factory, channel);
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Intents][google.cloud.dialogflow.cx.v3beta1.Intent].
+   * </pre>
+   */
+  public abstract static class IntentsImplBase implements io.grpc.BindableService {
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all intents in the specified agent.
+     * </pre>
+     */
+    public void listIntents(
+        com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getListIntentsMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified intent.
+     * </pre>
+     */
+    public void getIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Intent>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getGetIntentMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates an intent in the specified agent.
+     * </pre>
+     */
+    public void createIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Intent>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getCreateIntentMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified intent.
+     * </pre>
+     */
+    public void updateIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Intent>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getUpdateIntentMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified intent.
+     * </pre>
+     */
+    public void deleteIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest request,
+        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver) {
+      asyncUnimplementedUnaryCall(getDeleteIntentMethod(), responseObserver);
+    }
+
+    @java.lang.Override
+    public final io.grpc.ServerServiceDefinition bindService() {
+      return io.grpc.ServerServiceDefinition.builder(getServiceDescriptor())
+          .addMethod(
+              getListIntentsMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse>(
+                      this, METHODID_LIST_INTENTS)))
+          .addMethod(
+              getGetIntentMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.Intent>(this, METHODID_GET_INTENT)))
+          .addMethod(
+              getCreateIntentMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.Intent>(this, METHODID_CREATE_INTENT)))
+          .addMethod(
+              getUpdateIntentMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.Intent>(this, METHODID_UPDATE_INTENT)))
+          .addMethod(
+              getDeleteIntentMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest,
+                      com.google.protobuf.Empty>(this, METHODID_DELETE_INTENT)))
+          .build();
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Intents][google.cloud.dialogflow.cx.v3beta1.Intent].
+   * </pre>
+   */
+  public static final class IntentsStub extends io.grpc.stub.AbstractAsyncStub<IntentsStub> {
+    private IntentsStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected IntentsStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new IntentsStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all intents in the specified agent.
+     * </pre>
+     */
+    public void listIntents(
+        com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getListIntentsMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified intent.
+     * </pre>
+     */
+    public void getIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Intent>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getGetIntentMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates an intent in the specified agent.
+     * </pre>
+     */
+    public void createIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Intent>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getCreateIntentMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified intent.
+     * </pre>
+     */
+    public void updateIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Intent>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getUpdateIntentMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified intent.
+     * </pre>
+     */
+    public void deleteIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest request,
+        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getDeleteIntentMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Intents][google.cloud.dialogflow.cx.v3beta1.Intent].
+   * </pre>
+   */
+  public static final class IntentsBlockingStub
+      extends io.grpc.stub.AbstractBlockingStub<IntentsBlockingStub> {
+    private IntentsBlockingStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected IntentsBlockingStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new IntentsBlockingStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all intents in the specified agent.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse listIntents(
+        com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest request) {
+      return blockingUnaryCall(getChannel(), getListIntentsMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified intent.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent getIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest request) {
+      return blockingUnaryCall(getChannel(), getGetIntentMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates an intent in the specified agent.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent createIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest request) {
+      return blockingUnaryCall(getChannel(), getCreateIntentMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified intent.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent updateIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest request) {
+      return blockingUnaryCall(getChannel(), getUpdateIntentMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified intent.
+     * </pre>
+     */
+    public com.google.protobuf.Empty deleteIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest request) {
+      return blockingUnaryCall(getChannel(), getDeleteIntentMethod(), getCallOptions(), request);
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Intents][google.cloud.dialogflow.cx.v3beta1.Intent].
+   * </pre>
+   */
+  public static final class IntentsFutureStub
+      extends io.grpc.stub.AbstractFutureStub<IntentsFutureStub> {
+    private IntentsFutureStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected IntentsFutureStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new IntentsFutureStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all intents in the specified agent.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse>
+        listIntents(com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getListIntentsMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified intent.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.Intent>
+        getIntent(com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest request) {
+      return futureUnaryCall(getChannel().newCall(getGetIntentMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates an intent in the specified agent.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.Intent>
+        createIntent(com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getCreateIntentMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified intent.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.Intent>
+        updateIntent(com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getUpdateIntentMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified intent.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.protobuf.Empty>
+        deleteIntent(com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getDeleteIntentMethod(), getCallOptions()), request);
+    }
+  }
+
+  private static final int METHODID_LIST_INTENTS = 0;
+  private static final int METHODID_GET_INTENT = 1;
+  private static final int METHODID_CREATE_INTENT = 2;
+  private static final int METHODID_UPDATE_INTENT = 3;
+  private static final int METHODID_DELETE_INTENT = 4;
+
+  private static final class MethodHandlers<Req, Resp>
+      implements io.grpc.stub.ServerCalls.UnaryMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.ServerStreamingMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.ClientStreamingMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.BidiStreamingMethod<Req, Resp> {
+    private final IntentsImplBase serviceImpl;
+    private final int methodId;
+
+    MethodHandlers(IntentsImplBase serviceImpl, int methodId) {
+      this.serviceImpl = serviceImpl;
+      this.methodId = methodId;
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public void invoke(Req request, io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        case METHODID_LIST_INTENTS:
+          serviceImpl.listIntents(
+              (com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest) request,
+              (io.grpc.stub.StreamObserver<
+                      com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse>)
+                  responseObserver);
+          break;
+        case METHODID_GET_INTENT:
+          serviceImpl.getIntent(
+              (com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Intent>)
+                  responseObserver);
+          break;
+        case METHODID_CREATE_INTENT:
+          serviceImpl.createIntent(
+              (com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Intent>)
+                  responseObserver);
+          break;
+        case METHODID_UPDATE_INTENT:
+          serviceImpl.updateIntent(
+              (com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Intent>)
+                  responseObserver);
+          break;
+        case METHODID_DELETE_INTENT:
+          serviceImpl.deleteIntent(
+              (com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.protobuf.Empty>) responseObserver);
+          break;
+        default:
+          throw new AssertionError();
+      }
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public io.grpc.stub.StreamObserver<Req> invoke(
+        io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        default:
+          throw new AssertionError();
+      }
+    }
+  }
+
+  private abstract static class IntentsBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoFileDescriptorSupplier,
+          io.grpc.protobuf.ProtoServiceDescriptorSupplier {
+    IntentsBaseDescriptorSupplier() {}
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.FileDescriptor getFileDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto.getDescriptor();
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.ServiceDescriptor getServiceDescriptor() {
+      return getFileDescriptor().findServiceByName("Intents");
+    }
+  }
+
+  private static final class IntentsFileDescriptorSupplier extends IntentsBaseDescriptorSupplier {
+    IntentsFileDescriptorSupplier() {}
+  }
+
+  private static final class IntentsMethodDescriptorSupplier extends IntentsBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoMethodDescriptorSupplier {
+    private final String methodName;
+
+    IntentsMethodDescriptorSupplier(String methodName) {
+      this.methodName = methodName;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.MethodDescriptor getMethodDescriptor() {
+      return getServiceDescriptor().findMethodByName(methodName);
+    }
+  }
+
+  private static volatile io.grpc.ServiceDescriptor serviceDescriptor;
+
+  public static io.grpc.ServiceDescriptor getServiceDescriptor() {
+    io.grpc.ServiceDescriptor result = serviceDescriptor;
+    if (result == null) {
+      synchronized (IntentsGrpc.class) {
+        result = serviceDescriptor;
+        if (result == null) {
+          serviceDescriptor =
+              result =
+                  io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
+                      .setSchemaDescriptor(new IntentsFileDescriptorSupplier())
+                      .addMethod(getListIntentsMethod())
+                      .addMethod(getGetIntentMethod())
+                      .addMethod(getCreateIntentMethod())
+                      .addMethod(getUpdateIntentMethod())
+                      .addMethod(getDeleteIntentMethod())
+                      .build();
+        }
+      }
+    }
+    return result;
+  }
+}
diff --git a/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PagesGrpc.java b/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PagesGrpc.java
new file mode 100644
index 000000000..c96f2ce69
--- /dev/null
+++ b/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PagesGrpc.java
@@ -0,0 +1,797 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static io.grpc.MethodDescriptor.generateFullMethodName;
+import static io.grpc.stub.ClientCalls.asyncUnaryCall;
+import static io.grpc.stub.ClientCalls.blockingUnaryCall;
+import static io.grpc.stub.ClientCalls.futureUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall;
+
+/**
+ *
+ *
+ * <pre>
+ * Service for managing [Pages][google.cloud.dialogflow.cx.v3beta1.Page].
+ * </pre>
+ */
+@javax.annotation.Generated(
+    value = "by gRPC proto compiler",
+    comments = "Source: google/cloud/dialogflow/cx/v3beta1/page.proto")
+public final class PagesGrpc {
+
+  private PagesGrpc() {}
+
+  public static final String SERVICE_NAME = "google.cloud.dialogflow.cx.v3beta1.Pages";
+
+  // Static method descriptors that strictly reflect the proto.
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse>
+      getListPagesMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "ListPages",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse>
+      getListPagesMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse>
+        getListPagesMethod;
+    if ((getListPagesMethod = PagesGrpc.getListPagesMethod) == null) {
+      synchronized (PagesGrpc.class) {
+        if ((getListPagesMethod = PagesGrpc.getListPagesMethod) == null) {
+          PagesGrpc.getListPagesMethod =
+              getListPagesMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "ListPages"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(new PagesMethodDescriptorSupplier("ListPages"))
+                      .build();
+        }
+      }
+    }
+    return getListPagesMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Page>
+      getGetPageMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GetPage",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.Page.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Page>
+      getGetPageMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.Page>
+        getGetPageMethod;
+    if ((getGetPageMethod = PagesGrpc.getGetPageMethod) == null) {
+      synchronized (PagesGrpc.class) {
+        if ((getGetPageMethod = PagesGrpc.getGetPageMethod) == null) {
+          PagesGrpc.getGetPageMethod =
+              getGetPageMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.Page>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "GetPage"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.Page.getDefaultInstance()))
+                      .setSchemaDescriptor(new PagesMethodDescriptorSupplier("GetPage"))
+                      .build();
+        }
+      }
+    }
+    return getGetPageMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Page>
+      getCreatePageMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "CreatePage",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.Page.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Page>
+      getCreatePageMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.Page>
+        getCreatePageMethod;
+    if ((getCreatePageMethod = PagesGrpc.getCreatePageMethod) == null) {
+      synchronized (PagesGrpc.class) {
+        if ((getCreatePageMethod = PagesGrpc.getCreatePageMethod) == null) {
+          PagesGrpc.getCreatePageMethod =
+              getCreatePageMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.Page>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "CreatePage"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.Page.getDefaultInstance()))
+                      .setSchemaDescriptor(new PagesMethodDescriptorSupplier("CreatePage"))
+                      .build();
+        }
+      }
+    }
+    return getCreatePageMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Page>
+      getUpdatePageMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "UpdatePage",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.Page.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Page>
+      getUpdatePageMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.Page>
+        getUpdatePageMethod;
+    if ((getUpdatePageMethod = PagesGrpc.getUpdatePageMethod) == null) {
+      synchronized (PagesGrpc.class) {
+        if ((getUpdatePageMethod = PagesGrpc.getUpdatePageMethod) == null) {
+          PagesGrpc.getUpdatePageMethod =
+              getUpdatePageMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.Page>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "UpdatePage"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.Page.getDefaultInstance()))
+                      .setSchemaDescriptor(new PagesMethodDescriptorSupplier("UpdatePage"))
+                      .build();
+        }
+      }
+    }
+    return getUpdatePageMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest, com.google.protobuf.Empty>
+      getDeletePageMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "DeletePage",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest.class,
+      responseType = com.google.protobuf.Empty.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest, com.google.protobuf.Empty>
+      getDeletePageMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest, com.google.protobuf.Empty>
+        getDeletePageMethod;
+    if ((getDeletePageMethod = PagesGrpc.getDeletePageMethod) == null) {
+      synchronized (PagesGrpc.class) {
+        if ((getDeletePageMethod = PagesGrpc.getDeletePageMethod) == null) {
+          PagesGrpc.getDeletePageMethod =
+              getDeletePageMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest,
+                          com.google.protobuf.Empty>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "DeletePage"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.protobuf.Empty.getDefaultInstance()))
+                      .setSchemaDescriptor(new PagesMethodDescriptorSupplier("DeletePage"))
+                      .build();
+        }
+      }
+    }
+    return getDeletePageMethod;
+  }
+
+  /** Creates a new async stub that supports all call types for the service */
+  public static PagesStub newStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<PagesStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<PagesStub>() {
+          @java.lang.Override
+          public PagesStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new PagesStub(channel, callOptions);
+          }
+        };
+    return PagesStub.newStub(factory, channel);
+  }
+
+  /**
+   * Creates a new blocking-style stub that supports unary and streaming output calls on the service
+   */
+  public static PagesBlockingStub newBlockingStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<PagesBlockingStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<PagesBlockingStub>() {
+          @java.lang.Override
+          public PagesBlockingStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new PagesBlockingStub(channel, callOptions);
+          }
+        };
+    return PagesBlockingStub.newStub(factory, channel);
+  }
+
+  /** Creates a new ListenableFuture-style stub that supports unary calls on the service */
+  public static PagesFutureStub newFutureStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<PagesFutureStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<PagesFutureStub>() {
+          @java.lang.Override
+          public PagesFutureStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new PagesFutureStub(channel, callOptions);
+          }
+        };
+    return PagesFutureStub.newStub(factory, channel);
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Pages][google.cloud.dialogflow.cx.v3beta1.Page].
+   * </pre>
+   */
+  public abstract static class PagesImplBase implements io.grpc.BindableService {
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all pages in the specified flow.
+     * </pre>
+     */
+    public void listPages(
+        com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getListPagesMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified page.
+     * </pre>
+     */
+    public void getPage(
+        com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Page> responseObserver) {
+      asyncUnimplementedUnaryCall(getGetPageMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates a page in the specified flow.
+     * </pre>
+     */
+    public void createPage(
+        com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Page> responseObserver) {
+      asyncUnimplementedUnaryCall(getCreatePageMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified page.
+     * </pre>
+     */
+    public void updatePage(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Page> responseObserver) {
+      asyncUnimplementedUnaryCall(getUpdatePageMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified page.
+     * </pre>
+     */
+    public void deletePage(
+        com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest request,
+        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver) {
+      asyncUnimplementedUnaryCall(getDeletePageMethod(), responseObserver);
+    }
+
+    @java.lang.Override
+    public final io.grpc.ServerServiceDefinition bindService() {
+      return io.grpc.ServerServiceDefinition.builder(getServiceDescriptor())
+          .addMethod(
+              getListPagesMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse>(
+                      this, METHODID_LIST_PAGES)))
+          .addMethod(
+              getGetPageMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.Page>(this, METHODID_GET_PAGE)))
+          .addMethod(
+              getCreatePageMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.Page>(this, METHODID_CREATE_PAGE)))
+          .addMethod(
+              getUpdatePageMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.Page>(this, METHODID_UPDATE_PAGE)))
+          .addMethod(
+              getDeletePageMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest,
+                      com.google.protobuf.Empty>(this, METHODID_DELETE_PAGE)))
+          .build();
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Pages][google.cloud.dialogflow.cx.v3beta1.Page].
+   * </pre>
+   */
+  public static final class PagesStub extends io.grpc.stub.AbstractAsyncStub<PagesStub> {
+    private PagesStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected PagesStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new PagesStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all pages in the specified flow.
+     * </pre>
+     */
+    public void listPages(
+        com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getListPagesMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified page.
+     * </pre>
+     */
+    public void getPage(
+        com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Page> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getGetPageMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates a page in the specified flow.
+     * </pre>
+     */
+    public void createPage(
+        com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Page> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getCreatePageMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified page.
+     * </pre>
+     */
+    public void updatePage(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Page> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getUpdatePageMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified page.
+     * </pre>
+     */
+    public void deletePage(
+        com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest request,
+        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getDeletePageMethod(), getCallOptions()), request, responseObserver);
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Pages][google.cloud.dialogflow.cx.v3beta1.Page].
+   * </pre>
+   */
+  public static final class PagesBlockingStub
+      extends io.grpc.stub.AbstractBlockingStub<PagesBlockingStub> {
+    private PagesBlockingStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected PagesBlockingStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new PagesBlockingStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all pages in the specified flow.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse listPages(
+        com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest request) {
+      return blockingUnaryCall(getChannel(), getListPagesMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified page.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Page getPage(
+        com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest request) {
+      return blockingUnaryCall(getChannel(), getGetPageMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates a page in the specified flow.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Page createPage(
+        com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest request) {
+      return blockingUnaryCall(getChannel(), getCreatePageMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified page.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Page updatePage(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest request) {
+      return blockingUnaryCall(getChannel(), getUpdatePageMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified page.
+     * </pre>
+     */
+    public com.google.protobuf.Empty deletePage(
+        com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest request) {
+      return blockingUnaryCall(getChannel(), getDeletePageMethod(), getCallOptions(), request);
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Pages][google.cloud.dialogflow.cx.v3beta1.Page].
+   * </pre>
+   */
+  public static final class PagesFutureStub
+      extends io.grpc.stub.AbstractFutureStub<PagesFutureStub> {
+    private PagesFutureStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected PagesFutureStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new PagesFutureStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all pages in the specified flow.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse>
+        listPages(com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest request) {
+      return futureUnaryCall(getChannel().newCall(getListPagesMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified page.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.Page>
+        getPage(com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest request) {
+      return futureUnaryCall(getChannel().newCall(getGetPageMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates a page in the specified flow.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.Page>
+        createPage(com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getCreatePageMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified page.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.Page>
+        updatePage(com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getUpdatePageMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified page.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.protobuf.Empty> deletePage(
+        com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getDeletePageMethod(), getCallOptions()), request);
+    }
+  }
+
+  private static final int METHODID_LIST_PAGES = 0;
+  private static final int METHODID_GET_PAGE = 1;
+  private static final int METHODID_CREATE_PAGE = 2;
+  private static final int METHODID_UPDATE_PAGE = 3;
+  private static final int METHODID_DELETE_PAGE = 4;
+
+  private static final class MethodHandlers<Req, Resp>
+      implements io.grpc.stub.ServerCalls.UnaryMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.ServerStreamingMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.ClientStreamingMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.BidiStreamingMethod<Req, Resp> {
+    private final PagesImplBase serviceImpl;
+    private final int methodId;
+
+    MethodHandlers(PagesImplBase serviceImpl, int methodId) {
+      this.serviceImpl = serviceImpl;
+      this.methodId = methodId;
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public void invoke(Req request, io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        case METHODID_LIST_PAGES:
+          serviceImpl.listPages(
+              (com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest) request,
+              (io.grpc.stub.StreamObserver<
+                      com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse>)
+                  responseObserver);
+          break;
+        case METHODID_GET_PAGE:
+          serviceImpl.getPage(
+              (com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Page>)
+                  responseObserver);
+          break;
+        case METHODID_CREATE_PAGE:
+          serviceImpl.createPage(
+              (com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Page>)
+                  responseObserver);
+          break;
+        case METHODID_UPDATE_PAGE:
+          serviceImpl.updatePage(
+              (com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Page>)
+                  responseObserver);
+          break;
+        case METHODID_DELETE_PAGE:
+          serviceImpl.deletePage(
+              (com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.protobuf.Empty>) responseObserver);
+          break;
+        default:
+          throw new AssertionError();
+      }
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public io.grpc.stub.StreamObserver<Req> invoke(
+        io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        default:
+          throw new AssertionError();
+      }
+    }
+  }
+
+  private abstract static class PagesBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoFileDescriptorSupplier,
+          io.grpc.protobuf.ProtoServiceDescriptorSupplier {
+    PagesBaseDescriptorSupplier() {}
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.FileDescriptor getFileDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto.getDescriptor();
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.ServiceDescriptor getServiceDescriptor() {
+      return getFileDescriptor().findServiceByName("Pages");
+    }
+  }
+
+  private static final class PagesFileDescriptorSupplier extends PagesBaseDescriptorSupplier {
+    PagesFileDescriptorSupplier() {}
+  }
+
+  private static final class PagesMethodDescriptorSupplier extends PagesBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoMethodDescriptorSupplier {
+    private final String methodName;
+
+    PagesMethodDescriptorSupplier(String methodName) {
+      this.methodName = methodName;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.MethodDescriptor getMethodDescriptor() {
+      return getServiceDescriptor().findMethodByName(methodName);
+    }
+  }
+
+  private static volatile io.grpc.ServiceDescriptor serviceDescriptor;
+
+  public static io.grpc.ServiceDescriptor getServiceDescriptor() {
+    io.grpc.ServiceDescriptor result = serviceDescriptor;
+    if (result == null) {
+      synchronized (PagesGrpc.class) {
+        result = serviceDescriptor;
+        if (result == null) {
+          serviceDescriptor =
+              result =
+                  io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
+                      .setSchemaDescriptor(new PagesFileDescriptorSupplier())
+                      .addMethod(getListPagesMethod())
+                      .addMethod(getGetPageMethod())
+                      .addMethod(getCreatePageMethod())
+                      .addMethod(getUpdatePageMethod())
+                      .addMethod(getDeletePageMethod())
+                      .build();
+        }
+      }
+    }
+    return result;
+  }
+}
diff --git a/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityTypesGrpc.java b/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityTypesGrpc.java
new file mode 100644
index 000000000..7ebafc045
--- /dev/null
+++ b/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityTypesGrpc.java
@@ -0,0 +1,881 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static io.grpc.MethodDescriptor.generateFullMethodName;
+import static io.grpc.stub.ClientCalls.asyncUnaryCall;
+import static io.grpc.stub.ClientCalls.blockingUnaryCall;
+import static io.grpc.stub.ClientCalls.futureUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall;
+
+/**
+ *
+ *
+ * <pre>
+ * Service for managing [SessionEntityTypes][google.cloud.dialogflow.cx.v3beta1.SessionEntityType].
+ * </pre>
+ */
+@javax.annotation.Generated(
+    value = "by gRPC proto compiler",
+    comments = "Source: google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto")
+public final class SessionEntityTypesGrpc {
+
+  private SessionEntityTypesGrpc() {}
+
+  public static final String SERVICE_NAME = "google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes";
+
+  // Static method descriptors that strictly reflect the proto.
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse>
+      getListSessionEntityTypesMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "ListSessionEntityTypes",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse>
+      getListSessionEntityTypesMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse>
+        getListSessionEntityTypesMethod;
+    if ((getListSessionEntityTypesMethod = SessionEntityTypesGrpc.getListSessionEntityTypesMethod)
+        == null) {
+      synchronized (SessionEntityTypesGrpc.class) {
+        if ((getListSessionEntityTypesMethod =
+                SessionEntityTypesGrpc.getListSessionEntityTypesMethod)
+            == null) {
+          SessionEntityTypesGrpc.getListSessionEntityTypesMethod =
+              getListSessionEntityTypesMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(
+                          generateFullMethodName(SERVICE_NAME, "ListSessionEntityTypes"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new SessionEntityTypesMethodDescriptorSupplier("ListSessionEntityTypes"))
+                      .build();
+        }
+      }
+    }
+    return getListSessionEntityTypesMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+      getGetSessionEntityTypeMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GetSessionEntityType",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+      getGetSessionEntityTypeMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+        getGetSessionEntityTypeMethod;
+    if ((getGetSessionEntityTypeMethod = SessionEntityTypesGrpc.getGetSessionEntityTypeMethod)
+        == null) {
+      synchronized (SessionEntityTypesGrpc.class) {
+        if ((getGetSessionEntityTypeMethod = SessionEntityTypesGrpc.getGetSessionEntityTypeMethod)
+            == null) {
+          SessionEntityTypesGrpc.getGetSessionEntityTypeMethod =
+              getGetSessionEntityTypeMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(
+                          generateFullMethodName(SERVICE_NAME, "GetSessionEntityType"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new SessionEntityTypesMethodDescriptorSupplier("GetSessionEntityType"))
+                      .build();
+        }
+      }
+    }
+    return getGetSessionEntityTypeMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+      getCreateSessionEntityTypeMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "CreateSessionEntityType",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+      getCreateSessionEntityTypeMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+        getCreateSessionEntityTypeMethod;
+    if ((getCreateSessionEntityTypeMethod = SessionEntityTypesGrpc.getCreateSessionEntityTypeMethod)
+        == null) {
+      synchronized (SessionEntityTypesGrpc.class) {
+        if ((getCreateSessionEntityTypeMethod =
+                SessionEntityTypesGrpc.getCreateSessionEntityTypeMethod)
+            == null) {
+          SessionEntityTypesGrpc.getCreateSessionEntityTypeMethod =
+              getCreateSessionEntityTypeMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(
+                          generateFullMethodName(SERVICE_NAME, "CreateSessionEntityType"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new SessionEntityTypesMethodDescriptorSupplier("CreateSessionEntityType"))
+                      .build();
+        }
+      }
+    }
+    return getCreateSessionEntityTypeMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+      getUpdateSessionEntityTypeMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "UpdateSessionEntityType",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+      getUpdateSessionEntityTypeMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+        getUpdateSessionEntityTypeMethod;
+    if ((getUpdateSessionEntityTypeMethod = SessionEntityTypesGrpc.getUpdateSessionEntityTypeMethod)
+        == null) {
+      synchronized (SessionEntityTypesGrpc.class) {
+        if ((getUpdateSessionEntityTypeMethod =
+                SessionEntityTypesGrpc.getUpdateSessionEntityTypeMethod)
+            == null) {
+          SessionEntityTypesGrpc.getUpdateSessionEntityTypeMethod =
+              getUpdateSessionEntityTypeMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(
+                          generateFullMethodName(SERVICE_NAME, "UpdateSessionEntityType"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new SessionEntityTypesMethodDescriptorSupplier("UpdateSessionEntityType"))
+                      .build();
+        }
+      }
+    }
+    return getUpdateSessionEntityTypeMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest,
+          com.google.protobuf.Empty>
+      getDeleteSessionEntityTypeMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "DeleteSessionEntityType",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest.class,
+      responseType = com.google.protobuf.Empty.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest,
+          com.google.protobuf.Empty>
+      getDeleteSessionEntityTypeMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest,
+            com.google.protobuf.Empty>
+        getDeleteSessionEntityTypeMethod;
+    if ((getDeleteSessionEntityTypeMethod = SessionEntityTypesGrpc.getDeleteSessionEntityTypeMethod)
+        == null) {
+      synchronized (SessionEntityTypesGrpc.class) {
+        if ((getDeleteSessionEntityTypeMethod =
+                SessionEntityTypesGrpc.getDeleteSessionEntityTypeMethod)
+            == null) {
+          SessionEntityTypesGrpc.getDeleteSessionEntityTypeMethod =
+              getDeleteSessionEntityTypeMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest,
+                          com.google.protobuf.Empty>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(
+                          generateFullMethodName(SERVICE_NAME, "DeleteSessionEntityType"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.protobuf.Empty.getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new SessionEntityTypesMethodDescriptorSupplier("DeleteSessionEntityType"))
+                      .build();
+        }
+      }
+    }
+    return getDeleteSessionEntityTypeMethod;
+  }
+
+  /** Creates a new async stub that supports all call types for the service */
+  public static SessionEntityTypesStub newStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<SessionEntityTypesStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<SessionEntityTypesStub>() {
+          @java.lang.Override
+          public SessionEntityTypesStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new SessionEntityTypesStub(channel, callOptions);
+          }
+        };
+    return SessionEntityTypesStub.newStub(factory, channel);
+  }
+
+  /**
+   * Creates a new blocking-style stub that supports unary and streaming output calls on the service
+   */
+  public static SessionEntityTypesBlockingStub newBlockingStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<SessionEntityTypesBlockingStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<SessionEntityTypesBlockingStub>() {
+          @java.lang.Override
+          public SessionEntityTypesBlockingStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new SessionEntityTypesBlockingStub(channel, callOptions);
+          }
+        };
+    return SessionEntityTypesBlockingStub.newStub(factory, channel);
+  }
+
+  /** Creates a new ListenableFuture-style stub that supports unary calls on the service */
+  public static SessionEntityTypesFutureStub newFutureStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<SessionEntityTypesFutureStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<SessionEntityTypesFutureStub>() {
+          @java.lang.Override
+          public SessionEntityTypesFutureStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new SessionEntityTypesFutureStub(channel, callOptions);
+          }
+        };
+    return SessionEntityTypesFutureStub.newStub(factory, channel);
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [SessionEntityTypes][google.cloud.dialogflow.cx.v3beta1.SessionEntityType].
+   * </pre>
+   */
+  public abstract static class SessionEntityTypesImplBase implements io.grpc.BindableService {
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all session entity types in the specified session.
+     * </pre>
+     */
+    public void listSessionEntityTypes(
+        com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest request,
+        io.grpc.stub.StreamObserver<
+                com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getListSessionEntityTypesMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified session entity type.
+     * </pre>
+     */
+    public void getSessionEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getGetSessionEntityTypeMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates a session entity type.
+     * If the specified session entity type already exists, overrides the
+     * session entity type.
+     * </pre>
+     */
+    public void createSessionEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getCreateSessionEntityTypeMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified session entity type.
+     * </pre>
+     */
+    public void updateSessionEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getUpdateSessionEntityTypeMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified session entity type.
+     * </pre>
+     */
+    public void deleteSessionEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest request,
+        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver) {
+      asyncUnimplementedUnaryCall(getDeleteSessionEntityTypeMethod(), responseObserver);
+    }
+
+    @java.lang.Override
+    public final io.grpc.ServerServiceDefinition bindService() {
+      return io.grpc.ServerServiceDefinition.builder(getServiceDescriptor())
+          .addMethod(
+              getListSessionEntityTypesMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse>(
+                      this, METHODID_LIST_SESSION_ENTITY_TYPES)))
+          .addMethod(
+              getGetSessionEntityTypeMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>(
+                      this, METHODID_GET_SESSION_ENTITY_TYPE)))
+          .addMethod(
+              getCreateSessionEntityTypeMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>(
+                      this, METHODID_CREATE_SESSION_ENTITY_TYPE)))
+          .addMethod(
+              getUpdateSessionEntityTypeMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>(
+                      this, METHODID_UPDATE_SESSION_ENTITY_TYPE)))
+          .addMethod(
+              getDeleteSessionEntityTypeMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest,
+                      com.google.protobuf.Empty>(this, METHODID_DELETE_SESSION_ENTITY_TYPE)))
+          .build();
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [SessionEntityTypes][google.cloud.dialogflow.cx.v3beta1.SessionEntityType].
+   * </pre>
+   */
+  public static final class SessionEntityTypesStub
+      extends io.grpc.stub.AbstractAsyncStub<SessionEntityTypesStub> {
+    private SessionEntityTypesStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected SessionEntityTypesStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new SessionEntityTypesStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all session entity types in the specified session.
+     * </pre>
+     */
+    public void listSessionEntityTypes(
+        com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest request,
+        io.grpc.stub.StreamObserver<
+                com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getListSessionEntityTypesMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified session entity type.
+     * </pre>
+     */
+    public void getSessionEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getGetSessionEntityTypeMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates a session entity type.
+     * If the specified session entity type already exists, overrides the
+     * session entity type.
+     * </pre>
+     */
+    public void createSessionEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getCreateSessionEntityTypeMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified session entity type.
+     * </pre>
+     */
+    public void updateSessionEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getUpdateSessionEntityTypeMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified session entity type.
+     * </pre>
+     */
+    public void deleteSessionEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest request,
+        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getDeleteSessionEntityTypeMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [SessionEntityTypes][google.cloud.dialogflow.cx.v3beta1.SessionEntityType].
+   * </pre>
+   */
+  public static final class SessionEntityTypesBlockingStub
+      extends io.grpc.stub.AbstractBlockingStub<SessionEntityTypesBlockingStub> {
+    private SessionEntityTypesBlockingStub(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected SessionEntityTypesBlockingStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new SessionEntityTypesBlockingStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all session entity types in the specified session.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse
+        listSessionEntityTypes(
+            com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest request) {
+      return blockingUnaryCall(
+          getChannel(), getListSessionEntityTypesMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified session entity type.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType getSessionEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest request) {
+      return blockingUnaryCall(
+          getChannel(), getGetSessionEntityTypeMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates a session entity type.
+     * If the specified session entity type already exists, overrides the
+     * session entity type.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType createSessionEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest request) {
+      return blockingUnaryCall(
+          getChannel(), getCreateSessionEntityTypeMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified session entity type.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType updateSessionEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest request) {
+      return blockingUnaryCall(
+          getChannel(), getUpdateSessionEntityTypeMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified session entity type.
+     * </pre>
+     */
+    public com.google.protobuf.Empty deleteSessionEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest request) {
+      return blockingUnaryCall(
+          getChannel(), getDeleteSessionEntityTypeMethod(), getCallOptions(), request);
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [SessionEntityTypes][google.cloud.dialogflow.cx.v3beta1.SessionEntityType].
+   * </pre>
+   */
+  public static final class SessionEntityTypesFutureStub
+      extends io.grpc.stub.AbstractFutureStub<SessionEntityTypesFutureStub> {
+    private SessionEntityTypesFutureStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected SessionEntityTypesFutureStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new SessionEntityTypesFutureStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all session entity types in the specified session.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse>
+        listSessionEntityTypes(
+            com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getListSessionEntityTypesMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified session entity type.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+        getSessionEntityType(
+            com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getGetSessionEntityTypeMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates a session entity type.
+     * If the specified session entity type already exists, overrides the
+     * session entity type.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+        createSessionEntityType(
+            com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getCreateSessionEntityTypeMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified session entity type.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+        updateSessionEntityType(
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getUpdateSessionEntityTypeMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified session entity type.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.protobuf.Empty>
+        deleteSessionEntityType(
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getDeleteSessionEntityTypeMethod(), getCallOptions()), request);
+    }
+  }
+
+  private static final int METHODID_LIST_SESSION_ENTITY_TYPES = 0;
+  private static final int METHODID_GET_SESSION_ENTITY_TYPE = 1;
+  private static final int METHODID_CREATE_SESSION_ENTITY_TYPE = 2;
+  private static final int METHODID_UPDATE_SESSION_ENTITY_TYPE = 3;
+  private static final int METHODID_DELETE_SESSION_ENTITY_TYPE = 4;
+
+  private static final class MethodHandlers<Req, Resp>
+      implements io.grpc.stub.ServerCalls.UnaryMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.ServerStreamingMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.ClientStreamingMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.BidiStreamingMethod<Req, Resp> {
+    private final SessionEntityTypesImplBase serviceImpl;
+    private final int methodId;
+
+    MethodHandlers(SessionEntityTypesImplBase serviceImpl, int methodId) {
+      this.serviceImpl = serviceImpl;
+      this.methodId = methodId;
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public void invoke(Req request, io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        case METHODID_LIST_SESSION_ENTITY_TYPES:
+          serviceImpl.listSessionEntityTypes(
+              (com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest) request,
+              (io.grpc.stub.StreamObserver<
+                      com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse>)
+                  responseObserver);
+          break;
+        case METHODID_GET_SESSION_ENTITY_TYPE:
+          serviceImpl.getSessionEntityType(
+              (com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest) request,
+              (io.grpc.stub.StreamObserver<
+                      com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>)
+                  responseObserver);
+          break;
+        case METHODID_CREATE_SESSION_ENTITY_TYPE:
+          serviceImpl.createSessionEntityType(
+              (com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest) request,
+              (io.grpc.stub.StreamObserver<
+                      com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>)
+                  responseObserver);
+          break;
+        case METHODID_UPDATE_SESSION_ENTITY_TYPE:
+          serviceImpl.updateSessionEntityType(
+              (com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest) request,
+              (io.grpc.stub.StreamObserver<
+                      com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>)
+                  responseObserver);
+          break;
+        case METHODID_DELETE_SESSION_ENTITY_TYPE:
+          serviceImpl.deleteSessionEntityType(
+              (com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.protobuf.Empty>) responseObserver);
+          break;
+        default:
+          throw new AssertionError();
+      }
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public io.grpc.stub.StreamObserver<Req> invoke(
+        io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        default:
+          throw new AssertionError();
+      }
+    }
+  }
+
+  private abstract static class SessionEntityTypesBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoFileDescriptorSupplier,
+          io.grpc.protobuf.ProtoServiceDescriptorSupplier {
+    SessionEntityTypesBaseDescriptorSupplier() {}
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.FileDescriptor getFileDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto.getDescriptor();
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.ServiceDescriptor getServiceDescriptor() {
+      return getFileDescriptor().findServiceByName("SessionEntityTypes");
+    }
+  }
+
+  private static final class SessionEntityTypesFileDescriptorSupplier
+      extends SessionEntityTypesBaseDescriptorSupplier {
+    SessionEntityTypesFileDescriptorSupplier() {}
+  }
+
+  private static final class SessionEntityTypesMethodDescriptorSupplier
+      extends SessionEntityTypesBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoMethodDescriptorSupplier {
+    private final String methodName;
+
+    SessionEntityTypesMethodDescriptorSupplier(String methodName) {
+      this.methodName = methodName;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.MethodDescriptor getMethodDescriptor() {
+      return getServiceDescriptor().findMethodByName(methodName);
+    }
+  }
+
+  private static volatile io.grpc.ServiceDescriptor serviceDescriptor;
+
+  public static io.grpc.ServiceDescriptor getServiceDescriptor() {
+    io.grpc.ServiceDescriptor result = serviceDescriptor;
+    if (result == null) {
+      synchronized (SessionEntityTypesGrpc.class) {
+        result = serviceDescriptor;
+        if (result == null) {
+          serviceDescriptor =
+              result =
+                  io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
+                      .setSchemaDescriptor(new SessionEntityTypesFileDescriptorSupplier())
+                      .addMethod(getListSessionEntityTypesMethod())
+                      .addMethod(getGetSessionEntityTypeMethod())
+                      .addMethod(getCreateSessionEntityTypeMethod())
+                      .addMethod(getUpdateSessionEntityTypeMethod())
+                      .addMethod(getDeleteSessionEntityTypeMethod())
+                      .build();
+        }
+      }
+    }
+    return result;
+  }
+}
diff --git a/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionsGrpc.java b/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionsGrpc.java
new file mode 100644
index 000000000..ad3ac2aac
--- /dev/null
+++ b/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionsGrpc.java
@@ -0,0 +1,736 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static io.grpc.MethodDescriptor.generateFullMethodName;
+import static io.grpc.stub.ClientCalls.asyncBidiStreamingCall;
+import static io.grpc.stub.ClientCalls.asyncUnaryCall;
+import static io.grpc.stub.ClientCalls.blockingUnaryCall;
+import static io.grpc.stub.ClientCalls.futureUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncBidiStreamingCall;
+import static io.grpc.stub.ServerCalls.asyncUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
+import static io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall;
+
+/**
+ *
+ *
+ * <pre>
+ * A session represents an interaction with a user. You retrieve user input
+ * and pass it to the [DetectIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.DetectIntent] method to determine
+ * user intent and respond.
+ * </pre>
+ */
+@javax.annotation.Generated(
+    value = "by gRPC proto compiler",
+    comments = "Source: google/cloud/dialogflow/cx/v3beta1/session.proto")
+public final class SessionsGrpc {
+
+  private SessionsGrpc() {}
+
+  public static final String SERVICE_NAME = "google.cloud.dialogflow.cx.v3beta1.Sessions";
+
+  // Static method descriptors that strictly reflect the proto.
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse>
+      getDetectIntentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "DetectIntent",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse>
+      getDetectIntentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse>
+        getDetectIntentMethod;
+    if ((getDetectIntentMethod = SessionsGrpc.getDetectIntentMethod) == null) {
+      synchronized (SessionsGrpc.class) {
+        if ((getDetectIntentMethod = SessionsGrpc.getDetectIntentMethod) == null) {
+          SessionsGrpc.getDetectIntentMethod =
+              getDetectIntentMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "DetectIntent"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(new SessionsMethodDescriptorSupplier("DetectIntent"))
+                      .build();
+        }
+      }
+    }
+    return getDetectIntentMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse>
+      getStreamingDetectIntentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "StreamingDetectIntent",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.BIDI_STREAMING)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse>
+      getStreamingDetectIntentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse>
+        getStreamingDetectIntentMethod;
+    if ((getStreamingDetectIntentMethod = SessionsGrpc.getStreamingDetectIntentMethod) == null) {
+      synchronized (SessionsGrpc.class) {
+        if ((getStreamingDetectIntentMethod = SessionsGrpc.getStreamingDetectIntentMethod)
+            == null) {
+          SessionsGrpc.getStreamingDetectIntentMethod =
+              getStreamingDetectIntentMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.BIDI_STREAMING)
+                      .setFullMethodName(
+                          generateFullMethodName(SERVICE_NAME, "StreamingDetectIntent"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new SessionsMethodDescriptorSupplier("StreamingDetectIntent"))
+                      .build();
+        }
+      }
+    }
+    return getStreamingDetectIntentMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse>
+      getMatchIntentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "MatchIntent",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse>
+      getMatchIntentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse>
+        getMatchIntentMethod;
+    if ((getMatchIntentMethod = SessionsGrpc.getMatchIntentMethod) == null) {
+      synchronized (SessionsGrpc.class) {
+        if ((getMatchIntentMethod = SessionsGrpc.getMatchIntentMethod) == null) {
+          SessionsGrpc.getMatchIntentMethod =
+              getMatchIntentMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "MatchIntent"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(new SessionsMethodDescriptorSupplier("MatchIntent"))
+                      .build();
+        }
+      }
+    }
+    return getMatchIntentMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse>
+      getFulfillIntentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "FulfillIntent",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse>
+      getFulfillIntentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse>
+        getFulfillIntentMethod;
+    if ((getFulfillIntentMethod = SessionsGrpc.getFulfillIntentMethod) == null) {
+      synchronized (SessionsGrpc.class) {
+        if ((getFulfillIntentMethod = SessionsGrpc.getFulfillIntentMethod) == null) {
+          SessionsGrpc.getFulfillIntentMethod =
+              getFulfillIntentMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "FulfillIntent"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(new SessionsMethodDescriptorSupplier("FulfillIntent"))
+                      .build();
+        }
+      }
+    }
+    return getFulfillIntentMethod;
+  }
+
+  /** Creates a new async stub that supports all call types for the service */
+  public static SessionsStub newStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<SessionsStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<SessionsStub>() {
+          @java.lang.Override
+          public SessionsStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new SessionsStub(channel, callOptions);
+          }
+        };
+    return SessionsStub.newStub(factory, channel);
+  }
+
+  /**
+   * Creates a new blocking-style stub that supports unary and streaming output calls on the service
+   */
+  public static SessionsBlockingStub newBlockingStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<SessionsBlockingStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<SessionsBlockingStub>() {
+          @java.lang.Override
+          public SessionsBlockingStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new SessionsBlockingStub(channel, callOptions);
+          }
+        };
+    return SessionsBlockingStub.newStub(factory, channel);
+  }
+
+  /** Creates a new ListenableFuture-style stub that supports unary calls on the service */
+  public static SessionsFutureStub newFutureStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<SessionsFutureStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<SessionsFutureStub>() {
+          @java.lang.Override
+          public SessionsFutureStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new SessionsFutureStub(channel, callOptions);
+          }
+        };
+    return SessionsFutureStub.newStub(factory, channel);
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * A session represents an interaction with a user. You retrieve user input
+   * and pass it to the [DetectIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.DetectIntent] method to determine
+   * user intent and respond.
+   * </pre>
+   */
+  public abstract static class SessionsImplBase implements io.grpc.BindableService {
+
+    /**
+     *
+     *
+     * <pre>
+     * Processes a natural language query and returns structured, actionable data
+     * as a result. This method is not idempotent, because it may cause session
+     * entity types to be updated, which in turn might affect results of future
+     * queries.
+     * </pre>
+     */
+    public void detectIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getDetectIntentMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Processes a natural language query in audio format in a streaming fashion
+     * and returns structured, actionable data as a result. This method is only
+     * available via the gRPC API (not REST).
+     * </pre>
+     */
+    public io.grpc.stub.StreamObserver<
+            com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest>
+        streamingDetectIntent(
+            io.grpc.stub.StreamObserver<
+                    com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse>
+                responseObserver) {
+      return asyncUnimplementedStreamingCall(getStreamingDetectIntentMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns preliminary intent match results, doesn't change the session
+     * status.
+     * </pre>
+     */
+    public void matchIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getMatchIntentMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Fulfills a matched intent returned by [MatchIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.MatchIntent].
+     * Must be called after [MatchIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.MatchIntent], with input from
+     * [MatchIntentResponse][google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse]. Otherwise, the behavior is undefined.
+     * </pre>
+     */
+    public void fulfillIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getFulfillIntentMethod(), responseObserver);
+    }
+
+    @java.lang.Override
+    public final io.grpc.ServerServiceDefinition bindService() {
+      return io.grpc.ServerServiceDefinition.builder(getServiceDescriptor())
+          .addMethod(
+              getDetectIntentMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse>(
+                      this, METHODID_DETECT_INTENT)))
+          .addMethod(
+              getStreamingDetectIntentMethod(),
+              asyncBidiStreamingCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse>(
+                      this, METHODID_STREAMING_DETECT_INTENT)))
+          .addMethod(
+              getMatchIntentMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse>(
+                      this, METHODID_MATCH_INTENT)))
+          .addMethod(
+              getFulfillIntentMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse>(
+                      this, METHODID_FULFILL_INTENT)))
+          .build();
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * A session represents an interaction with a user. You retrieve user input
+   * and pass it to the [DetectIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.DetectIntent] method to determine
+   * user intent and respond.
+   * </pre>
+   */
+  public static final class SessionsStub extends io.grpc.stub.AbstractAsyncStub<SessionsStub> {
+    private SessionsStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected SessionsStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new SessionsStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Processes a natural language query and returns structured, actionable data
+     * as a result. This method is not idempotent, because it may cause session
+     * entity types to be updated, which in turn might affect results of future
+     * queries.
+     * </pre>
+     */
+    public void detectIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getDetectIntentMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Processes a natural language query in audio format in a streaming fashion
+     * and returns structured, actionable data as a result. This method is only
+     * available via the gRPC API (not REST).
+     * </pre>
+     */
+    public io.grpc.stub.StreamObserver<
+            com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest>
+        streamingDetectIntent(
+            io.grpc.stub.StreamObserver<
+                    com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse>
+                responseObserver) {
+      return asyncBidiStreamingCall(
+          getChannel().newCall(getStreamingDetectIntentMethod(), getCallOptions()),
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns preliminary intent match results, doesn't change the session
+     * status.
+     * </pre>
+     */
+    public void matchIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getMatchIntentMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Fulfills a matched intent returned by [MatchIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.MatchIntent].
+     * Must be called after [MatchIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.MatchIntent], with input from
+     * [MatchIntentResponse][google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse]. Otherwise, the behavior is undefined.
+     * </pre>
+     */
+    public void fulfillIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getFulfillIntentMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * A session represents an interaction with a user. You retrieve user input
+   * and pass it to the [DetectIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.DetectIntent] method to determine
+   * user intent and respond.
+   * </pre>
+   */
+  public static final class SessionsBlockingStub
+      extends io.grpc.stub.AbstractBlockingStub<SessionsBlockingStub> {
+    private SessionsBlockingStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected SessionsBlockingStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new SessionsBlockingStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Processes a natural language query and returns structured, actionable data
+     * as a result. This method is not idempotent, because it may cause session
+     * entity types to be updated, which in turn might affect results of future
+     * queries.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse detectIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest request) {
+      return blockingUnaryCall(getChannel(), getDetectIntentMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns preliminary intent match results, doesn't change the session
+     * status.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse matchIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest request) {
+      return blockingUnaryCall(getChannel(), getMatchIntentMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Fulfills a matched intent returned by [MatchIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.MatchIntent].
+     * Must be called after [MatchIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.MatchIntent], with input from
+     * [MatchIntentResponse][google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse]. Otherwise, the behavior is undefined.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse fulfillIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest request) {
+      return blockingUnaryCall(getChannel(), getFulfillIntentMethod(), getCallOptions(), request);
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * A session represents an interaction with a user. You retrieve user input
+   * and pass it to the [DetectIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.DetectIntent] method to determine
+   * user intent and respond.
+   * </pre>
+   */
+  public static final class SessionsFutureStub
+      extends io.grpc.stub.AbstractFutureStub<SessionsFutureStub> {
+    private SessionsFutureStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected SessionsFutureStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new SessionsFutureStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Processes a natural language query and returns structured, actionable data
+     * as a result. This method is not idempotent, because it may cause session
+     * entity types to be updated, which in turn might affect results of future
+     * queries.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse>
+        detectIntent(com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getDetectIntentMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns preliminary intent match results, doesn't change the session
+     * status.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse>
+        matchIntent(com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getMatchIntentMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Fulfills a matched intent returned by [MatchIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.MatchIntent].
+     * Must be called after [MatchIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.MatchIntent], with input from
+     * [MatchIntentResponse][google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse]. Otherwise, the behavior is undefined.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse>
+        fulfillIntent(com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getFulfillIntentMethod(), getCallOptions()), request);
+    }
+  }
+
+  private static final int METHODID_DETECT_INTENT = 0;
+  private static final int METHODID_MATCH_INTENT = 1;
+  private static final int METHODID_FULFILL_INTENT = 2;
+  private static final int METHODID_STREAMING_DETECT_INTENT = 3;
+
+  private static final class MethodHandlers<Req, Resp>
+      implements io.grpc.stub.ServerCalls.UnaryMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.ServerStreamingMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.ClientStreamingMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.BidiStreamingMethod<Req, Resp> {
+    private final SessionsImplBase serviceImpl;
+    private final int methodId;
+
+    MethodHandlers(SessionsImplBase serviceImpl, int methodId) {
+      this.serviceImpl = serviceImpl;
+      this.methodId = methodId;
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public void invoke(Req request, io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        case METHODID_DETECT_INTENT:
+          serviceImpl.detectIntent(
+              (com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest) request,
+              (io.grpc.stub.StreamObserver<
+                      com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse>)
+                  responseObserver);
+          break;
+        case METHODID_MATCH_INTENT:
+          serviceImpl.matchIntent(
+              (com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest) request,
+              (io.grpc.stub.StreamObserver<
+                      com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse>)
+                  responseObserver);
+          break;
+        case METHODID_FULFILL_INTENT:
+          serviceImpl.fulfillIntent(
+              (com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest) request,
+              (io.grpc.stub.StreamObserver<
+                      com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse>)
+                  responseObserver);
+          break;
+        default:
+          throw new AssertionError();
+      }
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public io.grpc.stub.StreamObserver<Req> invoke(
+        io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        case METHODID_STREAMING_DETECT_INTENT:
+          return (io.grpc.stub.StreamObserver<Req>)
+              serviceImpl.streamingDetectIntent(
+                  (io.grpc.stub.StreamObserver<
+                          com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse>)
+                      responseObserver);
+        default:
+          throw new AssertionError();
+      }
+    }
+  }
+
+  private abstract static class SessionsBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoFileDescriptorSupplier,
+          io.grpc.protobuf.ProtoServiceDescriptorSupplier {
+    SessionsBaseDescriptorSupplier() {}
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.FileDescriptor getFileDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto.getDescriptor();
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.ServiceDescriptor getServiceDescriptor() {
+      return getFileDescriptor().findServiceByName("Sessions");
+    }
+  }
+
+  private static final class SessionsFileDescriptorSupplier extends SessionsBaseDescriptorSupplier {
+    SessionsFileDescriptorSupplier() {}
+  }
+
+  private static final class SessionsMethodDescriptorSupplier extends SessionsBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoMethodDescriptorSupplier {
+    private final String methodName;
+
+    SessionsMethodDescriptorSupplier(String methodName) {
+      this.methodName = methodName;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.MethodDescriptor getMethodDescriptor() {
+      return getServiceDescriptor().findMethodByName(methodName);
+    }
+  }
+
+  private static volatile io.grpc.ServiceDescriptor serviceDescriptor;
+
+  public static io.grpc.ServiceDescriptor getServiceDescriptor() {
+    io.grpc.ServiceDescriptor result = serviceDescriptor;
+    if (result == null) {
+      synchronized (SessionsGrpc.class) {
+        result = serviceDescriptor;
+        if (result == null) {
+          serviceDescriptor =
+              result =
+                  io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
+                      .setSchemaDescriptor(new SessionsFileDescriptorSupplier())
+                      .addMethod(getDetectIntentMethod())
+                      .addMethod(getStreamingDetectIntentMethod())
+                      .addMethod(getMatchIntentMethod())
+                      .addMethod(getFulfillIntentMethod())
+                      .build();
+        }
+      }
+    }
+    return result;
+  }
+}
diff --git a/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroupsGrpc.java b/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroupsGrpc.java
new file mode 100644
index 000000000..d78032c42
--- /dev/null
+++ b/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroupsGrpc.java
@@ -0,0 +1,886 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static io.grpc.MethodDescriptor.generateFullMethodName;
+import static io.grpc.stub.ClientCalls.asyncUnaryCall;
+import static io.grpc.stub.ClientCalls.blockingUnaryCall;
+import static io.grpc.stub.ClientCalls.futureUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall;
+
+/**
+ *
+ *
+ * <pre>
+ * Service for managing [TransitionRouteGroups][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+ * </pre>
+ */
+@javax.annotation.Generated(
+    value = "by gRPC proto compiler",
+    comments = "Source: google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto")
+public final class TransitionRouteGroupsGrpc {
+
+  private TransitionRouteGroupsGrpc() {}
+
+  public static final String SERVICE_NAME =
+      "google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups";
+
+  // Static method descriptors that strictly reflect the proto.
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse>
+      getListTransitionRouteGroupsMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "ListTransitionRouteGroups",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse>
+      getListTransitionRouteGroupsMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse>
+        getListTransitionRouteGroupsMethod;
+    if ((getListTransitionRouteGroupsMethod =
+            TransitionRouteGroupsGrpc.getListTransitionRouteGroupsMethod)
+        == null) {
+      synchronized (TransitionRouteGroupsGrpc.class) {
+        if ((getListTransitionRouteGroupsMethod =
+                TransitionRouteGroupsGrpc.getListTransitionRouteGroupsMethod)
+            == null) {
+          TransitionRouteGroupsGrpc.getListTransitionRouteGroupsMethod =
+              getListTransitionRouteGroupsMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(
+                          generateFullMethodName(SERVICE_NAME, "ListTransitionRouteGroups"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1
+                                  .ListTransitionRouteGroupsRequest.getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1
+                                  .ListTransitionRouteGroupsResponse.getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new TransitionRouteGroupsMethodDescriptorSupplier(
+                              "ListTransitionRouteGroups"))
+                      .build();
+        }
+      }
+    }
+    return getListTransitionRouteGroupsMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+      getGetTransitionRouteGroupMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GetTransitionRouteGroup",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+      getGetTransitionRouteGroupMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+        getGetTransitionRouteGroupMethod;
+    if ((getGetTransitionRouteGroupMethod =
+            TransitionRouteGroupsGrpc.getGetTransitionRouteGroupMethod)
+        == null) {
+      synchronized (TransitionRouteGroupsGrpc.class) {
+        if ((getGetTransitionRouteGroupMethod =
+                TransitionRouteGroupsGrpc.getGetTransitionRouteGroupMethod)
+            == null) {
+          TransitionRouteGroupsGrpc.getGetTransitionRouteGroupMethod =
+              getGetTransitionRouteGroupMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(
+                          generateFullMethodName(SERVICE_NAME, "GetTransitionRouteGroup"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new TransitionRouteGroupsMethodDescriptorSupplier(
+                              "GetTransitionRouteGroup"))
+                      .build();
+        }
+      }
+    }
+    return getGetTransitionRouteGroupMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+      getCreateTransitionRouteGroupMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "CreateTransitionRouteGroup",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+      getCreateTransitionRouteGroupMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+        getCreateTransitionRouteGroupMethod;
+    if ((getCreateTransitionRouteGroupMethod =
+            TransitionRouteGroupsGrpc.getCreateTransitionRouteGroupMethod)
+        == null) {
+      synchronized (TransitionRouteGroupsGrpc.class) {
+        if ((getCreateTransitionRouteGroupMethod =
+                TransitionRouteGroupsGrpc.getCreateTransitionRouteGroupMethod)
+            == null) {
+          TransitionRouteGroupsGrpc.getCreateTransitionRouteGroupMethod =
+              getCreateTransitionRouteGroupMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(
+                          generateFullMethodName(SERVICE_NAME, "CreateTransitionRouteGroup"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1
+                                  .CreateTransitionRouteGroupRequest.getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new TransitionRouteGroupsMethodDescriptorSupplier(
+                              "CreateTransitionRouteGroup"))
+                      .build();
+        }
+      }
+    }
+    return getCreateTransitionRouteGroupMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+      getUpdateTransitionRouteGroupMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "UpdateTransitionRouteGroup",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+      getUpdateTransitionRouteGroupMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+        getUpdateTransitionRouteGroupMethod;
+    if ((getUpdateTransitionRouteGroupMethod =
+            TransitionRouteGroupsGrpc.getUpdateTransitionRouteGroupMethod)
+        == null) {
+      synchronized (TransitionRouteGroupsGrpc.class) {
+        if ((getUpdateTransitionRouteGroupMethod =
+                TransitionRouteGroupsGrpc.getUpdateTransitionRouteGroupMethod)
+            == null) {
+          TransitionRouteGroupsGrpc.getUpdateTransitionRouteGroupMethod =
+              getUpdateTransitionRouteGroupMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(
+                          generateFullMethodName(SERVICE_NAME, "UpdateTransitionRouteGroup"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1
+                                  .UpdateTransitionRouteGroupRequest.getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new TransitionRouteGroupsMethodDescriptorSupplier(
+                              "UpdateTransitionRouteGroup"))
+                      .build();
+        }
+      }
+    }
+    return getUpdateTransitionRouteGroupMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest,
+          com.google.protobuf.Empty>
+      getDeleteTransitionRouteGroupMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "DeleteTransitionRouteGroup",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest.class,
+      responseType = com.google.protobuf.Empty.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest,
+          com.google.protobuf.Empty>
+      getDeleteTransitionRouteGroupMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest,
+            com.google.protobuf.Empty>
+        getDeleteTransitionRouteGroupMethod;
+    if ((getDeleteTransitionRouteGroupMethod =
+            TransitionRouteGroupsGrpc.getDeleteTransitionRouteGroupMethod)
+        == null) {
+      synchronized (TransitionRouteGroupsGrpc.class) {
+        if ((getDeleteTransitionRouteGroupMethod =
+                TransitionRouteGroupsGrpc.getDeleteTransitionRouteGroupMethod)
+            == null) {
+          TransitionRouteGroupsGrpc.getDeleteTransitionRouteGroupMethod =
+              getDeleteTransitionRouteGroupMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest,
+                          com.google.protobuf.Empty>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(
+                          generateFullMethodName(SERVICE_NAME, "DeleteTransitionRouteGroup"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1
+                                  .DeleteTransitionRouteGroupRequest.getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.protobuf.Empty.getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new TransitionRouteGroupsMethodDescriptorSupplier(
+                              "DeleteTransitionRouteGroup"))
+                      .build();
+        }
+      }
+    }
+    return getDeleteTransitionRouteGroupMethod;
+  }
+
+  /** Creates a new async stub that supports all call types for the service */
+  public static TransitionRouteGroupsStub newStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<TransitionRouteGroupsStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<TransitionRouteGroupsStub>() {
+          @java.lang.Override
+          public TransitionRouteGroupsStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new TransitionRouteGroupsStub(channel, callOptions);
+          }
+        };
+    return TransitionRouteGroupsStub.newStub(factory, channel);
+  }
+
+  /**
+   * Creates a new blocking-style stub that supports unary and streaming output calls on the service
+   */
+  public static TransitionRouteGroupsBlockingStub newBlockingStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<TransitionRouteGroupsBlockingStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<TransitionRouteGroupsBlockingStub>() {
+          @java.lang.Override
+          public TransitionRouteGroupsBlockingStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new TransitionRouteGroupsBlockingStub(channel, callOptions);
+          }
+        };
+    return TransitionRouteGroupsBlockingStub.newStub(factory, channel);
+  }
+
+  /** Creates a new ListenableFuture-style stub that supports unary calls on the service */
+  public static TransitionRouteGroupsFutureStub newFutureStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<TransitionRouteGroupsFutureStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<TransitionRouteGroupsFutureStub>() {
+          @java.lang.Override
+          public TransitionRouteGroupsFutureStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new TransitionRouteGroupsFutureStub(channel, callOptions);
+          }
+        };
+    return TransitionRouteGroupsFutureStub.newStub(factory, channel);
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [TransitionRouteGroups][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   * </pre>
+   */
+  public abstract static class TransitionRouteGroupsImplBase implements io.grpc.BindableService {
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all transition route groups in the specified flow.
+     * </pre>
+     */
+    public void listTransitionRouteGroups(
+        com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest request,
+        io.grpc.stub.StreamObserver<
+                com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getListTransitionRouteGroupsMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * </pre>
+     */
+    public void getTransitionRouteGroup(
+        com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getGetTransitionRouteGroupMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates an [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] in the specified flow.
+     * </pre>
+     */
+    public void createTransitionRouteGroup(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getCreateTransitionRouteGroupMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * </pre>
+     */
+    public void updateTransitionRouteGroup(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getUpdateTransitionRouteGroupMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * </pre>
+     */
+    public void deleteTransitionRouteGroup(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest request,
+        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver) {
+      asyncUnimplementedUnaryCall(getDeleteTransitionRouteGroupMethod(), responseObserver);
+    }
+
+    @java.lang.Override
+    public final io.grpc.ServerServiceDefinition bindService() {
+      return io.grpc.ServerServiceDefinition.builder(getServiceDescriptor())
+          .addMethod(
+              getListTransitionRouteGroupsMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse>(
+                      this, METHODID_LIST_TRANSITION_ROUTE_GROUPS)))
+          .addMethod(
+              getGetTransitionRouteGroupMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>(
+                      this, METHODID_GET_TRANSITION_ROUTE_GROUP)))
+          .addMethod(
+              getCreateTransitionRouteGroupMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>(
+                      this, METHODID_CREATE_TRANSITION_ROUTE_GROUP)))
+          .addMethod(
+              getUpdateTransitionRouteGroupMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>(
+                      this, METHODID_UPDATE_TRANSITION_ROUTE_GROUP)))
+          .addMethod(
+              getDeleteTransitionRouteGroupMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest,
+                      com.google.protobuf.Empty>(this, METHODID_DELETE_TRANSITION_ROUTE_GROUP)))
+          .build();
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [TransitionRouteGroups][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   * </pre>
+   */
+  public static final class TransitionRouteGroupsStub
+      extends io.grpc.stub.AbstractAsyncStub<TransitionRouteGroupsStub> {
+    private TransitionRouteGroupsStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected TransitionRouteGroupsStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new TransitionRouteGroupsStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all transition route groups in the specified flow.
+     * </pre>
+     */
+    public void listTransitionRouteGroups(
+        com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest request,
+        io.grpc.stub.StreamObserver<
+                com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getListTransitionRouteGroupsMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * </pre>
+     */
+    public void getTransitionRouteGroup(
+        com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getGetTransitionRouteGroupMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates an [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] in the specified flow.
+     * </pre>
+     */
+    public void createTransitionRouteGroup(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getCreateTransitionRouteGroupMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * </pre>
+     */
+    public void updateTransitionRouteGroup(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getUpdateTransitionRouteGroupMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * </pre>
+     */
+    public void deleteTransitionRouteGroup(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest request,
+        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getDeleteTransitionRouteGroupMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [TransitionRouteGroups][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   * </pre>
+   */
+  public static final class TransitionRouteGroupsBlockingStub
+      extends io.grpc.stub.AbstractBlockingStub<TransitionRouteGroupsBlockingStub> {
+    private TransitionRouteGroupsBlockingStub(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected TransitionRouteGroupsBlockingStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new TransitionRouteGroupsBlockingStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all transition route groups in the specified flow.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse
+        listTransitionRouteGroups(
+            com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest request) {
+      return blockingUnaryCall(
+          getChannel(), getListTransitionRouteGroupsMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup getTransitionRouteGroup(
+        com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest request) {
+      return blockingUnaryCall(
+          getChannel(), getGetTransitionRouteGroupMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates an [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] in the specified flow.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup createTransitionRouteGroup(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest request) {
+      return blockingUnaryCall(
+          getChannel(), getCreateTransitionRouteGroupMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup updateTransitionRouteGroup(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest request) {
+      return blockingUnaryCall(
+          getChannel(), getUpdateTransitionRouteGroupMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * </pre>
+     */
+    public com.google.protobuf.Empty deleteTransitionRouteGroup(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest request) {
+      return blockingUnaryCall(
+          getChannel(), getDeleteTransitionRouteGroupMethod(), getCallOptions(), request);
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [TransitionRouteGroups][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   * </pre>
+   */
+  public static final class TransitionRouteGroupsFutureStub
+      extends io.grpc.stub.AbstractFutureStub<TransitionRouteGroupsFutureStub> {
+    private TransitionRouteGroupsFutureStub(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected TransitionRouteGroupsFutureStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new TransitionRouteGroupsFutureStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all transition route groups in the specified flow.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse>
+        listTransitionRouteGroups(
+            com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getListTransitionRouteGroupsMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+        getTransitionRouteGroup(
+            com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getGetTransitionRouteGroupMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates an [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] in the specified flow.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+        createTransitionRouteGroup(
+            com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getCreateTransitionRouteGroupMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+        updateTransitionRouteGroup(
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getUpdateTransitionRouteGroupMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.protobuf.Empty>
+        deleteTransitionRouteGroup(
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getDeleteTransitionRouteGroupMethod(), getCallOptions()), request);
+    }
+  }
+
+  private static final int METHODID_LIST_TRANSITION_ROUTE_GROUPS = 0;
+  private static final int METHODID_GET_TRANSITION_ROUTE_GROUP = 1;
+  private static final int METHODID_CREATE_TRANSITION_ROUTE_GROUP = 2;
+  private static final int METHODID_UPDATE_TRANSITION_ROUTE_GROUP = 3;
+  private static final int METHODID_DELETE_TRANSITION_ROUTE_GROUP = 4;
+
+  private static final class MethodHandlers<Req, Resp>
+      implements io.grpc.stub.ServerCalls.UnaryMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.ServerStreamingMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.ClientStreamingMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.BidiStreamingMethod<Req, Resp> {
+    private final TransitionRouteGroupsImplBase serviceImpl;
+    private final int methodId;
+
+    MethodHandlers(TransitionRouteGroupsImplBase serviceImpl, int methodId) {
+      this.serviceImpl = serviceImpl;
+      this.methodId = methodId;
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public void invoke(Req request, io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        case METHODID_LIST_TRANSITION_ROUTE_GROUPS:
+          serviceImpl.listTransitionRouteGroups(
+              (com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest) request,
+              (io.grpc.stub.StreamObserver<
+                      com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse>)
+                  responseObserver);
+          break;
+        case METHODID_GET_TRANSITION_ROUTE_GROUP:
+          serviceImpl.getTransitionRouteGroup(
+              (com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest) request,
+              (io.grpc.stub.StreamObserver<
+                      com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>)
+                  responseObserver);
+          break;
+        case METHODID_CREATE_TRANSITION_ROUTE_GROUP:
+          serviceImpl.createTransitionRouteGroup(
+              (com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest) request,
+              (io.grpc.stub.StreamObserver<
+                      com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>)
+                  responseObserver);
+          break;
+        case METHODID_UPDATE_TRANSITION_ROUTE_GROUP:
+          serviceImpl.updateTransitionRouteGroup(
+              (com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest) request,
+              (io.grpc.stub.StreamObserver<
+                      com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>)
+                  responseObserver);
+          break;
+        case METHODID_DELETE_TRANSITION_ROUTE_GROUP:
+          serviceImpl.deleteTransitionRouteGroup(
+              (com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.protobuf.Empty>) responseObserver);
+          break;
+        default:
+          throw new AssertionError();
+      }
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public io.grpc.stub.StreamObserver<Req> invoke(
+        io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        default:
+          throw new AssertionError();
+      }
+    }
+  }
+
+  private abstract static class TransitionRouteGroupsBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoFileDescriptorSupplier,
+          io.grpc.protobuf.ProtoServiceDescriptorSupplier {
+    TransitionRouteGroupsBaseDescriptorSupplier() {}
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.FileDescriptor getFileDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto.getDescriptor();
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.ServiceDescriptor getServiceDescriptor() {
+      return getFileDescriptor().findServiceByName("TransitionRouteGroups");
+    }
+  }
+
+  private static final class TransitionRouteGroupsFileDescriptorSupplier
+      extends TransitionRouteGroupsBaseDescriptorSupplier {
+    TransitionRouteGroupsFileDescriptorSupplier() {}
+  }
+
+  private static final class TransitionRouteGroupsMethodDescriptorSupplier
+      extends TransitionRouteGroupsBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoMethodDescriptorSupplier {
+    private final String methodName;
+
+    TransitionRouteGroupsMethodDescriptorSupplier(String methodName) {
+      this.methodName = methodName;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.MethodDescriptor getMethodDescriptor() {
+      return getServiceDescriptor().findMethodByName(methodName);
+    }
+  }
+
+  private static volatile io.grpc.ServiceDescriptor serviceDescriptor;
+
+  public static io.grpc.ServiceDescriptor getServiceDescriptor() {
+    io.grpc.ServiceDescriptor result = serviceDescriptor;
+    if (result == null) {
+      synchronized (TransitionRouteGroupsGrpc.class) {
+        result = serviceDescriptor;
+        if (result == null) {
+          serviceDescriptor =
+              result =
+                  io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
+                      .setSchemaDescriptor(new TransitionRouteGroupsFileDescriptorSupplier())
+                      .addMethod(getListTransitionRouteGroupsMethod())
+                      .addMethod(getGetTransitionRouteGroupMethod())
+                      .addMethod(getCreateTransitionRouteGroupMethod())
+                      .addMethod(getUpdateTransitionRouteGroupMethod())
+                      .addMethod(getDeleteTransitionRouteGroupMethod())
+                      .build();
+        }
+      }
+    }
+    return result;
+  }
+}
diff --git a/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VersionsGrpc.java b/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VersionsGrpc.java
new file mode 100644
index 000000000..66cebc75c
--- /dev/null
+++ b/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VersionsGrpc.java
@@ -0,0 +1,923 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static io.grpc.MethodDescriptor.generateFullMethodName;
+import static io.grpc.stub.ClientCalls.asyncUnaryCall;
+import static io.grpc.stub.ClientCalls.blockingUnaryCall;
+import static io.grpc.stub.ClientCalls.futureUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall;
+
+/**
+ *
+ *
+ * <pre>
+ * Service for managing [Versions][google.cloud.dialogflow.cx.v3beta1.Version].
+ * </pre>
+ */
+@javax.annotation.Generated(
+    value = "by gRPC proto compiler",
+    comments = "Source: google/cloud/dialogflow/cx/v3beta1/version.proto")
+public final class VersionsGrpc {
+
+  private VersionsGrpc() {}
+
+  public static final String SERVICE_NAME = "google.cloud.dialogflow.cx.v3beta1.Versions";
+
+  // Static method descriptors that strictly reflect the proto.
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse>
+      getListVersionsMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "ListVersions",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse>
+      getListVersionsMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse>
+        getListVersionsMethod;
+    if ((getListVersionsMethod = VersionsGrpc.getListVersionsMethod) == null) {
+      synchronized (VersionsGrpc.class) {
+        if ((getListVersionsMethod = VersionsGrpc.getListVersionsMethod) == null) {
+          VersionsGrpc.getListVersionsMethod =
+              getListVersionsMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "ListVersions"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(new VersionsMethodDescriptorSupplier("ListVersions"))
+                      .build();
+        }
+      }
+    }
+    return getListVersionsMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Version>
+      getGetVersionMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GetVersion",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.Version.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Version>
+      getGetVersionMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.Version>
+        getGetVersionMethod;
+    if ((getGetVersionMethod = VersionsGrpc.getGetVersionMethod) == null) {
+      synchronized (VersionsGrpc.class) {
+        if ((getGetVersionMethod = VersionsGrpc.getGetVersionMethod) == null) {
+          VersionsGrpc.getGetVersionMethod =
+              getGetVersionMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.Version>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "GetVersion"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.Version.getDefaultInstance()))
+                      .setSchemaDescriptor(new VersionsMethodDescriptorSupplier("GetVersion"))
+                      .build();
+        }
+      }
+    }
+    return getGetVersionMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest,
+          com.google.longrunning.Operation>
+      getCreateVersionMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "CreateVersion",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest.class,
+      responseType = com.google.longrunning.Operation.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest,
+          com.google.longrunning.Operation>
+      getCreateVersionMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest,
+            com.google.longrunning.Operation>
+        getCreateVersionMethod;
+    if ((getCreateVersionMethod = VersionsGrpc.getCreateVersionMethod) == null) {
+      synchronized (VersionsGrpc.class) {
+        if ((getCreateVersionMethod = VersionsGrpc.getCreateVersionMethod) == null) {
+          VersionsGrpc.getCreateVersionMethod =
+              getCreateVersionMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest,
+                          com.google.longrunning.Operation>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "CreateVersion"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.longrunning.Operation.getDefaultInstance()))
+                      .setSchemaDescriptor(new VersionsMethodDescriptorSupplier("CreateVersion"))
+                      .build();
+        }
+      }
+    }
+    return getCreateVersionMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Version>
+      getUpdateVersionMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "UpdateVersion",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.Version.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Version>
+      getUpdateVersionMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.Version>
+        getUpdateVersionMethod;
+    if ((getUpdateVersionMethod = VersionsGrpc.getUpdateVersionMethod) == null) {
+      synchronized (VersionsGrpc.class) {
+        if ((getUpdateVersionMethod = VersionsGrpc.getUpdateVersionMethod) == null) {
+          VersionsGrpc.getUpdateVersionMethod =
+              getUpdateVersionMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.Version>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "UpdateVersion"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.Version.getDefaultInstance()))
+                      .setSchemaDescriptor(new VersionsMethodDescriptorSupplier("UpdateVersion"))
+                      .build();
+        }
+      }
+    }
+    return getUpdateVersionMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest, com.google.protobuf.Empty>
+      getDeleteVersionMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "DeleteVersion",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest.class,
+      responseType = com.google.protobuf.Empty.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest, com.google.protobuf.Empty>
+      getDeleteVersionMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest, com.google.protobuf.Empty>
+        getDeleteVersionMethod;
+    if ((getDeleteVersionMethod = VersionsGrpc.getDeleteVersionMethod) == null) {
+      synchronized (VersionsGrpc.class) {
+        if ((getDeleteVersionMethod = VersionsGrpc.getDeleteVersionMethod) == null) {
+          VersionsGrpc.getDeleteVersionMethod =
+              getDeleteVersionMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest,
+                          com.google.protobuf.Empty>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "DeleteVersion"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.protobuf.Empty.getDefaultInstance()))
+                      .setSchemaDescriptor(new VersionsMethodDescriptorSupplier("DeleteVersion"))
+                      .build();
+        }
+      }
+    }
+    return getDeleteVersionMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest,
+          com.google.longrunning.Operation>
+      getLoadVersionMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "LoadVersion",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest.class,
+      responseType = com.google.longrunning.Operation.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest,
+          com.google.longrunning.Operation>
+      getLoadVersionMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest,
+            com.google.longrunning.Operation>
+        getLoadVersionMethod;
+    if ((getLoadVersionMethod = VersionsGrpc.getLoadVersionMethod) == null) {
+      synchronized (VersionsGrpc.class) {
+        if ((getLoadVersionMethod = VersionsGrpc.getLoadVersionMethod) == null) {
+          VersionsGrpc.getLoadVersionMethod =
+              getLoadVersionMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest,
+                          com.google.longrunning.Operation>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "LoadVersion"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.longrunning.Operation.getDefaultInstance()))
+                      .setSchemaDescriptor(new VersionsMethodDescriptorSupplier("LoadVersion"))
+                      .build();
+        }
+      }
+    }
+    return getLoadVersionMethod;
+  }
+
+  /** Creates a new async stub that supports all call types for the service */
+  public static VersionsStub newStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<VersionsStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<VersionsStub>() {
+          @java.lang.Override
+          public VersionsStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new VersionsStub(channel, callOptions);
+          }
+        };
+    return VersionsStub.newStub(factory, channel);
+  }
+
+  /**
+   * Creates a new blocking-style stub that supports unary and streaming output calls on the service
+   */
+  public static VersionsBlockingStub newBlockingStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<VersionsBlockingStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<VersionsBlockingStub>() {
+          @java.lang.Override
+          public VersionsBlockingStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new VersionsBlockingStub(channel, callOptions);
+          }
+        };
+    return VersionsBlockingStub.newStub(factory, channel);
+  }
+
+  /** Creates a new ListenableFuture-style stub that supports unary calls on the service */
+  public static VersionsFutureStub newFutureStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<VersionsFutureStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<VersionsFutureStub>() {
+          @java.lang.Override
+          public VersionsFutureStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new VersionsFutureStub(channel, callOptions);
+          }
+        };
+    return VersionsFutureStub.newStub(factory, channel);
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Versions][google.cloud.dialogflow.cx.v3beta1.Version].
+   * </pre>
+   */
+  public abstract static class VersionsImplBase implements io.grpc.BindableService {
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all versions in the specified [Flow][google.cloud.dialogflow.cx.v3beta1.Flow].
+     * </pre>
+     */
+    public void listVersions(
+        com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getListVersionsMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+     * </pre>
+     */
+    public void getVersion(
+        com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Version>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getGetVersionMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates a [Version][google.cloud.dialogflow.cx.v3beta1.Version] in the specified [Flow][google.cloud.dialogflow.cx.v3beta1.Flow].
+     * </pre>
+     */
+    public void createVersion(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      asyncUnimplementedUnaryCall(getCreateVersionMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+     * </pre>
+     */
+    public void updateVersion(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Version>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getUpdateVersionMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+     * </pre>
+     */
+    public void deleteVersion(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest request,
+        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver) {
+      asyncUnimplementedUnaryCall(getDeleteVersionMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Loads a specified version to draft version.
+     * </pre>
+     */
+    public void loadVersion(
+        com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      asyncUnimplementedUnaryCall(getLoadVersionMethod(), responseObserver);
+    }
+
+    @java.lang.Override
+    public final io.grpc.ServerServiceDefinition bindService() {
+      return io.grpc.ServerServiceDefinition.builder(getServiceDescriptor())
+          .addMethod(
+              getListVersionsMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse>(
+                      this, METHODID_LIST_VERSIONS)))
+          .addMethod(
+              getGetVersionMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.Version>(this, METHODID_GET_VERSION)))
+          .addMethod(
+              getCreateVersionMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest,
+                      com.google.longrunning.Operation>(this, METHODID_CREATE_VERSION)))
+          .addMethod(
+              getUpdateVersionMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.Version>(
+                      this, METHODID_UPDATE_VERSION)))
+          .addMethod(
+              getDeleteVersionMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest,
+                      com.google.protobuf.Empty>(this, METHODID_DELETE_VERSION)))
+          .addMethod(
+              getLoadVersionMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest,
+                      com.google.longrunning.Operation>(this, METHODID_LOAD_VERSION)))
+          .build();
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Versions][google.cloud.dialogflow.cx.v3beta1.Version].
+   * </pre>
+   */
+  public static final class VersionsStub extends io.grpc.stub.AbstractAsyncStub<VersionsStub> {
+    private VersionsStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected VersionsStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new VersionsStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all versions in the specified [Flow][google.cloud.dialogflow.cx.v3beta1.Flow].
+     * </pre>
+     */
+    public void listVersions(
+        com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getListVersionsMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+     * </pre>
+     */
+    public void getVersion(
+        com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Version>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getGetVersionMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates a [Version][google.cloud.dialogflow.cx.v3beta1.Version] in the specified [Flow][google.cloud.dialogflow.cx.v3beta1.Flow].
+     * </pre>
+     */
+    public void createVersion(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getCreateVersionMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+     * </pre>
+     */
+    public void updateVersion(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Version>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getUpdateVersionMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+     * </pre>
+     */
+    public void deleteVersion(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest request,
+        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getDeleteVersionMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Loads a specified version to draft version.
+     * </pre>
+     */
+    public void loadVersion(
+        com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getLoadVersionMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Versions][google.cloud.dialogflow.cx.v3beta1.Version].
+   * </pre>
+   */
+  public static final class VersionsBlockingStub
+      extends io.grpc.stub.AbstractBlockingStub<VersionsBlockingStub> {
+    private VersionsBlockingStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected VersionsBlockingStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new VersionsBlockingStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all versions in the specified [Flow][google.cloud.dialogflow.cx.v3beta1.Flow].
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse listVersions(
+        com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest request) {
+      return blockingUnaryCall(getChannel(), getListVersionsMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Version getVersion(
+        com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest request) {
+      return blockingUnaryCall(getChannel(), getGetVersionMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates a [Version][google.cloud.dialogflow.cx.v3beta1.Version] in the specified [Flow][google.cloud.dialogflow.cx.v3beta1.Flow].
+     * </pre>
+     */
+    public com.google.longrunning.Operation createVersion(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest request) {
+      return blockingUnaryCall(getChannel(), getCreateVersionMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Version updateVersion(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest request) {
+      return blockingUnaryCall(getChannel(), getUpdateVersionMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+     * </pre>
+     */
+    public com.google.protobuf.Empty deleteVersion(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest request) {
+      return blockingUnaryCall(getChannel(), getDeleteVersionMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Loads a specified version to draft version.
+     * </pre>
+     */
+    public com.google.longrunning.Operation loadVersion(
+        com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest request) {
+      return blockingUnaryCall(getChannel(), getLoadVersionMethod(), getCallOptions(), request);
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Versions][google.cloud.dialogflow.cx.v3beta1.Version].
+   * </pre>
+   */
+  public static final class VersionsFutureStub
+      extends io.grpc.stub.AbstractFutureStub<VersionsFutureStub> {
+    private VersionsFutureStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected VersionsFutureStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new VersionsFutureStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all versions in the specified [Flow][google.cloud.dialogflow.cx.v3beta1.Flow].
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse>
+        listVersions(com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getListVersionsMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.Version>
+        getVersion(com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getGetVersionMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates a [Version][google.cloud.dialogflow.cx.v3beta1.Version] in the specified [Flow][google.cloud.dialogflow.cx.v3beta1.Flow].
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.longrunning.Operation>
+        createVersion(com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getCreateVersionMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.Version>
+        updateVersion(com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getUpdateVersionMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.protobuf.Empty>
+        deleteVersion(com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getDeleteVersionMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Loads a specified version to draft version.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.longrunning.Operation>
+        loadVersion(com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getLoadVersionMethod(), getCallOptions()), request);
+    }
+  }
+
+  private static final int METHODID_LIST_VERSIONS = 0;
+  private static final int METHODID_GET_VERSION = 1;
+  private static final int METHODID_CREATE_VERSION = 2;
+  private static final int METHODID_UPDATE_VERSION = 3;
+  private static final int METHODID_DELETE_VERSION = 4;
+  private static final int METHODID_LOAD_VERSION = 5;
+
+  private static final class MethodHandlers<Req, Resp>
+      implements io.grpc.stub.ServerCalls.UnaryMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.ServerStreamingMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.ClientStreamingMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.BidiStreamingMethod<Req, Resp> {
+    private final VersionsImplBase serviceImpl;
+    private final int methodId;
+
+    MethodHandlers(VersionsImplBase serviceImpl, int methodId) {
+      this.serviceImpl = serviceImpl;
+      this.methodId = methodId;
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public void invoke(Req request, io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        case METHODID_LIST_VERSIONS:
+          serviceImpl.listVersions(
+              (com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest) request,
+              (io.grpc.stub.StreamObserver<
+                      com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse>)
+                  responseObserver);
+          break;
+        case METHODID_GET_VERSION:
+          serviceImpl.getVersion(
+              (com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Version>)
+                  responseObserver);
+          break;
+        case METHODID_CREATE_VERSION:
+          serviceImpl.createVersion(
+              (com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.longrunning.Operation>) responseObserver);
+          break;
+        case METHODID_UPDATE_VERSION:
+          serviceImpl.updateVersion(
+              (com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Version>)
+                  responseObserver);
+          break;
+        case METHODID_DELETE_VERSION:
+          serviceImpl.deleteVersion(
+              (com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.protobuf.Empty>) responseObserver);
+          break;
+        case METHODID_LOAD_VERSION:
+          serviceImpl.loadVersion(
+              (com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.longrunning.Operation>) responseObserver);
+          break;
+        default:
+          throw new AssertionError();
+      }
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public io.grpc.stub.StreamObserver<Req> invoke(
+        io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        default:
+          throw new AssertionError();
+      }
+    }
+  }
+
+  private abstract static class VersionsBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoFileDescriptorSupplier,
+          io.grpc.protobuf.ProtoServiceDescriptorSupplier {
+    VersionsBaseDescriptorSupplier() {}
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.FileDescriptor getFileDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto.getDescriptor();
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.ServiceDescriptor getServiceDescriptor() {
+      return getFileDescriptor().findServiceByName("Versions");
+    }
+  }
+
+  private static final class VersionsFileDescriptorSupplier extends VersionsBaseDescriptorSupplier {
+    VersionsFileDescriptorSupplier() {}
+  }
+
+  private static final class VersionsMethodDescriptorSupplier extends VersionsBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoMethodDescriptorSupplier {
+    private final String methodName;
+
+    VersionsMethodDescriptorSupplier(String methodName) {
+      this.methodName = methodName;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.MethodDescriptor getMethodDescriptor() {
+      return getServiceDescriptor().findMethodByName(methodName);
+    }
+  }
+
+  private static volatile io.grpc.ServiceDescriptor serviceDescriptor;
+
+  public static io.grpc.ServiceDescriptor getServiceDescriptor() {
+    io.grpc.ServiceDescriptor result = serviceDescriptor;
+    if (result == null) {
+      synchronized (VersionsGrpc.class) {
+        result = serviceDescriptor;
+        if (result == null) {
+          serviceDescriptor =
+              result =
+                  io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
+                      .setSchemaDescriptor(new VersionsFileDescriptorSupplier())
+                      .addMethod(getListVersionsMethod())
+                      .addMethod(getGetVersionMethod())
+                      .addMethod(getCreateVersionMethod())
+                      .addMethod(getUpdateVersionMethod())
+                      .addMethod(getDeleteVersionMethod())
+                      .addMethod(getLoadVersionMethod())
+                      .build();
+        }
+      }
+    }
+    return result;
+  }
+}
diff --git a/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhooksGrpc.java b/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhooksGrpc.java
new file mode 100644
index 000000000..7dacfd048
--- /dev/null
+++ b/grpc-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhooksGrpc.java
@@ -0,0 +1,816 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import static io.grpc.MethodDescriptor.generateFullMethodName;
+import static io.grpc.stub.ClientCalls.asyncUnaryCall;
+import static io.grpc.stub.ClientCalls.blockingUnaryCall;
+import static io.grpc.stub.ClientCalls.futureUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall;
+
+/**
+ *
+ *
+ * <pre>
+ * Service for managing [Webhooks][google.cloud.dialogflow.cx.v3beta1.Webhook].
+ * </pre>
+ */
+@javax.annotation.Generated(
+    value = "by gRPC proto compiler",
+    comments = "Source: google/cloud/dialogflow/cx/v3beta1/webhook.proto")
+public final class WebhooksGrpc {
+
+  private WebhooksGrpc() {}
+
+  public static final String SERVICE_NAME = "google.cloud.dialogflow.cx.v3beta1.Webhooks";
+
+  // Static method descriptors that strictly reflect the proto.
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse>
+      getListWebhooksMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "ListWebhooks",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse>
+      getListWebhooksMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse>
+        getListWebhooksMethod;
+    if ((getListWebhooksMethod = WebhooksGrpc.getListWebhooksMethod) == null) {
+      synchronized (WebhooksGrpc.class) {
+        if ((getListWebhooksMethod = WebhooksGrpc.getListWebhooksMethod) == null) {
+          WebhooksGrpc.getListWebhooksMethod =
+              getListWebhooksMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "ListWebhooks"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(new WebhooksMethodDescriptorSupplier("ListWebhooks"))
+                      .build();
+        }
+      }
+    }
+    return getListWebhooksMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Webhook>
+      getGetWebhookMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GetWebhook",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.Webhook.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Webhook>
+      getGetWebhookMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook>
+        getGetWebhookMethod;
+    if ((getGetWebhookMethod = WebhooksGrpc.getGetWebhookMethod) == null) {
+      synchronized (WebhooksGrpc.class) {
+        if ((getGetWebhookMethod = WebhooksGrpc.getGetWebhookMethod) == null) {
+          WebhooksGrpc.getGetWebhookMethod =
+              getGetWebhookMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.Webhook>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "GetWebhook"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.Webhook.getDefaultInstance()))
+                      .setSchemaDescriptor(new WebhooksMethodDescriptorSupplier("GetWebhook"))
+                      .build();
+        }
+      }
+    }
+    return getGetWebhookMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Webhook>
+      getCreateWebhookMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "CreateWebhook",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.Webhook.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Webhook>
+      getCreateWebhookMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook>
+        getCreateWebhookMethod;
+    if ((getCreateWebhookMethod = WebhooksGrpc.getCreateWebhookMethod) == null) {
+      synchronized (WebhooksGrpc.class) {
+        if ((getCreateWebhookMethod = WebhooksGrpc.getCreateWebhookMethod) == null) {
+          WebhooksGrpc.getCreateWebhookMethod =
+              getCreateWebhookMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.Webhook>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "CreateWebhook"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.Webhook.getDefaultInstance()))
+                      .setSchemaDescriptor(new WebhooksMethodDescriptorSupplier("CreateWebhook"))
+                      .build();
+        }
+      }
+    }
+    return getCreateWebhookMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Webhook>
+      getUpdateWebhookMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "UpdateWebhook",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest.class,
+      responseType = com.google.cloud.dialogflow.cx.v3beta1.Webhook.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest,
+          com.google.cloud.dialogflow.cx.v3beta1.Webhook>
+      getUpdateWebhookMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook>
+        getUpdateWebhookMethod;
+    if ((getUpdateWebhookMethod = WebhooksGrpc.getUpdateWebhookMethod) == null) {
+      synchronized (WebhooksGrpc.class) {
+        if ((getUpdateWebhookMethod = WebhooksGrpc.getUpdateWebhookMethod) == null) {
+          WebhooksGrpc.getUpdateWebhookMethod =
+              getUpdateWebhookMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest,
+                          com.google.cloud.dialogflow.cx.v3beta1.Webhook>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "UpdateWebhook"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.Webhook.getDefaultInstance()))
+                      .setSchemaDescriptor(new WebhooksMethodDescriptorSupplier("UpdateWebhook"))
+                      .build();
+        }
+      }
+    }
+    return getUpdateWebhookMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest, com.google.protobuf.Empty>
+      getDeleteWebhookMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "DeleteWebhook",
+      requestType = com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest.class,
+      responseType = com.google.protobuf.Empty.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest, com.google.protobuf.Empty>
+      getDeleteWebhookMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest, com.google.protobuf.Empty>
+        getDeleteWebhookMethod;
+    if ((getDeleteWebhookMethod = WebhooksGrpc.getDeleteWebhookMethod) == null) {
+      synchronized (WebhooksGrpc.class) {
+        if ((getDeleteWebhookMethod = WebhooksGrpc.getDeleteWebhookMethod) == null) {
+          WebhooksGrpc.getDeleteWebhookMethod =
+              getDeleteWebhookMethod =
+                  io.grpc.MethodDescriptor
+                      .<com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest,
+                          com.google.protobuf.Empty>
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "DeleteWebhook"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.protobuf.Empty.getDefaultInstance()))
+                      .setSchemaDescriptor(new WebhooksMethodDescriptorSupplier("DeleteWebhook"))
+                      .build();
+        }
+      }
+    }
+    return getDeleteWebhookMethod;
+  }
+
+  /** Creates a new async stub that supports all call types for the service */
+  public static WebhooksStub newStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<WebhooksStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<WebhooksStub>() {
+          @java.lang.Override
+          public WebhooksStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new WebhooksStub(channel, callOptions);
+          }
+        };
+    return WebhooksStub.newStub(factory, channel);
+  }
+
+  /**
+   * Creates a new blocking-style stub that supports unary and streaming output calls on the service
+   */
+  public static WebhooksBlockingStub newBlockingStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<WebhooksBlockingStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<WebhooksBlockingStub>() {
+          @java.lang.Override
+          public WebhooksBlockingStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new WebhooksBlockingStub(channel, callOptions);
+          }
+        };
+    return WebhooksBlockingStub.newStub(factory, channel);
+  }
+
+  /** Creates a new ListenableFuture-style stub that supports unary calls on the service */
+  public static WebhooksFutureStub newFutureStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<WebhooksFutureStub> factory =
+        new io.grpc.stub.AbstractStub.StubFactory<WebhooksFutureStub>() {
+          @java.lang.Override
+          public WebhooksFutureStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new WebhooksFutureStub(channel, callOptions);
+          }
+        };
+    return WebhooksFutureStub.newStub(factory, channel);
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Webhooks][google.cloud.dialogflow.cx.v3beta1.Webhook].
+   * </pre>
+   */
+  public abstract static class WebhooksImplBase implements io.grpc.BindableService {
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all webhooks in the specified agent.
+     * </pre>
+     */
+    public void listWebhooks(
+        com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getListWebhooksMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified webhook.
+     * </pre>
+     */
+    public void getWebhook(
+        com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Webhook>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getGetWebhookMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates a webhook in the specified agent.
+     * </pre>
+     */
+    public void createWebhook(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Webhook>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getCreateWebhookMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified webhook.
+     * </pre>
+     */
+    public void updateWebhook(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Webhook>
+            responseObserver) {
+      asyncUnimplementedUnaryCall(getUpdateWebhookMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified webhook.
+     * </pre>
+     */
+    public void deleteWebhook(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest request,
+        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver) {
+      asyncUnimplementedUnaryCall(getDeleteWebhookMethod(), responseObserver);
+    }
+
+    @java.lang.Override
+    public final io.grpc.ServerServiceDefinition bindService() {
+      return io.grpc.ServerServiceDefinition.builder(getServiceDescriptor())
+          .addMethod(
+              getListWebhooksMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse>(
+                      this, METHODID_LIST_WEBHOOKS)))
+          .addMethod(
+              getGetWebhookMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.Webhook>(this, METHODID_GET_WEBHOOK)))
+          .addMethod(
+              getCreateWebhookMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.Webhook>(
+                      this, METHODID_CREATE_WEBHOOK)))
+          .addMethod(
+              getUpdateWebhookMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest,
+                      com.google.cloud.dialogflow.cx.v3beta1.Webhook>(
+                      this, METHODID_UPDATE_WEBHOOK)))
+          .addMethod(
+              getDeleteWebhookMethod(),
+              asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest,
+                      com.google.protobuf.Empty>(this, METHODID_DELETE_WEBHOOK)))
+          .build();
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Webhooks][google.cloud.dialogflow.cx.v3beta1.Webhook].
+   * </pre>
+   */
+  public static final class WebhooksStub extends io.grpc.stub.AbstractAsyncStub<WebhooksStub> {
+    private WebhooksStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected WebhooksStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new WebhooksStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all webhooks in the specified agent.
+     * </pre>
+     */
+    public void listWebhooks(
+        com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getListWebhooksMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified webhook.
+     * </pre>
+     */
+    public void getWebhook(
+        com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Webhook>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getGetWebhookMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates a webhook in the specified agent.
+     * </pre>
+     */
+    public void createWebhook(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Webhook>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getCreateWebhookMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified webhook.
+     * </pre>
+     */
+    public void updateWebhook(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Webhook>
+            responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getUpdateWebhookMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified webhook.
+     * </pre>
+     */
+    public void deleteWebhook(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest request,
+        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getDeleteWebhookMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Webhooks][google.cloud.dialogflow.cx.v3beta1.Webhook].
+   * </pre>
+   */
+  public static final class WebhooksBlockingStub
+      extends io.grpc.stub.AbstractBlockingStub<WebhooksBlockingStub> {
+    private WebhooksBlockingStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected WebhooksBlockingStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new WebhooksBlockingStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all webhooks in the specified agent.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse listWebhooks(
+        com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest request) {
+      return blockingUnaryCall(getChannel(), getListWebhooksMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified webhook.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Webhook getWebhook(
+        com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest request) {
+      return blockingUnaryCall(getChannel(), getGetWebhookMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates a webhook in the specified agent.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Webhook createWebhook(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest request) {
+      return blockingUnaryCall(getChannel(), getCreateWebhookMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified webhook.
+     * </pre>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Webhook updateWebhook(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest request) {
+      return blockingUnaryCall(getChannel(), getUpdateWebhookMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified webhook.
+     * </pre>
+     */
+    public com.google.protobuf.Empty deleteWebhook(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest request) {
+      return blockingUnaryCall(getChannel(), getDeleteWebhookMethod(), getCallOptions(), request);
+    }
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Service for managing [Webhooks][google.cloud.dialogflow.cx.v3beta1.Webhook].
+   * </pre>
+   */
+  public static final class WebhooksFutureStub
+      extends io.grpc.stub.AbstractFutureStub<WebhooksFutureStub> {
+    private WebhooksFutureStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected WebhooksFutureStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new WebhooksFutureStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Returns the list of all webhooks in the specified agent.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse>
+        listWebhooks(com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getListWebhooksMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Retrieves the specified webhook.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook>
+        getWebhook(com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getGetWebhookMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Creates a webhook in the specified agent.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook>
+        createWebhook(com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getCreateWebhookMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Updates the specified webhook.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook>
+        updateWebhook(com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getUpdateWebhookMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Deletes the specified webhook.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.protobuf.Empty>
+        deleteWebhook(com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getDeleteWebhookMethod(), getCallOptions()), request);
+    }
+  }
+
+  private static final int METHODID_LIST_WEBHOOKS = 0;
+  private static final int METHODID_GET_WEBHOOK = 1;
+  private static final int METHODID_CREATE_WEBHOOK = 2;
+  private static final int METHODID_UPDATE_WEBHOOK = 3;
+  private static final int METHODID_DELETE_WEBHOOK = 4;
+
+  private static final class MethodHandlers<Req, Resp>
+      implements io.grpc.stub.ServerCalls.UnaryMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.ServerStreamingMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.ClientStreamingMethod<Req, Resp>,
+          io.grpc.stub.ServerCalls.BidiStreamingMethod<Req, Resp> {
+    private final WebhooksImplBase serviceImpl;
+    private final int methodId;
+
+    MethodHandlers(WebhooksImplBase serviceImpl, int methodId) {
+      this.serviceImpl = serviceImpl;
+      this.methodId = methodId;
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public void invoke(Req request, io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        case METHODID_LIST_WEBHOOKS:
+          serviceImpl.listWebhooks(
+              (com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest) request,
+              (io.grpc.stub.StreamObserver<
+                      com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse>)
+                  responseObserver);
+          break;
+        case METHODID_GET_WEBHOOK:
+          serviceImpl.getWebhook(
+              (com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Webhook>)
+                  responseObserver);
+          break;
+        case METHODID_CREATE_WEBHOOK:
+          serviceImpl.createWebhook(
+              (com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Webhook>)
+                  responseObserver);
+          break;
+        case METHODID_UPDATE_WEBHOOK:
+          serviceImpl.updateWebhook(
+              (com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.dialogflow.cx.v3beta1.Webhook>)
+                  responseObserver);
+          break;
+        case METHODID_DELETE_WEBHOOK:
+          serviceImpl.deleteWebhook(
+              (com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.protobuf.Empty>) responseObserver);
+          break;
+        default:
+          throw new AssertionError();
+      }
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public io.grpc.stub.StreamObserver<Req> invoke(
+        io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        default:
+          throw new AssertionError();
+      }
+    }
+  }
+
+  private abstract static class WebhooksBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoFileDescriptorSupplier,
+          io.grpc.protobuf.ProtoServiceDescriptorSupplier {
+    WebhooksBaseDescriptorSupplier() {}
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.FileDescriptor getFileDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto.getDescriptor();
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.ServiceDescriptor getServiceDescriptor() {
+      return getFileDescriptor().findServiceByName("Webhooks");
+    }
+  }
+
+  private static final class WebhooksFileDescriptorSupplier extends WebhooksBaseDescriptorSupplier {
+    WebhooksFileDescriptorSupplier() {}
+  }
+
+  private static final class WebhooksMethodDescriptorSupplier extends WebhooksBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoMethodDescriptorSupplier {
+    private final String methodName;
+
+    WebhooksMethodDescriptorSupplier(String methodName) {
+      this.methodName = methodName;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.MethodDescriptor getMethodDescriptor() {
+      return getServiceDescriptor().findMethodByName(methodName);
+    }
+  }
+
+  private static volatile io.grpc.ServiceDescriptor serviceDescriptor;
+
+  public static io.grpc.ServiceDescriptor getServiceDescriptor() {
+    io.grpc.ServiceDescriptor result = serviceDescriptor;
+    if (result == null) {
+      synchronized (WebhooksGrpc.class) {
+        result = serviceDescriptor;
+        if (result == null) {
+          serviceDescriptor =
+              result =
+                  io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
+                      .setSchemaDescriptor(new WebhooksFileDescriptorSupplier())
+                      .addMethod(getListWebhooksMethod())
+                      .addMethod(getGetWebhookMethod())
+                      .addMethod(getCreateWebhookMethod())
+                      .addMethod(getUpdateWebhookMethod())
+                      .addMethod(getDeleteWebhookMethod())
+                      .build();
+        }
+      }
+    }
+    return result;
+  }
+}
diff --git a/java.header b/java.header
new file mode 100644
index 000000000..3a9b503aa
--- /dev/null
+++ b/java.header
@@ -0,0 +1,15 @@
+^/\*$
+^ \* Copyright \d\d\d\d,? Google (Inc\.|LLC)( All [rR]ights [rR]eserved\.)?$
+^ \*$
+^ \* Licensed under the Apache License, Version 2\.0 \(the "License"\);$
+^ \* you may not use this file except in compliance with the License\.$
+^ \* You may obtain a copy of the License at$
+^ \*$
+^ \*[ ]+https?://www.apache.org/licenses/LICENSE-2\.0$
+^ \*$
+^ \* Unless required by applicable law or agreed to in writing, software$
+^ \* distributed under the License is distributed on an "AS IS" BASIS,$
+^ \* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied\.$
+^ \* See the License for the specific language governing permissions and$
+^ \* limitations under the License\.$
+^ \*/$
diff --git a/license-checks.xml b/license-checks.xml
new file mode 100644
index 000000000..6597fced8
--- /dev/null
+++ b/license-checks.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0"?>
+<!DOCTYPE module PUBLIC
+    "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
+    "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
+<module name="Checker">
+  <module name="RegexpHeader">
+    <property name="fileExtensions" value="java"/>
+    <property name="headerFile" value="${checkstyle.header.file}"/>
+  </module>
+</module>
diff --git a/pom.xml b/pom.xml
new file mode 100644
index 000000000..d393326eb
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,189 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.google.cloud</groupId>
+  <artifactId>google-cloud-dialogflow-cx-parent</artifactId>
+  <packaging>pom</packaging>
+  <version>0.0.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow-cx:current} -->
+  <name>Google Dialogflow CX Parent</name>
+  <url>https://github.com/googleapis/java-dialogflow-cx</url>
+  <description>
+    Java idiomatic client for Google Cloud Platform services.
+  </description>
+
+  <parent>
+    <groupId>com.google.cloud</groupId>
+    <artifactId>google-cloud-shared-config</artifactId>
+    <version>0.9.2</version>
+  </parent>
+
+  <developers>
+    <developer>
+      <id>chingor</id>
+      <name>Jeff Ching</name>
+      <email>chingor@google.com</email>
+      <organization>Google</organization>
+      <roles>
+        <role>Developer</role>
+      </roles>
+    </developer>
+  </developers>
+  <organization>
+    <name>Google LLC</name>
+  </organization>
+  <scm>
+    <connection>scm:git:git@github.com:googleapis/java-dialogflow-cx.git</connection>
+    <developerConnection>scm:git:git@github.com:googleapis/java-dialogflow-cx.git</developerConnection>
+    <url>https://github.com/googleapis/java-dialogflow-cx</url>
+    <tag>HEAD</tag>
+  </scm>
+  <issueManagement>
+    <url>https://github.com/googleapis/java-dialogflow-cx/issues</url>
+    <system>GitHub Issues</system>
+  </issueManagement>
+  <distributionManagement>
+    <snapshotRepository>
+      <id>sonatype-nexus-snapshots</id>
+      <url>https://oss.sonatype.org/content/repositories/snapshots</url>
+    </snapshotRepository>
+    <repository>
+      <id>sonatype-nexus-staging</id>
+      <url>https://oss.sonatype.org/service/local/staging/deploy/maven2/</url>
+    </repository>
+  </distributionManagement>
+  <licenses>
+    <license>
+      <name>Apache-2.0</name>
+      <url>https://www.apache.org/licenses/LICENSE-2.0.txt</url>
+    </license>
+  </licenses>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+    <github.global.server>github</github.global.server>
+    <site.installationModule>google-cloud-dialogflow-cx-parent</site.installationModule>
+  </properties>
+
+  <dependencyManagement>
+    <dependencies>
+      <dependency>
+        <groupId>com.google.cloud</groupId>
+        <artifactId>google-cloud-dialogflow-cx</artifactId>
+        <version>0.0.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow-cx:current} -->
+      </dependency>
+      <dependency>
+        <groupId>com.google.api.grpc</groupId>
+        <artifactId>proto-google-cloud-dialogflow-cx-v3beta1</artifactId>
+        <version>0.0.1-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-dialogflow-cx-v3beta1:current} -->
+      </dependency>
+      <dependency>
+        <groupId>com.google.api.grpc</groupId>
+        <artifactId>grpc-google-cloud-dialogflow-cx-v3beta1</artifactId>
+        <version>0.0.1-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-dialogflow-cx-v3beta1:current} -->
+      </dependency>
+
+      <dependency>
+        <groupId>com.google.cloud</groupId>
+        <artifactId>google-cloud-shared-dependencies</artifactId>
+        <version>0.8.3</version>
+        <type>pom</type>
+        <scope>import</scope>
+      </dependency>
+    </dependencies>
+  </dependencyManagement>
+
+  <build>
+    <pluginManagement>
+      <plugins>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-dependency-plugin</artifactId>
+          <configuration>
+            <ignoredUnusedDeclaredDependencies>
+              <ignoredUnusedDeclaredDependency>org.objenesis:objenesis</ignoredUnusedDeclaredDependency>
+              <ignoredUnusedDeclaredDependency>javax.annotation:javax.annotation-api</ignoredUnusedDeclaredDependency>
+            </ignoredUnusedDeclaredDependencies>
+          </configuration>
+        </plugin>
+      </plugins>
+    </pluginManagement>
+  </build>
+
+  <modules>
+    <module>google-cloud-dialogflow-cx</module>
+    <module>proto-google-cloud-dialogflow-cx-v3beta1</module>
+    <module>grpc-google-cloud-dialogflow-cx-v3beta1</module>
+    <module>google-cloud-dialogflow-cx-bom</module>
+  </modules>
+
+  <reporting>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-project-info-reports-plugin</artifactId>
+        <version>3.1.0</version>
+        <reportSets>
+          <reportSet>
+            <reports>
+              <report>index</report>
+              <report>dependency-info</report>
+              <report>team</report>
+              <report>ci-management</report>
+              <report>issue-management</report>
+              <report>licenses</report>
+              <report>scm</report>
+              <report>dependency-management</report>
+              <report>distribution-management</report>
+              <report>summary</report>
+              <report>modules</report>
+            </reports>
+          </reportSet>
+        </reportSets>
+        <configuration>
+          <dependencyDetailsEnabled>true</dependencyDetailsEnabled>
+          <artifactId>${site.installationModule}</artifactId>
+          <packaging>jar</packaging>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-javadoc-plugin</artifactId>
+        <version>3.1.1</version>
+        <reportSets>
+          <reportSet>
+            <id>html</id>
+            <reports>
+              <report>aggregate</report>
+              <report>javadoc</report>
+            </reports>
+          </reportSet>
+        </reportSets>
+        <configuration>
+          <doclint>none</doclint>
+          <show>protected</show>
+          <nohelp>true</nohelp>
+          <outputDirectory>${project.build.directory}/javadoc</outputDirectory>
+          <groups>
+            <group>
+              <title>Test helpers packages</title>
+              <packages>com.google.cloud.testing</packages>
+            </group>
+            <group>
+              <title>SPI packages</title>
+              <packages>com.google.cloud.spi*</packages>
+            </group>
+          </groups>
+
+          <links>
+            <link>https://grpc.io/grpc-java/javadoc/</link>
+            <link>https://developers.google.com/protocol-buffers/docs/reference/java/</link>
+            <link>https://googleapis.dev/java/google-auth-library/latest/</link>
+            <link>https://googleapis.dev/java/gax/latest/</link>
+            <link>https://googleapis.github.io/api-common-java/${google.api-common.version}/apidocs/</link>
+          </links>
+        </configuration>
+      </plugin>
+    </plugins>
+  </reporting>
+</project>
\ No newline at end of file
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/pom.xml b/proto-google-cloud-dialogflow-cx-v3beta1/pom.xml
new file mode 100644
index 000000000..8ec090b8e
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/pom.xml
@@ -0,0 +1,42 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.google.api.grpc</groupId>
+  <artifactId>proto-google-cloud-dialogflow-cx-v3beta1</artifactId>
+  <version>0.0.1-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-dialogflow-cx-v3beta1:current} -->
+  <name>proto-google-cloud-dialogflow-cx-v3beta1</name>
+  <description>PROTO library for proto-google-cloud-dialogflow-cx-v3beta1</description>
+  <parent>
+    <groupId>com.google.cloud</groupId>
+    <artifactId>google-cloud-dialogflow-cx-parent</artifactId>
+    <version>0.0.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow-cx:current} -->
+  </parent>
+  <dependencies>
+    <dependency>
+      <groupId>com.google.protobuf</groupId>
+      <artifactId>protobuf-java</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.google.api.grpc</groupId>
+      <artifactId>proto-google-common-protos</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.google.api</groupId>
+      <artifactId>api-common</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.google.guava</groupId>
+      <artifactId>guava</artifactId>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+          <groupId>org.codehaus.mojo</groupId>
+          <artifactId>flatten-maven-plugin</artifactId>
+        </plugin>
+    </plugins>
+  </build>
+</project>
\ No newline at end of file
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Agent.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Agent.java
new file mode 100644
index 000000000..99ed32dc1
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Agent.java
@@ -0,0 +1,2335 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Agents are best described as Natural Language Understanding (NLU) modules
+ * that transform user requests into actionable data. You can include agents
+ * in your app, product, or service to determine user intent and respond to the
+ * user in a natural way.
+ * After you create an agent, you can add [Intents][google.cloud.dialogflow.cx.v3beta1.Intent],
+ * [Entity Types][google.cloud.dialogflow.cx.v3beta1.EntityType], [Flows][google.cloud.dialogflow.cx.v3beta1.Flow], [Fulfillments][google.cloud.dialogflow.cx.v3beta1.Fulfillment],
+ * [Webhooks][google.cloud.dialogflow.cx.v3beta1.Webhook], and so on to manage the conversation flows..
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Agent}
+ */
+public final class Agent extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.Agent)
+    AgentOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use Agent.newBuilder() to construct.
+  private Agent(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private Agent() {
+    name_ = "";
+    displayName_ = "";
+    defaultLanguageCode_ = "";
+    timeZone_ = "";
+    description_ = "";
+    avatarUri_ = "";
+    startFlow_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new Agent();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private Agent(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              displayName_ = s;
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              defaultLanguageCode_ = s;
+              break;
+            }
+          case 42:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              timeZone_ = s;
+              break;
+            }
+          case 50:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              description_ = s;
+              break;
+            }
+          case 58:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              avatarUri_ = s;
+              break;
+            }
+          case 106:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings.Builder subBuilder = null;
+              if (speechToTextSettings_ != null) {
+                subBuilder = speechToTextSettings_.toBuilder();
+              }
+              speechToTextSettings_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(speechToTextSettings_);
+                speechToTextSettings_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 130:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              startFlow_ = s;
+              break;
+            }
+          case 144:
+            {
+              enableStackdriverLogging_ = input.readBool();
+              break;
+            }
+          case 160:
+            {
+              enableSpellCorrection_ = input.readBool();
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_Agent_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_Agent_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.Agent.class,
+            com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the agent.
+   * Required for the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method. [Agents.CreateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.CreateAgent]
+   * populates the name automatically.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the agent.
+   * Required for the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method. [Agents.CreateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.CreateAgent]
+   * populates the name automatically.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int DISPLAY_NAME_FIELD_NUMBER = 2;
+  private volatile java.lang.Object displayName_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the agent, unique within the location.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The displayName.
+   */
+  @java.lang.Override
+  public java.lang.String getDisplayName() {
+    java.lang.Object ref = displayName_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      displayName_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the agent, unique within the location.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for displayName.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getDisplayNameBytes() {
+    java.lang.Object ref = displayName_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      displayName_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int DEFAULT_LANGUAGE_CODE_FIELD_NUMBER = 3;
+  private volatile java.lang.Object defaultLanguageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * Immutable. The default language of the agent as a language tag.
+   * See [Language
+   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * for a list of the currently supported language codes.
+   * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method.
+   * </pre>
+   *
+   * <code>string default_language_code = 3 [(.google.api.field_behavior) = IMMUTABLE];</code>
+   *
+   * @return The defaultLanguageCode.
+   */
+  @java.lang.Override
+  public java.lang.String getDefaultLanguageCode() {
+    java.lang.Object ref = defaultLanguageCode_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      defaultLanguageCode_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Immutable. The default language of the agent as a language tag.
+   * See [Language
+   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * for a list of the currently supported language codes.
+   * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method.
+   * </pre>
+   *
+   * <code>string default_language_code = 3 [(.google.api.field_behavior) = IMMUTABLE];</code>
+   *
+   * @return The bytes for defaultLanguageCode.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getDefaultLanguageCodeBytes() {
+    java.lang.Object ref = defaultLanguageCode_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      defaultLanguageCode_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int TIME_ZONE_FIELD_NUMBER = 5;
+  private volatile java.lang.Object timeZone_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The time zone of the agent from the [time zone
+   * database](https://www.iana.org/time-zones), e.g., America/New_York,
+   * Europe/Paris.
+   * </pre>
+   *
+   * <code>string time_zone = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The timeZone.
+   */
+  @java.lang.Override
+  public java.lang.String getTimeZone() {
+    java.lang.Object ref = timeZone_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      timeZone_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The time zone of the agent from the [time zone
+   * database](https://www.iana.org/time-zones), e.g., America/New_York,
+   * Europe/Paris.
+   * </pre>
+   *
+   * <code>string time_zone = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for timeZone.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getTimeZoneBytes() {
+    java.lang.Object ref = timeZone_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      timeZone_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int DESCRIPTION_FIELD_NUMBER = 6;
+  private volatile java.lang.Object description_;
+  /**
+   *
+   *
+   * <pre>
+   * The description of the agent. The maximum length is 500 characters. If
+   * exceeded, the request is rejected.
+   * </pre>
+   *
+   * <code>string description = 6;</code>
+   *
+   * @return The description.
+   */
+  @java.lang.Override
+  public java.lang.String getDescription() {
+    java.lang.Object ref = description_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      description_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The description of the agent. The maximum length is 500 characters. If
+   * exceeded, the request is rejected.
+   * </pre>
+   *
+   * <code>string description = 6;</code>
+   *
+   * @return The bytes for description.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getDescriptionBytes() {
+    java.lang.Object ref = description_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      description_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int AVATAR_URI_FIELD_NUMBER = 7;
+  private volatile java.lang.Object avatarUri_;
+  /**
+   *
+   *
+   * <pre>
+   * The URI of the agent's avatar. Avatars are used throughout the Dialogflow
+   * console and in the self-hosted [Web
+   * Demo](https://cloud.google.com/dialogflow/docs/integrations/web-demo)
+   * integration.
+   * </pre>
+   *
+   * <code>string avatar_uri = 7;</code>
+   *
+   * @return The avatarUri.
+   */
+  @java.lang.Override
+  public java.lang.String getAvatarUri() {
+    java.lang.Object ref = avatarUri_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      avatarUri_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The URI of the agent's avatar. Avatars are used throughout the Dialogflow
+   * console and in the self-hosted [Web
+   * Demo](https://cloud.google.com/dialogflow/docs/integrations/web-demo)
+   * integration.
+   * </pre>
+   *
+   * <code>string avatar_uri = 7;</code>
+   *
+   * @return The bytes for avatarUri.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getAvatarUriBytes() {
+    java.lang.Object ref = avatarUri_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      avatarUri_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int SPEECH_TO_TEXT_SETTINGS_FIELD_NUMBER = 13;
+  private com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings speechToTextSettings_;
+  /**
+   *
+   *
+   * <pre>
+   * Speech recognition related settings.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings speech_to_text_settings = 13;
+   * </code>
+   *
+   * @return Whether the speechToTextSettings field is set.
+   */
+  @java.lang.Override
+  public boolean hasSpeechToTextSettings() {
+    return speechToTextSettings_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Speech recognition related settings.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings speech_to_text_settings = 13;
+   * </code>
+   *
+   * @return The speechToTextSettings.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings getSpeechToTextSettings() {
+    return speechToTextSettings_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings.getDefaultInstance()
+        : speechToTextSettings_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Speech recognition related settings.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings speech_to_text_settings = 13;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettingsOrBuilder
+      getSpeechToTextSettingsOrBuilder() {
+    return getSpeechToTextSettings();
+  }
+
+  public static final int START_FLOW_FIELD_NUMBER = 16;
+  private volatile java.lang.Object startFlow_;
+  /**
+   *
+   *
+   * <pre>
+   * Immutable. Name of the start flow in this agent. A start flow will be automatically
+   * created when the agent is created, and can only be deleted by deleting the
+   * agent.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string start_flow = 16 [(.google.api.field_behavior) = IMMUTABLE, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The startFlow.
+   */
+  @java.lang.Override
+  public java.lang.String getStartFlow() {
+    java.lang.Object ref = startFlow_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      startFlow_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Immutable. Name of the start flow in this agent. A start flow will be automatically
+   * created when the agent is created, and can only be deleted by deleting the
+   * agent.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string start_flow = 16 [(.google.api.field_behavior) = IMMUTABLE, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for startFlow.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getStartFlowBytes() {
+    java.lang.Object ref = startFlow_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      startFlow_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int ENABLE_STACKDRIVER_LOGGING_FIELD_NUMBER = 18;
+  private boolean enableStackdriverLogging_;
+  /**
+   *
+   *
+   * <pre>
+   * Indicates if stackdriver logging is enabled for the agent.
+   * </pre>
+   *
+   * <code>bool enable_stackdriver_logging = 18;</code>
+   *
+   * @return The enableStackdriverLogging.
+   */
+  @java.lang.Override
+  public boolean getEnableStackdriverLogging() {
+    return enableStackdriverLogging_;
+  }
+
+  public static final int ENABLE_SPELL_CORRECTION_FIELD_NUMBER = 20;
+  private boolean enableSpellCorrection_;
+  /**
+   *
+   *
+   * <pre>
+   * Indicates if automatic spell correction is enabled in detect intent
+   * requests.
+   * </pre>
+   *
+   * <code>bool enable_spell_correction = 20;</code>
+   *
+   * @return The enableSpellCorrection.
+   */
+  @java.lang.Override
+  public boolean getEnableSpellCorrection() {
+    return enableSpellCorrection_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (!getDisplayNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, displayName_);
+    }
+    if (!getDefaultLanguageCodeBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, defaultLanguageCode_);
+    }
+    if (!getTimeZoneBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 5, timeZone_);
+    }
+    if (!getDescriptionBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 6, description_);
+    }
+    if (!getAvatarUriBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 7, avatarUri_);
+    }
+    if (speechToTextSettings_ != null) {
+      output.writeMessage(13, getSpeechToTextSettings());
+    }
+    if (!getStartFlowBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 16, startFlow_);
+    }
+    if (enableStackdriverLogging_ != false) {
+      output.writeBool(18, enableStackdriverLogging_);
+    }
+    if (enableSpellCorrection_ != false) {
+      output.writeBool(20, enableSpellCorrection_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (!getDisplayNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, displayName_);
+    }
+    if (!getDefaultLanguageCodeBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, defaultLanguageCode_);
+    }
+    if (!getTimeZoneBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, timeZone_);
+    }
+    if (!getDescriptionBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, description_);
+    }
+    if (!getAvatarUriBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(7, avatarUri_);
+    }
+    if (speechToTextSettings_ != null) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(13, getSpeechToTextSettings());
+    }
+    if (!getStartFlowBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(16, startFlow_);
+    }
+    if (enableStackdriverLogging_ != false) {
+      size += com.google.protobuf.CodedOutputStream.computeBoolSize(18, enableStackdriverLogging_);
+    }
+    if (enableSpellCorrection_ != false) {
+      size += com.google.protobuf.CodedOutputStream.computeBoolSize(20, enableSpellCorrection_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.Agent)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.Agent other =
+        (com.google.cloud.dialogflow.cx.v3beta1.Agent) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!getDisplayName().equals(other.getDisplayName())) return false;
+    if (!getDefaultLanguageCode().equals(other.getDefaultLanguageCode())) return false;
+    if (!getTimeZone().equals(other.getTimeZone())) return false;
+    if (!getDescription().equals(other.getDescription())) return false;
+    if (!getAvatarUri().equals(other.getAvatarUri())) return false;
+    if (hasSpeechToTextSettings() != other.hasSpeechToTextSettings()) return false;
+    if (hasSpeechToTextSettings()) {
+      if (!getSpeechToTextSettings().equals(other.getSpeechToTextSettings())) return false;
+    }
+    if (!getStartFlow().equals(other.getStartFlow())) return false;
+    if (getEnableStackdriverLogging() != other.getEnableStackdriverLogging()) return false;
+    if (getEnableSpellCorrection() != other.getEnableSpellCorrection()) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + DISPLAY_NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getDisplayName().hashCode();
+    hash = (37 * hash) + DEFAULT_LANGUAGE_CODE_FIELD_NUMBER;
+    hash = (53 * hash) + getDefaultLanguageCode().hashCode();
+    hash = (37 * hash) + TIME_ZONE_FIELD_NUMBER;
+    hash = (53 * hash) + getTimeZone().hashCode();
+    hash = (37 * hash) + DESCRIPTION_FIELD_NUMBER;
+    hash = (53 * hash) + getDescription().hashCode();
+    hash = (37 * hash) + AVATAR_URI_FIELD_NUMBER;
+    hash = (53 * hash) + getAvatarUri().hashCode();
+    if (hasSpeechToTextSettings()) {
+      hash = (37 * hash) + SPEECH_TO_TEXT_SETTINGS_FIELD_NUMBER;
+      hash = (53 * hash) + getSpeechToTextSettings().hashCode();
+    }
+    hash = (37 * hash) + START_FLOW_FIELD_NUMBER;
+    hash = (53 * hash) + getStartFlow().hashCode();
+    hash = (37 * hash) + ENABLE_STACKDRIVER_LOGGING_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnableStackdriverLogging());
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+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnableSpellCorrection());
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Agent parseFrom(java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Agent parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Agent parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Agent parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Agent parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Agent parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Agent parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Agent parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Agent parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Agent parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Agent parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Agent parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.cx.v3beta1.Agent prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Agents are best described as Natural Language Understanding (NLU) modules
+   * that transform user requests into actionable data. You can include agents
+   * in your app, product, or service to determine user intent and respond to the
+   * user in a natural way.
+   * After you create an agent, you can add [Intents][google.cloud.dialogflow.cx.v3beta1.Intent],
+   * [Entity Types][google.cloud.dialogflow.cx.v3beta1.EntityType], [Flows][google.cloud.dialogflow.cx.v3beta1.Flow], [Fulfillments][google.cloud.dialogflow.cx.v3beta1.Fulfillment],
+   * [Webhooks][google.cloud.dialogflow.cx.v3beta1.Webhook], and so on to manage the conversation flows..
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Agent}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.Agent)
+      com.google.cloud.dialogflow.cx.v3beta1.AgentOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Agent_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Agent_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.Agent.class,
+              com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.Agent.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      displayName_ = "";
+
+      defaultLanguageCode_ = "";
+
+      timeZone_ = "";
+
+      description_ = "";
+
+      avatarUri_ = "";
+
+      if (speechToTextSettingsBuilder_ == null) {
+        speechToTextSettings_ = null;
+      } else {
+        speechToTextSettings_ = null;
+        speechToTextSettingsBuilder_ = null;
+      }
+      startFlow_ = "";
+
+      enableStackdriverLogging_ = false;
+
+      enableSpellCorrection_ = false;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Agent_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Agent getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.Agent.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Agent build() {
+      com.google.cloud.dialogflow.cx.v3beta1.Agent result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Agent buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.Agent result =
+          new com.google.cloud.dialogflow.cx.v3beta1.Agent(this);
+      result.name_ = name_;
+      result.displayName_ = displayName_;
+      result.defaultLanguageCode_ = defaultLanguageCode_;
+      result.timeZone_ = timeZone_;
+      result.description_ = description_;
+      result.avatarUri_ = avatarUri_;
+      if (speechToTextSettingsBuilder_ == null) {
+        result.speechToTextSettings_ = speechToTextSettings_;
+      } else {
+        result.speechToTextSettings_ = speechToTextSettingsBuilder_.build();
+      }
+      result.startFlow_ = startFlow_;
+      result.enableStackdriverLogging_ = enableStackdriverLogging_;
+      result.enableSpellCorrection_ = enableSpellCorrection_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.Agent) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.Agent) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.Agent other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.Agent.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getDisplayName().isEmpty()) {
+        displayName_ = other.displayName_;
+        onChanged();
+      }
+      if (!other.getDefaultLanguageCode().isEmpty()) {
+        defaultLanguageCode_ = other.defaultLanguageCode_;
+        onChanged();
+      }
+      if (!other.getTimeZone().isEmpty()) {
+        timeZone_ = other.timeZone_;
+        onChanged();
+      }
+      if (!other.getDescription().isEmpty()) {
+        description_ = other.description_;
+        onChanged();
+      }
+      if (!other.getAvatarUri().isEmpty()) {
+        avatarUri_ = other.avatarUri_;
+        onChanged();
+      }
+      if (other.hasSpeechToTextSettings()) {
+        mergeSpeechToTextSettings(other.getSpeechToTextSettings());
+      }
+      if (!other.getStartFlow().isEmpty()) {
+        startFlow_ = other.startFlow_;
+        onChanged();
+      }
+      if (other.getEnableStackdriverLogging() != false) {
+        setEnableStackdriverLogging(other.getEnableStackdriverLogging());
+      }
+      if (other.getEnableSpellCorrection() != false) {
+        setEnableSpellCorrection(other.getEnableSpellCorrection());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.Agent parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.dialogflow.cx.v3beta1.Agent) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the agent.
+     * Required for the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method. [Agents.CreateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.CreateAgent]
+     * populates the name automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the agent.
+     * Required for the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method. [Agents.CreateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.CreateAgent]
+     * populates the name automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the agent.
+     * Required for the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method. [Agents.CreateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.CreateAgent]
+     * populates the name automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the agent.
+     * Required for the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method. [Agents.CreateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.CreateAgent]
+     * populates the name automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the agent.
+     * Required for the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method. [Agents.CreateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.CreateAgent]
+     * populates the name automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object displayName_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the agent, unique within the location.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The displayName.
+     */
+    public java.lang.String getDisplayName() {
+      java.lang.Object ref = displayName_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        displayName_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the agent, unique within the location.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for displayName.
+     */
+    public com.google.protobuf.ByteString getDisplayNameBytes() {
+      java.lang.Object ref = displayName_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        displayName_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the agent, unique within the location.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The displayName to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDisplayName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      displayName_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the agent, unique within the location.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearDisplayName() {
+
+      displayName_ = getDefaultInstance().getDisplayName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the agent, unique within the location.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The bytes for displayName to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDisplayNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      displayName_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object defaultLanguageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Immutable. The default language of the agent as a language tag.
+     * See [Language
+     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * for a list of the currently supported language codes.
+     * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method.
+     * </pre>
+     *
+     * <code>string default_language_code = 3 [(.google.api.field_behavior) = IMMUTABLE];</code>
+     *
+     * @return The defaultLanguageCode.
+     */
+    public java.lang.String getDefaultLanguageCode() {
+      java.lang.Object ref = defaultLanguageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        defaultLanguageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Immutable. The default language of the agent as a language tag.
+     * See [Language
+     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * for a list of the currently supported language codes.
+     * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method.
+     * </pre>
+     *
+     * <code>string default_language_code = 3 [(.google.api.field_behavior) = IMMUTABLE];</code>
+     *
+     * @return The bytes for defaultLanguageCode.
+     */
+    public com.google.protobuf.ByteString getDefaultLanguageCodeBytes() {
+      java.lang.Object ref = defaultLanguageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        defaultLanguageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Immutable. The default language of the agent as a language tag.
+     * See [Language
+     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * for a list of the currently supported language codes.
+     * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method.
+     * </pre>
+     *
+     * <code>string default_language_code = 3 [(.google.api.field_behavior) = IMMUTABLE];</code>
+     *
+     * @param value The defaultLanguageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDefaultLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      defaultLanguageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Immutable. The default language of the agent as a language tag.
+     * See [Language
+     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * for a list of the currently supported language codes.
+     * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method.
+     * </pre>
+     *
+     * <code>string default_language_code = 3 [(.google.api.field_behavior) = IMMUTABLE];</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearDefaultLanguageCode() {
+
+      defaultLanguageCode_ = getDefaultInstance().getDefaultLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Immutable. The default language of the agent as a language tag.
+     * See [Language
+     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * for a list of the currently supported language codes.
+     * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method.
+     * </pre>
+     *
+     * <code>string default_language_code = 3 [(.google.api.field_behavior) = IMMUTABLE];</code>
+     *
+     * @param value The bytes for defaultLanguageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDefaultLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      defaultLanguageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object timeZone_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The time zone of the agent from the [time zone
+     * database](https://www.iana.org/time-zones), e.g., America/New_York,
+     * Europe/Paris.
+     * </pre>
+     *
+     * <code>string time_zone = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The timeZone.
+     */
+    public java.lang.String getTimeZone() {
+      java.lang.Object ref = timeZone_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        timeZone_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The time zone of the agent from the [time zone
+     * database](https://www.iana.org/time-zones), e.g., America/New_York,
+     * Europe/Paris.
+     * </pre>
+     *
+     * <code>string time_zone = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for timeZone.
+     */
+    public com.google.protobuf.ByteString getTimeZoneBytes() {
+      java.lang.Object ref = timeZone_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        timeZone_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The time zone of the agent from the [time zone
+     * database](https://www.iana.org/time-zones), e.g., America/New_York,
+     * Europe/Paris.
+     * </pre>
+     *
+     * <code>string time_zone = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The timeZone to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTimeZone(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      timeZone_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The time zone of the agent from the [time zone
+     * database](https://www.iana.org/time-zones), e.g., America/New_York,
+     * Europe/Paris.
+     * </pre>
+     *
+     * <code>string time_zone = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearTimeZone() {
+
+      timeZone_ = getDefaultInstance().getTimeZone();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The time zone of the agent from the [time zone
+     * database](https://www.iana.org/time-zones), e.g., America/New_York,
+     * Europe/Paris.
+     * </pre>
+     *
+     * <code>string time_zone = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The bytes for timeZone to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTimeZoneBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      timeZone_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object description_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The description of the agent. The maximum length is 500 characters. If
+     * exceeded, the request is rejected.
+     * </pre>
+     *
+     * <code>string description = 6;</code>
+     *
+     * @return The description.
+     */
+    public java.lang.String getDescription() {
+      java.lang.Object ref = description_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        description_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The description of the agent. The maximum length is 500 characters. If
+     * exceeded, the request is rejected.
+     * </pre>
+     *
+     * <code>string description = 6;</code>
+     *
+     * @return The bytes for description.
+     */
+    public com.google.protobuf.ByteString getDescriptionBytes() {
+      java.lang.Object ref = description_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        description_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The description of the agent. The maximum length is 500 characters. If
+     * exceeded, the request is rejected.
+     * </pre>
+     *
+     * <code>string description = 6;</code>
+     *
+     * @param value The description to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDescription(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      description_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The description of the agent. The maximum length is 500 characters. If
+     * exceeded, the request is rejected.
+     * </pre>
+     *
+     * <code>string description = 6;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearDescription() {
+
+      description_ = getDefaultInstance().getDescription();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The description of the agent. The maximum length is 500 characters. If
+     * exceeded, the request is rejected.
+     * </pre>
+     *
+     * <code>string description = 6;</code>
+     *
+     * @param value The bytes for description to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDescriptionBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      description_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object avatarUri_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The URI of the agent's avatar. Avatars are used throughout the Dialogflow
+     * console and in the self-hosted [Web
+     * Demo](https://cloud.google.com/dialogflow/docs/integrations/web-demo)
+     * integration.
+     * </pre>
+     *
+     * <code>string avatar_uri = 7;</code>
+     *
+     * @return The avatarUri.
+     */
+    public java.lang.String getAvatarUri() {
+      java.lang.Object ref = avatarUri_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        avatarUri_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The URI of the agent's avatar. Avatars are used throughout the Dialogflow
+     * console and in the self-hosted [Web
+     * Demo](https://cloud.google.com/dialogflow/docs/integrations/web-demo)
+     * integration.
+     * </pre>
+     *
+     * <code>string avatar_uri = 7;</code>
+     *
+     * @return The bytes for avatarUri.
+     */
+    public com.google.protobuf.ByteString getAvatarUriBytes() {
+      java.lang.Object ref = avatarUri_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        avatarUri_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The URI of the agent's avatar. Avatars are used throughout the Dialogflow
+     * console and in the self-hosted [Web
+     * Demo](https://cloud.google.com/dialogflow/docs/integrations/web-demo)
+     * integration.
+     * </pre>
+     *
+     * <code>string avatar_uri = 7;</code>
+     *
+     * @param value The avatarUri to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAvatarUri(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      avatarUri_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The URI of the agent's avatar. Avatars are used throughout the Dialogflow
+     * console and in the self-hosted [Web
+     * Demo](https://cloud.google.com/dialogflow/docs/integrations/web-demo)
+     * integration.
+     * </pre>
+     *
+     * <code>string avatar_uri = 7;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearAvatarUri() {
+
+      avatarUri_ = getDefaultInstance().getAvatarUri();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The URI of the agent's avatar. Avatars are used throughout the Dialogflow
+     * console and in the self-hosted [Web
+     * Demo](https://cloud.google.com/dialogflow/docs/integrations/web-demo)
+     * integration.
+     * </pre>
+     *
+     * <code>string avatar_uri = 7;</code>
+     *
+     * @param value The bytes for avatarUri to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAvatarUriBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      avatarUri_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings speechToTextSettings_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings,
+            com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettingsOrBuilder>
+        speechToTextSettingsBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Speech recognition related settings.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings speech_to_text_settings = 13;
+     * </code>
+     *
+     * @return Whether the speechToTextSettings field is set.
+     */
+    public boolean hasSpeechToTextSettings() {
+      return speechToTextSettingsBuilder_ != null || speechToTextSettings_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Speech recognition related settings.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings speech_to_text_settings = 13;
+     * </code>
+     *
+     * @return The speechToTextSettings.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings getSpeechToTextSettings() {
+      if (speechToTextSettingsBuilder_ == null) {
+        return speechToTextSettings_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings.getDefaultInstance()
+            : speechToTextSettings_;
+      } else {
+        return speechToTextSettingsBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Speech recognition related settings.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings speech_to_text_settings = 13;
+     * </code>
+     */
+    public Builder setSpeechToTextSettings(
+        com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings value) {
+      if (speechToTextSettingsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        speechToTextSettings_ = value;
+        onChanged();
+      } else {
+        speechToTextSettingsBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Speech recognition related settings.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings speech_to_text_settings = 13;
+     * </code>
+     */
+    public Builder setSpeechToTextSettings(
+        com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings.Builder builderForValue) {
+      if (speechToTextSettingsBuilder_ == null) {
+        speechToTextSettings_ = builderForValue.build();
+        onChanged();
+      } else {
+        speechToTextSettingsBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Speech recognition related settings.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings speech_to_text_settings = 13;
+     * </code>
+     */
+    public Builder mergeSpeechToTextSettings(
+        com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings value) {
+      if (speechToTextSettingsBuilder_ == null) {
+        if (speechToTextSettings_ != null) {
+          speechToTextSettings_ =
+              com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings.newBuilder(
+                      speechToTextSettings_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          speechToTextSettings_ = value;
+        }
+        onChanged();
+      } else {
+        speechToTextSettingsBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Speech recognition related settings.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings speech_to_text_settings = 13;
+     * </code>
+     */
+    public Builder clearSpeechToTextSettings() {
+      if (speechToTextSettingsBuilder_ == null) {
+        speechToTextSettings_ = null;
+        onChanged();
+      } else {
+        speechToTextSettings_ = null;
+        speechToTextSettingsBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Speech recognition related settings.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings speech_to_text_settings = 13;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings.Builder
+        getSpeechToTextSettingsBuilder() {
+
+      onChanged();
+      return getSpeechToTextSettingsFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Speech recognition related settings.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings speech_to_text_settings = 13;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettingsOrBuilder
+        getSpeechToTextSettingsOrBuilder() {
+      if (speechToTextSettingsBuilder_ != null) {
+        return speechToTextSettingsBuilder_.getMessageOrBuilder();
+      } else {
+        return speechToTextSettings_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings.getDefaultInstance()
+            : speechToTextSettings_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Speech recognition related settings.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings speech_to_text_settings = 13;
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings,
+            com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettingsOrBuilder>
+        getSpeechToTextSettingsFieldBuilder() {
+      if (speechToTextSettingsBuilder_ == null) {
+        speechToTextSettingsBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings,
+                com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettingsOrBuilder>(
+                getSpeechToTextSettings(), getParentForChildren(), isClean());
+        speechToTextSettings_ = null;
+      }
+      return speechToTextSettingsBuilder_;
+    }
+
+    private java.lang.Object startFlow_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Immutable. Name of the start flow in this agent. A start flow will be automatically
+     * created when the agent is created, and can only be deleted by deleting the
+     * agent.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string start_flow = 16 [(.google.api.field_behavior) = IMMUTABLE, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The startFlow.
+     */
+    public java.lang.String getStartFlow() {
+      java.lang.Object ref = startFlow_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        startFlow_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Immutable. Name of the start flow in this agent. A start flow will be automatically
+     * created when the agent is created, and can only be deleted by deleting the
+     * agent.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string start_flow = 16 [(.google.api.field_behavior) = IMMUTABLE, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for startFlow.
+     */
+    public com.google.protobuf.ByteString getStartFlowBytes() {
+      java.lang.Object ref = startFlow_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        startFlow_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Immutable. Name of the start flow in this agent. A start flow will be automatically
+     * created when the agent is created, and can only be deleted by deleting the
+     * agent.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string start_flow = 16 [(.google.api.field_behavior) = IMMUTABLE, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The startFlow to set.
+     * @return This builder for chaining.
+     */
+    public Builder setStartFlow(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      startFlow_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Immutable. Name of the start flow in this agent. A start flow will be automatically
+     * created when the agent is created, and can only be deleted by deleting the
+     * agent.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string start_flow = 16 [(.google.api.field_behavior) = IMMUTABLE, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearStartFlow() {
+
+      startFlow_ = getDefaultInstance().getStartFlow();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Immutable. Name of the start flow in this agent. A start flow will be automatically
+     * created when the agent is created, and can only be deleted by deleting the
+     * agent.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string start_flow = 16 [(.google.api.field_behavior) = IMMUTABLE, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for startFlow to set.
+     * @return This builder for chaining.
+     */
+    public Builder setStartFlowBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      startFlow_ = value;
+      onChanged();
+      return this;
+    }
+
+    private boolean enableStackdriverLogging_;
+    /**
+     *
+     *
+     * <pre>
+     * Indicates if stackdriver logging is enabled for the agent.
+     * </pre>
+     *
+     * <code>bool enable_stackdriver_logging = 18;</code>
+     *
+     * @return The enableStackdriverLogging.
+     */
+    @java.lang.Override
+    public boolean getEnableStackdriverLogging() {
+      return enableStackdriverLogging_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates if stackdriver logging is enabled for the agent.
+     * </pre>
+     *
+     * <code>bool enable_stackdriver_logging = 18;</code>
+     *
+     * @param value The enableStackdriverLogging to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEnableStackdriverLogging(boolean value) {
+
+      enableStackdriverLogging_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates if stackdriver logging is enabled for the agent.
+     * </pre>
+     *
+     * <code>bool enable_stackdriver_logging = 18;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearEnableStackdriverLogging() {
+
+      enableStackdriverLogging_ = false;
+      onChanged();
+      return this;
+    }
+
+    private boolean enableSpellCorrection_;
+    /**
+     *
+     *
+     * <pre>
+     * Indicates if automatic spell correction is enabled in detect intent
+     * requests.
+     * </pre>
+     *
+     * <code>bool enable_spell_correction = 20;</code>
+     *
+     * @return The enableSpellCorrection.
+     */
+    @java.lang.Override
+    public boolean getEnableSpellCorrection() {
+      return enableSpellCorrection_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates if automatic spell correction is enabled in detect intent
+     * requests.
+     * </pre>
+     *
+     * <code>bool enable_spell_correction = 20;</code>
+     *
+     * @param value The enableSpellCorrection to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEnableSpellCorrection(boolean value) {
+
+      enableSpellCorrection_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates if automatic spell correction is enabled in detect intent
+     * requests.
+     * </pre>
+     *
+     * <code>bool enable_spell_correction = 20;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearEnableSpellCorrection() {
+
+      enableSpellCorrection_ = false;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.Agent)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.Agent)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.Agent DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.Agent();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Agent getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<Agent> PARSER =
+      new com.google.protobuf.AbstractParser<Agent>() {
+        @java.lang.Override
+        public Agent parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new Agent(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<Agent> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<Agent> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Agent getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentName.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentName.java
new file mode 100644
index 000000000..679030d83
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentName.java
@@ -0,0 +1,210 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+/** AUTO-GENERATED DOCUMENTATION AND CLASS */
+@javax.annotation.Generated("by GAPIC protoc plugin")
+public class AgentName implements ResourceName {
+
+  private static final PathTemplate PATH_TEMPLATE =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/agents/{agent}");
+
+  private volatile Map<String, String> fieldValuesMap;
+
+  private final String project;
+  private final String location;
+  private final String agent;
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public String getAgent() {
+    return agent;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  private AgentName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    agent = Preconditions.checkNotNull(builder.getAgent());
+  }
+
+  public static AgentName of(String project, String location, String agent) {
+    return newBuilder().setProject(project).setLocation(location).setAgent(agent).build();
+  }
+
+  public static String format(String project, String location, String agent) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .build()
+        .toString();
+  }
+
+  public static AgentName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    Map<String, String> matchMap =
+        PATH_TEMPLATE.validatedMatch(
+            formattedString, "AgentName.parse: formattedString not in valid format");
+    return of(matchMap.get("project"), matchMap.get("location"), matchMap.get("agent"));
+  }
+
+  public static List<AgentName> parseList(List<String> formattedStrings) {
+    List<AgentName> list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List<String> toStringList(List<AgentName> values) {
+    List<String> list = new ArrayList<String>(values.size());
+    for (AgentName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PATH_TEMPLATE.matches(formattedString);
+  }
+
+  public Map<String, String> getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder<String, String> fieldMapBuilder = ImmutableMap.builder();
+          fieldMapBuilder.put("project", project);
+          fieldMapBuilder.put("location", location);
+          fieldMapBuilder.put("agent", agent);
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return PATH_TEMPLATE.instantiate("project", project, "location", location, "agent", agent);
+  }
+
+  /** Builder for AgentName. */
+  public static class Builder {
+
+    private String project;
+    private String location;
+    private String agent;
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getAgent() {
+      return agent;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public Builder setAgent(String agent) {
+      this.agent = agent;
+      return this;
+    }
+
+    private Builder() {}
+
+    private Builder(AgentName agentName) {
+      project = agentName.project;
+      location = agentName.location;
+      agent = agentName.agent;
+    }
+
+    public AgentName build() {
+      return new AgentName(this);
+    }
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o instanceof AgentName) {
+      AgentName that = (AgentName) o;
+      return (this.project.equals(that.project))
+          && (this.location.equals(that.location))
+          && (this.agent.equals(that.agent));
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= project.hashCode();
+    h *= 1000003;
+    h ^= location.hashCode();
+    h *= 1000003;
+    h ^= agent.hashCode();
+    return h;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentOrBuilder.java
new file mode 100644
index 000000000..10b3e8539
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentOrBuilder.java
@@ -0,0 +1,304 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface AgentOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.Agent)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the agent.
+   * Required for the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method. [Agents.CreateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.CreateAgent]
+   * populates the name automatically.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the agent.
+   * Required for the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method. [Agents.CreateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.CreateAgent]
+   * populates the name automatically.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the agent, unique within the location.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The displayName.
+   */
+  java.lang.String getDisplayName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the agent, unique within the location.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for displayName.
+   */
+  com.google.protobuf.ByteString getDisplayNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Immutable. The default language of the agent as a language tag.
+   * See [Language
+   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * for a list of the currently supported language codes.
+   * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method.
+   * </pre>
+   *
+   * <code>string default_language_code = 3 [(.google.api.field_behavior) = IMMUTABLE];</code>
+   *
+   * @return The defaultLanguageCode.
+   */
+  java.lang.String getDefaultLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * Immutable. The default language of the agent as a language tag.
+   * See [Language
+   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * for a list of the currently supported language codes.
+   * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method.
+   * </pre>
+   *
+   * <code>string default_language_code = 3 [(.google.api.field_behavior) = IMMUTABLE];</code>
+   *
+   * @return The bytes for defaultLanguageCode.
+   */
+  com.google.protobuf.ByteString getDefaultLanguageCodeBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The time zone of the agent from the [time zone
+   * database](https://www.iana.org/time-zones), e.g., America/New_York,
+   * Europe/Paris.
+   * </pre>
+   *
+   * <code>string time_zone = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The timeZone.
+   */
+  java.lang.String getTimeZone();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The time zone of the agent from the [time zone
+   * database](https://www.iana.org/time-zones), e.g., America/New_York,
+   * Europe/Paris.
+   * </pre>
+   *
+   * <code>string time_zone = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for timeZone.
+   */
+  com.google.protobuf.ByteString getTimeZoneBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The description of the agent. The maximum length is 500 characters. If
+   * exceeded, the request is rejected.
+   * </pre>
+   *
+   * <code>string description = 6;</code>
+   *
+   * @return The description.
+   */
+  java.lang.String getDescription();
+  /**
+   *
+   *
+   * <pre>
+   * The description of the agent. The maximum length is 500 characters. If
+   * exceeded, the request is rejected.
+   * </pre>
+   *
+   * <code>string description = 6;</code>
+   *
+   * @return The bytes for description.
+   */
+  com.google.protobuf.ByteString getDescriptionBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The URI of the agent's avatar. Avatars are used throughout the Dialogflow
+   * console and in the self-hosted [Web
+   * Demo](https://cloud.google.com/dialogflow/docs/integrations/web-demo)
+   * integration.
+   * </pre>
+   *
+   * <code>string avatar_uri = 7;</code>
+   *
+   * @return The avatarUri.
+   */
+  java.lang.String getAvatarUri();
+  /**
+   *
+   *
+   * <pre>
+   * The URI of the agent's avatar. Avatars are used throughout the Dialogflow
+   * console and in the self-hosted [Web
+   * Demo](https://cloud.google.com/dialogflow/docs/integrations/web-demo)
+   * integration.
+   * </pre>
+   *
+   * <code>string avatar_uri = 7;</code>
+   *
+   * @return The bytes for avatarUri.
+   */
+  com.google.protobuf.ByteString getAvatarUriBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Speech recognition related settings.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings speech_to_text_settings = 13;
+   * </code>
+   *
+   * @return Whether the speechToTextSettings field is set.
+   */
+  boolean hasSpeechToTextSettings();
+  /**
+   *
+   *
+   * <pre>
+   * Speech recognition related settings.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings speech_to_text_settings = 13;
+   * </code>
+   *
+   * @return The speechToTextSettings.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings getSpeechToTextSettings();
+  /**
+   *
+   *
+   * <pre>
+   * Speech recognition related settings.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings speech_to_text_settings = 13;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettingsOrBuilder
+      getSpeechToTextSettingsOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Immutable. Name of the start flow in this agent. A start flow will be automatically
+   * created when the agent is created, and can only be deleted by deleting the
+   * agent.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string start_flow = 16 [(.google.api.field_behavior) = IMMUTABLE, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The startFlow.
+   */
+  java.lang.String getStartFlow();
+  /**
+   *
+   *
+   * <pre>
+   * Immutable. Name of the start flow in this agent. A start flow will be automatically
+   * created when the agent is created, and can only be deleted by deleting the
+   * agent.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string start_flow = 16 [(.google.api.field_behavior) = IMMUTABLE, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for startFlow.
+   */
+  com.google.protobuf.ByteString getStartFlowBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Indicates if stackdriver logging is enabled for the agent.
+   * </pre>
+   *
+   * <code>bool enable_stackdriver_logging = 18;</code>
+   *
+   * @return The enableStackdriverLogging.
+   */
+  boolean getEnableStackdriverLogging();
+
+  /**
+   *
+   *
+   * <pre>
+   * Indicates if automatic spell correction is enabled in detect intent
+   * requests.
+   * </pre>
+   *
+   * <code>bool enable_spell_correction = 20;</code>
+   *
+   * @return The enableSpellCorrection.
+   */
+  boolean getEnableSpellCorrection();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentProto.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentProto.java
new file mode 100644
index 000000000..ee7514b79
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentProto.java
@@ -0,0 +1,305 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public final class AgentProto {
+  private AgentProto() {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistryLite registry) {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions((com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_SpeechToTextSettings_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_SpeechToTextSettings_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Agent_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Agent_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListAgentsRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListAgentsRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListAgentsResponse_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListAgentsResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_GetAgentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_GetAgentRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_CreateAgentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_CreateAgentRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateAgentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateAgentRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteAgentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteAgentRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ExportAgentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ExportAgentRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ExportAgentResponse_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ExportAgentResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_RestoreAgentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_RestoreAgentRequest_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
+    return descriptor;
+  }
+
+  private static com.google.protobuf.Descriptors.FileDescriptor descriptor;
+
+  static {
+    java.lang.String[] descriptorData = {
+      "\n.google/cloud/dialogflow/cx/v3beta1/age"
+          + "nt.proto\022\"google.cloud.dialogflow.cx.v3b"
+          + "eta1\032\034google/api/annotations.proto\032\027goog"
+          + "le/api/client.proto\032\037google/api/field_be"
+          + "havior.proto\032\031google/api/resource.proto\032"
+          + "-google/cloud/dialogflow/cx/v3beta1/flow"
+          + ".proto\032#google/longrunning/operations.pr"
+          + "oto\032\033google/protobuf/empty.proto\032 google"
+          + "/protobuf/field_mask.proto\"8\n\024SpeechToTe"
+          + "xtSettings\022 \n\030enable_speech_adaptation\030\001"
+          + " \001(\010\"\317\003\n\005Agent\022\014\n\004name\030\001 \001(\t\022\031\n\014display_"
+          + "name\030\002 \001(\tB\003\340A\002\022\"\n\025default_language_code"
+          + "\030\003 \001(\tB\003\340A\005\022\026\n\ttime_zone\030\005 \001(\tB\003\340A\002\022\023\n\013d"
+          + "escription\030\006 \001(\t\022\022\n\navatar_uri\030\007 \001(\t\022Y\n\027"
+          + "speech_to_text_settings\030\r \001(\01328.google.c"
+          + "loud.dialogflow.cx.v3beta1.SpeechToTextS"
+          + "ettings\022:\n\nstart_flow\030\020 \001(\tB&\340A\005\372A \n\036dia"
+          + "logflow.googleapis.com/Flow\022\"\n\032enable_st"
+          + "ackdriver_logging\030\022 \001(\010\022\037\n\027enable_spell_"
+          + "correction\030\024 \001(\010:\\\352AY\n\037dialogflow.google"
+          + "apis.com/Agent\0226projects/{project}/locat"
+          + "ions/{location}/agents/{agent}\"s\n\021ListAg"
+          + "entsRequest\0227\n\006parent\030\001 \001(\tB\'\340A\002\372A!\022\037dia"
+          + "logflow.googleapis.com/Agent\022\021\n\tpage_siz"
+          + "e\030\002 \001(\005\022\022\n\npage_token\030\003 \001(\t\"h\n\022ListAgent"
+          + "sResponse\0229\n\006agents\030\001 \003(\0132).google.cloud"
+          + ".dialogflow.cx.v3beta1.Agent\022\027\n\017next_pag"
+          + "e_token\030\002 \001(\t\"H\n\017GetAgentRequest\0225\n\004name"
+          + "\030\001 \001(\tB\'\340A\002\372A!\n\037dialogflow.googleapis.co"
+          + "m/Agent\"\214\001\n\022CreateAgentRequest\0227\n\006parent"
+          + "\030\001 \001(\tB\'\340A\002\372A!\022\037dialogflow.googleapis.co"
+          + "m/Agent\022=\n\005agent\030\002 \001(\0132).google.cloud.di"
+          + "alogflow.cx.v3beta1.AgentB\003\340A\002\"\204\001\n\022Updat"
+          + "eAgentRequest\022=\n\005agent\030\001 \001(\0132).google.cl"
+          + "oud.dialogflow.cx.v3beta1.AgentB\003\340A\002\022/\n\013"
+          + "update_mask\030\002 \001(\0132\032.google.protobuf.Fiel"
+          + "dMask\"K\n\022DeleteAgentRequest\0225\n\004name\030\001 \001("
+          + "\tB\'\340A\002\372A!\n\037dialogflow.googleapis.com/Age"
+          + "nt\"c\n\022ExportAgentRequest\0225\n\004name\030\001 \001(\tB\'"
+          + "\340A\002\372A!\n\037dialogflow.googleapis.com/Agent\022"
+          + "\026\n\tagent_uri\030\002 \001(\tB\003\340A\001\"L\n\023ExportAgentRe"
+          + "sponse\022\023\n\tagent_uri\030\001 \001(\tH\000\022\027\n\ragent_con"
+          + "tent\030\002 \001(\014H\000B\007\n\005agent\"\203\001\n\023RestoreAgentRe"
+          + "quest\0225\n\004name\030\001 \001(\tB\'\340A\002\372A!\n\037dialogflow."
+          + "googleapis.com/Agent\022\023\n\tagent_uri\030\002 \001(\tH"
+          + "\000\022\027\n\ragent_content\030\003 \001(\014H\000B\007\n\005agent2\327\013\n\006"
+          + "Agents\022\275\001\n\nListAgents\0225.google.cloud.dia"
+          + "logflow.cx.v3beta1.ListAgentsRequest\0326.g"
+          + "oogle.cloud.dialogflow.cx.v3beta1.ListAg"
+          + "entsResponse\"@\202\323\344\223\0021\022//v3beta1/{parent=p"
+          + "rojects/*/locations/*}/agents\332A\006parent\022\252"
+          + "\001\n\010GetAgent\0223.google.cloud.dialogflow.cx"
+          + ".v3beta1.GetAgentRequest\032).google.cloud."
+          + "dialogflow.cx.v3beta1.Agent\">\202\323\344\223\0021\022//v3"
+          + "beta1/{name=projects/*/locations/*/agent"
+          + "s/*}\332A\004name\022\277\001\n\013CreateAgent\0226.google.clo"
+          + "ud.dialogflow.cx.v3beta1.CreateAgentRequ"
+          + "est\032).google.cloud.dialogflow.cx.v3beta1"
+          + ".Agent\"M\202\323\344\223\0028\"//v3beta1/{parent=project"
+          + "s/*/locations/*}/agents:\005agent\332A\014parent,"
+          + "agent\022\312\001\n\013UpdateAgent\0226.google.cloud.dia"
+          + "logflow.cx.v3beta1.UpdateAgentRequest\032)."
+          + "google.cloud.dialogflow.cx.v3beta1.Agent"
+          + "\"X\202\323\344\223\002>25/v3beta1/{agent.name=projects/"
+          + "*/locations/*/agents/*}:\005agent\332A\021agent,u"
+          + "pdate_mask\022\235\001\n\013DeleteAgent\0226.google.clou"
+          + "d.dialogflow.cx.v3beta1.DeleteAgentReque"
+          + "st\032\026.google.protobuf.Empty\">\202\323\344\223\0021*//v3b"
+          + "eta1/{name=projects/*/locations/*/agents"
+          + "/*}\332A\004name\022\327\001\n\013ExportAgent\0226.google.clou"
+          + "d.dialogflow.cx.v3beta1.ExportAgentReque"
+          + "st\032\035.google.longrunning.Operation\"q\202\323\344\223\002"
+          + ";\"6/v3beta1/{name=projects/*/locations/*"
+          + "/agents/*}:export:\001*\312A-\n\023ExportAgentResp"
+          + "onse\022\026google.protobuf.Struct\022\334\001\n\014Restore"
+          + "Agent\0227.google.cloud.dialogflow.cx.v3bet"
+          + "a1.RestoreAgentRequest\032\035.google.longrunn"
+          + "ing.Operation\"t\202\323\344\223\002<\"7/v3beta1/{name=pr"
+          + "ojects/*/locations/*/agents/*}:restore:\001"
+          + "*\312A/\n\025google.protobuf.Empty\022\026google.prot"
+          + "obuf.Struct\032x\312A\031dialogflow.googleapis.co"
+          + "m\322AYhttps://www.googleapis.com/auth/clou"
+          + "d-platform,https://www.googleapis.com/au"
+          + "th/dialogflowB\251\001\n&com.google.cloud.dialo"
+          + "gflow.cx.v3beta1B\nAgentProtoP\001ZDgoogle.g"
+          + "olang.org/genproto/googleapis/cloud/dial"
+          + "ogflow/cx/v3beta1;cx\370\001\001\242\002\002DF\252\002\"Google.Cl"
+          + "oud.Dialogflow.Cx.V3Beta1b\006proto3"
+    };
+    descriptor =
+        com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
+            descriptorData,
+            new com.google.protobuf.Descriptors.FileDescriptor[] {
+              com.google.api.AnnotationsProto.getDescriptor(),
+              com.google.api.ClientProto.getDescriptor(),
+              com.google.api.FieldBehaviorProto.getDescriptor(),
+              com.google.api.ResourceProto.getDescriptor(),
+              com.google.cloud.dialogflow.cx.v3beta1.FlowProto.getDescriptor(),
+              com.google.longrunning.OperationsProto.getDescriptor(),
+              com.google.protobuf.EmptyProto.getDescriptor(),
+              com.google.protobuf.FieldMaskProto.getDescriptor(),
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_SpeechToTextSettings_descriptor =
+        getDescriptor().getMessageTypes().get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_SpeechToTextSettings_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_SpeechToTextSettings_descriptor,
+            new java.lang.String[] {
+              "EnableSpeechAdaptation",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Agent_descriptor =
+        getDescriptor().getMessageTypes().get(1);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Agent_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_Agent_descriptor,
+            new java.lang.String[] {
+              "Name",
+              "DisplayName",
+              "DefaultLanguageCode",
+              "TimeZone",
+              "Description",
+              "AvatarUri",
+              "SpeechToTextSettings",
+              "StartFlow",
+              "EnableStackdriverLogging",
+              "EnableSpellCorrection",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListAgentsRequest_descriptor =
+        getDescriptor().getMessageTypes().get(2);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListAgentsRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ListAgentsRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "PageSize", "PageToken",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListAgentsResponse_descriptor =
+        getDescriptor().getMessageTypes().get(3);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListAgentsResponse_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ListAgentsResponse_descriptor,
+            new java.lang.String[] {
+              "Agents", "NextPageToken",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_GetAgentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(4);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_GetAgentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_GetAgentRequest_descriptor,
+            new java.lang.String[] {
+              "Name",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_CreateAgentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(5);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_CreateAgentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_CreateAgentRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "Agent",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateAgentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(6);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateAgentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateAgentRequest_descriptor,
+            new java.lang.String[] {
+              "Agent", "UpdateMask",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteAgentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(7);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteAgentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteAgentRequest_descriptor,
+            new java.lang.String[] {
+              "Name",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ExportAgentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(8);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ExportAgentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ExportAgentRequest_descriptor,
+            new java.lang.String[] {
+              "Name", "AgentUri",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ExportAgentResponse_descriptor =
+        getDescriptor().getMessageTypes().get(9);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ExportAgentResponse_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ExportAgentResponse_descriptor,
+            new java.lang.String[] {
+              "AgentUri", "AgentContent", "Agent",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_RestoreAgentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(10);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_RestoreAgentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_RestoreAgentRequest_descriptor,
+            new java.lang.String[] {
+              "Name", "AgentUri", "AgentContent", "Agent",
+            });
+    com.google.protobuf.ExtensionRegistry registry =
+        com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.ClientProto.defaultHost);
+    registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
+    registry.add(com.google.api.AnnotationsProto.http);
+    registry.add(com.google.api.ClientProto.methodSignature);
+    registry.add(com.google.api.ClientProto.oauthScopes);
+    registry.add(com.google.api.ResourceProto.resource);
+    registry.add(com.google.api.ResourceProto.resourceReference);
+    registry.add(com.google.longrunning.OperationsProto.operationInfo);
+    com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
+        descriptor, registry);
+    com.google.api.AnnotationsProto.getDescriptor();
+    com.google.api.ClientProto.getDescriptor();
+    com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.api.ResourceProto.getDescriptor();
+    com.google.cloud.dialogflow.cx.v3beta1.FlowProto.getDescriptor();
+    com.google.longrunning.OperationsProto.getDescriptor();
+    com.google.protobuf.EmptyProto.getDescriptor();
+    com.google.protobuf.FieldMaskProto.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AudioConfigProto.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AudioConfigProto.java
new file mode 100644
index 000000000..b24b909f6
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AudioConfigProto.java
@@ -0,0 +1,181 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/audio_config.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public final class AudioConfigProto {
+  private AudioConfigProto() {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistryLite registry) {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions((com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_SpeechWordInfo_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_SpeechWordInfo_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_InputAudioConfig_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_InputAudioConfig_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_VoiceSelectionParams_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_VoiceSelectionParams_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_SynthesizeSpeechConfig_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_SynthesizeSpeechConfig_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_OutputAudioConfig_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_OutputAudioConfig_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
+    return descriptor;
+  }
+
+  private static com.google.protobuf.Descriptors.FileDescriptor descriptor;
+
+  static {
+    java.lang.String[] descriptorData = {
+      "\n5google/cloud/dialogflow/cx/v3beta1/aud"
+          + "io_config.proto\022\"google.cloud.dialogflow"
+          + ".cx.v3beta1\032\037google/api/field_behavior.p"
+          + "roto\032\031google/api/resource.proto\032\036google/"
+          + "protobuf/duration.proto\032\034google/api/anno"
+          + "tations.proto\"\222\001\n\016SpeechWordInfo\022\014\n\004word"
+          + "\030\003 \001(\t\022/\n\014start_offset\030\001 \001(\0132\031.google.pr"
+          + "otobuf.Duration\022-\n\nend_offset\030\002 \001(\0132\031.go"
+          + "ogle.protobuf.Duration\022\022\n\nconfidence\030\004 \001"
+          + "(\002\"\245\002\n\020InputAudioConfig\022N\n\016audio_encodin"
+          + "g\030\001 \001(\01621.google.cloud.dialogflow.cx.v3b"
+          + "eta1.AudioEncodingB\003\340A\002\022\031\n\021sample_rate_h"
+          + "ertz\030\002 \001(\005\022\030\n\020enable_word_info\030\r \001(\010\022\024\n\014"
+          + "phrase_hints\030\004 \003(\t\022\r\n\005model\030\007 \001(\t\022M\n\rmod"
+          + "el_variant\030\n \001(\01626.google.cloud.dialogfl"
+          + "ow.cx.v3beta1.SpeechModelVariant\022\030\n\020sing"
+          + "le_utterance\030\010 \001(\010\"n\n\024VoiceSelectionPara"
+          + "ms\022\014\n\004name\030\001 \001(\t\022H\n\013ssml_gender\030\002 \001(\01623."
+          + "google.cloud.dialogflow.cx.v3beta1.SsmlV"
+          + "oiceGender\"\273\001\n\026SynthesizeSpeechConfig\022\025\n"
+          + "\rspeaking_rate\030\001 \001(\001\022\r\n\005pitch\030\002 \001(\001\022\026\n\016v"
+          + "olume_gain_db\030\003 \001(\001\022\032\n\022effects_profile_i"
+          + "d\030\005 \003(\t\022G\n\005voice\030\004 \001(\01328.google.cloud.di"
+          + "alogflow.cx.v3beta1.VoiceSelectionParams"
+          + "\"\342\001\n\021OutputAudioConfig\022T\n\016audio_encoding"
+          + "\030\001 \001(\01627.google.cloud.dialogflow.cx.v3be"
+          + "ta1.OutputAudioEncodingB\003\340A\002\022\031\n\021sample_r"
+          + "ate_hertz\030\002 \001(\005\022\\\n\030synthesize_speech_con"
+          + "fig\030\003 \001(\0132:.google.cloud.dialogflow.cx.v"
+          + "3beta1.SynthesizeSpeechConfig*\373\001\n\rAudioE"
+          + "ncoding\022\036\n\032AUDIO_ENCODING_UNSPECIFIED\020\000\022"
+          + "\034\n\030AUDIO_ENCODING_LINEAR_16\020\001\022\027\n\023AUDIO_E"
+          + "NCODING_FLAC\020\002\022\030\n\024AUDIO_ENCODING_MULAW\020\003"
+          + "\022\026\n\022AUDIO_ENCODING_AMR\020\004\022\031\n\025AUDIO_ENCODI"
+          + "NG_AMR_WB\020\005\022\033\n\027AUDIO_ENCODING_OGG_OPUS\020\006"
+          + "\022)\n%AUDIO_ENCODING_SPEEX_WITH_HEADER_BYT"
+          + "E\020\007*v\n\022SpeechModelVariant\022$\n SPEECH_MODE"
+          + "L_VARIANT_UNSPECIFIED\020\000\022\026\n\022USE_BEST_AVAI"
+          + "LABLE\020\001\022\020\n\014USE_STANDARD\020\002\022\020\n\014USE_ENHANCE"
+          + "D\020\003*\215\001\n\017SsmlVoiceGender\022!\n\035SSML_VOICE_GE"
+          + "NDER_UNSPECIFIED\020\000\022\032\n\026SSML_VOICE_GENDER_"
+          + "MALE\020\001\022\034\n\030SSML_VOICE_GENDER_FEMALE\020\002\022\035\n\031"
+          + "SSML_VOICE_GENDER_NEUTRAL\020\003*\354\001\n\023OutputAu"
+          + "dioEncoding\022%\n!OUTPUT_AUDIO_ENCODING_UNS"
+          + "PECIFIED\020\000\022#\n\037OUTPUT_AUDIO_ENCODING_LINE"
+          + "AR_16\020\001\022\035\n\031OUTPUT_AUDIO_ENCODING_MP3\020\002\022%"
+          + "\n!OUTPUT_AUDIO_ENCODING_MP3_64_KBPS\020\004\022\"\n"
+          + "\036OUTPUT_AUDIO_ENCODING_OGG_OPUS\020\003\022\037\n\033OUT"
+          + "PUT_AUDIO_ENCODING_MULAW\020\005B\257\001\n&com.googl"
+          + "e.cloud.dialogflow.cx.v3beta1B\020AudioConf"
+          + "igProtoP\001ZDgoogle.golang.org/genproto/go"
+          + "ogleapis/cloud/dialogflow/cx/v3beta1;cx\370"
+          + "\001\001\242\002\002DF\252\002\"Google.Cloud.Dialogflow.Cx.V3B"
+          + "eta1b\006proto3"
+    };
+    descriptor =
+        com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
+            descriptorData,
+            new com.google.protobuf.Descriptors.FileDescriptor[] {
+              com.google.api.FieldBehaviorProto.getDescriptor(),
+              com.google.api.ResourceProto.getDescriptor(),
+              com.google.protobuf.DurationProto.getDescriptor(),
+              com.google.api.AnnotationsProto.getDescriptor(),
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_SpeechWordInfo_descriptor =
+        getDescriptor().getMessageTypes().get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_SpeechWordInfo_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_SpeechWordInfo_descriptor,
+            new java.lang.String[] {
+              "Word", "StartOffset", "EndOffset", "Confidence",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_InputAudioConfig_descriptor =
+        getDescriptor().getMessageTypes().get(1);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_InputAudioConfig_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_InputAudioConfig_descriptor,
+            new java.lang.String[] {
+              "AudioEncoding",
+              "SampleRateHertz",
+              "EnableWordInfo",
+              "PhraseHints",
+              "Model",
+              "ModelVariant",
+              "SingleUtterance",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_VoiceSelectionParams_descriptor =
+        getDescriptor().getMessageTypes().get(2);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_VoiceSelectionParams_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_VoiceSelectionParams_descriptor,
+            new java.lang.String[] {
+              "Name", "SsmlGender",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_SynthesizeSpeechConfig_descriptor =
+        getDescriptor().getMessageTypes().get(3);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_SynthesizeSpeechConfig_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_SynthesizeSpeechConfig_descriptor,
+            new java.lang.String[] {
+              "SpeakingRate", "Pitch", "VolumeGainDb", "EffectsProfileId", "Voice",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_OutputAudioConfig_descriptor =
+        getDescriptor().getMessageTypes().get(4);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_OutputAudioConfig_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_OutputAudioConfig_descriptor,
+            new java.lang.String[] {
+              "AudioEncoding", "SampleRateHertz", "SynthesizeSpeechConfig",
+            });
+    com.google.protobuf.ExtensionRegistry registry =
+        com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
+    com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
+        descriptor, registry);
+    com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.api.ResourceProto.getDescriptor();
+    com.google.protobuf.DurationProto.getDescriptor();
+    com.google.api.AnnotationsProto.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AudioEncoding.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AudioEncoding.java
new file mode 100644
index 000000000..50f471eac
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AudioEncoding.java
@@ -0,0 +1,328 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/audio_config.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Audio encoding of the audio content sent in the conversational query request.
+ * Refer to the
+ * [Cloud Speech API
+ * documentation](https://cloud.google.com/speech-to-text/docs/basics) for more
+ * details.
+ * </pre>
+ *
+ * Protobuf enum {@code google.cloud.dialogflow.cx.v3beta1.AudioEncoding}
+ */
+public enum AudioEncoding implements com.google.protobuf.ProtocolMessageEnum {
+  /**
+   *
+   *
+   * <pre>
+   * Not specified.
+   * </pre>
+   *
+   * <code>AUDIO_ENCODING_UNSPECIFIED = 0;</code>
+   */
+  AUDIO_ENCODING_UNSPECIFIED(0),
+  /**
+   *
+   *
+   * <pre>
+   * Uncompressed 16-bit signed little-endian samples (Linear PCM).
+   * </pre>
+   *
+   * <code>AUDIO_ENCODING_LINEAR_16 = 1;</code>
+   */
+  AUDIO_ENCODING_LINEAR_16(1),
+  /**
+   *
+   *
+   * <pre>
+   * [`FLAC`](https://xiph.org/flac/documentation.html) (Free Lossless Audio
+   * Codec) is the recommended encoding because it is lossless (therefore
+   * recognition is not compromised) and requires only about half the
+   * bandwidth of `LINEAR16`. `FLAC` stream encoding supports 16-bit and
+   * 24-bit samples, however, not all fields in `STREAMINFO` are supported.
+   * </pre>
+   *
+   * <code>AUDIO_ENCODING_FLAC = 2;</code>
+   */
+  AUDIO_ENCODING_FLAC(2),
+  /**
+   *
+   *
+   * <pre>
+   * 8-bit samples that compand 14-bit audio samples using G.711 PCMU/mu-law.
+   * </pre>
+   *
+   * <code>AUDIO_ENCODING_MULAW = 3;</code>
+   */
+  AUDIO_ENCODING_MULAW(3),
+  /**
+   *
+   *
+   * <pre>
+   * Adaptive Multi-Rate Narrowband codec. `sample_rate_hertz` must be 8000.
+   * </pre>
+   *
+   * <code>AUDIO_ENCODING_AMR = 4;</code>
+   */
+  AUDIO_ENCODING_AMR(4),
+  /**
+   *
+   *
+   * <pre>
+   * Adaptive Multi-Rate Wideband codec. `sample_rate_hertz` must be 16000.
+   * </pre>
+   *
+   * <code>AUDIO_ENCODING_AMR_WB = 5;</code>
+   */
+  AUDIO_ENCODING_AMR_WB(5),
+  /**
+   *
+   *
+   * <pre>
+   * Opus encoded audio frames in Ogg container
+   * ([OggOpus](https://wiki.xiph.org/OggOpus)).
+   * `sample_rate_hertz` must be 16000.
+   * </pre>
+   *
+   * <code>AUDIO_ENCODING_OGG_OPUS = 6;</code>
+   */
+  AUDIO_ENCODING_OGG_OPUS(6),
+  /**
+   *
+   *
+   * <pre>
+   * Although the use of lossy encodings is not recommended, if a very low
+   * bitrate encoding is required, `OGG_OPUS` is highly preferred over
+   * Speex encoding. The [Speex](https://speex.org/) encoding supported by
+   * Dialogflow API has a header byte in each block, as in MIME type
+   * `audio/x-speex-with-header-byte`.
+   * It is a variant of the RTP Speex encoding defined in
+   * [RFC 5574](https://tools.ietf.org/html/rfc5574).
+   * The stream is a sequence of blocks, one block per RTP packet. Each block
+   * starts with a byte containing the length of the block, in bytes, followed
+   * by one or more frames of Speex data, padded to an integral number of
+   * bytes (octets) as specified in RFC 5574. In other words, each RTP header
+   * is replaced with a single byte containing the block length. Only Speex
+   * wideband is supported. `sample_rate_hertz` must be 16000.
+   * </pre>
+   *
+   * <code>AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE = 7;</code>
+   */
+  AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE(7),
+  UNRECOGNIZED(-1),
+  ;
+
+  /**
+   *
+   *
+   * <pre>
+   * Not specified.
+   * </pre>
+   *
+   * <code>AUDIO_ENCODING_UNSPECIFIED = 0;</code>
+   */
+  public static final int AUDIO_ENCODING_UNSPECIFIED_VALUE = 0;
+  /**
+   *
+   *
+   * <pre>
+   * Uncompressed 16-bit signed little-endian samples (Linear PCM).
+   * </pre>
+   *
+   * <code>AUDIO_ENCODING_LINEAR_16 = 1;</code>
+   */
+  public static final int AUDIO_ENCODING_LINEAR_16_VALUE = 1;
+  /**
+   *
+   *
+   * <pre>
+   * [`FLAC`](https://xiph.org/flac/documentation.html) (Free Lossless Audio
+   * Codec) is the recommended encoding because it is lossless (therefore
+   * recognition is not compromised) and requires only about half the
+   * bandwidth of `LINEAR16`. `FLAC` stream encoding supports 16-bit and
+   * 24-bit samples, however, not all fields in `STREAMINFO` are supported.
+   * </pre>
+   *
+   * <code>AUDIO_ENCODING_FLAC = 2;</code>
+   */
+  public static final int AUDIO_ENCODING_FLAC_VALUE = 2;
+  /**
+   *
+   *
+   * <pre>
+   * 8-bit samples that compand 14-bit audio samples using G.711 PCMU/mu-law.
+   * </pre>
+   *
+   * <code>AUDIO_ENCODING_MULAW = 3;</code>
+   */
+  public static final int AUDIO_ENCODING_MULAW_VALUE = 3;
+  /**
+   *
+   *
+   * <pre>
+   * Adaptive Multi-Rate Narrowband codec. `sample_rate_hertz` must be 8000.
+   * </pre>
+   *
+   * <code>AUDIO_ENCODING_AMR = 4;</code>
+   */
+  public static final int AUDIO_ENCODING_AMR_VALUE = 4;
+  /**
+   *
+   *
+   * <pre>
+   * Adaptive Multi-Rate Wideband codec. `sample_rate_hertz` must be 16000.
+   * </pre>
+   *
+   * <code>AUDIO_ENCODING_AMR_WB = 5;</code>
+   */
+  public static final int AUDIO_ENCODING_AMR_WB_VALUE = 5;
+  /**
+   *
+   *
+   * <pre>
+   * Opus encoded audio frames in Ogg container
+   * ([OggOpus](https://wiki.xiph.org/OggOpus)).
+   * `sample_rate_hertz` must be 16000.
+   * </pre>
+   *
+   * <code>AUDIO_ENCODING_OGG_OPUS = 6;</code>
+   */
+  public static final int AUDIO_ENCODING_OGG_OPUS_VALUE = 6;
+  /**
+   *
+   *
+   * <pre>
+   * Although the use of lossy encodings is not recommended, if a very low
+   * bitrate encoding is required, `OGG_OPUS` is highly preferred over
+   * Speex encoding. The [Speex](https://speex.org/) encoding supported by
+   * Dialogflow API has a header byte in each block, as in MIME type
+   * `audio/x-speex-with-header-byte`.
+   * It is a variant of the RTP Speex encoding defined in
+   * [RFC 5574](https://tools.ietf.org/html/rfc5574).
+   * The stream is a sequence of blocks, one block per RTP packet. Each block
+   * starts with a byte containing the length of the block, in bytes, followed
+   * by one or more frames of Speex data, padded to an integral number of
+   * bytes (octets) as specified in RFC 5574. In other words, each RTP header
+   * is replaced with a single byte containing the block length. Only Speex
+   * wideband is supported. `sample_rate_hertz` must be 16000.
+   * </pre>
+   *
+   * <code>AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE = 7;</code>
+   */
+  public static final int AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE_VALUE = 7;
+
+  public final int getNumber() {
+    if (this == UNRECOGNIZED) {
+      throw new java.lang.IllegalArgumentException(
+          "Can't get the number of an unknown enum value.");
+    }
+    return value;
+  }
+
+  /**
+   * @param value The numeric wire value of the corresponding enum entry.
+   * @return The enum associated with the given numeric wire value.
+   * @deprecated Use {@link #forNumber(int)} instead.
+   */
+  @java.lang.Deprecated
+  public static AudioEncoding valueOf(int value) {
+    return forNumber(value);
+  }
+
+  /**
+   * @param value The numeric wire value of the corresponding enum entry.
+   * @return The enum associated with the given numeric wire value.
+   */
+  public static AudioEncoding forNumber(int value) {
+    switch (value) {
+      case 0:
+        return AUDIO_ENCODING_UNSPECIFIED;
+      case 1:
+        return AUDIO_ENCODING_LINEAR_16;
+      case 2:
+        return AUDIO_ENCODING_FLAC;
+      case 3:
+        return AUDIO_ENCODING_MULAW;
+      case 4:
+        return AUDIO_ENCODING_AMR;
+      case 5:
+        return AUDIO_ENCODING_AMR_WB;
+      case 6:
+        return AUDIO_ENCODING_OGG_OPUS;
+      case 7:
+        return AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE;
+      default:
+        return null;
+    }
+  }
+
+  public static com.google.protobuf.Internal.EnumLiteMap<AudioEncoding> internalGetValueMap() {
+    return internalValueMap;
+  }
+
+  private static final com.google.protobuf.Internal.EnumLiteMap<AudioEncoding> internalValueMap =
+      new com.google.protobuf.Internal.EnumLiteMap<AudioEncoding>() {
+        public AudioEncoding findValueByNumber(int number) {
+          return AudioEncoding.forNumber(number);
+        }
+      };
+
+  public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+    if (this == UNRECOGNIZED) {
+      throw new java.lang.IllegalStateException(
+          "Can't get the descriptor of an unrecognized enum value.");
+    }
+    return getDescriptor().getValues().get(ordinal());
+  }
+
+  public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+    return getDescriptor();
+  }
+
+  public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto.getDescriptor()
+        .getEnumTypes()
+        .get(0);
+  }
+
+  private static final AudioEncoding[] VALUES = values();
+
+  public static AudioEncoding valueOf(com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+    if (desc.getType() != getDescriptor()) {
+      throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
+    }
+    if (desc.getIndex() == -1) {
+      return UNRECOGNIZED;
+    }
+    return VALUES[desc.getIndex()];
+  }
+
+  private final int value;
+
+  private AudioEncoding(int value) {
+    this.value = value;
+  }
+
+  // @@protoc_insertion_point(enum_scope:google.cloud.dialogflow.cx.v3beta1.AudioEncoding)
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AudioInput.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AudioInput.java
new file mode 100644
index 000000000..8a6b70203
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AudioInput.java
@@ -0,0 +1,882 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Represents the natural speech audio to be processed.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.AudioInput}
+ */
+public final class AudioInput extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.AudioInput)
+    AudioInputOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use AudioInput.newBuilder() to construct.
+  private AudioInput(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private AudioInput() {
+    audio_ = com.google.protobuf.ByteString.EMPTY;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new AudioInput();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private AudioInput(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.Builder subBuilder = null;
+              if (config_ != null) {
+                subBuilder = config_.toBuilder();
+              }
+              config_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(config_);
+                config_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 18:
+            {
+              audio_ = input.readBytes();
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_AudioInput_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_AudioInput_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.AudioInput.class,
+            com.google.cloud.dialogflow.cx.v3beta1.AudioInput.Builder.class);
+  }
+
+  public static final int CONFIG_FIELD_NUMBER = 1;
+  private com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig config_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. Instructs the speech recognizer how to process the speech audio.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.InputAudioConfig config = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the config field is set.
+   */
+  @java.lang.Override
+  public boolean hasConfig() {
+    return config_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. Instructs the speech recognizer how to process the speech audio.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.InputAudioConfig config = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The config.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig getConfig() {
+    return config_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.getDefaultInstance()
+        : config_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. Instructs the speech recognizer how to process the speech audio.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.InputAudioConfig config = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfigOrBuilder getConfigOrBuilder() {
+    return getConfig();
+  }
+
+  public static final int AUDIO_FIELD_NUMBER = 2;
+  private com.google.protobuf.ByteString audio_;
+  /**
+   *
+   *
+   * <pre>
+   * The natural language speech audio to be processed.
+   * A single request can contain up to 1 minute of speech audio data.
+   * The [transcribed text][google.cloud.dialogflow.cx.v3beta1.QueryResult.transcript] cannot contain more than 256
+   * bytes.
+   * For non-streaming audio detect intent, both `config` and `audio` must be
+   * provided.
+   * For streaming audio detect intent, `config` must be provided in
+   * the first request and `audio` must be provided in all following requests.
+   * </pre>
+   *
+   * <code>bytes audio = 2;</code>
+   *
+   * @return The audio.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getAudio() {
+    return audio_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (config_ != null) {
+      output.writeMessage(1, getConfig());
+    }
+    if (!audio_.isEmpty()) {
+      output.writeBytes(2, audio_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (config_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getConfig());
+    }
+    if (!audio_.isEmpty()) {
+      size += com.google.protobuf.CodedOutputStream.computeBytesSize(2, audio_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.AudioInput)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.AudioInput other =
+        (com.google.cloud.dialogflow.cx.v3beta1.AudioInput) obj;
+
+    if (hasConfig() != other.hasConfig()) return false;
+    if (hasConfig()) {
+      if (!getConfig().equals(other.getConfig())) return false;
+    }
+    if (!getAudio().equals(other.getAudio())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasConfig()) {
+      hash = (37 * hash) + CONFIG_FIELD_NUMBER;
+      hash = (53 * hash) + getConfig().hashCode();
+    }
+    hash = (37 * hash) + AUDIO_FIELD_NUMBER;
+    hash = (53 * hash) + getAudio().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.AudioInput parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.AudioInput parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.AudioInput parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.AudioInput parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.AudioInput parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.AudioInput parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.AudioInput parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.AudioInput parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.AudioInput parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.AudioInput parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.AudioInput parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.AudioInput parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.cx.v3beta1.AudioInput prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents the natural speech audio to be processed.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.AudioInput}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.AudioInput)
+      com.google.cloud.dialogflow.cx.v3beta1.AudioInputOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_AudioInput_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_AudioInput_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.AudioInput.class,
+              com.google.cloud.dialogflow.cx.v3beta1.AudioInput.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.AudioInput.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (configBuilder_ == null) {
+        config_ = null;
+      } else {
+        config_ = null;
+        configBuilder_ = null;
+      }
+      audio_ = com.google.protobuf.ByteString.EMPTY;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_AudioInput_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.AudioInput getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AudioInput.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.AudioInput build() {
+      com.google.cloud.dialogflow.cx.v3beta1.AudioInput result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.AudioInput buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.AudioInput result =
+          new com.google.cloud.dialogflow.cx.v3beta1.AudioInput(this);
+      if (configBuilder_ == null) {
+        result.config_ = config_;
+      } else {
+        result.config_ = configBuilder_.build();
+      }
+      result.audio_ = audio_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.AudioInput) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.AudioInput) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.AudioInput other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.AudioInput.getDefaultInstance())
+        return this;
+      if (other.hasConfig()) {
+        mergeConfig(other.getConfig());
+      }
+      if (other.getAudio() != com.google.protobuf.ByteString.EMPTY) {
+        setAudio(other.getAudio());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.AudioInput parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.AudioInput) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig config_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig,
+            com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfigOrBuilder>
+        configBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. Instructs the speech recognizer how to process the speech audio.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.InputAudioConfig config = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the config field is set.
+     */
+    public boolean hasConfig() {
+      return configBuilder_ != null || config_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Instructs the speech recognizer how to process the speech audio.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.InputAudioConfig config = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The config.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig getConfig() {
+      if (configBuilder_ == null) {
+        return config_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.getDefaultInstance()
+            : config_;
+      } else {
+        return configBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Instructs the speech recognizer how to process the speech audio.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.InputAudioConfig config = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setConfig(com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig value) {
+      if (configBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        config_ = value;
+        onChanged();
+      } else {
+        configBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Instructs the speech recognizer how to process the speech audio.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.InputAudioConfig config = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setConfig(
+        com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.Builder builderForValue) {
+      if (configBuilder_ == null) {
+        config_ = builderForValue.build();
+        onChanged();
+      } else {
+        configBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Instructs the speech recognizer how to process the speech audio.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.InputAudioConfig config = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeConfig(com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig value) {
+      if (configBuilder_ == null) {
+        if (config_ != null) {
+          config_ =
+              com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.newBuilder(config_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          config_ = value;
+        }
+        onChanged();
+      } else {
+        configBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Instructs the speech recognizer how to process the speech audio.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.InputAudioConfig config = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearConfig() {
+      if (configBuilder_ == null) {
+        config_ = null;
+        onChanged();
+      } else {
+        config_ = null;
+        configBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Instructs the speech recognizer how to process the speech audio.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.InputAudioConfig config = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.Builder getConfigBuilder() {
+
+      onChanged();
+      return getConfigFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Instructs the speech recognizer how to process the speech audio.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.InputAudioConfig config = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfigOrBuilder getConfigOrBuilder() {
+      if (configBuilder_ != null) {
+        return configBuilder_.getMessageOrBuilder();
+      } else {
+        return config_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.getDefaultInstance()
+            : config_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Instructs the speech recognizer how to process the speech audio.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.InputAudioConfig config = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig,
+            com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfigOrBuilder>
+        getConfigFieldBuilder() {
+      if (configBuilder_ == null) {
+        configBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig,
+                com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfigOrBuilder>(
+                getConfig(), getParentForChildren(), isClean());
+        config_ = null;
+      }
+      return configBuilder_;
+    }
+
+    private com.google.protobuf.ByteString audio_ = com.google.protobuf.ByteString.EMPTY;
+    /**
+     *
+     *
+     * <pre>
+     * The natural language speech audio to be processed.
+     * A single request can contain up to 1 minute of speech audio data.
+     * The [transcribed text][google.cloud.dialogflow.cx.v3beta1.QueryResult.transcript] cannot contain more than 256
+     * bytes.
+     * For non-streaming audio detect intent, both `config` and `audio` must be
+     * provided.
+     * For streaming audio detect intent, `config` must be provided in
+     * the first request and `audio` must be provided in all following requests.
+     * </pre>
+     *
+     * <code>bytes audio = 2;</code>
+     *
+     * @return The audio.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getAudio() {
+      return audio_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The natural language speech audio to be processed.
+     * A single request can contain up to 1 minute of speech audio data.
+     * The [transcribed text][google.cloud.dialogflow.cx.v3beta1.QueryResult.transcript] cannot contain more than 256
+     * bytes.
+     * For non-streaming audio detect intent, both `config` and `audio` must be
+     * provided.
+     * For streaming audio detect intent, `config` must be provided in
+     * the first request and `audio` must be provided in all following requests.
+     * </pre>
+     *
+     * <code>bytes audio = 2;</code>
+     *
+     * @param value The audio to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAudio(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      audio_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The natural language speech audio to be processed.
+     * A single request can contain up to 1 minute of speech audio data.
+     * The [transcribed text][google.cloud.dialogflow.cx.v3beta1.QueryResult.transcript] cannot contain more than 256
+     * bytes.
+     * For non-streaming audio detect intent, both `config` and `audio` must be
+     * provided.
+     * For streaming audio detect intent, `config` must be provided in
+     * the first request and `audio` must be provided in all following requests.
+     * </pre>
+     *
+     * <code>bytes audio = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearAudio() {
+
+      audio_ = getDefaultInstance().getAudio();
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.AudioInput)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.AudioInput)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.AudioInput DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.AudioInput();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.AudioInput getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<AudioInput> PARSER =
+      new com.google.protobuf.AbstractParser<AudioInput>() {
+        @java.lang.Override
+        public AudioInput parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new AudioInput(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<AudioInput> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<AudioInput> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.AudioInput getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AudioInputOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AudioInputOrBuilder.java
new file mode 100644
index 000000000..d5ee628a0
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AudioInputOrBuilder.java
@@ -0,0 +1,86 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface AudioInputOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.AudioInput)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. Instructs the speech recognizer how to process the speech audio.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.InputAudioConfig config = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the config field is set.
+   */
+  boolean hasConfig();
+  /**
+   *
+   *
+   * <pre>
+   * Required. Instructs the speech recognizer how to process the speech audio.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.InputAudioConfig config = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The config.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig getConfig();
+  /**
+   *
+   *
+   * <pre>
+   * Required. Instructs the speech recognizer how to process the speech audio.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.InputAudioConfig config = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfigOrBuilder getConfigOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The natural language speech audio to be processed.
+   * A single request can contain up to 1 minute of speech audio data.
+   * The [transcribed text][google.cloud.dialogflow.cx.v3beta1.QueryResult.transcript] cannot contain more than 256
+   * bytes.
+   * For non-streaming audio detect intent, both `config` and `audio` must be
+   * provided.
+   * For streaming audio detect intent, `config` must be provided in
+   * the first request and `audio` must be provided in all following requests.
+   * </pre>
+   *
+   * <code>bytes audio = 2;</code>
+   *
+   * @return The audio.
+   */
+  com.google.protobuf.ByteString getAudio();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateAgentRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateAgentRequest.java
new file mode 100644
index 000000000..49e2bf107
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateAgentRequest.java
@@ -0,0 +1,959 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Agents.CreateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.CreateAgent].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest}
+ */
+public final class CreateAgentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest)
+    CreateAgentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use CreateAgentRequest.newBuilder() to construct.
+  private CreateAgentRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private CreateAgentRequest() {
+    parent_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new CreateAgentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private CreateAgentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 18:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder subBuilder = null;
+              if (agent_ != null) {
+                subBuilder = agent_.toBuilder();
+              }
+              agent_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Agent.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(agent_);
+                agent_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateAgentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateAgentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The location to create a agent for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The location to create a agent for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int AGENT_FIELD_NUMBER = 2;
+  private com.google.cloud.dialogflow.cx.v3beta1.Agent agent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the agent field is set.
+   */
+  @java.lang.Override
+  public boolean hasAgent() {
+    return agent_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The agent.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Agent getAgent() {
+    return agent_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.Agent.getDefaultInstance()
+        : agent_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.AgentOrBuilder getAgentOrBuilder() {
+    return getAgent();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getParentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
+    }
+    if (agent_ != null) {
+      output.writeMessage(2, getAgent());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getParentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
+    }
+    if (agent_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getAgent());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest) obj;
+
+    if (!getParent().equals(other.getParent())) return false;
+    if (hasAgent() != other.hasAgent()) return false;
+    if (hasAgent()) {
+      if (!getAgent().equals(other.getAgent())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    if (hasAgent()) {
+      hash = (37 * hash) + AGENT_FIELD_NUMBER;
+      hash = (53 * hash) + getAgent().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Agents.CreateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.CreateAgent].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateAgentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateAgentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      if (agentBuilder_ == null) {
+        agent_ = null;
+      } else {
+        agent_ = null;
+        agentBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateAgentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest(this);
+      result.parent_ = parent_;
+      if (agentBuilder_ == null) {
+        result.agent_ = agent_;
+      } else {
+        result.agent_ = agentBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest.getDefaultInstance())
+        return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (other.hasAgent()) {
+        mergeAgent(other.getAgent());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The location to create a agent for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The location to create a agent for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The location to create a agent for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The location to create a agent for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The location to create a agent for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Agent agent_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Agent,
+            com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.AgentOrBuilder>
+        agentBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the agent field is set.
+     */
+    public boolean hasAgent() {
+      return agentBuilder_ != null || agent_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The agent.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Agent getAgent() {
+      if (agentBuilder_ == null) {
+        return agent_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Agent.getDefaultInstance()
+            : agent_;
+      } else {
+        return agentBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setAgent(com.google.cloud.dialogflow.cx.v3beta1.Agent value) {
+      if (agentBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        agent_ = value;
+        onChanged();
+      } else {
+        agentBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setAgent(com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder builderForValue) {
+      if (agentBuilder_ == null) {
+        agent_ = builderForValue.build();
+        onChanged();
+      } else {
+        agentBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeAgent(com.google.cloud.dialogflow.cx.v3beta1.Agent value) {
+      if (agentBuilder_ == null) {
+        if (agent_ != null) {
+          agent_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Agent.newBuilder(agent_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          agent_ = value;
+        }
+        onChanged();
+      } else {
+        agentBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearAgent() {
+      if (agentBuilder_ == null) {
+        agent_ = null;
+        onChanged();
+      } else {
+        agent_ = null;
+        agentBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder getAgentBuilder() {
+
+      onChanged();
+      return getAgentFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.AgentOrBuilder getAgentOrBuilder() {
+      if (agentBuilder_ != null) {
+        return agentBuilder_.getMessageOrBuilder();
+      } else {
+        return agent_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Agent.getDefaultInstance()
+            : agent_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Agent,
+            com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.AgentOrBuilder>
+        getAgentFieldBuilder() {
+      if (agentBuilder_ == null) {
+        agentBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Agent,
+                com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.AgentOrBuilder>(
+                getAgent(), getParentForChildren(), isClean());
+        agent_ = null;
+      }
+      return agentBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<CreateAgentRequest> PARSER =
+      new com.google.protobuf.AbstractParser<CreateAgentRequest>() {
+        @java.lang.Override
+        public CreateAgentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new CreateAgentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<CreateAgentRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<CreateAgentRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateAgentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateAgentRequestOrBuilder.java
new file mode 100644
index 000000000..c9eaf7fbf
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateAgentRequestOrBuilder.java
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface CreateAgentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.CreateAgentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The location to create a agent for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The location to create a agent for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the agent field is set.
+   */
+  boolean hasAgent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The agent.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Agent getAgent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.AgentOrBuilder getAgentOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateEntityTypeRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateEntityTypeRequest.java
new file mode 100644
index 000000000..ef03e8132
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateEntityTypeRequest.java
@@ -0,0 +1,1202 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [EntityTypes.CreateEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.CreateEntityType].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest}
+ */
+public final class CreateEntityTypeRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest)
+    CreateEntityTypeRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use CreateEntityTypeRequest.newBuilder() to construct.
+  private CreateEntityTypeRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private CreateEntityTypeRequest() {
+    parent_ = "";
+    languageCode_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new CreateEntityTypeRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private CreateEntityTypeRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 18:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder subBuilder = null;
+              if (entityType_ != null) {
+                subBuilder = entityType_.toBuilder();
+              }
+              entityType_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.EntityType.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(entityType_);
+                entityType_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              languageCode_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateEntityTypeRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateEntityTypeRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to create a entity type for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to create a entity type for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int ENTITY_TYPE_FIELD_NUMBER = 2;
+  private com.google.cloud.dialogflow.cx.v3beta1.EntityType entityType_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The entity type to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the entityType field is set.
+   */
+  @java.lang.Override
+  public boolean hasEntityType() {
+    return entityType_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The entity type to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The entityType.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.EntityType getEntityType() {
+    return entityType_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.EntityType.getDefaultInstance()
+        : entityType_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The entity type to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder getEntityTypeOrBuilder() {
+    return getEntityType();
+  }
+
+  public static final int LANGUAGE_CODE_FIELD_NUMBER = 3;
+  private volatile java.lang.Object languageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `entity_type`:
+   * *   `EntityType.entities.value`
+   * *   `EntityType.entities.synonyms`
+   * *   `EntityType.excluded_phrases.value`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The languageCode.
+   */
+  @java.lang.Override
+  public java.lang.String getLanguageCode() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      languageCode_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `entity_type`:
+   * *   `EntityType.entities.value`
+   * *   `EntityType.entities.synonyms`
+   * *   `EntityType.excluded_phrases.value`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getLanguageCodeBytes() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      languageCode_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getParentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
+    }
+    if (entityType_ != null) {
+      output.writeMessage(2, getEntityType());
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, languageCode_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getParentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
+    }
+    if (entityType_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getEntityType());
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, languageCode_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest) obj;
+
+    if (!getParent().equals(other.getParent())) return false;
+    if (hasEntityType() != other.hasEntityType()) return false;
+    if (hasEntityType()) {
+      if (!getEntityType().equals(other.getEntityType())) return false;
+    }
+    if (!getLanguageCode().equals(other.getLanguageCode())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    if (hasEntityType()) {
+      hash = (37 * hash) + ENTITY_TYPE_FIELD_NUMBER;
+      hash = (53 * hash) + getEntityType().hashCode();
+    }
+    hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
+    hash = (53 * hash) + getLanguageCode().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [EntityTypes.CreateEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.CreateEntityType].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateEntityTypeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateEntityTypeRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      if (entityTypeBuilder_ == null) {
+        entityType_ = null;
+      } else {
+        entityType_ = null;
+        entityTypeBuilder_ = null;
+      }
+      languageCode_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateEntityTypeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest(this);
+      result.parent_ = parent_;
+      if (entityTypeBuilder_ == null) {
+        result.entityType_ = entityType_;
+      } else {
+        result.entityType_ = entityTypeBuilder_.build();
+      }
+      result.languageCode_ = languageCode_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest.getDefaultInstance())
+        return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (other.hasEntityType()) {
+        mergeEntityType(other.getEntityType());
+      }
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create a entity type for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create a entity type for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create a entity type for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create a entity type for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create a entity type for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.EntityType entityType_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder>
+        entityTypeBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the entityType field is set.
+     */
+    public boolean hasEntityType() {
+      return entityTypeBuilder_ != null || entityType_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The entityType.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType getEntityType() {
+      if (entityTypeBuilder_ == null) {
+        return entityType_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.EntityType.getDefaultInstance()
+            : entityType_;
+      } else {
+        return entityTypeBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setEntityType(com.google.cloud.dialogflow.cx.v3beta1.EntityType value) {
+      if (entityTypeBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        entityType_ = value;
+        onChanged();
+      } else {
+        entityTypeBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder builderForValue) {
+      if (entityTypeBuilder_ == null) {
+        entityType_ = builderForValue.build();
+        onChanged();
+      } else {
+        entityTypeBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeEntityType(com.google.cloud.dialogflow.cx.v3beta1.EntityType value) {
+      if (entityTypeBuilder_ == null) {
+        if (entityType_ != null) {
+          entityType_ =
+              com.google.cloud.dialogflow.cx.v3beta1.EntityType.newBuilder(entityType_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          entityType_ = value;
+        }
+        onChanged();
+      } else {
+        entityTypeBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearEntityType() {
+      if (entityTypeBuilder_ == null) {
+        entityType_ = null;
+        onChanged();
+      } else {
+        entityType_ = null;
+        entityTypeBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder getEntityTypeBuilder() {
+
+      onChanged();
+      return getEntityTypeFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder getEntityTypeOrBuilder() {
+      if (entityTypeBuilder_ != null) {
+        return entityTypeBuilder_.getMessageOrBuilder();
+      } else {
+        return entityType_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.EntityType.getDefaultInstance()
+            : entityType_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder>
+        getEntityTypeFieldBuilder() {
+      if (entityTypeBuilder_ == null) {
+        entityTypeBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.EntityType,
+                com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder>(
+                getEntityType(), getParentForChildren(), isClean());
+        entityType_ = null;
+      }
+      return entityTypeBuilder_;
+    }
+
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `entity_type`:
+     * *   `EntityType.entities.value`
+     * *   `EntityType.entities.synonyms`
+     * *   `EntityType.excluded_phrases.value`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `entity_type`:
+     * *   `EntityType.entities.value`
+     * *   `EntityType.entities.synonyms`
+     * *   `EntityType.excluded_phrases.value`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `entity_type`:
+     * *   `EntityType.entities.value`
+     * *   `EntityType.entities.synonyms`
+     * *   `EntityType.excluded_phrases.value`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `entity_type`:
+     * *   `EntityType.entities.value`
+     * *   `EntityType.entities.synonyms`
+     * *   `EntityType.excluded_phrases.value`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `entity_type`:
+     * *   `EntityType.entities.value`
+     * *   `EntityType.entities.synonyms`
+     * *   `EntityType.excluded_phrases.value`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<CreateEntityTypeRequest> PARSER =
+      new com.google.protobuf.AbstractParser<CreateEntityTypeRequest>() {
+        @java.lang.Override
+        public CreateEntityTypeRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new CreateEntityTypeRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<CreateEntityTypeRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<CreateEntityTypeRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateEntityTypeRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateEntityTypeRequestOrBuilder.java
new file mode 100644
index 000000000..807a308d1
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateEntityTypeRequestOrBuilder.java
@@ -0,0 +1,138 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface CreateEntityTypeRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.CreateEntityTypeRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to create a entity type for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to create a entity type for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The entity type to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the entityType field is set.
+   */
+  boolean hasEntityType();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The entity type to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The entityType.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.EntityType getEntityType();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The entity type to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder getEntityTypeOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `entity_type`:
+   * *   `EntityType.entities.value`
+   * *   `EntityType.entities.synonyms`
+   * *   `EntityType.excluded_phrases.value`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `entity_type`:
+   * *   `EntityType.entities.value`
+   * *   `EntityType.entities.synonyms`
+   * *   `EntityType.excluded_phrases.value`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateEnvironmentRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateEnvironmentRequest.java
new file mode 100644
index 000000000..369455755
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateEnvironmentRequest.java
@@ -0,0 +1,968 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/environment.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Environments.CreateEnvironment][google.cloud.dialogflow.cx.v3beta1.Environments.CreateEnvironment].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest}
+ */
+public final class CreateEnvironmentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest)
+    CreateEnvironmentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use CreateEnvironmentRequest.newBuilder() to construct.
+  private CreateEnvironmentRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private CreateEnvironmentRequest() {
+    parent_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new CreateEnvironmentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private CreateEnvironmentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 18:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder subBuilder = null;
+              if (environment_ != null) {
+                subBuilder = environment_.toBuilder();
+              }
+              environment_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Environment.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(environment_);
+                environment_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateEnvironmentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateEnvironmentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to create an [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to create an [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int ENVIRONMENT_FIELD_NUMBER = 2;
+  private com.google.cloud.dialogflow.cx.v3beta1.Environment environment_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The environment to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the environment field is set.
+   */
+  @java.lang.Override
+  public boolean hasEnvironment() {
+    return environment_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The environment to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The environment.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Environment getEnvironment() {
+    return environment_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.Environment.getDefaultInstance()
+        : environment_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The environment to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder getEnvironmentOrBuilder() {
+    return getEnvironment();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getParentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
+    }
+    if (environment_ != null) {
+      output.writeMessage(2, getEnvironment());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getParentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
+    }
+    if (environment_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getEnvironment());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest) obj;
+
+    if (!getParent().equals(other.getParent())) return false;
+    if (hasEnvironment() != other.hasEnvironment()) return false;
+    if (hasEnvironment()) {
+      if (!getEnvironment().equals(other.getEnvironment())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    if (hasEnvironment()) {
+      hash = (37 * hash) + ENVIRONMENT_FIELD_NUMBER;
+      hash = (53 * hash) + getEnvironment().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Environments.CreateEnvironment][google.cloud.dialogflow.cx.v3beta1.Environments.CreateEnvironment].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateEnvironmentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateEnvironmentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      if (environmentBuilder_ == null) {
+        environment_ = null;
+      } else {
+        environment_ = null;
+        environmentBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateEnvironmentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest(this);
+      result.parent_ = parent_;
+      if (environmentBuilder_ == null) {
+        result.environment_ = environment_;
+      } else {
+        result.environment_ = environmentBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest.getDefaultInstance())
+        return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (other.hasEnvironment()) {
+        mergeEnvironment(other.getEnvironment());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to create an [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to create an [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to create an [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to create an [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to create an [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Environment environment_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Environment,
+            com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder>
+        environmentBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The environment to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the environment field is set.
+     */
+    public boolean hasEnvironment() {
+      return environmentBuilder_ != null || environment_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The environment to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The environment.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Environment getEnvironment() {
+      if (environmentBuilder_ == null) {
+        return environment_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Environment.getDefaultInstance()
+            : environment_;
+      } else {
+        return environmentBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The environment to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setEnvironment(com.google.cloud.dialogflow.cx.v3beta1.Environment value) {
+      if (environmentBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        environment_ = value;
+        onChanged();
+      } else {
+        environmentBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The environment to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setEnvironment(
+        com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder builderForValue) {
+      if (environmentBuilder_ == null) {
+        environment_ = builderForValue.build();
+        onChanged();
+      } else {
+        environmentBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The environment to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeEnvironment(com.google.cloud.dialogflow.cx.v3beta1.Environment value) {
+      if (environmentBuilder_ == null) {
+        if (environment_ != null) {
+          environment_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Environment.newBuilder(environment_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          environment_ = value;
+        }
+        onChanged();
+      } else {
+        environmentBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The environment to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearEnvironment() {
+      if (environmentBuilder_ == null) {
+        environment_ = null;
+        onChanged();
+      } else {
+        environment_ = null;
+        environmentBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The environment to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder getEnvironmentBuilder() {
+
+      onChanged();
+      return getEnvironmentFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The environment to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder getEnvironmentOrBuilder() {
+      if (environmentBuilder_ != null) {
+        return environmentBuilder_.getMessageOrBuilder();
+      } else {
+        return environment_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Environment.getDefaultInstance()
+            : environment_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The environment to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Environment,
+            com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder>
+        getEnvironmentFieldBuilder() {
+      if (environmentBuilder_ == null) {
+        environmentBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Environment,
+                com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder>(
+                getEnvironment(), getParentForChildren(), isClean());
+        environment_ = null;
+      }
+      return environmentBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<CreateEnvironmentRequest> PARSER =
+      new com.google.protobuf.AbstractParser<CreateEnvironmentRequest>() {
+        @java.lang.Override
+        public CreateEnvironmentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new CreateEnvironmentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<CreateEnvironmentRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<CreateEnvironmentRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateEnvironmentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateEnvironmentRequestOrBuilder.java
new file mode 100644
index 000000000..837a3a267
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateEnvironmentRequestOrBuilder.java
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/environment.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface CreateEnvironmentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.CreateEnvironmentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to create an [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to create an [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The environment to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the environment field is set.
+   */
+  boolean hasEnvironment();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The environment to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The environment.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Environment getEnvironment();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The environment to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder getEnvironmentOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateFlowRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateFlowRequest.java
new file mode 100644
index 000000000..ca560291e
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateFlowRequest.java
@@ -0,0 +1,1185 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/flow.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Flows.CreateFlow][google.cloud.dialogflow.cx.v3beta1.Flows.CreateFlow].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest}
+ */
+public final class CreateFlowRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest)
+    CreateFlowRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use CreateFlowRequest.newBuilder() to construct.
+  private CreateFlowRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private CreateFlowRequest() {
+    parent_ = "";
+    languageCode_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new CreateFlowRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private CreateFlowRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 18:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder subBuilder = null;
+              if (flow_ != null) {
+                subBuilder = flow_.toBuilder();
+              }
+              flow_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Flow.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(flow_);
+                flow_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              languageCode_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateFlowRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateFlowRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to create a flow for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to create a flow for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int FLOW_FIELD_NUMBER = 2;
+  private com.google.cloud.dialogflow.cx.v3beta1.Flow flow_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the flow field is set.
+   */
+  @java.lang.Override
+  public boolean hasFlow() {
+    return flow_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The flow.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Flow getFlow() {
+    return flow_ == null ? com.google.cloud.dialogflow.cx.v3beta1.Flow.getDefaultInstance() : flow_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder getFlowOrBuilder() {
+    return getFlow();
+  }
+
+  public static final int LANGUAGE_CODE_FIELD_NUMBER = 3;
+  private volatile java.lang.Object languageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `flow`:
+   * *  `Flow.event_handlers.trigger_fulfillment.messages`
+   * *  `Flow.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The languageCode.
+   */
+  @java.lang.Override
+  public java.lang.String getLanguageCode() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      languageCode_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `flow`:
+   * *  `Flow.event_handlers.trigger_fulfillment.messages`
+   * *  `Flow.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getLanguageCodeBytes() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      languageCode_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getParentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
+    }
+    if (flow_ != null) {
+      output.writeMessage(2, getFlow());
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, languageCode_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getParentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
+    }
+    if (flow_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getFlow());
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, languageCode_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest) obj;
+
+    if (!getParent().equals(other.getParent())) return false;
+    if (hasFlow() != other.hasFlow()) return false;
+    if (hasFlow()) {
+      if (!getFlow().equals(other.getFlow())) return false;
+    }
+    if (!getLanguageCode().equals(other.getLanguageCode())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    if (hasFlow()) {
+      hash = (37 * hash) + FLOW_FIELD_NUMBER;
+      hash = (53 * hash) + getFlow().hashCode();
+    }
+    hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
+    hash = (53 * hash) + getLanguageCode().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Flows.CreateFlow][google.cloud.dialogflow.cx.v3beta1.Flows.CreateFlow].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateFlowRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateFlowRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      if (flowBuilder_ == null) {
+        flow_ = null;
+      } else {
+        flow_ = null;
+        flowBuilder_ = null;
+      }
+      languageCode_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateFlowRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest(this);
+      result.parent_ = parent_;
+      if (flowBuilder_ == null) {
+        result.flow_ = flow_;
+      } else {
+        result.flow_ = flowBuilder_.build();
+      }
+      result.languageCode_ = languageCode_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest.getDefaultInstance())
+        return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (other.hasFlow()) {
+        mergeFlow(other.getFlow());
+      }
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create a flow for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create a flow for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create a flow for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create a flow for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create a flow for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Flow flow_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Flow,
+            com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder>
+        flowBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the flow field is set.
+     */
+    public boolean hasFlow() {
+      return flowBuilder_ != null || flow_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The flow.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Flow getFlow() {
+      if (flowBuilder_ == null) {
+        return flow_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Flow.getDefaultInstance()
+            : flow_;
+      } else {
+        return flowBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setFlow(com.google.cloud.dialogflow.cx.v3beta1.Flow value) {
+      if (flowBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        flow_ = value;
+        onChanged();
+      } else {
+        flowBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setFlow(com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder builderForValue) {
+      if (flowBuilder_ == null) {
+        flow_ = builderForValue.build();
+        onChanged();
+      } else {
+        flowBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeFlow(com.google.cloud.dialogflow.cx.v3beta1.Flow value) {
+      if (flowBuilder_ == null) {
+        if (flow_ != null) {
+          flow_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Flow.newBuilder(flow_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          flow_ = value;
+        }
+        onChanged();
+      } else {
+        flowBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearFlow() {
+      if (flowBuilder_ == null) {
+        flow_ = null;
+        onChanged();
+      } else {
+        flow_ = null;
+        flowBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder getFlowBuilder() {
+
+      onChanged();
+      return getFlowFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder getFlowOrBuilder() {
+      if (flowBuilder_ != null) {
+        return flowBuilder_.getMessageOrBuilder();
+      } else {
+        return flow_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Flow.getDefaultInstance()
+            : flow_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Flow,
+            com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder>
+        getFlowFieldBuilder() {
+      if (flowBuilder_ == null) {
+        flowBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Flow,
+                com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder>(
+                getFlow(), getParentForChildren(), isClean());
+        flow_ = null;
+      }
+      return flowBuilder_;
+    }
+
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `flow`:
+     * *  `Flow.event_handlers.trigger_fulfillment.messages`
+     * *  `Flow.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `flow`:
+     * *  `Flow.event_handlers.trigger_fulfillment.messages`
+     * *  `Flow.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `flow`:
+     * *  `Flow.event_handlers.trigger_fulfillment.messages`
+     * *  `Flow.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `flow`:
+     * *  `Flow.event_handlers.trigger_fulfillment.messages`
+     * *  `Flow.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `flow`:
+     * *  `Flow.event_handlers.trigger_fulfillment.messages`
+     * *  `Flow.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<CreateFlowRequest> PARSER =
+      new com.google.protobuf.AbstractParser<CreateFlowRequest>() {
+        @java.lang.Override
+        public CreateFlowRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new CreateFlowRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<CreateFlowRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<CreateFlowRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateFlowRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateFlowRequestOrBuilder.java
new file mode 100644
index 000000000..46a2b3017
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateFlowRequestOrBuilder.java
@@ -0,0 +1,136 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/flow.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface CreateFlowRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.CreateFlowRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to create a flow for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to create a flow for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the flow field is set.
+   */
+  boolean hasFlow();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The flow.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Flow getFlow();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder getFlowOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `flow`:
+   * *  `Flow.event_handlers.trigger_fulfillment.messages`
+   * *  `Flow.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `flow`:
+   * *  `Flow.event_handlers.trigger_fulfillment.messages`
+   * *  `Flow.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateIntentRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateIntentRequest.java
new file mode 100644
index 000000000..bd703e6c9
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateIntentRequest.java
@@ -0,0 +1,1181 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/intent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Intents.CreateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.CreateIntent].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest}
+ */
+public final class CreateIntentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest)
+    CreateIntentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use CreateIntentRequest.newBuilder() to construct.
+  private CreateIntentRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private CreateIntentRequest() {
+    parent_ = "";
+    languageCode_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new CreateIntentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private CreateIntentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 18:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder subBuilder = null;
+              if (intent_ != null) {
+                subBuilder = intent_.toBuilder();
+              }
+              intent_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Intent.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(intent_);
+                intent_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              languageCode_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateIntentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateIntentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to create an intent for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to create an intent for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int INTENT_FIELD_NUMBER = 2;
+  private com.google.cloud.dialogflow.cx.v3beta1.Intent intent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The intent to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the intent field is set.
+   */
+  @java.lang.Override
+  public boolean hasIntent() {
+    return intent_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The intent to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The intent.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Intent getIntent() {
+    return intent_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.Intent.getDefaultInstance()
+        : intent_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The intent to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder getIntentOrBuilder() {
+    return getIntent();
+  }
+
+  public static final int LANGUAGE_CODE_FIELD_NUMBER = 3;
+  private volatile java.lang.Object languageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `intent`:
+   * *   `Intent.training_phrases.parts.text`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The languageCode.
+   */
+  @java.lang.Override
+  public java.lang.String getLanguageCode() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      languageCode_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `intent`:
+   * *   `Intent.training_phrases.parts.text`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getLanguageCodeBytes() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      languageCode_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getParentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
+    }
+    if (intent_ != null) {
+      output.writeMessage(2, getIntent());
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, languageCode_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getParentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
+    }
+    if (intent_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getIntent());
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, languageCode_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest) obj;
+
+    if (!getParent().equals(other.getParent())) return false;
+    if (hasIntent() != other.hasIntent()) return false;
+    if (hasIntent()) {
+      if (!getIntent().equals(other.getIntent())) return false;
+    }
+    if (!getLanguageCode().equals(other.getLanguageCode())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    if (hasIntent()) {
+      hash = (37 * hash) + INTENT_FIELD_NUMBER;
+      hash = (53 * hash) + getIntent().hashCode();
+    }
+    hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
+    hash = (53 * hash) + getLanguageCode().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Intents.CreateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.CreateIntent].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateIntentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateIntentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      if (intentBuilder_ == null) {
+        intent_ = null;
+      } else {
+        intent_ = null;
+        intentBuilder_ = null;
+      }
+      languageCode_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateIntentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest(this);
+      result.parent_ = parent_;
+      if (intentBuilder_ == null) {
+        result.intent_ = intent_;
+      } else {
+        result.intent_ = intentBuilder_.build();
+      }
+      result.languageCode_ = languageCode_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest.getDefaultInstance())
+        return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (other.hasIntent()) {
+        mergeIntent(other.getIntent());
+      }
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create an intent for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create an intent for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create an intent for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create an intent for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create an intent for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Intent intent_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Intent,
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder>
+        intentBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The intent to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the intent field is set.
+     */
+    public boolean hasIntent() {
+      return intentBuilder_ != null || intent_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The intent to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The intent.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent getIntent() {
+      if (intentBuilder_ == null) {
+        return intent_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Intent.getDefaultInstance()
+            : intent_;
+      } else {
+        return intentBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The intent to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setIntent(com.google.cloud.dialogflow.cx.v3beta1.Intent value) {
+      if (intentBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        intent_ = value;
+        onChanged();
+      } else {
+        intentBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The intent to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder builderForValue) {
+      if (intentBuilder_ == null) {
+        intent_ = builderForValue.build();
+        onChanged();
+      } else {
+        intentBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The intent to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeIntent(com.google.cloud.dialogflow.cx.v3beta1.Intent value) {
+      if (intentBuilder_ == null) {
+        if (intent_ != null) {
+          intent_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.newBuilder(intent_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          intent_ = value;
+        }
+        onChanged();
+      } else {
+        intentBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The intent to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearIntent() {
+      if (intentBuilder_ == null) {
+        intent_ = null;
+        onChanged();
+      } else {
+        intent_ = null;
+        intentBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The intent to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder getIntentBuilder() {
+
+      onChanged();
+      return getIntentFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The intent to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder getIntentOrBuilder() {
+      if (intentBuilder_ != null) {
+        return intentBuilder_.getMessageOrBuilder();
+      } else {
+        return intent_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Intent.getDefaultInstance()
+            : intent_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The intent to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Intent,
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder>
+        getIntentFieldBuilder() {
+      if (intentBuilder_ == null) {
+        intentBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Intent,
+                com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder>(
+                getIntent(), getParentForChildren(), isClean());
+        intent_ = null;
+      }
+      return intentBuilder_;
+    }
+
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `intent`:
+     * *   `Intent.training_phrases.parts.text`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `intent`:
+     * *   `Intent.training_phrases.parts.text`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `intent`:
+     * *   `Intent.training_phrases.parts.text`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `intent`:
+     * *   `Intent.training_phrases.parts.text`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `intent`:
+     * *   `Intent.training_phrases.parts.text`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<CreateIntentRequest> PARSER =
+      new com.google.protobuf.AbstractParser<CreateIntentRequest>() {
+        @java.lang.Override
+        public CreateIntentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new CreateIntentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<CreateIntentRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<CreateIntentRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateIntentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateIntentRequestOrBuilder.java
new file mode 100644
index 000000000..aafaf2995
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateIntentRequestOrBuilder.java
@@ -0,0 +1,134 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/intent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface CreateIntentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.CreateIntentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to create an intent for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to create an intent for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The intent to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the intent field is set.
+   */
+  boolean hasIntent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The intent to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The intent.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Intent getIntent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The intent to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder getIntentOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `intent`:
+   * *   `Intent.training_phrases.parts.text`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `intent`:
+   * *   `Intent.training_phrases.parts.text`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreatePageRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreatePageRequest.java
new file mode 100644
index 000000000..fd39ad488
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreatePageRequest.java
@@ -0,0 +1,1220 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/page.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Pages.CreatePage][google.cloud.dialogflow.cx.v3beta1.Pages.CreatePage].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.CreatePageRequest}
+ */
+public final class CreatePageRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.CreatePageRequest)
+    CreatePageRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use CreatePageRequest.newBuilder() to construct.
+  private CreatePageRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private CreatePageRequest() {
+    parent_ = "";
+    languageCode_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new CreatePageRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private CreatePageRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 18:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Page.Builder subBuilder = null;
+              if (page_ != null) {
+                subBuilder = page_.toBuilder();
+              }
+              page_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Page.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(page_);
+                page_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              languageCode_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_CreatePageRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_CreatePageRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to create a page for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to create a page for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int PAGE_FIELD_NUMBER = 2;
+  private com.google.cloud.dialogflow.cx.v3beta1.Page page_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The page to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Page page = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the page field is set.
+   */
+  @java.lang.Override
+  public boolean hasPage() {
+    return page_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The page to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Page page = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The page.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Page getPage() {
+    return page_ == null ? com.google.cloud.dialogflow.cx.v3beta1.Page.getDefaultInstance() : page_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The page to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Page page = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder getPageOrBuilder() {
+    return getPage();
+  }
+
+  public static final int LANGUAGE_CODE_FIELD_NUMBER = 3;
+  private volatile java.lang.Object languageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `page`:
+   * *  `Page.entry_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+   * *  `Page.transition_route.trigger_fulfillment.messages`
+   * *
+   * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The languageCode.
+   */
+  @java.lang.Override
+  public java.lang.String getLanguageCode() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      languageCode_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `page`:
+   * *  `Page.entry_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+   * *  `Page.transition_route.trigger_fulfillment.messages`
+   * *
+   * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getLanguageCodeBytes() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      languageCode_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getParentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
+    }
+    if (page_ != null) {
+      output.writeMessage(2, getPage());
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, languageCode_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getParentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
+    }
+    if (page_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getPage());
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, languageCode_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest) obj;
+
+    if (!getParent().equals(other.getParent())) return false;
+    if (hasPage() != other.hasPage()) return false;
+    if (hasPage()) {
+      if (!getPage().equals(other.getPage())) return false;
+    }
+    if (!getLanguageCode().equals(other.getLanguageCode())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    if (hasPage()) {
+      hash = (37 * hash) + PAGE_FIELD_NUMBER;
+      hash = (53 * hash) + getPage().hashCode();
+    }
+    hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
+    hash = (53 * hash) + getLanguageCode().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Pages.CreatePage][google.cloud.dialogflow.cx.v3beta1.Pages.CreatePage].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.CreatePageRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.CreatePageRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreatePageRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreatePageRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      if (pageBuilder_ == null) {
+        page_ = null;
+      } else {
+        page_ = null;
+        pageBuilder_ = null;
+      }
+      languageCode_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreatePageRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest(this);
+      result.parent_ = parent_;
+      if (pageBuilder_ == null) {
+        result.page_ = page_;
+      } else {
+        result.page_ = pageBuilder_.build();
+      }
+      result.languageCode_ = languageCode_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest.getDefaultInstance())
+        return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (other.hasPage()) {
+        mergePage(other.getPage());
+      }
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to create a page for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to create a page for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to create a page for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to create a page for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to create a page for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Page page_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Page,
+            com.google.cloud.dialogflow.cx.v3beta1.Page.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder>
+        pageBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The page to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Page page = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the page field is set.
+     */
+    public boolean hasPage() {
+      return pageBuilder_ != null || page_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The page to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Page page = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The page.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Page getPage() {
+      if (pageBuilder_ == null) {
+        return page_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Page.getDefaultInstance()
+            : page_;
+      } else {
+        return pageBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The page to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Page page = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setPage(com.google.cloud.dialogflow.cx.v3beta1.Page value) {
+      if (pageBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        page_ = value;
+        onChanged();
+      } else {
+        pageBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The page to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Page page = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setPage(com.google.cloud.dialogflow.cx.v3beta1.Page.Builder builderForValue) {
+      if (pageBuilder_ == null) {
+        page_ = builderForValue.build();
+        onChanged();
+      } else {
+        pageBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The page to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Page page = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergePage(com.google.cloud.dialogflow.cx.v3beta1.Page value) {
+      if (pageBuilder_ == null) {
+        if (page_ != null) {
+          page_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Page.newBuilder(page_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          page_ = value;
+        }
+        onChanged();
+      } else {
+        pageBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The page to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Page page = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearPage() {
+      if (pageBuilder_ == null) {
+        page_ = null;
+        onChanged();
+      } else {
+        page_ = null;
+        pageBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The page to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Page page = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Page.Builder getPageBuilder() {
+
+      onChanged();
+      return getPageFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The page to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Page page = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder getPageOrBuilder() {
+      if (pageBuilder_ != null) {
+        return pageBuilder_.getMessageOrBuilder();
+      } else {
+        return page_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Page.getDefaultInstance()
+            : page_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The page to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Page page = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Page,
+            com.google.cloud.dialogflow.cx.v3beta1.Page.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder>
+        getPageFieldBuilder() {
+      if (pageBuilder_ == null) {
+        pageBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Page,
+                com.google.cloud.dialogflow.cx.v3beta1.Page.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder>(
+                getPage(), getParentForChildren(), isClean());
+        page_ = null;
+      }
+      return pageBuilder_;
+    }
+
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `page`:
+     * *  `Page.entry_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+     * *  `Page.transition_route.trigger_fulfillment.messages`
+     * *
+     * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `page`:
+     * *  `Page.entry_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+     * *  `Page.transition_route.trigger_fulfillment.messages`
+     * *
+     * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `page`:
+     * *  `Page.entry_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+     * *  `Page.transition_route.trigger_fulfillment.messages`
+     * *
+     * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `page`:
+     * *  `Page.entry_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+     * *  `Page.transition_route.trigger_fulfillment.messages`
+     * *
+     * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `page`:
+     * *  `Page.entry_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+     * *  `Page.transition_route.trigger_fulfillment.messages`
+     * *
+     * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.CreatePageRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.CreatePageRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<CreatePageRequest> PARSER =
+      new com.google.protobuf.AbstractParser<CreatePageRequest>() {
+        @java.lang.Override
+        public CreatePageRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new CreatePageRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<CreatePageRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<CreatePageRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.CreatePageRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreatePageRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreatePageRequestOrBuilder.java
new file mode 100644
index 000000000..f6d3b3f67
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreatePageRequestOrBuilder.java
@@ -0,0 +1,146 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/page.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface CreatePageRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.CreatePageRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to create a page for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to create a page for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The page to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Page page = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the page field is set.
+   */
+  boolean hasPage();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The page to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Page page = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The page.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Page getPage();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The page to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Page page = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder getPageOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `page`:
+   * *  `Page.entry_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+   * *  `Page.transition_route.trigger_fulfillment.messages`
+   * *
+   * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `page`:
+   * *  `Page.entry_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+   * *  `Page.transition_route.trigger_fulfillment.messages`
+   * *
+   * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateSessionEntityTypeRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateSessionEntityTypeRequest.java
new file mode 100644
index 000000000..8abc93795
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateSessionEntityTypeRequest.java
@@ -0,0 +1,986 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [SessionEntityTypes.CreateSessionEntityType][google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes.CreateSessionEntityType].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest}
+ */
+public final class CreateSessionEntityTypeRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest)
+    CreateSessionEntityTypeRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use CreateSessionEntityTypeRequest.newBuilder() to construct.
+  private CreateSessionEntityTypeRequest(
+      com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private CreateSessionEntityTypeRequest() {
+    parent_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new CreateSessionEntityTypeRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private CreateSessionEntityTypeRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 18:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder subBuilder = null;
+              if (sessionEntityType_ != null) {
+                subBuilder = sessionEntityType_.toBuilder();
+              }
+              sessionEntityType_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(sessionEntityType_);
+                sessionEntityType_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateSessionEntityTypeRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateSessionEntityTypeRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The session to create a session entity type for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The session to create a session entity type for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int SESSION_ENTITY_TYPE_FIELD_NUMBER = 2;
+  private com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType sessionEntityType_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The session entity type to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the sessionEntityType field is set.
+   */
+  @java.lang.Override
+  public boolean hasSessionEntityType() {
+    return sessionEntityType_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The session entity type to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The sessionEntityType.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType getSessionEntityType() {
+    return sessionEntityType_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.getDefaultInstance()
+        : sessionEntityType_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The session entity type to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder
+      getSessionEntityTypeOrBuilder() {
+    return getSessionEntityType();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getParentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
+    }
+    if (sessionEntityType_ != null) {
+      output.writeMessage(2, getSessionEntityType());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getParentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
+    }
+    if (sessionEntityType_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getSessionEntityType());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest) obj;
+
+    if (!getParent().equals(other.getParent())) return false;
+    if (hasSessionEntityType() != other.hasSessionEntityType()) return false;
+    if (hasSessionEntityType()) {
+      if (!getSessionEntityType().equals(other.getSessionEntityType())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    if (hasSessionEntityType()) {
+      hash = (37 * hash) + SESSION_ENTITY_TYPE_FIELD_NUMBER;
+      hash = (53 * hash) + getSessionEntityType().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest
+      parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest
+      parseDelimitedFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [SessionEntityTypes.CreateSessionEntityType][google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes.CreateSessionEntityType].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateSessionEntityTypeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateSessionEntityTypeRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest.Builder.class);
+    }
+
+    // Construct using
+    // com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      if (sessionEntityTypeBuilder_ == null) {
+        sessionEntityType_ = null;
+      } else {
+        sessionEntityType_ = null;
+        sessionEntityTypeBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateSessionEntityTypeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest
+          .getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest(this);
+      result.parent_ = parent_;
+      if (sessionEntityTypeBuilder_ == null) {
+        result.sessionEntityType_ = sessionEntityType_;
+      } else {
+        result.sessionEntityType_ = sessionEntityTypeBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest) {
+        return mergeFrom(
+            (com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest
+              .getDefaultInstance()) return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (other.hasSessionEntityType()) {
+        mergeSessionEntityType(other.getSessionEntityType());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session to create a session entity type for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session to create a session entity type for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session to create a session entity type for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session to create a session entity type for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session to create a session entity type for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType sessionEntityType_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder>
+        sessionEntityTypeBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session entity type to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the sessionEntityType field is set.
+     */
+    public boolean hasSessionEntityType() {
+      return sessionEntityTypeBuilder_ != null || sessionEntityType_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session entity type to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The sessionEntityType.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType getSessionEntityType() {
+      if (sessionEntityTypeBuilder_ == null) {
+        return sessionEntityType_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.getDefaultInstance()
+            : sessionEntityType_;
+      } else {
+        return sessionEntityTypeBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session entity type to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setSessionEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType value) {
+      if (sessionEntityTypeBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        sessionEntityType_ = value;
+        onChanged();
+      } else {
+        sessionEntityTypeBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session entity type to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setSessionEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder builderForValue) {
+      if (sessionEntityTypeBuilder_ == null) {
+        sessionEntityType_ = builderForValue.build();
+        onChanged();
+      } else {
+        sessionEntityTypeBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session entity type to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeSessionEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType value) {
+      if (sessionEntityTypeBuilder_ == null) {
+        if (sessionEntityType_ != null) {
+          sessionEntityType_ =
+              com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.newBuilder(
+                      sessionEntityType_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          sessionEntityType_ = value;
+        }
+        onChanged();
+      } else {
+        sessionEntityTypeBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session entity type to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearSessionEntityType() {
+      if (sessionEntityTypeBuilder_ == null) {
+        sessionEntityType_ = null;
+        onChanged();
+      } else {
+        sessionEntityType_ = null;
+        sessionEntityTypeBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session entity type to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder
+        getSessionEntityTypeBuilder() {
+
+      onChanged();
+      return getSessionEntityTypeFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session entity type to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder
+        getSessionEntityTypeOrBuilder() {
+      if (sessionEntityTypeBuilder_ != null) {
+        return sessionEntityTypeBuilder_.getMessageOrBuilder();
+      } else {
+        return sessionEntityType_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.getDefaultInstance()
+            : sessionEntityType_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session entity type to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder>
+        getSessionEntityTypeFieldBuilder() {
+      if (sessionEntityTypeBuilder_ == null) {
+        sessionEntityTypeBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType,
+                com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder>(
+                getSessionEntityType(), getParentForChildren(), isClean());
+        sessionEntityType_ = null;
+      }
+      return sessionEntityTypeBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<CreateSessionEntityTypeRequest> PARSER =
+      new com.google.protobuf.AbstractParser<CreateSessionEntityTypeRequest>() {
+        @java.lang.Override
+        public CreateSessionEntityTypeRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new CreateSessionEntityTypeRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<CreateSessionEntityTypeRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<CreateSessionEntityTypeRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateSessionEntityTypeRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateSessionEntityTypeRequestOrBuilder.java
new file mode 100644
index 000000000..89883e2a9
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateSessionEntityTypeRequestOrBuilder.java
@@ -0,0 +1,99 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface CreateSessionEntityTypeRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.CreateSessionEntityTypeRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The session to create a session entity type for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The session to create a session entity type for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The session entity type to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the sessionEntityType field is set.
+   */
+  boolean hasSessionEntityType();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The session entity type to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The sessionEntityType.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType getSessionEntityType();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The session entity type to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder getSessionEntityTypeOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateTransitionRouteGroupRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateTransitionRouteGroupRequest.java
new file mode 100644
index 000000000..289f09e39
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateTransitionRouteGroupRequest.java
@@ -0,0 +1,1220 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [TransitionRouteGroups.CreateTransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.CreateTransitionRouteGroup].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest}
+ */
+public final class CreateTransitionRouteGroupRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest)
+    CreateTransitionRouteGroupRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use CreateTransitionRouteGroupRequest.newBuilder() to construct.
+  private CreateTransitionRouteGroupRequest(
+      com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private CreateTransitionRouteGroupRequest() {
+    parent_ = "";
+    languageCode_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new CreateTransitionRouteGroupRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private CreateTransitionRouteGroupRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 18:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder subBuilder = null;
+              if (transitionRouteGroup_ != null) {
+                subBuilder = transitionRouteGroup_.toBuilder();
+              }
+              transitionRouteGroup_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(transitionRouteGroup_);
+                transitionRouteGroup_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              languageCode_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateTransitionRouteGroupRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateTransitionRouteGroupRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to create an [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to create an [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int TRANSITION_ROUTE_GROUP_FIELD_NUMBER = 2;
+  private com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transitionRouteGroup_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The transition route group to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the transitionRouteGroup field is set.
+   */
+  @java.lang.Override
+  public boolean hasTransitionRouteGroup() {
+    return transitionRouteGroup_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The transition route group to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The transitionRouteGroup.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup getTransitionRouteGroup() {
+    return transitionRouteGroup_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.getDefaultInstance()
+        : transitionRouteGroup_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The transition route group to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupOrBuilder
+      getTransitionRouteGroupOrBuilder() {
+    return getTransitionRouteGroup();
+  }
+
+  public static final int LANGUAGE_CODE_FIELD_NUMBER = 3;
+  private volatile java.lang.Object languageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * The language to list transition route groups for. The field
+   * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+   * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The languageCode.
+   */
+  @java.lang.Override
+  public java.lang.String getLanguageCode() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      languageCode_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The language to list transition route groups for. The field
+   * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+   * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getLanguageCodeBytes() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      languageCode_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getParentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
+    }
+    if (transitionRouteGroup_ != null) {
+      output.writeMessage(2, getTransitionRouteGroup());
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, languageCode_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getParentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
+    }
+    if (transitionRouteGroup_ != null) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(2, getTransitionRouteGroup());
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, languageCode_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj
+        instanceof com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest) obj;
+
+    if (!getParent().equals(other.getParent())) return false;
+    if (hasTransitionRouteGroup() != other.hasTransitionRouteGroup()) return false;
+    if (hasTransitionRouteGroup()) {
+      if (!getTransitionRouteGroup().equals(other.getTransitionRouteGroup())) return false;
+    }
+    if (!getLanguageCode().equals(other.getLanguageCode())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    if (hasTransitionRouteGroup()) {
+      hash = (37 * hash) + TRANSITION_ROUTE_GROUP_FIELD_NUMBER;
+      hash = (53 * hash) + getTransitionRouteGroup().hashCode();
+    }
+    hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
+    hash = (53 * hash) + getLanguageCode().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest
+      parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest
+      parseDelimitedFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [TransitionRouteGroups.CreateTransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.CreateTransitionRouteGroup].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateTransitionRouteGroupRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateTransitionRouteGroupRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest.Builder
+                  .class);
+    }
+
+    // Construct using
+    // com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      if (transitionRouteGroupBuilder_ == null) {
+        transitionRouteGroup_ = null;
+      } else {
+        transitionRouteGroup_ = null;
+        transitionRouteGroupBuilder_ = null;
+      }
+      languageCode_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateTransitionRouteGroupRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest
+          .getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest result =
+          buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest(this);
+      result.parent_ = parent_;
+      if (transitionRouteGroupBuilder_ == null) {
+        result.transitionRouteGroup_ = transitionRouteGroup_;
+      } else {
+        result.transitionRouteGroup_ = transitionRouteGroupBuilder_.build();
+      }
+      result.languageCode_ = languageCode_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other
+          instanceof com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest) {
+        return mergeFrom(
+            (com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest
+              .getDefaultInstance()) return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (other.hasTransitionRouteGroup()) {
+        mergeTransitionRouteGroup(other.getTransitionRouteGroup());
+      }
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to create an [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to create an [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to create an [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to create an [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to create an [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transitionRouteGroup_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupOrBuilder>
+        transitionRouteGroupBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The transition route group to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the transitionRouteGroup field is set.
+     */
+    public boolean hasTransitionRouteGroup() {
+      return transitionRouteGroupBuilder_ != null || transitionRouteGroup_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The transition route group to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The transitionRouteGroup.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup getTransitionRouteGroup() {
+      if (transitionRouteGroupBuilder_ == null) {
+        return transitionRouteGroup_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.getDefaultInstance()
+            : transitionRouteGroup_;
+      } else {
+        return transitionRouteGroupBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The transition route group to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setTransitionRouteGroup(
+        com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup value) {
+      if (transitionRouteGroupBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        transitionRouteGroup_ = value;
+        onChanged();
+      } else {
+        transitionRouteGroupBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The transition route group to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setTransitionRouteGroup(
+        com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder builderForValue) {
+      if (transitionRouteGroupBuilder_ == null) {
+        transitionRouteGroup_ = builderForValue.build();
+        onChanged();
+      } else {
+        transitionRouteGroupBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The transition route group to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeTransitionRouteGroup(
+        com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup value) {
+      if (transitionRouteGroupBuilder_ == null) {
+        if (transitionRouteGroup_ != null) {
+          transitionRouteGroup_ =
+              com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.newBuilder(
+                      transitionRouteGroup_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          transitionRouteGroup_ = value;
+        }
+        onChanged();
+      } else {
+        transitionRouteGroupBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The transition route group to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearTransitionRouteGroup() {
+      if (transitionRouteGroupBuilder_ == null) {
+        transitionRouteGroup_ = null;
+        onChanged();
+      } else {
+        transitionRouteGroup_ = null;
+        transitionRouteGroupBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The transition route group to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder
+        getTransitionRouteGroupBuilder() {
+
+      onChanged();
+      return getTransitionRouteGroupFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The transition route group to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupOrBuilder
+        getTransitionRouteGroupOrBuilder() {
+      if (transitionRouteGroupBuilder_ != null) {
+        return transitionRouteGroupBuilder_.getMessageOrBuilder();
+      } else {
+        return transitionRouteGroup_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.getDefaultInstance()
+            : transitionRouteGroup_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The transition route group to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupOrBuilder>
+        getTransitionRouteGroupFieldBuilder() {
+      if (transitionRouteGroupBuilder_ == null) {
+        transitionRouteGroupBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup,
+                com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupOrBuilder>(
+                getTransitionRouteGroup(), getParentForChildren(), isClean());
+        transitionRouteGroup_ = null;
+      }
+      return transitionRouteGroupBuilder_;
+    }
+
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The language to list transition route groups for. The field
+     * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+     * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list transition route groups for. The field
+     * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+     * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list transition route groups for. The field
+     * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+     * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list transition route groups for. The field
+     * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+     * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list transition route groups for. The field
+     * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+     * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE =
+        new com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<CreateTransitionRouteGroupRequest> PARSER =
+      new com.google.protobuf.AbstractParser<CreateTransitionRouteGroupRequest>() {
+        @java.lang.Override
+        public CreateTransitionRouteGroupRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new CreateTransitionRouteGroupRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<CreateTransitionRouteGroupRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<CreateTransitionRouteGroupRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateTransitionRouteGroupRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateTransitionRouteGroupRequestOrBuilder.java
new file mode 100644
index 000000000..e9fa12e86
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateTransitionRouteGroupRequestOrBuilder.java
@@ -0,0 +1,139 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface CreateTransitionRouteGroupRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.CreateTransitionRouteGroupRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to create an [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to create an [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The transition route group to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the transitionRouteGroup field is set.
+   */
+  boolean hasTransitionRouteGroup();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The transition route group to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The transitionRouteGroup.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup getTransitionRouteGroup();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The transition route group to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupOrBuilder
+      getTransitionRouteGroupOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The language to list transition route groups for. The field
+   * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+   * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * The language to list transition route groups for. The field
+   * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+   * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateVersionOperationMetadata.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateVersionOperationMetadata.java
new file mode 100644
index 000000000..0afce8f84
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateVersionOperationMetadata.java
@@ -0,0 +1,665 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/version.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Metadata associated with the long running operation for
+ * [Versions.CreateVersion][google.cloud.dialogflow.cx.v3beta1.Versions.CreateVersion].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata}
+ */
+public final class CreateVersionOperationMetadata extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata)
+    CreateVersionOperationMetadataOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use CreateVersionOperationMetadata.newBuilder() to construct.
+  private CreateVersionOperationMetadata(
+      com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private CreateVersionOperationMetadata() {
+    version_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new CreateVersionOperationMetadata();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private CreateVersionOperationMetadata(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              version_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateVersionOperationMetadata_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateVersionOperationMetadata_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata.class,
+            com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata.Builder.class);
+  }
+
+  public static final int VERSION_FIELD_NUMBER = 1;
+  private volatile java.lang.Object version_;
+  /**
+   *
+   *
+   * <pre>
+   * Name of the created version.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+   * </pre>
+   *
+   * <code>string version = 1 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The version.
+   */
+  @java.lang.Override
+  public java.lang.String getVersion() {
+    java.lang.Object ref = version_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      version_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Name of the created version.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+   * </pre>
+   *
+   * <code>string version = 1 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for version.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getVersionBytes() {
+    java.lang.Object ref = version_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      version_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getVersionBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, version_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getVersionBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, version_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata other =
+        (com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata) obj;
+
+    if (!getVersion().equals(other.getVersion())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + VERSION_FIELD_NUMBER;
+    hash = (53 * hash) + getVersion().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata
+      parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata
+      parseDelimitedFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Metadata associated with the long running operation for
+   * [Versions.CreateVersion][google.cloud.dialogflow.cx.v3beta1.Versions.CreateVersion].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata)
+      com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadataOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateVersionOperationMetadata_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateVersionOperationMetadata_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata.class,
+              com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata.Builder.class);
+    }
+
+    // Construct using
+    // com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      version_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateVersionOperationMetadata_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata
+          .getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata build() {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata result =
+          new com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata(this);
+      result.version_ = version_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata) {
+        return mergeFrom(
+            (com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata
+              .getDefaultInstance()) return this;
+      if (!other.getVersion().isEmpty()) {
+        version_ = other.version_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object version_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Name of the created version.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+     * </pre>
+     *
+     * <code>string version = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The version.
+     */
+    public java.lang.String getVersion() {
+      java.lang.Object ref = version_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        version_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Name of the created version.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+     * </pre>
+     *
+     * <code>string version = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The bytes for version.
+     */
+    public com.google.protobuf.ByteString getVersionBytes() {
+      java.lang.Object ref = version_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        version_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Name of the created version.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+     * </pre>
+     *
+     * <code>string version = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The version to set.
+     * @return This builder for chaining.
+     */
+    public Builder setVersion(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      version_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Name of the created version.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+     * </pre>
+     *
+     * <code>string version = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearVersion() {
+
+      version_ = getDefaultInstance().getVersion();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Name of the created version.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+     * </pre>
+     *
+     * <code>string version = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The bytes for version to set.
+     * @return This builder for chaining.
+     */
+    public Builder setVersionBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      version_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<CreateVersionOperationMetadata> PARSER =
+      new com.google.protobuf.AbstractParser<CreateVersionOperationMetadata>() {
+        @java.lang.Override
+        public CreateVersionOperationMetadata parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new CreateVersionOperationMetadata(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<CreateVersionOperationMetadata> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<CreateVersionOperationMetadata> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateVersionOperationMetadataOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateVersionOperationMetadataOrBuilder.java
new file mode 100644
index 000000000..e383c9ae0
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateVersionOperationMetadataOrBuilder.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/version.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface CreateVersionOperationMetadataOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.CreateVersionOperationMetadata)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Name of the created version.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+   * </pre>
+   *
+   * <code>string version = 1 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The version.
+   */
+  java.lang.String getVersion();
+  /**
+   *
+   *
+   * <pre>
+   * Name of the created version.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+   * </pre>
+   *
+   * <code>string version = 1 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for version.
+   */
+  com.google.protobuf.ByteString getVersionBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateVersionRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateVersionRequest.java
new file mode 100644
index 000000000..605761c74
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateVersionRequest.java
@@ -0,0 +1,967 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/version.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Versions.CreateVersion][google.cloud.dialogflow.cx.v3beta1.Versions.CreateVersion].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest}
+ */
+public final class CreateVersionRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest)
+    CreateVersionRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use CreateVersionRequest.newBuilder() to construct.
+  private CreateVersionRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private CreateVersionRequest() {
+    parent_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new CreateVersionRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private CreateVersionRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 18:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Version.Builder subBuilder = null;
+              if (version_ != null) {
+                subBuilder = version_.toBuilder();
+              }
+              version_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Version.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(version_);
+                version_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateVersionRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateVersionRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to create an [Version][google.cloud.dialogflow.cx.v3beta1.Version] for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to create an [Version][google.cloud.dialogflow.cx.v3beta1.Version] for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int VERSION_FIELD_NUMBER = 2;
+  private com.google.cloud.dialogflow.cx.v3beta1.Version version_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The version to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the version field is set.
+   */
+  @java.lang.Override
+  public boolean hasVersion() {
+    return version_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The version to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The version.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Version getVersion() {
+    return version_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.Version.getDefaultInstance()
+        : version_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The version to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.VersionOrBuilder getVersionOrBuilder() {
+    return getVersion();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getParentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
+    }
+    if (version_ != null) {
+      output.writeMessage(2, getVersion());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getParentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
+    }
+    if (version_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getVersion());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest) obj;
+
+    if (!getParent().equals(other.getParent())) return false;
+    if (hasVersion() != other.hasVersion()) return false;
+    if (hasVersion()) {
+      if (!getVersion().equals(other.getVersion())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    if (hasVersion()) {
+      hash = (37 * hash) + VERSION_FIELD_NUMBER;
+      hash = (53 * hash) + getVersion().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Versions.CreateVersion][google.cloud.dialogflow.cx.v3beta1.Versions.CreateVersion].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateVersionRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateVersionRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      if (versionBuilder_ == null) {
+        version_ = null;
+      } else {
+        version_ = null;
+        versionBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateVersionRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest(this);
+      result.parent_ = parent_;
+      if (versionBuilder_ == null) {
+        result.version_ = version_;
+      } else {
+        result.version_ = versionBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest.getDefaultInstance())
+        return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (other.hasVersion()) {
+        mergeVersion(other.getVersion());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to create an [Version][google.cloud.dialogflow.cx.v3beta1.Version] for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to create an [Version][google.cloud.dialogflow.cx.v3beta1.Version] for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to create an [Version][google.cloud.dialogflow.cx.v3beta1.Version] for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to create an [Version][google.cloud.dialogflow.cx.v3beta1.Version] for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to create an [Version][google.cloud.dialogflow.cx.v3beta1.Version] for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Version version_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Version,
+            com.google.cloud.dialogflow.cx.v3beta1.Version.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.VersionOrBuilder>
+        versionBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The version to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the version field is set.
+     */
+    public boolean hasVersion() {
+      return versionBuilder_ != null || version_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The version to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The version.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Version getVersion() {
+      if (versionBuilder_ == null) {
+        return version_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Version.getDefaultInstance()
+            : version_;
+      } else {
+        return versionBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The version to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setVersion(com.google.cloud.dialogflow.cx.v3beta1.Version value) {
+      if (versionBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        version_ = value;
+        onChanged();
+      } else {
+        versionBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The version to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setVersion(
+        com.google.cloud.dialogflow.cx.v3beta1.Version.Builder builderForValue) {
+      if (versionBuilder_ == null) {
+        version_ = builderForValue.build();
+        onChanged();
+      } else {
+        versionBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The version to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeVersion(com.google.cloud.dialogflow.cx.v3beta1.Version value) {
+      if (versionBuilder_ == null) {
+        if (version_ != null) {
+          version_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Version.newBuilder(version_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          version_ = value;
+        }
+        onChanged();
+      } else {
+        versionBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The version to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearVersion() {
+      if (versionBuilder_ == null) {
+        version_ = null;
+        onChanged();
+      } else {
+        version_ = null;
+        versionBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The version to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Version.Builder getVersionBuilder() {
+
+      onChanged();
+      return getVersionFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The version to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.VersionOrBuilder getVersionOrBuilder() {
+      if (versionBuilder_ != null) {
+        return versionBuilder_.getMessageOrBuilder();
+      } else {
+        return version_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Version.getDefaultInstance()
+            : version_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The version to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Version,
+            com.google.cloud.dialogflow.cx.v3beta1.Version.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.VersionOrBuilder>
+        getVersionFieldBuilder() {
+      if (versionBuilder_ == null) {
+        versionBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Version,
+                com.google.cloud.dialogflow.cx.v3beta1.Version.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.VersionOrBuilder>(
+                getVersion(), getParentForChildren(), isClean());
+        version_ = null;
+      }
+      return versionBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<CreateVersionRequest> PARSER =
+      new com.google.protobuf.AbstractParser<CreateVersionRequest>() {
+        @java.lang.Override
+        public CreateVersionRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new CreateVersionRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<CreateVersionRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<CreateVersionRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateVersionRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateVersionRequestOrBuilder.java
new file mode 100644
index 000000000..a25028505
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateVersionRequestOrBuilder.java
@@ -0,0 +1,99 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/version.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface CreateVersionRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.CreateVersionRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to create an [Version][google.cloud.dialogflow.cx.v3beta1.Version] for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to create an [Version][google.cloud.dialogflow.cx.v3beta1.Version] for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The version to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the version field is set.
+   */
+  boolean hasVersion();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The version to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The version.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Version getVersion();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The version to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.VersionOrBuilder getVersionOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateWebhookRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateWebhookRequest.java
new file mode 100644
index 000000000..052aca789
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateWebhookRequest.java
@@ -0,0 +1,960 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Webhooks.CreateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.CreateWebhook].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest}
+ */
+public final class CreateWebhookRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest)
+    CreateWebhookRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use CreateWebhookRequest.newBuilder() to construct.
+  private CreateWebhookRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private CreateWebhookRequest() {
+    parent_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new CreateWebhookRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private CreateWebhookRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 18:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder subBuilder = null;
+              if (webhook_ != null) {
+                subBuilder = webhook_.toBuilder();
+              }
+              webhook_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Webhook.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(webhook_);
+                webhook_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateWebhookRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateWebhookRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to create a webhook for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to create a webhook for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int WEBHOOK_FIELD_NUMBER = 2;
+  private com.google.cloud.dialogflow.cx.v3beta1.Webhook webhook_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The webhook to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the webhook field is set.
+   */
+  @java.lang.Override
+  public boolean hasWebhook() {
+    return webhook_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The webhook to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The webhook.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Webhook getWebhook() {
+    return webhook_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.Webhook.getDefaultInstance()
+        : webhook_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The webhook to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.WebhookOrBuilder getWebhookOrBuilder() {
+    return getWebhook();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getParentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
+    }
+    if (webhook_ != null) {
+      output.writeMessage(2, getWebhook());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getParentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
+    }
+    if (webhook_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getWebhook());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest) obj;
+
+    if (!getParent().equals(other.getParent())) return false;
+    if (hasWebhook() != other.hasWebhook()) return false;
+    if (hasWebhook()) {
+      if (!getWebhook().equals(other.getWebhook())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    if (hasWebhook()) {
+      hash = (37 * hash) + WEBHOOK_FIELD_NUMBER;
+      hash = (53 * hash) + getWebhook().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Webhooks.CreateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.CreateWebhook].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateWebhookRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateWebhookRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      if (webhookBuilder_ == null) {
+        webhook_ = null;
+      } else {
+        webhook_ = null;
+        webhookBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_CreateWebhookRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest(this);
+      result.parent_ = parent_;
+      if (webhookBuilder_ == null) {
+        result.webhook_ = webhook_;
+      } else {
+        result.webhook_ = webhookBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest.getDefaultInstance())
+        return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (other.hasWebhook()) {
+        mergeWebhook(other.getWebhook());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create a webhook for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create a webhook for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create a webhook for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create a webhook for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to create a webhook for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Webhook webhook_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook,
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookOrBuilder>
+        webhookBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The webhook to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the webhook field is set.
+     */
+    public boolean hasWebhook() {
+      return webhookBuilder_ != null || webhook_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The webhook to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The webhook.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Webhook getWebhook() {
+      if (webhookBuilder_ == null) {
+        return webhook_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Webhook.getDefaultInstance()
+            : webhook_;
+      } else {
+        return webhookBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The webhook to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setWebhook(com.google.cloud.dialogflow.cx.v3beta1.Webhook value) {
+      if (webhookBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        webhook_ = value;
+        onChanged();
+      } else {
+        webhookBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The webhook to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setWebhook(
+        com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder builderForValue) {
+      if (webhookBuilder_ == null) {
+        webhook_ = builderForValue.build();
+        onChanged();
+      } else {
+        webhookBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The webhook to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeWebhook(com.google.cloud.dialogflow.cx.v3beta1.Webhook value) {
+      if (webhookBuilder_ == null) {
+        if (webhook_ != null) {
+          webhook_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Webhook.newBuilder(webhook_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          webhook_ = value;
+        }
+        onChanged();
+      } else {
+        webhookBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The webhook to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearWebhook() {
+      if (webhookBuilder_ == null) {
+        webhook_ = null;
+        onChanged();
+      } else {
+        webhook_ = null;
+        webhookBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The webhook to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder getWebhookBuilder() {
+
+      onChanged();
+      return getWebhookFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The webhook to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookOrBuilder getWebhookOrBuilder() {
+      if (webhookBuilder_ != null) {
+        return webhookBuilder_.getMessageOrBuilder();
+      } else {
+        return webhook_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Webhook.getDefaultInstance()
+            : webhook_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The webhook to create.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook,
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookOrBuilder>
+        getWebhookFieldBuilder() {
+      if (webhookBuilder_ == null) {
+        webhookBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Webhook,
+                com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.WebhookOrBuilder>(
+                getWebhook(), getParentForChildren(), isClean());
+        webhook_ = null;
+      }
+      return webhookBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<CreateWebhookRequest> PARSER =
+      new com.google.protobuf.AbstractParser<CreateWebhookRequest>() {
+        @java.lang.Override
+        public CreateWebhookRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new CreateWebhookRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<CreateWebhookRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<CreateWebhookRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateWebhookRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateWebhookRequestOrBuilder.java
new file mode 100644
index 000000000..163f54758
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateWebhookRequestOrBuilder.java
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface CreateWebhookRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.CreateWebhookRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to create a webhook for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to create a webhook for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The webhook to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the webhook field is set.
+   */
+  boolean hasWebhook();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The webhook to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The webhook.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Webhook getWebhook();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The webhook to create.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.WebhookOrBuilder getWebhookOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteAgentRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteAgentRequest.java
new file mode 100644
index 000000000..24112eae0
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteAgentRequest.java
@@ -0,0 +1,658 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Agents.DeleteAgent][google.cloud.dialogflow.cx.v3beta1.Agents.DeleteAgent].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest}
+ */
+public final class DeleteAgentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest)
+    DeleteAgentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use DeleteAgentRequest.newBuilder() to construct.
+  private DeleteAgentRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private DeleteAgentRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new DeleteAgentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private DeleteAgentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteAgentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteAgentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the agent to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the agent to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Agents.DeleteAgent][google.cloud.dialogflow.cx.v3beta1.Agents.DeleteAgent].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteAgentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteAgentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteAgentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the agent to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the agent to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the agent to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the agent to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the agent to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<DeleteAgentRequest> PARSER =
+      new com.google.protobuf.AbstractParser<DeleteAgentRequest>() {
+        @java.lang.Override
+        public DeleteAgentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new DeleteAgentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<DeleteAgentRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<DeleteAgentRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteAgentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteAgentRequestOrBuilder.java
new file mode 100644
index 000000000..350e2ed90
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteAgentRequestOrBuilder.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface DeleteAgentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.DeleteAgentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the agent to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the agent to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteEntityTypeRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteEntityTypeRequest.java
new file mode 100644
index 000000000..3c3d0bfba
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteEntityTypeRequest.java
@@ -0,0 +1,671 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [EntityTypes.DeleteEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.DeleteEntityType].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest}
+ */
+public final class DeleteEntityTypeRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest)
+    DeleteEntityTypeRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use DeleteEntityTypeRequest.newBuilder() to construct.
+  private DeleteEntityTypeRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private DeleteEntityTypeRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new DeleteEntityTypeRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private DeleteEntityTypeRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteEntityTypeRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteEntityTypeRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the entity type to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the entity type to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [EntityTypes.DeleteEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.DeleteEntityType].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteEntityTypeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteEntityTypeRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteEntityTypeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the entity type to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the entity type to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the entity type to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the entity type to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the entity type to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<DeleteEntityTypeRequest> PARSER =
+      new com.google.protobuf.AbstractParser<DeleteEntityTypeRequest>() {
+        @java.lang.Override
+        public DeleteEntityTypeRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new DeleteEntityTypeRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<DeleteEntityTypeRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<DeleteEntityTypeRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteEntityTypeRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteEntityTypeRequestOrBuilder.java
new file mode 100644
index 000000000..f6ffcf650
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteEntityTypeRequestOrBuilder.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface DeleteEntityTypeRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.DeleteEntityTypeRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the entity type to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the entity type to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteEnvironmentRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteEnvironmentRequest.java
new file mode 100644
index 000000000..e936a786b
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteEnvironmentRequest.java
@@ -0,0 +1,672 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/environment.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Environments.DeleteEnvironment][google.cloud.dialogflow.cx.v3beta1.Environments.DeleteEnvironment].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest}
+ */
+public final class DeleteEnvironmentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest)
+    DeleteEnvironmentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use DeleteEnvironmentRequest.newBuilder() to construct.
+  private DeleteEnvironmentRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private DeleteEnvironmentRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new DeleteEnvironmentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private DeleteEnvironmentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteEnvironmentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteEnvironmentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/environments/&lt;Environment ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/environments/&lt;Environment ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Environments.DeleteEnvironment][google.cloud.dialogflow.cx.v3beta1.Environments.DeleteEnvironment].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteEnvironmentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteEnvironmentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteEnvironmentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/environments/&lt;Environment ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/environments/&lt;Environment ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/environments/&lt;Environment ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/environments/&lt;Environment ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/environments/&lt;Environment ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<DeleteEnvironmentRequest> PARSER =
+      new com.google.protobuf.AbstractParser<DeleteEnvironmentRequest>() {
+        @java.lang.Override
+        public DeleteEnvironmentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new DeleteEnvironmentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<DeleteEnvironmentRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<DeleteEnvironmentRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteEnvironmentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteEnvironmentRequestOrBuilder.java
new file mode 100644
index 000000000..10a04b57b
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteEnvironmentRequestOrBuilder.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/environment.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface DeleteEnvironmentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.DeleteEnvironmentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/environments/&lt;Environment ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/environments/&lt;Environment ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteFlowRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteFlowRequest.java
new file mode 100644
index 000000000..094f6020c
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteFlowRequest.java
@@ -0,0 +1,775 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/flow.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Flows.DeleteFlow][google.cloud.dialogflow.cx.v3beta1.Flows.DeleteFlow].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest}
+ */
+public final class DeleteFlowRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest)
+    DeleteFlowRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use DeleteFlowRequest.newBuilder() to construct.
+  private DeleteFlowRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private DeleteFlowRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new DeleteFlowRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private DeleteFlowRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 16:
+            {
+              force_ = input.readBool();
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteFlowRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteFlowRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the flow to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the flow to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int FORCE_FIELD_NUMBER = 2;
+  private boolean force_;
+  /**
+   *
+   *
+   * <pre>
+   * This field has no effect for flows with no incoming transitions.
+   * For flows with incoming transitions:
+   * *  If `force` is set to false, an error will be returned with message
+   *    indicating the incoming transitions.
+   * *  If `force` is set to true, Dialogflow will remove the flow, as well as
+   *    any transitions to the flow.
+   * </pre>
+   *
+   * <code>bool force = 2;</code>
+   *
+   * @return The force.
+   */
+  @java.lang.Override
+  public boolean getForce() {
+    return force_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (force_ != false) {
+      output.writeBool(2, force_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (force_ != false) {
+      size += com.google.protobuf.CodedOutputStream.computeBoolSize(2, force_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (getForce() != other.getForce()) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + FORCE_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getForce());
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Flows.DeleteFlow][google.cloud.dialogflow.cx.v3beta1.Flows.DeleteFlow].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteFlowRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteFlowRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      force_ = false;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteFlowRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest(this);
+      result.name_ = name_;
+      result.force_ = force_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (other.getForce() != false) {
+        setForce(other.getForce());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the flow to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the flow to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the flow to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the flow to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the flow to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private boolean force_;
+    /**
+     *
+     *
+     * <pre>
+     * This field has no effect for flows with no incoming transitions.
+     * For flows with incoming transitions:
+     * *  If `force` is set to false, an error will be returned with message
+     *    indicating the incoming transitions.
+     * *  If `force` is set to true, Dialogflow will remove the flow, as well as
+     *    any transitions to the flow.
+     * </pre>
+     *
+     * <code>bool force = 2;</code>
+     *
+     * @return The force.
+     */
+    @java.lang.Override
+    public boolean getForce() {
+      return force_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * This field has no effect for flows with no incoming transitions.
+     * For flows with incoming transitions:
+     * *  If `force` is set to false, an error will be returned with message
+     *    indicating the incoming transitions.
+     * *  If `force` is set to true, Dialogflow will remove the flow, as well as
+     *    any transitions to the flow.
+     * </pre>
+     *
+     * <code>bool force = 2;</code>
+     *
+     * @param value The force to set.
+     * @return This builder for chaining.
+     */
+    public Builder setForce(boolean value) {
+
+      force_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * This field has no effect for flows with no incoming transitions.
+     * For flows with incoming transitions:
+     * *  If `force` is set to false, an error will be returned with message
+     *    indicating the incoming transitions.
+     * *  If `force` is set to true, Dialogflow will remove the flow, as well as
+     *    any transitions to the flow.
+     * </pre>
+     *
+     * <code>bool force = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearForce() {
+
+      force_ = false;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<DeleteFlowRequest> PARSER =
+      new com.google.protobuf.AbstractParser<DeleteFlowRequest>() {
+        @java.lang.Override
+        public DeleteFlowRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new DeleteFlowRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<DeleteFlowRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<DeleteFlowRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteFlowRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteFlowRequestOrBuilder.java
new file mode 100644
index 000000000..5fc906c52
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteFlowRequestOrBuilder.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/flow.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface DeleteFlowRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.DeleteFlowRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the flow to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the flow to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * This field has no effect for flows with no incoming transitions.
+   * For flows with incoming transitions:
+   * *  If `force` is set to false, an error will be returned with message
+   *    indicating the incoming transitions.
+   * *  If `force` is set to true, Dialogflow will remove the flow, as well as
+   *    any transitions to the flow.
+   * </pre>
+   *
+   * <code>bool force = 2;</code>
+   *
+   * @return The force.
+   */
+  boolean getForce();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteIntentRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteIntentRequest.java
new file mode 100644
index 000000000..4038935b2
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteIntentRequest.java
@@ -0,0 +1,665 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/intent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Intents.DeleteIntent][google.cloud.dialogflow.cx.v3beta1.Intents.DeleteIntent].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest}
+ */
+public final class DeleteIntentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest)
+    DeleteIntentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use DeleteIntentRequest.newBuilder() to construct.
+  private DeleteIntentRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private DeleteIntentRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new DeleteIntentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private DeleteIntentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteIntentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteIntentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the intent to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/intents/&lt;Intent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the intent to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/intents/&lt;Intent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Intents.DeleteIntent][google.cloud.dialogflow.cx.v3beta1.Intents.DeleteIntent].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteIntentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteIntentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteIntentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the intent to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the intent to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the intent to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the intent to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the intent to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<DeleteIntentRequest> PARSER =
+      new com.google.protobuf.AbstractParser<DeleteIntentRequest>() {
+        @java.lang.Override
+        public DeleteIntentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new DeleteIntentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<DeleteIntentRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<DeleteIntentRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteIntentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteIntentRequestOrBuilder.java
new file mode 100644
index 000000000..949b36218
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteIntentRequestOrBuilder.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/intent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface DeleteIntentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.DeleteIntentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the intent to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/intents/&lt;Intent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the intent to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/intents/&lt;Intent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeletePageRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeletePageRequest.java
new file mode 100644
index 000000000..5c32d8b2e
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeletePageRequest.java
@@ -0,0 +1,775 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/page.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Pages.DeletePage][google.cloud.dialogflow.cx.v3beta1.Pages.DeletePage].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DeletePageRequest}
+ */
+public final class DeletePageRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.DeletePageRequest)
+    DeletePageRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use DeletePageRequest.newBuilder() to construct.
+  private DeletePageRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private DeletePageRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new DeletePageRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private DeletePageRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
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+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DeletePageRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DeletePageRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the page to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/Flows/&lt;flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the page to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/Flows/&lt;flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int FORCE_FIELD_NUMBER = 2;
+  private boolean force_;
+  /**
+   *
+   *
+   * <pre>
+   * This field has no effect for pages with no incoming transitions.
+   * For pages with incoming transitions:
+   * *  If `force` is set to false, an error will be returned with message
+   *    indicating the incoming transitions.
+   * *  If `force` is set to true, Dialogflow will remove the page, as well as
+   *    any transitions to the page.
+   * </pre>
+   *
+   * <code>bool force = 2;</code>
+   *
+   * @return The force.
+   */
+  @java.lang.Override
+  public boolean getForce() {
+    return force_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (force_ != false) {
+      output.writeBool(2, force_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (force_ != false) {
+      size += com.google.protobuf.CodedOutputStream.computeBoolSize(2, force_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (getForce() != other.getForce()) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + FORCE_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getForce());
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Pages.DeletePage][google.cloud.dialogflow.cx.v3beta1.Pages.DeletePage].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DeletePageRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.DeletePageRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeletePageRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeletePageRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      force_ = false;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeletePageRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest(this);
+      result.name_ = name_;
+      result.force_ = force_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (other.getForce() != false) {
+        setForce(other.getForce());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the page to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/Flows/&lt;flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the page to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/Flows/&lt;flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the page to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/Flows/&lt;flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the page to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/Flows/&lt;flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the page to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/Flows/&lt;flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private boolean force_;
+    /**
+     *
+     *
+     * <pre>
+     * This field has no effect for pages with no incoming transitions.
+     * For pages with incoming transitions:
+     * *  If `force` is set to false, an error will be returned with message
+     *    indicating the incoming transitions.
+     * *  If `force` is set to true, Dialogflow will remove the page, as well as
+     *    any transitions to the page.
+     * </pre>
+     *
+     * <code>bool force = 2;</code>
+     *
+     * @return The force.
+     */
+    @java.lang.Override
+    public boolean getForce() {
+      return force_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * This field has no effect for pages with no incoming transitions.
+     * For pages with incoming transitions:
+     * *  If `force` is set to false, an error will be returned with message
+     *    indicating the incoming transitions.
+     * *  If `force` is set to true, Dialogflow will remove the page, as well as
+     *    any transitions to the page.
+     * </pre>
+     *
+     * <code>bool force = 2;</code>
+     *
+     * @param value The force to set.
+     * @return This builder for chaining.
+     */
+    public Builder setForce(boolean value) {
+
+      force_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * This field has no effect for pages with no incoming transitions.
+     * For pages with incoming transitions:
+     * *  If `force` is set to false, an error will be returned with message
+     *    indicating the incoming transitions.
+     * *  If `force` is set to true, Dialogflow will remove the page, as well as
+     *    any transitions to the page.
+     * </pre>
+     *
+     * <code>bool force = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearForce() {
+
+      force_ = false;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.DeletePageRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.DeletePageRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<DeletePageRequest> PARSER =
+      new com.google.protobuf.AbstractParser<DeletePageRequest>() {
+        @java.lang.Override
+        public DeletePageRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new DeletePageRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<DeletePageRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<DeletePageRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.DeletePageRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeletePageRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeletePageRequestOrBuilder.java
new file mode 100644
index 000000000..70e780e4f
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeletePageRequestOrBuilder.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/page.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface DeletePageRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.DeletePageRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the page to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/Flows/&lt;flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the page to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/Flows/&lt;flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * This field has no effect for pages with no incoming transitions.
+   * For pages with incoming transitions:
+   * *  If `force` is set to false, an error will be returned with message
+   *    indicating the incoming transitions.
+   * *  If `force` is set to true, Dialogflow will remove the page, as well as
+   *    any transitions to the page.
+   * </pre>
+   *
+   * <code>bool force = 2;</code>
+   *
+   * @return The force.
+   */
+  boolean getForce();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteSessionEntityTypeRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteSessionEntityTypeRequest.java
new file mode 100644
index 000000000..33b837da8
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteSessionEntityTypeRequest.java
@@ -0,0 +1,677 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [SessionEntityTypes.DeleteSessionEntityType][google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes.DeleteSessionEntityType].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest}
+ */
+public final class DeleteSessionEntityTypeRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest)
+    DeleteSessionEntityTypeRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use DeleteSessionEntityTypeRequest.newBuilder() to construct.
+  private DeleteSessionEntityTypeRequest(
+      com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private DeleteSessionEntityTypeRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new DeleteSessionEntityTypeRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private DeleteSessionEntityTypeRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteSessionEntityTypeRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteSessionEntityTypeRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the session entity type to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the session entity type to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest
+      parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest
+      parseDelimitedFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [SessionEntityTypes.DeleteSessionEntityType][google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes.DeleteSessionEntityType].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteSessionEntityTypeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteSessionEntityTypeRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest.Builder.class);
+    }
+
+    // Construct using
+    // com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteSessionEntityTypeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest
+          .getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest) {
+        return mergeFrom(
+            (com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest
+              .getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the session entity type to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the session entity type to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the session entity type to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the session entity type to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the session entity type to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<DeleteSessionEntityTypeRequest> PARSER =
+      new com.google.protobuf.AbstractParser<DeleteSessionEntityTypeRequest>() {
+        @java.lang.Override
+        public DeleteSessionEntityTypeRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new DeleteSessionEntityTypeRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<DeleteSessionEntityTypeRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<DeleteSessionEntityTypeRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteSessionEntityTypeRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteSessionEntityTypeRequestOrBuilder.java
new file mode 100644
index 000000000..b28377c80
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteSessionEntityTypeRequestOrBuilder.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface DeleteSessionEntityTypeRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.DeleteSessionEntityTypeRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the session entity type to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the session entity type to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteTransitionRouteGroupRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteTransitionRouteGroupRequest.java
new file mode 100644
index 000000000..1b988eff3
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteTransitionRouteGroupRequest.java
@@ -0,0 +1,792 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [TransitionRouteGroups.DeleteTransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.DeleteTransitionRouteGroup].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest}
+ */
+public final class DeleteTransitionRouteGroupRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest)
+    DeleteTransitionRouteGroupRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use DeleteTransitionRouteGroupRequest.newBuilder() to construct.
+  private DeleteTransitionRouteGroupRequest(
+      com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private DeleteTransitionRouteGroupRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new DeleteTransitionRouteGroupRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private DeleteTransitionRouteGroupRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 16:
+            {
+              force_ = input.readBool();
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteTransitionRouteGroupRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteTransitionRouteGroupRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int FORCE_FIELD_NUMBER = 2;
+  private boolean force_;
+  /**
+   *
+   *
+   * <pre>
+   * This field has no effect for transition route group that no page is using.
+   * If the transition route group is referenced by any page:
+   * *  If `force` is set to false, an error will be returned with message
+   *    indicating pages that reference the transition route group.
+   * *  If `force` is set to true, Dialogflow will remove the transition route
+   *    group, as well as any reference to it.
+   * </pre>
+   *
+   * <code>bool force = 2;</code>
+   *
+   * @return The force.
+   */
+  @java.lang.Override
+  public boolean getForce() {
+    return force_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (force_ != false) {
+      output.writeBool(2, force_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (force_ != false) {
+      size += com.google.protobuf.CodedOutputStream.computeBoolSize(2, force_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj
+        instanceof com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (getForce() != other.getForce()) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + FORCE_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getForce());
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest
+      parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest
+      parseDelimitedFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [TransitionRouteGroups.DeleteTransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.DeleteTransitionRouteGroup].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteTransitionRouteGroupRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteTransitionRouteGroupRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest.Builder
+                  .class);
+    }
+
+    // Construct using
+    // com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      force_ = false;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteTransitionRouteGroupRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest
+          .getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest result =
+          buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest(this);
+      result.name_ = name_;
+      result.force_ = force_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other
+          instanceof com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest) {
+        return mergeFrom(
+            (com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest
+              .getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (other.getForce() != false) {
+        setForce(other.getForce());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private boolean force_;
+    /**
+     *
+     *
+     * <pre>
+     * This field has no effect for transition route group that no page is using.
+     * If the transition route group is referenced by any page:
+     * *  If `force` is set to false, an error will be returned with message
+     *    indicating pages that reference the transition route group.
+     * *  If `force` is set to true, Dialogflow will remove the transition route
+     *    group, as well as any reference to it.
+     * </pre>
+     *
+     * <code>bool force = 2;</code>
+     *
+     * @return The force.
+     */
+    @java.lang.Override
+    public boolean getForce() {
+      return force_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * This field has no effect for transition route group that no page is using.
+     * If the transition route group is referenced by any page:
+     * *  If `force` is set to false, an error will be returned with message
+     *    indicating pages that reference the transition route group.
+     * *  If `force` is set to true, Dialogflow will remove the transition route
+     *    group, as well as any reference to it.
+     * </pre>
+     *
+     * <code>bool force = 2;</code>
+     *
+     * @param value The force to set.
+     * @return This builder for chaining.
+     */
+    public Builder setForce(boolean value) {
+
+      force_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * This field has no effect for transition route group that no page is using.
+     * If the transition route group is referenced by any page:
+     * *  If `force` is set to false, an error will be returned with message
+     *    indicating pages that reference the transition route group.
+     * *  If `force` is set to true, Dialogflow will remove the transition route
+     *    group, as well as any reference to it.
+     * </pre>
+     *
+     * <code>bool force = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearForce() {
+
+      force_ = false;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE =
+        new com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<DeleteTransitionRouteGroupRequest> PARSER =
+      new com.google.protobuf.AbstractParser<DeleteTransitionRouteGroupRequest>() {
+        @java.lang.Override
+        public DeleteTransitionRouteGroupRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new DeleteTransitionRouteGroupRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<DeleteTransitionRouteGroupRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<DeleteTransitionRouteGroupRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteTransitionRouteGroupRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteTransitionRouteGroupRequestOrBuilder.java
new file mode 100644
index 000000000..e60524762
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteTransitionRouteGroupRequestOrBuilder.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface DeleteTransitionRouteGroupRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.DeleteTransitionRouteGroupRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * This field has no effect for transition route group that no page is using.
+   * If the transition route group is referenced by any page:
+   * *  If `force` is set to false, an error will be returned with message
+   *    indicating pages that reference the transition route group.
+   * *  If `force` is set to true, Dialogflow will remove the transition route
+   *    group, as well as any reference to it.
+   * </pre>
+   *
+   * <code>bool force = 2;</code>
+   *
+   * @return The force.
+   */
+  boolean getForce();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteVersionRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteVersionRequest.java
new file mode 100644
index 000000000..aad9b50ff
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteVersionRequest.java
@@ -0,0 +1,665 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/version.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Versions.DeleteVersion][google.cloud.dialogflow.cx.v3beta1.Versions.DeleteVersion].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest}
+ */
+public final class DeleteVersionRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest)
+    DeleteVersionRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use DeleteVersionRequest.newBuilder() to construct.
+  private DeleteVersionRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private DeleteVersionRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new DeleteVersionRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private DeleteVersionRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteVersionRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteVersionRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version] to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version] to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Versions.DeleteVersion][google.cloud.dialogflow.cx.v3beta1.Versions.DeleteVersion].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteVersionRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteVersionRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteVersionRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version] to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version] to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version] to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version] to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version] to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<DeleteVersionRequest> PARSER =
+      new com.google.protobuf.AbstractParser<DeleteVersionRequest>() {
+        @java.lang.Override
+        public DeleteVersionRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new DeleteVersionRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<DeleteVersionRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<DeleteVersionRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteVersionRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteVersionRequestOrBuilder.java
new file mode 100644
index 000000000..80a21429e
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteVersionRequestOrBuilder.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/version.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface DeleteVersionRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.DeleteVersionRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version] to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version] to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteWebhookRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteWebhookRequest.java
new file mode 100644
index 000000000..4a16f933e
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteWebhookRequest.java
@@ -0,0 +1,665 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Webhooks.DeleteWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.DeleteWebhook].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest}
+ */
+public final class DeleteWebhookRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest)
+    DeleteWebhookRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use DeleteWebhookRequest.newBuilder() to construct.
+  private DeleteWebhookRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private DeleteWebhookRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new DeleteWebhookRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private DeleteWebhookRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteWebhookRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteWebhookRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the webhook to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the webhook to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Webhooks.DeleteWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.DeleteWebhook].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteWebhookRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteWebhookRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteWebhookRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the webhook to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the webhook to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the webhook to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the webhook to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the webhook to delete.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<DeleteWebhookRequest> PARSER =
+      new com.google.protobuf.AbstractParser<DeleteWebhookRequest>() {
+        @java.lang.Override
+        public DeleteWebhookRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new DeleteWebhookRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<DeleteWebhookRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<DeleteWebhookRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteWebhookRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteWebhookRequestOrBuilder.java
new file mode 100644
index 000000000..a73a51099
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DeleteWebhookRequestOrBuilder.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface DeleteWebhookRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.DeleteWebhookRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the webhook to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the webhook to delete.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DetectIntentRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DetectIntentRequest.java
new file mode 100644
index 000000000..913ee2a95
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DetectIntentRequest.java
@@ -0,0 +1,1554 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request to detect user's intent.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest}
+ */
+public final class DetectIntentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest)
+    DetectIntentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use DetectIntentRequest.newBuilder() to construct.
+  private DetectIntentRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private DetectIntentRequest() {
+    session_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new DetectIntentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private DetectIntentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              session_ = s;
+              break;
+            }
+          case 18:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.Builder subBuilder = null;
+              if (queryParams_ != null) {
+                subBuilder = queryParams_.toBuilder();
+              }
+              queryParams_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(queryParams_);
+                queryParams_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 26:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.QueryInput.Builder subBuilder = null;
+              if (queryInput_ != null) {
+                subBuilder = queryInput_.toBuilder();
+              }
+              queryInput_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.QueryInput.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(queryInput_);
+                queryInput_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 34:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder subBuilder = null;
+              if (outputAudioConfig_ != null) {
+                subBuilder = outputAudioConfig_.toBuilder();
+              }
+              outputAudioConfig_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(outputAudioConfig_);
+                outputAudioConfig_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DetectIntentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DetectIntentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest.Builder.class);
+  }
+
+  public static final int SESSION_FIELD_NUMBER = 1;
+  private volatile java.lang.Object session_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the session this query is sent to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * It's up to the API caller to choose an appropriate `Session ID`. It can be
+   * a random number or some type of session identifiers (preferably hashed).
+   * The length of the `Session ID` must not exceed 36 characters.
+   * </pre>
+   *
+   * <code>
+   * string session = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The session.
+   */
+  @java.lang.Override
+  public java.lang.String getSession() {
+    java.lang.Object ref = session_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      session_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the session this query is sent to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * It's up to the API caller to choose an appropriate `Session ID`. It can be
+   * a random number or some type of session identifiers (preferably hashed).
+   * The length of the `Session ID` must not exceed 36 characters.
+   * </pre>
+   *
+   * <code>
+   * string session = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for session.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getSessionBytes() {
+    java.lang.Object ref = session_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      session_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int QUERY_PARAMS_FIELD_NUMBER = 2;
+  private com.google.cloud.dialogflow.cx.v3beta1.QueryParameters queryParams_;
+  /**
+   *
+   *
+   * <pre>
+   * The parameters of this query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+   *
+   * @return Whether the queryParams field is set.
+   */
+  @java.lang.Override
+  public boolean hasQueryParams() {
+    return queryParams_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The parameters of this query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+   *
+   * @return The queryParams.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.QueryParameters getQueryParams() {
+    return queryParams_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.getDefaultInstance()
+        : queryParams_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The parameters of this query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.QueryParametersOrBuilder getQueryParamsOrBuilder() {
+    return getQueryParams();
+  }
+
+  public static final int QUERY_INPUT_FIELD_NUMBER = 3;
+  private com.google.cloud.dialogflow.cx.v3beta1.QueryInput queryInput_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The input specification.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the queryInput field is set.
+   */
+  @java.lang.Override
+  public boolean hasQueryInput() {
+    return queryInput_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The input specification.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The queryInput.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.QueryInput getQueryInput() {
+    return queryInput_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.QueryInput.getDefaultInstance()
+        : queryInput_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The input specification.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.QueryInputOrBuilder getQueryInputOrBuilder() {
+    return getQueryInput();
+  }
+
+  public static final int OUTPUT_AUDIO_CONFIG_FIELD_NUMBER = 4;
+  private com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig outputAudioConfig_;
+  /**
+   *
+   *
+   * <pre>
+   * Instructs the speech synthesizer how to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+   *
+   * @return Whether the outputAudioConfig field is set.
+   */
+  @java.lang.Override
+  public boolean hasOutputAudioConfig() {
+    return outputAudioConfig_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Instructs the speech synthesizer how to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+   *
+   * @return The outputAudioConfig.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig getOutputAudioConfig() {
+    return outputAudioConfig_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.getDefaultInstance()
+        : outputAudioConfig_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Instructs the speech synthesizer how to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder
+      getOutputAudioConfigOrBuilder() {
+    return getOutputAudioConfig();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getSessionBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, session_);
+    }
+    if (queryParams_ != null) {
+      output.writeMessage(2, getQueryParams());
+    }
+    if (queryInput_ != null) {
+      output.writeMessage(3, getQueryInput());
+    }
+    if (outputAudioConfig_ != null) {
+      output.writeMessage(4, getOutputAudioConfig());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getSessionBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, session_);
+    }
+    if (queryParams_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getQueryParams());
+    }
+    if (queryInput_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getQueryInput());
+    }
+    if (outputAudioConfig_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, getOutputAudioConfig());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest) obj;
+
+    if (!getSession().equals(other.getSession())) return false;
+    if (hasQueryParams() != other.hasQueryParams()) return false;
+    if (hasQueryParams()) {
+      if (!getQueryParams().equals(other.getQueryParams())) return false;
+    }
+    if (hasQueryInput() != other.hasQueryInput()) return false;
+    if (hasQueryInput()) {
+      if (!getQueryInput().equals(other.getQueryInput())) return false;
+    }
+    if (hasOutputAudioConfig() != other.hasOutputAudioConfig()) return false;
+    if (hasOutputAudioConfig()) {
+      if (!getOutputAudioConfig().equals(other.getOutputAudioConfig())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + SESSION_FIELD_NUMBER;
+    hash = (53 * hash) + getSession().hashCode();
+    if (hasQueryParams()) {
+      hash = (37 * hash) + QUERY_PARAMS_FIELD_NUMBER;
+      hash = (53 * hash) + getQueryParams().hashCode();
+    }
+    if (hasQueryInput()) {
+      hash = (37 * hash) + QUERY_INPUT_FIELD_NUMBER;
+      hash = (53 * hash) + getQueryInput().hashCode();
+    }
+    if (hasOutputAudioConfig()) {
+      hash = (37 * hash) + OUTPUT_AUDIO_CONFIG_FIELD_NUMBER;
+      hash = (53 * hash) + getOutputAudioConfig().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request to detect user's intent.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DetectIntentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DetectIntentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      session_ = "";
+
+      if (queryParamsBuilder_ == null) {
+        queryParams_ = null;
+      } else {
+        queryParams_ = null;
+        queryParamsBuilder_ = null;
+      }
+      if (queryInputBuilder_ == null) {
+        queryInput_ = null;
+      } else {
+        queryInput_ = null;
+        queryInputBuilder_ = null;
+      }
+      if (outputAudioConfigBuilder_ == null) {
+        outputAudioConfig_ = null;
+      } else {
+        outputAudioConfig_ = null;
+        outputAudioConfigBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DetectIntentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest(this);
+      result.session_ = session_;
+      if (queryParamsBuilder_ == null) {
+        result.queryParams_ = queryParams_;
+      } else {
+        result.queryParams_ = queryParamsBuilder_.build();
+      }
+      if (queryInputBuilder_ == null) {
+        result.queryInput_ = queryInput_;
+      } else {
+        result.queryInput_ = queryInputBuilder_.build();
+      }
+      if (outputAudioConfigBuilder_ == null) {
+        result.outputAudioConfig_ = outputAudioConfig_;
+      } else {
+        result.outputAudioConfig_ = outputAudioConfigBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest.getDefaultInstance())
+        return this;
+      if (!other.getSession().isEmpty()) {
+        session_ = other.session_;
+        onChanged();
+      }
+      if (other.hasQueryParams()) {
+        mergeQueryParams(other.getQueryParams());
+      }
+      if (other.hasQueryInput()) {
+        mergeQueryInput(other.getQueryInput());
+      }
+      if (other.hasOutputAudioConfig()) {
+        mergeOutputAudioConfig(other.getOutputAudioConfig());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object session_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the session this query is sent to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * It's up to the API caller to choose an appropriate `Session ID`. It can be
+     * a random number or some type of session identifiers (preferably hashed).
+     * The length of the `Session ID` must not exceed 36 characters.
+     * </pre>
+     *
+     * <code>
+     * string session = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The session.
+     */
+    public java.lang.String getSession() {
+      java.lang.Object ref = session_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        session_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the session this query is sent to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * It's up to the API caller to choose an appropriate `Session ID`. It can be
+     * a random number or some type of session identifiers (preferably hashed).
+     * The length of the `Session ID` must not exceed 36 characters.
+     * </pre>
+     *
+     * <code>
+     * string session = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for session.
+     */
+    public com.google.protobuf.ByteString getSessionBytes() {
+      java.lang.Object ref = session_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        session_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the session this query is sent to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * It's up to the API caller to choose an appropriate `Session ID`. It can be
+     * a random number or some type of session identifiers (preferably hashed).
+     * The length of the `Session ID` must not exceed 36 characters.
+     * </pre>
+     *
+     * <code>
+     * string session = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The session to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSession(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      session_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the session this query is sent to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * It's up to the API caller to choose an appropriate `Session ID`. It can be
+     * a random number or some type of session identifiers (preferably hashed).
+     * The length of the `Session ID` must not exceed 36 characters.
+     * </pre>
+     *
+     * <code>
+     * string session = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearSession() {
+
+      session_ = getDefaultInstance().getSession();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the session this query is sent to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * It's up to the API caller to choose an appropriate `Session ID`. It can be
+     * a random number or some type of session identifiers (preferably hashed).
+     * The length of the `Session ID` must not exceed 36 characters.
+     * </pre>
+     *
+     * <code>
+     * string session = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for session to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSessionBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      session_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.QueryParameters queryParams_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.QueryParameters,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryParametersOrBuilder>
+        queryParamsBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     *
+     * @return Whether the queryParams field is set.
+     */
+    public boolean hasQueryParams() {
+      return queryParamsBuilder_ != null || queryParams_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     *
+     * @return The queryParams.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryParameters getQueryParams() {
+      if (queryParamsBuilder_ == null) {
+        return queryParams_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.getDefaultInstance()
+            : queryParams_;
+      } else {
+        return queryParamsBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     */
+    public Builder setQueryParams(com.google.cloud.dialogflow.cx.v3beta1.QueryParameters value) {
+      if (queryParamsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        queryParams_ = value;
+        onChanged();
+      } else {
+        queryParamsBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     */
+    public Builder setQueryParams(
+        com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.Builder builderForValue) {
+      if (queryParamsBuilder_ == null) {
+        queryParams_ = builderForValue.build();
+        onChanged();
+      } else {
+        queryParamsBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     */
+    public Builder mergeQueryParams(com.google.cloud.dialogflow.cx.v3beta1.QueryParameters value) {
+      if (queryParamsBuilder_ == null) {
+        if (queryParams_ != null) {
+          queryParams_ =
+              com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.newBuilder(queryParams_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          queryParams_ = value;
+        }
+        onChanged();
+      } else {
+        queryParamsBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     */
+    public Builder clearQueryParams() {
+      if (queryParamsBuilder_ == null) {
+        queryParams_ = null;
+        onChanged();
+      } else {
+        queryParams_ = null;
+        queryParamsBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.Builder getQueryParamsBuilder() {
+
+      onChanged();
+      return getQueryParamsFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryParametersOrBuilder
+        getQueryParamsOrBuilder() {
+      if (queryParamsBuilder_ != null) {
+        return queryParamsBuilder_.getMessageOrBuilder();
+      } else {
+        return queryParams_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.getDefaultInstance()
+            : queryParams_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.QueryParameters,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryParametersOrBuilder>
+        getQueryParamsFieldBuilder() {
+      if (queryParamsBuilder_ == null) {
+        queryParamsBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.QueryParameters,
+                com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.QueryParametersOrBuilder>(
+                getQueryParams(), getParentForChildren(), isClean());
+        queryParams_ = null;
+      }
+      return queryParamsBuilder_;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.QueryInput queryInput_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.QueryInput,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryInput.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryInputOrBuilder>
+        queryInputBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the queryInput field is set.
+     */
+    public boolean hasQueryInput() {
+      return queryInputBuilder_ != null || queryInput_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The queryInput.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryInput getQueryInput() {
+      if (queryInputBuilder_ == null) {
+        return queryInput_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.QueryInput.getDefaultInstance()
+            : queryInput_;
+      } else {
+        return queryInputBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setQueryInput(com.google.cloud.dialogflow.cx.v3beta1.QueryInput value) {
+      if (queryInputBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        queryInput_ = value;
+        onChanged();
+      } else {
+        queryInputBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setQueryInput(
+        com.google.cloud.dialogflow.cx.v3beta1.QueryInput.Builder builderForValue) {
+      if (queryInputBuilder_ == null) {
+        queryInput_ = builderForValue.build();
+        onChanged();
+      } else {
+        queryInputBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeQueryInput(com.google.cloud.dialogflow.cx.v3beta1.QueryInput value) {
+      if (queryInputBuilder_ == null) {
+        if (queryInput_ != null) {
+          queryInput_ =
+              com.google.cloud.dialogflow.cx.v3beta1.QueryInput.newBuilder(queryInput_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          queryInput_ = value;
+        }
+        onChanged();
+      } else {
+        queryInputBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearQueryInput() {
+      if (queryInputBuilder_ == null) {
+        queryInput_ = null;
+        onChanged();
+      } else {
+        queryInput_ = null;
+        queryInputBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryInput.Builder getQueryInputBuilder() {
+
+      onChanged();
+      return getQueryInputFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryInputOrBuilder getQueryInputOrBuilder() {
+      if (queryInputBuilder_ != null) {
+        return queryInputBuilder_.getMessageOrBuilder();
+      } else {
+        return queryInput_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.QueryInput.getDefaultInstance()
+            : queryInput_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.QueryInput,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryInput.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryInputOrBuilder>
+        getQueryInputFieldBuilder() {
+      if (queryInputBuilder_ == null) {
+        queryInputBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.QueryInput,
+                com.google.cloud.dialogflow.cx.v3beta1.QueryInput.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.QueryInputOrBuilder>(
+                getQueryInput(), getParentForChildren(), isClean());
+        queryInput_ = null;
+      }
+      return queryInputBuilder_;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig outputAudioConfig_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig,
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder>
+        outputAudioConfigBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     *
+     * @return Whether the outputAudioConfig field is set.
+     */
+    public boolean hasOutputAudioConfig() {
+      return outputAudioConfigBuilder_ != null || outputAudioConfig_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     *
+     * @return The outputAudioConfig.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig getOutputAudioConfig() {
+      if (outputAudioConfigBuilder_ == null) {
+        return outputAudioConfig_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.getDefaultInstance()
+            : outputAudioConfig_;
+      } else {
+        return outputAudioConfigBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     */
+    public Builder setOutputAudioConfig(
+        com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig value) {
+      if (outputAudioConfigBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        outputAudioConfig_ = value;
+        onChanged();
+      } else {
+        outputAudioConfigBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     */
+    public Builder setOutputAudioConfig(
+        com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder builderForValue) {
+      if (outputAudioConfigBuilder_ == null) {
+        outputAudioConfig_ = builderForValue.build();
+        onChanged();
+      } else {
+        outputAudioConfigBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     */
+    public Builder mergeOutputAudioConfig(
+        com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig value) {
+      if (outputAudioConfigBuilder_ == null) {
+        if (outputAudioConfig_ != null) {
+          outputAudioConfig_ =
+              com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.newBuilder(
+                      outputAudioConfig_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          outputAudioConfig_ = value;
+        }
+        onChanged();
+      } else {
+        outputAudioConfigBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     */
+    public Builder clearOutputAudioConfig() {
+      if (outputAudioConfigBuilder_ == null) {
+        outputAudioConfig_ = null;
+        onChanged();
+      } else {
+        outputAudioConfig_ = null;
+        outputAudioConfigBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder
+        getOutputAudioConfigBuilder() {
+
+      onChanged();
+      return getOutputAudioConfigFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder
+        getOutputAudioConfigOrBuilder() {
+      if (outputAudioConfigBuilder_ != null) {
+        return outputAudioConfigBuilder_.getMessageOrBuilder();
+      } else {
+        return outputAudioConfig_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.getDefaultInstance()
+            : outputAudioConfig_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig,
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder>
+        getOutputAudioConfigFieldBuilder() {
+      if (outputAudioConfigBuilder_ == null) {
+        outputAudioConfigBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig,
+                com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder>(
+                getOutputAudioConfig(), getParentForChildren(), isClean());
+        outputAudioConfig_ = null;
+      }
+      return outputAudioConfigBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<DetectIntentRequest> PARSER =
+      new com.google.protobuf.AbstractParser<DetectIntentRequest>() {
+        @java.lang.Override
+        public DetectIntentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new DetectIntentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<DetectIntentRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<DetectIntentRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DetectIntentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DetectIntentRequestOrBuilder.java
new file mode 100644
index 000000000..cb909fcf6
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DetectIntentRequestOrBuilder.java
@@ -0,0 +1,175 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface DetectIntentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the session this query is sent to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * It's up to the API caller to choose an appropriate `Session ID`. It can be
+   * a random number or some type of session identifiers (preferably hashed).
+   * The length of the `Session ID` must not exceed 36 characters.
+   * </pre>
+   *
+   * <code>
+   * string session = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The session.
+   */
+  java.lang.String getSession();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the session this query is sent to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * It's up to the API caller to choose an appropriate `Session ID`. It can be
+   * a random number or some type of session identifiers (preferably hashed).
+   * The length of the `Session ID` must not exceed 36 characters.
+   * </pre>
+   *
+   * <code>
+   * string session = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for session.
+   */
+  com.google.protobuf.ByteString getSessionBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The parameters of this query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+   *
+   * @return Whether the queryParams field is set.
+   */
+  boolean hasQueryParams();
+  /**
+   *
+   *
+   * <pre>
+   * The parameters of this query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+   *
+   * @return The queryParams.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.QueryParameters getQueryParams();
+  /**
+   *
+   *
+   * <pre>
+   * The parameters of this query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.QueryParametersOrBuilder getQueryParamsOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The input specification.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the queryInput field is set.
+   */
+  boolean hasQueryInput();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The input specification.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The queryInput.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.QueryInput getQueryInput();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The input specification.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.QueryInputOrBuilder getQueryInputOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Instructs the speech synthesizer how to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+   *
+   * @return Whether the outputAudioConfig field is set.
+   */
+  boolean hasOutputAudioConfig();
+  /**
+   *
+   *
+   * <pre>
+   * Instructs the speech synthesizer how to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+   *
+   * @return The outputAudioConfig.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig getOutputAudioConfig();
+  /**
+   *
+   *
+   * <pre>
+   * Instructs the speech synthesizer how to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder getOutputAudioConfigOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DetectIntentResponse.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DetectIntentResponse.java
new file mode 100644
index 000000000..c144fbed4
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DetectIntentResponse.java
@@ -0,0 +1,1338 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The message returned from the DetectIntent method.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse}
+ */
+public final class DetectIntentResponse extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse)
+    DetectIntentResponseOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use DetectIntentResponse.newBuilder() to construct.
+  private DetectIntentResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private DetectIntentResponse() {
+    responseId_ = "";
+    outputAudio_ = com.google.protobuf.ByteString.EMPTY;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new DetectIntentResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private DetectIntentResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              responseId_ = s;
+              break;
+            }
+          case 18:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.QueryResult.Builder subBuilder = null;
+              if (queryResult_ != null) {
+                subBuilder = queryResult_.toBuilder();
+              }
+              queryResult_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.QueryResult.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(queryResult_);
+                queryResult_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 34:
+            {
+              outputAudio_ = input.readBytes();
+              break;
+            }
+          case 42:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder subBuilder = null;
+              if (outputAudioConfig_ != null) {
+                subBuilder = outputAudioConfig_.toBuilder();
+              }
+              outputAudioConfig_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(outputAudioConfig_);
+                outputAudioConfig_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DetectIntentResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_DetectIntentResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse.class,
+            com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse.Builder.class);
+  }
+
+  public static final int RESPONSE_ID_FIELD_NUMBER = 1;
+  private volatile java.lang.Object responseId_;
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The unique identifier of the response. It can be used to
+   * locate a response in the training example set or for reporting issues.
+   * </pre>
+   *
+   * <code>string response_id = 1;</code>
+   *
+   * @return The responseId.
+   */
+  @java.lang.Override
+  public java.lang.String getResponseId() {
+    java.lang.Object ref = responseId_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      responseId_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The unique identifier of the response. It can be used to
+   * locate a response in the training example set or for reporting issues.
+   * </pre>
+   *
+   * <code>string response_id = 1;</code>
+   *
+   * @return The bytes for responseId.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getResponseIdBytes() {
+    java.lang.Object ref = responseId_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      responseId_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int QUERY_RESULT_FIELD_NUMBER = 2;
+  private com.google.cloud.dialogflow.cx.v3beta1.QueryResult queryResult_;
+  /**
+   *
+   *
+   * <pre>
+   * The result of the conversational query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+   *
+   * @return Whether the queryResult field is set.
+   */
+  @java.lang.Override
+  public boolean hasQueryResult() {
+    return queryResult_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The result of the conversational query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+   *
+   * @return The queryResult.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.QueryResult getQueryResult() {
+    return queryResult_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.QueryResult.getDefaultInstance()
+        : queryResult_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The result of the conversational query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.QueryResultOrBuilder getQueryResultOrBuilder() {
+    return getQueryResult();
+  }
+
+  public static final int OUTPUT_AUDIO_FIELD_NUMBER = 4;
+  private com.google.protobuf.ByteString outputAudio_;
+  /**
+   *
+   *
+   * <pre>
+   * The audio data bytes encoded as specified in the request.
+   * Note: The output audio is generated based on the values of default platform
+   * text responses found in the
+   * [`query_result.response_messages`][google.cloud.dialogflow.cx.v3beta1.QueryResult.response_messages] field. If
+   * multiple default text responses exist, they will be concatenated when
+   * generating audio. If no default platform text responses exist, the
+   * generated audio content will be empty.
+   * In some scenarios, multiple output audio fields may be present in the
+   * response structure. In these cases, only the top-most-level audio output
+   * has content.
+   * </pre>
+   *
+   * <code>bytes output_audio = 4;</code>
+   *
+   * @return The outputAudio.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getOutputAudio() {
+    return outputAudio_;
+  }
+
+  public static final int OUTPUT_AUDIO_CONFIG_FIELD_NUMBER = 5;
+  private com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig outputAudioConfig_;
+  /**
+   *
+   *
+   * <pre>
+   * The config used by the speech synthesizer to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 5;</code>
+   *
+   * @return Whether the outputAudioConfig field is set.
+   */
+  @java.lang.Override
+  public boolean hasOutputAudioConfig() {
+    return outputAudioConfig_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The config used by the speech synthesizer to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 5;</code>
+   *
+   * @return The outputAudioConfig.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig getOutputAudioConfig() {
+    return outputAudioConfig_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.getDefaultInstance()
+        : outputAudioConfig_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The config used by the speech synthesizer to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 5;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder
+      getOutputAudioConfigOrBuilder() {
+    return getOutputAudioConfig();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getResponseIdBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, responseId_);
+    }
+    if (queryResult_ != null) {
+      output.writeMessage(2, getQueryResult());
+    }
+    if (!outputAudio_.isEmpty()) {
+      output.writeBytes(4, outputAudio_);
+    }
+    if (outputAudioConfig_ != null) {
+      output.writeMessage(5, getOutputAudioConfig());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getResponseIdBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, responseId_);
+    }
+    if (queryResult_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getQueryResult());
+    }
+    if (!outputAudio_.isEmpty()) {
+      size += com.google.protobuf.CodedOutputStream.computeBytesSize(4, outputAudio_);
+    }
+    if (outputAudioConfig_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, getOutputAudioConfig());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse other =
+        (com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse) obj;
+
+    if (!getResponseId().equals(other.getResponseId())) return false;
+    if (hasQueryResult() != other.hasQueryResult()) return false;
+    if (hasQueryResult()) {
+      if (!getQueryResult().equals(other.getQueryResult())) return false;
+    }
+    if (!getOutputAudio().equals(other.getOutputAudio())) return false;
+    if (hasOutputAudioConfig() != other.hasOutputAudioConfig()) return false;
+    if (hasOutputAudioConfig()) {
+      if (!getOutputAudioConfig().equals(other.getOutputAudioConfig())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + RESPONSE_ID_FIELD_NUMBER;
+    hash = (53 * hash) + getResponseId().hashCode();
+    if (hasQueryResult()) {
+      hash = (37 * hash) + QUERY_RESULT_FIELD_NUMBER;
+      hash = (53 * hash) + getQueryResult().hashCode();
+    }
+    hash = (37 * hash) + OUTPUT_AUDIO_FIELD_NUMBER;
+    hash = (53 * hash) + getOutputAudio().hashCode();
+    if (hasOutputAudioConfig()) {
+      hash = (37 * hash) + OUTPUT_AUDIO_CONFIG_FIELD_NUMBER;
+      hash = (53 * hash) + getOutputAudioConfig().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The message returned from the DetectIntent method.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse)
+      com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DetectIntentResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DetectIntentResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse.class,
+              com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      responseId_ = "";
+
+      if (queryResultBuilder_ == null) {
+        queryResult_ = null;
+      } else {
+        queryResult_ = null;
+        queryResultBuilder_ = null;
+      }
+      outputAudio_ = com.google.protobuf.ByteString.EMPTY;
+
+      if (outputAudioConfigBuilder_ == null) {
+        outputAudioConfig_ = null;
+      } else {
+        outputAudioConfig_ = null;
+        outputAudioConfigBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_DetectIntentResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse build() {
+      com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse result =
+          new com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse(this);
+      result.responseId_ = responseId_;
+      if (queryResultBuilder_ == null) {
+        result.queryResult_ = queryResult_;
+      } else {
+        result.queryResult_ = queryResultBuilder_.build();
+      }
+      result.outputAudio_ = outputAudio_;
+      if (outputAudioConfigBuilder_ == null) {
+        result.outputAudioConfig_ = outputAudioConfig_;
+      } else {
+        result.outputAudioConfig_ = outputAudioConfigBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse.getDefaultInstance())
+        return this;
+      if (!other.getResponseId().isEmpty()) {
+        responseId_ = other.responseId_;
+        onChanged();
+      }
+      if (other.hasQueryResult()) {
+        mergeQueryResult(other.getQueryResult());
+      }
+      if (other.getOutputAudio() != com.google.protobuf.ByteString.EMPTY) {
+        setOutputAudio(other.getOutputAudio());
+      }
+      if (other.hasOutputAudioConfig()) {
+        mergeOutputAudioConfig(other.getOutputAudioConfig());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object responseId_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of the response. It can be used to
+     * locate a response in the training example set or for reporting issues.
+     * </pre>
+     *
+     * <code>string response_id = 1;</code>
+     *
+     * @return The responseId.
+     */
+    public java.lang.String getResponseId() {
+      java.lang.Object ref = responseId_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        responseId_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of the response. It can be used to
+     * locate a response in the training example set or for reporting issues.
+     * </pre>
+     *
+     * <code>string response_id = 1;</code>
+     *
+     * @return The bytes for responseId.
+     */
+    public com.google.protobuf.ByteString getResponseIdBytes() {
+      java.lang.Object ref = responseId_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        responseId_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of the response. It can be used to
+     * locate a response in the training example set or for reporting issues.
+     * </pre>
+     *
+     * <code>string response_id = 1;</code>
+     *
+     * @param value The responseId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setResponseId(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      responseId_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of the response. It can be used to
+     * locate a response in the training example set or for reporting issues.
+     * </pre>
+     *
+     * <code>string response_id = 1;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearResponseId() {
+
+      responseId_ = getDefaultInstance().getResponseId();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of the response. It can be used to
+     * locate a response in the training example set or for reporting issues.
+     * </pre>
+     *
+     * <code>string response_id = 1;</code>
+     *
+     * @param value The bytes for responseId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setResponseIdBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      responseId_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.QueryResult queryResult_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.QueryResult,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryResult.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryResultOrBuilder>
+        queryResultBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The result of the conversational query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+     *
+     * @return Whether the queryResult field is set.
+     */
+    public boolean hasQueryResult() {
+      return queryResultBuilder_ != null || queryResult_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of the conversational query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+     *
+     * @return The queryResult.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryResult getQueryResult() {
+      if (queryResultBuilder_ == null) {
+        return queryResult_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.QueryResult.getDefaultInstance()
+            : queryResult_;
+      } else {
+        return queryResultBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of the conversational query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+     */
+    public Builder setQueryResult(com.google.cloud.dialogflow.cx.v3beta1.QueryResult value) {
+      if (queryResultBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        queryResult_ = value;
+        onChanged();
+      } else {
+        queryResultBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of the conversational query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+     */
+    public Builder setQueryResult(
+        com.google.cloud.dialogflow.cx.v3beta1.QueryResult.Builder builderForValue) {
+      if (queryResultBuilder_ == null) {
+        queryResult_ = builderForValue.build();
+        onChanged();
+      } else {
+        queryResultBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of the conversational query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+     */
+    public Builder mergeQueryResult(com.google.cloud.dialogflow.cx.v3beta1.QueryResult value) {
+      if (queryResultBuilder_ == null) {
+        if (queryResult_ != null) {
+          queryResult_ =
+              com.google.cloud.dialogflow.cx.v3beta1.QueryResult.newBuilder(queryResult_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          queryResult_ = value;
+        }
+        onChanged();
+      } else {
+        queryResultBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of the conversational query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+     */
+    public Builder clearQueryResult() {
+      if (queryResultBuilder_ == null) {
+        queryResult_ = null;
+        onChanged();
+      } else {
+        queryResult_ = null;
+        queryResultBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of the conversational query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryResult.Builder getQueryResultBuilder() {
+
+      onChanged();
+      return getQueryResultFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of the conversational query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryResultOrBuilder getQueryResultOrBuilder() {
+      if (queryResultBuilder_ != null) {
+        return queryResultBuilder_.getMessageOrBuilder();
+      } else {
+        return queryResult_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.QueryResult.getDefaultInstance()
+            : queryResult_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of the conversational query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.QueryResult,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryResult.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryResultOrBuilder>
+        getQueryResultFieldBuilder() {
+      if (queryResultBuilder_ == null) {
+        queryResultBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.QueryResult,
+                com.google.cloud.dialogflow.cx.v3beta1.QueryResult.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.QueryResultOrBuilder>(
+                getQueryResult(), getParentForChildren(), isClean());
+        queryResult_ = null;
+      }
+      return queryResultBuilder_;
+    }
+
+    private com.google.protobuf.ByteString outputAudio_ = com.google.protobuf.ByteString.EMPTY;
+    /**
+     *
+     *
+     * <pre>
+     * The audio data bytes encoded as specified in the request.
+     * Note: The output audio is generated based on the values of default platform
+     * text responses found in the
+     * [`query_result.response_messages`][google.cloud.dialogflow.cx.v3beta1.QueryResult.response_messages] field. If
+     * multiple default text responses exist, they will be concatenated when
+     * generating audio. If no default platform text responses exist, the
+     * generated audio content will be empty.
+     * In some scenarios, multiple output audio fields may be present in the
+     * response structure. In these cases, only the top-most-level audio output
+     * has content.
+     * </pre>
+     *
+     * <code>bytes output_audio = 4;</code>
+     *
+     * @return The outputAudio.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getOutputAudio() {
+      return outputAudio_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The audio data bytes encoded as specified in the request.
+     * Note: The output audio is generated based on the values of default platform
+     * text responses found in the
+     * [`query_result.response_messages`][google.cloud.dialogflow.cx.v3beta1.QueryResult.response_messages] field. If
+     * multiple default text responses exist, they will be concatenated when
+     * generating audio. If no default platform text responses exist, the
+     * generated audio content will be empty.
+     * In some scenarios, multiple output audio fields may be present in the
+     * response structure. In these cases, only the top-most-level audio output
+     * has content.
+     * </pre>
+     *
+     * <code>bytes output_audio = 4;</code>
+     *
+     * @param value The outputAudio to set.
+     * @return This builder for chaining.
+     */
+    public Builder setOutputAudio(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      outputAudio_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The audio data bytes encoded as specified in the request.
+     * Note: The output audio is generated based on the values of default platform
+     * text responses found in the
+     * [`query_result.response_messages`][google.cloud.dialogflow.cx.v3beta1.QueryResult.response_messages] field. If
+     * multiple default text responses exist, they will be concatenated when
+     * generating audio. If no default platform text responses exist, the
+     * generated audio content will be empty.
+     * In some scenarios, multiple output audio fields may be present in the
+     * response structure. In these cases, only the top-most-level audio output
+     * has content.
+     * </pre>
+     *
+     * <code>bytes output_audio = 4;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearOutputAudio() {
+
+      outputAudio_ = getDefaultInstance().getOutputAudio();
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig outputAudioConfig_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig,
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder>
+        outputAudioConfigBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The config used by the speech synthesizer to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 5;</code>
+     *
+     * @return Whether the outputAudioConfig field is set.
+     */
+    public boolean hasOutputAudioConfig() {
+      return outputAudioConfigBuilder_ != null || outputAudioConfig_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The config used by the speech synthesizer to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 5;</code>
+     *
+     * @return The outputAudioConfig.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig getOutputAudioConfig() {
+      if (outputAudioConfigBuilder_ == null) {
+        return outputAudioConfig_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.getDefaultInstance()
+            : outputAudioConfig_;
+      } else {
+        return outputAudioConfigBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The config used by the speech synthesizer to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 5;</code>
+     */
+    public Builder setOutputAudioConfig(
+        com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig value) {
+      if (outputAudioConfigBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        outputAudioConfig_ = value;
+        onChanged();
+      } else {
+        outputAudioConfigBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The config used by the speech synthesizer to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 5;</code>
+     */
+    public Builder setOutputAudioConfig(
+        com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder builderForValue) {
+      if (outputAudioConfigBuilder_ == null) {
+        outputAudioConfig_ = builderForValue.build();
+        onChanged();
+      } else {
+        outputAudioConfigBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The config used by the speech synthesizer to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 5;</code>
+     */
+    public Builder mergeOutputAudioConfig(
+        com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig value) {
+      if (outputAudioConfigBuilder_ == null) {
+        if (outputAudioConfig_ != null) {
+          outputAudioConfig_ =
+              com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.newBuilder(
+                      outputAudioConfig_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          outputAudioConfig_ = value;
+        }
+        onChanged();
+      } else {
+        outputAudioConfigBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The config used by the speech synthesizer to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 5;</code>
+     */
+    public Builder clearOutputAudioConfig() {
+      if (outputAudioConfigBuilder_ == null) {
+        outputAudioConfig_ = null;
+        onChanged();
+      } else {
+        outputAudioConfig_ = null;
+        outputAudioConfigBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The config used by the speech synthesizer to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 5;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder
+        getOutputAudioConfigBuilder() {
+
+      onChanged();
+      return getOutputAudioConfigFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The config used by the speech synthesizer to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 5;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder
+        getOutputAudioConfigOrBuilder() {
+      if (outputAudioConfigBuilder_ != null) {
+        return outputAudioConfigBuilder_.getMessageOrBuilder();
+      } else {
+        return outputAudioConfig_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.getDefaultInstance()
+            : outputAudioConfig_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The config used by the speech synthesizer to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 5;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig,
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder>
+        getOutputAudioConfigFieldBuilder() {
+      if (outputAudioConfigBuilder_ == null) {
+        outputAudioConfigBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig,
+                com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder>(
+                getOutputAudioConfig(), getParentForChildren(), isClean());
+        outputAudioConfig_ = null;
+      }
+      return outputAudioConfigBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<DetectIntentResponse> PARSER =
+      new com.google.protobuf.AbstractParser<DetectIntentResponse>() {
+        @java.lang.Override
+        public DetectIntentResponse parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new DetectIntentResponse(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<DetectIntentResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<DetectIntentResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DetectIntentResponseOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DetectIntentResponseOrBuilder.java
new file mode 100644
index 000000000..0acc80768
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/DetectIntentResponseOrBuilder.java
@@ -0,0 +1,144 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface DetectIntentResponseOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The unique identifier of the response. It can be used to
+   * locate a response in the training example set or for reporting issues.
+   * </pre>
+   *
+   * <code>string response_id = 1;</code>
+   *
+   * @return The responseId.
+   */
+  java.lang.String getResponseId();
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The unique identifier of the response. It can be used to
+   * locate a response in the training example set or for reporting issues.
+   * </pre>
+   *
+   * <code>string response_id = 1;</code>
+   *
+   * @return The bytes for responseId.
+   */
+  com.google.protobuf.ByteString getResponseIdBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The result of the conversational query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+   *
+   * @return Whether the queryResult field is set.
+   */
+  boolean hasQueryResult();
+  /**
+   *
+   *
+   * <pre>
+   * The result of the conversational query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+   *
+   * @return The queryResult.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.QueryResult getQueryResult();
+  /**
+   *
+   *
+   * <pre>
+   * The result of the conversational query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.QueryResultOrBuilder getQueryResultOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The audio data bytes encoded as specified in the request.
+   * Note: The output audio is generated based on the values of default platform
+   * text responses found in the
+   * [`query_result.response_messages`][google.cloud.dialogflow.cx.v3beta1.QueryResult.response_messages] field. If
+   * multiple default text responses exist, they will be concatenated when
+   * generating audio. If no default platform text responses exist, the
+   * generated audio content will be empty.
+   * In some scenarios, multiple output audio fields may be present in the
+   * response structure. In these cases, only the top-most-level audio output
+   * has content.
+   * </pre>
+   *
+   * <code>bytes output_audio = 4;</code>
+   *
+   * @return The outputAudio.
+   */
+  com.google.protobuf.ByteString getOutputAudio();
+
+  /**
+   *
+   *
+   * <pre>
+   * The config used by the speech synthesizer to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 5;</code>
+   *
+   * @return Whether the outputAudioConfig field is set.
+   */
+  boolean hasOutputAudioConfig();
+  /**
+   *
+   *
+   * <pre>
+   * The config used by the speech synthesizer to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 5;</code>
+   *
+   * @return The outputAudioConfig.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig getOutputAudioConfig();
+  /**
+   *
+   *
+   * <pre>
+   * The config used by the speech synthesizer to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 5;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder getOutputAudioConfigOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EntityType.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EntityType.java
new file mode 100644
index 000000000..029a4e3ca
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EntityType.java
@@ -0,0 +1,4597 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Entities are extracted from user input and represent parameters that are
+ * meaningful to your application. For example, a date range, a proper name
+ * such as a geographic location or landmark, and so on. Entities represent
+ * actionable data for your application.
+ * When you define an entity, you can also include synonyms that all map to
+ * that entity. For example, "soft drink", "soda", "pop", and so on.
+ * There are three types of entities:
+ * *   **System** - entities that are defined by the Dialogflow API for common
+ *     data types such as date, time, currency, and so on. A system entity is
+ *     represented by the `EntityType` type.
+ * *   **Custom** - entities that are defined by you that represent
+ *     actionable data that is meaningful to your application. For example,
+ *     you could define a `pizza.sauce` entity for red or white pizza sauce,
+ *     a `pizza.cheese` entity for the different types of cheese on a pizza,
+ *     a `pizza.topping` entity for different toppings, and so on. A custom
+ *     entity is represented by the `EntityType` type.
+ * *   **User** - entities that are built for an individual user such as
+ *     favorites, preferences, playlists, and so on. A user entity is
+ *     represented by the [SessionEntityType][google.cloud.dialogflow.cx.v3beta1.SessionEntityType] type.
+ * For more information about entity types, see the [Dialogflow
+ * documentation](https://cloud.google.com/dialogflow/docs/entities-overview).
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.EntityType}
+ */
+public final class EntityType extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.EntityType)
+    EntityTypeOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use EntityType.newBuilder() to construct.
+  private EntityType(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private EntityType() {
+    name_ = "";
+    displayName_ = "";
+    kind_ = 0;
+    autoExpansionMode_ = 0;
+    entities_ = java.util.Collections.emptyList();
+    excludedPhrases_ = java.util.Collections.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new EntityType();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private EntityType(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              displayName_ = s;
+              break;
+            }
+          case 24:
+            {
+              int rawValue = input.readEnum();
+
+              kind_ = rawValue;
+              break;
+            }
+          case 32:
+            {
+              int rawValue = input.readEnum();
+
+              autoExpansionMode_ = rawValue;
+              break;
+            }
+          case 42:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                entities_ =
+                    new java.util.ArrayList<
+                        com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              entities_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.parser(),
+                      extensionRegistry));
+              break;
+            }
+          case 50:
+            {
+              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
+                excludedPhrases_ =
+                    new java.util.ArrayList<
+                        com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase>();
+                mutable_bitField0_ |= 0x00000002;
+              }
+              excludedPhrases_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase.parser(),
+                      extensionRegistry));
+              break;
+            }
+          case 56:
+            {
+              enableFuzzyExtraction_ = input.readBool();
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        entities_ = java.util.Collections.unmodifiableList(entities_);
+      }
+      if (((mutable_bitField0_ & 0x00000002) != 0)) {
+        excludedPhrases_ = java.util.Collections.unmodifiableList(excludedPhrases_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.class,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder.class);
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Represents kinds of entities.
+   * </pre>
+   *
+   * Protobuf enum {@code google.cloud.dialogflow.cx.v3beta1.EntityType.Kind}
+   */
+  public enum Kind implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     *
+     *
+     * <pre>
+     * Not specified. This value should be never used.
+     * </pre>
+     *
+     * <code>KIND_UNSPECIFIED = 0;</code>
+     */
+    KIND_UNSPECIFIED(0),
+    /**
+     *
+     *
+     * <pre>
+     * Map entity types allow mapping of a group of synonyms to a canonical
+     * value.
+     * </pre>
+     *
+     * <code>KIND_MAP = 1;</code>
+     */
+    KIND_MAP(1),
+    /**
+     *
+     *
+     * <pre>
+     * List entity types contain a set of entries that do not map to canonical
+     * values. However, list entity types can contain references to other entity
+     * types (with or without aliases).
+     * </pre>
+     *
+     * <code>KIND_LIST = 2;</code>
+     */
+    KIND_LIST(2),
+    /**
+     *
+     *
+     * <pre>
+     * Regexp entity types allow to specify regular expressions in entries
+     * values.
+     * </pre>
+     *
+     * <code>KIND_REGEXP = 3;</code>
+     */
+    KIND_REGEXP(3),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     *
+     *
+     * <pre>
+     * Not specified. This value should be never used.
+     * </pre>
+     *
+     * <code>KIND_UNSPECIFIED = 0;</code>
+     */
+    public static final int KIND_UNSPECIFIED_VALUE = 0;
+    /**
+     *
+     *
+     * <pre>
+     * Map entity types allow mapping of a group of synonyms to a canonical
+     * value.
+     * </pre>
+     *
+     * <code>KIND_MAP = 1;</code>
+     */
+    public static final int KIND_MAP_VALUE = 1;
+    /**
+     *
+     *
+     * <pre>
+     * List entity types contain a set of entries that do not map to canonical
+     * values. However, list entity types can contain references to other entity
+     * types (with or without aliases).
+     * </pre>
+     *
+     * <code>KIND_LIST = 2;</code>
+     */
+    public static final int KIND_LIST_VALUE = 2;
+    /**
+     *
+     *
+     * <pre>
+     * Regexp entity types allow to specify regular expressions in entries
+     * values.
+     * </pre>
+     *
+     * <code>KIND_REGEXP = 3;</code>
+     */
+    public static final int KIND_REGEXP_VALUE = 3;
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static Kind valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static Kind forNumber(int value) {
+      switch (value) {
+        case 0:
+          return KIND_UNSPECIFIED;
+        case 1:
+          return KIND_MAP;
+        case 2:
+          return KIND_LIST;
+        case 3:
+          return KIND_REGEXP;
+        default:
+          return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap<Kind> internalGetValueMap() {
+      return internalValueMap;
+    }
+
+    private static final com.google.protobuf.Internal.EnumLiteMap<Kind> internalValueMap =
+        new com.google.protobuf.Internal.EnumLiteMap<Kind>() {
+          public Kind findValueByNumber(int number) {
+            return Kind.forNumber(number);
+          }
+        };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+
+    public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+      return getDescriptor();
+    }
+
+    public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityType.getDescriptor()
+          .getEnumTypes()
+          .get(0);
+    }
+
+    private static final Kind[] VALUES = values();
+
+    public static Kind valueOf(com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private Kind(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:google.cloud.dialogflow.cx.v3beta1.EntityType.Kind)
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Represents different entity type expansion modes. Automated expansion
+   * allows an agent to recognize values that have not been explicitly listed in
+   * the entity (for example, new kinds of shopping list items).
+   * </pre>
+   *
+   * Protobuf enum {@code google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode}
+   */
+  public enum AutoExpansionMode implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     *
+     *
+     * <pre>
+     * Auto expansion disabled for the entity.
+     * </pre>
+     *
+     * <code>AUTO_EXPANSION_MODE_UNSPECIFIED = 0;</code>
+     */
+    AUTO_EXPANSION_MODE_UNSPECIFIED(0),
+    /**
+     *
+     *
+     * <pre>
+     * Allows an agent to recognize values that have not been explicitly
+     * listed in the entity.
+     * </pre>
+     *
+     * <code>AUTO_EXPANSION_MODE_DEFAULT = 1;</code>
+     */
+    AUTO_EXPANSION_MODE_DEFAULT(1),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     *
+     *
+     * <pre>
+     * Auto expansion disabled for the entity.
+     * </pre>
+     *
+     * <code>AUTO_EXPANSION_MODE_UNSPECIFIED = 0;</code>
+     */
+    public static final int AUTO_EXPANSION_MODE_UNSPECIFIED_VALUE = 0;
+    /**
+     *
+     *
+     * <pre>
+     * Allows an agent to recognize values that have not been explicitly
+     * listed in the entity.
+     * </pre>
+     *
+     * <code>AUTO_EXPANSION_MODE_DEFAULT = 1;</code>
+     */
+    public static final int AUTO_EXPANSION_MODE_DEFAULT_VALUE = 1;
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static AutoExpansionMode valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static AutoExpansionMode forNumber(int value) {
+      switch (value) {
+        case 0:
+          return AUTO_EXPANSION_MODE_UNSPECIFIED;
+        case 1:
+          return AUTO_EXPANSION_MODE_DEFAULT;
+        default:
+          return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap<AutoExpansionMode>
+        internalGetValueMap() {
+      return internalValueMap;
+    }
+
+    private static final com.google.protobuf.Internal.EnumLiteMap<AutoExpansionMode>
+        internalValueMap =
+            new com.google.protobuf.Internal.EnumLiteMap<AutoExpansionMode>() {
+              public AutoExpansionMode findValueByNumber(int number) {
+                return AutoExpansionMode.forNumber(number);
+              }
+            };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+
+    public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+      return getDescriptor();
+    }
+
+    public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityType.getDescriptor()
+          .getEnumTypes()
+          .get(1);
+    }
+
+    private static final AutoExpansionMode[] VALUES = values();
+
+    public static AutoExpansionMode valueOf(
+        com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private AutoExpansionMode(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode)
+  }
+
+  public interface EntityOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.EntityType.Entity)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * <pre>
+     * Required. The primary value associated with this entity entry.
+     * For example, if the entity type is *vegetable*, the value could be
+     * *scallions*.
+     * For `KIND_MAP` entity types:
+     * *   A canonical value to be used in place of synonyms.
+     * For `KIND_LIST` entity types:
+     * *   A string that can contain references to other entity types (with or
+     *     without aliases).
+     * </pre>
+     *
+     * <code>string value = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The value.
+     */
+    java.lang.String getValue();
+    /**
+     *
+     *
+     * <pre>
+     * Required. The primary value associated with this entity entry.
+     * For example, if the entity type is *vegetable*, the value could be
+     * *scallions*.
+     * For `KIND_MAP` entity types:
+     * *   A canonical value to be used in place of synonyms.
+     * For `KIND_LIST` entity types:
+     * *   A string that can contain references to other entity types (with or
+     *     without aliases).
+     * </pre>
+     *
+     * <code>string value = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for value.
+     */
+    com.google.protobuf.ByteString getValueBytes();
+
+    /**
+     *
+     *
+     * <pre>
+     * Required. A collection of value synonyms. For example, if the entity type
+     * is *vegetable*, and `value` is *scallions*, a synonym could be *green
+     * onions*.
+     * For `KIND_LIST` entity types:
+     * *   This collection must contain exactly one synonym equal to `value`.
+     * </pre>
+     *
+     * <code>repeated string synonyms = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return A list containing the synonyms.
+     */
+    java.util.List<java.lang.String> getSynonymsList();
+    /**
+     *
+     *
+     * <pre>
+     * Required. A collection of value synonyms. For example, if the entity type
+     * is *vegetable*, and `value` is *scallions*, a synonym could be *green
+     * onions*.
+     * For `KIND_LIST` entity types:
+     * *   This collection must contain exactly one synonym equal to `value`.
+     * </pre>
+     *
+     * <code>repeated string synonyms = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The count of synonyms.
+     */
+    int getSynonymsCount();
+    /**
+     *
+     *
+     * <pre>
+     * Required. A collection of value synonyms. For example, if the entity type
+     * is *vegetable*, and `value` is *scallions*, a synonym could be *green
+     * onions*.
+     * For `KIND_LIST` entity types:
+     * *   This collection must contain exactly one synonym equal to `value`.
+     * </pre>
+     *
+     * <code>repeated string synonyms = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param index The index of the element to return.
+     * @return The synonyms at the given index.
+     */
+    java.lang.String getSynonyms(int index);
+    /**
+     *
+     *
+     * <pre>
+     * Required. A collection of value synonyms. For example, if the entity type
+     * is *vegetable*, and `value` is *scallions*, a synonym could be *green
+     * onions*.
+     * For `KIND_LIST` entity types:
+     * *   This collection must contain exactly one synonym equal to `value`.
+     * </pre>
+     *
+     * <code>repeated string synonyms = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param index The index of the value to return.
+     * @return The bytes of the synonyms at the given index.
+     */
+    com.google.protobuf.ByteString getSynonymsBytes(int index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * An **entity entry** for an associated entity type.
+   * Next Id = 8
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.EntityType.Entity}
+   */
+  public static final class Entity extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.EntityType.Entity)
+      EntityOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use Entity.newBuilder() to construct.
+    private Entity(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+
+    private Entity() {
+      value_ = "";
+      synonyms_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new Entity();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private Entity(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      int mutable_bitField0_ = 0;
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+
+                value_ = s;
+                break;
+              }
+            case 18:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                  synonyms_ = new com.google.protobuf.LazyStringArrayList();
+                  mutable_bitField0_ |= 0x00000001;
+                }
+                synonyms_.add(s);
+                break;
+              }
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        if (((mutable_bitField0_ & 0x00000001) != 0)) {
+          synonyms_ = synonyms_.getUnmodifiableView();
+        }
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_Entity_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_Entity_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.class,
+              com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.Builder.class);
+    }
+
+    public static final int VALUE_FIELD_NUMBER = 1;
+    private volatile java.lang.Object value_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The primary value associated with this entity entry.
+     * For example, if the entity type is *vegetable*, the value could be
+     * *scallions*.
+     * For `KIND_MAP` entity types:
+     * *   A canonical value to be used in place of synonyms.
+     * For `KIND_LIST` entity types:
+     * *   A string that can contain references to other entity types (with or
+     *     without aliases).
+     * </pre>
+     *
+     * <code>string value = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The value.
+     */
+    @java.lang.Override
+    public java.lang.String getValue() {
+      java.lang.Object ref = value_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        value_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The primary value associated with this entity entry.
+     * For example, if the entity type is *vegetable*, the value could be
+     * *scallions*.
+     * For `KIND_MAP` entity types:
+     * *   A canonical value to be used in place of synonyms.
+     * For `KIND_LIST` entity types:
+     * *   A string that can contain references to other entity types (with or
+     *     without aliases).
+     * </pre>
+     *
+     * <code>string value = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for value.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getValueBytes() {
+      java.lang.Object ref = value_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        value_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    public static final int SYNONYMS_FIELD_NUMBER = 2;
+    private com.google.protobuf.LazyStringList synonyms_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. A collection of value synonyms. For example, if the entity type
+     * is *vegetable*, and `value` is *scallions*, a synonym could be *green
+     * onions*.
+     * For `KIND_LIST` entity types:
+     * *   This collection must contain exactly one synonym equal to `value`.
+     * </pre>
+     *
+     * <code>repeated string synonyms = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return A list containing the synonyms.
+     */
+    public com.google.protobuf.ProtocolStringList getSynonymsList() {
+      return synonyms_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A collection of value synonyms. For example, if the entity type
+     * is *vegetable*, and `value` is *scallions*, a synonym could be *green
+     * onions*.
+     * For `KIND_LIST` entity types:
+     * *   This collection must contain exactly one synonym equal to `value`.
+     * </pre>
+     *
+     * <code>repeated string synonyms = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The count of synonyms.
+     */
+    public int getSynonymsCount() {
+      return synonyms_.size();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A collection of value synonyms. For example, if the entity type
+     * is *vegetable*, and `value` is *scallions*, a synonym could be *green
+     * onions*.
+     * For `KIND_LIST` entity types:
+     * *   This collection must contain exactly one synonym equal to `value`.
+     * </pre>
+     *
+     * <code>repeated string synonyms = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param index The index of the element to return.
+     * @return The synonyms at the given index.
+     */
+    public java.lang.String getSynonyms(int index) {
+      return synonyms_.get(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A collection of value synonyms. For example, if the entity type
+     * is *vegetable*, and `value` is *scallions*, a synonym could be *green
+     * onions*.
+     * For `KIND_LIST` entity types:
+     * *   This collection must contain exactly one synonym equal to `value`.
+     * </pre>
+     *
+     * <code>repeated string synonyms = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param index The index of the value to return.
+     * @return The bytes of the synonyms at the given index.
+     */
+    public com.google.protobuf.ByteString getSynonymsBytes(int index) {
+      return synonyms_.getByteString(index);
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (!getValueBytes().isEmpty()) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, value_);
+      }
+      for (int i = 0; i < synonyms_.size(); i++) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 2, synonyms_.getRaw(i));
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (!getValueBytes().isEmpty()) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, value_);
+      }
+      {
+        int dataSize = 0;
+        for (int i = 0; i < synonyms_.size(); i++) {
+          dataSize += computeStringSizeNoTag(synonyms_.getRaw(i));
+        }
+        size += dataSize;
+        size += 1 * getSynonymsList().size();
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity other =
+          (com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity) obj;
+
+      if (!getValue().equals(other.getValue())) return false;
+      if (!getSynonymsList().equals(other.getSynonymsList())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + VALUE_FIELD_NUMBER;
+      hash = (53 * hash) + getValue().hashCode();
+      if (getSynonymsCount() > 0) {
+        hash = (37 * hash) + SYNONYMS_FIELD_NUMBER;
+        hash = (53 * hash) + getSynonymsList().hashCode();
+      }
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity parseDelimitedFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity parseDelimitedFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * An **entity entry** for an associated entity type.
+     * Next Id = 8
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.EntityType.Entity}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.EntityType.Entity)
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.EntityOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_Entity_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_Entity_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.class,
+                com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.Builder.class);
+      }
+
+      // Construct using com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        value_ = "";
+
+        synonyms_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+        bitField0_ = (bitField0_ & ~0x00000001);
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_Entity_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity build() {
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity buildPartial() {
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity result =
+            new com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity(this);
+        int from_bitField0_ = bitField0_;
+        result.value_ = value_;
+        if (((bitField0_ & 0x00000001) != 0)) {
+          synonyms_ = synonyms_.getUnmodifiableView();
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.synonyms_ = synonyms_;
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity) {
+          return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity other) {
+        if (other == com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.getDefaultInstance())
+          return this;
+        if (!other.getValue().isEmpty()) {
+          value_ = other.value_;
+          onChanged();
+        }
+        if (!other.synonyms_.isEmpty()) {
+          if (synonyms_.isEmpty()) {
+            synonyms_ = other.synonyms_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureSynonymsIsMutable();
+            synonyms_.addAll(other.synonyms_);
+          }
+          onChanged();
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity) e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private int bitField0_;
+
+      private java.lang.Object value_ = "";
+      /**
+       *
+       *
+       * <pre>
+       * Required. The primary value associated with this entity entry.
+       * For example, if the entity type is *vegetable*, the value could be
+       * *scallions*.
+       * For `KIND_MAP` entity types:
+       * *   A canonical value to be used in place of synonyms.
+       * For `KIND_LIST` entity types:
+       * *   A string that can contain references to other entity types (with or
+       *     without aliases).
+       * </pre>
+       *
+       * <code>string value = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return The value.
+       */
+      public java.lang.String getValue() {
+        java.lang.Object ref = value_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          value_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The primary value associated with this entity entry.
+       * For example, if the entity type is *vegetable*, the value could be
+       * *scallions*.
+       * For `KIND_MAP` entity types:
+       * *   A canonical value to be used in place of synonyms.
+       * For `KIND_LIST` entity types:
+       * *   A string that can contain references to other entity types (with or
+       *     without aliases).
+       * </pre>
+       *
+       * <code>string value = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return The bytes for value.
+       */
+      public com.google.protobuf.ByteString getValueBytes() {
+        java.lang.Object ref = value_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          value_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The primary value associated with this entity entry.
+       * For example, if the entity type is *vegetable*, the value could be
+       * *scallions*.
+       * For `KIND_MAP` entity types:
+       * *   A canonical value to be used in place of synonyms.
+       * For `KIND_LIST` entity types:
+       * *   A string that can contain references to other entity types (with or
+       *     without aliases).
+       * </pre>
+       *
+       * <code>string value = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param value The value to set.
+       * @return This builder for chaining.
+       */
+      public Builder setValue(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+
+        value_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The primary value associated with this entity entry.
+       * For example, if the entity type is *vegetable*, the value could be
+       * *scallions*.
+       * For `KIND_MAP` entity types:
+       * *   A canonical value to be used in place of synonyms.
+       * For `KIND_LIST` entity types:
+       * *   A string that can contain references to other entity types (with or
+       *     without aliases).
+       * </pre>
+       *
+       * <code>string value = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearValue() {
+
+        value_ = getDefaultInstance().getValue();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The primary value associated with this entity entry.
+       * For example, if the entity type is *vegetable*, the value could be
+       * *scallions*.
+       * For `KIND_MAP` entity types:
+       * *   A canonical value to be used in place of synonyms.
+       * For `KIND_LIST` entity types:
+       * *   A string that can contain references to other entity types (with or
+       *     without aliases).
+       * </pre>
+       *
+       * <code>string value = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param value The bytes for value to set.
+       * @return This builder for chaining.
+       */
+      public Builder setValueBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+
+        value_ = value;
+        onChanged();
+        return this;
+      }
+
+      private com.google.protobuf.LazyStringList synonyms_ =
+          com.google.protobuf.LazyStringArrayList.EMPTY;
+
+      private void ensureSynonymsIsMutable() {
+        if (!((bitField0_ & 0x00000001) != 0)) {
+          synonyms_ = new com.google.protobuf.LazyStringArrayList(synonyms_);
+          bitField0_ |= 0x00000001;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. A collection of value synonyms. For example, if the entity type
+       * is *vegetable*, and `value` is *scallions*, a synonym could be *green
+       * onions*.
+       * For `KIND_LIST` entity types:
+       * *   This collection must contain exactly one synonym equal to `value`.
+       * </pre>
+       *
+       * <code>repeated string synonyms = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return A list containing the synonyms.
+       */
+      public com.google.protobuf.ProtocolStringList getSynonymsList() {
+        return synonyms_.getUnmodifiableView();
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. A collection of value synonyms. For example, if the entity type
+       * is *vegetable*, and `value` is *scallions*, a synonym could be *green
+       * onions*.
+       * For `KIND_LIST` entity types:
+       * *   This collection must contain exactly one synonym equal to `value`.
+       * </pre>
+       *
+       * <code>repeated string synonyms = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return The count of synonyms.
+       */
+      public int getSynonymsCount() {
+        return synonyms_.size();
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. A collection of value synonyms. For example, if the entity type
+       * is *vegetable*, and `value` is *scallions*, a synonym could be *green
+       * onions*.
+       * For `KIND_LIST` entity types:
+       * *   This collection must contain exactly one synonym equal to `value`.
+       * </pre>
+       *
+       * <code>repeated string synonyms = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param index The index of the element to return.
+       * @return The synonyms at the given index.
+       */
+      public java.lang.String getSynonyms(int index) {
+        return synonyms_.get(index);
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. A collection of value synonyms. For example, if the entity type
+       * is *vegetable*, and `value` is *scallions*, a synonym could be *green
+       * onions*.
+       * For `KIND_LIST` entity types:
+       * *   This collection must contain exactly one synonym equal to `value`.
+       * </pre>
+       *
+       * <code>repeated string synonyms = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param index The index of the value to return.
+       * @return The bytes of the synonyms at the given index.
+       */
+      public com.google.protobuf.ByteString getSynonymsBytes(int index) {
+        return synonyms_.getByteString(index);
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. A collection of value synonyms. For example, if the entity type
+       * is *vegetable*, and `value` is *scallions*, a synonym could be *green
+       * onions*.
+       * For `KIND_LIST` entity types:
+       * *   This collection must contain exactly one synonym equal to `value`.
+       * </pre>
+       *
+       * <code>repeated string synonyms = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param index The index to set the value at.
+       * @param value The synonyms to set.
+       * @return This builder for chaining.
+       */
+      public Builder setSynonyms(int index, java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureSynonymsIsMutable();
+        synonyms_.set(index, value);
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. A collection of value synonyms. For example, if the entity type
+       * is *vegetable*, and `value` is *scallions*, a synonym could be *green
+       * onions*.
+       * For `KIND_LIST` entity types:
+       * *   This collection must contain exactly one synonym equal to `value`.
+       * </pre>
+       *
+       * <code>repeated string synonyms = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param value The synonyms to add.
+       * @return This builder for chaining.
+       */
+      public Builder addSynonyms(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureSynonymsIsMutable();
+        synonyms_.add(value);
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. A collection of value synonyms. For example, if the entity type
+       * is *vegetable*, and `value` is *scallions*, a synonym could be *green
+       * onions*.
+       * For `KIND_LIST` entity types:
+       * *   This collection must contain exactly one synonym equal to `value`.
+       * </pre>
+       *
+       * <code>repeated string synonyms = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param values The synonyms to add.
+       * @return This builder for chaining.
+       */
+      public Builder addAllSynonyms(java.lang.Iterable<java.lang.String> values) {
+        ensureSynonymsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, synonyms_);
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. A collection of value synonyms. For example, if the entity type
+       * is *vegetable*, and `value` is *scallions*, a synonym could be *green
+       * onions*.
+       * For `KIND_LIST` entity types:
+       * *   This collection must contain exactly one synonym equal to `value`.
+       * </pre>
+       *
+       * <code>repeated string synonyms = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearSynonyms() {
+        synonyms_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. A collection of value synonyms. For example, if the entity type
+       * is *vegetable*, and `value` is *scallions*, a synonym could be *green
+       * onions*.
+       * For `KIND_LIST` entity types:
+       * *   This collection must contain exactly one synonym equal to `value`.
+       * </pre>
+       *
+       * <code>repeated string synonyms = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param value The bytes of the synonyms to add.
+       * @return This builder for chaining.
+       */
+      public Builder addSynonymsBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+        ensureSynonymsIsMutable();
+        synonyms_.add(value);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.EntityType.Entity)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.EntityType.Entity)
+    private static final com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity();
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<Entity> PARSER =
+        new com.google.protobuf.AbstractParser<Entity>() {
+          @java.lang.Override
+          public Entity parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new Entity(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser<Entity> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<Entity> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public interface ExcludedPhraseOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * <pre>
+     * Required. The word or phrase to be excluded.
+     * </pre>
+     *
+     * <code>string value = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The value.
+     */
+    java.lang.String getValue();
+    /**
+     *
+     *
+     * <pre>
+     * Required. The word or phrase to be excluded.
+     * </pre>
+     *
+     * <code>string value = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for value.
+     */
+    com.google.protobuf.ByteString getValueBytes();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * An excluded entity phrase that should not be matched.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase}
+   */
+  public static final class ExcludedPhrase extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase)
+      ExcludedPhraseOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use ExcludedPhrase.newBuilder() to construct.
+    private ExcludedPhrase(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+
+    private ExcludedPhrase() {
+      value_ = "";
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new ExcludedPhrase();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private ExcludedPhrase(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+
+                value_ = s;
+                break;
+              }
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_ExcludedPhrase_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_ExcludedPhrase_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase.class,
+              com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase.Builder.class);
+    }
+
+    public static final int VALUE_FIELD_NUMBER = 1;
+    private volatile java.lang.Object value_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The word or phrase to be excluded.
+     * </pre>
+     *
+     * <code>string value = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The value.
+     */
+    @java.lang.Override
+    public java.lang.String getValue() {
+      java.lang.Object ref = value_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        value_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The word or phrase to be excluded.
+     * </pre>
+     *
+     * <code>string value = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for value.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getValueBytes() {
+      java.lang.Object ref = value_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        value_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (!getValueBytes().isEmpty()) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, value_);
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (!getValueBytes().isEmpty()) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, value_);
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase other =
+          (com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase) obj;
+
+      if (!getValue().equals(other.getValue())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + VALUE_FIELD_NUMBER;
+      hash = (53 * hash) + getValue().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase parseFrom(
+        byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * An excluded entity phrase that should not be matched.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase)
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhraseOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_ExcludedPhrase_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_ExcludedPhrase_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase.class,
+                com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase.Builder.class);
+      }
+
+      // Construct using
+      // com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        value_ = "";
+
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_ExcludedPhrase_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase
+          getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase
+            .getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase build() {
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase buildPartial() {
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase result =
+            new com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase(this);
+        result.value_ = value_;
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase) {
+          return mergeFrom(
+              (com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase other) {
+        if (other
+            == com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase
+                .getDefaultInstance()) return this;
+        if (!other.getValue().isEmpty()) {
+          value_ = other.value_;
+          onChanged();
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase)
+                  e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private java.lang.Object value_ = "";
+      /**
+       *
+       *
+       * <pre>
+       * Required. The word or phrase to be excluded.
+       * </pre>
+       *
+       * <code>string value = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return The value.
+       */
+      public java.lang.String getValue() {
+        java.lang.Object ref = value_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          value_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The word or phrase to be excluded.
+       * </pre>
+       *
+       * <code>string value = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return The bytes for value.
+       */
+      public com.google.protobuf.ByteString getValueBytes() {
+        java.lang.Object ref = value_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          value_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The word or phrase to be excluded.
+       * </pre>
+       *
+       * <code>string value = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param value The value to set.
+       * @return This builder for chaining.
+       */
+      public Builder setValue(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+
+        value_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The word or phrase to be excluded.
+       * </pre>
+       *
+       * <code>string value = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearValue() {
+
+        value_ = getDefaultInstance().getValue();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The word or phrase to be excluded.
+       * </pre>
+       *
+       * <code>string value = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param value The bytes for value to set.
+       * @return This builder for chaining.
+       */
+      public Builder setValueBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+
+        value_ = value;
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase)
+    private static final com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase();
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<ExcludedPhrase> PARSER =
+        new com.google.protobuf.AbstractParser<ExcludedPhrase>() {
+          @java.lang.Override
+          public ExcludedPhrase parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new ExcludedPhrase(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser<ExcludedPhrase> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<ExcludedPhrase> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the entity type.
+   * Required for [EntityTypes.UpdateEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.UpdateEntityType].
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the entity type.
+   * Required for [EntityTypes.UpdateEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.UpdateEntityType].
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int DISPLAY_NAME_FIELD_NUMBER = 2;
+  private volatile java.lang.Object displayName_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the entity type, unique within the agent.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The displayName.
+   */
+  @java.lang.Override
+  public java.lang.String getDisplayName() {
+    java.lang.Object ref = displayName_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      displayName_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the entity type, unique within the agent.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for displayName.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getDisplayNameBytes() {
+    java.lang.Object ref = displayName_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      displayName_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int KIND_FIELD_NUMBER = 3;
+  private int kind_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. Indicates the kind of entity type.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.EntityType.Kind kind = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The enum numeric value on the wire for kind.
+   */
+  @java.lang.Override
+  public int getKindValue() {
+    return kind_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. Indicates the kind of entity type.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.EntityType.Kind kind = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The kind.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.EntityType.Kind getKind() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.dialogflow.cx.v3beta1.EntityType.Kind result =
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.Kind.valueOf(kind_);
+    return result == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.EntityType.Kind.UNRECOGNIZED
+        : result;
+  }
+
+  public static final int AUTO_EXPANSION_MODE_FIELD_NUMBER = 4;
+  private int autoExpansionMode_;
+  /**
+   *
+   *
+   * <pre>
+   * Indicates whether the entity type can be automatically expanded.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode auto_expansion_mode = 4;
+   * </code>
+   *
+   * @return The enum numeric value on the wire for autoExpansionMode.
+   */
+  @java.lang.Override
+  public int getAutoExpansionModeValue() {
+    return autoExpansionMode_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Indicates whether the entity type can be automatically expanded.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode auto_expansion_mode = 4;
+   * </code>
+   *
+   * @return The autoExpansionMode.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode
+      getAutoExpansionMode() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode result =
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode.valueOf(
+            autoExpansionMode_);
+    return result == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode.UNRECOGNIZED
+        : result;
+  }
+
+  public static final int ENTITIES_FIELD_NUMBER = 5;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity> entities_;
+  /**
+   *
+   *
+   * <pre>
+   * The collection of entity entries associated with the entity type.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity>
+      getEntitiesList() {
+    return entities_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The collection of entity entries associated with the entity type.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.EntityType.EntityOrBuilder>
+      getEntitiesOrBuilderList() {
+    return entities_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The collection of entity entries associated with the entity type.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+   */
+  @java.lang.Override
+  public int getEntitiesCount() {
+    return entities_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The collection of entity entries associated with the entity type.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity getEntities(int index) {
+    return entities_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The collection of entity entries associated with the entity type.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.EntityType.EntityOrBuilder getEntitiesOrBuilder(
+      int index) {
+    return entities_.get(index);
+  }
+
+  public static final int EXCLUDED_PHRASES_FIELD_NUMBER = 6;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase>
+      excludedPhrases_;
+  /**
+   *
+   *
+   * <pre>
+   * Collection of exceptional words and phrases that shouldn't be matched.
+   * For example, if you have a size entity type with entry `giant`(an
+   * adjective), you might consider adding `giants`(a noun) as an exclusion.
+   * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+   * entities and excluded phrases should be mutually exclusive.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase>
+      getExcludedPhrasesList() {
+    return excludedPhrases_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Collection of exceptional words and phrases that shouldn't be matched.
+   * For example, if you have a size entity type with entry `giant`(an
+   * adjective), you might consider adding `giants`(a noun) as an exclusion.
+   * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+   * entities and excluded phrases should be mutually exclusive.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<
+          ? extends com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhraseOrBuilder>
+      getExcludedPhrasesOrBuilderList() {
+    return excludedPhrases_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Collection of exceptional words and phrases that shouldn't be matched.
+   * For example, if you have a size entity type with entry `giant`(an
+   * adjective), you might consider adding `giants`(a noun) as an exclusion.
+   * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+   * entities and excluded phrases should be mutually exclusive.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+   * </code>
+   */
+  @java.lang.Override
+  public int getExcludedPhrasesCount() {
+    return excludedPhrases_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Collection of exceptional words and phrases that shouldn't be matched.
+   * For example, if you have a size entity type with entry `giant`(an
+   * adjective), you might consider adding `giants`(a noun) as an exclusion.
+   * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+   * entities and excluded phrases should be mutually exclusive.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase getExcludedPhrases(
+      int index) {
+    return excludedPhrases_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Collection of exceptional words and phrases that shouldn't be matched.
+   * For example, if you have a size entity type with entry `giant`(an
+   * adjective), you might consider adding `giants`(a noun) as an exclusion.
+   * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+   * entities and excluded phrases should be mutually exclusive.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhraseOrBuilder
+      getExcludedPhrasesOrBuilder(int index) {
+    return excludedPhrases_.get(index);
+  }
+
+  public static final int ENABLE_FUZZY_EXTRACTION_FIELD_NUMBER = 7;
+  private boolean enableFuzzyExtraction_;
+  /**
+   *
+   *
+   * <pre>
+   * Enables fuzzy entity extraction during classification.
+   * </pre>
+   *
+   * <code>bool enable_fuzzy_extraction = 7;</code>
+   *
+   * @return The enableFuzzyExtraction.
+   */
+  @java.lang.Override
+  public boolean getEnableFuzzyExtraction() {
+    return enableFuzzyExtraction_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (!getDisplayNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, displayName_);
+    }
+    if (kind_
+        != com.google.cloud.dialogflow.cx.v3beta1.EntityType.Kind.KIND_UNSPECIFIED.getNumber()) {
+      output.writeEnum(3, kind_);
+    }
+    if (autoExpansionMode_
+        != com.google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode
+            .AUTO_EXPANSION_MODE_UNSPECIFIED
+            .getNumber()) {
+      output.writeEnum(4, autoExpansionMode_);
+    }
+    for (int i = 0; i < entities_.size(); i++) {
+      output.writeMessage(5, entities_.get(i));
+    }
+    for (int i = 0; i < excludedPhrases_.size(); i++) {
+      output.writeMessage(6, excludedPhrases_.get(i));
+    }
+    if (enableFuzzyExtraction_ != false) {
+      output.writeBool(7, enableFuzzyExtraction_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (!getDisplayNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, displayName_);
+    }
+    if (kind_
+        != com.google.cloud.dialogflow.cx.v3beta1.EntityType.Kind.KIND_UNSPECIFIED.getNumber()) {
+      size += com.google.protobuf.CodedOutputStream.computeEnumSize(3, kind_);
+    }
+    if (autoExpansionMode_
+        != com.google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode
+            .AUTO_EXPANSION_MODE_UNSPECIFIED
+            .getNumber()) {
+      size += com.google.protobuf.CodedOutputStream.computeEnumSize(4, autoExpansionMode_);
+    }
+    for (int i = 0; i < entities_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, entities_.get(i));
+    }
+    for (int i = 0; i < excludedPhrases_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(6, excludedPhrases_.get(i));
+    }
+    if (enableFuzzyExtraction_ != false) {
+      size += com.google.protobuf.CodedOutputStream.computeBoolSize(7, enableFuzzyExtraction_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.EntityType)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.EntityType other =
+        (com.google.cloud.dialogflow.cx.v3beta1.EntityType) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!getDisplayName().equals(other.getDisplayName())) return false;
+    if (kind_ != other.kind_) return false;
+    if (autoExpansionMode_ != other.autoExpansionMode_) return false;
+    if (!getEntitiesList().equals(other.getEntitiesList())) return false;
+    if (!getExcludedPhrasesList().equals(other.getExcludedPhrasesList())) return false;
+    if (getEnableFuzzyExtraction() != other.getEnableFuzzyExtraction()) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + DISPLAY_NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getDisplayName().hashCode();
+    hash = (37 * hash) + KIND_FIELD_NUMBER;
+    hash = (53 * hash) + kind_;
+    hash = (37 * hash) + AUTO_EXPANSION_MODE_FIELD_NUMBER;
+    hash = (53 * hash) + autoExpansionMode_;
+    if (getEntitiesCount() > 0) {
+      hash = (37 * hash) + ENTITIES_FIELD_NUMBER;
+      hash = (53 * hash) + getEntitiesList().hashCode();
+    }
+    if (getExcludedPhrasesCount() > 0) {
+      hash = (37 * hash) + EXCLUDED_PHRASES_FIELD_NUMBER;
+      hash = (53 * hash) + getExcludedPhrasesList().hashCode();
+    }
+    hash = (37 * hash) + ENABLE_FUZZY_EXTRACTION_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnableFuzzyExtraction());
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EntityType parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EntityType parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EntityType parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EntityType parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EntityType parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EntityType parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EntityType parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EntityType parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EntityType parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EntityType parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EntityType parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EntityType parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.cx.v3beta1.EntityType prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Entities are extracted from user input and represent parameters that are
+   * meaningful to your application. For example, a date range, a proper name
+   * such as a geographic location or landmark, and so on. Entities represent
+   * actionable data for your application.
+   * When you define an entity, you can also include synonyms that all map to
+   * that entity. For example, "soft drink", "soda", "pop", and so on.
+   * There are three types of entities:
+   * *   **System** - entities that are defined by the Dialogflow API for common
+   *     data types such as date, time, currency, and so on. A system entity is
+   *     represented by the `EntityType` type.
+   * *   **Custom** - entities that are defined by you that represent
+   *     actionable data that is meaningful to your application. For example,
+   *     you could define a `pizza.sauce` entity for red or white pizza sauce,
+   *     a `pizza.cheese` entity for the different types of cheese on a pizza,
+   *     a `pizza.topping` entity for different toppings, and so on. A custom
+   *     entity is represented by the `EntityType` type.
+   * *   **User** - entities that are built for an individual user such as
+   *     favorites, preferences, playlists, and so on. A user entity is
+   *     represented by the [SessionEntityType][google.cloud.dialogflow.cx.v3beta1.SessionEntityType] type.
+   * For more information about entity types, see the [Dialogflow
+   * documentation](https://cloud.google.com/dialogflow/docs/entities-overview).
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.EntityType}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.EntityType)
+      com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.EntityType.class,
+              com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.EntityType.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getEntitiesFieldBuilder();
+        getExcludedPhrasesFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      displayName_ = "";
+
+      kind_ = 0;
+
+      autoExpansionMode_ = 0;
+
+      if (entitiesBuilder_ == null) {
+        entities_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        entitiesBuilder_.clear();
+      }
+      if (excludedPhrasesBuilder_ == null) {
+        excludedPhrases_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000002);
+      } else {
+        excludedPhrasesBuilder_.clear();
+      }
+      enableFuzzyExtraction_ = false;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityType.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType build() {
+      com.google.cloud.dialogflow.cx.v3beta1.EntityType result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.EntityType result =
+          new com.google.cloud.dialogflow.cx.v3beta1.EntityType(this);
+      int from_bitField0_ = bitField0_;
+      result.name_ = name_;
+      result.displayName_ = displayName_;
+      result.kind_ = kind_;
+      result.autoExpansionMode_ = autoExpansionMode_;
+      if (entitiesBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          entities_ = java.util.Collections.unmodifiableList(entities_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.entities_ = entities_;
+      } else {
+        result.entities_ = entitiesBuilder_.build();
+      }
+      if (excludedPhrasesBuilder_ == null) {
+        if (((bitField0_ & 0x00000002) != 0)) {
+          excludedPhrases_ = java.util.Collections.unmodifiableList(excludedPhrases_);
+          bitField0_ = (bitField0_ & ~0x00000002);
+        }
+        result.excludedPhrases_ = excludedPhrases_;
+      } else {
+        result.excludedPhrases_ = excludedPhrasesBuilder_.build();
+      }
+      result.enableFuzzyExtraction_ = enableFuzzyExtraction_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.EntityType) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.EntityType) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.EntityType other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.EntityType.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getDisplayName().isEmpty()) {
+        displayName_ = other.displayName_;
+        onChanged();
+      }
+      if (other.kind_ != 0) {
+        setKindValue(other.getKindValue());
+      }
+      if (other.autoExpansionMode_ != 0) {
+        setAutoExpansionModeValue(other.getAutoExpansionModeValue());
+      }
+      if (entitiesBuilder_ == null) {
+        if (!other.entities_.isEmpty()) {
+          if (entities_.isEmpty()) {
+            entities_ = other.entities_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureEntitiesIsMutable();
+            entities_.addAll(other.entities_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.entities_.isEmpty()) {
+          if (entitiesBuilder_.isEmpty()) {
+            entitiesBuilder_.dispose();
+            entitiesBuilder_ = null;
+            entities_ = other.entities_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            entitiesBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getEntitiesFieldBuilder()
+                    : null;
+          } else {
+            entitiesBuilder_.addAllMessages(other.entities_);
+          }
+        }
+      }
+      if (excludedPhrasesBuilder_ == null) {
+        if (!other.excludedPhrases_.isEmpty()) {
+          if (excludedPhrases_.isEmpty()) {
+            excludedPhrases_ = other.excludedPhrases_;
+            bitField0_ = (bitField0_ & ~0x00000002);
+          } else {
+            ensureExcludedPhrasesIsMutable();
+            excludedPhrases_.addAll(other.excludedPhrases_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.excludedPhrases_.isEmpty()) {
+          if (excludedPhrasesBuilder_.isEmpty()) {
+            excludedPhrasesBuilder_.dispose();
+            excludedPhrasesBuilder_ = null;
+            excludedPhrases_ = other.excludedPhrases_;
+            bitField0_ = (bitField0_ & ~0x00000002);
+            excludedPhrasesBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getExcludedPhrasesFieldBuilder()
+                    : null;
+          } else {
+            excludedPhrasesBuilder_.addAllMessages(other.excludedPhrases_);
+          }
+        }
+      }
+      if (other.getEnableFuzzyExtraction() != false) {
+        setEnableFuzzyExtraction(other.getEnableFuzzyExtraction());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.EntityType parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.EntityType) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the entity type.
+     * Required for [EntityTypes.UpdateEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.UpdateEntityType].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the entity type.
+     * Required for [EntityTypes.UpdateEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.UpdateEntityType].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the entity type.
+     * Required for [EntityTypes.UpdateEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.UpdateEntityType].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the entity type.
+     * Required for [EntityTypes.UpdateEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.UpdateEntityType].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the entity type.
+     * Required for [EntityTypes.UpdateEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.UpdateEntityType].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object displayName_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the entity type, unique within the agent.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The displayName.
+     */
+    public java.lang.String getDisplayName() {
+      java.lang.Object ref = displayName_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        displayName_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the entity type, unique within the agent.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for displayName.
+     */
+    public com.google.protobuf.ByteString getDisplayNameBytes() {
+      java.lang.Object ref = displayName_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        displayName_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the entity type, unique within the agent.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The displayName to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDisplayName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      displayName_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the entity type, unique within the agent.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearDisplayName() {
+
+      displayName_ = getDefaultInstance().getDisplayName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the entity type, unique within the agent.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The bytes for displayName to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDisplayNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      displayName_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int kind_ = 0;
+    /**
+     *
+     *
+     * <pre>
+     * Required. Indicates the kind of entity type.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType.Kind kind = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The enum numeric value on the wire for kind.
+     */
+    @java.lang.Override
+    public int getKindValue() {
+      return kind_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Indicates the kind of entity type.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType.Kind kind = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @param value The enum numeric value on the wire for kind to set.
+     * @return This builder for chaining.
+     */
+    public Builder setKindValue(int value) {
+
+      kind_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Indicates the kind of entity type.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType.Kind kind = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The kind.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.Kind getKind() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.dialogflow.cx.v3beta1.EntityType.Kind result =
+          com.google.cloud.dialogflow.cx.v3beta1.EntityType.Kind.valueOf(kind_);
+      return result == null
+          ? com.google.cloud.dialogflow.cx.v3beta1.EntityType.Kind.UNRECOGNIZED
+          : result;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Indicates the kind of entity type.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType.Kind kind = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @param value The kind to set.
+     * @return This builder for chaining.
+     */
+    public Builder setKind(com.google.cloud.dialogflow.cx.v3beta1.EntityType.Kind value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      kind_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Indicates the kind of entity type.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType.Kind kind = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearKind() {
+
+      kind_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private int autoExpansionMode_ = 0;
+    /**
+     *
+     *
+     * <pre>
+     * Indicates whether the entity type can be automatically expanded.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode auto_expansion_mode = 4;
+     * </code>
+     *
+     * @return The enum numeric value on the wire for autoExpansionMode.
+     */
+    @java.lang.Override
+    public int getAutoExpansionModeValue() {
+      return autoExpansionMode_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates whether the entity type can be automatically expanded.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode auto_expansion_mode = 4;
+     * </code>
+     *
+     * @param value The enum numeric value on the wire for autoExpansionMode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAutoExpansionModeValue(int value) {
+
+      autoExpansionMode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates whether the entity type can be automatically expanded.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode auto_expansion_mode = 4;
+     * </code>
+     *
+     * @return The autoExpansionMode.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode
+        getAutoExpansionMode() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode result =
+          com.google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode.valueOf(
+              autoExpansionMode_);
+      return result == null
+          ? com.google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode.UNRECOGNIZED
+          : result;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates whether the entity type can be automatically expanded.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode auto_expansion_mode = 4;
+     * </code>
+     *
+     * @param value The autoExpansionMode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAutoExpansionMode(
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      autoExpansionMode_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates whether the entity type can be automatically expanded.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode auto_expansion_mode = 4;
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearAutoExpansionMode() {
+
+      autoExpansionMode_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity> entities_ =
+        java.util.Collections.emptyList();
+
+    private void ensureEntitiesIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        entities_ =
+            new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity>(
+                entities_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.EntityOrBuilder>
+        entitiesBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * The collection of entity entries associated with the entity type.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity>
+        getEntitiesList() {
+      if (entitiesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(entities_);
+      } else {
+        return entitiesBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of entity entries associated with the entity type.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+     */
+    public int getEntitiesCount() {
+      if (entitiesBuilder_ == null) {
+        return entities_.size();
+      } else {
+        return entitiesBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of entity entries associated with the entity type.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity getEntities(int index) {
+      if (entitiesBuilder_ == null) {
+        return entities_.get(index);
+      } else {
+        return entitiesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of entity entries associated with the entity type.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+     */
+    public Builder setEntities(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity value) {
+      if (entitiesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEntitiesIsMutable();
+        entities_.set(index, value);
+        onChanged();
+      } else {
+        entitiesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of entity entries associated with the entity type.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+     */
+    public Builder setEntities(
+        int index,
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.Builder builderForValue) {
+      if (entitiesBuilder_ == null) {
+        ensureEntitiesIsMutable();
+        entities_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        entitiesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of entity entries associated with the entity type.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+     */
+    public Builder addEntities(com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity value) {
+      if (entitiesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEntitiesIsMutable();
+        entities_.add(value);
+        onChanged();
+      } else {
+        entitiesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of entity entries associated with the entity type.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+     */
+    public Builder addEntities(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity value) {
+      if (entitiesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEntitiesIsMutable();
+        entities_.add(index, value);
+        onChanged();
+      } else {
+        entitiesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of entity entries associated with the entity type.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+     */
+    public Builder addEntities(
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.Builder builderForValue) {
+      if (entitiesBuilder_ == null) {
+        ensureEntitiesIsMutable();
+        entities_.add(builderForValue.build());
+        onChanged();
+      } else {
+        entitiesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of entity entries associated with the entity type.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+     */
+    public Builder addEntities(
+        int index,
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.Builder builderForValue) {
+      if (entitiesBuilder_ == null) {
+        ensureEntitiesIsMutable();
+        entities_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        entitiesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of entity entries associated with the entity type.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+     */
+    public Builder addAllEntities(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity>
+            values) {
+      if (entitiesBuilder_ == null) {
+        ensureEntitiesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, entities_);
+        onChanged();
+      } else {
+        entitiesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of entity entries associated with the entity type.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+     */
+    public Builder clearEntities() {
+      if (entitiesBuilder_ == null) {
+        entities_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        entitiesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of entity entries associated with the entity type.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+     */
+    public Builder removeEntities(int index) {
+      if (entitiesBuilder_ == null) {
+        ensureEntitiesIsMutable();
+        entities_.remove(index);
+        onChanged();
+      } else {
+        entitiesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of entity entries associated with the entity type.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.Builder getEntitiesBuilder(
+        int index) {
+      return getEntitiesFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of entity entries associated with the entity type.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.EntityOrBuilder getEntitiesOrBuilder(
+        int index) {
+      if (entitiesBuilder_ == null) {
+        return entities_.get(index);
+      } else {
+        return entitiesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of entity entries associated with the entity type.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+     */
+    public java.util.List<
+            ? extends com.google.cloud.dialogflow.cx.v3beta1.EntityType.EntityOrBuilder>
+        getEntitiesOrBuilderList() {
+      if (entitiesBuilder_ != null) {
+        return entitiesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(entities_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of entity entries associated with the entity type.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.Builder addEntitiesBuilder() {
+      return getEntitiesFieldBuilder()
+          .addBuilder(
+              com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of entity entries associated with the entity type.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.Builder addEntitiesBuilder(
+        int index) {
+      return getEntitiesFieldBuilder()
+          .addBuilder(
+              index, com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of entity entries associated with the entity type.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.Builder>
+        getEntitiesBuilderList() {
+      return getEntitiesFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.EntityOrBuilder>
+        getEntitiesFieldBuilder() {
+      if (entitiesBuilder_ == null) {
+        entitiesBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity,
+                com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.EntityType.EntityOrBuilder>(
+                entities_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+        entities_ = null;
+      }
+      return entitiesBuilder_;
+    }
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase>
+        excludedPhrases_ = java.util.Collections.emptyList();
+
+    private void ensureExcludedPhrasesIsMutable() {
+      if (!((bitField0_ & 0x00000002) != 0)) {
+        excludedPhrases_ =
+            new java.util.ArrayList<
+                com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase>(excludedPhrases_);
+        bitField0_ |= 0x00000002;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhraseOrBuilder>
+        excludedPhrasesBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * Collection of exceptional words and phrases that shouldn't be matched.
+     * For example, if you have a size entity type with entry `giant`(an
+     * adjective), you might consider adding `giants`(a noun) as an exclusion.
+     * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+     * entities and excluded phrases should be mutually exclusive.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase>
+        getExcludedPhrasesList() {
+      if (excludedPhrasesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(excludedPhrases_);
+      } else {
+        return excludedPhrasesBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Collection of exceptional words and phrases that shouldn't be matched.
+     * For example, if you have a size entity type with entry `giant`(an
+     * adjective), you might consider adding `giants`(a noun) as an exclusion.
+     * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+     * entities and excluded phrases should be mutually exclusive.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+     * </code>
+     */
+    public int getExcludedPhrasesCount() {
+      if (excludedPhrasesBuilder_ == null) {
+        return excludedPhrases_.size();
+      } else {
+        return excludedPhrasesBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Collection of exceptional words and phrases that shouldn't be matched.
+     * For example, if you have a size entity type with entry `giant`(an
+     * adjective), you might consider adding `giants`(a noun) as an exclusion.
+     * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+     * entities and excluded phrases should be mutually exclusive.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase getExcludedPhrases(
+        int index) {
+      if (excludedPhrasesBuilder_ == null) {
+        return excludedPhrases_.get(index);
+      } else {
+        return excludedPhrasesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Collection of exceptional words and phrases that shouldn't be matched.
+     * For example, if you have a size entity type with entry `giant`(an
+     * adjective), you might consider adding `giants`(a noun) as an exclusion.
+     * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+     * entities and excluded phrases should be mutually exclusive.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+     * </code>
+     */
+    public Builder setExcludedPhrases(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase value) {
+      if (excludedPhrasesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureExcludedPhrasesIsMutable();
+        excludedPhrases_.set(index, value);
+        onChanged();
+      } else {
+        excludedPhrasesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Collection of exceptional words and phrases that shouldn't be matched.
+     * For example, if you have a size entity type with entry `giant`(an
+     * adjective), you might consider adding `giants`(a noun) as an exclusion.
+     * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+     * entities and excluded phrases should be mutually exclusive.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+     * </code>
+     */
+    public Builder setExcludedPhrases(
+        int index,
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase.Builder builderForValue) {
+      if (excludedPhrasesBuilder_ == null) {
+        ensureExcludedPhrasesIsMutable();
+        excludedPhrases_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        excludedPhrasesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Collection of exceptional words and phrases that shouldn't be matched.
+     * For example, if you have a size entity type with entry `giant`(an
+     * adjective), you might consider adding `giants`(a noun) as an exclusion.
+     * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+     * entities and excluded phrases should be mutually exclusive.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+     * </code>
+     */
+    public Builder addExcludedPhrases(
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase value) {
+      if (excludedPhrasesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureExcludedPhrasesIsMutable();
+        excludedPhrases_.add(value);
+        onChanged();
+      } else {
+        excludedPhrasesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Collection of exceptional words and phrases that shouldn't be matched.
+     * For example, if you have a size entity type with entry `giant`(an
+     * adjective), you might consider adding `giants`(a noun) as an exclusion.
+     * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+     * entities and excluded phrases should be mutually exclusive.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+     * </code>
+     */
+    public Builder addExcludedPhrases(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase value) {
+      if (excludedPhrasesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureExcludedPhrasesIsMutable();
+        excludedPhrases_.add(index, value);
+        onChanged();
+      } else {
+        excludedPhrasesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Collection of exceptional words and phrases that shouldn't be matched.
+     * For example, if you have a size entity type with entry `giant`(an
+     * adjective), you might consider adding `giants`(a noun) as an exclusion.
+     * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+     * entities and excluded phrases should be mutually exclusive.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+     * </code>
+     */
+    public Builder addExcludedPhrases(
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase.Builder builderForValue) {
+      if (excludedPhrasesBuilder_ == null) {
+        ensureExcludedPhrasesIsMutable();
+        excludedPhrases_.add(builderForValue.build());
+        onChanged();
+      } else {
+        excludedPhrasesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Collection of exceptional words and phrases that shouldn't be matched.
+     * For example, if you have a size entity type with entry `giant`(an
+     * adjective), you might consider adding `giants`(a noun) as an exclusion.
+     * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+     * entities and excluded phrases should be mutually exclusive.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+     * </code>
+     */
+    public Builder addExcludedPhrases(
+        int index,
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase.Builder builderForValue) {
+      if (excludedPhrasesBuilder_ == null) {
+        ensureExcludedPhrasesIsMutable();
+        excludedPhrases_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        excludedPhrasesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Collection of exceptional words and phrases that shouldn't be matched.
+     * For example, if you have a size entity type with entry `giant`(an
+     * adjective), you might consider adding `giants`(a noun) as an exclusion.
+     * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+     * entities and excluded phrases should be mutually exclusive.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+     * </code>
+     */
+    public Builder addAllExcludedPhrases(
+        java.lang.Iterable<
+                ? extends com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase>
+            values) {
+      if (excludedPhrasesBuilder_ == null) {
+        ensureExcludedPhrasesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, excludedPhrases_);
+        onChanged();
+      } else {
+        excludedPhrasesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Collection of exceptional words and phrases that shouldn't be matched.
+     * For example, if you have a size entity type with entry `giant`(an
+     * adjective), you might consider adding `giants`(a noun) as an exclusion.
+     * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+     * entities and excluded phrases should be mutually exclusive.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+     * </code>
+     */
+    public Builder clearExcludedPhrases() {
+      if (excludedPhrasesBuilder_ == null) {
+        excludedPhrases_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000002);
+        onChanged();
+      } else {
+        excludedPhrasesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Collection of exceptional words and phrases that shouldn't be matched.
+     * For example, if you have a size entity type with entry `giant`(an
+     * adjective), you might consider adding `giants`(a noun) as an exclusion.
+     * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+     * entities and excluded phrases should be mutually exclusive.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+     * </code>
+     */
+    public Builder removeExcludedPhrases(int index) {
+      if (excludedPhrasesBuilder_ == null) {
+        ensureExcludedPhrasesIsMutable();
+        excludedPhrases_.remove(index);
+        onChanged();
+      } else {
+        excludedPhrasesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Collection of exceptional words and phrases that shouldn't be matched.
+     * For example, if you have a size entity type with entry `giant`(an
+     * adjective), you might consider adding `giants`(a noun) as an exclusion.
+     * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+     * entities and excluded phrases should be mutually exclusive.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase.Builder
+        getExcludedPhrasesBuilder(int index) {
+      return getExcludedPhrasesFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Collection of exceptional words and phrases that shouldn't be matched.
+     * For example, if you have a size entity type with entry `giant`(an
+     * adjective), you might consider adding `giants`(a noun) as an exclusion.
+     * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+     * entities and excluded phrases should be mutually exclusive.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhraseOrBuilder
+        getExcludedPhrasesOrBuilder(int index) {
+      if (excludedPhrasesBuilder_ == null) {
+        return excludedPhrases_.get(index);
+      } else {
+        return excludedPhrasesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Collection of exceptional words and phrases that shouldn't be matched.
+     * For example, if you have a size entity type with entry `giant`(an
+     * adjective), you might consider adding `giants`(a noun) as an exclusion.
+     * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+     * entities and excluded phrases should be mutually exclusive.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+     * </code>
+     */
+    public java.util.List<
+            ? extends com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhraseOrBuilder>
+        getExcludedPhrasesOrBuilderList() {
+      if (excludedPhrasesBuilder_ != null) {
+        return excludedPhrasesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(excludedPhrases_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Collection of exceptional words and phrases that shouldn't be matched.
+     * For example, if you have a size entity type with entry `giant`(an
+     * adjective), you might consider adding `giants`(a noun) as an exclusion.
+     * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+     * entities and excluded phrases should be mutually exclusive.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase.Builder
+        addExcludedPhrasesBuilder() {
+      return getExcludedPhrasesFieldBuilder()
+          .addBuilder(
+              com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase
+                  .getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Collection of exceptional words and phrases that shouldn't be matched.
+     * For example, if you have a size entity type with entry `giant`(an
+     * adjective), you might consider adding `giants`(a noun) as an exclusion.
+     * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+     * entities and excluded phrases should be mutually exclusive.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase.Builder
+        addExcludedPhrasesBuilder(int index) {
+      return getExcludedPhrasesFieldBuilder()
+          .addBuilder(
+              index,
+              com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase
+                  .getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Collection of exceptional words and phrases that shouldn't be matched.
+     * For example, if you have a size entity type with entry `giant`(an
+     * adjective), you might consider adding `giants`(a noun) as an exclusion.
+     * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+     * entities and excluded phrases should be mutually exclusive.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase.Builder>
+        getExcludedPhrasesBuilderList() {
+      return getExcludedPhrasesFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhraseOrBuilder>
+        getExcludedPhrasesFieldBuilder() {
+      if (excludedPhrasesBuilder_ == null) {
+        excludedPhrasesBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase,
+                com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhraseOrBuilder>(
+                excludedPhrases_,
+                ((bitField0_ & 0x00000002) != 0),
+                getParentForChildren(),
+                isClean());
+        excludedPhrases_ = null;
+      }
+      return excludedPhrasesBuilder_;
+    }
+
+    private boolean enableFuzzyExtraction_;
+    /**
+     *
+     *
+     * <pre>
+     * Enables fuzzy entity extraction during classification.
+     * </pre>
+     *
+     * <code>bool enable_fuzzy_extraction = 7;</code>
+     *
+     * @return The enableFuzzyExtraction.
+     */
+    @java.lang.Override
+    public boolean getEnableFuzzyExtraction() {
+      return enableFuzzyExtraction_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Enables fuzzy entity extraction during classification.
+     * </pre>
+     *
+     * <code>bool enable_fuzzy_extraction = 7;</code>
+     *
+     * @param value The enableFuzzyExtraction to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEnableFuzzyExtraction(boolean value) {
+
+      enableFuzzyExtraction_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Enables fuzzy entity extraction during classification.
+     * </pre>
+     *
+     * <code>bool enable_fuzzy_extraction = 7;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearEnableFuzzyExtraction() {
+
+      enableFuzzyExtraction_ = false;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.EntityType)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.EntityType)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.EntityType DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.EntityType();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EntityType getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<EntityType> PARSER =
+      new com.google.protobuf.AbstractParser<EntityType>() {
+        @java.lang.Override
+        public EntityType parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new EntityType(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<EntityType> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<EntityType> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.EntityType getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EntityTypeName.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EntityTypeName.java
new file mode 100644
index 000000000..22cc944ab
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EntityTypeName.java
@@ -0,0 +1,243 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+/** AUTO-GENERATED DOCUMENTATION AND CLASS */
+@javax.annotation.Generated("by GAPIC protoc plugin")
+public class EntityTypeName implements ResourceName {
+
+  private static final PathTemplate PATH_TEMPLATE =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/agents/{agent}/entityTypes/{entity_type}");
+
+  private volatile Map<String, String> fieldValuesMap;
+
+  private final String project;
+  private final String location;
+  private final String agent;
+  private final String entityType;
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public String getAgent() {
+    return agent;
+  }
+
+  public String getEntityType() {
+    return entityType;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  private EntityTypeName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    agent = Preconditions.checkNotNull(builder.getAgent());
+    entityType = Preconditions.checkNotNull(builder.getEntityType());
+  }
+
+  public static EntityTypeName of(
+      String project, String location, String agent, String entityType) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setEntityType(entityType)
+        .build();
+  }
+
+  public static String format(String project, String location, String agent, String entityType) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setEntityType(entityType)
+        .build()
+        .toString();
+  }
+
+  public static EntityTypeName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    Map<String, String> matchMap =
+        PATH_TEMPLATE.validatedMatch(
+            formattedString, "EntityTypeName.parse: formattedString not in valid format");
+    return of(
+        matchMap.get("project"),
+        matchMap.get("location"),
+        matchMap.get("agent"),
+        matchMap.get("entity_type"));
+  }
+
+  public static List<EntityTypeName> parseList(List<String> formattedStrings) {
+    List<EntityTypeName> list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List<String> toStringList(List<EntityTypeName> values) {
+    List<String> list = new ArrayList<String>(values.size());
+    for (EntityTypeName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PATH_TEMPLATE.matches(formattedString);
+  }
+
+  public Map<String, String> getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder<String, String> fieldMapBuilder = ImmutableMap.builder();
+          fieldMapBuilder.put("project", project);
+          fieldMapBuilder.put("location", location);
+          fieldMapBuilder.put("agent", agent);
+          fieldMapBuilder.put("entityType", entityType);
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return PATH_TEMPLATE.instantiate(
+        "project", project, "location", location, "agent", agent, "entity_type", entityType);
+  }
+
+  /** Builder for EntityTypeName. */
+  public static class Builder {
+
+    private String project;
+    private String location;
+    private String agent;
+    private String entityType;
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getAgent() {
+      return agent;
+    }
+
+    public String getEntityType() {
+      return entityType;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public Builder setAgent(String agent) {
+      this.agent = agent;
+      return this;
+    }
+
+    public Builder setEntityType(String entityType) {
+      this.entityType = entityType;
+      return this;
+    }
+
+    private Builder() {}
+
+    private Builder(EntityTypeName entityTypeName) {
+      project = entityTypeName.project;
+      location = entityTypeName.location;
+      agent = entityTypeName.agent;
+      entityType = entityTypeName.entityType;
+    }
+
+    public EntityTypeName build() {
+      return new EntityTypeName(this);
+    }
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o instanceof EntityTypeName) {
+      EntityTypeName that = (EntityTypeName) o;
+      return (this.project.equals(that.project))
+          && (this.location.equals(that.location))
+          && (this.agent.equals(that.agent))
+          && (this.entityType.equals(that.entityType));
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= project.hashCode();
+    h *= 1000003;
+    h ^= location.hashCode();
+    h *= 1000003;
+    h ^= agent.hashCode();
+    h *= 1000003;
+    h ^= entityType.hashCode();
+    return h;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EntityTypeOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EntityTypeOrBuilder.java
new file mode 100644
index 000000000..6c2cdc66c
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EntityTypeOrBuilder.java
@@ -0,0 +1,287 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface EntityTypeOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.EntityType)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the entity type.
+   * Required for [EntityTypes.UpdateEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.UpdateEntityType].
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the entity type.
+   * Required for [EntityTypes.UpdateEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.UpdateEntityType].
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the entity type, unique within the agent.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The displayName.
+   */
+  java.lang.String getDisplayName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the entity type, unique within the agent.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for displayName.
+   */
+  com.google.protobuf.ByteString getDisplayNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. Indicates the kind of entity type.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.EntityType.Kind kind = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The enum numeric value on the wire for kind.
+   */
+  int getKindValue();
+  /**
+   *
+   *
+   * <pre>
+   * Required. Indicates the kind of entity type.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.EntityType.Kind kind = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The kind.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.EntityType.Kind getKind();
+
+  /**
+   *
+   *
+   * <pre>
+   * Indicates whether the entity type can be automatically expanded.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode auto_expansion_mode = 4;
+   * </code>
+   *
+   * @return The enum numeric value on the wire for autoExpansionMode.
+   */
+  int getAutoExpansionModeValue();
+  /**
+   *
+   *
+   * <pre>
+   * Indicates whether the entity type can be automatically expanded.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode auto_expansion_mode = 4;
+   * </code>
+   *
+   * @return The autoExpansionMode.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.EntityType.AutoExpansionMode getAutoExpansionMode();
+
+  /**
+   *
+   *
+   * <pre>
+   * The collection of entity entries associated with the entity type.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity> getEntitiesList();
+  /**
+   *
+   *
+   * <pre>
+   * The collection of entity entries associated with the entity type.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity getEntities(int index);
+  /**
+   *
+   *
+   * <pre>
+   * The collection of entity entries associated with the entity type.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+   */
+  int getEntitiesCount();
+  /**
+   *
+   *
+   * <pre>
+   * The collection of entity entries associated with the entity type.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.EntityType.EntityOrBuilder>
+      getEntitiesOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * The collection of entity entries associated with the entity type.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 5;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.EntityType.EntityOrBuilder getEntitiesOrBuilder(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * Collection of exceptional words and phrases that shouldn't be matched.
+   * For example, if you have a size entity type with entry `giant`(an
+   * adjective), you might consider adding `giants`(a noun) as an exclusion.
+   * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+   * entities and excluded phrases should be mutually exclusive.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+   * </code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase>
+      getExcludedPhrasesList();
+  /**
+   *
+   *
+   * <pre>
+   * Collection of exceptional words and phrases that shouldn't be matched.
+   * For example, if you have a size entity type with entry `giant`(an
+   * adjective), you might consider adding `giants`(a noun) as an exclusion.
+   * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+   * entities and excluded phrases should be mutually exclusive.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase getExcludedPhrases(int index);
+  /**
+   *
+   *
+   * <pre>
+   * Collection of exceptional words and phrases that shouldn't be matched.
+   * For example, if you have a size entity type with entry `giant`(an
+   * adjective), you might consider adding `giants`(a noun) as an exclusion.
+   * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+   * entities and excluded phrases should be mutually exclusive.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+   * </code>
+   */
+  int getExcludedPhrasesCount();
+  /**
+   *
+   *
+   * <pre>
+   * Collection of exceptional words and phrases that shouldn't be matched.
+   * For example, if you have a size entity type with entry `giant`(an
+   * adjective), you might consider adding `giants`(a noun) as an exclusion.
+   * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+   * entities and excluded phrases should be mutually exclusive.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+   * </code>
+   */
+  java.util.List<
+          ? extends com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhraseOrBuilder>
+      getExcludedPhrasesOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * Collection of exceptional words and phrases that shouldn't be matched.
+   * For example, if you have a size entity type with entry `giant`(an
+   * adjective), you might consider adding `giants`(a noun) as an exclusion.
+   * If the kind of entity type is `KIND_MAP`, then the phrases specified by
+   * entities and excluded phrases should be mutually exclusive.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhrase excluded_phrases = 6;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.EntityType.ExcludedPhraseOrBuilder
+      getExcludedPhrasesOrBuilder(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * Enables fuzzy entity extraction during classification.
+   * </pre>
+   *
+   * <code>bool enable_fuzzy_extraction = 7;</code>
+   *
+   * @return The enableFuzzyExtraction.
+   */
+  boolean getEnableFuzzyExtraction();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EntityTypeProto.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EntityTypeProto.java
new file mode 100644
index 000000000..2aa97ffe8
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EntityTypeProto.java
@@ -0,0 +1,272 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public final class EntityTypeProto {
+  private EntityTypeProto() {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistryLite registry) {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions((com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_Entity_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_Entity_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_ExcludedPhrase_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_ExcludedPhrase_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListEntityTypesRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListEntityTypesRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListEntityTypesResponse_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListEntityTypesResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_GetEntityTypeRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_GetEntityTypeRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_CreateEntityTypeRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_CreateEntityTypeRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateEntityTypeRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateEntityTypeRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteEntityTypeRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteEntityTypeRequest_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
+    return descriptor;
+  }
+
+  private static com.google.protobuf.Descriptors.FileDescriptor descriptor;
+
+  static {
+    java.lang.String[] descriptorData = {
+      "\n4google/cloud/dialogflow/cx/v3beta1/ent"
+          + "ity_type.proto\022\"google.cloud.dialogflow."
+          + "cx.v3beta1\032\034google/api/annotations.proto"
+          + "\032\027google/api/client.proto\032\037google/api/fi"
+          + "eld_behavior.proto\032\031google/api/resource."
+          + "proto\032\033google/protobuf/empty.proto\032 goog"
+          + "le/protobuf/field_mask.proto\"\236\006\n\nEntityT"
+          + "ype\022\014\n\004name\030\001 \001(\t\022\031\n\014display_name\030\002 \001(\tB"
+          + "\003\340A\002\022F\n\004kind\030\003 \001(\01623.google.cloud.dialog"
+          + "flow.cx.v3beta1.EntityType.KindB\003\340A\002\022]\n\023"
+          + "auto_expansion_mode\030\004 \001(\0162@.google.cloud"
+          + ".dialogflow.cx.v3beta1.EntityType.AutoEx"
+          + "pansionMode\022G\n\010entities\030\005 \003(\01325.google.c"
+          + "loud.dialogflow.cx.v3beta1.EntityType.En"
+          + "tity\022W\n\020excluded_phrases\030\006 \003(\0132=.google."
+          + "cloud.dialogflow.cx.v3beta1.EntityType.E"
+          + "xcludedPhrase\022\037\n\027enable_fuzzy_extraction"
+          + "\030\007 \001(\010\0323\n\006Entity\022\022\n\005value\030\001 \001(\tB\003\340A\002\022\025\n\010"
+          + "synonyms\030\002 \003(\tB\003\340A\002\032$\n\016ExcludedPhrase\022\022\n"
+          + "\005value\030\001 \001(\tB\003\340A\002\"J\n\004Kind\022\024\n\020KIND_UNSPEC"
+          + "IFIED\020\000\022\014\n\010KIND_MAP\020\001\022\r\n\tKIND_LIST\020\002\022\017\n\013"
+          + "KIND_REGEXP\020\003\"Y\n\021AutoExpansionMode\022#\n\037AU"
+          + "TO_EXPANSION_MODE_UNSPECIFIED\020\000\022\037\n\033AUTO_"
+          + "EXPANSION_MODE_DEFAULT\020\001:{\352Ax\n$dialogflo"
+          + "w.googleapis.com/EntityType\022Pprojects/{p"
+          + "roject}/locations/{location}/agents/{age"
+          + "nt}/entityTypes/{entity_type}\"\224\001\n\026ListEn"
+          + "tityTypesRequest\022<\n\006parent\030\001 \001(\tB,\340A\002\372A&"
+          + "\022$dialogflow.googleapis.com/EntityType\022\025"
+          + "\n\rlanguage_code\030\002 \001(\t\022\021\n\tpage_size\030\003 \001(\005"
+          + "\022\022\n\npage_token\030\004 \001(\t\"x\n\027ListEntityTypesR"
+          + "esponse\022D\n\014entity_types\030\001 \003(\0132..google.c"
+          + "loud.dialogflow.cx.v3beta1.EntityType\022\027\n"
+          + "\017next_page_token\030\002 \001(\t\"i\n\024GetEntityTypeR"
+          + "equest\022:\n\004name\030\001 \001(\tB,\340A\002\372A&\n$dialogflow"
+          + ".googleapis.com/EntityType\022\025\n\rlanguage_c"
+          + "ode\030\002 \001(\t\"\270\001\n\027CreateEntityTypeRequest\022<\n"
+          + "\006parent\030\001 \001(\tB,\340A\002\372A&\022$dialogflow.google"
+          + "apis.com/EntityType\022H\n\013entity_type\030\002 \001(\013"
+          + "2..google.cloud.dialogflow.cx.v3beta1.En"
+          + "tityTypeB\003\340A\002\022\025\n\rlanguage_code\030\003 \001(\t\"\253\001\n"
+          + "\027UpdateEntityTypeRequest\022H\n\013entity_type\030"
+          + "\001 \001(\0132..google.cloud.dialogflow.cx.v3bet"
+          + "a1.EntityTypeB\003\340A\002\022\025\n\rlanguage_code\030\002 \001("
+          + "\t\022/\n\013update_mask\030\003 \001(\0132\032.google.protobuf"
+          + ".FieldMask\"U\n\027DeleteEntityTypeRequest\022:\n"
+          + "\004name\030\001 \001(\tB,\340A\002\372A&\n$dialogflow.googleap"
+          + "is.com/EntityType2\315\t\n\013EntityTypes\022\332\001\n\017Li"
+          + "stEntityTypes\022:.google.cloud.dialogflow."
+          + "cx.v3beta1.ListEntityTypesRequest\032;.goog"
+          + "le.cloud.dialogflow.cx.v3beta1.ListEntit"
+          + "yTypesResponse\"N\202\323\344\223\002?\022=/v3beta1/{parent"
+          + "=projects/*/locations/*/agents/*}/entity"
+          + "Types\332A\006parent\022\307\001\n\rGetEntityType\0228.googl"
+          + "e.cloud.dialogflow.cx.v3beta1.GetEntityT"
+          + "ypeRequest\032..google.cloud.dialogflow.cx."
+          + "v3beta1.EntityType\"L\202\323\344\223\002?\022=/v3beta1/{na"
+          + "me=projects/*/locations/*/agents/*/entit"
+          + "yTypes/*}\332A\004name\022\350\001\n\020CreateEntityType\022;."
+          + "google.cloud.dialogflow.cx.v3beta1.Creat"
+          + "eEntityTypeRequest\032..google.cloud.dialog"
+          + "flow.cx.v3beta1.EntityType\"g\202\323\344\223\002L\"=/v3b"
+          + "eta1/{parent=projects/*/locations/*/agen"
+          + "ts/*}/entityTypes:\013entity_type\332A\022parent,"
+          + "entity_type\022\371\001\n\020UpdateEntityType\022;.googl"
+          + "e.cloud.dialogflow.cx.v3beta1.UpdateEnti"
+          + "tyTypeRequest\032..google.cloud.dialogflow."
+          + "cx.v3beta1.EntityType\"x\202\323\344\223\002X2I/v3beta1/"
+          + "{entity_type.name=projects/*/locations/*"
+          + "/agents/*/entityTypes/*}:\013entity_type\332A\027"
+          + "entity_type,update_mask\022\265\001\n\020DeleteEntity"
+          + "Type\022;.google.cloud.dialogflow.cx.v3beta"
+          + "1.DeleteEntityTypeRequest\032\026.google.proto"
+          + "buf.Empty\"L\202\323\344\223\002?*=/v3beta1/{name=projec"
+          + "ts/*/locations/*/agents/*/entityTypes/*}"
+          + "\332A\004name\032x\312A\031dialogflow.googleapis.com\322AY"
+          + "https://www.googleapis.com/auth/cloud-pl"
+          + "atform,https://www.googleapis.com/auth/d"
+          + "ialogflowB\256\001\n&com.google.cloud.dialogflo"
+          + "w.cx.v3beta1B\017EntityTypeProtoP\001ZDgoogle."
+          + "golang.org/genproto/googleapis/cloud/dia"
+          + "logflow/cx/v3beta1;cx\370\001\001\242\002\002DF\252\002\"Google.C"
+          + "loud.Dialogflow.Cx.V3Beta1b\006proto3"
+    };
+    descriptor =
+        com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
+            descriptorData,
+            new com.google.protobuf.Descriptors.FileDescriptor[] {
+              com.google.api.AnnotationsProto.getDescriptor(),
+              com.google.api.ClientProto.getDescriptor(),
+              com.google.api.FieldBehaviorProto.getDescriptor(),
+              com.google.api.ResourceProto.getDescriptor(),
+              com.google.protobuf.EmptyProto.getDescriptor(),
+              com.google.protobuf.FieldMaskProto.getDescriptor(),
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_descriptor =
+        getDescriptor().getMessageTypes().get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_descriptor,
+            new java.lang.String[] {
+              "Name",
+              "DisplayName",
+              "Kind",
+              "AutoExpansionMode",
+              "Entities",
+              "ExcludedPhrases",
+              "EnableFuzzyExtraction",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_Entity_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_Entity_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_Entity_descriptor,
+            new java.lang.String[] {
+              "Value", "Synonyms",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_ExcludedPhrase_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_descriptor
+            .getNestedTypes()
+            .get(1);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_ExcludedPhrase_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_EntityType_ExcludedPhrase_descriptor,
+            new java.lang.String[] {
+              "Value",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListEntityTypesRequest_descriptor =
+        getDescriptor().getMessageTypes().get(1);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListEntityTypesRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ListEntityTypesRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "LanguageCode", "PageSize", "PageToken",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListEntityTypesResponse_descriptor =
+        getDescriptor().getMessageTypes().get(2);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListEntityTypesResponse_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ListEntityTypesResponse_descriptor,
+            new java.lang.String[] {
+              "EntityTypes", "NextPageToken",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_GetEntityTypeRequest_descriptor =
+        getDescriptor().getMessageTypes().get(3);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_GetEntityTypeRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_GetEntityTypeRequest_descriptor,
+            new java.lang.String[] {
+              "Name", "LanguageCode",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_CreateEntityTypeRequest_descriptor =
+        getDescriptor().getMessageTypes().get(4);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_CreateEntityTypeRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_CreateEntityTypeRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "EntityType", "LanguageCode",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateEntityTypeRequest_descriptor =
+        getDescriptor().getMessageTypes().get(5);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateEntityTypeRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateEntityTypeRequest_descriptor,
+            new java.lang.String[] {
+              "EntityType", "LanguageCode", "UpdateMask",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteEntityTypeRequest_descriptor =
+        getDescriptor().getMessageTypes().get(6);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteEntityTypeRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteEntityTypeRequest_descriptor,
+            new java.lang.String[] {
+              "Name",
+            });
+    com.google.protobuf.ExtensionRegistry registry =
+        com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.ClientProto.defaultHost);
+    registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
+    registry.add(com.google.api.AnnotationsProto.http);
+    registry.add(com.google.api.ClientProto.methodSignature);
+    registry.add(com.google.api.ClientProto.oauthScopes);
+    registry.add(com.google.api.ResourceProto.resource);
+    registry.add(com.google.api.ResourceProto.resourceReference);
+    com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
+        descriptor, registry);
+    com.google.api.AnnotationsProto.getDescriptor();
+    com.google.api.ClientProto.getDescriptor();
+    com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.api.ResourceProto.getDescriptor();
+    com.google.protobuf.EmptyProto.getDescriptor();
+    com.google.protobuf.FieldMaskProto.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Environment.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Environment.java
new file mode 100644
index 000000000..f46512d9b
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Environment.java
@@ -0,0 +1,2660 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/environment.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Represents an environment for an agent. You can create multiple versions
+ * of your agent and publish them to separate environments. When you edit an
+ * agent, you are editing the draft agent. At any point, you can save the draft
+ * agent as an agent version, which is an immutable snapshot of your agent. When
+ * you save the draft agent, it is published to the default environment. When
+ * you create agent versions, you can publish them to custom environments. You
+ * can create a variety of custom environments for testing, development,
+ * production, etc.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Environment}
+ */
+public final class Environment extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.Environment)
+    EnvironmentOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use Environment.newBuilder() to construct.
+  private Environment(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private Environment() {
+    name_ = "";
+    displayName_ = "";
+    description_ = "";
+    versionConfigs_ = java.util.Collections.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new Environment();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private Environment(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              displayName_ = s;
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              description_ = s;
+              break;
+            }
+          case 42:
+            {
+              com.google.protobuf.Timestamp.Builder subBuilder = null;
+              if (updateTime_ != null) {
+                subBuilder = updateTime_.toBuilder();
+              }
+              updateTime_ =
+                  input.readMessage(com.google.protobuf.Timestamp.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(updateTime_);
+                updateTime_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 50:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                versionConfigs_ =
+                    new java.util.ArrayList<
+                        com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              versionConfigs_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig.parser(),
+                      extensionRegistry));
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        versionConfigs_ = java.util.Collections.unmodifiableList(versionConfigs_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_Environment_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_Environment_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.Environment.class,
+            com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder.class);
+  }
+
+  public interface VersionConfigOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * <pre>
+     * Required. Format: projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;.
+     * </pre>
+     *
+     * <code>
+     * string version = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The version.
+     */
+    java.lang.String getVersion();
+    /**
+     *
+     *
+     * <pre>
+     * Required. Format: projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;.
+     * </pre>
+     *
+     * <code>
+     * string version = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for version.
+     */
+    com.google.protobuf.ByteString getVersionBytes();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Configuration for the version.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig}
+   */
+  public static final class VersionConfig extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig)
+      VersionConfigOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use VersionConfig.newBuilder() to construct.
+    private VersionConfig(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+
+    private VersionConfig() {
+      version_ = "";
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new VersionConfig();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private VersionConfig(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+
+                version_ = s;
+                break;
+              }
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Environment_VersionConfig_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Environment_VersionConfig_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig.class,
+              com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig.Builder.class);
+    }
+
+    public static final int VERSION_FIELD_NUMBER = 1;
+    private volatile java.lang.Object version_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. Format: projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;.
+     * </pre>
+     *
+     * <code>
+     * string version = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The version.
+     */
+    @java.lang.Override
+    public java.lang.String getVersion() {
+      java.lang.Object ref = version_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        version_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Format: projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;.
+     * </pre>
+     *
+     * <code>
+     * string version = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for version.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getVersionBytes() {
+      java.lang.Object ref = version_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        version_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (!getVersionBytes().isEmpty()) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, version_);
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (!getVersionBytes().isEmpty()) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, version_);
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig other =
+          (com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig) obj;
+
+      if (!getVersion().equals(other.getVersion())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + VERSION_FIELD_NUMBER;
+      hash = (53 * hash) + getVersion().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig parseFrom(
+        byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration for the version.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig)
+        com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfigOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Environment_VersionConfig_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Environment_VersionConfig_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig.class,
+                com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig.Builder.class);
+      }
+
+      // Construct using
+      // com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        version_ = "";
+
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Environment_VersionConfig_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig
+          getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig
+            .getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig build() {
+        com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig buildPartial() {
+        com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig result =
+            new com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig(this);
+        result.version_ = version_;
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig) {
+          return mergeFrom(
+              (com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig other) {
+        if (other
+            == com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig
+                .getDefaultInstance()) return this;
+        if (!other.getVersion().isEmpty()) {
+          version_ = other.version_;
+          onChanged();
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig)
+                  e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private java.lang.Object version_ = "";
+      /**
+       *
+       *
+       * <pre>
+       * Required. Format: projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+       * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;.
+       * </pre>
+       *
+       * <code>
+       * string version = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+       * </code>
+       *
+       * @return The version.
+       */
+      public java.lang.String getVersion() {
+        java.lang.Object ref = version_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          version_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. Format: projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+       * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;.
+       * </pre>
+       *
+       * <code>
+       * string version = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+       * </code>
+       *
+       * @return The bytes for version.
+       */
+      public com.google.protobuf.ByteString getVersionBytes() {
+        java.lang.Object ref = version_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          version_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. Format: projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+       * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;.
+       * </pre>
+       *
+       * <code>
+       * string version = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+       * </code>
+       *
+       * @param value The version to set.
+       * @return This builder for chaining.
+       */
+      public Builder setVersion(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+
+        version_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. Format: projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+       * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;.
+       * </pre>
+       *
+       * <code>
+       * string version = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+       * </code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearVersion() {
+
+        version_ = getDefaultInstance().getVersion();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. Format: projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+       * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;.
+       * </pre>
+       *
+       * <code>
+       * string version = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+       * </code>
+       *
+       * @param value The bytes for version to set.
+       * @return This builder for chaining.
+       */
+      public Builder setVersionBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+
+        version_ = value;
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig)
+    private static final com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig();
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<VersionConfig> PARSER =
+        new com.google.protobuf.AbstractParser<VersionConfig>() {
+          @java.lang.Override
+          public VersionConfig parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new VersionConfig(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser<VersionConfig> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<VersionConfig> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * The name of the environment.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/environments/&lt;Environment ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The name of the environment.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/environments/&lt;Environment ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int DISPLAY_NAME_FIELD_NUMBER = 2;
+  private volatile java.lang.Object displayName_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the environment (unique in an agent). Limit of
+   * 64 characters.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The displayName.
+   */
+  @java.lang.Override
+  public java.lang.String getDisplayName() {
+    java.lang.Object ref = displayName_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      displayName_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the environment (unique in an agent). Limit of
+   * 64 characters.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for displayName.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getDisplayNameBytes() {
+    java.lang.Object ref = displayName_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      displayName_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int DESCRIPTION_FIELD_NUMBER = 3;
+  private volatile java.lang.Object description_;
+  /**
+   *
+   *
+   * <pre>
+   * The human-readable description of the environment. The maximum length is
+   * 500 characters. If exceeded, the request is rejected.
+   * </pre>
+   *
+   * <code>string description = 3;</code>
+   *
+   * @return The description.
+   */
+  @java.lang.Override
+  public java.lang.String getDescription() {
+    java.lang.Object ref = description_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      description_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The human-readable description of the environment. The maximum length is
+   * 500 characters. If exceeded, the request is rejected.
+   * </pre>
+   *
+   * <code>string description = 3;</code>
+   *
+   * @return The bytes for description.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getDescriptionBytes() {
+    java.lang.Object ref = description_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      description_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int VERSION_CONFIGS_FIELD_NUMBER = 6;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig>
+      versionConfigs_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
+   * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+   * returned.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig>
+      getVersionConfigsList() {
+    return versionConfigs_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
+   * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+   * returned.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<
+          ? extends com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfigOrBuilder>
+      getVersionConfigsOrBuilderList() {
+    return versionConfigs_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
+   * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+   * returned.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public int getVersionConfigsCount() {
+    return versionConfigs_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
+   * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+   * returned.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig getVersionConfigs(
+      int index) {
+    return versionConfigs_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
+   * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+   * returned.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfigOrBuilder
+      getVersionConfigsOrBuilder(int index) {
+    return versionConfigs_.get(index);
+  }
+
+  public static final int UPDATE_TIME_FIELD_NUMBER = 5;
+  private com.google.protobuf.Timestamp updateTime_;
+  /**
+   *
+   *
+   * <pre>
+   * Output only. Update time of this environment.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return Whether the updateTime field is set.
+   */
+  @java.lang.Override
+  public boolean hasUpdateTime() {
+    return updateTime_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Output only. Update time of this environment.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return The updateTime.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Timestamp getUpdateTime() {
+    return updateTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : updateTime_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Output only. Update time of this environment.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.TimestampOrBuilder getUpdateTimeOrBuilder() {
+    return getUpdateTime();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (!getDisplayNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, displayName_);
+    }
+    if (!getDescriptionBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, description_);
+    }
+    if (updateTime_ != null) {
+      output.writeMessage(5, getUpdateTime());
+    }
+    for (int i = 0; i < versionConfigs_.size(); i++) {
+      output.writeMessage(6, versionConfigs_.get(i));
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (!getDisplayNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, displayName_);
+    }
+    if (!getDescriptionBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, description_);
+    }
+    if (updateTime_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, getUpdateTime());
+    }
+    for (int i = 0; i < versionConfigs_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(6, versionConfigs_.get(i));
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.Environment)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.Environment other =
+        (com.google.cloud.dialogflow.cx.v3beta1.Environment) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!getDisplayName().equals(other.getDisplayName())) return false;
+    if (!getDescription().equals(other.getDescription())) return false;
+    if (!getVersionConfigsList().equals(other.getVersionConfigsList())) return false;
+    if (hasUpdateTime() != other.hasUpdateTime()) return false;
+    if (hasUpdateTime()) {
+      if (!getUpdateTime().equals(other.getUpdateTime())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + DISPLAY_NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getDisplayName().hashCode();
+    hash = (37 * hash) + DESCRIPTION_FIELD_NUMBER;
+    hash = (53 * hash) + getDescription().hashCode();
+    if (getVersionConfigsCount() > 0) {
+      hash = (37 * hash) + VERSION_CONFIGS_FIELD_NUMBER;
+      hash = (53 * hash) + getVersionConfigsList().hashCode();
+    }
+    if (hasUpdateTime()) {
+      hash = (37 * hash) + UPDATE_TIME_FIELD_NUMBER;
+      hash = (53 * hash) + getUpdateTime().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Environment parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Environment parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Environment parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Environment parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Environment parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Environment parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Environment parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Environment parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Environment parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Environment parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Environment parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Environment parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.cx.v3beta1.Environment prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents an environment for an agent. You can create multiple versions
+   * of your agent and publish them to separate environments. When you edit an
+   * agent, you are editing the draft agent. At any point, you can save the draft
+   * agent as an agent version, which is an immutable snapshot of your agent. When
+   * you save the draft agent, it is published to the default environment. When
+   * you create agent versions, you can publish them to custom environments. You
+   * can create a variety of custom environments for testing, development,
+   * production, etc.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Environment}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.Environment)
+      com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Environment_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Environment_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.Environment.class,
+              com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.Environment.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getVersionConfigsFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      displayName_ = "";
+
+      description_ = "";
+
+      if (versionConfigsBuilder_ == null) {
+        versionConfigs_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        versionConfigsBuilder_.clear();
+      }
+      if (updateTimeBuilder_ == null) {
+        updateTime_ = null;
+      } else {
+        updateTime_ = null;
+        updateTimeBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Environment_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Environment getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.Environment.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Environment build() {
+      com.google.cloud.dialogflow.cx.v3beta1.Environment result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Environment buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.Environment result =
+          new com.google.cloud.dialogflow.cx.v3beta1.Environment(this);
+      int from_bitField0_ = bitField0_;
+      result.name_ = name_;
+      result.displayName_ = displayName_;
+      result.description_ = description_;
+      if (versionConfigsBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          versionConfigs_ = java.util.Collections.unmodifiableList(versionConfigs_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.versionConfigs_ = versionConfigs_;
+      } else {
+        result.versionConfigs_ = versionConfigsBuilder_.build();
+      }
+      if (updateTimeBuilder_ == null) {
+        result.updateTime_ = updateTime_;
+      } else {
+        result.updateTime_ = updateTimeBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.Environment) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.Environment) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.Environment other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.Environment.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getDisplayName().isEmpty()) {
+        displayName_ = other.displayName_;
+        onChanged();
+      }
+      if (!other.getDescription().isEmpty()) {
+        description_ = other.description_;
+        onChanged();
+      }
+      if (versionConfigsBuilder_ == null) {
+        if (!other.versionConfigs_.isEmpty()) {
+          if (versionConfigs_.isEmpty()) {
+            versionConfigs_ = other.versionConfigs_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureVersionConfigsIsMutable();
+            versionConfigs_.addAll(other.versionConfigs_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.versionConfigs_.isEmpty()) {
+          if (versionConfigsBuilder_.isEmpty()) {
+            versionConfigsBuilder_.dispose();
+            versionConfigsBuilder_ = null;
+            versionConfigs_ = other.versionConfigs_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            versionConfigsBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getVersionConfigsFieldBuilder()
+                    : null;
+          } else {
+            versionConfigsBuilder_.addAllMessages(other.versionConfigs_);
+          }
+        }
+      }
+      if (other.hasUpdateTime()) {
+        mergeUpdateTime(other.getUpdateTime());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.Environment parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.Environment) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The name of the environment.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/environments/&lt;Environment ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The name of the environment.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/environments/&lt;Environment ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The name of the environment.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/environments/&lt;Environment ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The name of the environment.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/environments/&lt;Environment ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The name of the environment.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/environments/&lt;Environment ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object displayName_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the environment (unique in an agent). Limit of
+     * 64 characters.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The displayName.
+     */
+    public java.lang.String getDisplayName() {
+      java.lang.Object ref = displayName_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        displayName_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the environment (unique in an agent). Limit of
+     * 64 characters.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for displayName.
+     */
+    public com.google.protobuf.ByteString getDisplayNameBytes() {
+      java.lang.Object ref = displayName_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        displayName_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the environment (unique in an agent). Limit of
+     * 64 characters.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The displayName to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDisplayName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      displayName_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the environment (unique in an agent). Limit of
+     * 64 characters.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearDisplayName() {
+
+      displayName_ = getDefaultInstance().getDisplayName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the environment (unique in an agent). Limit of
+     * 64 characters.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The bytes for displayName to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDisplayNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      displayName_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object description_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The human-readable description of the environment. The maximum length is
+     * 500 characters. If exceeded, the request is rejected.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     *
+     * @return The description.
+     */
+    public java.lang.String getDescription() {
+      java.lang.Object ref = description_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        description_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The human-readable description of the environment. The maximum length is
+     * 500 characters. If exceeded, the request is rejected.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     *
+     * @return The bytes for description.
+     */
+    public com.google.protobuf.ByteString getDescriptionBytes() {
+      java.lang.Object ref = description_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        description_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The human-readable description of the environment. The maximum length is
+     * 500 characters. If exceeded, the request is rejected.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     *
+     * @param value The description to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDescription(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      description_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The human-readable description of the environment. The maximum length is
+     * 500 characters. If exceeded, the request is rejected.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearDescription() {
+
+      description_ = getDefaultInstance().getDescription();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The human-readable description of the environment. The maximum length is
+     * 500 characters. If exceeded, the request is rejected.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     *
+     * @param value The bytes for description to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDescriptionBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      description_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig>
+        versionConfigs_ = java.util.Collections.emptyList();
+
+    private void ensureVersionConfigsIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        versionConfigs_ =
+            new java.util.ArrayList<
+                com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig>(versionConfigs_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig,
+            com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfigOrBuilder>
+        versionConfigsBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * Required. A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
+     * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+     * returned.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig>
+        getVersionConfigsList() {
+      if (versionConfigsBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(versionConfigs_);
+      } else {
+        return versionConfigsBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
+     * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+     * returned.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public int getVersionConfigsCount() {
+      if (versionConfigsBuilder_ == null) {
+        return versionConfigs_.size();
+      } else {
+        return versionConfigsBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
+     * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+     * returned.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig getVersionConfigs(
+        int index) {
+      if (versionConfigsBuilder_ == null) {
+        return versionConfigs_.get(index);
+      } else {
+        return versionConfigsBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
+     * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+     * returned.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setVersionConfigs(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig value) {
+      if (versionConfigsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureVersionConfigsIsMutable();
+        versionConfigs_.set(index, value);
+        onChanged();
+      } else {
+        versionConfigsBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
+     * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+     * returned.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setVersionConfigs(
+        int index,
+        com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig.Builder builderForValue) {
+      if (versionConfigsBuilder_ == null) {
+        ensureVersionConfigsIsMutable();
+        versionConfigs_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        versionConfigsBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
+     * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+     * returned.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder addVersionConfigs(
+        com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig value) {
+      if (versionConfigsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureVersionConfigsIsMutable();
+        versionConfigs_.add(value);
+        onChanged();
+      } else {
+        versionConfigsBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
+     * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+     * returned.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder addVersionConfigs(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig value) {
+      if (versionConfigsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureVersionConfigsIsMutable();
+        versionConfigs_.add(index, value);
+        onChanged();
+      } else {
+        versionConfigsBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
+     * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+     * returned.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder addVersionConfigs(
+        com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig.Builder builderForValue) {
+      if (versionConfigsBuilder_ == null) {
+        ensureVersionConfigsIsMutable();
+        versionConfigs_.add(builderForValue.build());
+        onChanged();
+      } else {
+        versionConfigsBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
+     * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+     * returned.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder addVersionConfigs(
+        int index,
+        com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig.Builder builderForValue) {
+      if (versionConfigsBuilder_ == null) {
+        ensureVersionConfigsIsMutable();
+        versionConfigs_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        versionConfigsBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
+     * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+     * returned.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder addAllVersionConfigs(
+        java.lang.Iterable<
+                ? extends com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig>
+            values) {
+      if (versionConfigsBuilder_ == null) {
+        ensureVersionConfigsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, versionConfigs_);
+        onChanged();
+      } else {
+        versionConfigsBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
+     * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+     * returned.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearVersionConfigs() {
+      if (versionConfigsBuilder_ == null) {
+        versionConfigs_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        versionConfigsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
+     * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+     * returned.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder removeVersionConfigs(int index) {
+      if (versionConfigsBuilder_ == null) {
+        ensureVersionConfigsIsMutable();
+        versionConfigs_.remove(index);
+        onChanged();
+      } else {
+        versionConfigsBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
+     * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+     * returned.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig.Builder
+        getVersionConfigsBuilder(int index) {
+      return getVersionConfigsFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
+     * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+     * returned.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfigOrBuilder
+        getVersionConfigsOrBuilder(int index) {
+      if (versionConfigsBuilder_ == null) {
+        return versionConfigs_.get(index);
+      } else {
+        return versionConfigsBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
+     * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+     * returned.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public java.util.List<
+            ? extends com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfigOrBuilder>
+        getVersionConfigsOrBuilderList() {
+      if (versionConfigsBuilder_ != null) {
+        return versionConfigsBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(versionConfigs_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
+     * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+     * returned.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig.Builder
+        addVersionConfigsBuilder() {
+      return getVersionConfigsFieldBuilder()
+          .addBuilder(
+              com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig
+                  .getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
+     * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+     * returned.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig.Builder
+        addVersionConfigsBuilder(int index) {
+      return getVersionConfigsFieldBuilder()
+          .addBuilder(
+              index,
+              com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig
+                  .getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A list of configurations for flow versions. You should include version
+     * configs for all flows that are reachable from [`Start
+     * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+     * returned.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig.Builder>
+        getVersionConfigsBuilderList() {
+      return getVersionConfigsFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig,
+            com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfigOrBuilder>
+        getVersionConfigsFieldBuilder() {
+      if (versionConfigsBuilder_ == null) {
+        versionConfigsBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig,
+                com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfigOrBuilder>(
+                versionConfigs_,
+                ((bitField0_ & 0x00000001) != 0),
+                getParentForChildren(),
+                isClean());
+        versionConfigs_ = null;
+      }
+      return versionConfigsBuilder_;
+    }
+
+    private com.google.protobuf.Timestamp updateTime_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Timestamp,
+            com.google.protobuf.Timestamp.Builder,
+            com.google.protobuf.TimestampOrBuilder>
+        updateTimeBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Output only. Update time of this environment.
+     * </pre>
+     *
+     * <code>
+     * .google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     *
+     * @return Whether the updateTime field is set.
+     */
+    public boolean hasUpdateTime() {
+      return updateTimeBuilder_ != null || updateTime_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. Update time of this environment.
+     * </pre>
+     *
+     * <code>
+     * .google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     *
+     * @return The updateTime.
+     */
+    public com.google.protobuf.Timestamp getUpdateTime() {
+      if (updateTimeBuilder_ == null) {
+        return updateTime_ == null
+            ? com.google.protobuf.Timestamp.getDefaultInstance()
+            : updateTime_;
+      } else {
+        return updateTimeBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. Update time of this environment.
+     * </pre>
+     *
+     * <code>
+     * .google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public Builder setUpdateTime(com.google.protobuf.Timestamp value) {
+      if (updateTimeBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        updateTime_ = value;
+        onChanged();
+      } else {
+        updateTimeBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. Update time of this environment.
+     * </pre>
+     *
+     * <code>
+     * .google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public Builder setUpdateTime(com.google.protobuf.Timestamp.Builder builderForValue) {
+      if (updateTimeBuilder_ == null) {
+        updateTime_ = builderForValue.build();
+        onChanged();
+      } else {
+        updateTimeBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. Update time of this environment.
+     * </pre>
+     *
+     * <code>
+     * .google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public Builder mergeUpdateTime(com.google.protobuf.Timestamp value) {
+      if (updateTimeBuilder_ == null) {
+        if (updateTime_ != null) {
+          updateTime_ =
+              com.google.protobuf.Timestamp.newBuilder(updateTime_).mergeFrom(value).buildPartial();
+        } else {
+          updateTime_ = value;
+        }
+        onChanged();
+      } else {
+        updateTimeBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. Update time of this environment.
+     * </pre>
+     *
+     * <code>
+     * .google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public Builder clearUpdateTime() {
+      if (updateTimeBuilder_ == null) {
+        updateTime_ = null;
+        onChanged();
+      } else {
+        updateTime_ = null;
+        updateTimeBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. Update time of this environment.
+     * </pre>
+     *
+     * <code>
+     * .google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public com.google.protobuf.Timestamp.Builder getUpdateTimeBuilder() {
+
+      onChanged();
+      return getUpdateTimeFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. Update time of this environment.
+     * </pre>
+     *
+     * <code>
+     * .google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public com.google.protobuf.TimestampOrBuilder getUpdateTimeOrBuilder() {
+      if (updateTimeBuilder_ != null) {
+        return updateTimeBuilder_.getMessageOrBuilder();
+      } else {
+        return updateTime_ == null
+            ? com.google.protobuf.Timestamp.getDefaultInstance()
+            : updateTime_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. Update time of this environment.
+     * </pre>
+     *
+     * <code>
+     * .google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Timestamp,
+            com.google.protobuf.Timestamp.Builder,
+            com.google.protobuf.TimestampOrBuilder>
+        getUpdateTimeFieldBuilder() {
+      if (updateTimeBuilder_ == null) {
+        updateTimeBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.Timestamp,
+                com.google.protobuf.Timestamp.Builder,
+                com.google.protobuf.TimestampOrBuilder>(
+                getUpdateTime(), getParentForChildren(), isClean());
+        updateTime_ = null;
+      }
+      return updateTimeBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.Environment)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.Environment)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.Environment DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.Environment();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Environment getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<Environment> PARSER =
+      new com.google.protobuf.AbstractParser<Environment>() {
+        @java.lang.Override
+        public Environment parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new Environment(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<Environment> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<Environment> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Environment getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentName.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentName.java
new file mode 100644
index 000000000..33cfca470
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentName.java
@@ -0,0 +1,243 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+/** AUTO-GENERATED DOCUMENTATION AND CLASS */
+@javax.annotation.Generated("by GAPIC protoc plugin")
+public class EnvironmentName implements ResourceName {
+
+  private static final PathTemplate PATH_TEMPLATE =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/agents/{agent}/environments/{environment}");
+
+  private volatile Map<String, String> fieldValuesMap;
+
+  private final String project;
+  private final String location;
+  private final String agent;
+  private final String environment;
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public String getAgent() {
+    return agent;
+  }
+
+  public String getEnvironment() {
+    return environment;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  private EnvironmentName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    agent = Preconditions.checkNotNull(builder.getAgent());
+    environment = Preconditions.checkNotNull(builder.getEnvironment());
+  }
+
+  public static EnvironmentName of(
+      String project, String location, String agent, String environment) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setEnvironment(environment)
+        .build();
+  }
+
+  public static String format(String project, String location, String agent, String environment) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setEnvironment(environment)
+        .build()
+        .toString();
+  }
+
+  public static EnvironmentName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    Map<String, String> matchMap =
+        PATH_TEMPLATE.validatedMatch(
+            formattedString, "EnvironmentName.parse: formattedString not in valid format");
+    return of(
+        matchMap.get("project"),
+        matchMap.get("location"),
+        matchMap.get("agent"),
+        matchMap.get("environment"));
+  }
+
+  public static List<EnvironmentName> parseList(List<String> formattedStrings) {
+    List<EnvironmentName> list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List<String> toStringList(List<EnvironmentName> values) {
+    List<String> list = new ArrayList<String>(values.size());
+    for (EnvironmentName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PATH_TEMPLATE.matches(formattedString);
+  }
+
+  public Map<String, String> getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder<String, String> fieldMapBuilder = ImmutableMap.builder();
+          fieldMapBuilder.put("project", project);
+          fieldMapBuilder.put("location", location);
+          fieldMapBuilder.put("agent", agent);
+          fieldMapBuilder.put("environment", environment);
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return PATH_TEMPLATE.instantiate(
+        "project", project, "location", location, "agent", agent, "environment", environment);
+  }
+
+  /** Builder for EnvironmentName. */
+  public static class Builder {
+
+    private String project;
+    private String location;
+    private String agent;
+    private String environment;
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getAgent() {
+      return agent;
+    }
+
+    public String getEnvironment() {
+      return environment;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public Builder setAgent(String agent) {
+      this.agent = agent;
+      return this;
+    }
+
+    public Builder setEnvironment(String environment) {
+      this.environment = environment;
+      return this;
+    }
+
+    private Builder() {}
+
+    private Builder(EnvironmentName environmentName) {
+      project = environmentName.project;
+      location = environmentName.location;
+      agent = environmentName.agent;
+      environment = environmentName.environment;
+    }
+
+    public EnvironmentName build() {
+      return new EnvironmentName(this);
+    }
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o instanceof EnvironmentName) {
+      EnvironmentName that = (EnvironmentName) o;
+      return (this.project.equals(that.project))
+          && (this.location.equals(that.location))
+          && (this.agent.equals(that.agent))
+          && (this.environment.equals(that.environment));
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= project.hashCode();
+    h *= 1000003;
+    h ^= location.hashCode();
+    h *= 1000003;
+    h ^= agent.hashCode();
+    h *= 1000003;
+    h ^= environment.hashCode();
+    return h;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentOrBuilder.java
new file mode 100644
index 000000000..d90706d1c
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentOrBuilder.java
@@ -0,0 +1,226 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/environment.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface EnvironmentOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.Environment)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The name of the environment.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/environments/&lt;Environment ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * The name of the environment.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/environments/&lt;Environment ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the environment (unique in an agent). Limit of
+   * 64 characters.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The displayName.
+   */
+  java.lang.String getDisplayName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the environment (unique in an agent). Limit of
+   * 64 characters.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for displayName.
+   */
+  com.google.protobuf.ByteString getDisplayNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The human-readable description of the environment. The maximum length is
+   * 500 characters. If exceeded, the request is rejected.
+   * </pre>
+   *
+   * <code>string description = 3;</code>
+   *
+   * @return The description.
+   */
+  java.lang.String getDescription();
+  /**
+   *
+   *
+   * <pre>
+   * The human-readable description of the environment. The maximum length is
+   * 500 characters. If exceeded, the request is rejected.
+   * </pre>
+   *
+   * <code>string description = 3;</code>
+   *
+   * @return The bytes for description.
+   */
+  com.google.protobuf.ByteString getDescriptionBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
+   * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+   * returned.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig>
+      getVersionConfigsList();
+  /**
+   *
+   *
+   * <pre>
+   * Required. A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
+   * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+   * returned.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig getVersionConfigs(int index);
+  /**
+   *
+   *
+   * <pre>
+   * Required. A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
+   * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+   * returned.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  int getVersionConfigsCount();
+  /**
+   *
+   *
+   * <pre>
+   * Required. A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
+   * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+   * returned.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  java.util.List<
+          ? extends com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfigOrBuilder>
+      getVersionConfigsOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * Required. A list of configurations for flow versions. You should include version
+   * configs for all flows that are reachable from [`Start
+   * Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+   * returned.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfig version_configs = 6 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Environment.VersionConfigOrBuilder
+      getVersionConfigsOrBuilder(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * Output only. Update time of this environment.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return Whether the updateTime field is set.
+   */
+  boolean hasUpdateTime();
+  /**
+   *
+   *
+   * <pre>
+   * Output only. Update time of this environment.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return The updateTime.
+   */
+  com.google.protobuf.Timestamp getUpdateTime();
+  /**
+   *
+   *
+   * <pre>
+   * Output only. Update time of this environment.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp update_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   */
+  com.google.protobuf.TimestampOrBuilder getUpdateTimeOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentProto.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentProto.java
new file mode 100644
index 000000000..d2b14d789
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EnvironmentProto.java
@@ -0,0 +1,287 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/environment.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public final class EnvironmentProto {
+  private EnvironmentProto() {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistryLite registry) {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions((com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Environment_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Environment_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Environment_VersionConfig_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Environment_VersionConfig_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListEnvironmentsRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListEnvironmentsRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListEnvironmentsResponse_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListEnvironmentsResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_GetEnvironmentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_GetEnvironmentRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_CreateEnvironmentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_CreateEnvironmentRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateEnvironmentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateEnvironmentRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteEnvironmentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteEnvironmentRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_LookupEnvironmentHistoryRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_LookupEnvironmentHistoryRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_LookupEnvironmentHistoryResponse_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_LookupEnvironmentHistoryResponse_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
+    return descriptor;
+  }
+
+  private static com.google.protobuf.Descriptors.FileDescriptor descriptor;
+
+  static {
+    java.lang.String[] descriptorData = {
+      "\n4google/cloud/dialogflow/cx/v3beta1/env"
+          + "ironment.proto\022\"google.cloud.dialogflow."
+          + "cx.v3beta1\032\034google/api/annotations.proto"
+          + "\032\027google/api/client.proto\032\037google/api/fi"
+          + "eld_behavior.proto\032\031google/api/resource."
+          + "proto\032#google/longrunning/operations.pro"
+          + "to\032\033google/protobuf/empty.proto\032 google/"
+          + "protobuf/field_mask.proto\032\037google/protob"
+          + "uf/timestamp.proto\"\252\003\n\013Environment\022\014\n\004na"
+          + "me\030\001 \001(\t\022\031\n\014display_name\030\002 \001(\tB\003\340A\002\022\023\n\013d"
+          + "escription\030\003 \001(\t\022[\n\017version_configs\030\006 \003("
+          + "\0132=.google.cloud.dialogflow.cx.v3beta1.E"
+          + "nvironment.VersionConfigB\003\340A\002\0224\n\013update_"
+          + "time\030\005 \001(\0132\032.google.protobuf.TimestampB\003"
+          + "\340A\003\032K\n\rVersionConfig\022:\n\007version\030\001 \001(\tB)\340"
+          + "A\002\372A#\n!dialogflow.googleapis.com/Version"
+          + ":}\352Az\n%dialogflow.googleapis.com/Environ"
+          + "ment\022Qprojects/{project}/locations/{loca"
+          + "tion}/agents/{agent}/environments/{envir"
+          + "onment}\"\177\n\027ListEnvironmentsRequest\022=\n\006pa"
+          + "rent\030\001 \001(\tB-\340A\002\372A\'\022%dialogflow.googleapi"
+          + "s.com/Environment\022\021\n\tpage_size\030\002 \001(\005\022\022\n\n"
+          + "page_token\030\003 \001(\t\"z\n\030ListEnvironmentsResp"
+          + "onse\022E\n\014environments\030\001 \003(\0132/.google.clou"
+          + "d.dialogflow.cx.v3beta1.Environment\022\027\n\017n"
+          + "ext_page_token\030\002 \001(\t\"T\n\025GetEnvironmentRe"
+          + "quest\022;\n\004name\030\001 \001(\tB-\340A\002\372A\'\n%dialogflow."
+          + "googleapis.com/Environment\"\244\001\n\030CreateEnv"
+          + "ironmentRequest\022=\n\006parent\030\001 \001(\tB-\340A\002\372A\'\022"
+          + "%dialogflow.googleapis.com/Environment\022I"
+          + "\n\013environment\030\002 \001(\0132/.google.cloud.dialo"
+          + "gflow.cx.v3beta1.EnvironmentB\003\340A\002\"\233\001\n\030Up"
+          + "dateEnvironmentRequest\022I\n\013environment\030\001 "
+          + "\001(\0132/.google.cloud.dialogflow.cx.v3beta1"
+          + ".EnvironmentB\003\340A\002\0224\n\013update_mask\030\002 \001(\0132\032"
+          + ".google.protobuf.FieldMaskB\003\340A\002\"W\n\030Delet"
+          + "eEnvironmentRequest\022;\n\004name\030\001 \001(\tB-\340A\002\372A"
+          + "\'\n%dialogflow.googleapis.com/Environment"
+          + "\"\205\001\n\037LookupEnvironmentHistoryRequest\022;\n\004"
+          + "name\030\001 \001(\tB-\340A\002\372A\'\n%dialogflow.googleapi"
+          + "s.com/Environment\022\021\n\tpage_size\030\002 \001(\005\022\022\n\n"
+          + "page_token\030\003 \001(\t\"\202\001\n LookupEnvironmentHi"
+          + "storyResponse\022E\n\014environments\030\001 \003(\0132/.go"
+          + "ogle.cloud.dialogflow.cx.v3beta1.Environ"
+          + "ment\022\027\n\017next_page_token\030\002 \001(\t2\237\014\n\014Enviro"
+          + "nments\022\336\001\n\020ListEnvironments\022;.google.clo"
+          + "ud.dialogflow.cx.v3beta1.ListEnvironment"
+          + "sRequest\032<.google.cloud.dialogflow.cx.v3"
+          + "beta1.ListEnvironmentsResponse\"O\202\323\344\223\002@\022>"
+          + "/v3beta1/{parent=projects/*/locations/*/"
+          + "agents/*}/environments\332A\006parent\022\313\001\n\016GetE"
+          + "nvironment\0229.google.cloud.dialogflow.cx."
+          + "v3beta1.GetEnvironmentRequest\032/.google.c"
+          + "loud.dialogflow.cx.v3beta1.Environment\"M"
+          + "\202\323\344\223\002@\022>/v3beta1/{name=projects/*/locati"
+          + "ons/*/agents/*/environments/*}\332A\004name\022\203\002"
+          + "\n\021CreateEnvironment\022<.google.cloud.dialo"
+          + "gflow.cx.v3beta1.CreateEnvironmentReques"
+          + "t\032\035.google.longrunning.Operation\"\220\001\202\323\344\223\002"
+          + "M\">/v3beta1/{parent=projects/*/locations"
+          + "/*/agents/*}/environments:\013environment\332A"
+          + "\022parent,environment\312A%\n\013Environment\022\026goo"
+          + "gle.protobuf.Struct\022\224\002\n\021UpdateEnvironmen"
+          + "t\022<.google.cloud.dialogflow.cx.v3beta1.U"
+          + "pdateEnvironmentRequest\032\035.google.longrun"
+          + "ning.Operation\"\241\001\202\323\344\223\002Y2J/v3beta1/{envir"
+          + "onment.name=projects/*/locations/*/agent"
+          + "s/*/environments/*}:\013environment\332A\027envir"
+          + "onment,update_mask\312A%\n\013Environment\022\026goog"
+          + "le.protobuf.Struct\022\270\001\n\021DeleteEnvironment"
+          + "\022<.google.cloud.dialogflow.cx.v3beta1.De"
+          + "leteEnvironmentRequest\032\026.google.protobuf"
+          + ".Empty\"M\202\323\344\223\002@*>/v3beta1/{name=projects/"
+          + "*/locations/*/agents/*/environments/*}\332A"
+          + "\004name\022\215\002\n\030LookupEnvironmentHistory\022C.goo"
+          + "gle.cloud.dialogflow.cx.v3beta1.LookupEn"
+          + "vironmentHistoryRequest\032D.google.cloud.d"
+          + "ialogflow.cx.v3beta1.LookupEnvironmentHi"
+          + "storyResponse\"f\202\323\344\223\002Y\022W/v3beta1/{name=pr"
+          + "ojects/*/locations/*/agents/*/environmen"
+          + "ts/*}:lookupEnvironmentHistory\332A\004name\032x\312"
+          + "A\031dialogflow.googleapis.com\322AYhttps://ww"
+          + "w.googleapis.com/auth/cloud-platform,htt"
+          + "ps://www.googleapis.com/auth/dialogflowB"
+          + "\257\001\n&com.google.cloud.dialogflow.cx.v3bet"
+          + "a1B\020EnvironmentProtoP\001ZDgoogle.golang.or"
+          + "g/genproto/googleapis/cloud/dialogflow/c"
+          + "x/v3beta1;cx\370\001\001\242\002\002DF\252\002\"Google.Cloud.Dial"
+          + "ogflow.Cx.V3Beta1b\006proto3"
+    };
+    descriptor =
+        com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
+            descriptorData,
+            new com.google.protobuf.Descriptors.FileDescriptor[] {
+              com.google.api.AnnotationsProto.getDescriptor(),
+              com.google.api.ClientProto.getDescriptor(),
+              com.google.api.FieldBehaviorProto.getDescriptor(),
+              com.google.api.ResourceProto.getDescriptor(),
+              com.google.longrunning.OperationsProto.getDescriptor(),
+              com.google.protobuf.EmptyProto.getDescriptor(),
+              com.google.protobuf.FieldMaskProto.getDescriptor(),
+              com.google.protobuf.TimestampProto.getDescriptor(),
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Environment_descriptor =
+        getDescriptor().getMessageTypes().get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Environment_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_Environment_descriptor,
+            new java.lang.String[] {
+              "Name", "DisplayName", "Description", "VersionConfigs", "UpdateTime",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Environment_VersionConfig_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_Environment_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Environment_VersionConfig_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_Environment_VersionConfig_descriptor,
+            new java.lang.String[] {
+              "Version",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListEnvironmentsRequest_descriptor =
+        getDescriptor().getMessageTypes().get(1);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListEnvironmentsRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ListEnvironmentsRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "PageSize", "PageToken",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListEnvironmentsResponse_descriptor =
+        getDescriptor().getMessageTypes().get(2);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListEnvironmentsResponse_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ListEnvironmentsResponse_descriptor,
+            new java.lang.String[] {
+              "Environments", "NextPageToken",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_GetEnvironmentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(3);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_GetEnvironmentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_GetEnvironmentRequest_descriptor,
+            new java.lang.String[] {
+              "Name",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_CreateEnvironmentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(4);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_CreateEnvironmentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_CreateEnvironmentRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "Environment",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateEnvironmentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(5);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateEnvironmentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateEnvironmentRequest_descriptor,
+            new java.lang.String[] {
+              "Environment", "UpdateMask",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteEnvironmentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(6);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteEnvironmentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteEnvironmentRequest_descriptor,
+            new java.lang.String[] {
+              "Name",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_LookupEnvironmentHistoryRequest_descriptor =
+        getDescriptor().getMessageTypes().get(7);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_LookupEnvironmentHistoryRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_LookupEnvironmentHistoryRequest_descriptor,
+            new java.lang.String[] {
+              "Name", "PageSize", "PageToken",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_LookupEnvironmentHistoryResponse_descriptor =
+        getDescriptor().getMessageTypes().get(8);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_LookupEnvironmentHistoryResponse_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_LookupEnvironmentHistoryResponse_descriptor,
+            new java.lang.String[] {
+              "Environments", "NextPageToken",
+            });
+    com.google.protobuf.ExtensionRegistry registry =
+        com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.ClientProto.defaultHost);
+    registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
+    registry.add(com.google.api.AnnotationsProto.http);
+    registry.add(com.google.api.ClientProto.methodSignature);
+    registry.add(com.google.api.ClientProto.oauthScopes);
+    registry.add(com.google.api.ResourceProto.resource);
+    registry.add(com.google.api.ResourceProto.resourceReference);
+    registry.add(com.google.longrunning.OperationsProto.operationInfo);
+    com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
+        descriptor, registry);
+    com.google.api.AnnotationsProto.getDescriptor();
+    com.google.api.ClientProto.getDescriptor();
+    com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.api.ResourceProto.getDescriptor();
+    com.google.longrunning.OperationsProto.getDescriptor();
+    com.google.protobuf.EmptyProto.getDescriptor();
+    com.google.protobuf.FieldMaskProto.getDescriptor();
+    com.google.protobuf.TimestampProto.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EventHandler.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EventHandler.java
new file mode 100644
index 000000000..d20d16874
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EventHandler.java
@@ -0,0 +1,1669 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/page.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * An event handler specifies an [event][google.cloud.dialogflow.cx.v3beta1.EventHandler.event] that can be handled
+ * during a session. When the specified event happens, the following actions are
+ * taken in order:
+ * *   If there is a
+ * [`trigger_fulfillment`][google.cloud.dialogflow.cx.v3beta1.EventHandler.trigger_fulfillment] associated with
+ * the event, it will be called.
+ * *   If there is a [`target_page`][google.cloud.dialogflow.cx.v3beta1.EventHandler.target_page] associated
+ * with the event, the session will transition into the specified page.
+ * *   If there is a [`target_flow`][google.cloud.dialogflow.cx.v3beta1.EventHandler.target_flow] associated
+ * with the event, the session will transition into the specified flow.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.EventHandler}
+ */
+public final class EventHandler extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.EventHandler)
+    EventHandlerOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use EventHandler.newBuilder() to construct.
+  private EventHandler(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private EventHandler() {
+    name_ = "";
+    event_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new EventHandler();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private EventHandler(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+              targetCase_ = 2;
+              target_ = s;
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+              targetCase_ = 3;
+              target_ = s;
+              break;
+            }
+          case 34:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              event_ = s;
+              break;
+            }
+          case 42:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder subBuilder = null;
+              if (triggerFulfillment_ != null) {
+                subBuilder = triggerFulfillment_.toBuilder();
+              }
+              triggerFulfillment_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(triggerFulfillment_);
+                triggerFulfillment_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 50:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_EventHandler_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_EventHandler_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.EventHandler.class,
+            com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder.class);
+  }
+
+  private int targetCase_ = 0;
+  private java.lang.Object target_;
+
+  public enum TargetCase
+      implements
+          com.google.protobuf.Internal.EnumLite,
+          com.google.protobuf.AbstractMessage.InternalOneOfEnum {
+    TARGET_PAGE(2),
+    TARGET_FLOW(3),
+    TARGET_NOT_SET(0);
+    private final int value;
+
+    private TargetCase(int value) {
+      this.value = value;
+    }
+    /**
+     * @param value The number of the enum to look for.
+     * @return The enum associated with the given number.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static TargetCase valueOf(int value) {
+      return forNumber(value);
+    }
+
+    public static TargetCase forNumber(int value) {
+      switch (value) {
+        case 2:
+          return TARGET_PAGE;
+        case 3:
+          return TARGET_FLOW;
+        case 0:
+          return TARGET_NOT_SET;
+        default:
+          return null;
+      }
+    }
+
+    public int getNumber() {
+      return this.value;
+    }
+  };
+
+  public TargetCase getTargetCase() {
+    return TargetCase.forNumber(targetCase_);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 6;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The unique identifier of this event handler.
+   * </pre>
+   *
+   * <code>string name = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The unique identifier of this event handler.
+   * </pre>
+   *
+   * <code>string name = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int EVENT_FIELD_NUMBER = 4;
+  private volatile java.lang.Object event_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the event to handle.
+   * </pre>
+   *
+   * <code>string event = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The event.
+   */
+  @java.lang.Override
+  public java.lang.String getEvent() {
+    java.lang.Object ref = event_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      event_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the event to handle.
+   * </pre>
+   *
+   * <code>string event = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for event.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getEventBytes() {
+    java.lang.Object ref = event_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      event_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int TRIGGER_FULFILLMENT_FIELD_NUMBER = 5;
+  private com.google.cloud.dialogflow.cx.v3beta1.Fulfillment triggerFulfillment_;
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment to call when the event occurs.
+   * Handling webhook errors with a fulfillment enabled with webhook could
+   * cause infinite loop. It is invalid to specify such fulfillment for a
+   * handler handling webhooks.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 5;</code>
+   *
+   * @return Whether the triggerFulfillment field is set.
+   */
+  @java.lang.Override
+  public boolean hasTriggerFulfillment() {
+    return triggerFulfillment_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment to call when the event occurs.
+   * Handling webhook errors with a fulfillment enabled with webhook could
+   * cause infinite loop. It is invalid to specify such fulfillment for a
+   * handler handling webhooks.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 5;</code>
+   *
+   * @return The triggerFulfillment.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment getTriggerFulfillment() {
+    return triggerFulfillment_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.getDefaultInstance()
+        : triggerFulfillment_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment to call when the event occurs.
+   * Handling webhook errors with a fulfillment enabled with webhook could
+   * cause infinite loop. It is invalid to specify such fulfillment for a
+   * handler handling webhooks.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 5;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder
+      getTriggerFulfillmentOrBuilder() {
+    return getTriggerFulfillment();
+  }
+
+  public static final int TARGET_PAGE_FIELD_NUMBER = 2;
+  /**
+   *
+   *
+   * <pre>
+   * The target page to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_page = 2 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The targetPage.
+   */
+  public java.lang.String getTargetPage() {
+    java.lang.Object ref = "";
+    if (targetCase_ == 2) {
+      ref = target_;
+    }
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      if (targetCase_ == 2) {
+        target_ = s;
+      }
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The target page to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_page = 2 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for targetPage.
+   */
+  public com.google.protobuf.ByteString getTargetPageBytes() {
+    java.lang.Object ref = "";
+    if (targetCase_ == 2) {
+      ref = target_;
+    }
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      if (targetCase_ == 2) {
+        target_ = b;
+      }
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int TARGET_FLOW_FIELD_NUMBER = 3;
+  /**
+   *
+   *
+   * <pre>
+   * The target flow to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_flow = 3 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The targetFlow.
+   */
+  public java.lang.String getTargetFlow() {
+    java.lang.Object ref = "";
+    if (targetCase_ == 3) {
+      ref = target_;
+    }
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      if (targetCase_ == 3) {
+        target_ = s;
+      }
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The target flow to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_flow = 3 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for targetFlow.
+   */
+  public com.google.protobuf.ByteString getTargetFlowBytes() {
+    java.lang.Object ref = "";
+    if (targetCase_ == 3) {
+      ref = target_;
+    }
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      if (targetCase_ == 3) {
+        target_ = b;
+      }
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (targetCase_ == 2) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, target_);
+    }
+    if (targetCase_ == 3) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, target_);
+    }
+    if (!getEventBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 4, event_);
+    }
+    if (triggerFulfillment_ != null) {
+      output.writeMessage(5, getTriggerFulfillment());
+    }
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 6, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (targetCase_ == 2) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, target_);
+    }
+    if (targetCase_ == 3) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, target_);
+    }
+    if (!getEventBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, event_);
+    }
+    if (triggerFulfillment_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, getTriggerFulfillment());
+    }
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.EventHandler)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.EventHandler other =
+        (com.google.cloud.dialogflow.cx.v3beta1.EventHandler) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!getEvent().equals(other.getEvent())) return false;
+    if (hasTriggerFulfillment() != other.hasTriggerFulfillment()) return false;
+    if (hasTriggerFulfillment()) {
+      if (!getTriggerFulfillment().equals(other.getTriggerFulfillment())) return false;
+    }
+    if (!getTargetCase().equals(other.getTargetCase())) return false;
+    switch (targetCase_) {
+      case 2:
+        if (!getTargetPage().equals(other.getTargetPage())) return false;
+        break;
+      case 3:
+        if (!getTargetFlow().equals(other.getTargetFlow())) return false;
+        break;
+      case 0:
+      default:
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + EVENT_FIELD_NUMBER;
+    hash = (53 * hash) + getEvent().hashCode();
+    if (hasTriggerFulfillment()) {
+      hash = (37 * hash) + TRIGGER_FULFILLMENT_FIELD_NUMBER;
+      hash = (53 * hash) + getTriggerFulfillment().hashCode();
+    }
+    switch (targetCase_) {
+      case 2:
+        hash = (37 * hash) + TARGET_PAGE_FIELD_NUMBER;
+        hash = (53 * hash) + getTargetPage().hashCode();
+        break;
+      case 3:
+        hash = (37 * hash) + TARGET_FLOW_FIELD_NUMBER;
+        hash = (53 * hash) + getTargetFlow().hashCode();
+        break;
+      case 0:
+      default:
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EventHandler parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EventHandler parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EventHandler parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EventHandler parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EventHandler parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EventHandler parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EventHandler parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EventHandler parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EventHandler parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EventHandler parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EventHandler parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EventHandler parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.cx.v3beta1.EventHandler prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * An event handler specifies an [event][google.cloud.dialogflow.cx.v3beta1.EventHandler.event] that can be handled
+   * during a session. When the specified event happens, the following actions are
+   * taken in order:
+   * *   If there is a
+   * [`trigger_fulfillment`][google.cloud.dialogflow.cx.v3beta1.EventHandler.trigger_fulfillment] associated with
+   * the event, it will be called.
+   * *   If there is a [`target_page`][google.cloud.dialogflow.cx.v3beta1.EventHandler.target_page] associated
+   * with the event, the session will transition into the specified page.
+   * *   If there is a [`target_flow`][google.cloud.dialogflow.cx.v3beta1.EventHandler.target_flow] associated
+   * with the event, the session will transition into the specified flow.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.EventHandler}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.EventHandler)
+      com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_EventHandler_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_EventHandler_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.EventHandler.class,
+              com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.EventHandler.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      event_ = "";
+
+      if (triggerFulfillmentBuilder_ == null) {
+        triggerFulfillment_ = null;
+      } else {
+        triggerFulfillment_ = null;
+        triggerFulfillmentBuilder_ = null;
+      }
+      targetCase_ = 0;
+      target_ = null;
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_EventHandler_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.EventHandler getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EventHandler.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.EventHandler build() {
+      com.google.cloud.dialogflow.cx.v3beta1.EventHandler result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.EventHandler buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.EventHandler result =
+          new com.google.cloud.dialogflow.cx.v3beta1.EventHandler(this);
+      result.name_ = name_;
+      result.event_ = event_;
+      if (triggerFulfillmentBuilder_ == null) {
+        result.triggerFulfillment_ = triggerFulfillment_;
+      } else {
+        result.triggerFulfillment_ = triggerFulfillmentBuilder_.build();
+      }
+      if (targetCase_ == 2) {
+        result.target_ = target_;
+      }
+      if (targetCase_ == 3) {
+        result.target_ = target_;
+      }
+      result.targetCase_ = targetCase_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.EventHandler) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.EventHandler) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.EventHandler other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.EventHandler.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getEvent().isEmpty()) {
+        event_ = other.event_;
+        onChanged();
+      }
+      if (other.hasTriggerFulfillment()) {
+        mergeTriggerFulfillment(other.getTriggerFulfillment());
+      }
+      switch (other.getTargetCase()) {
+        case TARGET_PAGE:
+          {
+            targetCase_ = 2;
+            target_ = other.target_;
+            onChanged();
+            break;
+          }
+        case TARGET_FLOW:
+          {
+            targetCase_ = 3;
+            target_ = other.target_;
+            onChanged();
+            break;
+          }
+        case TARGET_NOT_SET:
+          {
+            break;
+          }
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.EventHandler parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.EventHandler) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int targetCase_ = 0;
+    private java.lang.Object target_;
+
+    public TargetCase getTargetCase() {
+      return TargetCase.forNumber(targetCase_);
+    }
+
+    public Builder clearTarget() {
+      targetCase_ = 0;
+      target_ = null;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of this event handler.
+     * </pre>
+     *
+     * <code>string name = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of this event handler.
+     * </pre>
+     *
+     * <code>string name = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of this event handler.
+     * </pre>
+     *
+     * <code>string name = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of this event handler.
+     * </pre>
+     *
+     * <code>string name = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of this event handler.
+     * </pre>
+     *
+     * <code>string name = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object event_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the event to handle.
+     * </pre>
+     *
+     * <code>string event = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The event.
+     */
+    public java.lang.String getEvent() {
+      java.lang.Object ref = event_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        event_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the event to handle.
+     * </pre>
+     *
+     * <code>string event = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for event.
+     */
+    public com.google.protobuf.ByteString getEventBytes() {
+      java.lang.Object ref = event_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        event_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the event to handle.
+     * </pre>
+     *
+     * <code>string event = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The event to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEvent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      event_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the event to handle.
+     * </pre>
+     *
+     * <code>string event = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearEvent() {
+
+      event_ = getDefaultInstance().getEvent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the event to handle.
+     * </pre>
+     *
+     * <code>string event = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The bytes for event to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEventBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      event_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Fulfillment triggerFulfillment_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment,
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder>
+        triggerFulfillmentBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the event occurs.
+     * Handling webhook errors with a fulfillment enabled with webhook could
+     * cause infinite loop. It is invalid to specify such fulfillment for a
+     * handler handling webhooks.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 5;</code>
+     *
+     * @return Whether the triggerFulfillment field is set.
+     */
+    public boolean hasTriggerFulfillment() {
+      return triggerFulfillmentBuilder_ != null || triggerFulfillment_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the event occurs.
+     * Handling webhook errors with a fulfillment enabled with webhook could
+     * cause infinite loop. It is invalid to specify such fulfillment for a
+     * handler handling webhooks.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 5;</code>
+     *
+     * @return The triggerFulfillment.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment getTriggerFulfillment() {
+      if (triggerFulfillmentBuilder_ == null) {
+        return triggerFulfillment_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.getDefaultInstance()
+            : triggerFulfillment_;
+      } else {
+        return triggerFulfillmentBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the event occurs.
+     * Handling webhook errors with a fulfillment enabled with webhook could
+     * cause infinite loop. It is invalid to specify such fulfillment for a
+     * handler handling webhooks.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 5;</code>
+     */
+    public Builder setTriggerFulfillment(com.google.cloud.dialogflow.cx.v3beta1.Fulfillment value) {
+      if (triggerFulfillmentBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        triggerFulfillment_ = value;
+        onChanged();
+      } else {
+        triggerFulfillmentBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the event occurs.
+     * Handling webhook errors with a fulfillment enabled with webhook could
+     * cause infinite loop. It is invalid to specify such fulfillment for a
+     * handler handling webhooks.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 5;</code>
+     */
+    public Builder setTriggerFulfillment(
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder builderForValue) {
+      if (triggerFulfillmentBuilder_ == null) {
+        triggerFulfillment_ = builderForValue.build();
+        onChanged();
+      } else {
+        triggerFulfillmentBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the event occurs.
+     * Handling webhook errors with a fulfillment enabled with webhook could
+     * cause infinite loop. It is invalid to specify such fulfillment for a
+     * handler handling webhooks.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 5;</code>
+     */
+    public Builder mergeTriggerFulfillment(
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment value) {
+      if (triggerFulfillmentBuilder_ == null) {
+        if (triggerFulfillment_ != null) {
+          triggerFulfillment_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.newBuilder(triggerFulfillment_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          triggerFulfillment_ = value;
+        }
+        onChanged();
+      } else {
+        triggerFulfillmentBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the event occurs.
+     * Handling webhook errors with a fulfillment enabled with webhook could
+     * cause infinite loop. It is invalid to specify such fulfillment for a
+     * handler handling webhooks.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 5;</code>
+     */
+    public Builder clearTriggerFulfillment() {
+      if (triggerFulfillmentBuilder_ == null) {
+        triggerFulfillment_ = null;
+        onChanged();
+      } else {
+        triggerFulfillment_ = null;
+        triggerFulfillmentBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the event occurs.
+     * Handling webhook errors with a fulfillment enabled with webhook could
+     * cause infinite loop. It is invalid to specify such fulfillment for a
+     * handler handling webhooks.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 5;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder
+        getTriggerFulfillmentBuilder() {
+
+      onChanged();
+      return getTriggerFulfillmentFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the event occurs.
+     * Handling webhook errors with a fulfillment enabled with webhook could
+     * cause infinite loop. It is invalid to specify such fulfillment for a
+     * handler handling webhooks.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 5;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder
+        getTriggerFulfillmentOrBuilder() {
+      if (triggerFulfillmentBuilder_ != null) {
+        return triggerFulfillmentBuilder_.getMessageOrBuilder();
+      } else {
+        return triggerFulfillment_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.getDefaultInstance()
+            : triggerFulfillment_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the event occurs.
+     * Handling webhook errors with a fulfillment enabled with webhook could
+     * cause infinite loop. It is invalid to specify such fulfillment for a
+     * handler handling webhooks.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 5;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment,
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder>
+        getTriggerFulfillmentFieldBuilder() {
+      if (triggerFulfillmentBuilder_ == null) {
+        triggerFulfillmentBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment,
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder>(
+                getTriggerFulfillment(), getParentForChildren(), isClean());
+        triggerFulfillment_ = null;
+      }
+      return triggerFulfillmentBuilder_;
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * The target page to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_page = 2 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The targetPage.
+     */
+    @java.lang.Override
+    public java.lang.String getTargetPage() {
+      java.lang.Object ref = "";
+      if (targetCase_ == 2) {
+        ref = target_;
+      }
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (targetCase_ == 2) {
+          target_ = s;
+        }
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target page to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_page = 2 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The bytes for targetPage.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getTargetPageBytes() {
+      java.lang.Object ref = "";
+      if (targetCase_ == 2) {
+        ref = target_;
+      }
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        if (targetCase_ == 2) {
+          target_ = b;
+        }
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target page to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_page = 2 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The targetPage to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTargetPage(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      targetCase_ = 2;
+      target_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target page to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_page = 2 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearTargetPage() {
+      if (targetCase_ == 2) {
+        targetCase_ = 0;
+        target_ = null;
+        onChanged();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target page to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_page = 2 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The bytes for targetPage to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTargetPageBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      targetCase_ = 2;
+      target_ = value;
+      onChanged();
+      return this;
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * The target flow to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_flow = 3 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The targetFlow.
+     */
+    @java.lang.Override
+    public java.lang.String getTargetFlow() {
+      java.lang.Object ref = "";
+      if (targetCase_ == 3) {
+        ref = target_;
+      }
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (targetCase_ == 3) {
+          target_ = s;
+        }
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target flow to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_flow = 3 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The bytes for targetFlow.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getTargetFlowBytes() {
+      java.lang.Object ref = "";
+      if (targetCase_ == 3) {
+        ref = target_;
+      }
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        if (targetCase_ == 3) {
+          target_ = b;
+        }
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target flow to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_flow = 3 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The targetFlow to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTargetFlow(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      targetCase_ = 3;
+      target_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target flow to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_flow = 3 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearTargetFlow() {
+      if (targetCase_ == 3) {
+        targetCase_ = 0;
+        target_ = null;
+        onChanged();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target flow to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_flow = 3 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The bytes for targetFlow to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTargetFlowBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      targetCase_ = 3;
+      target_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.EventHandler)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.EventHandler)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.EventHandler DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.EventHandler();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.EventHandler getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<EventHandler> PARSER =
+      new com.google.protobuf.AbstractParser<EventHandler>() {
+        @java.lang.Override
+        public EventHandler parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new EventHandler(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<EventHandler> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<EventHandler> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.EventHandler getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EventHandlerOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EventHandlerOrBuilder.java
new file mode 100644
index 000000000..97ef9c118
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/EventHandlerOrBuilder.java
@@ -0,0 +1,179 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/page.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface EventHandlerOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.EventHandler)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The unique identifier of this event handler.
+   * </pre>
+   *
+   * <code>string name = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The unique identifier of this event handler.
+   * </pre>
+   *
+   * <code>string name = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the event to handle.
+   * </pre>
+   *
+   * <code>string event = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The event.
+   */
+  java.lang.String getEvent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the event to handle.
+   * </pre>
+   *
+   * <code>string event = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for event.
+   */
+  com.google.protobuf.ByteString getEventBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment to call when the event occurs.
+   * Handling webhook errors with a fulfillment enabled with webhook could
+   * cause infinite loop. It is invalid to specify such fulfillment for a
+   * handler handling webhooks.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 5;</code>
+   *
+   * @return Whether the triggerFulfillment field is set.
+   */
+  boolean hasTriggerFulfillment();
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment to call when the event occurs.
+   * Handling webhook errors with a fulfillment enabled with webhook could
+   * cause infinite loop. It is invalid to specify such fulfillment for a
+   * handler handling webhooks.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 5;</code>
+   *
+   * @return The triggerFulfillment.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment getTriggerFulfillment();
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment to call when the event occurs.
+   * Handling webhook errors with a fulfillment enabled with webhook could
+   * cause infinite loop. It is invalid to specify such fulfillment for a
+   * handler handling webhooks.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 5;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder getTriggerFulfillmentOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The target page to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_page = 2 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The targetPage.
+   */
+  java.lang.String getTargetPage();
+  /**
+   *
+   *
+   * <pre>
+   * The target page to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_page = 2 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for targetPage.
+   */
+  com.google.protobuf.ByteString getTargetPageBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The target flow to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_flow = 3 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The targetFlow.
+   */
+  java.lang.String getTargetFlow();
+  /**
+   *
+   *
+   * <pre>
+   * The target flow to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_flow = 3 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for targetFlow.
+   */
+  com.google.protobuf.ByteString getTargetFlowBytes();
+
+  public com.google.cloud.dialogflow.cx.v3beta1.EventHandler.TargetCase getTargetCase();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ExportAgentRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ExportAgentRequest.java
new file mode 100644
index 000000000..27b117424
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ExportAgentRequest.java
@@ -0,0 +1,858 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Agents.ExportAgent][google.cloud.dialogflow.cx.v3beta1.Agents.ExportAgent].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest}
+ */
+public final class ExportAgentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest)
+    ExportAgentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ExportAgentRequest.newBuilder() to construct.
+  private ExportAgentRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ExportAgentRequest() {
+    name_ = "";
+    agentUri_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ExportAgentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ExportAgentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              agentUri_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ExportAgentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ExportAgentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the agent to export.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the agent to export.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int AGENT_URI_FIELD_NUMBER = 2;
+  private volatile java.lang.Object agentUri_;
+  /**
+   *
+   *
+   * <pre>
+   * Optional. The [Google Cloud Storage](https://cloud.google.com/storage/docs/) URI to
+   * export the agent to. The format of this URI must be
+   * `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
+   * If left unspecified, the serialized agent is returned inline.
+   * </pre>
+   *
+   * <code>string agent_uri = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+   *
+   * @return The agentUri.
+   */
+  @java.lang.Override
+  public java.lang.String getAgentUri() {
+    java.lang.Object ref = agentUri_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      agentUri_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Optional. The [Google Cloud Storage](https://cloud.google.com/storage/docs/) URI to
+   * export the agent to. The format of this URI must be
+   * `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
+   * If left unspecified, the serialized agent is returned inline.
+   * </pre>
+   *
+   * <code>string agent_uri = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+   *
+   * @return The bytes for agentUri.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getAgentUriBytes() {
+    java.lang.Object ref = agentUri_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      agentUri_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (!getAgentUriBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, agentUri_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (!getAgentUriBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, agentUri_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!getAgentUri().equals(other.getAgentUri())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + AGENT_URI_FIELD_NUMBER;
+    hash = (53 * hash) + getAgentUri().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Agents.ExportAgent][google.cloud.dialogflow.cx.v3beta1.Agents.ExportAgent].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ExportAgentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ExportAgentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      agentUri_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ExportAgentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest(this);
+      result.name_ = name_;
+      result.agentUri_ = agentUri_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getAgentUri().isEmpty()) {
+        agentUri_ = other.agentUri_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the agent to export.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the agent to export.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the agent to export.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the agent to export.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the agent to export.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object agentUri_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The [Google Cloud Storage](https://cloud.google.com/storage/docs/) URI to
+     * export the agent to. The format of this URI must be
+     * `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
+     * If left unspecified, the serialized agent is returned inline.
+     * </pre>
+     *
+     * <code>string agent_uri = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     *
+     * @return The agentUri.
+     */
+    public java.lang.String getAgentUri() {
+      java.lang.Object ref = agentUri_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        agentUri_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The [Google Cloud Storage](https://cloud.google.com/storage/docs/) URI to
+     * export the agent to. The format of this URI must be
+     * `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
+     * If left unspecified, the serialized agent is returned inline.
+     * </pre>
+     *
+     * <code>string agent_uri = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     *
+     * @return The bytes for agentUri.
+     */
+    public com.google.protobuf.ByteString getAgentUriBytes() {
+      java.lang.Object ref = agentUri_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        agentUri_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The [Google Cloud Storage](https://cloud.google.com/storage/docs/) URI to
+     * export the agent to. The format of this URI must be
+     * `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
+     * If left unspecified, the serialized agent is returned inline.
+     * </pre>
+     *
+     * <code>string agent_uri = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     *
+     * @param value The agentUri to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAgentUri(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      agentUri_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The [Google Cloud Storage](https://cloud.google.com/storage/docs/) URI to
+     * export the agent to. The format of this URI must be
+     * `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
+     * If left unspecified, the serialized agent is returned inline.
+     * </pre>
+     *
+     * <code>string agent_uri = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearAgentUri() {
+
+      agentUri_ = getDefaultInstance().getAgentUri();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The [Google Cloud Storage](https://cloud.google.com/storage/docs/) URI to
+     * export the agent to. The format of this URI must be
+     * `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
+     * If left unspecified, the serialized agent is returned inline.
+     * </pre>
+     *
+     * <code>string agent_uri = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     *
+     * @param value The bytes for agentUri to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAgentUriBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      agentUri_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ExportAgentRequest> PARSER =
+      new com.google.protobuf.AbstractParser<ExportAgentRequest>() {
+        @java.lang.Override
+        public ExportAgentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ExportAgentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ExportAgentRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ExportAgentRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ExportAgentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ExportAgentRequestOrBuilder.java
new file mode 100644
index 000000000..b98996f88
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ExportAgentRequestOrBuilder.java
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ExportAgentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the agent to export.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the agent to export.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Optional. The [Google Cloud Storage](https://cloud.google.com/storage/docs/) URI to
+   * export the agent to. The format of this URI must be
+   * `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
+   * If left unspecified, the serialized agent is returned inline.
+   * </pre>
+   *
+   * <code>string agent_uri = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+   *
+   * @return The agentUri.
+   */
+  java.lang.String getAgentUri();
+  /**
+   *
+   *
+   * <pre>
+   * Optional. The [Google Cloud Storage](https://cloud.google.com/storage/docs/) URI to
+   * export the agent to. The format of this URI must be
+   * `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
+   * If left unspecified, the serialized agent is returned inline.
+   * </pre>
+   *
+   * <code>string agent_uri = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+   *
+   * @return The bytes for agentUri.
+   */
+  com.google.protobuf.ByteString getAgentUriBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ExportAgentResponse.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ExportAgentResponse.java
new file mode 100644
index 000000000..2a4779528
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ExportAgentResponse.java
@@ -0,0 +1,855 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The response message for [Agents.ExportAgent][google.cloud.dialogflow.cx.v3beta1.Agents.ExportAgent].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse}
+ */
+public final class ExportAgentResponse extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse)
+    ExportAgentResponseOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ExportAgentResponse.newBuilder() to construct.
+  private ExportAgentResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ExportAgentResponse() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ExportAgentResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ExportAgentResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+              agentCase_ = 1;
+              agent_ = s;
+              break;
+            }
+          case 18:
+            {
+              agentCase_ = 2;
+              agent_ = input.readBytes();
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ExportAgentResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ExportAgentResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse.class,
+            com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse.Builder.class);
+  }
+
+  private int agentCase_ = 0;
+  private java.lang.Object agent_;
+
+  public enum AgentCase
+      implements
+          com.google.protobuf.Internal.EnumLite,
+          com.google.protobuf.AbstractMessage.InternalOneOfEnum {
+    AGENT_URI(1),
+    AGENT_CONTENT(2),
+    AGENT_NOT_SET(0);
+    private final int value;
+
+    private AgentCase(int value) {
+      this.value = value;
+    }
+    /**
+     * @param value The number of the enum to look for.
+     * @return The enum associated with the given number.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static AgentCase valueOf(int value) {
+      return forNumber(value);
+    }
+
+    public static AgentCase forNumber(int value) {
+      switch (value) {
+        case 1:
+          return AGENT_URI;
+        case 2:
+          return AGENT_CONTENT;
+        case 0:
+          return AGENT_NOT_SET;
+        default:
+          return null;
+      }
+    }
+
+    public int getNumber() {
+      return this.value;
+    }
+  };
+
+  public AgentCase getAgentCase() {
+    return AgentCase.forNumber(agentCase_);
+  }
+
+  public static final int AGENT_URI_FIELD_NUMBER = 1;
+  /**
+   *
+   *
+   * <pre>
+   * The URI to a file containing the exported agent. This field is populated
+   * only if `agent_uri` is specified in [ExportAgentRequest][google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest].
+   * </pre>
+   *
+   * <code>string agent_uri = 1;</code>
+   *
+   * @return The agentUri.
+   */
+  public java.lang.String getAgentUri() {
+    java.lang.Object ref = "";
+    if (agentCase_ == 1) {
+      ref = agent_;
+    }
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      if (agentCase_ == 1) {
+        agent_ = s;
+      }
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The URI to a file containing the exported agent. This field is populated
+   * only if `agent_uri` is specified in [ExportAgentRequest][google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest].
+   * </pre>
+   *
+   * <code>string agent_uri = 1;</code>
+   *
+   * @return The bytes for agentUri.
+   */
+  public com.google.protobuf.ByteString getAgentUriBytes() {
+    java.lang.Object ref = "";
+    if (agentCase_ == 1) {
+      ref = agent_;
+    }
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      if (agentCase_ == 1) {
+        agent_ = b;
+      }
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int AGENT_CONTENT_FIELD_NUMBER = 2;
+  /**
+   *
+   *
+   * <pre>
+   * Uncompressed raw byte content for agent.
+   * </pre>
+   *
+   * <code>bytes agent_content = 2;</code>
+   *
+   * @return The agentContent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getAgentContent() {
+    if (agentCase_ == 2) {
+      return (com.google.protobuf.ByteString) agent_;
+    }
+    return com.google.protobuf.ByteString.EMPTY;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (agentCase_ == 1) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, agent_);
+    }
+    if (agentCase_ == 2) {
+      output.writeBytes(2, (com.google.protobuf.ByteString) agent_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (agentCase_ == 1) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, agent_);
+    }
+    if (agentCase_ == 2) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeBytesSize(
+              2, (com.google.protobuf.ByteString) agent_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse other =
+        (com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse) obj;
+
+    if (!getAgentCase().equals(other.getAgentCase())) return false;
+    switch (agentCase_) {
+      case 1:
+        if (!getAgentUri().equals(other.getAgentUri())) return false;
+        break;
+      case 2:
+        if (!getAgentContent().equals(other.getAgentContent())) return false;
+        break;
+      case 0:
+      default:
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    switch (agentCase_) {
+      case 1:
+        hash = (37 * hash) + AGENT_URI_FIELD_NUMBER;
+        hash = (53 * hash) + getAgentUri().hashCode();
+        break;
+      case 2:
+        hash = (37 * hash) + AGENT_CONTENT_FIELD_NUMBER;
+        hash = (53 * hash) + getAgentContent().hashCode();
+        break;
+      case 0:
+      default:
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The response message for [Agents.ExportAgent][google.cloud.dialogflow.cx.v3beta1.Agents.ExportAgent].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse)
+      com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ExportAgentResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ExportAgentResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      agentCase_ = 0;
+      agent_ = null;
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ExportAgentResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse(this);
+      if (agentCase_ == 1) {
+        result.agent_ = agent_;
+      }
+      if (agentCase_ == 2) {
+        result.agent_ = agent_;
+      }
+      result.agentCase_ = agentCase_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse.getDefaultInstance())
+        return this;
+      switch (other.getAgentCase()) {
+        case AGENT_URI:
+          {
+            agentCase_ = 1;
+            agent_ = other.agent_;
+            onChanged();
+            break;
+          }
+        case AGENT_CONTENT:
+          {
+            setAgentContent(other.getAgentContent());
+            break;
+          }
+        case AGENT_NOT_SET:
+          {
+            break;
+          }
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int agentCase_ = 0;
+    private java.lang.Object agent_;
+
+    public AgentCase getAgentCase() {
+      return AgentCase.forNumber(agentCase_);
+    }
+
+    public Builder clearAgent() {
+      agentCase_ = 0;
+      agent_ = null;
+      onChanged();
+      return this;
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * The URI to a file containing the exported agent. This field is populated
+     * only if `agent_uri` is specified in [ExportAgentRequest][google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest].
+     * </pre>
+     *
+     * <code>string agent_uri = 1;</code>
+     *
+     * @return The agentUri.
+     */
+    @java.lang.Override
+    public java.lang.String getAgentUri() {
+      java.lang.Object ref = "";
+      if (agentCase_ == 1) {
+        ref = agent_;
+      }
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (agentCase_ == 1) {
+          agent_ = s;
+        }
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The URI to a file containing the exported agent. This field is populated
+     * only if `agent_uri` is specified in [ExportAgentRequest][google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest].
+     * </pre>
+     *
+     * <code>string agent_uri = 1;</code>
+     *
+     * @return The bytes for agentUri.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getAgentUriBytes() {
+      java.lang.Object ref = "";
+      if (agentCase_ == 1) {
+        ref = agent_;
+      }
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        if (agentCase_ == 1) {
+          agent_ = b;
+        }
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The URI to a file containing the exported agent. This field is populated
+     * only if `agent_uri` is specified in [ExportAgentRequest][google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest].
+     * </pre>
+     *
+     * <code>string agent_uri = 1;</code>
+     *
+     * @param value The agentUri to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAgentUri(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      agentCase_ = 1;
+      agent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The URI to a file containing the exported agent. This field is populated
+     * only if `agent_uri` is specified in [ExportAgentRequest][google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest].
+     * </pre>
+     *
+     * <code>string agent_uri = 1;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearAgentUri() {
+      if (agentCase_ == 1) {
+        agentCase_ = 0;
+        agent_ = null;
+        onChanged();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The URI to a file containing the exported agent. This field is populated
+     * only if `agent_uri` is specified in [ExportAgentRequest][google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest].
+     * </pre>
+     *
+     * <code>string agent_uri = 1;</code>
+     *
+     * @param value The bytes for agentUri to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAgentUriBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      agentCase_ = 1;
+      agent_ = value;
+      onChanged();
+      return this;
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Uncompressed raw byte content for agent.
+     * </pre>
+     *
+     * <code>bytes agent_content = 2;</code>
+     *
+     * @return The agentContent.
+     */
+    public com.google.protobuf.ByteString getAgentContent() {
+      if (agentCase_ == 2) {
+        return (com.google.protobuf.ByteString) agent_;
+      }
+      return com.google.protobuf.ByteString.EMPTY;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Uncompressed raw byte content for agent.
+     * </pre>
+     *
+     * <code>bytes agent_content = 2;</code>
+     *
+     * @param value The agentContent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAgentContent(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      agentCase_ = 2;
+      agent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Uncompressed raw byte content for agent.
+     * </pre>
+     *
+     * <code>bytes agent_content = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearAgentContent() {
+      if (agentCase_ == 2) {
+        agentCase_ = 0;
+        agent_ = null;
+        onChanged();
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ExportAgentResponse> PARSER =
+      new com.google.protobuf.AbstractParser<ExportAgentResponse>() {
+        @java.lang.Override
+        public ExportAgentResponse parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ExportAgentResponse(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ExportAgentResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ExportAgentResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ExportAgentResponseOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ExportAgentResponseOrBuilder.java
new file mode 100644
index 000000000..c3a8774a5
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ExportAgentResponseOrBuilder.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ExportAgentResponseOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The URI to a file containing the exported agent. This field is populated
+   * only if `agent_uri` is specified in [ExportAgentRequest][google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest].
+   * </pre>
+   *
+   * <code>string agent_uri = 1;</code>
+   *
+   * @return The agentUri.
+   */
+  java.lang.String getAgentUri();
+  /**
+   *
+   *
+   * <pre>
+   * The URI to a file containing the exported agent. This field is populated
+   * only if `agent_uri` is specified in [ExportAgentRequest][google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest].
+   * </pre>
+   *
+   * <code>string agent_uri = 1;</code>
+   *
+   * @return The bytes for agentUri.
+   */
+  com.google.protobuf.ByteString getAgentUriBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Uncompressed raw byte content for agent.
+   * </pre>
+   *
+   * <code>bytes agent_content = 2;</code>
+   *
+   * @return The agentContent.
+   */
+  com.google.protobuf.ByteString getAgentContent();
+
+  public com.google.cloud.dialogflow.cx.v3beta1.ExportAgentResponse.AgentCase getAgentCase();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Flow.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Flow.java
new file mode 100644
index 000000000..e4ddacffb
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Flow.java
@@ -0,0 +1,2814 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/flow.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Flows represents the conversation flows when you build your chatbot agent.
+ * A flow consists of many pages connected by the transition routes.
+ * Conversations always start with the built-in Start Flow (with an all-0 ID).
+ * Transition routes can direct the conversation session from the current flow
+ * (parent flow) to another flow (sub flow). When the sub flow is finished,
+ * Dialogflow will bring the session back to the parent flow, where the sub flow
+ * is started.
+ * Usually, when a transition route is followed by a matched intent, the intent
+ * will be "consumed". This means the intent won't activate more transition
+ * routes. However, when the followed transition route moves the conversation
+ * session into a different flow, the matched intent can be carried over and to
+ * be consumed in the target flow.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Flow}
+ */
+public final class Flow extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.Flow)
+    FlowOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use Flow.newBuilder() to construct.
+  private Flow(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private Flow() {
+    name_ = "";
+    displayName_ = "";
+    description_ = "";
+    transitionRoutes_ = java.util.Collections.emptyList();
+    eventHandlers_ = java.util.Collections.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new Flow();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private Flow(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              displayName_ = s;
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              description_ = s;
+              break;
+            }
+          case 34:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                transitionRoutes_ =
+                    new java.util.ArrayList<
+                        com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              transitionRoutes_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.parser(),
+                      extensionRegistry));
+              break;
+            }
+          case 82:
+            {
+              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
+                eventHandlers_ =
+                    new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.EventHandler>();
+                mutable_bitField0_ |= 0x00000002;
+              }
+              eventHandlers_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.EventHandler.parser(),
+                      extensionRegistry));
+              break;
+            }
+          case 90:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.NluSettings.Builder subBuilder = null;
+              if (nluSettings_ != null) {
+                subBuilder = nluSettings_.toBuilder();
+              }
+              nluSettings_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.NluSettings.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(nluSettings_);
+                nluSettings_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        transitionRoutes_ = java.util.Collections.unmodifiableList(transitionRoutes_);
+      }
+      if (((mutable_bitField0_ & 0x00000002) != 0)) {
+        eventHandlers_ = java.util.Collections.unmodifiableList(eventHandlers_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_Flow_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_Flow_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.Flow.class,
+            com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the flow.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the flow.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int DISPLAY_NAME_FIELD_NUMBER = 2;
+  private volatile java.lang.Object displayName_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the flow.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The displayName.
+   */
+  @java.lang.Override
+  public java.lang.String getDisplayName() {
+    java.lang.Object ref = displayName_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      displayName_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the flow.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for displayName.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getDisplayNameBytes() {
+    java.lang.Object ref = displayName_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      displayName_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int DESCRIPTION_FIELD_NUMBER = 3;
+  private volatile java.lang.Object description_;
+  /**
+   *
+   *
+   * <pre>
+   * The description of the flow. The maximum length is 500 characters. If
+   * exceeded, the request is rejected.
+   * </pre>
+   *
+   * <code>string description = 3;</code>
+   *
+   * @return The description.
+   */
+  @java.lang.Override
+  public java.lang.String getDescription() {
+    java.lang.Object ref = description_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      description_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The description of the flow. The maximum length is 500 characters. If
+   * exceeded, the request is rejected.
+   * </pre>
+   *
+   * <code>string description = 3;</code>
+   *
+   * @return The bytes for description.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getDescriptionBytes() {
+    java.lang.Object ref = description_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      description_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int TRANSITION_ROUTES_FIELD_NUMBER = 4;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute> transitionRoutes_;
+  /**
+   *
+   *
+   * <pre>
+   * A flow's transition routes serve two purposes:
+   * *   They are responsible for matching the user's first utterances in the
+   * flow.
+   * *   They are inherited by every page's [transition
+   * routes][Page.transition_routes] and can support use cases such as the user
+   * saying "help" or "can I talk to a human?", which can be handled in a common
+   * way regardless of the current page. Transition routes defined in the page
+   * have higher priority than those defined in the flow.
+   * TransitionRoutes are evalauted in the following order:
+   * *   TransitionRoutes with intent specified..
+   * *   TransitionRoutes with only condition specified.
+   * TransitionRoutes with intent specified are inherited by pages in the flow.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute>
+      getTransitionRoutesList() {
+    return transitionRoutes_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A flow's transition routes serve two purposes:
+   * *   They are responsible for matching the user's first utterances in the
+   * flow.
+   * *   They are inherited by every page's [transition
+   * routes][Page.transition_routes] and can support use cases such as the user
+   * saying "help" or "can I talk to a human?", which can be handled in a common
+   * way regardless of the current page. Transition routes defined in the page
+   * have higher priority than those defined in the flow.
+   * TransitionRoutes are evalauted in the following order:
+   * *   TransitionRoutes with intent specified..
+   * *   TransitionRoutes with only condition specified.
+   * TransitionRoutes with intent specified are inherited by pages in the flow.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder>
+      getTransitionRoutesOrBuilderList() {
+    return transitionRoutes_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A flow's transition routes serve two purposes:
+   * *   They are responsible for matching the user's first utterances in the
+   * flow.
+   * *   They are inherited by every page's [transition
+   * routes][Page.transition_routes] and can support use cases such as the user
+   * saying "help" or "can I talk to a human?", which can be handled in a common
+   * way regardless of the current page. Transition routes defined in the page
+   * have higher priority than those defined in the flow.
+   * TransitionRoutes are evalauted in the following order:
+   * *   TransitionRoutes with intent specified..
+   * *   TransitionRoutes with only condition specified.
+   * TransitionRoutes with intent specified are inherited by pages in the flow.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+   * </code>
+   */
+  @java.lang.Override
+  public int getTransitionRoutesCount() {
+    return transitionRoutes_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A flow's transition routes serve two purposes:
+   * *   They are responsible for matching the user's first utterances in the
+   * flow.
+   * *   They are inherited by every page's [transition
+   * routes][Page.transition_routes] and can support use cases such as the user
+   * saying "help" or "can I talk to a human?", which can be handled in a common
+   * way regardless of the current page. Transition routes defined in the page
+   * have higher priority than those defined in the flow.
+   * TransitionRoutes are evalauted in the following order:
+   * *   TransitionRoutes with intent specified..
+   * *   TransitionRoutes with only condition specified.
+   * TransitionRoutes with intent specified are inherited by pages in the flow.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute getTransitionRoutes(int index) {
+    return transitionRoutes_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A flow's transition routes serve two purposes:
+   * *   They are responsible for matching the user's first utterances in the
+   * flow.
+   * *   They are inherited by every page's [transition
+   * routes][Page.transition_routes] and can support use cases such as the user
+   * saying "help" or "can I talk to a human?", which can be handled in a common
+   * way regardless of the current page. Transition routes defined in the page
+   * have higher priority than those defined in the flow.
+   * TransitionRoutes are evalauted in the following order:
+   * *   TransitionRoutes with intent specified..
+   * *   TransitionRoutes with only condition specified.
+   * TransitionRoutes with intent specified are inherited by pages in the flow.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder
+      getTransitionRoutesOrBuilder(int index) {
+    return transitionRoutes_.get(index);
+  }
+
+  public static final int EVENT_HANDLERS_FIELD_NUMBER = 10;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EventHandler> eventHandlers_;
+  /**
+   *
+   *
+   * <pre>
+   * A flow's event handlers serve two purposes:
+   * *   They are responsible for handling events (e.g. no match,
+   * webhook errors) in the flow.
+   * *   They are inherited by every page's [event
+   * handlers][Page.event_handlers], which can be used to handle common events
+   * regardless of the current page. Event handlers defined in the page
+   * have higher priority than those defined in the flow.
+   * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+   * evaluated on a first-match basis. The first one that matches the event
+   * get executed, with the rest being ignored.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EventHandler>
+      getEventHandlersList() {
+    return eventHandlers_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A flow's event handlers serve two purposes:
+   * *   They are responsible for handling events (e.g. no match,
+   * webhook errors) in the flow.
+   * *   They are inherited by every page's [event
+   * handlers][Page.event_handlers], which can be used to handle common events
+   * regardless of the current page. Event handlers defined in the page
+   * have higher priority than those defined in the flow.
+   * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+   * evaluated on a first-match basis. The first one that matches the event
+   * get executed, with the rest being ignored.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder>
+      getEventHandlersOrBuilderList() {
+    return eventHandlers_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A flow's event handlers serve two purposes:
+   * *   They are responsible for handling events (e.g. no match,
+   * webhook errors) in the flow.
+   * *   They are inherited by every page's [event
+   * handlers][Page.event_handlers], which can be used to handle common events
+   * regardless of the current page. Event handlers defined in the page
+   * have higher priority than those defined in the flow.
+   * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+   * evaluated on a first-match basis. The first one that matches the event
+   * get executed, with the rest being ignored.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+   */
+  @java.lang.Override
+  public int getEventHandlersCount() {
+    return eventHandlers_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A flow's event handlers serve two purposes:
+   * *   They are responsible for handling events (e.g. no match,
+   * webhook errors) in the flow.
+   * *   They are inherited by every page's [event
+   * handlers][Page.event_handlers], which can be used to handle common events
+   * regardless of the current page. Event handlers defined in the page
+   * have higher priority than those defined in the flow.
+   * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+   * evaluated on a first-match basis. The first one that matches the event
+   * get executed, with the rest being ignored.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.EventHandler getEventHandlers(int index) {
+    return eventHandlers_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A flow's event handlers serve two purposes:
+   * *   They are responsible for handling events (e.g. no match,
+   * webhook errors) in the flow.
+   * *   They are inherited by every page's [event
+   * handlers][Page.event_handlers], which can be used to handle common events
+   * regardless of the current page. Event handlers defined in the page
+   * have higher priority than those defined in the flow.
+   * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+   * evaluated on a first-match basis. The first one that matches the event
+   * get executed, with the rest being ignored.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder getEventHandlersOrBuilder(
+      int index) {
+    return eventHandlers_.get(index);
+  }
+
+  public static final int NLU_SETTINGS_FIELD_NUMBER = 11;
+  private com.google.cloud.dialogflow.cx.v3beta1.NluSettings nluSettings_;
+  /**
+   *
+   *
+   * <pre>
+   * NLU related settings of the flow.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 11;</code>
+   *
+   * @return Whether the nluSettings field is set.
+   */
+  @java.lang.Override
+  public boolean hasNluSettings() {
+    return nluSettings_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * NLU related settings of the flow.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 11;</code>
+   *
+   * @return The nluSettings.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.NluSettings getNluSettings() {
+    return nluSettings_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.NluSettings.getDefaultInstance()
+        : nluSettings_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * NLU related settings of the flow.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 11;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.NluSettingsOrBuilder getNluSettingsOrBuilder() {
+    return getNluSettings();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (!getDisplayNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, displayName_);
+    }
+    if (!getDescriptionBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, description_);
+    }
+    for (int i = 0; i < transitionRoutes_.size(); i++) {
+      output.writeMessage(4, transitionRoutes_.get(i));
+    }
+    for (int i = 0; i < eventHandlers_.size(); i++) {
+      output.writeMessage(10, eventHandlers_.get(i));
+    }
+    if (nluSettings_ != null) {
+      output.writeMessage(11, getNluSettings());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (!getDisplayNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, displayName_);
+    }
+    if (!getDescriptionBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, description_);
+    }
+    for (int i = 0; i < transitionRoutes_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, transitionRoutes_.get(i));
+    }
+    for (int i = 0; i < eventHandlers_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(10, eventHandlers_.get(i));
+    }
+    if (nluSettings_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(11, getNluSettings());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.Flow)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.Flow other =
+        (com.google.cloud.dialogflow.cx.v3beta1.Flow) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!getDisplayName().equals(other.getDisplayName())) return false;
+    if (!getDescription().equals(other.getDescription())) return false;
+    if (!getTransitionRoutesList().equals(other.getTransitionRoutesList())) return false;
+    if (!getEventHandlersList().equals(other.getEventHandlersList())) return false;
+    if (hasNluSettings() != other.hasNluSettings()) return false;
+    if (hasNluSettings()) {
+      if (!getNluSettings().equals(other.getNluSettings())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + DISPLAY_NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getDisplayName().hashCode();
+    hash = (37 * hash) + DESCRIPTION_FIELD_NUMBER;
+    hash = (53 * hash) + getDescription().hashCode();
+    if (getTransitionRoutesCount() > 0) {
+      hash = (37 * hash) + TRANSITION_ROUTES_FIELD_NUMBER;
+      hash = (53 * hash) + getTransitionRoutesList().hashCode();
+    }
+    if (getEventHandlersCount() > 0) {
+      hash = (37 * hash) + EVENT_HANDLERS_FIELD_NUMBER;
+      hash = (53 * hash) + getEventHandlersList().hashCode();
+    }
+    if (hasNluSettings()) {
+      hash = (37 * hash) + NLU_SETTINGS_FIELD_NUMBER;
+      hash = (53 * hash) + getNluSettings().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Flow parseFrom(java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Flow parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Flow parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Flow parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Flow parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Flow parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Flow parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Flow parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Flow parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Flow parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Flow parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Flow parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.cx.v3beta1.Flow prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Flows represents the conversation flows when you build your chatbot agent.
+   * A flow consists of many pages connected by the transition routes.
+   * Conversations always start with the built-in Start Flow (with an all-0 ID).
+   * Transition routes can direct the conversation session from the current flow
+   * (parent flow) to another flow (sub flow). When the sub flow is finished,
+   * Dialogflow will bring the session back to the parent flow, where the sub flow
+   * is started.
+   * Usually, when a transition route is followed by a matched intent, the intent
+   * will be "consumed". This means the intent won't activate more transition
+   * routes. However, when the followed transition route moves the conversation
+   * session into a different flow, the matched intent can be carried over and to
+   * be consumed in the target flow.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Flow}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.Flow)
+      com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Flow_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Flow_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.Flow.class,
+              com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.Flow.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getTransitionRoutesFieldBuilder();
+        getEventHandlersFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      displayName_ = "";
+
+      description_ = "";
+
+      if (transitionRoutesBuilder_ == null) {
+        transitionRoutes_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        transitionRoutesBuilder_.clear();
+      }
+      if (eventHandlersBuilder_ == null) {
+        eventHandlers_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000002);
+      } else {
+        eventHandlersBuilder_.clear();
+      }
+      if (nluSettingsBuilder_ == null) {
+        nluSettings_ = null;
+      } else {
+        nluSettings_ = null;
+        nluSettingsBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Flow_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Flow getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.Flow.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Flow build() {
+      com.google.cloud.dialogflow.cx.v3beta1.Flow result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Flow buildPartial() {
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+          new com.google.cloud.dialogflow.cx.v3beta1.Flow(this);
+      int from_bitField0_ = bitField0_;
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+      result.displayName_ = displayName_;
+      result.description_ = description_;
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+          bitField0_ = (bitField0_ & ~0x00000001);
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+        result.transitionRoutes_ = transitionRoutes_;
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+        result.transitionRoutes_ = transitionRoutesBuilder_.build();
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+          bitField0_ = (bitField0_ & ~0x00000002);
+        }
+        result.eventHandlers_ = eventHandlers_;
+      } else {
+        result.eventHandlers_ = eventHandlersBuilder_.build();
+      }
+      if (nluSettingsBuilder_ == null) {
+        result.nluSettings_ = nluSettings_;
+      } else {
+        result.nluSettings_ = nluSettingsBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.Flow) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.Flow) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.Flow other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.Flow.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getDisplayName().isEmpty()) {
+        displayName_ = other.displayName_;
+        onChanged();
+      }
+      if (!other.getDescription().isEmpty()) {
+        description_ = other.description_;
+        onChanged();
+      }
+      if (transitionRoutesBuilder_ == null) {
+        if (!other.transitionRoutes_.isEmpty()) {
+          if (transitionRoutes_.isEmpty()) {
+            transitionRoutes_ = other.transitionRoutes_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureTransitionRoutesIsMutable();
+            transitionRoutes_.addAll(other.transitionRoutes_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.transitionRoutes_.isEmpty()) {
+          if (transitionRoutesBuilder_.isEmpty()) {
+            transitionRoutesBuilder_.dispose();
+            transitionRoutesBuilder_ = null;
+            transitionRoutes_ = other.transitionRoutes_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            transitionRoutesBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getTransitionRoutesFieldBuilder()
+                    : null;
+          } else {
+            transitionRoutesBuilder_.addAllMessages(other.transitionRoutes_);
+          }
+        }
+      }
+      if (eventHandlersBuilder_ == null) {
+        if (!other.eventHandlers_.isEmpty()) {
+          if (eventHandlers_.isEmpty()) {
+            eventHandlers_ = other.eventHandlers_;
+            bitField0_ = (bitField0_ & ~0x00000002);
+          } else {
+            ensureEventHandlersIsMutable();
+            eventHandlers_.addAll(other.eventHandlers_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.eventHandlers_.isEmpty()) {
+          if (eventHandlersBuilder_.isEmpty()) {
+            eventHandlersBuilder_.dispose();
+            eventHandlersBuilder_ = null;
+            eventHandlers_ = other.eventHandlers_;
+            bitField0_ = (bitField0_ & ~0x00000002);
+            eventHandlersBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getEventHandlersFieldBuilder()
+                    : null;
+          } else {
+            eventHandlersBuilder_.addAllMessages(other.eventHandlers_);
+          }
+        }
+      }
+      if (other.hasNluSettings()) {
+        mergeNluSettings(other.getNluSettings());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.Flow parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.dialogflow.cx.v3beta1.Flow) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the flow.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the flow.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the flow.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the flow.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the flow.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object displayName_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the flow.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The displayName.
+     */
+    public java.lang.String getDisplayName() {
+      java.lang.Object ref = displayName_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        displayName_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the flow.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for displayName.
+     */
+    public com.google.protobuf.ByteString getDisplayNameBytes() {
+      java.lang.Object ref = displayName_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        displayName_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the flow.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The displayName to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDisplayName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      displayName_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the flow.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearDisplayName() {
+
+      displayName_ = getDefaultInstance().getDisplayName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the flow.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The bytes for displayName to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDisplayNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      displayName_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object description_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The description of the flow. The maximum length is 500 characters. If
+     * exceeded, the request is rejected.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     *
+     * @return The description.
+     */
+    public java.lang.String getDescription() {
+      java.lang.Object ref = description_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        description_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The description of the flow. The maximum length is 500 characters. If
+     * exceeded, the request is rejected.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     *
+     * @return The bytes for description.
+     */
+    public com.google.protobuf.ByteString getDescriptionBytes() {
+      java.lang.Object ref = description_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        description_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The description of the flow. The maximum length is 500 characters. If
+     * exceeded, the request is rejected.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     *
+     * @param value The description to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDescription(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      description_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The description of the flow. The maximum length is 500 characters. If
+     * exceeded, the request is rejected.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearDescription() {
+
+      description_ = getDefaultInstance().getDescription();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The description of the flow. The maximum length is 500 characters. If
+     * exceeded, the request is rejected.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     *
+     * @param value The bytes for description to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDescriptionBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      description_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute>
+        transitionRoutes_ = java.util.Collections.emptyList();
+
+    private void ensureTransitionRoutesIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        transitionRoutes_ =
+            new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute>(
+                transitionRoutes_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder>
+        transitionRoutesBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition routes serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * routes][Page.transition_routes] and can support use cases such as the user
+     * saying "help" or "can I talk to a human?", which can be handled in a common
+     * way regardless of the current page. Transition routes defined in the page
+     * have higher priority than those defined in the flow.
+     * TransitionRoutes are evalauted in the following order:
+     * *   TransitionRoutes with intent specified..
+     * *   TransitionRoutes with only condition specified.
+     * TransitionRoutes with intent specified are inherited by pages in the flow.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute>
+        getTransitionRoutesList() {
+      if (transitionRoutesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(transitionRoutes_);
+      } else {
+        return transitionRoutesBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition routes serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * routes][Page.transition_routes] and can support use cases such as the user
+     * saying "help" or "can I talk to a human?", which can be handled in a common
+     * way regardless of the current page. Transition routes defined in the page
+     * have higher priority than those defined in the flow.
+     * TransitionRoutes are evalauted in the following order:
+     * *   TransitionRoutes with intent specified..
+     * *   TransitionRoutes with only condition specified.
+     * TransitionRoutes with intent specified are inherited by pages in the flow.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+     * </code>
+     */
+    public int getTransitionRoutesCount() {
+      if (transitionRoutesBuilder_ == null) {
+        return transitionRoutes_.size();
+      } else {
+        return transitionRoutesBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition routes serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * routes][Page.transition_routes] and can support use cases such as the user
+     * saying "help" or "can I talk to a human?", which can be handled in a common
+     * way regardless of the current page. Transition routes defined in the page
+     * have higher priority than those defined in the flow.
+     * TransitionRoutes are evalauted in the following order:
+     * *   TransitionRoutes with intent specified..
+     * *   TransitionRoutes with only condition specified.
+     * TransitionRoutes with intent specified are inherited by pages in the flow.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute getTransitionRoutes(int index) {
+      if (transitionRoutesBuilder_ == null) {
+        return transitionRoutes_.get(index);
+      } else {
+        return transitionRoutesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition routes serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * routes][Page.transition_routes] and can support use cases such as the user
+     * saying "help" or "can I talk to a human?", which can be handled in a common
+     * way regardless of the current page. Transition routes defined in the page
+     * have higher priority than those defined in the flow.
+     * TransitionRoutes are evalauted in the following order:
+     * *   TransitionRoutes with intent specified..
+     * *   TransitionRoutes with only condition specified.
+     * TransitionRoutes with intent specified are inherited by pages in the flow.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+     * </code>
+     */
+    public Builder setTransitionRoutes(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute value) {
+      if (transitionRoutesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTransitionRoutesIsMutable();
+        transitionRoutes_.set(index, value);
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition routes serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * routes][Page.transition_routes] and can support use cases such as the user
+     * saying "help" or "can I talk to a human?", which can be handled in a common
+     * way regardless of the current page. Transition routes defined in the page
+     * have higher priority than those defined in the flow.
+     * TransitionRoutes are evalauted in the following order:
+     * *   TransitionRoutes with intent specified..
+     * *   TransitionRoutes with only condition specified.
+     * TransitionRoutes with intent specified are inherited by pages in the flow.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+     * </code>
+     */
+    public Builder setTransitionRoutes(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder builderForValue) {
+      if (transitionRoutesBuilder_ == null) {
+        ensureTransitionRoutesIsMutable();
+        transitionRoutes_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition routes serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * routes][Page.transition_routes] and can support use cases such as the user
+     * saying "help" or "can I talk to a human?", which can be handled in a common
+     * way regardless of the current page. Transition routes defined in the page
+     * have higher priority than those defined in the flow.
+     * TransitionRoutes are evalauted in the following order:
+     * *   TransitionRoutes with intent specified..
+     * *   TransitionRoutes with only condition specified.
+     * TransitionRoutes with intent specified are inherited by pages in the flow.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+     * </code>
+     */
+    public Builder addTransitionRoutes(
+        com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute value) {
+      if (transitionRoutesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTransitionRoutesIsMutable();
+        transitionRoutes_.add(value);
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition routes serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * routes][Page.transition_routes] and can support use cases such as the user
+     * saying "help" or "can I talk to a human?", which can be handled in a common
+     * way regardless of the current page. Transition routes defined in the page
+     * have higher priority than those defined in the flow.
+     * TransitionRoutes are evalauted in the following order:
+     * *   TransitionRoutes with intent specified..
+     * *   TransitionRoutes with only condition specified.
+     * TransitionRoutes with intent specified are inherited by pages in the flow.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+     * </code>
+     */
+    public Builder addTransitionRoutes(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute value) {
+      if (transitionRoutesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTransitionRoutesIsMutable();
+        transitionRoutes_.add(index, value);
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition routes serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * routes][Page.transition_routes] and can support use cases such as the user
+     * saying "help" or "can I talk to a human?", which can be handled in a common
+     * way regardless of the current page. Transition routes defined in the page
+     * have higher priority than those defined in the flow.
+     * TransitionRoutes are evalauted in the following order:
+     * *   TransitionRoutes with intent specified..
+     * *   TransitionRoutes with only condition specified.
+     * TransitionRoutes with intent specified are inherited by pages in the flow.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+     * </code>
+     */
+    public Builder addTransitionRoutes(
+        com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder builderForValue) {
+      if (transitionRoutesBuilder_ == null) {
+        ensureTransitionRoutesIsMutable();
+        transitionRoutes_.add(builderForValue.build());
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition routes serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * routes][Page.transition_routes] and can support use cases such as the user
+     * saying "help" or "can I talk to a human?", which can be handled in a common
+     * way regardless of the current page. Transition routes defined in the page
+     * have higher priority than those defined in the flow.
+     * TransitionRoutes are evalauted in the following order:
+     * *   TransitionRoutes with intent specified..
+     * *   TransitionRoutes with only condition specified.
+     * TransitionRoutes with intent specified are inherited by pages in the flow.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+     * </code>
+     */
+    public Builder addTransitionRoutes(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder builderForValue) {
+      if (transitionRoutesBuilder_ == null) {
+        ensureTransitionRoutesIsMutable();
+        transitionRoutes_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition routes serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * routes][Page.transition_routes] and can support use cases such as the user
+     * saying "help" or "can I talk to a human?", which can be handled in a common
+     * way regardless of the current page. Transition routes defined in the page
+     * have higher priority than those defined in the flow.
+     * TransitionRoutes are evalauted in the following order:
+     * *   TransitionRoutes with intent specified..
+     * *   TransitionRoutes with only condition specified.
+     * TransitionRoutes with intent specified are inherited by pages in the flow.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+     * </code>
+     */
+    public Builder addAllTransitionRoutes(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute>
+            values) {
+      if (transitionRoutesBuilder_ == null) {
+        ensureTransitionRoutesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, transitionRoutes_);
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition routes serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * routes][Page.transition_routes] and can support use cases such as the user
+     * saying "help" or "can I talk to a human?", which can be handled in a common
+     * way regardless of the current page. Transition routes defined in the page
+     * have higher priority than those defined in the flow.
+     * TransitionRoutes are evalauted in the following order:
+     * *   TransitionRoutes with intent specified..
+     * *   TransitionRoutes with only condition specified.
+     * TransitionRoutes with intent specified are inherited by pages in the flow.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+     * </code>
+     */
+    public Builder clearTransitionRoutes() {
+      if (transitionRoutesBuilder_ == null) {
+        transitionRoutes_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition routes serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * routes][Page.transition_routes] and can support use cases such as the user
+     * saying "help" or "can I talk to a human?", which can be handled in a common
+     * way regardless of the current page. Transition routes defined in the page
+     * have higher priority than those defined in the flow.
+     * TransitionRoutes are evalauted in the following order:
+     * *   TransitionRoutes with intent specified..
+     * *   TransitionRoutes with only condition specified.
+     * TransitionRoutes with intent specified are inherited by pages in the flow.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+     * </code>
+     */
+    public Builder removeTransitionRoutes(int index) {
+      if (transitionRoutesBuilder_ == null) {
+        ensureTransitionRoutesIsMutable();
+        transitionRoutes_.remove(index);
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition routes serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * routes][Page.transition_routes] and can support use cases such as the user
+     * saying "help" or "can I talk to a human?", which can be handled in a common
+     * way regardless of the current page. Transition routes defined in the page
+     * have higher priority than those defined in the flow.
+     * TransitionRoutes are evalauted in the following order:
+     * *   TransitionRoutes with intent specified..
+     * *   TransitionRoutes with only condition specified.
+     * TransitionRoutes with intent specified are inherited by pages in the flow.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder
+        getTransitionRoutesBuilder(int index) {
+      return getTransitionRoutesFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition routes serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * routes][Page.transition_routes] and can support use cases such as the user
+     * saying "help" or "can I talk to a human?", which can be handled in a common
+     * way regardless of the current page. Transition routes defined in the page
+     * have higher priority than those defined in the flow.
+     * TransitionRoutes are evalauted in the following order:
+     * *   TransitionRoutes with intent specified..
+     * *   TransitionRoutes with only condition specified.
+     * TransitionRoutes with intent specified are inherited by pages in the flow.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder
+        getTransitionRoutesOrBuilder(int index) {
+      if (transitionRoutesBuilder_ == null) {
+        return transitionRoutes_.get(index);
+      } else {
+        return transitionRoutesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition routes serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * routes][Page.transition_routes] and can support use cases such as the user
+     * saying "help" or "can I talk to a human?", which can be handled in a common
+     * way regardless of the current page. Transition routes defined in the page
+     * have higher priority than those defined in the flow.
+     * TransitionRoutes are evalauted in the following order:
+     * *   TransitionRoutes with intent specified..
+     * *   TransitionRoutes with only condition specified.
+     * TransitionRoutes with intent specified are inherited by pages in the flow.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+     * </code>
+     */
+    public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder>
+        getTransitionRoutesOrBuilderList() {
+      if (transitionRoutesBuilder_ != null) {
+        return transitionRoutesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(transitionRoutes_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition routes serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * routes][Page.transition_routes] and can support use cases such as the user
+     * saying "help" or "can I talk to a human?", which can be handled in a common
+     * way regardless of the current page. Transition routes defined in the page
+     * have higher priority than those defined in the flow.
+     * TransitionRoutes are evalauted in the following order:
+     * *   TransitionRoutes with intent specified..
+     * *   TransitionRoutes with only condition specified.
+     * TransitionRoutes with intent specified are inherited by pages in the flow.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder
+        addTransitionRoutesBuilder() {
+      return getTransitionRoutesFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition routes serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * routes][Page.transition_routes] and can support use cases such as the user
+     * saying "help" or "can I talk to a human?", which can be handled in a common
+     * way regardless of the current page. Transition routes defined in the page
+     * have higher priority than those defined in the flow.
+     * TransitionRoutes are evalauted in the following order:
+     * *   TransitionRoutes with intent specified..
+     * *   TransitionRoutes with only condition specified.
+     * TransitionRoutes with intent specified are inherited by pages in the flow.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder
+        addTransitionRoutesBuilder(int index) {
+      return getTransitionRoutesFieldBuilder()
+          .addBuilder(
+              index, com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition routes serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * routes][Page.transition_routes] and can support use cases such as the user
+     * saying "help" or "can I talk to a human?", which can be handled in a common
+     * way regardless of the current page. Transition routes defined in the page
+     * have higher priority than those defined in the flow.
+     * TransitionRoutes are evalauted in the following order:
+     * *   TransitionRoutes with intent specified..
+     * *   TransitionRoutes with only condition specified.
+     * TransitionRoutes with intent specified are inherited by pages in the flow.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder>
+        getTransitionRoutesBuilderList() {
+      return getTransitionRoutesFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder>
+        getTransitionRoutesFieldBuilder() {
+      if (transitionRoutesBuilder_ == null) {
+        transitionRoutesBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute,
+                com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder>(
+                transitionRoutes_,
+                ((bitField0_ & 0x00000001) != 0),
+                getParentForChildren(),
+                isClean());
+        transitionRoutes_ = null;
+      }
+      return transitionRoutesBuilder_;
+    }
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EventHandler> eventHandlers_ =
+        java.util.Collections.emptyList();
+
+    private void ensureEventHandlersIsMutable() {
+      if (!((bitField0_ & 0x00000002) != 0)) {
+        eventHandlers_ =
+            new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.EventHandler>(
+                eventHandlers_);
+        bitField0_ |= 0x00000002;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.EventHandler,
+            com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder>
+        eventHandlersBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * A flow's event handlers serve two purposes:
+     * *   They are responsible for handling events (e.g. no match,
+     * webhook errors) in the flow.
+     * *   They are inherited by every page's [event
+     * handlers][Page.event_handlers], which can be used to handle common events
+     * regardless of the current page. Event handlers defined in the page
+     * have higher priority than those defined in the flow.
+     * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+     * evaluated on a first-match basis. The first one that matches the event
+     * get executed, with the rest being ignored.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EventHandler>
+        getEventHandlersList() {
+      if (eventHandlersBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(eventHandlers_);
+      } else {
+        return eventHandlersBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's event handlers serve two purposes:
+     * *   They are responsible for handling events (e.g. no match,
+     * webhook errors) in the flow.
+     * *   They are inherited by every page's [event
+     * handlers][Page.event_handlers], which can be used to handle common events
+     * regardless of the current page. Event handlers defined in the page
+     * have higher priority than those defined in the flow.
+     * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+     * evaluated on a first-match basis. The first one that matches the event
+     * get executed, with the rest being ignored.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public int getEventHandlersCount() {
+      if (eventHandlersBuilder_ == null) {
+        return eventHandlers_.size();
+      } else {
+        return eventHandlersBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's event handlers serve two purposes:
+     * *   They are responsible for handling events (e.g. no match,
+     * webhook errors) in the flow.
+     * *   They are inherited by every page's [event
+     * handlers][Page.event_handlers], which can be used to handle common events
+     * regardless of the current page. Event handlers defined in the page
+     * have higher priority than those defined in the flow.
+     * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+     * evaluated on a first-match basis. The first one that matches the event
+     * get executed, with the rest being ignored.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EventHandler getEventHandlers(int index) {
+      if (eventHandlersBuilder_ == null) {
+        return eventHandlers_.get(index);
+      } else {
+        return eventHandlersBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's event handlers serve two purposes:
+     * *   They are responsible for handling events (e.g. no match,
+     * webhook errors) in the flow.
+     * *   They are inherited by every page's [event
+     * handlers][Page.event_handlers], which can be used to handle common events
+     * regardless of the current page. Event handlers defined in the page
+     * have higher priority than those defined in the flow.
+     * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+     * evaluated on a first-match basis. The first one that matches the event
+     * get executed, with the rest being ignored.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public Builder setEventHandlers(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.EventHandler value) {
+      if (eventHandlersBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEventHandlersIsMutable();
+        eventHandlers_.set(index, value);
+        onChanged();
+      } else {
+        eventHandlersBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's event handlers serve two purposes:
+     * *   They are responsible for handling events (e.g. no match,
+     * webhook errors) in the flow.
+     * *   They are inherited by every page's [event
+     * handlers][Page.event_handlers], which can be used to handle common events
+     * regardless of the current page. Event handlers defined in the page
+     * have higher priority than those defined in the flow.
+     * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+     * evaluated on a first-match basis. The first one that matches the event
+     * get executed, with the rest being ignored.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public Builder setEventHandlers(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder builderForValue) {
+      if (eventHandlersBuilder_ == null) {
+        ensureEventHandlersIsMutable();
+        eventHandlers_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        eventHandlersBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's event handlers serve two purposes:
+     * *   They are responsible for handling events (e.g. no match,
+     * webhook errors) in the flow.
+     * *   They are inherited by every page's [event
+     * handlers][Page.event_handlers], which can be used to handle common events
+     * regardless of the current page. Event handlers defined in the page
+     * have higher priority than those defined in the flow.
+     * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+     * evaluated on a first-match basis. The first one that matches the event
+     * get executed, with the rest being ignored.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public Builder addEventHandlers(com.google.cloud.dialogflow.cx.v3beta1.EventHandler value) {
+      if (eventHandlersBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEventHandlersIsMutable();
+        eventHandlers_.add(value);
+        onChanged();
+      } else {
+        eventHandlersBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's event handlers serve two purposes:
+     * *   They are responsible for handling events (e.g. no match,
+     * webhook errors) in the flow.
+     * *   They are inherited by every page's [event
+     * handlers][Page.event_handlers], which can be used to handle common events
+     * regardless of the current page. Event handlers defined in the page
+     * have higher priority than those defined in the flow.
+     * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+     * evaluated on a first-match basis. The first one that matches the event
+     * get executed, with the rest being ignored.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public Builder addEventHandlers(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.EventHandler value) {
+      if (eventHandlersBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEventHandlersIsMutable();
+        eventHandlers_.add(index, value);
+        onChanged();
+      } else {
+        eventHandlersBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's event handlers serve two purposes:
+     * *   They are responsible for handling events (e.g. no match,
+     * webhook errors) in the flow.
+     * *   They are inherited by every page's [event
+     * handlers][Page.event_handlers], which can be used to handle common events
+     * regardless of the current page. Event handlers defined in the page
+     * have higher priority than those defined in the flow.
+     * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+     * evaluated on a first-match basis. The first one that matches the event
+     * get executed, with the rest being ignored.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public Builder addEventHandlers(
+        com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder builderForValue) {
+      if (eventHandlersBuilder_ == null) {
+        ensureEventHandlersIsMutable();
+        eventHandlers_.add(builderForValue.build());
+        onChanged();
+      } else {
+        eventHandlersBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's event handlers serve two purposes:
+     * *   They are responsible for handling events (e.g. no match,
+     * webhook errors) in the flow.
+     * *   They are inherited by every page's [event
+     * handlers][Page.event_handlers], which can be used to handle common events
+     * regardless of the current page. Event handlers defined in the page
+     * have higher priority than those defined in the flow.
+     * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+     * evaluated on a first-match basis. The first one that matches the event
+     * get executed, with the rest being ignored.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public Builder addEventHandlers(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder builderForValue) {
+      if (eventHandlersBuilder_ == null) {
+        ensureEventHandlersIsMutable();
+        eventHandlers_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        eventHandlersBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's event handlers serve two purposes:
+     * *   They are responsible for handling events (e.g. no match,
+     * webhook errors) in the flow.
+     * *   They are inherited by every page's [event
+     * handlers][Page.event_handlers], which can be used to handle common events
+     * regardless of the current page. Event handlers defined in the page
+     * have higher priority than those defined in the flow.
+     * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+     * evaluated on a first-match basis. The first one that matches the event
+     * get executed, with the rest being ignored.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public Builder addAllEventHandlers(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.EventHandler> values) {
+      if (eventHandlersBuilder_ == null) {
+        ensureEventHandlersIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, eventHandlers_);
+        onChanged();
+      } else {
+        eventHandlersBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's event handlers serve two purposes:
+     * *   They are responsible for handling events (e.g. no match,
+     * webhook errors) in the flow.
+     * *   They are inherited by every page's [event
+     * handlers][Page.event_handlers], which can be used to handle common events
+     * regardless of the current page. Event handlers defined in the page
+     * have higher priority than those defined in the flow.
+     * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+     * evaluated on a first-match basis. The first one that matches the event
+     * get executed, with the rest being ignored.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public Builder clearEventHandlers() {
+      if (eventHandlersBuilder_ == null) {
+        eventHandlers_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000002);
+        onChanged();
+      } else {
+        eventHandlersBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's event handlers serve two purposes:
+     * *   They are responsible for handling events (e.g. no match,
+     * webhook errors) in the flow.
+     * *   They are inherited by every page's [event
+     * handlers][Page.event_handlers], which can be used to handle common events
+     * regardless of the current page. Event handlers defined in the page
+     * have higher priority than those defined in the flow.
+     * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+     * evaluated on a first-match basis. The first one that matches the event
+     * get executed, with the rest being ignored.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public Builder removeEventHandlers(int index) {
+      if (eventHandlersBuilder_ == null) {
+        ensureEventHandlersIsMutable();
+        eventHandlers_.remove(index);
+        onChanged();
+      } else {
+        eventHandlersBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's event handlers serve two purposes:
+     * *   They are responsible for handling events (e.g. no match,
+     * webhook errors) in the flow.
+     * *   They are inherited by every page's [event
+     * handlers][Page.event_handlers], which can be used to handle common events
+     * regardless of the current page. Event handlers defined in the page
+     * have higher priority than those defined in the flow.
+     * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+     * evaluated on a first-match basis. The first one that matches the event
+     * get executed, with the rest being ignored.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder getEventHandlersBuilder(
+        int index) {
+      return getEventHandlersFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's event handlers serve two purposes:
+     * *   They are responsible for handling events (e.g. no match,
+     * webhook errors) in the flow.
+     * *   They are inherited by every page's [event
+     * handlers][Page.event_handlers], which can be used to handle common events
+     * regardless of the current page. Event handlers defined in the page
+     * have higher priority than those defined in the flow.
+     * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+     * evaluated on a first-match basis. The first one that matches the event
+     * get executed, with the rest being ignored.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder getEventHandlersOrBuilder(
+        int index) {
+      if (eventHandlersBuilder_ == null) {
+        return eventHandlers_.get(index);
+      } else {
+        return eventHandlersBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's event handlers serve two purposes:
+     * *   They are responsible for handling events (e.g. no match,
+     * webhook errors) in the flow.
+     * *   They are inherited by every page's [event
+     * handlers][Page.event_handlers], which can be used to handle common events
+     * regardless of the current page. Event handlers defined in the page
+     * have higher priority than those defined in the flow.
+     * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+     * evaluated on a first-match basis. The first one that matches the event
+     * get executed, with the rest being ignored.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder>
+        getEventHandlersOrBuilderList() {
+      if (eventHandlersBuilder_ != null) {
+        return eventHandlersBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(eventHandlers_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's event handlers serve two purposes:
+     * *   They are responsible for handling events (e.g. no match,
+     * webhook errors) in the flow.
+     * *   They are inherited by every page's [event
+     * handlers][Page.event_handlers], which can be used to handle common events
+     * regardless of the current page. Event handlers defined in the page
+     * have higher priority than those defined in the flow.
+     * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+     * evaluated on a first-match basis. The first one that matches the event
+     * get executed, with the rest being ignored.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder addEventHandlersBuilder() {
+      return getEventHandlersFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.cx.v3beta1.EventHandler.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's event handlers serve two purposes:
+     * *   They are responsible for handling events (e.g. no match,
+     * webhook errors) in the flow.
+     * *   They are inherited by every page's [event
+     * handlers][Page.event_handlers], which can be used to handle common events
+     * regardless of the current page. Event handlers defined in the page
+     * have higher priority than those defined in the flow.
+     * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+     * evaluated on a first-match basis. The first one that matches the event
+     * get executed, with the rest being ignored.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder addEventHandlersBuilder(
+        int index) {
+      return getEventHandlersFieldBuilder()
+          .addBuilder(
+              index, com.google.cloud.dialogflow.cx.v3beta1.EventHandler.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's event handlers serve two purposes:
+     * *   They are responsible for handling events (e.g. no match,
+     * webhook errors) in the flow.
+     * *   They are inherited by every page's [event
+     * handlers][Page.event_handlers], which can be used to handle common events
+     * regardless of the current page. Event handlers defined in the page
+     * have higher priority than those defined in the flow.
+     * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+     * evaluated on a first-match basis. The first one that matches the event
+     * get executed, with the rest being ignored.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder>
+        getEventHandlersBuilderList() {
+      return getEventHandlersFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.EventHandler,
+            com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder>
+        getEventHandlersFieldBuilder() {
+      if (eventHandlersBuilder_ == null) {
+        eventHandlersBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.EventHandler,
+                com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder>(
+                eventHandlers_,
+                ((bitField0_ & 0x00000002) != 0),
+                getParentForChildren(),
+                isClean());
+        eventHandlers_ = null;
+      }
+      return eventHandlersBuilder_;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.NluSettings nluSettings_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.NluSettings,
+            com.google.cloud.dialogflow.cx.v3beta1.NluSettings.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.NluSettingsOrBuilder>
+        nluSettingsBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * NLU related settings of the flow.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 11;</code>
+     *
+     * @return Whether the nluSettings field is set.
+     */
+    public boolean hasNluSettings() {
+      return nluSettingsBuilder_ != null || nluSettings_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * NLU related settings of the flow.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 11;</code>
+     *
+     * @return The nluSettings.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.NluSettings getNluSettings() {
+      if (nluSettingsBuilder_ == null) {
+        return nluSettings_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.NluSettings.getDefaultInstance()
+            : nluSettings_;
+      } else {
+        return nluSettingsBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * NLU related settings of the flow.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 11;</code>
+     */
+    public Builder setNluSettings(com.google.cloud.dialogflow.cx.v3beta1.NluSettings value) {
+      if (nluSettingsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        nluSettings_ = value;
+        onChanged();
+      } else {
+        nluSettingsBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * NLU related settings of the flow.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 11;</code>
+     */
+    public Builder setNluSettings(
+        com.google.cloud.dialogflow.cx.v3beta1.NluSettings.Builder builderForValue) {
+      if (nluSettingsBuilder_ == null) {
+        nluSettings_ = builderForValue.build();
+        onChanged();
+      } else {
+        nluSettingsBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * NLU related settings of the flow.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 11;</code>
+     */
+    public Builder mergeNluSettings(com.google.cloud.dialogflow.cx.v3beta1.NluSettings value) {
+      if (nluSettingsBuilder_ == null) {
+        if (nluSettings_ != null) {
+          nluSettings_ =
+              com.google.cloud.dialogflow.cx.v3beta1.NluSettings.newBuilder(nluSettings_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          nluSettings_ = value;
+        }
+        onChanged();
+      } else {
+        nluSettingsBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * NLU related settings of the flow.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 11;</code>
+     */
+    public Builder clearNluSettings() {
+      if (nluSettingsBuilder_ == null) {
+        nluSettings_ = null;
+        onChanged();
+      } else {
+        nluSettings_ = null;
+        nluSettingsBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * NLU related settings of the flow.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 11;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.NluSettings.Builder getNluSettingsBuilder() {
+
+      onChanged();
+      return getNluSettingsFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * NLU related settings of the flow.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 11;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.NluSettingsOrBuilder getNluSettingsOrBuilder() {
+      if (nluSettingsBuilder_ != null) {
+        return nluSettingsBuilder_.getMessageOrBuilder();
+      } else {
+        return nluSettings_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.NluSettings.getDefaultInstance()
+            : nluSettings_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * NLU related settings of the flow.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 11;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.NluSettings,
+            com.google.cloud.dialogflow.cx.v3beta1.NluSettings.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.NluSettingsOrBuilder>
+        getNluSettingsFieldBuilder() {
+      if (nluSettingsBuilder_ == null) {
+        nluSettingsBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.NluSettings,
+                com.google.cloud.dialogflow.cx.v3beta1.NluSettings.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.NluSettingsOrBuilder>(
+                getNluSettings(), getParentForChildren(), isClean());
+        nluSettings_ = null;
+      }
+      return nluSettingsBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.Flow)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.Flow)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.Flow DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.Flow();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Flow getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<Flow> PARSER =
+      new com.google.protobuf.AbstractParser<Flow>() {
+        @java.lang.Override
+        public Flow parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new Flow(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<Flow> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<Flow> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Flow getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowName.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowName.java
new file mode 100644
index 000000000..12cb0199a
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowName.java
@@ -0,0 +1,242 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+/** AUTO-GENERATED DOCUMENTATION AND CLASS */
+@javax.annotation.Generated("by GAPIC protoc plugin")
+public class FlowName implements ResourceName {
+
+  private static final PathTemplate PATH_TEMPLATE =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/agents/{agent}/flows/{flow}");
+
+  private volatile Map<String, String> fieldValuesMap;
+
+  private final String project;
+  private final String location;
+  private final String agent;
+  private final String flow;
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public String getAgent() {
+    return agent;
+  }
+
+  public String getFlow() {
+    return flow;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  private FlowName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    agent = Preconditions.checkNotNull(builder.getAgent());
+    flow = Preconditions.checkNotNull(builder.getFlow());
+  }
+
+  public static FlowName of(String project, String location, String agent, String flow) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setFlow(flow)
+        .build();
+  }
+
+  public static String format(String project, String location, String agent, String flow) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setFlow(flow)
+        .build()
+        .toString();
+  }
+
+  public static FlowName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    Map<String, String> matchMap =
+        PATH_TEMPLATE.validatedMatch(
+            formattedString, "FlowName.parse: formattedString not in valid format");
+    return of(
+        matchMap.get("project"),
+        matchMap.get("location"),
+        matchMap.get("agent"),
+        matchMap.get("flow"));
+  }
+
+  public static List<FlowName> parseList(List<String> formattedStrings) {
+    List<FlowName> list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List<String> toStringList(List<FlowName> values) {
+    List<String> list = new ArrayList<String>(values.size());
+    for (FlowName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PATH_TEMPLATE.matches(formattedString);
+  }
+
+  public Map<String, String> getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder<String, String> fieldMapBuilder = ImmutableMap.builder();
+          fieldMapBuilder.put("project", project);
+          fieldMapBuilder.put("location", location);
+          fieldMapBuilder.put("agent", agent);
+          fieldMapBuilder.put("flow", flow);
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return PATH_TEMPLATE.instantiate(
+        "project", project, "location", location, "agent", agent, "flow", flow);
+  }
+
+  /** Builder for FlowName. */
+  public static class Builder {
+
+    private String project;
+    private String location;
+    private String agent;
+    private String flow;
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getAgent() {
+      return agent;
+    }
+
+    public String getFlow() {
+      return flow;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public Builder setAgent(String agent) {
+      this.agent = agent;
+      return this;
+    }
+
+    public Builder setFlow(String flow) {
+      this.flow = flow;
+      return this;
+    }
+
+    private Builder() {}
+
+    private Builder(FlowName flowName) {
+      project = flowName.project;
+      location = flowName.location;
+      agent = flowName.agent;
+      flow = flowName.flow;
+    }
+
+    public FlowName build() {
+      return new FlowName(this);
+    }
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o instanceof FlowName) {
+      FlowName that = (FlowName) o;
+      return (this.project.equals(that.project))
+          && (this.location.equals(that.location))
+          && (this.agent.equals(that.agent))
+          && (this.flow.equals(that.flow));
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= project.hashCode();
+    h *= 1000003;
+    h ^= location.hashCode();
+    h *= 1000003;
+    h ^= agent.hashCode();
+    h *= 1000003;
+    h ^= flow.hashCode();
+    return h;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowOrBuilder.java
new file mode 100644
index 000000000..1d4f81ae0
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowOrBuilder.java
@@ -0,0 +1,351 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/flow.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface FlowOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.Flow)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the flow.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the flow.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the flow.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The displayName.
+   */
+  java.lang.String getDisplayName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the flow.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for displayName.
+   */
+  com.google.protobuf.ByteString getDisplayNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The description of the flow. The maximum length is 500 characters. If
+   * exceeded, the request is rejected.
+   * </pre>
+   *
+   * <code>string description = 3;</code>
+   *
+   * @return The description.
+   */
+  java.lang.String getDescription();
+  /**
+   *
+   *
+   * <pre>
+   * The description of the flow. The maximum length is 500 characters. If
+   * exceeded, the request is rejected.
+   * </pre>
+   *
+   * <code>string description = 3;</code>
+   *
+   * @return The bytes for description.
+   */
+  com.google.protobuf.ByteString getDescriptionBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * A flow's transition routes serve two purposes:
+   * *   They are responsible for matching the user's first utterances in the
+   * flow.
+   * *   They are inherited by every page's [transition
+   * routes][Page.transition_routes] and can support use cases such as the user
+   * saying "help" or "can I talk to a human?", which can be handled in a common
+   * way regardless of the current page. Transition routes defined in the page
+   * have higher priority than those defined in the flow.
+   * TransitionRoutes are evalauted in the following order:
+   * *   TransitionRoutes with intent specified..
+   * *   TransitionRoutes with only condition specified.
+   * TransitionRoutes with intent specified are inherited by pages in the flow.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+   * </code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute> getTransitionRoutesList();
+  /**
+   *
+   *
+   * <pre>
+   * A flow's transition routes serve two purposes:
+   * *   They are responsible for matching the user's first utterances in the
+   * flow.
+   * *   They are inherited by every page's [transition
+   * routes][Page.transition_routes] and can support use cases such as the user
+   * saying "help" or "can I talk to a human?", which can be handled in a common
+   * way regardless of the current page. Transition routes defined in the page
+   * have higher priority than those defined in the flow.
+   * TransitionRoutes are evalauted in the following order:
+   * *   TransitionRoutes with intent specified..
+   * *   TransitionRoutes with only condition specified.
+   * TransitionRoutes with intent specified are inherited by pages in the flow.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute getTransitionRoutes(int index);
+  /**
+   *
+   *
+   * <pre>
+   * A flow's transition routes serve two purposes:
+   * *   They are responsible for matching the user's first utterances in the
+   * flow.
+   * *   They are inherited by every page's [transition
+   * routes][Page.transition_routes] and can support use cases such as the user
+   * saying "help" or "can I talk to a human?", which can be handled in a common
+   * way regardless of the current page. Transition routes defined in the page
+   * have higher priority than those defined in the flow.
+   * TransitionRoutes are evalauted in the following order:
+   * *   TransitionRoutes with intent specified..
+   * *   TransitionRoutes with only condition specified.
+   * TransitionRoutes with intent specified are inherited by pages in the flow.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+   * </code>
+   */
+  int getTransitionRoutesCount();
+  /**
+   *
+   *
+   * <pre>
+   * A flow's transition routes serve two purposes:
+   * *   They are responsible for matching the user's first utterances in the
+   * flow.
+   * *   They are inherited by every page's [transition
+   * routes][Page.transition_routes] and can support use cases such as the user
+   * saying "help" or "can I talk to a human?", which can be handled in a common
+   * way regardless of the current page. Transition routes defined in the page
+   * have higher priority than those defined in the flow.
+   * TransitionRoutes are evalauted in the following order:
+   * *   TransitionRoutes with intent specified..
+   * *   TransitionRoutes with only condition specified.
+   * TransitionRoutes with intent specified are inherited by pages in the flow.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+   * </code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder>
+      getTransitionRoutesOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * A flow's transition routes serve two purposes:
+   * *   They are responsible for matching the user's first utterances in the
+   * flow.
+   * *   They are inherited by every page's [transition
+   * routes][Page.transition_routes] and can support use cases such as the user
+   * saying "help" or "can I talk to a human?", which can be handled in a common
+   * way regardless of the current page. Transition routes defined in the page
+   * have higher priority than those defined in the flow.
+   * TransitionRoutes are evalauted in the following order:
+   * *   TransitionRoutes with intent specified..
+   * *   TransitionRoutes with only condition specified.
+   * TransitionRoutes with intent specified are inherited by pages in the flow.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 4;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder getTransitionRoutesOrBuilder(
+      int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * A flow's event handlers serve two purposes:
+   * *   They are responsible for handling events (e.g. no match,
+   * webhook errors) in the flow.
+   * *   They are inherited by every page's [event
+   * handlers][Page.event_handlers], which can be used to handle common events
+   * regardless of the current page. Event handlers defined in the page
+   * have higher priority than those defined in the flow.
+   * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+   * evaluated on a first-match basis. The first one that matches the event
+   * get executed, with the rest being ignored.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EventHandler> getEventHandlersList();
+  /**
+   *
+   *
+   * <pre>
+   * A flow's event handlers serve two purposes:
+   * *   They are responsible for handling events (e.g. no match,
+   * webhook errors) in the flow.
+   * *   They are inherited by every page's [event
+   * handlers][Page.event_handlers], which can be used to handle common events
+   * regardless of the current page. Event handlers defined in the page
+   * have higher priority than those defined in the flow.
+   * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+   * evaluated on a first-match basis. The first one that matches the event
+   * get executed, with the rest being ignored.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.EventHandler getEventHandlers(int index);
+  /**
+   *
+   *
+   * <pre>
+   * A flow's event handlers serve two purposes:
+   * *   They are responsible for handling events (e.g. no match,
+   * webhook errors) in the flow.
+   * *   They are inherited by every page's [event
+   * handlers][Page.event_handlers], which can be used to handle common events
+   * regardless of the current page. Event handlers defined in the page
+   * have higher priority than those defined in the flow.
+   * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+   * evaluated on a first-match basis. The first one that matches the event
+   * get executed, with the rest being ignored.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+   */
+  int getEventHandlersCount();
+  /**
+   *
+   *
+   * <pre>
+   * A flow's event handlers serve two purposes:
+   * *   They are responsible for handling events (e.g. no match,
+   * webhook errors) in the flow.
+   * *   They are inherited by every page's [event
+   * handlers][Page.event_handlers], which can be used to handle common events
+   * regardless of the current page. Event handlers defined in the page
+   * have higher priority than those defined in the flow.
+   * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+   * evaluated on a first-match basis. The first one that matches the event
+   * get executed, with the rest being ignored.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder>
+      getEventHandlersOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * A flow's event handlers serve two purposes:
+   * *   They are responsible for handling events (e.g. no match,
+   * webhook errors) in the flow.
+   * *   They are inherited by every page's [event
+   * handlers][Page.event_handlers], which can be used to handle common events
+   * regardless of the current page. Event handlers defined in the page
+   * have higher priority than those defined in the flow.
+   * Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+   * evaluated on a first-match basis. The first one that matches the event
+   * get executed, with the rest being ignored.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder getEventHandlersOrBuilder(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * NLU related settings of the flow.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 11;</code>
+   *
+   * @return Whether the nluSettings field is set.
+   */
+  boolean hasNluSettings();
+  /**
+   *
+   *
+   * <pre>
+   * NLU related settings of the flow.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 11;</code>
+   *
+   * @return The nluSettings.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.NluSettings getNluSettings();
+  /**
+   *
+   *
+   * <pre>
+   * NLU related settings of the flow.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 11;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.NluSettingsOrBuilder getNluSettingsOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowProto.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowProto.java
new file mode 100644
index 000000000..658336130
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowProto.java
@@ -0,0 +1,278 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/flow.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public final class FlowProto {
+  private FlowProto() {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistryLite registry) {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions((com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_NluSettings_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_NluSettings_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Flow_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Flow_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_CreateFlowRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_CreateFlowRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteFlowRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteFlowRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListFlowsRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListFlowsRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListFlowsResponse_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListFlowsResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_GetFlowRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_GetFlowRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateFlowRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateFlowRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_TrainFlowRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_TrainFlowRequest_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
+    return descriptor;
+  }
+
+  private static com.google.protobuf.Descriptors.FileDescriptor descriptor;
+
+  static {
+    java.lang.String[] descriptorData = {
+      "\n-google/cloud/dialogflow/cx/v3beta1/flo"
+          + "w.proto\022\"google.cloud.dialogflow.cx.v3be"
+          + "ta1\032\034google/api/annotations.proto\032\027googl"
+          + "e/api/client.proto\032\037google/api/field_beh"
+          + "avior.proto\032\031google/api/resource.proto\032-"
+          + "google/cloud/dialogflow/cx/v3beta1/page."
+          + "proto\032#google/longrunning/operations.pro"
+          + "to\032\033google/protobuf/empty.proto\032 google/"
+          + "protobuf/field_mask.proto\"\362\003\n\013NluSetting"
+          + "s\022M\n\nmodel_type\030\001 \001(\01629.google.cloud.dia"
+          + "logflow.cx.v3beta1.NluSettings.ModelType"
+          + "\022 \n\030classification_threshold\030\003 \001(\002\022^\n\023mo"
+          + "del_training_mode\030\004 \001(\0162A.google.cloud.d"
+          + "ialogflow.cx.v3beta1.NluSettings.ModelTr"
+          + "ainingMode\022#\n\027enable_spell_correction\030\005 "
+          + "\001(\010B\002\030\001\"p\n\tModelType\022\032\n\026MODEL_TYPE_UNSPE"
+          + "CIFIED\020\000\022\027\n\023MODEL_TYPE_STANDARD\020\001\022\025\n\021MOD"
+          + "EL_TYPE_CUSTOM\020\002\022\027\n\023MODEL_TYPE_ADVANCED\020"
+          + "\003\"{\n\021ModelTrainingMode\022#\n\037MODEL_TRAINING"
+          + "_MODE_UNSPECIFIED\020\000\022!\n\035MODEL_TRAINING_MO"
+          + "DE_AUTOMATIC\020\001\022\036\n\032MODEL_TRAINING_MODE_MA"
+          + "NUAL\020\002\"\217\003\n\004Flow\022\014\n\004name\030\001 \001(\t\022\031\n\014display"
+          + "_name\030\002 \001(\tB\003\340A\002\022\023\n\013description\030\003 \001(\t\022N\n"
+          + "\021transition_routes\030\004 \003(\01323.google.cloud."
+          + "dialogflow.cx.v3beta1.TransitionRoute\022H\n"
+          + "\016event_handlers\030\n \003(\01320.google.cloud.dia"
+          + "logflow.cx.v3beta1.EventHandler\022E\n\014nlu_s"
+          + "ettings\030\013 \001(\0132/.google.cloud.dialogflow."
+          + "cx.v3beta1.NluSettings:h\352Ae\n\036dialogflow."
+          + "googleapis.com/Flow\022Cprojects/{project}/"
+          + "locations/{location}/agents/{agent}/flow"
+          + "s/{flow}\"\237\001\n\021CreateFlowRequest\0226\n\006parent"
+          + "\030\001 \001(\tB&\340A\002\372A \022\036dialogflow.googleapis.co"
+          + "m/Flow\022;\n\004flow\030\002 \001(\0132(.google.cloud.dial"
+          + "ogflow.cx.v3beta1.FlowB\003\340A\002\022\025\n\rlanguage_"
+          + "code\030\003 \001(\t\"X\n\021DeleteFlowRequest\0224\n\004name\030"
+          + "\001 \001(\tB&\340A\002\372A \n\036dialogflow.googleapis.com"
+          + "/Flow\022\r\n\005force\030\002 \001(\010\"\210\001\n\020ListFlowsReques"
+          + "t\0226\n\006parent\030\001 \001(\tB&\340A\002\372A \022\036dialogflow.go"
+          + "ogleapis.com/Flow\022\021\n\tpage_size\030\002 \001(\005\022\022\n\n"
+          + "page_token\030\003 \001(\t\022\025\n\rlanguage_code\030\004 \001(\t\""
+          + "e\n\021ListFlowsResponse\0227\n\005flows\030\001 \003(\0132(.go"
+          + "ogle.cloud.dialogflow.cx.v3beta1.Flow\022\027\n"
+          + "\017next_page_token\030\002 \001(\t\"]\n\016GetFlowRequest"
+          + "\0224\n\004name\030\001 \001(\tB&\340A\002\372A \n\036dialogflow.googl"
+          + "eapis.com/Flow\022\025\n\rlanguage_code\030\002 \001(\t\"\235\001"
+          + "\n\021UpdateFlowRequest\022;\n\004flow\030\001 \001(\0132(.goog"
+          + "le.cloud.dialogflow.cx.v3beta1.FlowB\003\340A\002"
+          + "\0224\n\013update_mask\030\002 \001(\0132\032.google.protobuf."
+          + "FieldMaskB\003\340A\002\022\025\n\rlanguage_code\030\003 \001(\t\"H\n"
+          + "\020TrainFlowRequest\0224\n\004name\030\001 \001(\tB&\340A\002\372A \n"
+          + "\036dialogflow.googleapis.com/Flow2\231\n\n\005Flow"
+          + "s\022\302\001\n\nCreateFlow\0225.google.cloud.dialogfl"
+          + "ow.cx.v3beta1.CreateFlowRequest\032(.google"
+          + ".cloud.dialogflow.cx.v3beta1.Flow\"S\202\323\344\223\002"
+          + "?\"7/v3beta1/{parent=projects/*/locations"
+          + "/*/agents/*}/flows:\004flow\332A\013parent,flow\022\243"
+          + "\001\n\nDeleteFlow\0225.google.cloud.dialogflow."
+          + "cx.v3beta1.DeleteFlowRequest\032\026.google.pr"
+          + "otobuf.Empty\"F\202\323\344\223\0029*7/v3beta1/{name=pro"
+          + "jects/*/locations/*/agents/*/flows/*}\332A\004"
+          + "name\022\302\001\n\tListFlows\0224.google.cloud.dialog"
+          + "flow.cx.v3beta1.ListFlowsRequest\0325.googl"
+          + "e.cloud.dialogflow.cx.v3beta1.ListFlowsR"
+          + "esponse\"H\202\323\344\223\0029\0227/v3beta1/{parent=projec"
+          + "ts/*/locations/*/agents/*}/flows\332A\006paren"
+          + "t\022\257\001\n\007GetFlow\0222.google.cloud.dialogflow."
+          + "cx.v3beta1.GetFlowRequest\032(.google.cloud"
+          + ".dialogflow.cx.v3beta1.Flow\"F\202\323\344\223\0029\0227/v3"
+          + "beta1/{name=projects/*/locations/*/agent"
+          + "s/*/flows/*}\332A\004name\022\314\001\n\nUpdateFlow\0225.goo"
+          + "gle.cloud.dialogflow.cx.v3beta1.UpdateFl"
+          + "owRequest\032(.google.cloud.dialogflow.cx.v"
+          + "3beta1.Flow\"]\202\323\344\223\002D2</v3beta1/{flow.name"
+          + "=projects/*/locations/*/agents/*/flows/*"
+          + "}:\004flow\332A\020flow,update_mask\022\344\001\n\tTrainFlow"
+          + "\0224.google.cloud.dialogflow.cx.v3beta1.Tr"
+          + "ainFlowRequest\032\035.google.longrunning.Oper"
+          + "ation\"\201\001\202\323\344\223\002B\"=/v3beta1/{name=projects/"
+          + "*/locations/*/agents/*/flows/*}:train:\001*"
+          + "\332A\004name\312A/\n\025google.protobuf.Empty\022\026googl"
+          + "e.protobuf.Struct\032x\312A\031dialogflow.googlea"
+          + "pis.com\322AYhttps://www.googleapis.com/aut"
+          + "h/cloud-platform,https://www.googleapis."
+          + "com/auth/dialogflowB\250\001\n&com.google.cloud"
+          + ".dialogflow.cx.v3beta1B\tFlowProtoP\001ZDgoo"
+          + "gle.golang.org/genproto/googleapis/cloud"
+          + "/dialogflow/cx/v3beta1;cx\370\001\001\242\002\002DF\252\002\"Goog"
+          + "le.Cloud.Dialogflow.Cx.V3Beta1b\006proto3"
+    };
+    descriptor =
+        com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
+            descriptorData,
+            new com.google.protobuf.Descriptors.FileDescriptor[] {
+              com.google.api.AnnotationsProto.getDescriptor(),
+              com.google.api.ClientProto.getDescriptor(),
+              com.google.api.FieldBehaviorProto.getDescriptor(),
+              com.google.api.ResourceProto.getDescriptor(),
+              com.google.cloud.dialogflow.cx.v3beta1.PageProto.getDescriptor(),
+              com.google.longrunning.OperationsProto.getDescriptor(),
+              com.google.protobuf.EmptyProto.getDescriptor(),
+              com.google.protobuf.FieldMaskProto.getDescriptor(),
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_NluSettings_descriptor =
+        getDescriptor().getMessageTypes().get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_NluSettings_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_NluSettings_descriptor,
+            new java.lang.String[] {
+              "ModelType", "ClassificationThreshold", "ModelTrainingMode", "EnableSpellCorrection",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Flow_descriptor =
+        getDescriptor().getMessageTypes().get(1);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Flow_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_Flow_descriptor,
+            new java.lang.String[] {
+              "Name",
+              "DisplayName",
+              "Description",
+              "TransitionRoutes",
+              "EventHandlers",
+              "NluSettings",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_CreateFlowRequest_descriptor =
+        getDescriptor().getMessageTypes().get(2);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_CreateFlowRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_CreateFlowRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "Flow", "LanguageCode",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteFlowRequest_descriptor =
+        getDescriptor().getMessageTypes().get(3);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteFlowRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteFlowRequest_descriptor,
+            new java.lang.String[] {
+              "Name", "Force",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListFlowsRequest_descriptor =
+        getDescriptor().getMessageTypes().get(4);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListFlowsRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ListFlowsRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "PageSize", "PageToken", "LanguageCode",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListFlowsResponse_descriptor =
+        getDescriptor().getMessageTypes().get(5);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListFlowsResponse_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ListFlowsResponse_descriptor,
+            new java.lang.String[] {
+              "Flows", "NextPageToken",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_GetFlowRequest_descriptor =
+        getDescriptor().getMessageTypes().get(6);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_GetFlowRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_GetFlowRequest_descriptor,
+            new java.lang.String[] {
+              "Name", "LanguageCode",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateFlowRequest_descriptor =
+        getDescriptor().getMessageTypes().get(7);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateFlowRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateFlowRequest_descriptor,
+            new java.lang.String[] {
+              "Flow", "UpdateMask", "LanguageCode",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_TrainFlowRequest_descriptor =
+        getDescriptor().getMessageTypes().get(8);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_TrainFlowRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_TrainFlowRequest_descriptor,
+            new java.lang.String[] {
+              "Name",
+            });
+    com.google.protobuf.ExtensionRegistry registry =
+        com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.ClientProto.defaultHost);
+    registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
+    registry.add(com.google.api.AnnotationsProto.http);
+    registry.add(com.google.api.ClientProto.methodSignature);
+    registry.add(com.google.api.ClientProto.oauthScopes);
+    registry.add(com.google.api.ResourceProto.resource);
+    registry.add(com.google.api.ResourceProto.resourceReference);
+    registry.add(com.google.longrunning.OperationsProto.operationInfo);
+    com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
+        descriptor, registry);
+    com.google.api.AnnotationsProto.getDescriptor();
+    com.google.api.ClientProto.getDescriptor();
+    com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.api.ResourceProto.getDescriptor();
+    com.google.cloud.dialogflow.cx.v3beta1.PageProto.getDescriptor();
+    com.google.longrunning.OperationsProto.getDescriptor();
+    com.google.protobuf.EmptyProto.getDescriptor();
+    com.google.protobuf.FieldMaskProto.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Form.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Form.java
new file mode 100644
index 000000000..bf447ccb2
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Form.java
@@ -0,0 +1,4985 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/page.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * A form is a data model that groups related parameters that can be collected
+ * from the user. The process in which the agent prompts the user and collects
+ * parameter values from the user is called form filling. A form can be added to
+ * a [page][google.cloud.dialogflow.cx.v3beta1.Page]. When form filling is done, the filled parameters will be
+ * written to the [session][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Form}
+ */
+public final class Form extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.Form)
+    FormOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use Form.newBuilder() to construct.
+  private Form(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private Form() {
+    parameters_ = java.util.Collections.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new Form();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private Form(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                parameters_ =
+                    new java.util.ArrayList<
+                        com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              parameters_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.parser(),
+                      extensionRegistry));
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        parameters_ = java.util.Collections.unmodifiableList(parameters_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_Form_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_Form_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.Form.class,
+            com.google.cloud.dialogflow.cx.v3beta1.Form.Builder.class);
+  }
+
+  public interface ParameterOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.Form.Parameter)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the parameter, unique within the
+     * form.
+     * </pre>
+     *
+     * <code>string display_name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The displayName.
+     */
+    java.lang.String getDisplayName();
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the parameter, unique within the
+     * form.
+     * </pre>
+     *
+     * <code>string display_name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for displayName.
+     */
+    com.google.protobuf.ByteString getDisplayNameBytes();
+
+    /**
+     *
+     *
+     * <pre>
+     * Indicates whether the parameter is required. Optional parameters will not
+     * trigger prompts; however, they are filled if the user specifies them.
+     * Required parameters must be filled before form filling concludes.
+     * </pre>
+     *
+     * <code>bool required = 2;</code>
+     *
+     * @return The required.
+     */
+    boolean getRequired();
+
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type of the parameter.
+     * Format: `projects/-/locations/-/agents/-/entityTypes/&lt;System Entity Type
+     * ID&gt;` for system entity types (for example,
+     * `projects/-/locations/-/agents/-/entityTypes/sys.date`), or
+     * `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;` for developer entity types.
+     * </pre>
+     *
+     * <code>
+     * string entity_type = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The entityType.
+     */
+    java.lang.String getEntityType();
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type of the parameter.
+     * Format: `projects/-/locations/-/agents/-/entityTypes/&lt;System Entity Type
+     * ID&gt;` for system entity types (for example,
+     * `projects/-/locations/-/agents/-/entityTypes/sys.date`), or
+     * `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;` for developer entity types.
+     * </pre>
+     *
+     * <code>
+     * string entity_type = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for entityType.
+     */
+    com.google.protobuf.ByteString getEntityTypeBytes();
+
+    /**
+     *
+     *
+     * <pre>
+     * Indicates whether the parameter represents a list of values.
+     * </pre>
+     *
+     * <code>bool is_list = 4;</code>
+     *
+     * @return The isList.
+     */
+    boolean getIsList();
+
+    /**
+     *
+     *
+     * <pre>
+     * Required. Defines fill behavior for the parameter.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior fill_behavior = 7 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the fillBehavior field is set.
+     */
+    boolean hasFillBehavior();
+    /**
+     *
+     *
+     * <pre>
+     * Required. Defines fill behavior for the parameter.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior fill_behavior = 7 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The fillBehavior.
+     */
+    com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior getFillBehavior();
+    /**
+     *
+     *
+     * <pre>
+     * Required. Defines fill behavior for the parameter.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior fill_behavior = 7 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehaviorOrBuilder
+        getFillBehaviorOrBuilder();
+
+    /**
+     *
+     *
+     * <pre>
+     * The default value of an optional parameter. If the parameter is required,
+     * the default value will be ignored.
+     * </pre>
+     *
+     * <code>.google.protobuf.Value default_value = 9;</code>
+     *
+     * @return Whether the defaultValue field is set.
+     */
+    boolean hasDefaultValue();
+    /**
+     *
+     *
+     * <pre>
+     * The default value of an optional parameter. If the parameter is required,
+     * the default value will be ignored.
+     * </pre>
+     *
+     * <code>.google.protobuf.Value default_value = 9;</code>
+     *
+     * @return The defaultValue.
+     */
+    com.google.protobuf.Value getDefaultValue();
+    /**
+     *
+     *
+     * <pre>
+     * The default value of an optional parameter. If the parameter is required,
+     * the default value will be ignored.
+     * </pre>
+     *
+     * <code>.google.protobuf.Value default_value = 9;</code>
+     */
+    com.google.protobuf.ValueOrBuilder getDefaultValueOrBuilder();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents a form parameter.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Form.Parameter}
+   */
+  public static final class Parameter extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.Form.Parameter)
+      ParameterOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use Parameter.newBuilder() to construct.
+    private Parameter(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+
+    private Parameter() {
+      displayName_ = "";
+      entityType_ = "";
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new Parameter();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private Parameter(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+
+                displayName_ = s;
+                break;
+              }
+            case 16:
+              {
+                required_ = input.readBool();
+                break;
+              }
+            case 26:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+
+                entityType_ = s;
+                break;
+              }
+            case 32:
+              {
+                isList_ = input.readBool();
+                break;
+              }
+            case 58:
+              {
+                com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior.Builder
+                    subBuilder = null;
+                if (fillBehavior_ != null) {
+                  subBuilder = fillBehavior_.toBuilder();
+                }
+                fillBehavior_ =
+                    input.readMessage(
+                        com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior.parser(),
+                        extensionRegistry);
+                if (subBuilder != null) {
+                  subBuilder.mergeFrom(fillBehavior_);
+                  fillBehavior_ = subBuilder.buildPartial();
+                }
+
+                break;
+              }
+            case 74:
+              {
+                com.google.protobuf.Value.Builder subBuilder = null;
+                if (defaultValue_ != null) {
+                  subBuilder = defaultValue_.toBuilder();
+                }
+                defaultValue_ =
+                    input.readMessage(com.google.protobuf.Value.parser(), extensionRegistry);
+                if (subBuilder != null) {
+                  subBuilder.mergeFrom(defaultValue_);
+                  defaultValue_ = subBuilder.buildPartial();
+                }
+
+                break;
+              }
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Form_Parameter_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Form_Parameter_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.class,
+              com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.Builder.class);
+    }
+
+    public interface FillBehaviorOrBuilder
+        extends
+        // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior)
+        com.google.protobuf.MessageOrBuilder {
+
+      /**
+       *
+       *
+       * <pre>
+       * Required. The fulfillment to provide the initial prompt that the agent
+       * can present to the user in order to fill the parameter.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.Fulfillment initial_prompt_fulfillment = 3 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       *
+       * @return Whether the initialPromptFulfillment field is set.
+       */
+      boolean hasInitialPromptFulfillment();
+      /**
+       *
+       *
+       * <pre>
+       * Required. The fulfillment to provide the initial prompt that the agent
+       * can present to the user in order to fill the parameter.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.Fulfillment initial_prompt_fulfillment = 3 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       *
+       * @return The initialPromptFulfillment.
+       */
+      com.google.cloud.dialogflow.cx.v3beta1.Fulfillment getInitialPromptFulfillment();
+      /**
+       *
+       *
+       * <pre>
+       * Required. The fulfillment to provide the initial prompt that the agent
+       * can present to the user in order to fill the parameter.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.Fulfillment initial_prompt_fulfillment = 3 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder
+          getInitialPromptFulfillmentOrBuilder();
+
+      /**
+       *
+       *
+       * <pre>
+       * The handlers for parameter-level events, used to provide reprompt for
+       * the parameter or transition to a different page/flow. The supported
+       * events are:
+       * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+       * *   `sys.no-match-default`
+       * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+       * *   `sys.no-input-default`
+       * *   `sys.invalid-parameter`
+       * `initial_prompt_fulfillment` provides the first prompt for the
+       * parameter.
+       * If the user's response does not fill the parameter, a
+       * no-match/no-input event will be triggered, and the fulfillment
+       * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+       * defined) will be called to provide a prompt. The
+       * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+       * the next no-match/no-input event, and so on.
+       * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+       * to handle all following no-match/no-input events after all numbered
+       * no-match/no-input handlers for the parameter are consumed.
+       * A `sys.invalid-parameter` handler can be defined to handle the case
+       * where the parameter values have been `invalidated` by webhook. For
+       * example, if the user's response fill the parameter, however the
+       * parameter was invalidated by webhook, the fulfillment associated with
+       * the `sys.invalid-parameter` handler (if defined) will be called to
+       * provide a prompt.
+       * If the event handler for the corresponding event can't be found on the
+       * parameter, `initial_prompt_fulfillment` will be re-prompted.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+       * </code>
+       */
+      java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EventHandler>
+          getRepromptEventHandlersList();
+      /**
+       *
+       *
+       * <pre>
+       * The handlers for parameter-level events, used to provide reprompt for
+       * the parameter or transition to a different page/flow. The supported
+       * events are:
+       * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+       * *   `sys.no-match-default`
+       * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+       * *   `sys.no-input-default`
+       * *   `sys.invalid-parameter`
+       * `initial_prompt_fulfillment` provides the first prompt for the
+       * parameter.
+       * If the user's response does not fill the parameter, a
+       * no-match/no-input event will be triggered, and the fulfillment
+       * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+       * defined) will be called to provide a prompt. The
+       * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+       * the next no-match/no-input event, and so on.
+       * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+       * to handle all following no-match/no-input events after all numbered
+       * no-match/no-input handlers for the parameter are consumed.
+       * A `sys.invalid-parameter` handler can be defined to handle the case
+       * where the parameter values have been `invalidated` by webhook. For
+       * example, if the user's response fill the parameter, however the
+       * parameter was invalidated by webhook, the fulfillment associated with
+       * the `sys.invalid-parameter` handler (if defined) will be called to
+       * provide a prompt.
+       * If the event handler for the corresponding event can't be found on the
+       * parameter, `initial_prompt_fulfillment` will be re-prompted.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+       * </code>
+       */
+      com.google.cloud.dialogflow.cx.v3beta1.EventHandler getRepromptEventHandlers(int index);
+      /**
+       *
+       *
+       * <pre>
+       * The handlers for parameter-level events, used to provide reprompt for
+       * the parameter or transition to a different page/flow. The supported
+       * events are:
+       * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+       * *   `sys.no-match-default`
+       * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+       * *   `sys.no-input-default`
+       * *   `sys.invalid-parameter`
+       * `initial_prompt_fulfillment` provides the first prompt for the
+       * parameter.
+       * If the user's response does not fill the parameter, a
+       * no-match/no-input event will be triggered, and the fulfillment
+       * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+       * defined) will be called to provide a prompt. The
+       * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+       * the next no-match/no-input event, and so on.
+       * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+       * to handle all following no-match/no-input events after all numbered
+       * no-match/no-input handlers for the parameter are consumed.
+       * A `sys.invalid-parameter` handler can be defined to handle the case
+       * where the parameter values have been `invalidated` by webhook. For
+       * example, if the user's response fill the parameter, however the
+       * parameter was invalidated by webhook, the fulfillment associated with
+       * the `sys.invalid-parameter` handler (if defined) will be called to
+       * provide a prompt.
+       * If the event handler for the corresponding event can't be found on the
+       * parameter, `initial_prompt_fulfillment` will be re-prompted.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+       * </code>
+       */
+      int getRepromptEventHandlersCount();
+      /**
+       *
+       *
+       * <pre>
+       * The handlers for parameter-level events, used to provide reprompt for
+       * the parameter or transition to a different page/flow. The supported
+       * events are:
+       * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+       * *   `sys.no-match-default`
+       * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+       * *   `sys.no-input-default`
+       * *   `sys.invalid-parameter`
+       * `initial_prompt_fulfillment` provides the first prompt for the
+       * parameter.
+       * If the user's response does not fill the parameter, a
+       * no-match/no-input event will be triggered, and the fulfillment
+       * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+       * defined) will be called to provide a prompt. The
+       * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+       * the next no-match/no-input event, and so on.
+       * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+       * to handle all following no-match/no-input events after all numbered
+       * no-match/no-input handlers for the parameter are consumed.
+       * A `sys.invalid-parameter` handler can be defined to handle the case
+       * where the parameter values have been `invalidated` by webhook. For
+       * example, if the user's response fill the parameter, however the
+       * parameter was invalidated by webhook, the fulfillment associated with
+       * the `sys.invalid-parameter` handler (if defined) will be called to
+       * provide a prompt.
+       * If the event handler for the corresponding event can't be found on the
+       * parameter, `initial_prompt_fulfillment` will be re-prompted.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+       * </code>
+       */
+      java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder>
+          getRepromptEventHandlersOrBuilderList();
+      /**
+       *
+       *
+       * <pre>
+       * The handlers for parameter-level events, used to provide reprompt for
+       * the parameter or transition to a different page/flow. The supported
+       * events are:
+       * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+       * *   `sys.no-match-default`
+       * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+       * *   `sys.no-input-default`
+       * *   `sys.invalid-parameter`
+       * `initial_prompt_fulfillment` provides the first prompt for the
+       * parameter.
+       * If the user's response does not fill the parameter, a
+       * no-match/no-input event will be triggered, and the fulfillment
+       * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+       * defined) will be called to provide a prompt. The
+       * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+       * the next no-match/no-input event, and so on.
+       * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+       * to handle all following no-match/no-input events after all numbered
+       * no-match/no-input handlers for the parameter are consumed.
+       * A `sys.invalid-parameter` handler can be defined to handle the case
+       * where the parameter values have been `invalidated` by webhook. For
+       * example, if the user's response fill the parameter, however the
+       * parameter was invalidated by webhook, the fulfillment associated with
+       * the `sys.invalid-parameter` handler (if defined) will be called to
+       * provide a prompt.
+       * If the event handler for the corresponding event can't be found on the
+       * parameter, `initial_prompt_fulfillment` will be re-prompted.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+       * </code>
+       */
+      com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder
+          getRepromptEventHandlersOrBuilder(int index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration for how the filling of a parameter should be handled.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior}
+     */
+    public static final class FillBehavior extends com.google.protobuf.GeneratedMessageV3
+        implements
+        // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior)
+        FillBehaviorOrBuilder {
+      private static final long serialVersionUID = 0L;
+      // Use FillBehavior.newBuilder() to construct.
+      private FillBehavior(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+        super(builder);
+      }
+
+      private FillBehavior() {
+        repromptEventHandlers_ = java.util.Collections.emptyList();
+      }
+
+      @java.lang.Override
+      @SuppressWarnings({"unused"})
+      protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+        return new FillBehavior();
+      }
+
+      @java.lang.Override
+      public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+        return this.unknownFields;
+      }
+
+      private FillBehavior(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        this();
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
+        int mutable_bitField0_ = 0;
+        com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+            com.google.protobuf.UnknownFieldSet.newBuilder();
+        try {
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 26:
+                {
+                  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder subBuilder = null;
+                  if (initialPromptFulfillment_ != null) {
+                    subBuilder = initialPromptFulfillment_.toBuilder();
+                  }
+                  initialPromptFulfillment_ =
+                      input.readMessage(
+                          com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.parser(),
+                          extensionRegistry);
+                  if (subBuilder != null) {
+                    subBuilder.mergeFrom(initialPromptFulfillment_);
+                    initialPromptFulfillment_ = subBuilder.buildPartial();
+                  }
+
+                  break;
+                }
+              case 42:
+                {
+                  if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                    repromptEventHandlers_ =
+                        new java.util.ArrayList<
+                            com.google.cloud.dialogflow.cx.v3beta1.EventHandler>();
+                    mutable_bitField0_ |= 0x00000001;
+                  }
+                  repromptEventHandlers_.add(
+                      input.readMessage(
+                          com.google.cloud.dialogflow.cx.v3beta1.EventHandler.parser(),
+                          extensionRegistry));
+                  break;
+                }
+              default:
+                {
+                  if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                    done = true;
+                  }
+                  break;
+                }
+            }
+          }
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(this);
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(this);
+        } finally {
+          if (((mutable_bitField0_ & 0x00000001) != 0)) {
+            repromptEventHandlers_ = java.util.Collections.unmodifiableList(repromptEventHandlers_);
+          }
+          this.unknownFields = unknownFields.build();
+          makeExtensionsImmutable();
+        }
+      }
+
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Form_Parameter_FillBehavior_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Form_Parameter_FillBehavior_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior.class,
+                com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior.Builder.class);
+      }
+
+      public static final int INITIAL_PROMPT_FULFILLMENT_FIELD_NUMBER = 3;
+      private com.google.cloud.dialogflow.cx.v3beta1.Fulfillment initialPromptFulfillment_;
+      /**
+       *
+       *
+       * <pre>
+       * Required. The fulfillment to provide the initial prompt that the agent
+       * can present to the user in order to fill the parameter.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.Fulfillment initial_prompt_fulfillment = 3 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       *
+       * @return Whether the initialPromptFulfillment field is set.
+       */
+      @java.lang.Override
+      public boolean hasInitialPromptFulfillment() {
+        return initialPromptFulfillment_ != null;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The fulfillment to provide the initial prompt that the agent
+       * can present to the user in order to fill the parameter.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.Fulfillment initial_prompt_fulfillment = 3 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       *
+       * @return The initialPromptFulfillment.
+       */
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment getInitialPromptFulfillment() {
+        return initialPromptFulfillment_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.getDefaultInstance()
+            : initialPromptFulfillment_;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The fulfillment to provide the initial prompt that the agent
+       * can present to the user in order to fill the parameter.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.Fulfillment initial_prompt_fulfillment = 3 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder
+          getInitialPromptFulfillmentOrBuilder() {
+        return getInitialPromptFulfillment();
+      }
+
+      public static final int REPROMPT_EVENT_HANDLERS_FIELD_NUMBER = 5;
+      private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EventHandler>
+          repromptEventHandlers_;
+      /**
+       *
+       *
+       * <pre>
+       * The handlers for parameter-level events, used to provide reprompt for
+       * the parameter or transition to a different page/flow. The supported
+       * events are:
+       * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+       * *   `sys.no-match-default`
+       * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+       * *   `sys.no-input-default`
+       * *   `sys.invalid-parameter`
+       * `initial_prompt_fulfillment` provides the first prompt for the
+       * parameter.
+       * If the user's response does not fill the parameter, a
+       * no-match/no-input event will be triggered, and the fulfillment
+       * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+       * defined) will be called to provide a prompt. The
+       * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+       * the next no-match/no-input event, and so on.
+       * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+       * to handle all following no-match/no-input events after all numbered
+       * no-match/no-input handlers for the parameter are consumed.
+       * A `sys.invalid-parameter` handler can be defined to handle the case
+       * where the parameter values have been `invalidated` by webhook. For
+       * example, if the user's response fill the parameter, however the
+       * parameter was invalidated by webhook, the fulfillment associated with
+       * the `sys.invalid-parameter` handler (if defined) will be called to
+       * provide a prompt.
+       * If the event handler for the corresponding event can't be found on the
+       * parameter, `initial_prompt_fulfillment` will be re-prompted.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+       * </code>
+       */
+      @java.lang.Override
+      public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EventHandler>
+          getRepromptEventHandlersList() {
+        return repromptEventHandlers_;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The handlers for parameter-level events, used to provide reprompt for
+       * the parameter or transition to a different page/flow. The supported
+       * events are:
+       * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+       * *   `sys.no-match-default`
+       * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+       * *   `sys.no-input-default`
+       * *   `sys.invalid-parameter`
+       * `initial_prompt_fulfillment` provides the first prompt for the
+       * parameter.
+       * If the user's response does not fill the parameter, a
+       * no-match/no-input event will be triggered, and the fulfillment
+       * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+       * defined) will be called to provide a prompt. The
+       * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+       * the next no-match/no-input event, and so on.
+       * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+       * to handle all following no-match/no-input events after all numbered
+       * no-match/no-input handlers for the parameter are consumed.
+       * A `sys.invalid-parameter` handler can be defined to handle the case
+       * where the parameter values have been `invalidated` by webhook. For
+       * example, if the user's response fill the parameter, however the
+       * parameter was invalidated by webhook, the fulfillment associated with
+       * the `sys.invalid-parameter` handler (if defined) will be called to
+       * provide a prompt.
+       * If the event handler for the corresponding event can't be found on the
+       * parameter, `initial_prompt_fulfillment` will be re-prompted.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+       * </code>
+       */
+      @java.lang.Override
+      public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder>
+          getRepromptEventHandlersOrBuilderList() {
+        return repromptEventHandlers_;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The handlers for parameter-level events, used to provide reprompt for
+       * the parameter or transition to a different page/flow. The supported
+       * events are:
+       * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+       * *   `sys.no-match-default`
+       * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+       * *   `sys.no-input-default`
+       * *   `sys.invalid-parameter`
+       * `initial_prompt_fulfillment` provides the first prompt for the
+       * parameter.
+       * If the user's response does not fill the parameter, a
+       * no-match/no-input event will be triggered, and the fulfillment
+       * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+       * defined) will be called to provide a prompt. The
+       * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+       * the next no-match/no-input event, and so on.
+       * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+       * to handle all following no-match/no-input events after all numbered
+       * no-match/no-input handlers for the parameter are consumed.
+       * A `sys.invalid-parameter` handler can be defined to handle the case
+       * where the parameter values have been `invalidated` by webhook. For
+       * example, if the user's response fill the parameter, however the
+       * parameter was invalidated by webhook, the fulfillment associated with
+       * the `sys.invalid-parameter` handler (if defined) will be called to
+       * provide a prompt.
+       * If the event handler for the corresponding event can't be found on the
+       * parameter, `initial_prompt_fulfillment` will be re-prompted.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+       * </code>
+       */
+      @java.lang.Override
+      public int getRepromptEventHandlersCount() {
+        return repromptEventHandlers_.size();
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The handlers for parameter-level events, used to provide reprompt for
+       * the parameter or transition to a different page/flow. The supported
+       * events are:
+       * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+       * *   `sys.no-match-default`
+       * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+       * *   `sys.no-input-default`
+       * *   `sys.invalid-parameter`
+       * `initial_prompt_fulfillment` provides the first prompt for the
+       * parameter.
+       * If the user's response does not fill the parameter, a
+       * no-match/no-input event will be triggered, and the fulfillment
+       * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+       * defined) will be called to provide a prompt. The
+       * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+       * the next no-match/no-input event, and so on.
+       * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+       * to handle all following no-match/no-input events after all numbered
+       * no-match/no-input handlers for the parameter are consumed.
+       * A `sys.invalid-parameter` handler can be defined to handle the case
+       * where the parameter values have been `invalidated` by webhook. For
+       * example, if the user's response fill the parameter, however the
+       * parameter was invalidated by webhook, the fulfillment associated with
+       * the `sys.invalid-parameter` handler (if defined) will be called to
+       * provide a prompt.
+       * If the event handler for the corresponding event can't be found on the
+       * parameter, `initial_prompt_fulfillment` will be re-prompted.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+       * </code>
+       */
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.EventHandler getRepromptEventHandlers(
+          int index) {
+        return repromptEventHandlers_.get(index);
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The handlers for parameter-level events, used to provide reprompt for
+       * the parameter or transition to a different page/flow. The supported
+       * events are:
+       * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+       * *   `sys.no-match-default`
+       * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+       * *   `sys.no-input-default`
+       * *   `sys.invalid-parameter`
+       * `initial_prompt_fulfillment` provides the first prompt for the
+       * parameter.
+       * If the user's response does not fill the parameter, a
+       * no-match/no-input event will be triggered, and the fulfillment
+       * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+       * defined) will be called to provide a prompt. The
+       * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+       * the next no-match/no-input event, and so on.
+       * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+       * to handle all following no-match/no-input events after all numbered
+       * no-match/no-input handlers for the parameter are consumed.
+       * A `sys.invalid-parameter` handler can be defined to handle the case
+       * where the parameter values have been `invalidated` by webhook. For
+       * example, if the user's response fill the parameter, however the
+       * parameter was invalidated by webhook, the fulfillment associated with
+       * the `sys.invalid-parameter` handler (if defined) will be called to
+       * provide a prompt.
+       * If the event handler for the corresponding event can't be found on the
+       * parameter, `initial_prompt_fulfillment` will be re-prompted.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+       * </code>
+       */
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder
+          getRepromptEventHandlersOrBuilder(int index) {
+        return repromptEventHandlers_.get(index);
+      }
+
+      private byte memoizedIsInitialized = -1;
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        byte isInitialized = memoizedIsInitialized;
+        if (isInitialized == 1) return true;
+        if (isInitialized == 0) return false;
+
+        memoizedIsInitialized = 1;
+        return true;
+      }
+
+      @java.lang.Override
+      public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+        if (initialPromptFulfillment_ != null) {
+          output.writeMessage(3, getInitialPromptFulfillment());
+        }
+        for (int i = 0; i < repromptEventHandlers_.size(); i++) {
+          output.writeMessage(5, repromptEventHandlers_.get(i));
+        }
+        unknownFields.writeTo(output);
+      }
+
+      @java.lang.Override
+      public int getSerializedSize() {
+        int size = memoizedSize;
+        if (size != -1) return size;
+
+        size = 0;
+        if (initialPromptFulfillment_ != null) {
+          size +=
+              com.google.protobuf.CodedOutputStream.computeMessageSize(
+                  3, getInitialPromptFulfillment());
+        }
+        for (int i = 0; i < repromptEventHandlers_.size(); i++) {
+          size +=
+              com.google.protobuf.CodedOutputStream.computeMessageSize(
+                  5, repromptEventHandlers_.get(i));
+        }
+        size += unknownFields.getSerializedSize();
+        memoizedSize = size;
+        return size;
+      }
+
+      @java.lang.Override
+      public boolean equals(final java.lang.Object obj) {
+        if (obj == this) {
+          return true;
+        }
+        if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior)) {
+          return super.equals(obj);
+        }
+        com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior other =
+            (com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior) obj;
+
+        if (hasInitialPromptFulfillment() != other.hasInitialPromptFulfillment()) return false;
+        if (hasInitialPromptFulfillment()) {
+          if (!getInitialPromptFulfillment().equals(other.getInitialPromptFulfillment()))
+            return false;
+        }
+        if (!getRepromptEventHandlersList().equals(other.getRepromptEventHandlersList()))
+          return false;
+        if (!unknownFields.equals(other.unknownFields)) return false;
+        return true;
+      }
+
+      @java.lang.Override
+      public int hashCode() {
+        if (memoizedHashCode != 0) {
+          return memoizedHashCode;
+        }
+        int hash = 41;
+        hash = (19 * hash) + getDescriptor().hashCode();
+        if (hasInitialPromptFulfillment()) {
+          hash = (37 * hash) + INITIAL_PROMPT_FULFILLMENT_FIELD_NUMBER;
+          hash = (53 * hash) + getInitialPromptFulfillment().hashCode();
+        }
+        if (getRepromptEventHandlersCount() > 0) {
+          hash = (37 * hash) + REPROMPT_EVENT_HANDLERS_FIELD_NUMBER;
+          hash = (53 * hash) + getRepromptEventHandlersList().hashCode();
+        }
+        hash = (29 * hash) + unknownFields.hashCode();
+        memoizedHashCode = hash;
+        return hash;
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior parseFrom(
+          java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior parseFrom(
+          java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior parseFrom(
+          com.google.protobuf.ByteString data)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior parseFrom(
+          com.google.protobuf.ByteString data,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior parseFrom(
+          byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior parseFrom(
+          byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior parseFrom(
+          java.io.InputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior parseFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior
+          parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior
+          parseDelimitedFrom(
+              java.io.InputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior parseFrom(
+          com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior parseFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      @java.lang.Override
+      public Builder newBuilderForType() {
+        return newBuilder();
+      }
+
+      public static Builder newBuilder() {
+        return DEFAULT_INSTANCE.toBuilder();
+      }
+
+      public static Builder newBuilder(
+          com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior prototype) {
+        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+      }
+
+      @java.lang.Override
+      public Builder toBuilder() {
+        return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+      }
+
+      @java.lang.Override
+      protected Builder newBuilderForType(
+          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        Builder builder = new Builder(parent);
+        return builder;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Configuration for how the filling of a parameter should be handled.
+       * </pre>
+       *
+       * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior}
+       */
+      public static final class Builder
+          extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+          implements
+          // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior)
+          com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehaviorOrBuilder {
+        public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+          return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+              .internal_static_google_cloud_dialogflow_cx_v3beta1_Form_Parameter_FillBehavior_descriptor;
+        }
+
+        @java.lang.Override
+        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+            internalGetFieldAccessorTable() {
+          return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+              .internal_static_google_cloud_dialogflow_cx_v3beta1_Form_Parameter_FillBehavior_fieldAccessorTable
+              .ensureFieldAccessorsInitialized(
+                  com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior.class,
+                  com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior.Builder.class);
+        }
+
+        // Construct using
+        // com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior.newBuilder()
+        private Builder() {
+          maybeForceBuilderInitialization();
+        }
+
+        private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+          super(parent);
+          maybeForceBuilderInitialization();
+        }
+
+        private void maybeForceBuilderInitialization() {
+          if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+            getRepromptEventHandlersFieldBuilder();
+          }
+        }
+
+        @java.lang.Override
+        public Builder clear() {
+          super.clear();
+          if (initialPromptFulfillmentBuilder_ == null) {
+            initialPromptFulfillment_ = null;
+          } else {
+            initialPromptFulfillment_ = null;
+            initialPromptFulfillmentBuilder_ = null;
+          }
+          if (repromptEventHandlersBuilder_ == null) {
+            repromptEventHandlers_ = java.util.Collections.emptyList();
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            repromptEventHandlersBuilder_.clear();
+          }
+          return this;
+        }
+
+        @java.lang.Override
+        public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+          return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+              .internal_static_google_cloud_dialogflow_cx_v3beta1_Form_Parameter_FillBehavior_descriptor;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior
+            getDefaultInstanceForType() {
+          return com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior
+              .getDefaultInstance();
+        }
+
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior build() {
+          com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior result =
+              buildPartial();
+          if (!result.isInitialized()) {
+            throw newUninitializedMessageException(result);
+          }
+          return result;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior buildPartial() {
+          com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior result =
+              new com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior(this);
+          int from_bitField0_ = bitField0_;
+          if (initialPromptFulfillmentBuilder_ == null) {
+            result.initialPromptFulfillment_ = initialPromptFulfillment_;
+          } else {
+            result.initialPromptFulfillment_ = initialPromptFulfillmentBuilder_.build();
+          }
+          if (repromptEventHandlersBuilder_ == null) {
+            if (((bitField0_ & 0x00000001) != 0)) {
+              repromptEventHandlers_ =
+                  java.util.Collections.unmodifiableList(repromptEventHandlers_);
+              bitField0_ = (bitField0_ & ~0x00000001);
+            }
+            result.repromptEventHandlers_ = repromptEventHandlers_;
+          } else {
+            result.repromptEventHandlers_ = repromptEventHandlersBuilder_.build();
+          }
+          onBuilt();
+          return result;
+        }
+
+        @java.lang.Override
+        public Builder clone() {
+          return super.clone();
+        }
+
+        @java.lang.Override
+        public Builder setField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.setField(field, value);
+        }
+
+        @java.lang.Override
+        public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+          return super.clearField(field);
+        }
+
+        @java.lang.Override
+        public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+          return super.clearOneof(oneof);
+        }
+
+        @java.lang.Override
+        public Builder setRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field,
+            int index,
+            java.lang.Object value) {
+          return super.setRepeatedField(field, index, value);
+        }
+
+        @java.lang.Override
+        public Builder addRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.addRepeatedField(field, value);
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(com.google.protobuf.Message other) {
+          if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior) {
+            return mergeFrom(
+                (com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior) other);
+          } else {
+            super.mergeFrom(other);
+            return this;
+          }
+        }
+
+        public Builder mergeFrom(
+            com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior other) {
+          if (other
+              == com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior
+                  .getDefaultInstance()) return this;
+          if (other.hasInitialPromptFulfillment()) {
+            mergeInitialPromptFulfillment(other.getInitialPromptFulfillment());
+          }
+          if (repromptEventHandlersBuilder_ == null) {
+            if (!other.repromptEventHandlers_.isEmpty()) {
+              if (repromptEventHandlers_.isEmpty()) {
+                repromptEventHandlers_ = other.repromptEventHandlers_;
+                bitField0_ = (bitField0_ & ~0x00000001);
+              } else {
+                ensureRepromptEventHandlersIsMutable();
+                repromptEventHandlers_.addAll(other.repromptEventHandlers_);
+              }
+              onChanged();
+            }
+          } else {
+            if (!other.repromptEventHandlers_.isEmpty()) {
+              if (repromptEventHandlersBuilder_.isEmpty()) {
+                repromptEventHandlersBuilder_.dispose();
+                repromptEventHandlersBuilder_ = null;
+                repromptEventHandlers_ = other.repromptEventHandlers_;
+                bitField0_ = (bitField0_ & ~0x00000001);
+                repromptEventHandlersBuilder_ =
+                    com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                        ? getRepromptEventHandlersFieldBuilder()
+                        : null;
+              } else {
+                repromptEventHandlersBuilder_.addAllMessages(other.repromptEventHandlers_);
+              }
+            }
+          }
+          this.mergeUnknownFields(other.unknownFields);
+          onChanged();
+          return this;
+        }
+
+        @java.lang.Override
+        public final boolean isInitialized() {
+          return true;
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+          com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior parsedMessage = null;
+          try {
+            parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            parsedMessage =
+                (com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior)
+                    e.getUnfinishedMessage();
+            throw e.unwrapIOException();
+          } finally {
+            if (parsedMessage != null) {
+              mergeFrom(parsedMessage);
+            }
+          }
+          return this;
+        }
+
+        private int bitField0_;
+
+        private com.google.cloud.dialogflow.cx.v3beta1.Fulfillment initialPromptFulfillment_;
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment,
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder>
+            initialPromptFulfillmentBuilder_;
+        /**
+         *
+         *
+         * <pre>
+         * Required. The fulfillment to provide the initial prompt that the agent
+         * can present to the user in order to fill the parameter.
+         * </pre>
+         *
+         * <code>
+         * .google.cloud.dialogflow.cx.v3beta1.Fulfillment initial_prompt_fulfillment = 3 [(.google.api.field_behavior) = REQUIRED];
+         * </code>
+         *
+         * @return Whether the initialPromptFulfillment field is set.
+         */
+        public boolean hasInitialPromptFulfillment() {
+          return initialPromptFulfillmentBuilder_ != null || initialPromptFulfillment_ != null;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Required. The fulfillment to provide the initial prompt that the agent
+         * can present to the user in order to fill the parameter.
+         * </pre>
+         *
+         * <code>
+         * .google.cloud.dialogflow.cx.v3beta1.Fulfillment initial_prompt_fulfillment = 3 [(.google.api.field_behavior) = REQUIRED];
+         * </code>
+         *
+         * @return The initialPromptFulfillment.
+         */
+        public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment getInitialPromptFulfillment() {
+          if (initialPromptFulfillmentBuilder_ == null) {
+            return initialPromptFulfillment_ == null
+                ? com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.getDefaultInstance()
+                : initialPromptFulfillment_;
+          } else {
+            return initialPromptFulfillmentBuilder_.getMessage();
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Required. The fulfillment to provide the initial prompt that the agent
+         * can present to the user in order to fill the parameter.
+         * </pre>
+         *
+         * <code>
+         * .google.cloud.dialogflow.cx.v3beta1.Fulfillment initial_prompt_fulfillment = 3 [(.google.api.field_behavior) = REQUIRED];
+         * </code>
+         */
+        public Builder setInitialPromptFulfillment(
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment value) {
+          if (initialPromptFulfillmentBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            initialPromptFulfillment_ = value;
+            onChanged();
+          } else {
+            initialPromptFulfillmentBuilder_.setMessage(value);
+          }
+
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Required. The fulfillment to provide the initial prompt that the agent
+         * can present to the user in order to fill the parameter.
+         * </pre>
+         *
+         * <code>
+         * .google.cloud.dialogflow.cx.v3beta1.Fulfillment initial_prompt_fulfillment = 3 [(.google.api.field_behavior) = REQUIRED];
+         * </code>
+         */
+        public Builder setInitialPromptFulfillment(
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder builderForValue) {
+          if (initialPromptFulfillmentBuilder_ == null) {
+            initialPromptFulfillment_ = builderForValue.build();
+            onChanged();
+          } else {
+            initialPromptFulfillmentBuilder_.setMessage(builderForValue.build());
+          }
+
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Required. The fulfillment to provide the initial prompt that the agent
+         * can present to the user in order to fill the parameter.
+         * </pre>
+         *
+         * <code>
+         * .google.cloud.dialogflow.cx.v3beta1.Fulfillment initial_prompt_fulfillment = 3 [(.google.api.field_behavior) = REQUIRED];
+         * </code>
+         */
+        public Builder mergeInitialPromptFulfillment(
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment value) {
+          if (initialPromptFulfillmentBuilder_ == null) {
+            if (initialPromptFulfillment_ != null) {
+              initialPromptFulfillment_ =
+                  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.newBuilder(
+                          initialPromptFulfillment_)
+                      .mergeFrom(value)
+                      .buildPartial();
+            } else {
+              initialPromptFulfillment_ = value;
+            }
+            onChanged();
+          } else {
+            initialPromptFulfillmentBuilder_.mergeFrom(value);
+          }
+
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Required. The fulfillment to provide the initial prompt that the agent
+         * can present to the user in order to fill the parameter.
+         * </pre>
+         *
+         * <code>
+         * .google.cloud.dialogflow.cx.v3beta1.Fulfillment initial_prompt_fulfillment = 3 [(.google.api.field_behavior) = REQUIRED];
+         * </code>
+         */
+        public Builder clearInitialPromptFulfillment() {
+          if (initialPromptFulfillmentBuilder_ == null) {
+            initialPromptFulfillment_ = null;
+            onChanged();
+          } else {
+            initialPromptFulfillment_ = null;
+            initialPromptFulfillmentBuilder_ = null;
+          }
+
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Required. The fulfillment to provide the initial prompt that the agent
+         * can present to the user in order to fill the parameter.
+         * </pre>
+         *
+         * <code>
+         * .google.cloud.dialogflow.cx.v3beta1.Fulfillment initial_prompt_fulfillment = 3 [(.google.api.field_behavior) = REQUIRED];
+         * </code>
+         */
+        public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder
+            getInitialPromptFulfillmentBuilder() {
+
+          onChanged();
+          return getInitialPromptFulfillmentFieldBuilder().getBuilder();
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Required. The fulfillment to provide the initial prompt that the agent
+         * can present to the user in order to fill the parameter.
+         * </pre>
+         *
+         * <code>
+         * .google.cloud.dialogflow.cx.v3beta1.Fulfillment initial_prompt_fulfillment = 3 [(.google.api.field_behavior) = REQUIRED];
+         * </code>
+         */
+        public com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder
+            getInitialPromptFulfillmentOrBuilder() {
+          if (initialPromptFulfillmentBuilder_ != null) {
+            return initialPromptFulfillmentBuilder_.getMessageOrBuilder();
+          } else {
+            return initialPromptFulfillment_ == null
+                ? com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.getDefaultInstance()
+                : initialPromptFulfillment_;
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Required. The fulfillment to provide the initial prompt that the agent
+         * can present to the user in order to fill the parameter.
+         * </pre>
+         *
+         * <code>
+         * .google.cloud.dialogflow.cx.v3beta1.Fulfillment initial_prompt_fulfillment = 3 [(.google.api.field_behavior) = REQUIRED];
+         * </code>
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment,
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder>
+            getInitialPromptFulfillmentFieldBuilder() {
+          if (initialPromptFulfillmentBuilder_ == null) {
+            initialPromptFulfillmentBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.cloud.dialogflow.cx.v3beta1.Fulfillment,
+                    com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder,
+                    com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder>(
+                    getInitialPromptFulfillment(), getParentForChildren(), isClean());
+            initialPromptFulfillment_ = null;
+          }
+          return initialPromptFulfillmentBuilder_;
+        }
+
+        private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EventHandler>
+            repromptEventHandlers_ = java.util.Collections.emptyList();
+
+        private void ensureRepromptEventHandlersIsMutable() {
+          if (!((bitField0_ & 0x00000001) != 0)) {
+            repromptEventHandlers_ =
+                new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.EventHandler>(
+                    repromptEventHandlers_);
+            bitField0_ |= 0x00000001;
+          }
+        }
+
+        private com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.EventHandler,
+                com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder>
+            repromptEventHandlersBuilder_;
+
+        /**
+         *
+         *
+         * <pre>
+         * The handlers for parameter-level events, used to provide reprompt for
+         * the parameter or transition to a different page/flow. The supported
+         * events are:
+         * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-match-default`
+         * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-input-default`
+         * *   `sys.invalid-parameter`
+         * `initial_prompt_fulfillment` provides the first prompt for the
+         * parameter.
+         * If the user's response does not fill the parameter, a
+         * no-match/no-input event will be triggered, and the fulfillment
+         * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+         * defined) will be called to provide a prompt. The
+         * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+         * the next no-match/no-input event, and so on.
+         * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+         * to handle all following no-match/no-input events after all numbered
+         * no-match/no-input handlers for the parameter are consumed.
+         * A `sys.invalid-parameter` handler can be defined to handle the case
+         * where the parameter values have been `invalidated` by webhook. For
+         * example, if the user's response fill the parameter, however the
+         * parameter was invalidated by webhook, the fulfillment associated with
+         * the `sys.invalid-parameter` handler (if defined) will be called to
+         * provide a prompt.
+         * If the event handler for the corresponding event can't be found on the
+         * parameter, `initial_prompt_fulfillment` will be re-prompted.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+         * </code>
+         */
+        public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EventHandler>
+            getRepromptEventHandlersList() {
+          if (repromptEventHandlersBuilder_ == null) {
+            return java.util.Collections.unmodifiableList(repromptEventHandlers_);
+          } else {
+            return repromptEventHandlersBuilder_.getMessageList();
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The handlers for parameter-level events, used to provide reprompt for
+         * the parameter or transition to a different page/flow. The supported
+         * events are:
+         * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-match-default`
+         * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-input-default`
+         * *   `sys.invalid-parameter`
+         * `initial_prompt_fulfillment` provides the first prompt for the
+         * parameter.
+         * If the user's response does not fill the parameter, a
+         * no-match/no-input event will be triggered, and the fulfillment
+         * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+         * defined) will be called to provide a prompt. The
+         * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+         * the next no-match/no-input event, and so on.
+         * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+         * to handle all following no-match/no-input events after all numbered
+         * no-match/no-input handlers for the parameter are consumed.
+         * A `sys.invalid-parameter` handler can be defined to handle the case
+         * where the parameter values have been `invalidated` by webhook. For
+         * example, if the user's response fill the parameter, however the
+         * parameter was invalidated by webhook, the fulfillment associated with
+         * the `sys.invalid-parameter` handler (if defined) will be called to
+         * provide a prompt.
+         * If the event handler for the corresponding event can't be found on the
+         * parameter, `initial_prompt_fulfillment` will be re-prompted.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+         * </code>
+         */
+        public int getRepromptEventHandlersCount() {
+          if (repromptEventHandlersBuilder_ == null) {
+            return repromptEventHandlers_.size();
+          } else {
+            return repromptEventHandlersBuilder_.getCount();
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The handlers for parameter-level events, used to provide reprompt for
+         * the parameter or transition to a different page/flow. The supported
+         * events are:
+         * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-match-default`
+         * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-input-default`
+         * *   `sys.invalid-parameter`
+         * `initial_prompt_fulfillment` provides the first prompt for the
+         * parameter.
+         * If the user's response does not fill the parameter, a
+         * no-match/no-input event will be triggered, and the fulfillment
+         * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+         * defined) will be called to provide a prompt. The
+         * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+         * the next no-match/no-input event, and so on.
+         * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+         * to handle all following no-match/no-input events after all numbered
+         * no-match/no-input handlers for the parameter are consumed.
+         * A `sys.invalid-parameter` handler can be defined to handle the case
+         * where the parameter values have been `invalidated` by webhook. For
+         * example, if the user's response fill the parameter, however the
+         * parameter was invalidated by webhook, the fulfillment associated with
+         * the `sys.invalid-parameter` handler (if defined) will be called to
+         * provide a prompt.
+         * If the event handler for the corresponding event can't be found on the
+         * parameter, `initial_prompt_fulfillment` will be re-prompted.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+         * </code>
+         */
+        public com.google.cloud.dialogflow.cx.v3beta1.EventHandler getRepromptEventHandlers(
+            int index) {
+          if (repromptEventHandlersBuilder_ == null) {
+            return repromptEventHandlers_.get(index);
+          } else {
+            return repromptEventHandlersBuilder_.getMessage(index);
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The handlers for parameter-level events, used to provide reprompt for
+         * the parameter or transition to a different page/flow. The supported
+         * events are:
+         * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-match-default`
+         * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-input-default`
+         * *   `sys.invalid-parameter`
+         * `initial_prompt_fulfillment` provides the first prompt for the
+         * parameter.
+         * If the user's response does not fill the parameter, a
+         * no-match/no-input event will be triggered, and the fulfillment
+         * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+         * defined) will be called to provide a prompt. The
+         * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+         * the next no-match/no-input event, and so on.
+         * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+         * to handle all following no-match/no-input events after all numbered
+         * no-match/no-input handlers for the parameter are consumed.
+         * A `sys.invalid-parameter` handler can be defined to handle the case
+         * where the parameter values have been `invalidated` by webhook. For
+         * example, if the user's response fill the parameter, however the
+         * parameter was invalidated by webhook, the fulfillment associated with
+         * the `sys.invalid-parameter` handler (if defined) will be called to
+         * provide a prompt.
+         * If the event handler for the corresponding event can't be found on the
+         * parameter, `initial_prompt_fulfillment` will be re-prompted.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+         * </code>
+         */
+        public Builder setRepromptEventHandlers(
+            int index, com.google.cloud.dialogflow.cx.v3beta1.EventHandler value) {
+          if (repromptEventHandlersBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureRepromptEventHandlersIsMutable();
+            repromptEventHandlers_.set(index, value);
+            onChanged();
+          } else {
+            repromptEventHandlersBuilder_.setMessage(index, value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The handlers for parameter-level events, used to provide reprompt for
+         * the parameter or transition to a different page/flow. The supported
+         * events are:
+         * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-match-default`
+         * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-input-default`
+         * *   `sys.invalid-parameter`
+         * `initial_prompt_fulfillment` provides the first prompt for the
+         * parameter.
+         * If the user's response does not fill the parameter, a
+         * no-match/no-input event will be triggered, and the fulfillment
+         * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+         * defined) will be called to provide a prompt. The
+         * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+         * the next no-match/no-input event, and so on.
+         * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+         * to handle all following no-match/no-input events after all numbered
+         * no-match/no-input handlers for the parameter are consumed.
+         * A `sys.invalid-parameter` handler can be defined to handle the case
+         * where the parameter values have been `invalidated` by webhook. For
+         * example, if the user's response fill the parameter, however the
+         * parameter was invalidated by webhook, the fulfillment associated with
+         * the `sys.invalid-parameter` handler (if defined) will be called to
+         * provide a prompt.
+         * If the event handler for the corresponding event can't be found on the
+         * parameter, `initial_prompt_fulfillment` will be re-prompted.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+         * </code>
+         */
+        public Builder setRepromptEventHandlers(
+            int index,
+            com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder builderForValue) {
+          if (repromptEventHandlersBuilder_ == null) {
+            ensureRepromptEventHandlersIsMutable();
+            repromptEventHandlers_.set(index, builderForValue.build());
+            onChanged();
+          } else {
+            repromptEventHandlersBuilder_.setMessage(index, builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The handlers for parameter-level events, used to provide reprompt for
+         * the parameter or transition to a different page/flow. The supported
+         * events are:
+         * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-match-default`
+         * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-input-default`
+         * *   `sys.invalid-parameter`
+         * `initial_prompt_fulfillment` provides the first prompt for the
+         * parameter.
+         * If the user's response does not fill the parameter, a
+         * no-match/no-input event will be triggered, and the fulfillment
+         * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+         * defined) will be called to provide a prompt. The
+         * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+         * the next no-match/no-input event, and so on.
+         * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+         * to handle all following no-match/no-input events after all numbered
+         * no-match/no-input handlers for the parameter are consumed.
+         * A `sys.invalid-parameter` handler can be defined to handle the case
+         * where the parameter values have been `invalidated` by webhook. For
+         * example, if the user's response fill the parameter, however the
+         * parameter was invalidated by webhook, the fulfillment associated with
+         * the `sys.invalid-parameter` handler (if defined) will be called to
+         * provide a prompt.
+         * If the event handler for the corresponding event can't be found on the
+         * parameter, `initial_prompt_fulfillment` will be re-prompted.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+         * </code>
+         */
+        public Builder addRepromptEventHandlers(
+            com.google.cloud.dialogflow.cx.v3beta1.EventHandler value) {
+          if (repromptEventHandlersBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureRepromptEventHandlersIsMutable();
+            repromptEventHandlers_.add(value);
+            onChanged();
+          } else {
+            repromptEventHandlersBuilder_.addMessage(value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The handlers for parameter-level events, used to provide reprompt for
+         * the parameter or transition to a different page/flow. The supported
+         * events are:
+         * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-match-default`
+         * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-input-default`
+         * *   `sys.invalid-parameter`
+         * `initial_prompt_fulfillment` provides the first prompt for the
+         * parameter.
+         * If the user's response does not fill the parameter, a
+         * no-match/no-input event will be triggered, and the fulfillment
+         * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+         * defined) will be called to provide a prompt. The
+         * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+         * the next no-match/no-input event, and so on.
+         * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+         * to handle all following no-match/no-input events after all numbered
+         * no-match/no-input handlers for the parameter are consumed.
+         * A `sys.invalid-parameter` handler can be defined to handle the case
+         * where the parameter values have been `invalidated` by webhook. For
+         * example, if the user's response fill the parameter, however the
+         * parameter was invalidated by webhook, the fulfillment associated with
+         * the `sys.invalid-parameter` handler (if defined) will be called to
+         * provide a prompt.
+         * If the event handler for the corresponding event can't be found on the
+         * parameter, `initial_prompt_fulfillment` will be re-prompted.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+         * </code>
+         */
+        public Builder addRepromptEventHandlers(
+            int index, com.google.cloud.dialogflow.cx.v3beta1.EventHandler value) {
+          if (repromptEventHandlersBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureRepromptEventHandlersIsMutable();
+            repromptEventHandlers_.add(index, value);
+            onChanged();
+          } else {
+            repromptEventHandlersBuilder_.addMessage(index, value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The handlers for parameter-level events, used to provide reprompt for
+         * the parameter or transition to a different page/flow. The supported
+         * events are:
+         * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-match-default`
+         * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-input-default`
+         * *   `sys.invalid-parameter`
+         * `initial_prompt_fulfillment` provides the first prompt for the
+         * parameter.
+         * If the user's response does not fill the parameter, a
+         * no-match/no-input event will be triggered, and the fulfillment
+         * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+         * defined) will be called to provide a prompt. The
+         * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+         * the next no-match/no-input event, and so on.
+         * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+         * to handle all following no-match/no-input events after all numbered
+         * no-match/no-input handlers for the parameter are consumed.
+         * A `sys.invalid-parameter` handler can be defined to handle the case
+         * where the parameter values have been `invalidated` by webhook. For
+         * example, if the user's response fill the parameter, however the
+         * parameter was invalidated by webhook, the fulfillment associated with
+         * the `sys.invalid-parameter` handler (if defined) will be called to
+         * provide a prompt.
+         * If the event handler for the corresponding event can't be found on the
+         * parameter, `initial_prompt_fulfillment` will be re-prompted.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+         * </code>
+         */
+        public Builder addRepromptEventHandlers(
+            com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder builderForValue) {
+          if (repromptEventHandlersBuilder_ == null) {
+            ensureRepromptEventHandlersIsMutable();
+            repromptEventHandlers_.add(builderForValue.build());
+            onChanged();
+          } else {
+            repromptEventHandlersBuilder_.addMessage(builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The handlers for parameter-level events, used to provide reprompt for
+         * the parameter or transition to a different page/flow. The supported
+         * events are:
+         * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-match-default`
+         * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-input-default`
+         * *   `sys.invalid-parameter`
+         * `initial_prompt_fulfillment` provides the first prompt for the
+         * parameter.
+         * If the user's response does not fill the parameter, a
+         * no-match/no-input event will be triggered, and the fulfillment
+         * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+         * defined) will be called to provide a prompt. The
+         * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+         * the next no-match/no-input event, and so on.
+         * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+         * to handle all following no-match/no-input events after all numbered
+         * no-match/no-input handlers for the parameter are consumed.
+         * A `sys.invalid-parameter` handler can be defined to handle the case
+         * where the parameter values have been `invalidated` by webhook. For
+         * example, if the user's response fill the parameter, however the
+         * parameter was invalidated by webhook, the fulfillment associated with
+         * the `sys.invalid-parameter` handler (if defined) will be called to
+         * provide a prompt.
+         * If the event handler for the corresponding event can't be found on the
+         * parameter, `initial_prompt_fulfillment` will be re-prompted.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+         * </code>
+         */
+        public Builder addRepromptEventHandlers(
+            int index,
+            com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder builderForValue) {
+          if (repromptEventHandlersBuilder_ == null) {
+            ensureRepromptEventHandlersIsMutable();
+            repromptEventHandlers_.add(index, builderForValue.build());
+            onChanged();
+          } else {
+            repromptEventHandlersBuilder_.addMessage(index, builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The handlers for parameter-level events, used to provide reprompt for
+         * the parameter or transition to a different page/flow. The supported
+         * events are:
+         * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-match-default`
+         * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-input-default`
+         * *   `sys.invalid-parameter`
+         * `initial_prompt_fulfillment` provides the first prompt for the
+         * parameter.
+         * If the user's response does not fill the parameter, a
+         * no-match/no-input event will be triggered, and the fulfillment
+         * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+         * defined) will be called to provide a prompt. The
+         * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+         * the next no-match/no-input event, and so on.
+         * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+         * to handle all following no-match/no-input events after all numbered
+         * no-match/no-input handlers for the parameter are consumed.
+         * A `sys.invalid-parameter` handler can be defined to handle the case
+         * where the parameter values have been `invalidated` by webhook. For
+         * example, if the user's response fill the parameter, however the
+         * parameter was invalidated by webhook, the fulfillment associated with
+         * the `sys.invalid-parameter` handler (if defined) will be called to
+         * provide a prompt.
+         * If the event handler for the corresponding event can't be found on the
+         * parameter, `initial_prompt_fulfillment` will be re-prompted.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+         * </code>
+         */
+        public Builder addAllRepromptEventHandlers(
+            java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.EventHandler>
+                values) {
+          if (repromptEventHandlersBuilder_ == null) {
+            ensureRepromptEventHandlersIsMutable();
+            com.google.protobuf.AbstractMessageLite.Builder.addAll(values, repromptEventHandlers_);
+            onChanged();
+          } else {
+            repromptEventHandlersBuilder_.addAllMessages(values);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The handlers for parameter-level events, used to provide reprompt for
+         * the parameter or transition to a different page/flow. The supported
+         * events are:
+         * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-match-default`
+         * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-input-default`
+         * *   `sys.invalid-parameter`
+         * `initial_prompt_fulfillment` provides the first prompt for the
+         * parameter.
+         * If the user's response does not fill the parameter, a
+         * no-match/no-input event will be triggered, and the fulfillment
+         * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+         * defined) will be called to provide a prompt. The
+         * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+         * the next no-match/no-input event, and so on.
+         * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+         * to handle all following no-match/no-input events after all numbered
+         * no-match/no-input handlers for the parameter are consumed.
+         * A `sys.invalid-parameter` handler can be defined to handle the case
+         * where the parameter values have been `invalidated` by webhook. For
+         * example, if the user's response fill the parameter, however the
+         * parameter was invalidated by webhook, the fulfillment associated with
+         * the `sys.invalid-parameter` handler (if defined) will be called to
+         * provide a prompt.
+         * If the event handler for the corresponding event can't be found on the
+         * parameter, `initial_prompt_fulfillment` will be re-prompted.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+         * </code>
+         */
+        public Builder clearRepromptEventHandlers() {
+          if (repromptEventHandlersBuilder_ == null) {
+            repromptEventHandlers_ = java.util.Collections.emptyList();
+            bitField0_ = (bitField0_ & ~0x00000001);
+            onChanged();
+          } else {
+            repromptEventHandlersBuilder_.clear();
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The handlers for parameter-level events, used to provide reprompt for
+         * the parameter or transition to a different page/flow. The supported
+         * events are:
+         * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-match-default`
+         * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-input-default`
+         * *   `sys.invalid-parameter`
+         * `initial_prompt_fulfillment` provides the first prompt for the
+         * parameter.
+         * If the user's response does not fill the parameter, a
+         * no-match/no-input event will be triggered, and the fulfillment
+         * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+         * defined) will be called to provide a prompt. The
+         * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+         * the next no-match/no-input event, and so on.
+         * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+         * to handle all following no-match/no-input events after all numbered
+         * no-match/no-input handlers for the parameter are consumed.
+         * A `sys.invalid-parameter` handler can be defined to handle the case
+         * where the parameter values have been `invalidated` by webhook. For
+         * example, if the user's response fill the parameter, however the
+         * parameter was invalidated by webhook, the fulfillment associated with
+         * the `sys.invalid-parameter` handler (if defined) will be called to
+         * provide a prompt.
+         * If the event handler for the corresponding event can't be found on the
+         * parameter, `initial_prompt_fulfillment` will be re-prompted.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+         * </code>
+         */
+        public Builder removeRepromptEventHandlers(int index) {
+          if (repromptEventHandlersBuilder_ == null) {
+            ensureRepromptEventHandlersIsMutable();
+            repromptEventHandlers_.remove(index);
+            onChanged();
+          } else {
+            repromptEventHandlersBuilder_.remove(index);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The handlers for parameter-level events, used to provide reprompt for
+         * the parameter or transition to a different page/flow. The supported
+         * events are:
+         * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-match-default`
+         * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-input-default`
+         * *   `sys.invalid-parameter`
+         * `initial_prompt_fulfillment` provides the first prompt for the
+         * parameter.
+         * If the user's response does not fill the parameter, a
+         * no-match/no-input event will be triggered, and the fulfillment
+         * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+         * defined) will be called to provide a prompt. The
+         * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+         * the next no-match/no-input event, and so on.
+         * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+         * to handle all following no-match/no-input events after all numbered
+         * no-match/no-input handlers for the parameter are consumed.
+         * A `sys.invalid-parameter` handler can be defined to handle the case
+         * where the parameter values have been `invalidated` by webhook. For
+         * example, if the user's response fill the parameter, however the
+         * parameter was invalidated by webhook, the fulfillment associated with
+         * the `sys.invalid-parameter` handler (if defined) will be called to
+         * provide a prompt.
+         * If the event handler for the corresponding event can't be found on the
+         * parameter, `initial_prompt_fulfillment` will be re-prompted.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+         * </code>
+         */
+        public com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder
+            getRepromptEventHandlersBuilder(int index) {
+          return getRepromptEventHandlersFieldBuilder().getBuilder(index);
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The handlers for parameter-level events, used to provide reprompt for
+         * the parameter or transition to a different page/flow. The supported
+         * events are:
+         * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-match-default`
+         * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-input-default`
+         * *   `sys.invalid-parameter`
+         * `initial_prompt_fulfillment` provides the first prompt for the
+         * parameter.
+         * If the user's response does not fill the parameter, a
+         * no-match/no-input event will be triggered, and the fulfillment
+         * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+         * defined) will be called to provide a prompt. The
+         * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+         * the next no-match/no-input event, and so on.
+         * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+         * to handle all following no-match/no-input events after all numbered
+         * no-match/no-input handlers for the parameter are consumed.
+         * A `sys.invalid-parameter` handler can be defined to handle the case
+         * where the parameter values have been `invalidated` by webhook. For
+         * example, if the user's response fill the parameter, however the
+         * parameter was invalidated by webhook, the fulfillment associated with
+         * the `sys.invalid-parameter` handler (if defined) will be called to
+         * provide a prompt.
+         * If the event handler for the corresponding event can't be found on the
+         * parameter, `initial_prompt_fulfillment` will be re-prompted.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+         * </code>
+         */
+        public com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder
+            getRepromptEventHandlersOrBuilder(int index) {
+          if (repromptEventHandlersBuilder_ == null) {
+            return repromptEventHandlers_.get(index);
+          } else {
+            return repromptEventHandlersBuilder_.getMessageOrBuilder(index);
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The handlers for parameter-level events, used to provide reprompt for
+         * the parameter or transition to a different page/flow. The supported
+         * events are:
+         * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-match-default`
+         * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-input-default`
+         * *   `sys.invalid-parameter`
+         * `initial_prompt_fulfillment` provides the first prompt for the
+         * parameter.
+         * If the user's response does not fill the parameter, a
+         * no-match/no-input event will be triggered, and the fulfillment
+         * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+         * defined) will be called to provide a prompt. The
+         * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+         * the next no-match/no-input event, and so on.
+         * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+         * to handle all following no-match/no-input events after all numbered
+         * no-match/no-input handlers for the parameter are consumed.
+         * A `sys.invalid-parameter` handler can be defined to handle the case
+         * where the parameter values have been `invalidated` by webhook. For
+         * example, if the user's response fill the parameter, however the
+         * parameter was invalidated by webhook, the fulfillment associated with
+         * the `sys.invalid-parameter` handler (if defined) will be called to
+         * provide a prompt.
+         * If the event handler for the corresponding event can't be found on the
+         * parameter, `initial_prompt_fulfillment` will be re-prompted.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+         * </code>
+         */
+        public java.util.List<
+                ? extends com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder>
+            getRepromptEventHandlersOrBuilderList() {
+          if (repromptEventHandlersBuilder_ != null) {
+            return repromptEventHandlersBuilder_.getMessageOrBuilderList();
+          } else {
+            return java.util.Collections.unmodifiableList(repromptEventHandlers_);
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The handlers for parameter-level events, used to provide reprompt for
+         * the parameter or transition to a different page/flow. The supported
+         * events are:
+         * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-match-default`
+         * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-input-default`
+         * *   `sys.invalid-parameter`
+         * `initial_prompt_fulfillment` provides the first prompt for the
+         * parameter.
+         * If the user's response does not fill the parameter, a
+         * no-match/no-input event will be triggered, and the fulfillment
+         * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+         * defined) will be called to provide a prompt. The
+         * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+         * the next no-match/no-input event, and so on.
+         * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+         * to handle all following no-match/no-input events after all numbered
+         * no-match/no-input handlers for the parameter are consumed.
+         * A `sys.invalid-parameter` handler can be defined to handle the case
+         * where the parameter values have been `invalidated` by webhook. For
+         * example, if the user's response fill the parameter, however the
+         * parameter was invalidated by webhook, the fulfillment associated with
+         * the `sys.invalid-parameter` handler (if defined) will be called to
+         * provide a prompt.
+         * If the event handler for the corresponding event can't be found on the
+         * parameter, `initial_prompt_fulfillment` will be re-prompted.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+         * </code>
+         */
+        public com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder
+            addRepromptEventHandlersBuilder() {
+          return getRepromptEventHandlersFieldBuilder()
+              .addBuilder(com.google.cloud.dialogflow.cx.v3beta1.EventHandler.getDefaultInstance());
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The handlers for parameter-level events, used to provide reprompt for
+         * the parameter or transition to a different page/flow. The supported
+         * events are:
+         * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-match-default`
+         * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-input-default`
+         * *   `sys.invalid-parameter`
+         * `initial_prompt_fulfillment` provides the first prompt for the
+         * parameter.
+         * If the user's response does not fill the parameter, a
+         * no-match/no-input event will be triggered, and the fulfillment
+         * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+         * defined) will be called to provide a prompt. The
+         * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+         * the next no-match/no-input event, and so on.
+         * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+         * to handle all following no-match/no-input events after all numbered
+         * no-match/no-input handlers for the parameter are consumed.
+         * A `sys.invalid-parameter` handler can be defined to handle the case
+         * where the parameter values have been `invalidated` by webhook. For
+         * example, if the user's response fill the parameter, however the
+         * parameter was invalidated by webhook, the fulfillment associated with
+         * the `sys.invalid-parameter` handler (if defined) will be called to
+         * provide a prompt.
+         * If the event handler for the corresponding event can't be found on the
+         * parameter, `initial_prompt_fulfillment` will be re-prompted.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+         * </code>
+         */
+        public com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder
+            addRepromptEventHandlersBuilder(int index) {
+          return getRepromptEventHandlersFieldBuilder()
+              .addBuilder(
+                  index, com.google.cloud.dialogflow.cx.v3beta1.EventHandler.getDefaultInstance());
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The handlers for parameter-level events, used to provide reprompt for
+         * the parameter or transition to a different page/flow. The supported
+         * events are:
+         * *   `sys.no-match-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-match-default`
+         * *   `sys.no-input-&lt;N&gt;`, where N can be from 1 to 6
+         * *   `sys.no-input-default`
+         * *   `sys.invalid-parameter`
+         * `initial_prompt_fulfillment` provides the first prompt for the
+         * parameter.
+         * If the user's response does not fill the parameter, a
+         * no-match/no-input event will be triggered, and the fulfillment
+         * associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+         * defined) will be called to provide a prompt. The
+         * `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+         * the next no-match/no-input event, and so on.
+         * A `sys.no-match-default` or `sys.no-input-default` handler will be used
+         * to handle all following no-match/no-input events after all numbered
+         * no-match/no-input handlers for the parameter are consumed.
+         * A `sys.invalid-parameter` handler can be defined to handle the case
+         * where the parameter values have been `invalidated` by webhook. For
+         * example, if the user's response fill the parameter, however the
+         * parameter was invalidated by webhook, the fulfillment associated with
+         * the `sys.invalid-parameter` handler (if defined) will be called to
+         * provide a prompt.
+         * If the event handler for the corresponding event can't be found on the
+         * parameter, `initial_prompt_fulfillment` will be re-prompted.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler reprompt_event_handlers = 5;
+         * </code>
+         */
+        public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder>
+            getRepromptEventHandlersBuilderList() {
+          return getRepromptEventHandlersFieldBuilder().getBuilderList();
+        }
+
+        private com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.EventHandler,
+                com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder>
+            getRepromptEventHandlersFieldBuilder() {
+          if (repromptEventHandlersBuilder_ == null) {
+            repromptEventHandlersBuilder_ =
+                new com.google.protobuf.RepeatedFieldBuilderV3<
+                    com.google.cloud.dialogflow.cx.v3beta1.EventHandler,
+                    com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder,
+                    com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder>(
+                    repromptEventHandlers_,
+                    ((bitField0_ & 0x00000001) != 0),
+                    getParentForChildren(),
+                    isClean());
+            repromptEventHandlers_ = null;
+          }
+          return repromptEventHandlersBuilder_;
+        }
+
+        @java.lang.Override
+        public final Builder setUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.setUnknownFields(unknownFields);
+        }
+
+        @java.lang.Override
+        public final Builder mergeUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.mergeUnknownFields(unknownFields);
+        }
+
+        // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior)
+      }
+
+      // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior)
+      private static final com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior
+          DEFAULT_INSTANCE;
+
+      static {
+        DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior();
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior
+          getDefaultInstance() {
+        return DEFAULT_INSTANCE;
+      }
+
+      private static final com.google.protobuf.Parser<FillBehavior> PARSER =
+          new com.google.protobuf.AbstractParser<FillBehavior>() {
+            @java.lang.Override
+            public FillBehavior parsePartialFrom(
+                com.google.protobuf.CodedInputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+              return new FillBehavior(input, extensionRegistry);
+            }
+          };
+
+      public static com.google.protobuf.Parser<FillBehavior> parser() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Parser<FillBehavior> getParserForType() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior
+          getDefaultInstanceForType() {
+        return DEFAULT_INSTANCE;
+      }
+    }
+
+    public static final int DISPLAY_NAME_FIELD_NUMBER = 1;
+    private volatile java.lang.Object displayName_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the parameter, unique within the
+     * form.
+     * </pre>
+     *
+     * <code>string display_name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The displayName.
+     */
+    @java.lang.Override
+    public java.lang.String getDisplayName() {
+      java.lang.Object ref = displayName_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        displayName_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the parameter, unique within the
+     * form.
+     * </pre>
+     *
+     * <code>string display_name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for displayName.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getDisplayNameBytes() {
+      java.lang.Object ref = displayName_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        displayName_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    public static final int REQUIRED_FIELD_NUMBER = 2;
+    private boolean required_;
+    /**
+     *
+     *
+     * <pre>
+     * Indicates whether the parameter is required. Optional parameters will not
+     * trigger prompts; however, they are filled if the user specifies them.
+     * Required parameters must be filled before form filling concludes.
+     * </pre>
+     *
+     * <code>bool required = 2;</code>
+     *
+     * @return The required.
+     */
+    @java.lang.Override
+    public boolean getRequired() {
+      return required_;
+    }
+
+    public static final int ENTITY_TYPE_FIELD_NUMBER = 3;
+    private volatile java.lang.Object entityType_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type of the parameter.
+     * Format: `projects/-/locations/-/agents/-/entityTypes/&lt;System Entity Type
+     * ID&gt;` for system entity types (for example,
+     * `projects/-/locations/-/agents/-/entityTypes/sys.date`), or
+     * `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;` for developer entity types.
+     * </pre>
+     *
+     * <code>
+     * string entity_type = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The entityType.
+     */
+    @java.lang.Override
+    public java.lang.String getEntityType() {
+      java.lang.Object ref = entityType_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        entityType_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type of the parameter.
+     * Format: `projects/-/locations/-/agents/-/entityTypes/&lt;System Entity Type
+     * ID&gt;` for system entity types (for example,
+     * `projects/-/locations/-/agents/-/entityTypes/sys.date`), or
+     * `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;` for developer entity types.
+     * </pre>
+     *
+     * <code>
+     * string entity_type = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for entityType.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getEntityTypeBytes() {
+      java.lang.Object ref = entityType_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        entityType_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    public static final int IS_LIST_FIELD_NUMBER = 4;
+    private boolean isList_;
+    /**
+     *
+     *
+     * <pre>
+     * Indicates whether the parameter represents a list of values.
+     * </pre>
+     *
+     * <code>bool is_list = 4;</code>
+     *
+     * @return The isList.
+     */
+    @java.lang.Override
+    public boolean getIsList() {
+      return isList_;
+    }
+
+    public static final int FILL_BEHAVIOR_FIELD_NUMBER = 7;
+    private com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior fillBehavior_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. Defines fill behavior for the parameter.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior fill_behavior = 7 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the fillBehavior field is set.
+     */
+    @java.lang.Override
+    public boolean hasFillBehavior() {
+      return fillBehavior_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Defines fill behavior for the parameter.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior fill_behavior = 7 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The fillBehavior.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior getFillBehavior() {
+      return fillBehavior_ == null
+          ? com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior.getDefaultInstance()
+          : fillBehavior_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Defines fill behavior for the parameter.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior fill_behavior = 7 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehaviorOrBuilder
+        getFillBehaviorOrBuilder() {
+      return getFillBehavior();
+    }
+
+    public static final int DEFAULT_VALUE_FIELD_NUMBER = 9;
+    private com.google.protobuf.Value defaultValue_;
+    /**
+     *
+     *
+     * <pre>
+     * The default value of an optional parameter. If the parameter is required,
+     * the default value will be ignored.
+     * </pre>
+     *
+     * <code>.google.protobuf.Value default_value = 9;</code>
+     *
+     * @return Whether the defaultValue field is set.
+     */
+    @java.lang.Override
+    public boolean hasDefaultValue() {
+      return defaultValue_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The default value of an optional parameter. If the parameter is required,
+     * the default value will be ignored.
+     * </pre>
+     *
+     * <code>.google.protobuf.Value default_value = 9;</code>
+     *
+     * @return The defaultValue.
+     */
+    @java.lang.Override
+    public com.google.protobuf.Value getDefaultValue() {
+      return defaultValue_ == null ? com.google.protobuf.Value.getDefaultInstance() : defaultValue_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The default value of an optional parameter. If the parameter is required,
+     * the default value will be ignored.
+     * </pre>
+     *
+     * <code>.google.protobuf.Value default_value = 9;</code>
+     */
+    @java.lang.Override
+    public com.google.protobuf.ValueOrBuilder getDefaultValueOrBuilder() {
+      return getDefaultValue();
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (!getDisplayNameBytes().isEmpty()) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, displayName_);
+      }
+      if (required_ != false) {
+        output.writeBool(2, required_);
+      }
+      if (!getEntityTypeBytes().isEmpty()) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 3, entityType_);
+      }
+      if (isList_ != false) {
+        output.writeBool(4, isList_);
+      }
+      if (fillBehavior_ != null) {
+        output.writeMessage(7, getFillBehavior());
+      }
+      if (defaultValue_ != null) {
+        output.writeMessage(9, getDefaultValue());
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (!getDisplayNameBytes().isEmpty()) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, displayName_);
+      }
+      if (required_ != false) {
+        size += com.google.protobuf.CodedOutputStream.computeBoolSize(2, required_);
+      }
+      if (!getEntityTypeBytes().isEmpty()) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, entityType_);
+      }
+      if (isList_ != false) {
+        size += com.google.protobuf.CodedOutputStream.computeBoolSize(4, isList_);
+      }
+      if (fillBehavior_ != null) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(7, getFillBehavior());
+      }
+      if (defaultValue_ != null) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(9, getDefaultValue());
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter other =
+          (com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter) obj;
+
+      if (!getDisplayName().equals(other.getDisplayName())) return false;
+      if (getRequired() != other.getRequired()) return false;
+      if (!getEntityType().equals(other.getEntityType())) return false;
+      if (getIsList() != other.getIsList()) return false;
+      if (hasFillBehavior() != other.hasFillBehavior()) return false;
+      if (hasFillBehavior()) {
+        if (!getFillBehavior().equals(other.getFillBehavior())) return false;
+      }
+      if (hasDefaultValue() != other.hasDefaultValue()) return false;
+      if (hasDefaultValue()) {
+        if (!getDefaultValue().equals(other.getDefaultValue())) return false;
+      }
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + DISPLAY_NAME_FIELD_NUMBER;
+      hash = (53 * hash) + getDisplayName().hashCode();
+      hash = (37 * hash) + REQUIRED_FIELD_NUMBER;
+      hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getRequired());
+      hash = (37 * hash) + ENTITY_TYPE_FIELD_NUMBER;
+      hash = (53 * hash) + getEntityType().hashCode();
+      hash = (37 * hash) + IS_LIST_FIELD_NUMBER;
+      hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getIsList());
+      if (hasFillBehavior()) {
+        hash = (37 * hash) + FILL_BEHAVIOR_FIELD_NUMBER;
+        hash = (53 * hash) + getFillBehavior().hashCode();
+      }
+      if (hasDefaultValue()) {
+        hash = (37 * hash) + DEFAULT_VALUE_FIELD_NUMBER;
+        hash = (53 * hash) + getDefaultValue().hashCode();
+      }
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter parseDelimitedFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter parseDelimitedFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents a form parameter.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Form.Parameter}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.Form.Parameter)
+        com.google.cloud.dialogflow.cx.v3beta1.Form.ParameterOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Form_Parameter_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Form_Parameter_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.class,
+                com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.Builder.class);
+      }
+
+      // Construct using com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        displayName_ = "";
+
+        required_ = false;
+
+        entityType_ = "";
+
+        isList_ = false;
+
+        if (fillBehaviorBuilder_ == null) {
+          fillBehavior_ = null;
+        } else {
+          fillBehavior_ = null;
+          fillBehaviorBuilder_ = null;
+        }
+        if (defaultValueBuilder_ == null) {
+          defaultValue_ = null;
+        } else {
+          defaultValue_ = null;
+          defaultValueBuilder_ = null;
+        }
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Form_Parameter_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter build() {
+        com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter buildPartial() {
+        com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter result =
+            new com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter(this);
+        result.displayName_ = displayName_;
+        result.required_ = required_;
+        result.entityType_ = entityType_;
+        result.isList_ = isList_;
+        if (fillBehaviorBuilder_ == null) {
+          result.fillBehavior_ = fillBehavior_;
+        } else {
+          result.fillBehavior_ = fillBehaviorBuilder_.build();
+        }
+        if (defaultValueBuilder_ == null) {
+          result.defaultValue_ = defaultValue_;
+        } else {
+          result.defaultValue_ = defaultValueBuilder_.build();
+        }
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter) {
+          return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter other) {
+        if (other == com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.getDefaultInstance())
+          return this;
+        if (!other.getDisplayName().isEmpty()) {
+          displayName_ = other.displayName_;
+          onChanged();
+        }
+        if (other.getRequired() != false) {
+          setRequired(other.getRequired());
+        }
+        if (!other.getEntityType().isEmpty()) {
+          entityType_ = other.entityType_;
+          onChanged();
+        }
+        if (other.getIsList() != false) {
+          setIsList(other.getIsList());
+        }
+        if (other.hasFillBehavior()) {
+          mergeFillBehavior(other.getFillBehavior());
+        }
+        if (other.hasDefaultValue()) {
+          mergeDefaultValue(other.getDefaultValue());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter) e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private java.lang.Object displayName_ = "";
+      /**
+       *
+       *
+       * <pre>
+       * Required. The human-readable name of the parameter, unique within the
+       * form.
+       * </pre>
+       *
+       * <code>string display_name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return The displayName.
+       */
+      public java.lang.String getDisplayName() {
+        java.lang.Object ref = displayName_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          displayName_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The human-readable name of the parameter, unique within the
+       * form.
+       * </pre>
+       *
+       * <code>string display_name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return The bytes for displayName.
+       */
+      public com.google.protobuf.ByteString getDisplayNameBytes() {
+        java.lang.Object ref = displayName_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          displayName_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The human-readable name of the parameter, unique within the
+       * form.
+       * </pre>
+       *
+       * <code>string display_name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param value The displayName to set.
+       * @return This builder for chaining.
+       */
+      public Builder setDisplayName(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+
+        displayName_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The human-readable name of the parameter, unique within the
+       * form.
+       * </pre>
+       *
+       * <code>string display_name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearDisplayName() {
+
+        displayName_ = getDefaultInstance().getDisplayName();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The human-readable name of the parameter, unique within the
+       * form.
+       * </pre>
+       *
+       * <code>string display_name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param value The bytes for displayName to set.
+       * @return This builder for chaining.
+       */
+      public Builder setDisplayNameBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+
+        displayName_ = value;
+        onChanged();
+        return this;
+      }
+
+      private boolean required_;
+      /**
+       *
+       *
+       * <pre>
+       * Indicates whether the parameter is required. Optional parameters will not
+       * trigger prompts; however, they are filled if the user specifies them.
+       * Required parameters must be filled before form filling concludes.
+       * </pre>
+       *
+       * <code>bool required = 2;</code>
+       *
+       * @return The required.
+       */
+      @java.lang.Override
+      public boolean getRequired() {
+        return required_;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Indicates whether the parameter is required. Optional parameters will not
+       * trigger prompts; however, they are filled if the user specifies them.
+       * Required parameters must be filled before form filling concludes.
+       * </pre>
+       *
+       * <code>bool required = 2;</code>
+       *
+       * @param value The required to set.
+       * @return This builder for chaining.
+       */
+      public Builder setRequired(boolean value) {
+
+        required_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Indicates whether the parameter is required. Optional parameters will not
+       * trigger prompts; however, they are filled if the user specifies them.
+       * Required parameters must be filled before form filling concludes.
+       * </pre>
+       *
+       * <code>bool required = 2;</code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearRequired() {
+
+        required_ = false;
+        onChanged();
+        return this;
+      }
+
+      private java.lang.Object entityType_ = "";
+      /**
+       *
+       *
+       * <pre>
+       * Required. The entity type of the parameter.
+       * Format: `projects/-/locations/-/agents/-/entityTypes/&lt;System Entity Type
+       * ID&gt;` for system entity types (for example,
+       * `projects/-/locations/-/agents/-/entityTypes/sys.date`), or
+       * `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+       * ID&gt;/entityTypes/&lt;Entity Type ID&gt;` for developer entity types.
+       * </pre>
+       *
+       * <code>
+       * string entity_type = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+       * </code>
+       *
+       * @return The entityType.
+       */
+      public java.lang.String getEntityType() {
+        java.lang.Object ref = entityType_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          entityType_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The entity type of the parameter.
+       * Format: `projects/-/locations/-/agents/-/entityTypes/&lt;System Entity Type
+       * ID&gt;` for system entity types (for example,
+       * `projects/-/locations/-/agents/-/entityTypes/sys.date`), or
+       * `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+       * ID&gt;/entityTypes/&lt;Entity Type ID&gt;` for developer entity types.
+       * </pre>
+       *
+       * <code>
+       * string entity_type = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+       * </code>
+       *
+       * @return The bytes for entityType.
+       */
+      public com.google.protobuf.ByteString getEntityTypeBytes() {
+        java.lang.Object ref = entityType_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          entityType_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The entity type of the parameter.
+       * Format: `projects/-/locations/-/agents/-/entityTypes/&lt;System Entity Type
+       * ID&gt;` for system entity types (for example,
+       * `projects/-/locations/-/agents/-/entityTypes/sys.date`), or
+       * `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+       * ID&gt;/entityTypes/&lt;Entity Type ID&gt;` for developer entity types.
+       * </pre>
+       *
+       * <code>
+       * string entity_type = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+       * </code>
+       *
+       * @param value The entityType to set.
+       * @return This builder for chaining.
+       */
+      public Builder setEntityType(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+
+        entityType_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The entity type of the parameter.
+       * Format: `projects/-/locations/-/agents/-/entityTypes/&lt;System Entity Type
+       * ID&gt;` for system entity types (for example,
+       * `projects/-/locations/-/agents/-/entityTypes/sys.date`), or
+       * `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+       * ID&gt;/entityTypes/&lt;Entity Type ID&gt;` for developer entity types.
+       * </pre>
+       *
+       * <code>
+       * string entity_type = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+       * </code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearEntityType() {
+
+        entityType_ = getDefaultInstance().getEntityType();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The entity type of the parameter.
+       * Format: `projects/-/locations/-/agents/-/entityTypes/&lt;System Entity Type
+       * ID&gt;` for system entity types (for example,
+       * `projects/-/locations/-/agents/-/entityTypes/sys.date`), or
+       * `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+       * ID&gt;/entityTypes/&lt;Entity Type ID&gt;` for developer entity types.
+       * </pre>
+       *
+       * <code>
+       * string entity_type = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+       * </code>
+       *
+       * @param value The bytes for entityType to set.
+       * @return This builder for chaining.
+       */
+      public Builder setEntityTypeBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+
+        entityType_ = value;
+        onChanged();
+        return this;
+      }
+
+      private boolean isList_;
+      /**
+       *
+       *
+       * <pre>
+       * Indicates whether the parameter represents a list of values.
+       * </pre>
+       *
+       * <code>bool is_list = 4;</code>
+       *
+       * @return The isList.
+       */
+      @java.lang.Override
+      public boolean getIsList() {
+        return isList_;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Indicates whether the parameter represents a list of values.
+       * </pre>
+       *
+       * <code>bool is_list = 4;</code>
+       *
+       * @param value The isList to set.
+       * @return This builder for chaining.
+       */
+      public Builder setIsList(boolean value) {
+
+        isList_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Indicates whether the parameter represents a list of values.
+       * </pre>
+       *
+       * <code>bool is_list = 4;</code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearIsList() {
+
+        isList_ = false;
+        onChanged();
+        return this;
+      }
+
+      private com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior fillBehavior_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior,
+              com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior.Builder,
+              com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehaviorOrBuilder>
+          fillBehaviorBuilder_;
+      /**
+       *
+       *
+       * <pre>
+       * Required. Defines fill behavior for the parameter.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior fill_behavior = 7 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       *
+       * @return Whether the fillBehavior field is set.
+       */
+      public boolean hasFillBehavior() {
+        return fillBehaviorBuilder_ != null || fillBehavior_ != null;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. Defines fill behavior for the parameter.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior fill_behavior = 7 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       *
+       * @return The fillBehavior.
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior getFillBehavior() {
+        if (fillBehaviorBuilder_ == null) {
+          return fillBehavior_ == null
+              ? com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior
+                  .getDefaultInstance()
+              : fillBehavior_;
+        } else {
+          return fillBehaviorBuilder_.getMessage();
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. Defines fill behavior for the parameter.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior fill_behavior = 7 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public Builder setFillBehavior(
+          com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior value) {
+        if (fillBehaviorBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          fillBehavior_ = value;
+          onChanged();
+        } else {
+          fillBehaviorBuilder_.setMessage(value);
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. Defines fill behavior for the parameter.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior fill_behavior = 7 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public Builder setFillBehavior(
+          com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior.Builder
+              builderForValue) {
+        if (fillBehaviorBuilder_ == null) {
+          fillBehavior_ = builderForValue.build();
+          onChanged();
+        } else {
+          fillBehaviorBuilder_.setMessage(builderForValue.build());
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. Defines fill behavior for the parameter.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior fill_behavior = 7 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public Builder mergeFillBehavior(
+          com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior value) {
+        if (fillBehaviorBuilder_ == null) {
+          if (fillBehavior_ != null) {
+            fillBehavior_ =
+                com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior.newBuilder(
+                        fillBehavior_)
+                    .mergeFrom(value)
+                    .buildPartial();
+          } else {
+            fillBehavior_ = value;
+          }
+          onChanged();
+        } else {
+          fillBehaviorBuilder_.mergeFrom(value);
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. Defines fill behavior for the parameter.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior fill_behavior = 7 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public Builder clearFillBehavior() {
+        if (fillBehaviorBuilder_ == null) {
+          fillBehavior_ = null;
+          onChanged();
+        } else {
+          fillBehavior_ = null;
+          fillBehaviorBuilder_ = null;
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. Defines fill behavior for the parameter.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior fill_behavior = 7 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior.Builder
+          getFillBehaviorBuilder() {
+
+        onChanged();
+        return getFillBehaviorFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. Defines fill behavior for the parameter.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior fill_behavior = 7 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehaviorOrBuilder
+          getFillBehaviorOrBuilder() {
+        if (fillBehaviorBuilder_ != null) {
+          return fillBehaviorBuilder_.getMessageOrBuilder();
+        } else {
+          return fillBehavior_ == null
+              ? com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior
+                  .getDefaultInstance()
+              : fillBehavior_;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. Defines fill behavior for the parameter.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior fill_behavior = 7 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior,
+              com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior.Builder,
+              com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehaviorOrBuilder>
+          getFillBehaviorFieldBuilder() {
+        if (fillBehaviorBuilder_ == null) {
+          fillBehaviorBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior,
+                  com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehavior.Builder,
+                  com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.FillBehaviorOrBuilder>(
+                  getFillBehavior(), getParentForChildren(), isClean());
+          fillBehavior_ = null;
+        }
+        return fillBehaviorBuilder_;
+      }
+
+      private com.google.protobuf.Value defaultValue_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.protobuf.Value,
+              com.google.protobuf.Value.Builder,
+              com.google.protobuf.ValueOrBuilder>
+          defaultValueBuilder_;
+      /**
+       *
+       *
+       * <pre>
+       * The default value of an optional parameter. If the parameter is required,
+       * the default value will be ignored.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value default_value = 9;</code>
+       *
+       * @return Whether the defaultValue field is set.
+       */
+      public boolean hasDefaultValue() {
+        return defaultValueBuilder_ != null || defaultValue_ != null;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The default value of an optional parameter. If the parameter is required,
+       * the default value will be ignored.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value default_value = 9;</code>
+       *
+       * @return The defaultValue.
+       */
+      public com.google.protobuf.Value getDefaultValue() {
+        if (defaultValueBuilder_ == null) {
+          return defaultValue_ == null
+              ? com.google.protobuf.Value.getDefaultInstance()
+              : defaultValue_;
+        } else {
+          return defaultValueBuilder_.getMessage();
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The default value of an optional parameter. If the parameter is required,
+       * the default value will be ignored.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value default_value = 9;</code>
+       */
+      public Builder setDefaultValue(com.google.protobuf.Value value) {
+        if (defaultValueBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          defaultValue_ = value;
+          onChanged();
+        } else {
+          defaultValueBuilder_.setMessage(value);
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The default value of an optional parameter. If the parameter is required,
+       * the default value will be ignored.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value default_value = 9;</code>
+       */
+      public Builder setDefaultValue(com.google.protobuf.Value.Builder builderForValue) {
+        if (defaultValueBuilder_ == null) {
+          defaultValue_ = builderForValue.build();
+          onChanged();
+        } else {
+          defaultValueBuilder_.setMessage(builderForValue.build());
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The default value of an optional parameter. If the parameter is required,
+       * the default value will be ignored.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value default_value = 9;</code>
+       */
+      public Builder mergeDefaultValue(com.google.protobuf.Value value) {
+        if (defaultValueBuilder_ == null) {
+          if (defaultValue_ != null) {
+            defaultValue_ =
+                com.google.protobuf.Value.newBuilder(defaultValue_).mergeFrom(value).buildPartial();
+          } else {
+            defaultValue_ = value;
+          }
+          onChanged();
+        } else {
+          defaultValueBuilder_.mergeFrom(value);
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The default value of an optional parameter. If the parameter is required,
+       * the default value will be ignored.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value default_value = 9;</code>
+       */
+      public Builder clearDefaultValue() {
+        if (defaultValueBuilder_ == null) {
+          defaultValue_ = null;
+          onChanged();
+        } else {
+          defaultValue_ = null;
+          defaultValueBuilder_ = null;
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The default value of an optional parameter. If the parameter is required,
+       * the default value will be ignored.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value default_value = 9;</code>
+       */
+      public com.google.protobuf.Value.Builder getDefaultValueBuilder() {
+
+        onChanged();
+        return getDefaultValueFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The default value of an optional parameter. If the parameter is required,
+       * the default value will be ignored.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value default_value = 9;</code>
+       */
+      public com.google.protobuf.ValueOrBuilder getDefaultValueOrBuilder() {
+        if (defaultValueBuilder_ != null) {
+          return defaultValueBuilder_.getMessageOrBuilder();
+        } else {
+          return defaultValue_ == null
+              ? com.google.protobuf.Value.getDefaultInstance()
+              : defaultValue_;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The default value of an optional parameter. If the parameter is required,
+       * the default value will be ignored.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value default_value = 9;</code>
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.protobuf.Value,
+              com.google.protobuf.Value.Builder,
+              com.google.protobuf.ValueOrBuilder>
+          getDefaultValueFieldBuilder() {
+        if (defaultValueBuilder_ == null) {
+          defaultValueBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.protobuf.Value,
+                  com.google.protobuf.Value.Builder,
+                  com.google.protobuf.ValueOrBuilder>(
+                  getDefaultValue(), getParentForChildren(), isClean());
+          defaultValue_ = null;
+        }
+        return defaultValueBuilder_;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.Form.Parameter)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.Form.Parameter)
+    private static final com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter();
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<Parameter> PARSER =
+        new com.google.protobuf.AbstractParser<Parameter>() {
+          @java.lang.Override
+          public Parameter parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new Parameter(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser<Parameter> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<Parameter> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public static final int PARAMETERS_FIELD_NUMBER = 1;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter> parameters_;
+  /**
+   *
+   *
+   * <pre>
+   * Parameters to collect from the user.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter> getParametersList() {
+    return parameters_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Parameters to collect from the user.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.Form.ParameterOrBuilder>
+      getParametersOrBuilderList() {
+    return parameters_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Parameters to collect from the user.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+   */
+  @java.lang.Override
+  public int getParametersCount() {
+    return parameters_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Parameters to collect from the user.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter getParameters(int index) {
+    return parameters_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Parameters to collect from the user.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Form.ParameterOrBuilder getParametersOrBuilder(
+      int index) {
+    return parameters_.get(index);
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    for (int i = 0; i < parameters_.size(); i++) {
+      output.writeMessage(1, parameters_.get(i));
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    for (int i = 0; i < parameters_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, parameters_.get(i));
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.Form)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.Form other =
+        (com.google.cloud.dialogflow.cx.v3beta1.Form) obj;
+
+    if (!getParametersList().equals(other.getParametersList())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (getParametersCount() > 0) {
+      hash = (37 * hash) + PARAMETERS_FIELD_NUMBER;
+      hash = (53 * hash) + getParametersList().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Form parseFrom(java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Form parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Form parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Form parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Form parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Form parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Form parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Form parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Form parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Form parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Form parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Form parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.cx.v3beta1.Form prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A form is a data model that groups related parameters that can be collected
+   * from the user. The process in which the agent prompts the user and collects
+   * parameter values from the user is called form filling. A form can be added to
+   * a [page][google.cloud.dialogflow.cx.v3beta1.Page]. When form filling is done, the filled parameters will be
+   * written to the [session][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Form}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.Form)
+      com.google.cloud.dialogflow.cx.v3beta1.FormOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Form_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Form_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.Form.class,
+              com.google.cloud.dialogflow.cx.v3beta1.Form.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.Form.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getParametersFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (parametersBuilder_ == null) {
+        parameters_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        parametersBuilder_.clear();
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Form_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Form getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.Form.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Form build() {
+      com.google.cloud.dialogflow.cx.v3beta1.Form result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Form buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.Form result =
+          new com.google.cloud.dialogflow.cx.v3beta1.Form(this);
+      int from_bitField0_ = bitField0_;
+      if (parametersBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          parameters_ = java.util.Collections.unmodifiableList(parameters_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.parameters_ = parameters_;
+      } else {
+        result.parameters_ = parametersBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.Form) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.Form) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.Form other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.Form.getDefaultInstance()) return this;
+      if (parametersBuilder_ == null) {
+        if (!other.parameters_.isEmpty()) {
+          if (parameters_.isEmpty()) {
+            parameters_ = other.parameters_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureParametersIsMutable();
+            parameters_.addAll(other.parameters_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.parameters_.isEmpty()) {
+          if (parametersBuilder_.isEmpty()) {
+            parametersBuilder_.dispose();
+            parametersBuilder_ = null;
+            parameters_ = other.parameters_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            parametersBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getParametersFieldBuilder()
+                    : null;
+          } else {
+            parametersBuilder_.addAllMessages(other.parameters_);
+          }
+        }
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.Form parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.dialogflow.cx.v3beta1.Form) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter> parameters_ =
+        java.util.Collections.emptyList();
+
+    private void ensureParametersIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        parameters_ =
+            new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter>(
+                parameters_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter,
+            com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.Form.ParameterOrBuilder>
+        parametersBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * Parameters to collect from the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter>
+        getParametersList() {
+      if (parametersBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(parameters_);
+      } else {
+        return parametersBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Parameters to collect from the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+     */
+    public int getParametersCount() {
+      if (parametersBuilder_ == null) {
+        return parameters_.size();
+      } else {
+        return parametersBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Parameters to collect from the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter getParameters(int index) {
+      if (parametersBuilder_ == null) {
+        return parameters_.get(index);
+      } else {
+        return parametersBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Parameters to collect from the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+     */
+    public Builder setParameters(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter value) {
+      if (parametersBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureParametersIsMutable();
+        parameters_.set(index, value);
+        onChanged();
+      } else {
+        parametersBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Parameters to collect from the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+     */
+    public Builder setParameters(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.Builder builderForValue) {
+      if (parametersBuilder_ == null) {
+        ensureParametersIsMutable();
+        parameters_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        parametersBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Parameters to collect from the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+     */
+    public Builder addParameters(com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter value) {
+      if (parametersBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureParametersIsMutable();
+        parameters_.add(value);
+        onChanged();
+      } else {
+        parametersBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Parameters to collect from the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+     */
+    public Builder addParameters(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter value) {
+      if (parametersBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureParametersIsMutable();
+        parameters_.add(index, value);
+        onChanged();
+      } else {
+        parametersBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Parameters to collect from the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+     */
+    public Builder addParameters(
+        com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.Builder builderForValue) {
+      if (parametersBuilder_ == null) {
+        ensureParametersIsMutable();
+        parameters_.add(builderForValue.build());
+        onChanged();
+      } else {
+        parametersBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Parameters to collect from the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+     */
+    public Builder addParameters(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.Builder builderForValue) {
+      if (parametersBuilder_ == null) {
+        ensureParametersIsMutable();
+        parameters_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        parametersBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Parameters to collect from the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+     */
+    public Builder addAllParameters(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter>
+            values) {
+      if (parametersBuilder_ == null) {
+        ensureParametersIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, parameters_);
+        onChanged();
+      } else {
+        parametersBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Parameters to collect from the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+     */
+    public Builder clearParameters() {
+      if (parametersBuilder_ == null) {
+        parameters_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        parametersBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Parameters to collect from the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+     */
+    public Builder removeParameters(int index) {
+      if (parametersBuilder_ == null) {
+        ensureParametersIsMutable();
+        parameters_.remove(index);
+        onChanged();
+      } else {
+        parametersBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Parameters to collect from the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.Builder getParametersBuilder(
+        int index) {
+      return getParametersFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Parameters to collect from the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Form.ParameterOrBuilder getParametersOrBuilder(
+        int index) {
+      if (parametersBuilder_ == null) {
+        return parameters_.get(index);
+      } else {
+        return parametersBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Parameters to collect from the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+     */
+    public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.Form.ParameterOrBuilder>
+        getParametersOrBuilderList() {
+      if (parametersBuilder_ != null) {
+        return parametersBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(parameters_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Parameters to collect from the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.Builder addParametersBuilder() {
+      return getParametersFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Parameters to collect from the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.Builder addParametersBuilder(
+        int index) {
+      return getParametersFieldBuilder()
+          .addBuilder(
+              index, com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Parameters to collect from the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.Builder>
+        getParametersBuilderList() {
+      return getParametersFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter,
+            com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.Form.ParameterOrBuilder>
+        getParametersFieldBuilder() {
+      if (parametersBuilder_ == null) {
+        parametersBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter,
+                com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.Form.ParameterOrBuilder>(
+                parameters_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+        parameters_ = null;
+      }
+      return parametersBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.Form)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.Form)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.Form DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.Form();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Form getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<Form> PARSER =
+      new com.google.protobuf.AbstractParser<Form>() {
+        @java.lang.Override
+        public Form parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new Form(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<Form> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<Form> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Form getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FormOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FormOrBuilder.java
new file mode 100644
index 000000000..de3516d56
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FormOrBuilder.java
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/page.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface FormOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.Form)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Parameters to collect from the user.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter> getParametersList();
+  /**
+   *
+   *
+   * <pre>
+   * Parameters to collect from the user.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Form.Parameter getParameters(int index);
+  /**
+   *
+   *
+   * <pre>
+   * Parameters to collect from the user.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+   */
+  int getParametersCount();
+  /**
+   *
+   *
+   * <pre>
+   * Parameters to collect from the user.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.Form.ParameterOrBuilder>
+      getParametersOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * Parameters to collect from the user.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Form.Parameter parameters = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Form.ParameterOrBuilder getParametersOrBuilder(int index);
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FulfillIntentRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FulfillIntentRequest.java
new file mode 100644
index 000000000..9b03940cd
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FulfillIntentRequest.java
@@ -0,0 +1,1316 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Request of [FulfillIntent][]
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest}
+ */
+public final class FulfillIntentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest)
+    FulfillIntentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use FulfillIntentRequest.newBuilder() to construct.
+  private FulfillIntentRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private FulfillIntentRequest() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new FulfillIntentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private FulfillIntentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest.Builder subBuilder = null;
+              if (matchIntentRequest_ != null) {
+                subBuilder = matchIntentRequest_.toBuilder();
+              }
+              matchIntentRequest_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(matchIntentRequest_);
+                matchIntentRequest_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 18:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Match.Builder subBuilder = null;
+              if (match_ != null) {
+                subBuilder = match_.toBuilder();
+              }
+              match_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Match.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(match_);
+                match_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 26:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder subBuilder = null;
+              if (outputAudioConfig_ != null) {
+                subBuilder = outputAudioConfig_.toBuilder();
+              }
+              outputAudioConfig_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(outputAudioConfig_);
+                outputAudioConfig_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_FulfillIntentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_FulfillIntentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest.Builder.class);
+  }
+
+  public static final int MATCH_INTENT_REQUEST_FIELD_NUMBER = 1;
+  private com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest matchIntentRequest_;
+  /**
+   *
+   *
+   * <pre>
+   * Must be same as the corresponding MatchIntent request, otherwise the
+   * behavior is undefined.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest match_intent_request = 1;</code>
+   *
+   * @return Whether the matchIntentRequest field is set.
+   */
+  @java.lang.Override
+  public boolean hasMatchIntentRequest() {
+    return matchIntentRequest_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Must be same as the corresponding MatchIntent request, otherwise the
+   * behavior is undefined.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest match_intent_request = 1;</code>
+   *
+   * @return The matchIntentRequest.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest getMatchIntentRequest() {
+    return matchIntentRequest_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest.getDefaultInstance()
+        : matchIntentRequest_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Must be same as the corresponding MatchIntent request, otherwise the
+   * behavior is undefined.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest match_intent_request = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequestOrBuilder
+      getMatchIntentRequestOrBuilder() {
+    return getMatchIntentRequest();
+  }
+
+  public static final int MATCH_FIELD_NUMBER = 2;
+  private com.google.cloud.dialogflow.cx.v3beta1.Match match_;
+  /**
+   *
+   *
+   * <pre>
+   * The matched intent/event to fulfill.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 2;</code>
+   *
+   * @return Whether the match field is set.
+   */
+  @java.lang.Override
+  public boolean hasMatch() {
+    return match_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The matched intent/event to fulfill.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 2;</code>
+   *
+   * @return The match.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Match getMatch() {
+    return match_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.Match.getDefaultInstance()
+        : match_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The matched intent/event to fulfill.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.MatchOrBuilder getMatchOrBuilder() {
+    return getMatch();
+  }
+
+  public static final int OUTPUT_AUDIO_CONFIG_FIELD_NUMBER = 3;
+  private com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig outputAudioConfig_;
+  /**
+   *
+   *
+   * <pre>
+   * Instructs the speech synthesizer how to generate output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 3;</code>
+   *
+   * @return Whether the outputAudioConfig field is set.
+   */
+  @java.lang.Override
+  public boolean hasOutputAudioConfig() {
+    return outputAudioConfig_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Instructs the speech synthesizer how to generate output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 3;</code>
+   *
+   * @return The outputAudioConfig.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig getOutputAudioConfig() {
+    return outputAudioConfig_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.getDefaultInstance()
+        : outputAudioConfig_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Instructs the speech synthesizer how to generate output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 3;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder
+      getOutputAudioConfigOrBuilder() {
+    return getOutputAudioConfig();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (matchIntentRequest_ != null) {
+      output.writeMessage(1, getMatchIntentRequest());
+    }
+    if (match_ != null) {
+      output.writeMessage(2, getMatch());
+    }
+    if (outputAudioConfig_ != null) {
+      output.writeMessage(3, getOutputAudioConfig());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (matchIntentRequest_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getMatchIntentRequest());
+    }
+    if (match_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getMatch());
+    }
+    if (outputAudioConfig_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getOutputAudioConfig());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest) obj;
+
+    if (hasMatchIntentRequest() != other.hasMatchIntentRequest()) return false;
+    if (hasMatchIntentRequest()) {
+      if (!getMatchIntentRequest().equals(other.getMatchIntentRequest())) return false;
+    }
+    if (hasMatch() != other.hasMatch()) return false;
+    if (hasMatch()) {
+      if (!getMatch().equals(other.getMatch())) return false;
+    }
+    if (hasOutputAudioConfig() != other.hasOutputAudioConfig()) return false;
+    if (hasOutputAudioConfig()) {
+      if (!getOutputAudioConfig().equals(other.getOutputAudioConfig())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasMatchIntentRequest()) {
+      hash = (37 * hash) + MATCH_INTENT_REQUEST_FIELD_NUMBER;
+      hash = (53 * hash) + getMatchIntentRequest().hashCode();
+    }
+    if (hasMatch()) {
+      hash = (37 * hash) + MATCH_FIELD_NUMBER;
+      hash = (53 * hash) + getMatch().hashCode();
+    }
+    if (hasOutputAudioConfig()) {
+      hash = (37 * hash) + OUTPUT_AUDIO_CONFIG_FIELD_NUMBER;
+      hash = (53 * hash) + getOutputAudioConfig().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Request of [FulfillIntent][]
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_FulfillIntentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_FulfillIntentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (matchIntentRequestBuilder_ == null) {
+        matchIntentRequest_ = null;
+      } else {
+        matchIntentRequest_ = null;
+        matchIntentRequestBuilder_ = null;
+      }
+      if (matchBuilder_ == null) {
+        match_ = null;
+      } else {
+        match_ = null;
+        matchBuilder_ = null;
+      }
+      if (outputAudioConfigBuilder_ == null) {
+        outputAudioConfig_ = null;
+      } else {
+        outputAudioConfig_ = null;
+        outputAudioConfigBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_FulfillIntentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest(this);
+      if (matchIntentRequestBuilder_ == null) {
+        result.matchIntentRequest_ = matchIntentRequest_;
+      } else {
+        result.matchIntentRequest_ = matchIntentRequestBuilder_.build();
+      }
+      if (matchBuilder_ == null) {
+        result.match_ = match_;
+      } else {
+        result.match_ = matchBuilder_.build();
+      }
+      if (outputAudioConfigBuilder_ == null) {
+        result.outputAudioConfig_ = outputAudioConfig_;
+      } else {
+        result.outputAudioConfig_ = outputAudioConfigBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest.getDefaultInstance())
+        return this;
+      if (other.hasMatchIntentRequest()) {
+        mergeMatchIntentRequest(other.getMatchIntentRequest());
+      }
+      if (other.hasMatch()) {
+        mergeMatch(other.getMatch());
+      }
+      if (other.hasOutputAudioConfig()) {
+        mergeOutputAudioConfig(other.getOutputAudioConfig());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest matchIntentRequest_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequestOrBuilder>
+        matchIntentRequestBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Must be same as the corresponding MatchIntent request, otherwise the
+     * behavior is undefined.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest match_intent_request = 1;</code>
+     *
+     * @return Whether the matchIntentRequest field is set.
+     */
+    public boolean hasMatchIntentRequest() {
+      return matchIntentRequestBuilder_ != null || matchIntentRequest_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Must be same as the corresponding MatchIntent request, otherwise the
+     * behavior is undefined.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest match_intent_request = 1;</code>
+     *
+     * @return The matchIntentRequest.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest getMatchIntentRequest() {
+      if (matchIntentRequestBuilder_ == null) {
+        return matchIntentRequest_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest.getDefaultInstance()
+            : matchIntentRequest_;
+      } else {
+        return matchIntentRequestBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Must be same as the corresponding MatchIntent request, otherwise the
+     * behavior is undefined.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest match_intent_request = 1;</code>
+     */
+    public Builder setMatchIntentRequest(
+        com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest value) {
+      if (matchIntentRequestBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        matchIntentRequest_ = value;
+        onChanged();
+      } else {
+        matchIntentRequestBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Must be same as the corresponding MatchIntent request, otherwise the
+     * behavior is undefined.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest match_intent_request = 1;</code>
+     */
+    public Builder setMatchIntentRequest(
+        com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest.Builder builderForValue) {
+      if (matchIntentRequestBuilder_ == null) {
+        matchIntentRequest_ = builderForValue.build();
+        onChanged();
+      } else {
+        matchIntentRequestBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Must be same as the corresponding MatchIntent request, otherwise the
+     * behavior is undefined.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest match_intent_request = 1;</code>
+     */
+    public Builder mergeMatchIntentRequest(
+        com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest value) {
+      if (matchIntentRequestBuilder_ == null) {
+        if (matchIntentRequest_ != null) {
+          matchIntentRequest_ =
+              com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest.newBuilder(
+                      matchIntentRequest_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          matchIntentRequest_ = value;
+        }
+        onChanged();
+      } else {
+        matchIntentRequestBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Must be same as the corresponding MatchIntent request, otherwise the
+     * behavior is undefined.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest match_intent_request = 1;</code>
+     */
+    public Builder clearMatchIntentRequest() {
+      if (matchIntentRequestBuilder_ == null) {
+        matchIntentRequest_ = null;
+        onChanged();
+      } else {
+        matchIntentRequest_ = null;
+        matchIntentRequestBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Must be same as the corresponding MatchIntent request, otherwise the
+     * behavior is undefined.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest match_intent_request = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest.Builder
+        getMatchIntentRequestBuilder() {
+
+      onChanged();
+      return getMatchIntentRequestFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Must be same as the corresponding MatchIntent request, otherwise the
+     * behavior is undefined.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest match_intent_request = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequestOrBuilder
+        getMatchIntentRequestOrBuilder() {
+      if (matchIntentRequestBuilder_ != null) {
+        return matchIntentRequestBuilder_.getMessageOrBuilder();
+      } else {
+        return matchIntentRequest_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest.getDefaultInstance()
+            : matchIntentRequest_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Must be same as the corresponding MatchIntent request, otherwise the
+     * behavior is undefined.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest match_intent_request = 1;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest,
+            com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequestOrBuilder>
+        getMatchIntentRequestFieldBuilder() {
+      if (matchIntentRequestBuilder_ == null) {
+        matchIntentRequestBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest,
+                com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequestOrBuilder>(
+                getMatchIntentRequest(), getParentForChildren(), isClean());
+        matchIntentRequest_ = null;
+      }
+      return matchIntentRequestBuilder_;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Match match_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Match,
+            com.google.cloud.dialogflow.cx.v3beta1.Match.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.MatchOrBuilder>
+        matchBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The matched intent/event to fulfill.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 2;</code>
+     *
+     * @return Whether the match field is set.
+     */
+    public boolean hasMatch() {
+      return matchBuilder_ != null || match_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The matched intent/event to fulfill.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 2;</code>
+     *
+     * @return The match.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Match getMatch() {
+      if (matchBuilder_ == null) {
+        return match_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Match.getDefaultInstance()
+            : match_;
+      } else {
+        return matchBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The matched intent/event to fulfill.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 2;</code>
+     */
+    public Builder setMatch(com.google.cloud.dialogflow.cx.v3beta1.Match value) {
+      if (matchBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        match_ = value;
+        onChanged();
+      } else {
+        matchBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The matched intent/event to fulfill.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 2;</code>
+     */
+    public Builder setMatch(com.google.cloud.dialogflow.cx.v3beta1.Match.Builder builderForValue) {
+      if (matchBuilder_ == null) {
+        match_ = builderForValue.build();
+        onChanged();
+      } else {
+        matchBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The matched intent/event to fulfill.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 2;</code>
+     */
+    public Builder mergeMatch(com.google.cloud.dialogflow.cx.v3beta1.Match value) {
+      if (matchBuilder_ == null) {
+        if (match_ != null) {
+          match_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Match.newBuilder(match_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          match_ = value;
+        }
+        onChanged();
+      } else {
+        matchBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The matched intent/event to fulfill.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 2;</code>
+     */
+    public Builder clearMatch() {
+      if (matchBuilder_ == null) {
+        match_ = null;
+        onChanged();
+      } else {
+        match_ = null;
+        matchBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The matched intent/event to fulfill.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 2;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Match.Builder getMatchBuilder() {
+
+      onChanged();
+      return getMatchFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The matched intent/event to fulfill.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 2;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.MatchOrBuilder getMatchOrBuilder() {
+      if (matchBuilder_ != null) {
+        return matchBuilder_.getMessageOrBuilder();
+      } else {
+        return match_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Match.getDefaultInstance()
+            : match_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The matched intent/event to fulfill.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 2;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Match,
+            com.google.cloud.dialogflow.cx.v3beta1.Match.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.MatchOrBuilder>
+        getMatchFieldBuilder() {
+      if (matchBuilder_ == null) {
+        matchBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Match,
+                com.google.cloud.dialogflow.cx.v3beta1.Match.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.MatchOrBuilder>(
+                getMatch(), getParentForChildren(), isClean());
+        match_ = null;
+      }
+      return matchBuilder_;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig outputAudioConfig_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig,
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder>
+        outputAudioConfigBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 3;</code>
+     *
+     * @return Whether the outputAudioConfig field is set.
+     */
+    public boolean hasOutputAudioConfig() {
+      return outputAudioConfigBuilder_ != null || outputAudioConfig_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 3;</code>
+     *
+     * @return The outputAudioConfig.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig getOutputAudioConfig() {
+      if (outputAudioConfigBuilder_ == null) {
+        return outputAudioConfig_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.getDefaultInstance()
+            : outputAudioConfig_;
+      } else {
+        return outputAudioConfigBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 3;</code>
+     */
+    public Builder setOutputAudioConfig(
+        com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig value) {
+      if (outputAudioConfigBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        outputAudioConfig_ = value;
+        onChanged();
+      } else {
+        outputAudioConfigBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 3;</code>
+     */
+    public Builder setOutputAudioConfig(
+        com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder builderForValue) {
+      if (outputAudioConfigBuilder_ == null) {
+        outputAudioConfig_ = builderForValue.build();
+        onChanged();
+      } else {
+        outputAudioConfigBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 3;</code>
+     */
+    public Builder mergeOutputAudioConfig(
+        com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig value) {
+      if (outputAudioConfigBuilder_ == null) {
+        if (outputAudioConfig_ != null) {
+          outputAudioConfig_ =
+              com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.newBuilder(
+                      outputAudioConfig_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          outputAudioConfig_ = value;
+        }
+        onChanged();
+      } else {
+        outputAudioConfigBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 3;</code>
+     */
+    public Builder clearOutputAudioConfig() {
+      if (outputAudioConfigBuilder_ == null) {
+        outputAudioConfig_ = null;
+        onChanged();
+      } else {
+        outputAudioConfig_ = null;
+        outputAudioConfigBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 3;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder
+        getOutputAudioConfigBuilder() {
+
+      onChanged();
+      return getOutputAudioConfigFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 3;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder
+        getOutputAudioConfigOrBuilder() {
+      if (outputAudioConfigBuilder_ != null) {
+        return outputAudioConfigBuilder_.getMessageOrBuilder();
+      } else {
+        return outputAudioConfig_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.getDefaultInstance()
+            : outputAudioConfig_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 3;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig,
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder>
+        getOutputAudioConfigFieldBuilder() {
+      if (outputAudioConfigBuilder_ == null) {
+        outputAudioConfigBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig,
+                com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder>(
+                getOutputAudioConfig(), getParentForChildren(), isClean());
+        outputAudioConfig_ = null;
+      }
+      return outputAudioConfigBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<FulfillIntentRequest> PARSER =
+      new com.google.protobuf.AbstractParser<FulfillIntentRequest>() {
+        @java.lang.Override
+        public FulfillIntentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new FulfillIntentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<FulfillIntentRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<FulfillIntentRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FulfillIntentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FulfillIntentRequestOrBuilder.java
new file mode 100644
index 000000000..14825011d
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FulfillIntentRequestOrBuilder.java
@@ -0,0 +1,134 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface FulfillIntentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.FulfillIntentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Must be same as the corresponding MatchIntent request, otherwise the
+   * behavior is undefined.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest match_intent_request = 1;</code>
+   *
+   * @return Whether the matchIntentRequest field is set.
+   */
+  boolean hasMatchIntentRequest();
+  /**
+   *
+   *
+   * <pre>
+   * Must be same as the corresponding MatchIntent request, otherwise the
+   * behavior is undefined.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest match_intent_request = 1;</code>
+   *
+   * @return The matchIntentRequest.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest getMatchIntentRequest();
+  /**
+   *
+   *
+   * <pre>
+   * Must be same as the corresponding MatchIntent request, otherwise the
+   * behavior is undefined.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest match_intent_request = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequestOrBuilder
+      getMatchIntentRequestOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The matched intent/event to fulfill.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 2;</code>
+   *
+   * @return Whether the match field is set.
+   */
+  boolean hasMatch();
+  /**
+   *
+   *
+   * <pre>
+   * The matched intent/event to fulfill.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 2;</code>
+   *
+   * @return The match.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Match getMatch();
+  /**
+   *
+   *
+   * <pre>
+   * The matched intent/event to fulfill.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 2;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.MatchOrBuilder getMatchOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Instructs the speech synthesizer how to generate output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 3;</code>
+   *
+   * @return Whether the outputAudioConfig field is set.
+   */
+  boolean hasOutputAudioConfig();
+  /**
+   *
+   *
+   * <pre>
+   * Instructs the speech synthesizer how to generate output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 3;</code>
+   *
+   * @return The outputAudioConfig.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig getOutputAudioConfig();
+  /**
+   *
+   *
+   * <pre>
+   * Instructs the speech synthesizer how to generate output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 3;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder getOutputAudioConfigOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FulfillIntentResponse.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FulfillIntentResponse.java
new file mode 100644
index 000000000..e602ce21f
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FulfillIntentResponse.java
@@ -0,0 +1,1341 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Response of [FulfillIntent][]
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse}
+ */
+public final class FulfillIntentResponse extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse)
+    FulfillIntentResponseOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use FulfillIntentResponse.newBuilder() to construct.
+  private FulfillIntentResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private FulfillIntentResponse() {
+    responseId_ = "";
+    outputAudio_ = com.google.protobuf.ByteString.EMPTY;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new FulfillIntentResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private FulfillIntentResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              responseId_ = s;
+              break;
+            }
+          case 18:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.QueryResult.Builder subBuilder = null;
+              if (queryResult_ != null) {
+                subBuilder = queryResult_.toBuilder();
+              }
+              queryResult_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.QueryResult.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(queryResult_);
+                queryResult_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 26:
+            {
+              outputAudio_ = input.readBytes();
+              break;
+            }
+          case 34:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder subBuilder = null;
+              if (outputAudioConfig_ != null) {
+                subBuilder = outputAudioConfig_.toBuilder();
+              }
+              outputAudioConfig_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(outputAudioConfig_);
+                outputAudioConfig_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_FulfillIntentResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_FulfillIntentResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse.class,
+            com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse.Builder.class);
+  }
+
+  public static final int RESPONSE_ID_FIELD_NUMBER = 1;
+  private volatile java.lang.Object responseId_;
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The unique identifier of the response. It can be used to
+   * locate a response in the training example set or for reporting issues.
+   * </pre>
+   *
+   * <code>string response_id = 1;</code>
+   *
+   * @return The responseId.
+   */
+  @java.lang.Override
+  public java.lang.String getResponseId() {
+    java.lang.Object ref = responseId_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      responseId_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The unique identifier of the response. It can be used to
+   * locate a response in the training example set or for reporting issues.
+   * </pre>
+   *
+   * <code>string response_id = 1;</code>
+   *
+   * @return The bytes for responseId.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getResponseIdBytes() {
+    java.lang.Object ref = responseId_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      responseId_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int QUERY_RESULT_FIELD_NUMBER = 2;
+  private com.google.cloud.dialogflow.cx.v3beta1.QueryResult queryResult_;
+  /**
+   *
+   *
+   * <pre>
+   * The result of the conversational query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+   *
+   * @return Whether the queryResult field is set.
+   */
+  @java.lang.Override
+  public boolean hasQueryResult() {
+    return queryResult_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The result of the conversational query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+   *
+   * @return The queryResult.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.QueryResult getQueryResult() {
+    return queryResult_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.QueryResult.getDefaultInstance()
+        : queryResult_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The result of the conversational query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.QueryResultOrBuilder getQueryResultOrBuilder() {
+    return getQueryResult();
+  }
+
+  public static final int OUTPUT_AUDIO_FIELD_NUMBER = 3;
+  private com.google.protobuf.ByteString outputAudio_;
+  /**
+   *
+   *
+   * <pre>
+   * The audio data bytes encoded as specified in the request.
+   * Note: The output audio is generated based on the values of default platform
+   * text responses found in the
+   * [`query_result.response_messages`][google.cloud.dialogflow.cx.v3beta1.QueryResult.response_messages] field. If
+   * multiple default text responses exist, they will be concatenated when
+   * generating audio. If no default platform text responses exist, the
+   * generated audio content will be empty.
+   * In some scenarios, multiple output audio fields may be present in the
+   * response structure. In these cases, only the top-most-level audio output
+   * has content.
+   * </pre>
+   *
+   * <code>bytes output_audio = 3;</code>
+   *
+   * @return The outputAudio.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getOutputAudio() {
+    return outputAudio_;
+  }
+
+  public static final int OUTPUT_AUDIO_CONFIG_FIELD_NUMBER = 4;
+  private com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig outputAudioConfig_;
+  /**
+   *
+   *
+   * <pre>
+   * The config used by the speech synthesizer to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+   *
+   * @return Whether the outputAudioConfig field is set.
+   */
+  @java.lang.Override
+  public boolean hasOutputAudioConfig() {
+    return outputAudioConfig_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The config used by the speech synthesizer to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+   *
+   * @return The outputAudioConfig.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig getOutputAudioConfig() {
+    return outputAudioConfig_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.getDefaultInstance()
+        : outputAudioConfig_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The config used by the speech synthesizer to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder
+      getOutputAudioConfigOrBuilder() {
+    return getOutputAudioConfig();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getResponseIdBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, responseId_);
+    }
+    if (queryResult_ != null) {
+      output.writeMessage(2, getQueryResult());
+    }
+    if (!outputAudio_.isEmpty()) {
+      output.writeBytes(3, outputAudio_);
+    }
+    if (outputAudioConfig_ != null) {
+      output.writeMessage(4, getOutputAudioConfig());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getResponseIdBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, responseId_);
+    }
+    if (queryResult_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getQueryResult());
+    }
+    if (!outputAudio_.isEmpty()) {
+      size += com.google.protobuf.CodedOutputStream.computeBytesSize(3, outputAudio_);
+    }
+    if (outputAudioConfig_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, getOutputAudioConfig());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse other =
+        (com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse) obj;
+
+    if (!getResponseId().equals(other.getResponseId())) return false;
+    if (hasQueryResult() != other.hasQueryResult()) return false;
+    if (hasQueryResult()) {
+      if (!getQueryResult().equals(other.getQueryResult())) return false;
+    }
+    if (!getOutputAudio().equals(other.getOutputAudio())) return false;
+    if (hasOutputAudioConfig() != other.hasOutputAudioConfig()) return false;
+    if (hasOutputAudioConfig()) {
+      if (!getOutputAudioConfig().equals(other.getOutputAudioConfig())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + RESPONSE_ID_FIELD_NUMBER;
+    hash = (53 * hash) + getResponseId().hashCode();
+    if (hasQueryResult()) {
+      hash = (37 * hash) + QUERY_RESULT_FIELD_NUMBER;
+      hash = (53 * hash) + getQueryResult().hashCode();
+    }
+    hash = (37 * hash) + OUTPUT_AUDIO_FIELD_NUMBER;
+    hash = (53 * hash) + getOutputAudio().hashCode();
+    if (hasOutputAudioConfig()) {
+      hash = (37 * hash) + OUTPUT_AUDIO_CONFIG_FIELD_NUMBER;
+      hash = (53 * hash) + getOutputAudioConfig().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Response of [FulfillIntent][]
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse)
+      com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_FulfillIntentResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_FulfillIntentResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse.class,
+              com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      responseId_ = "";
+
+      if (queryResultBuilder_ == null) {
+        queryResult_ = null;
+      } else {
+        queryResult_ = null;
+        queryResultBuilder_ = null;
+      }
+      outputAudio_ = com.google.protobuf.ByteString.EMPTY;
+
+      if (outputAudioConfigBuilder_ == null) {
+        outputAudioConfig_ = null;
+      } else {
+        outputAudioConfig_ = null;
+        outputAudioConfigBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_FulfillIntentResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse build() {
+      com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse result =
+          new com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse(this);
+      result.responseId_ = responseId_;
+      if (queryResultBuilder_ == null) {
+        result.queryResult_ = queryResult_;
+      } else {
+        result.queryResult_ = queryResultBuilder_.build();
+      }
+      result.outputAudio_ = outputAudio_;
+      if (outputAudioConfigBuilder_ == null) {
+        result.outputAudioConfig_ = outputAudioConfig_;
+      } else {
+        result.outputAudioConfig_ = outputAudioConfigBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse.getDefaultInstance())
+        return this;
+      if (!other.getResponseId().isEmpty()) {
+        responseId_ = other.responseId_;
+        onChanged();
+      }
+      if (other.hasQueryResult()) {
+        mergeQueryResult(other.getQueryResult());
+      }
+      if (other.getOutputAudio() != com.google.protobuf.ByteString.EMPTY) {
+        setOutputAudio(other.getOutputAudio());
+      }
+      if (other.hasOutputAudioConfig()) {
+        mergeOutputAudioConfig(other.getOutputAudioConfig());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object responseId_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of the response. It can be used to
+     * locate a response in the training example set or for reporting issues.
+     * </pre>
+     *
+     * <code>string response_id = 1;</code>
+     *
+     * @return The responseId.
+     */
+    public java.lang.String getResponseId() {
+      java.lang.Object ref = responseId_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        responseId_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of the response. It can be used to
+     * locate a response in the training example set or for reporting issues.
+     * </pre>
+     *
+     * <code>string response_id = 1;</code>
+     *
+     * @return The bytes for responseId.
+     */
+    public com.google.protobuf.ByteString getResponseIdBytes() {
+      java.lang.Object ref = responseId_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        responseId_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of the response. It can be used to
+     * locate a response in the training example set or for reporting issues.
+     * </pre>
+     *
+     * <code>string response_id = 1;</code>
+     *
+     * @param value The responseId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setResponseId(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      responseId_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of the response. It can be used to
+     * locate a response in the training example set or for reporting issues.
+     * </pre>
+     *
+     * <code>string response_id = 1;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearResponseId() {
+
+      responseId_ = getDefaultInstance().getResponseId();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of the response. It can be used to
+     * locate a response in the training example set or for reporting issues.
+     * </pre>
+     *
+     * <code>string response_id = 1;</code>
+     *
+     * @param value The bytes for responseId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setResponseIdBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      responseId_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.QueryResult queryResult_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.QueryResult,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryResult.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryResultOrBuilder>
+        queryResultBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The result of the conversational query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+     *
+     * @return Whether the queryResult field is set.
+     */
+    public boolean hasQueryResult() {
+      return queryResultBuilder_ != null || queryResult_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of the conversational query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+     *
+     * @return The queryResult.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryResult getQueryResult() {
+      if (queryResultBuilder_ == null) {
+        return queryResult_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.QueryResult.getDefaultInstance()
+            : queryResult_;
+      } else {
+        return queryResultBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of the conversational query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+     */
+    public Builder setQueryResult(com.google.cloud.dialogflow.cx.v3beta1.QueryResult value) {
+      if (queryResultBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        queryResult_ = value;
+        onChanged();
+      } else {
+        queryResultBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of the conversational query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+     */
+    public Builder setQueryResult(
+        com.google.cloud.dialogflow.cx.v3beta1.QueryResult.Builder builderForValue) {
+      if (queryResultBuilder_ == null) {
+        queryResult_ = builderForValue.build();
+        onChanged();
+      } else {
+        queryResultBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of the conversational query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+     */
+    public Builder mergeQueryResult(com.google.cloud.dialogflow.cx.v3beta1.QueryResult value) {
+      if (queryResultBuilder_ == null) {
+        if (queryResult_ != null) {
+          queryResult_ =
+              com.google.cloud.dialogflow.cx.v3beta1.QueryResult.newBuilder(queryResult_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          queryResult_ = value;
+        }
+        onChanged();
+      } else {
+        queryResultBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of the conversational query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+     */
+    public Builder clearQueryResult() {
+      if (queryResultBuilder_ == null) {
+        queryResult_ = null;
+        onChanged();
+      } else {
+        queryResult_ = null;
+        queryResultBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of the conversational query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryResult.Builder getQueryResultBuilder() {
+
+      onChanged();
+      return getQueryResultFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of the conversational query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryResultOrBuilder getQueryResultOrBuilder() {
+      if (queryResultBuilder_ != null) {
+        return queryResultBuilder_.getMessageOrBuilder();
+      } else {
+        return queryResult_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.QueryResult.getDefaultInstance()
+            : queryResult_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of the conversational query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.QueryResult,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryResult.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryResultOrBuilder>
+        getQueryResultFieldBuilder() {
+      if (queryResultBuilder_ == null) {
+        queryResultBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.QueryResult,
+                com.google.cloud.dialogflow.cx.v3beta1.QueryResult.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.QueryResultOrBuilder>(
+                getQueryResult(), getParentForChildren(), isClean());
+        queryResult_ = null;
+      }
+      return queryResultBuilder_;
+    }
+
+    private com.google.protobuf.ByteString outputAudio_ = com.google.protobuf.ByteString.EMPTY;
+    /**
+     *
+     *
+     * <pre>
+     * The audio data bytes encoded as specified in the request.
+     * Note: The output audio is generated based on the values of default platform
+     * text responses found in the
+     * [`query_result.response_messages`][google.cloud.dialogflow.cx.v3beta1.QueryResult.response_messages] field. If
+     * multiple default text responses exist, they will be concatenated when
+     * generating audio. If no default platform text responses exist, the
+     * generated audio content will be empty.
+     * In some scenarios, multiple output audio fields may be present in the
+     * response structure. In these cases, only the top-most-level audio output
+     * has content.
+     * </pre>
+     *
+     * <code>bytes output_audio = 3;</code>
+     *
+     * @return The outputAudio.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getOutputAudio() {
+      return outputAudio_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The audio data bytes encoded as specified in the request.
+     * Note: The output audio is generated based on the values of default platform
+     * text responses found in the
+     * [`query_result.response_messages`][google.cloud.dialogflow.cx.v3beta1.QueryResult.response_messages] field. If
+     * multiple default text responses exist, they will be concatenated when
+     * generating audio. If no default platform text responses exist, the
+     * generated audio content will be empty.
+     * In some scenarios, multiple output audio fields may be present in the
+     * response structure. In these cases, only the top-most-level audio output
+     * has content.
+     * </pre>
+     *
+     * <code>bytes output_audio = 3;</code>
+     *
+     * @param value The outputAudio to set.
+     * @return This builder for chaining.
+     */
+    public Builder setOutputAudio(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      outputAudio_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The audio data bytes encoded as specified in the request.
+     * Note: The output audio is generated based on the values of default platform
+     * text responses found in the
+     * [`query_result.response_messages`][google.cloud.dialogflow.cx.v3beta1.QueryResult.response_messages] field. If
+     * multiple default text responses exist, they will be concatenated when
+     * generating audio. If no default platform text responses exist, the
+     * generated audio content will be empty.
+     * In some scenarios, multiple output audio fields may be present in the
+     * response structure. In these cases, only the top-most-level audio output
+     * has content.
+     * </pre>
+     *
+     * <code>bytes output_audio = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearOutputAudio() {
+
+      outputAudio_ = getDefaultInstance().getOutputAudio();
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig outputAudioConfig_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig,
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder>
+        outputAudioConfigBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The config used by the speech synthesizer to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     *
+     * @return Whether the outputAudioConfig field is set.
+     */
+    public boolean hasOutputAudioConfig() {
+      return outputAudioConfigBuilder_ != null || outputAudioConfig_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The config used by the speech synthesizer to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     *
+     * @return The outputAudioConfig.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig getOutputAudioConfig() {
+      if (outputAudioConfigBuilder_ == null) {
+        return outputAudioConfig_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.getDefaultInstance()
+            : outputAudioConfig_;
+      } else {
+        return outputAudioConfigBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The config used by the speech synthesizer to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     */
+    public Builder setOutputAudioConfig(
+        com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig value) {
+      if (outputAudioConfigBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        outputAudioConfig_ = value;
+        onChanged();
+      } else {
+        outputAudioConfigBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The config used by the speech synthesizer to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     */
+    public Builder setOutputAudioConfig(
+        com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder builderForValue) {
+      if (outputAudioConfigBuilder_ == null) {
+        outputAudioConfig_ = builderForValue.build();
+        onChanged();
+      } else {
+        outputAudioConfigBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The config used by the speech synthesizer to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     */
+    public Builder mergeOutputAudioConfig(
+        com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig value) {
+      if (outputAudioConfigBuilder_ == null) {
+        if (outputAudioConfig_ != null) {
+          outputAudioConfig_ =
+              com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.newBuilder(
+                      outputAudioConfig_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          outputAudioConfig_ = value;
+        }
+        onChanged();
+      } else {
+        outputAudioConfigBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The config used by the speech synthesizer to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     */
+    public Builder clearOutputAudioConfig() {
+      if (outputAudioConfigBuilder_ == null) {
+        outputAudioConfig_ = null;
+        onChanged();
+      } else {
+        outputAudioConfig_ = null;
+        outputAudioConfigBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The config used by the speech synthesizer to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder
+        getOutputAudioConfigBuilder() {
+
+      onChanged();
+      return getOutputAudioConfigFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The config used by the speech synthesizer to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder
+        getOutputAudioConfigOrBuilder() {
+      if (outputAudioConfigBuilder_ != null) {
+        return outputAudioConfigBuilder_.getMessageOrBuilder();
+      } else {
+        return outputAudioConfig_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.getDefaultInstance()
+            : outputAudioConfig_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The config used by the speech synthesizer to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig,
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder>
+        getOutputAudioConfigFieldBuilder() {
+      if (outputAudioConfigBuilder_ == null) {
+        outputAudioConfigBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig,
+                com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder>(
+                getOutputAudioConfig(), getParentForChildren(), isClean());
+        outputAudioConfig_ = null;
+      }
+      return outputAudioConfigBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<FulfillIntentResponse> PARSER =
+      new com.google.protobuf.AbstractParser<FulfillIntentResponse>() {
+        @java.lang.Override
+        public FulfillIntentResponse parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new FulfillIntentResponse(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<FulfillIntentResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<FulfillIntentResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FulfillIntentResponseOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FulfillIntentResponseOrBuilder.java
new file mode 100644
index 000000000..7c9a92b54
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FulfillIntentResponseOrBuilder.java
@@ -0,0 +1,144 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface FulfillIntentResponseOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.FulfillIntentResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The unique identifier of the response. It can be used to
+   * locate a response in the training example set or for reporting issues.
+   * </pre>
+   *
+   * <code>string response_id = 1;</code>
+   *
+   * @return The responseId.
+   */
+  java.lang.String getResponseId();
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The unique identifier of the response. It can be used to
+   * locate a response in the training example set or for reporting issues.
+   * </pre>
+   *
+   * <code>string response_id = 1;</code>
+   *
+   * @return The bytes for responseId.
+   */
+  com.google.protobuf.ByteString getResponseIdBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The result of the conversational query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+   *
+   * @return Whether the queryResult field is set.
+   */
+  boolean hasQueryResult();
+  /**
+   *
+   *
+   * <pre>
+   * The result of the conversational query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+   *
+   * @return The queryResult.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.QueryResult getQueryResult();
+  /**
+   *
+   *
+   * <pre>
+   * The result of the conversational query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryResult query_result = 2;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.QueryResultOrBuilder getQueryResultOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The audio data bytes encoded as specified in the request.
+   * Note: The output audio is generated based on the values of default platform
+   * text responses found in the
+   * [`query_result.response_messages`][google.cloud.dialogflow.cx.v3beta1.QueryResult.response_messages] field. If
+   * multiple default text responses exist, they will be concatenated when
+   * generating audio. If no default platform text responses exist, the
+   * generated audio content will be empty.
+   * In some scenarios, multiple output audio fields may be present in the
+   * response structure. In these cases, only the top-most-level audio output
+   * has content.
+   * </pre>
+   *
+   * <code>bytes output_audio = 3;</code>
+   *
+   * @return The outputAudio.
+   */
+  com.google.protobuf.ByteString getOutputAudio();
+
+  /**
+   *
+   *
+   * <pre>
+   * The config used by the speech synthesizer to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+   *
+   * @return Whether the outputAudioConfig field is set.
+   */
+  boolean hasOutputAudioConfig();
+  /**
+   *
+   *
+   * <pre>
+   * The config used by the speech synthesizer to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+   *
+   * @return The outputAudioConfig.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig getOutputAudioConfig();
+  /**
+   *
+   *
+   * <pre>
+   * The config used by the speech synthesizer to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder getOutputAudioConfigOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Fulfillment.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Fulfillment.java
new file mode 100644
index 000000000..f45b0543c
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Fulfillment.java
@@ -0,0 +1,7348 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/fulfillment.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * A fulfillment can do one or more of the following actions at the same time:
+ *   * Generate rich message responses.
+ *   * Set parameter values.
+ *   * Call the webhook.
+ * Fulfillments can be called at various stages in the [Page][google.cloud.dialogflow.cx.v3beta1.Page] or
+ * [Form][google.cloud.dialogflow.cx.v3beta1.Form] lifecycle. For example, when a [DetectIntentRequest][google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest] drives a
+ * session to enter a new page, the page's entry fulfillment can add a static
+ * response to the [QueryResult][google.cloud.dialogflow.cx.v3beta1.QueryResult] in the returning [DetectIntentResponse][google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse],
+ * call the webhook (for example, to load user data from a database), or both.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Fulfillment}
+ */
+public final class Fulfillment extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.Fulfillment)
+    FulfillmentOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use Fulfillment.newBuilder() to construct.
+  private Fulfillment(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private Fulfillment() {
+    messages_ = java.util.Collections.emptyList();
+    webhook_ = "";
+    tag_ = "";
+    setParameterActions_ = java.util.Collections.emptyList();
+    conditionalCases_ = java.util.Collections.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new Fulfillment();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private Fulfillment(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                messages_ =
+                    new java.util.ArrayList<
+                        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              messages_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.parser(),
+                      extensionRegistry));
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              webhook_ = s;
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              tag_ = s;
+              break;
+            }
+          case 34:
+            {
+              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
+                setParameterActions_ =
+                    new java.util.ArrayList<
+                        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction>();
+                mutable_bitField0_ |= 0x00000002;
+              }
+              setParameterActions_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction
+                          .parser(),
+                      extensionRegistry));
+              break;
+            }
+          case 42:
+            {
+              if (!((mutable_bitField0_ & 0x00000004) != 0)) {
+                conditionalCases_ =
+                    new java.util.ArrayList<
+                        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases>();
+                mutable_bitField0_ |= 0x00000004;
+              }
+              conditionalCases_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.parser(),
+                      extensionRegistry));
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        messages_ = java.util.Collections.unmodifiableList(messages_);
+      }
+      if (((mutable_bitField0_ & 0x00000002) != 0)) {
+        setParameterActions_ = java.util.Collections.unmodifiableList(setParameterActions_);
+      }
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+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
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+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.class,
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder.class);
+  }
+
+  public interface SetParameterActionOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * <pre>
+     * Display name of the parameter.
+     * </pre>
+     *
+     * <code>string parameter = 1;</code>
+     *
+     * @return The parameter.
+     */
+    java.lang.String getParameter();
+    /**
+     *
+     *
+     * <pre>
+     * Display name of the parameter.
+     * </pre>
+     *
+     * <code>string parameter = 1;</code>
+     *
+     * @return The bytes for parameter.
+     */
+    com.google.protobuf.ByteString getParameterBytes();
+
+    /**
+     *
+     *
+     * <pre>
+     * The new value of the parameter. A null value clears the parameter.
+     * </pre>
+     *
+     * <code>.google.protobuf.Value value = 2;</code>
+     *
+     * @return Whether the value field is set.
+     */
+    boolean hasValue();
+    /**
+     *
+     *
+     * <pre>
+     * The new value of the parameter. A null value clears the parameter.
+     * </pre>
+     *
+     * <code>.google.protobuf.Value value = 2;</code>
+     *
+     * @return The value.
+     */
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+    /**
+     *
+     *
+     * <pre>
+     * The new value of the parameter. A null value clears the parameter.
+     * </pre>
+     *
+     * <code>.google.protobuf.Value value = 2;</code>
+     */
+    com.google.protobuf.ValueOrBuilder getValueOrBuilder();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Setting a parameter value.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction}
+   */
+  public static final class SetParameterAction extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction)
+      SetParameterActionOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use SetParameterAction.newBuilder() to construct.
+    private SetParameterAction(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+
+    private SetParameterAction() {
+      parameter_ = "";
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new SetParameterAction();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private SetParameterAction(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
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+              break;
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+
+                parameter_ = s;
+                break;
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+                if (value_ != null) {
+                  subBuilder = value_.toBuilder();
+                }
+                value_ = input.readMessage(com.google.protobuf.Value.parser(), extensionRegistry);
+                if (subBuilder != null) {
+                  subBuilder.mergeFrom(value_);
+                  value_ = subBuilder.buildPartial();
+                }
+
+                break;
+              }
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+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_SetParameterAction_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_SetParameterAction_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction.class,
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction.Builder.class);
+    }
+
+    public static final int PARAMETER_FIELD_NUMBER = 1;
+    private volatile java.lang.Object parameter_;
+    /**
+     *
+     *
+     * <pre>
+     * Display name of the parameter.
+     * </pre>
+     *
+     * <code>string parameter = 1;</code>
+     *
+     * @return The parameter.
+     */
+    @java.lang.Override
+    public java.lang.String getParameter() {
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+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parameter_ = s;
+        return s;
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+    /**
+     *
+     *
+     * <pre>
+     * Display name of the parameter.
+     * </pre>
+     *
+     * <code>string parameter = 1;</code>
+     *
+     * @return The bytes for parameter.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getParameterBytes() {
+      java.lang.Object ref = parameter_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parameter_ = b;
+        return b;
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+      }
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+    public static final int VALUE_FIELD_NUMBER = 2;
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+    /**
+     *
+     *
+     * <pre>
+     * The new value of the parameter. A null value clears the parameter.
+     * </pre>
+     *
+     * <code>.google.protobuf.Value value = 2;</code>
+     *
+     * @return Whether the value field is set.
+     */
+    @java.lang.Override
+    public boolean hasValue() {
+      return value_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The new value of the parameter. A null value clears the parameter.
+     * </pre>
+     *
+     * <code>.google.protobuf.Value value = 2;</code>
+     *
+     * @return The value.
+     */
+    @java.lang.Override
+    public com.google.protobuf.Value getValue() {
+      return value_ == null ? com.google.protobuf.Value.getDefaultInstance() : value_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The new value of the parameter. A null value clears the parameter.
+     * </pre>
+     *
+     * <code>.google.protobuf.Value value = 2;</code>
+     */
+    @java.lang.Override
+    public com.google.protobuf.ValueOrBuilder getValueOrBuilder() {
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+    }
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+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
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+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
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+      memoizedIsInitialized = 1;
+      return true;
+    }
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+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (!getParameterBytes().isEmpty()) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parameter_);
+      }
+      if (value_ != null) {
+        output.writeMessage(2, getValue());
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+      unknownFields.writeTo(output);
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+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (!getParameterBytes().isEmpty()) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parameter_);
+      }
+      if (value_ != null) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getValue());
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction other =
+          (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction) obj;
+
+      if (!getParameter().equals(other.getParameter())) return false;
+      if (hasValue() != other.hasValue()) return false;
+      if (hasValue()) {
+        if (!getValue().equals(other.getValue())) return false;
+      }
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + PARAMETER_FIELD_NUMBER;
+      hash = (53 * hash) + getParameter().hashCode();
+      if (hasValue()) {
+        hash = (37 * hash) + VALUE_FIELD_NUMBER;
+        hash = (53 * hash) + getValue().hashCode();
+      }
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction parseFrom(
+        byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Setting a parameter value.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction)
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterActionOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_SetParameterAction_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_SetParameterAction_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction.class,
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction.Builder
+                    .class);
+      }
+
+      // Construct using
+      // com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        parameter_ = "";
+
+        if (valueBuilder_ == null) {
+          value_ = null;
+        } else {
+          value_ = null;
+          valueBuilder_ = null;
+        }
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_SetParameterAction_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction
+          getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction
+            .getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction build() {
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction result =
+            buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction buildPartial() {
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction result =
+            new com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction(this);
+        result.parameter_ = parameter_;
+        if (valueBuilder_ == null) {
+          result.value_ = value_;
+        } else {
+          result.value_ = valueBuilder_.build();
+        }
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other
+            instanceof com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction) {
+          return mergeFrom(
+              (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction other) {
+        if (other
+            == com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction
+                .getDefaultInstance()) return this;
+        if (!other.getParameter().isEmpty()) {
+          parameter_ = other.parameter_;
+          onChanged();
+        }
+        if (other.hasValue()) {
+          mergeValue(other.getValue());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction)
+                  e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private java.lang.Object parameter_ = "";
+      /**
+       *
+       *
+       * <pre>
+       * Display name of the parameter.
+       * </pre>
+       *
+       * <code>string parameter = 1;</code>
+       *
+       * @return The parameter.
+       */
+      public java.lang.String getParameter() {
+        java.lang.Object ref = parameter_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          parameter_ = s;
+          return s;
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+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Display name of the parameter.
+       * </pre>
+       *
+       * <code>string parameter = 1;</code>
+       *
+       * @return The bytes for parameter.
+       */
+      public com.google.protobuf.ByteString getParameterBytes() {
+        java.lang.Object ref = parameter_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          parameter_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Display name of the parameter.
+       * </pre>
+       *
+       * <code>string parameter = 1;</code>
+       *
+       * @param value The parameter to set.
+       * @return This builder for chaining.
+       */
+      public Builder setParameter(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+
+        parameter_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Display name of the parameter.
+       * </pre>
+       *
+       * <code>string parameter = 1;</code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearParameter() {
+
+        parameter_ = getDefaultInstance().getParameter();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Display name of the parameter.
+       * </pre>
+       *
+       * <code>string parameter = 1;</code>
+       *
+       * @param value The bytes for parameter to set.
+       * @return This builder for chaining.
+       */
+      public Builder setParameterBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+
+        parameter_ = value;
+        onChanged();
+        return this;
+      }
+
+      private com.google.protobuf.Value value_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.protobuf.Value,
+              com.google.protobuf.Value.Builder,
+              com.google.protobuf.ValueOrBuilder>
+          valueBuilder_;
+      /**
+       *
+       *
+       * <pre>
+       * The new value of the parameter. A null value clears the parameter.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value value = 2;</code>
+       *
+       * @return Whether the value field is set.
+       */
+      public boolean hasValue() {
+        return valueBuilder_ != null || value_ != null;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The new value of the parameter. A null value clears the parameter.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value value = 2;</code>
+       *
+       * @return The value.
+       */
+      public com.google.protobuf.Value getValue() {
+        if (valueBuilder_ == null) {
+          return value_ == null ? com.google.protobuf.Value.getDefaultInstance() : value_;
+        } else {
+          return valueBuilder_.getMessage();
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The new value of the parameter. A null value clears the parameter.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value value = 2;</code>
+       */
+      public Builder setValue(com.google.protobuf.Value value) {
+        if (valueBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          value_ = value;
+          onChanged();
+        } else {
+          valueBuilder_.setMessage(value);
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The new value of the parameter. A null value clears the parameter.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value value = 2;</code>
+       */
+      public Builder setValue(com.google.protobuf.Value.Builder builderForValue) {
+        if (valueBuilder_ == null) {
+          value_ = builderForValue.build();
+          onChanged();
+        } else {
+          valueBuilder_.setMessage(builderForValue.build());
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The new value of the parameter. A null value clears the parameter.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value value = 2;</code>
+       */
+      public Builder mergeValue(com.google.protobuf.Value value) {
+        if (valueBuilder_ == null) {
+          if (value_ != null) {
+            value_ = com.google.protobuf.Value.newBuilder(value_).mergeFrom(value).buildPartial();
+          } else {
+            value_ = value;
+          }
+          onChanged();
+        } else {
+          valueBuilder_.mergeFrom(value);
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The new value of the parameter. A null value clears the parameter.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value value = 2;</code>
+       */
+      public Builder clearValue() {
+        if (valueBuilder_ == null) {
+          value_ = null;
+          onChanged();
+        } else {
+          value_ = null;
+          valueBuilder_ = null;
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The new value of the parameter. A null value clears the parameter.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value value = 2;</code>
+       */
+      public com.google.protobuf.Value.Builder getValueBuilder() {
+
+        onChanged();
+        return getValueFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The new value of the parameter. A null value clears the parameter.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value value = 2;</code>
+       */
+      public com.google.protobuf.ValueOrBuilder getValueOrBuilder() {
+        if (valueBuilder_ != null) {
+          return valueBuilder_.getMessageOrBuilder();
+        } else {
+          return value_ == null ? com.google.protobuf.Value.getDefaultInstance() : value_;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The new value of the parameter. A null value clears the parameter.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value value = 2;</code>
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.protobuf.Value,
+              com.google.protobuf.Value.Builder,
+              com.google.protobuf.ValueOrBuilder>
+          getValueFieldBuilder() {
+        if (valueBuilder_ == null) {
+          valueBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.protobuf.Value,
+                  com.google.protobuf.Value.Builder,
+                  com.google.protobuf.ValueOrBuilder>(
+                  getValue(), getParentForChildren(), isClean());
+          value_ = null;
+        }
+        return valueBuilder_;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction)
+    private static final com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE =
+          new com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction();
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<SetParameterAction> PARSER =
+        new com.google.protobuf.AbstractParser<SetParameterAction>() {
+          @java.lang.Override
+          public SetParameterAction parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new SetParameterAction(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser<SetParameterAction> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<SetParameterAction> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public interface ConditionalCasesOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * <pre>
+     * A list of cascading if-else conditions.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+     * </code>
+     */
+    java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case>
+        getCasesList();
+    /**
+     *
+     *
+     * <pre>
+     * A list of cascading if-else conditions.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+     * </code>
+     */
+    com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case getCases(int index);
+    /**
+     *
+     *
+     * <pre>
+     * A list of cascading if-else conditions.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+     * </code>
+     */
+    int getCasesCount();
+    /**
+     *
+     *
+     * <pre>
+     * A list of cascading if-else conditions.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+     * </code>
+     */
+    java.util.List<
+            ? extends
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.CaseOrBuilder>
+        getCasesOrBuilderList();
+    /**
+     *
+     *
+     * <pre>
+     * A list of cascading if-else conditions.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+     * </code>
+     */
+    com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.CaseOrBuilder
+        getCasesOrBuilder(int index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A list of cascading if-else conditions. Cases are mutually exclusive.
+   * The first one with a matching condition is selected, all the rest ignored.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases}
+   */
+  public static final class ConditionalCases extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases)
+      ConditionalCasesOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use ConditionalCases.newBuilder() to construct.
+    private ConditionalCases(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+
+    private ConditionalCases() {
+      cases_ = java.util.Collections.emptyList();
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new ConditionalCases();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private ConditionalCases(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      int mutable_bitField0_ = 0;
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                  cases_ =
+                      new java.util.ArrayList<
+                          com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+                              .Case>();
+                  mutable_bitField0_ |= 0x00000001;
+                }
+                cases_.add(
+                    input.readMessage(
+                        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                            .parser(),
+                        extensionRegistry));
+                break;
+              }
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        if (((mutable_bitField0_ & 0x00000001) != 0)) {
+          cases_ = java.util.Collections.unmodifiableList(cases_);
+        }
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.class,
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Builder.class);
+    }
+
+    public interface CaseOrBuilder
+        extends
+        // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case)
+        com.google.protobuf.MessageOrBuilder {
+
+      /**
+       *
+       *
+       * <pre>
+       * The condition to activate and select this case. Empty means the
+       * condition is always true. The condition is evaluated against [form
+       * parameters][Form.parameters] or [session
+       * parameters][SessionInfo.parameters].
+       * See the [conditions
+       * reference](https://cloud.google.com/dialogflow/cx/docs/reference/condition).
+       * </pre>
+       *
+       * <code>string condition = 1;</code>
+       *
+       * @return The condition.
+       */
+      java.lang.String getCondition();
+      /**
+       *
+       *
+       * <pre>
+       * The condition to activate and select this case. Empty means the
+       * condition is always true. The condition is evaluated against [form
+       * parameters][Form.parameters] or [session
+       * parameters][SessionInfo.parameters].
+       * See the [conditions
+       * reference](https://cloud.google.com/dialogflow/cx/docs/reference/condition).
+       * </pre>
+       *
+       * <code>string condition = 1;</code>
+       *
+       * @return The bytes for condition.
+       */
+      com.google.protobuf.ByteString getConditionBytes();
+
+      /**
+       *
+       *
+       * <pre>
+       * A list of case content.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+       * </code>
+       */
+      java.util.List<
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent>
+          getCaseContentList();
+      /**
+       *
+       *
+       * <pre>
+       * A list of case content.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+       * </code>
+       */
+      com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+          getCaseContent(int index);
+      /**
+       *
+       *
+       * <pre>
+       * A list of case content.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+       * </code>
+       */
+      int getCaseContentCount();
+      /**
+       *
+       *
+       * <pre>
+       * A list of case content.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+       * </code>
+       */
+      java.util.List<
+              ? extends
+                  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                      .CaseContentOrBuilder>
+          getCaseContentOrBuilderList();
+      /**
+       *
+       *
+       * <pre>
+       * A list of case content.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+       * </code>
+       */
+      com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContentOrBuilder
+          getCaseContentOrBuilder(int index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Each case has a Boolean condition. When it is evaluated to be True, the
+     * corresponding messages will be selected and evaluated recursively.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case}
+     */
+    public static final class Case extends com.google.protobuf.GeneratedMessageV3
+        implements
+        // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case)
+        CaseOrBuilder {
+      private static final long serialVersionUID = 0L;
+      // Use Case.newBuilder() to construct.
+      private Case(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+        super(builder);
+      }
+
+      private Case() {
+        condition_ = "";
+        caseContent_ = java.util.Collections.emptyList();
+      }
+
+      @java.lang.Override
+      @SuppressWarnings({"unused"})
+      protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+        return new Case();
+      }
+
+      @java.lang.Override
+      public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+        return this.unknownFields;
+      }
+
+      private Case(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        this();
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
+        int mutable_bitField0_ = 0;
+        com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+            com.google.protobuf.UnknownFieldSet.newBuilder();
+        try {
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  java.lang.String s = input.readStringRequireUtf8();
+
+                  condition_ = s;
+                  break;
+                }
+              case 18:
+                {
+                  if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                    caseContent_ =
+                        new java.util.ArrayList<
+                            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                                .CaseContent>();
+                    mutable_bitField0_ |= 0x00000001;
+                  }
+                  caseContent_.add(
+                      input.readMessage(
+                          com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                              .CaseContent.parser(),
+                          extensionRegistry));
+                  break;
+                }
+              default:
+                {
+                  if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                    done = true;
+                  }
+                  break;
+                }
+            }
+          }
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(this);
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(this);
+        } finally {
+          if (((mutable_bitField0_ & 0x00000001) != 0)) {
+            caseContent_ = java.util.Collections.unmodifiableList(caseContent_);
+          }
+          this.unknownFields = unknownFields.build();
+          makeExtensionsImmutable();
+        }
+      }
+
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_Case_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_Case_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.class,
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.Builder
+                    .class);
+      }
+
+      public interface CaseContentOrBuilder
+          extends
+          // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent)
+          com.google.protobuf.MessageOrBuilder {
+
+        /**
+         *
+         *
+         * <pre>
+         * Returned message.
+         * </pre>
+         *
+         * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage message = 1;</code>
+         *
+         * @return Whether the message field is set.
+         */
+        boolean hasMessage();
+        /**
+         *
+         *
+         * <pre>
+         * Returned message.
+         * </pre>
+         *
+         * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage message = 1;</code>
+         *
+         * @return The message.
+         */
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage getMessage();
+        /**
+         *
+         *
+         * <pre>
+         * Returned message.
+         * </pre>
+         *
+         * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage message = 1;</code>
+         */
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder getMessageOrBuilder();
+
+        /**
+         *
+         *
+         * <pre>
+         * Additional cases to be evaluated.
+         * </pre>
+         *
+         * <code>
+         * .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases additional_cases = 2;
+         * </code>
+         *
+         * @return Whether the additionalCases field is set.
+         */
+        boolean hasAdditionalCases();
+        /**
+         *
+         *
+         * <pre>
+         * Additional cases to be evaluated.
+         * </pre>
+         *
+         * <code>
+         * .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases additional_cases = 2;
+         * </code>
+         *
+         * @return The additionalCases.
+         */
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases getAdditionalCases();
+        /**
+         *
+         *
+         * <pre>
+         * Additional cases to be evaluated.
+         * </pre>
+         *
+         * <code>
+         * .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases additional_cases = 2;
+         * </code>
+         */
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCasesOrBuilder
+            getAdditionalCasesOrBuilder();
+
+        public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+                .CasesOrMessageCase
+            getCasesOrMessageCase();
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The list of messages or conditional cases to activate for this case.
+       * </pre>
+       *
+       * Protobuf type {@code
+       * google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent}
+       */
+      public static final class CaseContent extends com.google.protobuf.GeneratedMessageV3
+          implements
+          // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent)
+          CaseContentOrBuilder {
+        private static final long serialVersionUID = 0L;
+        // Use CaseContent.newBuilder() to construct.
+        private CaseContent(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+          super(builder);
+        }
+
+        private CaseContent() {}
+
+        @java.lang.Override
+        @SuppressWarnings({"unused"})
+        protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+          return new CaseContent();
+        }
+
+        @java.lang.Override
+        public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+          return this.unknownFields;
+        }
+
+        private CaseContent(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          this();
+          if (extensionRegistry == null) {
+            throw new java.lang.NullPointerException();
+          }
+          com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+              com.google.protobuf.UnknownFieldSet.newBuilder();
+          try {
+            boolean done = false;
+            while (!done) {
+              int tag = input.readTag();
+              switch (tag) {
+                case 0:
+                  done = true;
+                  break;
+                case 10:
+                  {
+                    com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder subBuilder =
+                        null;
+                    if (casesOrMessageCase_ == 1) {
+                      subBuilder =
+                          ((com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage) casesOrMessage_)
+                              .toBuilder();
+                    }
+                    casesOrMessage_ =
+                        input.readMessage(
+                            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.parser(),
+                            extensionRegistry);
+                    if (subBuilder != null) {
+                      subBuilder.mergeFrom(
+                          (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage) casesOrMessage_);
+                      casesOrMessage_ = subBuilder.buildPartial();
+                    }
+                    casesOrMessageCase_ = 1;
+                    break;
+                  }
+                case 18:
+                  {
+                    com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Builder
+                        subBuilder = null;
+                    if (casesOrMessageCase_ == 2) {
+                      subBuilder =
+                          ((com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases)
+                                  casesOrMessage_)
+                              .toBuilder();
+                    }
+                    casesOrMessage_ =
+                        input.readMessage(
+                            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+                                .parser(),
+                            extensionRegistry);
+                    if (subBuilder != null) {
+                      subBuilder.mergeFrom(
+                          (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases)
+                              casesOrMessage_);
+                      casesOrMessage_ = subBuilder.buildPartial();
+                    }
+                    casesOrMessageCase_ = 2;
+                    break;
+                  }
+                default:
+                  {
+                    if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                      done = true;
+                    }
+                    break;
+                  }
+              }
+            }
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(this);
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(this);
+          } finally {
+            this.unknownFields = unknownFields.build();
+            makeExtensionsImmutable();
+          }
+        }
+
+        public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+          return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+              .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_Case_CaseContent_descriptor;
+        }
+
+        @java.lang.Override
+        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+            internalGetFieldAccessorTable() {
+          return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+              .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_Case_CaseContent_fieldAccessorTable
+              .ensureFieldAccessorsInitialized(
+                  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                      .CaseContent.class,
+                  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                      .CaseContent.Builder.class);
+        }
+
+        private int casesOrMessageCase_ = 0;
+        private java.lang.Object casesOrMessage_;
+
+        public enum CasesOrMessageCase
+            implements
+                com.google.protobuf.Internal.EnumLite,
+                com.google.protobuf.AbstractMessage.InternalOneOfEnum {
+          MESSAGE(1),
+          ADDITIONAL_CASES(2),
+          CASESORMESSAGE_NOT_SET(0);
+          private final int value;
+
+          private CasesOrMessageCase(int value) {
+            this.value = value;
+          }
+          /**
+           * @param value The number of the enum to look for.
+           * @return The enum associated with the given number.
+           * @deprecated Use {@link #forNumber(int)} instead.
+           */
+          @java.lang.Deprecated
+          public static CasesOrMessageCase valueOf(int value) {
+            return forNumber(value);
+          }
+
+          public static CasesOrMessageCase forNumber(int value) {
+            switch (value) {
+              case 1:
+                return MESSAGE;
+              case 2:
+                return ADDITIONAL_CASES;
+              case 0:
+                return CASESORMESSAGE_NOT_SET;
+              default:
+                return null;
+            }
+          }
+
+          public int getNumber() {
+            return this.value;
+          }
+        };
+
+        public CasesOrMessageCase getCasesOrMessageCase() {
+          return CasesOrMessageCase.forNumber(casesOrMessageCase_);
+        }
+
+        public static final int MESSAGE_FIELD_NUMBER = 1;
+        /**
+         *
+         *
+         * <pre>
+         * Returned message.
+         * </pre>
+         *
+         * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage message = 1;</code>
+         *
+         * @return Whether the message field is set.
+         */
+        @java.lang.Override
+        public boolean hasMessage() {
+          return casesOrMessageCase_ == 1;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Returned message.
+         * </pre>
+         *
+         * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage message = 1;</code>
+         *
+         * @return The message.
+         */
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage getMessage() {
+          if (casesOrMessageCase_ == 1) {
+            return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage) casesOrMessage_;
+          }
+          return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.getDefaultInstance();
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Returned message.
+         * </pre>
+         *
+         * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage message = 1;</code>
+         */
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder
+            getMessageOrBuilder() {
+          if (casesOrMessageCase_ == 1) {
+            return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage) casesOrMessage_;
+          }
+          return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.getDefaultInstance();
+        }
+
+        public static final int ADDITIONAL_CASES_FIELD_NUMBER = 2;
+        /**
+         *
+         *
+         * <pre>
+         * Additional cases to be evaluated.
+         * </pre>
+         *
+         * <code>
+         * .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases additional_cases = 2;
+         * </code>
+         *
+         * @return Whether the additionalCases field is set.
+         */
+        @java.lang.Override
+        public boolean hasAdditionalCases() {
+          return casesOrMessageCase_ == 2;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Additional cases to be evaluated.
+         * </pre>
+         *
+         * <code>
+         * .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases additional_cases = 2;
+         * </code>
+         *
+         * @return The additionalCases.
+         */
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+            getAdditionalCases() {
+          if (casesOrMessageCase_ == 2) {
+            return (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases)
+                casesOrMessage_;
+          }
+          return com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+              .getDefaultInstance();
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Additional cases to be evaluated.
+         * </pre>
+         *
+         * <code>
+         * .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases additional_cases = 2;
+         * </code>
+         */
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCasesOrBuilder
+            getAdditionalCasesOrBuilder() {
+          if (casesOrMessageCase_ == 2) {
+            return (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases)
+                casesOrMessage_;
+          }
+          return com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+              .getDefaultInstance();
+        }
+
+        private byte memoizedIsInitialized = -1;
+
+        @java.lang.Override
+        public final boolean isInitialized() {
+          byte isInitialized = memoizedIsInitialized;
+          if (isInitialized == 1) return true;
+          if (isInitialized == 0) return false;
+
+          memoizedIsInitialized = 1;
+          return true;
+        }
+
+        @java.lang.Override
+        public void writeTo(com.google.protobuf.CodedOutputStream output)
+            throws java.io.IOException {
+          if (casesOrMessageCase_ == 1) {
+            output.writeMessage(
+                1, (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage) casesOrMessage_);
+          }
+          if (casesOrMessageCase_ == 2) {
+            output.writeMessage(
+                2,
+                (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases)
+                    casesOrMessage_);
+          }
+          unknownFields.writeTo(output);
+        }
+
+        @java.lang.Override
+        public int getSerializedSize() {
+          int size = memoizedSize;
+          if (size != -1) return size;
+
+          size = 0;
+          if (casesOrMessageCase_ == 1) {
+            size +=
+                com.google.protobuf.CodedOutputStream.computeMessageSize(
+                    1, (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage) casesOrMessage_);
+          }
+          if (casesOrMessageCase_ == 2) {
+            size +=
+                com.google.protobuf.CodedOutputStream.computeMessageSize(
+                    2,
+                    (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases)
+                        casesOrMessage_);
+          }
+          size += unknownFields.getSerializedSize();
+          memoizedSize = size;
+          return size;
+        }
+
+        @java.lang.Override
+        public boolean equals(final java.lang.Object obj) {
+          if (obj == this) {
+            return true;
+          }
+          if (!(obj
+              instanceof
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                  .CaseContent)) {
+            return super.equals(obj);
+          }
+          com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+              other =
+                  (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                          .CaseContent)
+                      obj;
+
+          if (!getCasesOrMessageCase().equals(other.getCasesOrMessageCase())) return false;
+          switch (casesOrMessageCase_) {
+            case 1:
+              if (!getMessage().equals(other.getMessage())) return false;
+              break;
+            case 2:
+              if (!getAdditionalCases().equals(other.getAdditionalCases())) return false;
+              break;
+            case 0:
+            default:
+          }
+          if (!unknownFields.equals(other.unknownFields)) return false;
+          return true;
+        }
+
+        @java.lang.Override
+        public int hashCode() {
+          if (memoizedHashCode != 0) {
+            return memoizedHashCode;
+          }
+          int hash = 41;
+          hash = (19 * hash) + getDescriptor().hashCode();
+          switch (casesOrMessageCase_) {
+            case 1:
+              hash = (37 * hash) + MESSAGE_FIELD_NUMBER;
+              hash = (53 * hash) + getMessage().hashCode();
+              break;
+            case 2:
+              hash = (37 * hash) + ADDITIONAL_CASES_FIELD_NUMBER;
+              hash = (53 * hash) + getAdditionalCases().hashCode();
+              break;
+            case 0:
+            default:
+          }
+          hash = (29 * hash) + unknownFields.hashCode();
+          memoizedHashCode = hash;
+          return hash;
+        }
+
+        public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                .CaseContent
+            parseFrom(java.nio.ByteBuffer data)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+          return PARSER.parseFrom(data);
+        }
+
+        public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                .CaseContent
+            parseFrom(
+                java.nio.ByteBuffer data,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+          return PARSER.parseFrom(data, extensionRegistry);
+        }
+
+        public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                .CaseContent
+            parseFrom(com.google.protobuf.ByteString data)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+          return PARSER.parseFrom(data);
+        }
+
+        public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                .CaseContent
+            parseFrom(
+                com.google.protobuf.ByteString data,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+          return PARSER.parseFrom(data, extensionRegistry);
+        }
+
+        public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                .CaseContent
+            parseFrom(byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+          return PARSER.parseFrom(data);
+        }
+
+        public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                .CaseContent
+            parseFrom(byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+          return PARSER.parseFrom(data, extensionRegistry);
+        }
+
+        public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                .CaseContent
+            parseFrom(java.io.InputStream input) throws java.io.IOException {
+          return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+        }
+
+        public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                .CaseContent
+            parseFrom(
+                java.io.InputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws java.io.IOException {
+          return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+              PARSER, input, extensionRegistry);
+        }
+
+        public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                .CaseContent
+            parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+          return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+              PARSER, input);
+        }
+
+        public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                .CaseContent
+            parseDelimitedFrom(
+                java.io.InputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws java.io.IOException {
+          return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+              PARSER, input, extensionRegistry);
+        }
+
+        public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                .CaseContent
+            parseFrom(com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+          return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+        }
+
+        public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                .CaseContent
+            parseFrom(
+                com.google.protobuf.CodedInputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws java.io.IOException {
+          return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+              PARSER, input, extensionRegistry);
+        }
+
+        @java.lang.Override
+        public Builder newBuilderForType() {
+          return newBuilder();
+        }
+
+        public static Builder newBuilder() {
+          return DEFAULT_INSTANCE.toBuilder();
+        }
+
+        public static Builder newBuilder(
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+                prototype) {
+          return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+        }
+
+        @java.lang.Override
+        public Builder toBuilder() {
+          return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+        }
+
+        @java.lang.Override
+        protected Builder newBuilderForType(
+            com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+          Builder builder = new Builder(parent);
+          return builder;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The list of messages or conditional cases to activate for this case.
+         * </pre>
+         *
+         * Protobuf type {@code
+         * google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent}
+         */
+        public static final class Builder
+            extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+            implements
+            // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent)
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                .CaseContentOrBuilder {
+          public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+            return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+                .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_Case_CaseContent_descriptor;
+          }
+
+          @java.lang.Override
+          protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+              internalGetFieldAccessorTable() {
+            return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+                .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_Case_CaseContent_fieldAccessorTable
+                .ensureFieldAccessorsInitialized(
+                    com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                        .CaseContent.class,
+                    com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                        .CaseContent.Builder.class);
+          }
+
+          // Construct using
+          // com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent.newBuilder()
+          private Builder() {
+            maybeForceBuilderInitialization();
+          }
+
+          private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+            super(parent);
+            maybeForceBuilderInitialization();
+          }
+
+          private void maybeForceBuilderInitialization() {
+            if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+          }
+
+          @java.lang.Override
+          public Builder clear() {
+            super.clear();
+            casesOrMessageCase_ = 0;
+            casesOrMessage_ = null;
+            return this;
+          }
+
+          @java.lang.Override
+          public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+            return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+                .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_Case_CaseContent_descriptor;
+          }
+
+          @java.lang.Override
+          public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                  .CaseContent
+              getDefaultInstanceForType() {
+            return com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                .CaseContent.getDefaultInstance();
+          }
+
+          @java.lang.Override
+          public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                  .CaseContent
+              build() {
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+                result = buildPartial();
+            if (!result.isInitialized()) {
+              throw newUninitializedMessageException(result);
+            }
+            return result;
+          }
+
+          @java.lang.Override
+          public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                  .CaseContent
+              buildPartial() {
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+                result =
+                    new com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                        .CaseContent(this);
+            if (casesOrMessageCase_ == 1) {
+              if (messageBuilder_ == null) {
+                result.casesOrMessage_ = casesOrMessage_;
+              } else {
+                result.casesOrMessage_ = messageBuilder_.build();
+              }
+            }
+            if (casesOrMessageCase_ == 2) {
+              if (additionalCasesBuilder_ == null) {
+                result.casesOrMessage_ = casesOrMessage_;
+              } else {
+                result.casesOrMessage_ = additionalCasesBuilder_.build();
+              }
+            }
+            result.casesOrMessageCase_ = casesOrMessageCase_;
+            onBuilt();
+            return result;
+          }
+
+          @java.lang.Override
+          public Builder clone() {
+            return super.clone();
+          }
+
+          @java.lang.Override
+          public Builder setField(
+              com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+            return super.setField(field, value);
+          }
+
+          @java.lang.Override
+          public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+            return super.clearField(field);
+          }
+
+          @java.lang.Override
+          public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+            return super.clearOneof(oneof);
+          }
+
+          @java.lang.Override
+          public Builder setRepeatedField(
+              com.google.protobuf.Descriptors.FieldDescriptor field,
+              int index,
+              java.lang.Object value) {
+            return super.setRepeatedField(field, index, value);
+          }
+
+          @java.lang.Override
+          public Builder addRepeatedField(
+              com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+            return super.addRepeatedField(field, value);
+          }
+
+          @java.lang.Override
+          public Builder mergeFrom(com.google.protobuf.Message other) {
+            if (other
+                instanceof
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                    .CaseContent) {
+              return mergeFrom(
+                  (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                          .CaseContent)
+                      other);
+            } else {
+              super.mergeFrom(other);
+              return this;
+            }
+          }
+
+          public Builder mergeFrom(
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+                  other) {
+            if (other
+                == com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                    .CaseContent.getDefaultInstance()) return this;
+            switch (other.getCasesOrMessageCase()) {
+              case MESSAGE:
+                {
+                  mergeMessage(other.getMessage());
+                  break;
+                }
+              case ADDITIONAL_CASES:
+                {
+                  mergeAdditionalCases(other.getAdditionalCases());
+                  break;
+                }
+              case CASESORMESSAGE_NOT_SET:
+                {
+                  break;
+                }
+            }
+            this.mergeUnknownFields(other.unknownFields);
+            onChanged();
+            return this;
+          }
+
+          @java.lang.Override
+          public final boolean isInitialized() {
+            return true;
+          }
+
+          @java.lang.Override
+          public Builder mergeFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+                parsedMessage = null;
+            try {
+              parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              parsedMessage =
+                  (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                          .CaseContent)
+                      e.getUnfinishedMessage();
+              throw e.unwrapIOException();
+            } finally {
+              if (parsedMessage != null) {
+                mergeFrom(parsedMessage);
+              }
+            }
+            return this;
+          }
+
+          private int casesOrMessageCase_ = 0;
+          private java.lang.Object casesOrMessage_;
+
+          public CasesOrMessageCase getCasesOrMessageCase() {
+            return CasesOrMessageCase.forNumber(casesOrMessageCase_);
+          }
+
+          public Builder clearCasesOrMessage() {
+            casesOrMessageCase_ = 0;
+            casesOrMessage_ = null;
+            onChanged();
+            return this;
+          }
+
+          private com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage,
+                  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder,
+                  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>
+              messageBuilder_;
+          /**
+           *
+           *
+           * <pre>
+           * Returned message.
+           * </pre>
+           *
+           * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage message = 1;</code>
+           *
+           * @return Whether the message field is set.
+           */
+          @java.lang.Override
+          public boolean hasMessage() {
+            return casesOrMessageCase_ == 1;
+          }
+          /**
+           *
+           *
+           * <pre>
+           * Returned message.
+           * </pre>
+           *
+           * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage message = 1;</code>
+           *
+           * @return The message.
+           */
+          @java.lang.Override
+          public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage getMessage() {
+            if (messageBuilder_ == null) {
+              if (casesOrMessageCase_ == 1) {
+                return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage) casesOrMessage_;
+              }
+              return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.getDefaultInstance();
+            } else {
+              if (casesOrMessageCase_ == 1) {
+                return messageBuilder_.getMessage();
+              }
+              return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.getDefaultInstance();
+            }
+          }
+          /**
+           *
+           *
+           * <pre>
+           * Returned message.
+           * </pre>
+           *
+           * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage message = 1;</code>
+           */
+          public Builder setMessage(com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage value) {
+            if (messageBuilder_ == null) {
+              if (value == null) {
+                throw new NullPointerException();
+              }
+              casesOrMessage_ = value;
+              onChanged();
+            } else {
+              messageBuilder_.setMessage(value);
+            }
+            casesOrMessageCase_ = 1;
+            return this;
+          }
+          /**
+           *
+           *
+           * <pre>
+           * Returned message.
+           * </pre>
+           *
+           * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage message = 1;</code>
+           */
+          public Builder setMessage(
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder builderForValue) {
+            if (messageBuilder_ == null) {
+              casesOrMessage_ = builderForValue.build();
+              onChanged();
+            } else {
+              messageBuilder_.setMessage(builderForValue.build());
+            }
+            casesOrMessageCase_ = 1;
+            return this;
+          }
+          /**
+           *
+           *
+           * <pre>
+           * Returned message.
+           * </pre>
+           *
+           * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage message = 1;</code>
+           */
+          public Builder mergeMessage(
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage value) {
+            if (messageBuilder_ == null) {
+              if (casesOrMessageCase_ == 1
+                  && casesOrMessage_
+                      != com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage
+                          .getDefaultInstance()) {
+                casesOrMessage_ =
+                    com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.newBuilder(
+                            (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage)
+                                casesOrMessage_)
+                        .mergeFrom(value)
+                        .buildPartial();
+              } else {
+                casesOrMessage_ = value;
+              }
+              onChanged();
+            } else {
+              if (casesOrMessageCase_ == 1) {
+                messageBuilder_.mergeFrom(value);
+              }
+              messageBuilder_.setMessage(value);
+            }
+            casesOrMessageCase_ = 1;
+            return this;
+          }
+          /**
+           *
+           *
+           * <pre>
+           * Returned message.
+           * </pre>
+           *
+           * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage message = 1;</code>
+           */
+          public Builder clearMessage() {
+            if (messageBuilder_ == null) {
+              if (casesOrMessageCase_ == 1) {
+                casesOrMessageCase_ = 0;
+                casesOrMessage_ = null;
+                onChanged();
+              }
+            } else {
+              if (casesOrMessageCase_ == 1) {
+                casesOrMessageCase_ = 0;
+                casesOrMessage_ = null;
+              }
+              messageBuilder_.clear();
+            }
+            return this;
+          }
+          /**
+           *
+           *
+           * <pre>
+           * Returned message.
+           * </pre>
+           *
+           * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage message = 1;</code>
+           */
+          public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder
+              getMessageBuilder() {
+            return getMessageFieldBuilder().getBuilder();
+          }
+          /**
+           *
+           *
+           * <pre>
+           * Returned message.
+           * </pre>
+           *
+           * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage message = 1;</code>
+           */
+          @java.lang.Override
+          public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder
+              getMessageOrBuilder() {
+            if ((casesOrMessageCase_ == 1) && (messageBuilder_ != null)) {
+              return messageBuilder_.getMessageOrBuilder();
+            } else {
+              if (casesOrMessageCase_ == 1) {
+                return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage) casesOrMessage_;
+              }
+              return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.getDefaultInstance();
+            }
+          }
+          /**
+           *
+           *
+           * <pre>
+           * Returned message.
+           * </pre>
+           *
+           * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage message = 1;</code>
+           */
+          private com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage,
+                  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder,
+                  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>
+              getMessageFieldBuilder() {
+            if (messageBuilder_ == null) {
+              if (!(casesOrMessageCase_ == 1)) {
+                casesOrMessage_ =
+                    com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.getDefaultInstance();
+              }
+              messageBuilder_ =
+                  new com.google.protobuf.SingleFieldBuilderV3<
+                      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage,
+                      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder,
+                      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>(
+                      (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage) casesOrMessage_,
+                      getParentForChildren(),
+                      isClean());
+              casesOrMessage_ = null;
+            }
+            casesOrMessageCase_ = 1;
+            onChanged();
+            ;
+            return messageBuilder_;
+          }
+
+          private com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases,
+                  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Builder,
+                  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCasesOrBuilder>
+              additionalCasesBuilder_;
+          /**
+           *
+           *
+           * <pre>
+           * Additional cases to be evaluated.
+           * </pre>
+           *
+           * <code>
+           * .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases additional_cases = 2;
+           * </code>
+           *
+           * @return Whether the additionalCases field is set.
+           */
+          @java.lang.Override
+          public boolean hasAdditionalCases() {
+            return casesOrMessageCase_ == 2;
+          }
+          /**
+           *
+           *
+           * <pre>
+           * Additional cases to be evaluated.
+           * </pre>
+           *
+           * <code>
+           * .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases additional_cases = 2;
+           * </code>
+           *
+           * @return The additionalCases.
+           */
+          @java.lang.Override
+          public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+              getAdditionalCases() {
+            if (additionalCasesBuilder_ == null) {
+              if (casesOrMessageCase_ == 2) {
+                return (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases)
+                    casesOrMessage_;
+              }
+              return com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+                  .getDefaultInstance();
+            } else {
+              if (casesOrMessageCase_ == 2) {
+                return additionalCasesBuilder_.getMessage();
+              }
+              return com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+                  .getDefaultInstance();
+            }
+          }
+          /**
+           *
+           *
+           * <pre>
+           * Additional cases to be evaluated.
+           * </pre>
+           *
+           * <code>
+           * .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases additional_cases = 2;
+           * </code>
+           */
+          public Builder setAdditionalCases(
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases value) {
+            if (additionalCasesBuilder_ == null) {
+              if (value == null) {
+                throw new NullPointerException();
+              }
+              casesOrMessage_ = value;
+              onChanged();
+            } else {
+              additionalCasesBuilder_.setMessage(value);
+            }
+            casesOrMessageCase_ = 2;
+            return this;
+          }
+          /**
+           *
+           *
+           * <pre>
+           * Additional cases to be evaluated.
+           * </pre>
+           *
+           * <code>
+           * .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases additional_cases = 2;
+           * </code>
+           */
+          public Builder setAdditionalCases(
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Builder
+                  builderForValue) {
+            if (additionalCasesBuilder_ == null) {
+              casesOrMessage_ = builderForValue.build();
+              onChanged();
+            } else {
+              additionalCasesBuilder_.setMessage(builderForValue.build());
+            }
+            casesOrMessageCase_ = 2;
+            return this;
+          }
+          /**
+           *
+           *
+           * <pre>
+           * Additional cases to be evaluated.
+           * </pre>
+           *
+           * <code>
+           * .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases additional_cases = 2;
+           * </code>
+           */
+          public Builder mergeAdditionalCases(
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases value) {
+            if (additionalCasesBuilder_ == null) {
+              if (casesOrMessageCase_ == 2
+                  && casesOrMessage_
+                      != com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+                          .getDefaultInstance()) {
+                casesOrMessage_ =
+                    com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.newBuilder(
+                            (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases)
+                                casesOrMessage_)
+                        .mergeFrom(value)
+                        .buildPartial();
+              } else {
+                casesOrMessage_ = value;
+              }
+              onChanged();
+            } else {
+              if (casesOrMessageCase_ == 2) {
+                additionalCasesBuilder_.mergeFrom(value);
+              }
+              additionalCasesBuilder_.setMessage(value);
+            }
+            casesOrMessageCase_ = 2;
+            return this;
+          }
+          /**
+           *
+           *
+           * <pre>
+           * Additional cases to be evaluated.
+           * </pre>
+           *
+           * <code>
+           * .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases additional_cases = 2;
+           * </code>
+           */
+          public Builder clearAdditionalCases() {
+            if (additionalCasesBuilder_ == null) {
+              if (casesOrMessageCase_ == 2) {
+                casesOrMessageCase_ = 0;
+                casesOrMessage_ = null;
+                onChanged();
+              }
+            } else {
+              if (casesOrMessageCase_ == 2) {
+                casesOrMessageCase_ = 0;
+                casesOrMessage_ = null;
+              }
+              additionalCasesBuilder_.clear();
+            }
+            return this;
+          }
+          /**
+           *
+           *
+           * <pre>
+           * Additional cases to be evaluated.
+           * </pre>
+           *
+           * <code>
+           * .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases additional_cases = 2;
+           * </code>
+           */
+          public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Builder
+              getAdditionalCasesBuilder() {
+            return getAdditionalCasesFieldBuilder().getBuilder();
+          }
+          /**
+           *
+           *
+           * <pre>
+           * Additional cases to be evaluated.
+           * </pre>
+           *
+           * <code>
+           * .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases additional_cases = 2;
+           * </code>
+           */
+          @java.lang.Override
+          public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCasesOrBuilder
+              getAdditionalCasesOrBuilder() {
+            if ((casesOrMessageCase_ == 2) && (additionalCasesBuilder_ != null)) {
+              return additionalCasesBuilder_.getMessageOrBuilder();
+            } else {
+              if (casesOrMessageCase_ == 2) {
+                return (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases)
+                    casesOrMessage_;
+              }
+              return com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+                  .getDefaultInstance();
+            }
+          }
+          /**
+           *
+           *
+           * <pre>
+           * Additional cases to be evaluated.
+           * </pre>
+           *
+           * <code>
+           * .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases additional_cases = 2;
+           * </code>
+           */
+          private com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases,
+                  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Builder,
+                  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCasesOrBuilder>
+              getAdditionalCasesFieldBuilder() {
+            if (additionalCasesBuilder_ == null) {
+              if (!(casesOrMessageCase_ == 2)) {
+                casesOrMessage_ =
+                    com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+                        .getDefaultInstance();
+              }
+              additionalCasesBuilder_ =
+                  new com.google.protobuf.SingleFieldBuilderV3<
+                      com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases,
+                      com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Builder,
+                      com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCasesOrBuilder>(
+                      (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases)
+                          casesOrMessage_,
+                      getParentForChildren(),
+                      isClean());
+              casesOrMessage_ = null;
+            }
+            casesOrMessageCase_ = 2;
+            onChanged();
+            ;
+            return additionalCasesBuilder_;
+          }
+
+          @java.lang.Override
+          public final Builder setUnknownFields(
+              final com.google.protobuf.UnknownFieldSet unknownFields) {
+            return super.setUnknownFields(unknownFields);
+          }
+
+          @java.lang.Override
+          public final Builder mergeUnknownFields(
+              final com.google.protobuf.UnknownFieldSet unknownFields) {
+            return super.mergeUnknownFields(unknownFields);
+          }
+
+          // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent)
+        }
+
+        // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent)
+        private static final com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+                .Case.CaseContent
+            DEFAULT_INSTANCE;
+
+        static {
+          DEFAULT_INSTANCE =
+              new com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                  .CaseContent();
+        }
+
+        public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                .CaseContent
+            getDefaultInstance() {
+          return DEFAULT_INSTANCE;
+        }
+
+        private static final com.google.protobuf.Parser<CaseContent> PARSER =
+            new com.google.protobuf.AbstractParser<CaseContent>() {
+              @java.lang.Override
+              public CaseContent parsePartialFrom(
+                  com.google.protobuf.CodedInputStream input,
+                  com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                  throws com.google.protobuf.InvalidProtocolBufferException {
+                return new CaseContent(input, extensionRegistry);
+              }
+            };
+
+        public static com.google.protobuf.Parser<CaseContent> parser() {
+          return PARSER;
+        }
+
+        @java.lang.Override
+        public com.google.protobuf.Parser<CaseContent> getParserForType() {
+          return PARSER;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+            getDefaultInstanceForType() {
+          return DEFAULT_INSTANCE;
+        }
+      }
+
+      public static final int CONDITION_FIELD_NUMBER = 1;
+      private volatile java.lang.Object condition_;
+      /**
+       *
+       *
+       * <pre>
+       * The condition to activate and select this case. Empty means the
+       * condition is always true. The condition is evaluated against [form
+       * parameters][Form.parameters] or [session
+       * parameters][SessionInfo.parameters].
+       * See the [conditions
+       * reference](https://cloud.google.com/dialogflow/cx/docs/reference/condition).
+       * </pre>
+       *
+       * <code>string condition = 1;</code>
+       *
+       * @return The condition.
+       */
+      @java.lang.Override
+      public java.lang.String getCondition() {
+        java.lang.Object ref = condition_;
+        if (ref instanceof java.lang.String) {
+          return (java.lang.String) ref;
+        } else {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          condition_ = s;
+          return s;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The condition to activate and select this case. Empty means the
+       * condition is always true. The condition is evaluated against [form
+       * parameters][Form.parameters] or [session
+       * parameters][SessionInfo.parameters].
+       * See the [conditions
+       * reference](https://cloud.google.com/dialogflow/cx/docs/reference/condition).
+       * </pre>
+       *
+       * <code>string condition = 1;</code>
+       *
+       * @return The bytes for condition.
+       */
+      @java.lang.Override
+      public com.google.protobuf.ByteString getConditionBytes() {
+        java.lang.Object ref = condition_;
+        if (ref instanceof java.lang.String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          condition_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+
+      public static final int CASE_CONTENT_FIELD_NUMBER = 2;
+      private java.util.List<
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent>
+          caseContent_;
+      /**
+       *
+       *
+       * <pre>
+       * A list of case content.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+       * </code>
+       */
+      @java.lang.Override
+      public java.util.List<
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent>
+          getCaseContentList() {
+        return caseContent_;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * A list of case content.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+       * </code>
+       */
+      @java.lang.Override
+      public java.util.List<
+              ? extends
+                  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                      .CaseContentOrBuilder>
+          getCaseContentOrBuilderList() {
+        return caseContent_;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * A list of case content.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+       * </code>
+       */
+      @java.lang.Override
+      public int getCaseContentCount() {
+        return caseContent_.size();
+      }
+      /**
+       *
+       *
+       * <pre>
+       * A list of case content.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+       * </code>
+       */
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+          getCaseContent(int index) {
+        return caseContent_.get(index);
+      }
+      /**
+       *
+       *
+       * <pre>
+       * A list of case content.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+       * </code>
+       */
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+              .CaseContentOrBuilder
+          getCaseContentOrBuilder(int index) {
+        return caseContent_.get(index);
+      }
+
+      private byte memoizedIsInitialized = -1;
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        byte isInitialized = memoizedIsInitialized;
+        if (isInitialized == 1) return true;
+        if (isInitialized == 0) return false;
+
+        memoizedIsInitialized = 1;
+        return true;
+      }
+
+      @java.lang.Override
+      public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+        if (!getConditionBytes().isEmpty()) {
+          com.google.protobuf.GeneratedMessageV3.writeString(output, 1, condition_);
+        }
+        for (int i = 0; i < caseContent_.size(); i++) {
+          output.writeMessage(2, caseContent_.get(i));
+        }
+        unknownFields.writeTo(output);
+      }
+
+      @java.lang.Override
+      public int getSerializedSize() {
+        int size = memoizedSize;
+        if (size != -1) return size;
+
+        size = 0;
+        if (!getConditionBytes().isEmpty()) {
+          size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, condition_);
+        }
+        for (int i = 0; i < caseContent_.size(); i++) {
+          size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, caseContent_.get(i));
+        }
+        size += unknownFields.getSerializedSize();
+        memoizedSize = size;
+        return size;
+      }
+
+      @java.lang.Override
+      public boolean equals(final java.lang.Object obj) {
+        if (obj == this) {
+          return true;
+        }
+        if (!(obj
+            instanceof com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case)) {
+          return super.equals(obj);
+        }
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case other =
+            (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case) obj;
+
+        if (!getCondition().equals(other.getCondition())) return false;
+        if (!getCaseContentList().equals(other.getCaseContentList())) return false;
+        if (!unknownFields.equals(other.unknownFields)) return false;
+        return true;
+      }
+
+      @java.lang.Override
+      public int hashCode() {
+        if (memoizedHashCode != 0) {
+          return memoizedHashCode;
+        }
+        int hash = 41;
+        hash = (19 * hash) + getDescriptor().hashCode();
+        hash = (37 * hash) + CONDITION_FIELD_NUMBER;
+        hash = (53 * hash) + getCondition().hashCode();
+        if (getCaseContentCount() > 0) {
+          hash = (37 * hash) + CASE_CONTENT_FIELD_NUMBER;
+          hash = (53 * hash) + getCaseContentList().hashCode();
+        }
+        hash = (29 * hash) + unknownFields.hashCode();
+        memoizedHashCode = hash;
+        return hash;
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+          parseFrom(java.nio.ByteBuffer data)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+          parseFrom(
+              java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+          parseFrom(com.google.protobuf.ByteString data)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+          parseFrom(
+              com.google.protobuf.ByteString data,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+          parseFrom(byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+          parseFrom(byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+          parseFrom(java.io.InputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+          parseFrom(
+              java.io.InputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+          parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+          parseDelimitedFrom(
+              java.io.InputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+          parseFrom(com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+          parseFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      @java.lang.Override
+      public Builder newBuilderForType() {
+        return newBuilder();
+      }
+
+      public static Builder newBuilder() {
+        return DEFAULT_INSTANCE.toBuilder();
+      }
+
+      public static Builder newBuilder(
+          com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case prototype) {
+        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+      }
+
+      @java.lang.Override
+      public Builder toBuilder() {
+        return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+      }
+
+      @java.lang.Override
+      protected Builder newBuilderForType(
+          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        Builder builder = new Builder(parent);
+        return builder;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Each case has a Boolean condition. When it is evaluated to be True, the
+       * corresponding messages will be selected and evaluated recursively.
+       * </pre>
+       *
+       * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case}
+       */
+      public static final class Builder
+          extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+          implements
+          // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case)
+          com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.CaseOrBuilder {
+        public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+          return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+              .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_Case_descriptor;
+        }
+
+        @java.lang.Override
+        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+            internalGetFieldAccessorTable() {
+          return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+              .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_Case_fieldAccessorTable
+              .ensureFieldAccessorsInitialized(
+                  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.class,
+                  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.Builder
+                      .class);
+        }
+
+        // Construct using
+        // com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.newBuilder()
+        private Builder() {
+          maybeForceBuilderInitialization();
+        }
+
+        private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+          super(parent);
+          maybeForceBuilderInitialization();
+        }
+
+        private void maybeForceBuilderInitialization() {
+          if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+            getCaseContentFieldBuilder();
+          }
+        }
+
+        @java.lang.Override
+        public Builder clear() {
+          super.clear();
+          condition_ = "";
+
+          if (caseContentBuilder_ == null) {
+            caseContent_ = java.util.Collections.emptyList();
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            caseContentBuilder_.clear();
+          }
+          return this;
+        }
+
+        @java.lang.Override
+        public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+          return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+              .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_Case_descriptor;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+            getDefaultInstanceForType() {
+          return com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+              .getDefaultInstance();
+        }
+
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case build() {
+          com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case result =
+              buildPartial();
+          if (!result.isInitialized()) {
+            throw newUninitializedMessageException(result);
+          }
+          return result;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+            buildPartial() {
+          com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case result =
+              new com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case(this);
+          int from_bitField0_ = bitField0_;
+          result.condition_ = condition_;
+          if (caseContentBuilder_ == null) {
+            if (((bitField0_ & 0x00000001) != 0)) {
+              caseContent_ = java.util.Collections.unmodifiableList(caseContent_);
+              bitField0_ = (bitField0_ & ~0x00000001);
+            }
+            result.caseContent_ = caseContent_;
+          } else {
+            result.caseContent_ = caseContentBuilder_.build();
+          }
+          onBuilt();
+          return result;
+        }
+
+        @java.lang.Override
+        public Builder clone() {
+          return super.clone();
+        }
+
+        @java.lang.Override
+        public Builder setField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.setField(field, value);
+        }
+
+        @java.lang.Override
+        public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+          return super.clearField(field);
+        }
+
+        @java.lang.Override
+        public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+          return super.clearOneof(oneof);
+        }
+
+        @java.lang.Override
+        public Builder setRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field,
+            int index,
+            java.lang.Object value) {
+          return super.setRepeatedField(field, index, value);
+        }
+
+        @java.lang.Override
+        public Builder addRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.addRepeatedField(field, value);
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(com.google.protobuf.Message other) {
+          if (other
+              instanceof com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case) {
+            return mergeFrom(
+                (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case) other);
+          } else {
+            super.mergeFrom(other);
+            return this;
+          }
+        }
+
+        public Builder mergeFrom(
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case other) {
+          if (other
+              == com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                  .getDefaultInstance()) return this;
+          if (!other.getCondition().isEmpty()) {
+            condition_ = other.condition_;
+            onChanged();
+          }
+          if (caseContentBuilder_ == null) {
+            if (!other.caseContent_.isEmpty()) {
+              if (caseContent_.isEmpty()) {
+                caseContent_ = other.caseContent_;
+                bitField0_ = (bitField0_ & ~0x00000001);
+              } else {
+                ensureCaseContentIsMutable();
+                caseContent_.addAll(other.caseContent_);
+              }
+              onChanged();
+            }
+          } else {
+            if (!other.caseContent_.isEmpty()) {
+              if (caseContentBuilder_.isEmpty()) {
+                caseContentBuilder_.dispose();
+                caseContentBuilder_ = null;
+                caseContent_ = other.caseContent_;
+                bitField0_ = (bitField0_ & ~0x00000001);
+                caseContentBuilder_ =
+                    com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                        ? getCaseContentFieldBuilder()
+                        : null;
+              } else {
+                caseContentBuilder_.addAllMessages(other.caseContent_);
+              }
+            }
+          }
+          this.mergeUnknownFields(other.unknownFields);
+          onChanged();
+          return this;
+        }
+
+        @java.lang.Override
+        public final boolean isInitialized() {
+          return true;
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+          com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case parsedMessage =
+              null;
+          try {
+            parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            parsedMessage =
+                (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case)
+                    e.getUnfinishedMessage();
+            throw e.unwrapIOException();
+          } finally {
+            if (parsedMessage != null) {
+              mergeFrom(parsedMessage);
+            }
+          }
+          return this;
+        }
+
+        private int bitField0_;
+
+        private java.lang.Object condition_ = "";
+        /**
+         *
+         *
+         * <pre>
+         * The condition to activate and select this case. Empty means the
+         * condition is always true. The condition is evaluated against [form
+         * parameters][Form.parameters] or [session
+         * parameters][SessionInfo.parameters].
+         * See the [conditions
+         * reference](https://cloud.google.com/dialogflow/cx/docs/reference/condition).
+         * </pre>
+         *
+         * <code>string condition = 1;</code>
+         *
+         * @return The condition.
+         */
+        public java.lang.String getCondition() {
+          java.lang.Object ref = condition_;
+          if (!(ref instanceof java.lang.String)) {
+            com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+            java.lang.String s = bs.toStringUtf8();
+            condition_ = s;
+            return s;
+          } else {
+            return (java.lang.String) ref;
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The condition to activate and select this case. Empty means the
+         * condition is always true. The condition is evaluated against [form
+         * parameters][Form.parameters] or [session
+         * parameters][SessionInfo.parameters].
+         * See the [conditions
+         * reference](https://cloud.google.com/dialogflow/cx/docs/reference/condition).
+         * </pre>
+         *
+         * <code>string condition = 1;</code>
+         *
+         * @return The bytes for condition.
+         */
+        public com.google.protobuf.ByteString getConditionBytes() {
+          java.lang.Object ref = condition_;
+          if (ref instanceof String) {
+            com.google.protobuf.ByteString b =
+                com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+            condition_ = b;
+            return b;
+          } else {
+            return (com.google.protobuf.ByteString) ref;
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The condition to activate and select this case. Empty means the
+         * condition is always true. The condition is evaluated against [form
+         * parameters][Form.parameters] or [session
+         * parameters][SessionInfo.parameters].
+         * See the [conditions
+         * reference](https://cloud.google.com/dialogflow/cx/docs/reference/condition).
+         * </pre>
+         *
+         * <code>string condition = 1;</code>
+         *
+         * @param value The condition to set.
+         * @return This builder for chaining.
+         */
+        public Builder setCondition(java.lang.String value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+
+          condition_ = value;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The condition to activate and select this case. Empty means the
+         * condition is always true. The condition is evaluated against [form
+         * parameters][Form.parameters] or [session
+         * parameters][SessionInfo.parameters].
+         * See the [conditions
+         * reference](https://cloud.google.com/dialogflow/cx/docs/reference/condition).
+         * </pre>
+         *
+         * <code>string condition = 1;</code>
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearCondition() {
+
+          condition_ = getDefaultInstance().getCondition();
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The condition to activate and select this case. Empty means the
+         * condition is always true. The condition is evaluated against [form
+         * parameters][Form.parameters] or [session
+         * parameters][SessionInfo.parameters].
+         * See the [conditions
+         * reference](https://cloud.google.com/dialogflow/cx/docs/reference/condition).
+         * </pre>
+         *
+         * <code>string condition = 1;</code>
+         *
+         * @param value The bytes for condition to set.
+         * @return This builder for chaining.
+         */
+        public Builder setConditionBytes(com.google.protobuf.ByteString value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          checkByteStringIsUtf8(value);
+
+          condition_ = value;
+          onChanged();
+          return this;
+        }
+
+        private java.util.List<
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                    .CaseContent>
+            caseContent_ = java.util.Collections.emptyList();
+
+        private void ensureCaseContentIsMutable() {
+          if (!((bitField0_ & 0x00000001) != 0)) {
+            caseContent_ =
+                new java.util.ArrayList<
+                    com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                        .CaseContent>(caseContent_);
+            bitField0_ |= 0x00000001;
+          }
+        }
+
+        private com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                    .CaseContent,
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+                    .Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                    .CaseContentOrBuilder>
+            caseContentBuilder_;
+
+        /**
+         *
+         *
+         * <pre>
+         * A list of case content.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+         * </code>
+         */
+        public java.util.List<
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                    .CaseContent>
+            getCaseContentList() {
+          if (caseContentBuilder_ == null) {
+            return java.util.Collections.unmodifiableList(caseContent_);
+          } else {
+            return caseContentBuilder_.getMessageList();
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * A list of case content.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+         * </code>
+         */
+        public int getCaseContentCount() {
+          if (caseContentBuilder_ == null) {
+            return caseContent_.size();
+          } else {
+            return caseContentBuilder_.getCount();
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * A list of case content.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+         * </code>
+         */
+        public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+            getCaseContent(int index) {
+          if (caseContentBuilder_ == null) {
+            return caseContent_.get(index);
+          } else {
+            return caseContentBuilder_.getMessage(index);
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * A list of case content.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+         * </code>
+         */
+        public Builder setCaseContent(
+            int index,
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+                value) {
+          if (caseContentBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureCaseContentIsMutable();
+            caseContent_.set(index, value);
+            onChanged();
+          } else {
+            caseContentBuilder_.setMessage(index, value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * A list of case content.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+         * </code>
+         */
+        public Builder setCaseContent(
+            int index,
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+                    .Builder
+                builderForValue) {
+          if (caseContentBuilder_ == null) {
+            ensureCaseContentIsMutable();
+            caseContent_.set(index, builderForValue.build());
+            onChanged();
+          } else {
+            caseContentBuilder_.setMessage(index, builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * A list of case content.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+         * </code>
+         */
+        public Builder addCaseContent(
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+                value) {
+          if (caseContentBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureCaseContentIsMutable();
+            caseContent_.add(value);
+            onChanged();
+          } else {
+            caseContentBuilder_.addMessage(value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * A list of case content.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+         * </code>
+         */
+        public Builder addCaseContent(
+            int index,
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+                value) {
+          if (caseContentBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureCaseContentIsMutable();
+            caseContent_.add(index, value);
+            onChanged();
+          } else {
+            caseContentBuilder_.addMessage(index, value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * A list of case content.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+         * </code>
+         */
+        public Builder addCaseContent(
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+                    .Builder
+                builderForValue) {
+          if (caseContentBuilder_ == null) {
+            ensureCaseContentIsMutable();
+            caseContent_.add(builderForValue.build());
+            onChanged();
+          } else {
+            caseContentBuilder_.addMessage(builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * A list of case content.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+         * </code>
+         */
+        public Builder addCaseContent(
+            int index,
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+                    .Builder
+                builderForValue) {
+          if (caseContentBuilder_ == null) {
+            ensureCaseContentIsMutable();
+            caseContent_.add(index, builderForValue.build());
+            onChanged();
+          } else {
+            caseContentBuilder_.addMessage(index, builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * A list of case content.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+         * </code>
+         */
+        public Builder addAllCaseContent(
+            java.lang.Iterable<
+                    ? extends
+                        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                            .CaseContent>
+                values) {
+          if (caseContentBuilder_ == null) {
+            ensureCaseContentIsMutable();
+            com.google.protobuf.AbstractMessageLite.Builder.addAll(values, caseContent_);
+            onChanged();
+          } else {
+            caseContentBuilder_.addAllMessages(values);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * A list of case content.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+         * </code>
+         */
+        public Builder clearCaseContent() {
+          if (caseContentBuilder_ == null) {
+            caseContent_ = java.util.Collections.emptyList();
+            bitField0_ = (bitField0_ & ~0x00000001);
+            onChanged();
+          } else {
+            caseContentBuilder_.clear();
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * A list of case content.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+         * </code>
+         */
+        public Builder removeCaseContent(int index) {
+          if (caseContentBuilder_ == null) {
+            ensureCaseContentIsMutable();
+            caseContent_.remove(index);
+            onChanged();
+          } else {
+            caseContentBuilder_.remove(index);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * A list of case content.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+         * </code>
+         */
+        public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+                .Builder
+            getCaseContentBuilder(int index) {
+          return getCaseContentFieldBuilder().getBuilder(index);
+        }
+        /**
+         *
+         *
+         * <pre>
+         * A list of case content.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+         * </code>
+         */
+        public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                .CaseContentOrBuilder
+            getCaseContentOrBuilder(int index) {
+          if (caseContentBuilder_ == null) {
+            return caseContent_.get(index);
+          } else {
+            return caseContentBuilder_.getMessageOrBuilder(index);
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * A list of case content.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+         * </code>
+         */
+        public java.util.List<
+                ? extends
+                    com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                        .CaseContentOrBuilder>
+            getCaseContentOrBuilderList() {
+          if (caseContentBuilder_ != null) {
+            return caseContentBuilder_.getMessageOrBuilderList();
+          } else {
+            return java.util.Collections.unmodifiableList(caseContent_);
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * A list of case content.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+         * </code>
+         */
+        public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+                .Builder
+            addCaseContentBuilder() {
+          return getCaseContentFieldBuilder()
+              .addBuilder(
+                  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                      .CaseContent.getDefaultInstance());
+        }
+        /**
+         *
+         *
+         * <pre>
+         * A list of case content.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+         * </code>
+         */
+        public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+                .Builder
+            addCaseContentBuilder(int index) {
+          return getCaseContentFieldBuilder()
+              .addBuilder(
+                  index,
+                  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                      .CaseContent.getDefaultInstance());
+        }
+        /**
+         *
+         *
+         * <pre>
+         * A list of case content.
+         * </pre>
+         *
+         * <code>
+         * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent case_content = 2;
+         * </code>
+         */
+        public java.util.List<
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+                    .Builder>
+            getCaseContentBuilderList() {
+          return getCaseContentFieldBuilder().getBuilderList();
+        }
+
+        private com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                    .CaseContent,
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.CaseContent
+                    .Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                    .CaseContentOrBuilder>
+            getCaseContentFieldBuilder() {
+          if (caseContentBuilder_ == null) {
+            caseContentBuilder_ =
+                new com.google.protobuf.RepeatedFieldBuilderV3<
+                    com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                        .CaseContent,
+                    com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                        .CaseContent.Builder,
+                    com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                        .CaseContentOrBuilder>(
+                    caseContent_,
+                    ((bitField0_ & 0x00000001) != 0),
+                    getParentForChildren(),
+                    isClean());
+            caseContent_ = null;
+          }
+          return caseContentBuilder_;
+        }
+
+        @java.lang.Override
+        public final Builder setUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.setUnknownFields(unknownFields);
+        }
+
+        @java.lang.Override
+        public final Builder mergeUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.mergeUnknownFields(unknownFields);
+        }
+
+        // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case)
+      }
+
+      // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case)
+      private static final com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+          DEFAULT_INSTANCE;
+
+      static {
+        DEFAULT_INSTANCE =
+            new com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case();
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+          getDefaultInstance() {
+        return DEFAULT_INSTANCE;
+      }
+
+      private static final com.google.protobuf.Parser<Case> PARSER =
+          new com.google.protobuf.AbstractParser<Case>() {
+            @java.lang.Override
+            public Case parsePartialFrom(
+                com.google.protobuf.CodedInputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+              return new Case(input, extensionRegistry);
+            }
+          };
+
+      public static com.google.protobuf.Parser<Case> parser() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Parser<Case> getParserForType() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+          getDefaultInstanceForType() {
+        return DEFAULT_INSTANCE;
+      }
+    }
+
+    public static final int CASES_FIELD_NUMBER = 1;
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case>
+        cases_;
+    /**
+     *
+     *
+     * <pre>
+     * A list of cascading if-else conditions.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+     * </code>
+     */
+    @java.lang.Override
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case>
+        getCasesList() {
+      return cases_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of cascading if-else conditions.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+     * </code>
+     */
+    @java.lang.Override
+    public java.util.List<
+            ? extends
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.CaseOrBuilder>
+        getCasesOrBuilderList() {
+      return cases_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of cascading if-else conditions.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+     * </code>
+     */
+    @java.lang.Override
+    public int getCasesCount() {
+      return cases_.size();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of cascading if-else conditions.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+     * </code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case getCases(
+        int index) {
+      return cases_.get(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of cascading if-else conditions.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+     * </code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.CaseOrBuilder
+        getCasesOrBuilder(int index) {
+      return cases_.get(index);
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      for (int i = 0; i < cases_.size(); i++) {
+        output.writeMessage(1, cases_.get(i));
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      for (int i = 0; i < cases_.size(); i++) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, cases_.get(i));
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases other =
+          (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases) obj;
+
+      if (!getCasesList().equals(other.getCasesList())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      if (getCasesCount() > 0) {
+        hash = (37 * hash) + CASES_FIELD_NUMBER;
+        hash = (53 * hash) + getCasesList().hashCode();
+      }
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases parseFrom(
+        byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of cascading if-else conditions. Cases are mutually exclusive.
+     * The first one with a matching condition is selected, all the rest ignored.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases)
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCasesOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.class,
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Builder.class);
+      }
+
+      // Construct using
+      // com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+          getCasesFieldBuilder();
+        }
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        if (casesBuilder_ == null) {
+          cases_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000001);
+        } else {
+          casesBuilder_.clear();
+        }
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+          getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+            .getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases build() {
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases buildPartial() {
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases result =
+            new com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases(this);
+        int from_bitField0_ = bitField0_;
+        if (casesBuilder_ == null) {
+          if (((bitField0_ & 0x00000001) != 0)) {
+            cases_ = java.util.Collections.unmodifiableList(cases_);
+            bitField0_ = (bitField0_ & ~0x00000001);
+          }
+          result.cases_ = cases_;
+        } else {
+          result.cases_ = casesBuilder_.build();
+        }
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases) {
+          return mergeFrom(
+              (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases other) {
+        if (other
+            == com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+                .getDefaultInstance()) return this;
+        if (casesBuilder_ == null) {
+          if (!other.cases_.isEmpty()) {
+            if (cases_.isEmpty()) {
+              cases_ = other.cases_;
+              bitField0_ = (bitField0_ & ~0x00000001);
+            } else {
+              ensureCasesIsMutable();
+              cases_.addAll(other.cases_);
+            }
+            onChanged();
+          }
+        } else {
+          if (!other.cases_.isEmpty()) {
+            if (casesBuilder_.isEmpty()) {
+              casesBuilder_.dispose();
+              casesBuilder_ = null;
+              cases_ = other.cases_;
+              bitField0_ = (bitField0_ & ~0x00000001);
+              casesBuilder_ =
+                  com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                      ? getCasesFieldBuilder()
+                      : null;
+            } else {
+              casesBuilder_.addAllMessages(other.cases_);
+            }
+          }
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases)
+                  e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private int bitField0_;
+
+      private java.util.List<
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case>
+          cases_ = java.util.Collections.emptyList();
+
+      private void ensureCasesIsMutable() {
+        if (!((bitField0_ & 0x00000001) != 0)) {
+          cases_ =
+              new java.util.ArrayList<
+                  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case>(cases_);
+          bitField0_ |= 0x00000001;
+        }
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case,
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.Builder,
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.CaseOrBuilder>
+          casesBuilder_;
+
+      /**
+       *
+       *
+       * <pre>
+       * A list of cascading if-else conditions.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+       * </code>
+       */
+      public java.util.List<
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case>
+          getCasesList() {
+        if (casesBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(cases_);
+        } else {
+          return casesBuilder_.getMessageList();
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * A list of cascading if-else conditions.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+       * </code>
+       */
+      public int getCasesCount() {
+        if (casesBuilder_ == null) {
+          return cases_.size();
+        } else {
+          return casesBuilder_.getCount();
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * A list of cascading if-else conditions.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+       * </code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case getCases(
+          int index) {
+        if (casesBuilder_ == null) {
+          return cases_.get(index);
+        } else {
+          return casesBuilder_.getMessage(index);
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * A list of cascading if-else conditions.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+       * </code>
+       */
+      public Builder setCases(
+          int index,
+          com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case value) {
+        if (casesBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureCasesIsMutable();
+          cases_.set(index, value);
+          onChanged();
+        } else {
+          casesBuilder_.setMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * A list of cascading if-else conditions.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+       * </code>
+       */
+      public Builder setCases(
+          int index,
+          com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.Builder
+              builderForValue) {
+        if (casesBuilder_ == null) {
+          ensureCasesIsMutable();
+          cases_.set(index, builderForValue.build());
+          onChanged();
+        } else {
+          casesBuilder_.setMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * A list of cascading if-else conditions.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+       * </code>
+       */
+      public Builder addCases(
+          com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case value) {
+        if (casesBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureCasesIsMutable();
+          cases_.add(value);
+          onChanged();
+        } else {
+          casesBuilder_.addMessage(value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * A list of cascading if-else conditions.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+       * </code>
+       */
+      public Builder addCases(
+          int index,
+          com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case value) {
+        if (casesBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureCasesIsMutable();
+          cases_.add(index, value);
+          onChanged();
+        } else {
+          casesBuilder_.addMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * A list of cascading if-else conditions.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+       * </code>
+       */
+      public Builder addCases(
+          com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.Builder
+              builderForValue) {
+        if (casesBuilder_ == null) {
+          ensureCasesIsMutable();
+          cases_.add(builderForValue.build());
+          onChanged();
+        } else {
+          casesBuilder_.addMessage(builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * A list of cascading if-else conditions.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+       * </code>
+       */
+      public Builder addCases(
+          int index,
+          com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.Builder
+              builderForValue) {
+        if (casesBuilder_ == null) {
+          ensureCasesIsMutable();
+          cases_.add(index, builderForValue.build());
+          onChanged();
+        } else {
+          casesBuilder_.addMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * A list of cascading if-else conditions.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+       * </code>
+       */
+      public Builder addAllCases(
+          java.lang.Iterable<
+                  ? extends
+                      com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case>
+              values) {
+        if (casesBuilder_ == null) {
+          ensureCasesIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, cases_);
+          onChanged();
+        } else {
+          casesBuilder_.addAllMessages(values);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * A list of cascading if-else conditions.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+       * </code>
+       */
+      public Builder clearCases() {
+        if (casesBuilder_ == null) {
+          cases_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000001);
+          onChanged();
+        } else {
+          casesBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * A list of cascading if-else conditions.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+       * </code>
+       */
+      public Builder removeCases(int index) {
+        if (casesBuilder_ == null) {
+          ensureCasesIsMutable();
+          cases_.remove(index);
+          onChanged();
+        } else {
+          casesBuilder_.remove(index);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * A list of cascading if-else conditions.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+       * </code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.Builder
+          getCasesBuilder(int index) {
+        return getCasesFieldBuilder().getBuilder(index);
+      }
+      /**
+       *
+       *
+       * <pre>
+       * A list of cascading if-else conditions.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+       * </code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.CaseOrBuilder
+          getCasesOrBuilder(int index) {
+        if (casesBuilder_ == null) {
+          return cases_.get(index);
+        } else {
+          return casesBuilder_.getMessageOrBuilder(index);
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * A list of cascading if-else conditions.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+       * </code>
+       */
+      public java.util.List<
+              ? extends
+                  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.CaseOrBuilder>
+          getCasesOrBuilderList() {
+        if (casesBuilder_ != null) {
+          return casesBuilder_.getMessageOrBuilderList();
+        } else {
+          return java.util.Collections.unmodifiableList(cases_);
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * A list of cascading if-else conditions.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+       * </code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.Builder
+          addCasesBuilder() {
+        return getCasesFieldBuilder()
+            .addBuilder(
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                    .getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * <pre>
+       * A list of cascading if-else conditions.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+       * </code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.Builder
+          addCasesBuilder(int index) {
+        return getCasesFieldBuilder()
+            .addBuilder(
+                index,
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case
+                    .getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * <pre>
+       * A list of cascading if-else conditions.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case cases = 1;
+       * </code>
+       */
+      public java.util.List<
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.Builder>
+          getCasesBuilderList() {
+        return getCasesFieldBuilder().getBuilderList();
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case,
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.Builder,
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.CaseOrBuilder>
+          getCasesFieldBuilder() {
+        if (casesBuilder_ == null) {
+          casesBuilder_ =
+              new com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case,
+                  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Case.Builder,
+                  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+                      .CaseOrBuilder>(
+                  cases_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+          cases_ = null;
+        }
+        return casesBuilder_;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases)
+    private static final com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases();
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<ConditionalCases> PARSER =
+        new com.google.protobuf.AbstractParser<ConditionalCases>() {
+          @java.lang.Override
+          public ConditionalCases parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new ConditionalCases(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser<ConditionalCases> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<ConditionalCases> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public static final int MESSAGES_FIELD_NUMBER = 1;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage> messages_;
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich message responses to present to the user.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage> getMessagesList() {
+    return messages_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich message responses to present to the user.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>
+      getMessagesOrBuilderList() {
+    return messages_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich message responses to present to the user.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+   */
+  @java.lang.Override
+  public int getMessagesCount() {
+    return messages_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich message responses to present to the user.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage getMessages(int index) {
+    return messages_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich message responses to present to the user.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder getMessagesOrBuilder(
+      int index) {
+    return messages_.get(index);
+  }
+
+  public static final int WEBHOOK_FIELD_NUMBER = 2;
+  private volatile java.lang.Object webhook_;
+  /**
+   *
+   *
+   * <pre>
+   * The webhook to call.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+   * </pre>
+   *
+   * <code>string webhook = 2 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The webhook.
+   */
+  @java.lang.Override
+  public java.lang.String getWebhook() {
+    java.lang.Object ref = webhook_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      webhook_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The webhook to call.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+   * </pre>
+   *
+   * <code>string webhook = 2 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for webhook.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getWebhookBytes() {
+    java.lang.Object ref = webhook_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      webhook_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int TAG_FIELD_NUMBER = 3;
+  private volatile java.lang.Object tag_;
+  /**
+   *
+   *
+   * <pre>
+   * The tag used by the webhook to identify which fulfillment is being called.
+   * This field is required if `webhook` is specified.
+   * </pre>
+   *
+   * <code>string tag = 3;</code>
+   *
+   * @return The tag.
+   */
+  @java.lang.Override
+  public java.lang.String getTag() {
+    java.lang.Object ref = tag_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      tag_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The tag used by the webhook to identify which fulfillment is being called.
+   * This field is required if `webhook` is specified.
+   * </pre>
+   *
+   * <code>string tag = 3;</code>
+   *
+   * @return The bytes for tag.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getTagBytes() {
+    java.lang.Object ref = tag_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      tag_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int SET_PARAMETER_ACTIONS_FIELD_NUMBER = 4;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction>
+      setParameterActions_;
+  /**
+   *
+   *
+   * <pre>
+   * Set parameter values before executing the webhook.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction>
+      getSetParameterActionsList() {
+    return setParameterActions_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Set parameter values before executing the webhook.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<
+          ? extends com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterActionOrBuilder>
+      getSetParameterActionsOrBuilderList() {
+    return setParameterActions_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Set parameter values before executing the webhook.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+   * </code>
+   */
+  @java.lang.Override
+  public int getSetParameterActionsCount() {
+    return setParameterActions_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Set parameter values before executing the webhook.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction
+      getSetParameterActions(int index) {
+    return setParameterActions_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Set parameter values before executing the webhook.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterActionOrBuilder
+      getSetParameterActionsOrBuilder(int index) {
+    return setParameterActions_.get(index);
+  }
+
+  public static final int CONDITIONAL_CASES_FIELD_NUMBER = 5;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases>
+      conditionalCases_;
+  /**
+   *
+   *
+   * <pre>
+   * Conditional cases for this fulfillment.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases>
+      getConditionalCasesList() {
+    return conditionalCases_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Conditional cases for this fulfillment.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<
+          ? extends com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCasesOrBuilder>
+      getConditionalCasesOrBuilderList() {
+    return conditionalCases_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Conditional cases for this fulfillment.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+   * </code>
+   */
+  @java.lang.Override
+  public int getConditionalCasesCount() {
+    return conditionalCases_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Conditional cases for this fulfillment.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases getConditionalCases(
+      int index) {
+    return conditionalCases_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Conditional cases for this fulfillment.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCasesOrBuilder
+      getConditionalCasesOrBuilder(int index) {
+    return conditionalCases_.get(index);
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    for (int i = 0; i < messages_.size(); i++) {
+      output.writeMessage(1, messages_.get(i));
+    }
+    if (!getWebhookBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, webhook_);
+    }
+    if (!getTagBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, tag_);
+    }
+    for (int i = 0; i < setParameterActions_.size(); i++) {
+      output.writeMessage(4, setParameterActions_.get(i));
+    }
+    for (int i = 0; i < conditionalCases_.size(); i++) {
+      output.writeMessage(5, conditionalCases_.get(i));
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    for (int i = 0; i < messages_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, messages_.get(i));
+    }
+    if (!getWebhookBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, webhook_);
+    }
+    if (!getTagBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, tag_);
+    }
+    for (int i = 0; i < setParameterActions_.size(); i++) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(4, setParameterActions_.get(i));
+    }
+    for (int i = 0; i < conditionalCases_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, conditionalCases_.get(i));
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.Fulfillment)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.Fulfillment other =
+        (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment) obj;
+
+    if (!getMessagesList().equals(other.getMessagesList())) return false;
+    if (!getWebhook().equals(other.getWebhook())) return false;
+    if (!getTag().equals(other.getTag())) return false;
+    if (!getSetParameterActionsList().equals(other.getSetParameterActionsList())) return false;
+    if (!getConditionalCasesList().equals(other.getConditionalCasesList())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (getMessagesCount() > 0) {
+      hash = (37 * hash) + MESSAGES_FIELD_NUMBER;
+      hash = (53 * hash) + getMessagesList().hashCode();
+    }
+    hash = (37 * hash) + WEBHOOK_FIELD_NUMBER;
+    hash = (53 * hash) + getWebhook().hashCode();
+    hash = (37 * hash) + TAG_FIELD_NUMBER;
+    hash = (53 * hash) + getTag().hashCode();
+    if (getSetParameterActionsCount() > 0) {
+      hash = (37 * hash) + SET_PARAMETER_ACTIONS_FIELD_NUMBER;
+      hash = (53 * hash) + getSetParameterActionsList().hashCode();
+    }
+    if (getConditionalCasesCount() > 0) {
+      hash = (37 * hash) + CONDITIONAL_CASES_FIELD_NUMBER;
+      hash = (53 * hash) + getConditionalCasesList().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.cx.v3beta1.Fulfillment prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A fulfillment can do one or more of the following actions at the same time:
+   *   * Generate rich message responses.
+   *   * Set parameter values.
+   *   * Call the webhook.
+   * Fulfillments can be called at various stages in the [Page][google.cloud.dialogflow.cx.v3beta1.Page] or
+   * [Form][google.cloud.dialogflow.cx.v3beta1.Form] lifecycle. For example, when a [DetectIntentRequest][google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest] drives a
+   * session to enter a new page, the page's entry fulfillment can add a static
+   * response to the [QueryResult][google.cloud.dialogflow.cx.v3beta1.QueryResult] in the returning [DetectIntentResponse][google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse],
+   * call the webhook (for example, to load user data from a database), or both.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Fulfillment}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.Fulfillment)
+      com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.class,
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getMessagesFieldBuilder();
+        getSetParameterActionsFieldBuilder();
+        getConditionalCasesFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (messagesBuilder_ == null) {
+        messages_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        messagesBuilder_.clear();
+      }
+      webhook_ = "";
+
+      tag_ = "";
+
+      if (setParameterActionsBuilder_ == null) {
+        setParameterActions_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000002);
+      } else {
+        setParameterActionsBuilder_.clear();
+      }
+      if (conditionalCasesBuilder_ == null) {
+        conditionalCases_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000004);
+      } else {
+        conditionalCasesBuilder_.clear();
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment build() {
+      com.google.cloud.dialogflow.cx.v3beta1.Fulfillment result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.Fulfillment result =
+          new com.google.cloud.dialogflow.cx.v3beta1.Fulfillment(this);
+      int from_bitField0_ = bitField0_;
+      if (messagesBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          messages_ = java.util.Collections.unmodifiableList(messages_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.messages_ = messages_;
+      } else {
+        result.messages_ = messagesBuilder_.build();
+      }
+      result.webhook_ = webhook_;
+      result.tag_ = tag_;
+      if (setParameterActionsBuilder_ == null) {
+        if (((bitField0_ & 0x00000002) != 0)) {
+          setParameterActions_ = java.util.Collections.unmodifiableList(setParameterActions_);
+          bitField0_ = (bitField0_ & ~0x00000002);
+        }
+        result.setParameterActions_ = setParameterActions_;
+      } else {
+        result.setParameterActions_ = setParameterActionsBuilder_.build();
+      }
+      if (conditionalCasesBuilder_ == null) {
+        if (((bitField0_ & 0x00000004) != 0)) {
+          conditionalCases_ = java.util.Collections.unmodifiableList(conditionalCases_);
+          bitField0_ = (bitField0_ & ~0x00000004);
+        }
+        result.conditionalCases_ = conditionalCases_;
+      } else {
+        result.conditionalCases_ = conditionalCasesBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.Fulfillment) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.Fulfillment) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.Fulfillment other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.getDefaultInstance())
+        return this;
+      if (messagesBuilder_ == null) {
+        if (!other.messages_.isEmpty()) {
+          if (messages_.isEmpty()) {
+            messages_ = other.messages_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureMessagesIsMutable();
+            messages_.addAll(other.messages_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.messages_.isEmpty()) {
+          if (messagesBuilder_.isEmpty()) {
+            messagesBuilder_.dispose();
+            messagesBuilder_ = null;
+            messages_ = other.messages_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            messagesBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getMessagesFieldBuilder()
+                    : null;
+          } else {
+            messagesBuilder_.addAllMessages(other.messages_);
+          }
+        }
+      }
+      if (!other.getWebhook().isEmpty()) {
+        webhook_ = other.webhook_;
+        onChanged();
+      }
+      if (!other.getTag().isEmpty()) {
+        tag_ = other.tag_;
+        onChanged();
+      }
+      if (setParameterActionsBuilder_ == null) {
+        if (!other.setParameterActions_.isEmpty()) {
+          if (setParameterActions_.isEmpty()) {
+            setParameterActions_ = other.setParameterActions_;
+            bitField0_ = (bitField0_ & ~0x00000002);
+          } else {
+            ensureSetParameterActionsIsMutable();
+            setParameterActions_.addAll(other.setParameterActions_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.setParameterActions_.isEmpty()) {
+          if (setParameterActionsBuilder_.isEmpty()) {
+            setParameterActionsBuilder_.dispose();
+            setParameterActionsBuilder_ = null;
+            setParameterActions_ = other.setParameterActions_;
+            bitField0_ = (bitField0_ & ~0x00000002);
+            setParameterActionsBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getSetParameterActionsFieldBuilder()
+                    : null;
+          } else {
+            setParameterActionsBuilder_.addAllMessages(other.setParameterActions_);
+          }
+        }
+      }
+      if (conditionalCasesBuilder_ == null) {
+        if (!other.conditionalCases_.isEmpty()) {
+          if (conditionalCases_.isEmpty()) {
+            conditionalCases_ = other.conditionalCases_;
+            bitField0_ = (bitField0_ & ~0x00000004);
+          } else {
+            ensureConditionalCasesIsMutable();
+            conditionalCases_.addAll(other.conditionalCases_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.conditionalCases_.isEmpty()) {
+          if (conditionalCasesBuilder_.isEmpty()) {
+            conditionalCasesBuilder_.dispose();
+            conditionalCasesBuilder_ = null;
+            conditionalCases_ = other.conditionalCases_;
+            bitField0_ = (bitField0_ & ~0x00000004);
+            conditionalCasesBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getConditionalCasesFieldBuilder()
+                    : null;
+          } else {
+            conditionalCasesBuilder_.addAllMessages(other.conditionalCases_);
+          }
+        }
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.Fulfillment parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.Fulfillment) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage> messages_ =
+        java.util.Collections.emptyList();
+
+    private void ensureMessagesIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        messages_ =
+            new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage>(
+                messages_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>
+        messagesBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage>
+        getMessagesList() {
+      if (messagesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(messages_);
+      } else {
+        return messagesBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    public int getMessagesCount() {
+      if (messagesBuilder_ == null) {
+        return messages_.size();
+      } else {
+        return messagesBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage getMessages(int index) {
+      if (messagesBuilder_ == null) {
+        return messages_.get(index);
+      } else {
+        return messagesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    public Builder setMessages(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage value) {
+      if (messagesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureMessagesIsMutable();
+        messages_.set(index, value);
+        onChanged();
+      } else {
+        messagesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    public Builder setMessages(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder builderForValue) {
+      if (messagesBuilder_ == null) {
+        ensureMessagesIsMutable();
+        messages_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        messagesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    public Builder addMessages(com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage value) {
+      if (messagesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureMessagesIsMutable();
+        messages_.add(value);
+        onChanged();
+      } else {
+        messagesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    public Builder addMessages(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage value) {
+      if (messagesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureMessagesIsMutable();
+        messages_.add(index, value);
+        onChanged();
+      } else {
+        messagesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    public Builder addMessages(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder builderForValue) {
+      if (messagesBuilder_ == null) {
+        ensureMessagesIsMutable();
+        messages_.add(builderForValue.build());
+        onChanged();
+      } else {
+        messagesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    public Builder addMessages(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder builderForValue) {
+      if (messagesBuilder_ == null) {
+        ensureMessagesIsMutable();
+        messages_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        messagesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    public Builder addAllMessages(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage>
+            values) {
+      if (messagesBuilder_ == null) {
+        ensureMessagesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, messages_);
+        onChanged();
+      } else {
+        messagesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    public Builder clearMessages() {
+      if (messagesBuilder_ == null) {
+        messages_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        messagesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    public Builder removeMessages(int index) {
+      if (messagesBuilder_ == null) {
+        ensureMessagesIsMutable();
+        messages_.remove(index);
+        onChanged();
+      } else {
+        messagesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder getMessagesBuilder(
+        int index) {
+      return getMessagesFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder getMessagesOrBuilder(
+        int index) {
+      if (messagesBuilder_ == null) {
+        return messages_.get(index);
+      } else {
+        return messagesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>
+        getMessagesOrBuilderList() {
+      if (messagesBuilder_ != null) {
+        return messagesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(messages_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder addMessagesBuilder() {
+      return getMessagesFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder addMessagesBuilder(
+        int index) {
+      return getMessagesFieldBuilder()
+          .addBuilder(
+              index, com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder>
+        getMessagesBuilderList() {
+      return getMessagesFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>
+        getMessagesFieldBuilder() {
+      if (messagesBuilder_ == null) {
+        messagesBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>(
+                messages_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+        messages_ = null;
+      }
+      return messagesBuilder_;
+    }
+
+    private java.lang.Object webhook_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The webhook to call.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+     * </pre>
+     *
+     * <code>string webhook = 2 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The webhook.
+     */
+    public java.lang.String getWebhook() {
+      java.lang.Object ref = webhook_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        webhook_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The webhook to call.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+     * </pre>
+     *
+     * <code>string webhook = 2 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The bytes for webhook.
+     */
+    public com.google.protobuf.ByteString getWebhookBytes() {
+      java.lang.Object ref = webhook_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        webhook_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The webhook to call.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+     * </pre>
+     *
+     * <code>string webhook = 2 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The webhook to set.
+     * @return This builder for chaining.
+     */
+    public Builder setWebhook(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      webhook_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The webhook to call.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+     * </pre>
+     *
+     * <code>string webhook = 2 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearWebhook() {
+
+      webhook_ = getDefaultInstance().getWebhook();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The webhook to call.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+     * </pre>
+     *
+     * <code>string webhook = 2 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The bytes for webhook to set.
+     * @return This builder for chaining.
+     */
+    public Builder setWebhookBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      webhook_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object tag_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The tag used by the webhook to identify which fulfillment is being called.
+     * This field is required if `webhook` is specified.
+     * </pre>
+     *
+     * <code>string tag = 3;</code>
+     *
+     * @return The tag.
+     */
+    public java.lang.String getTag() {
+      java.lang.Object ref = tag_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        tag_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The tag used by the webhook to identify which fulfillment is being called.
+     * This field is required if `webhook` is specified.
+     * </pre>
+     *
+     * <code>string tag = 3;</code>
+     *
+     * @return The bytes for tag.
+     */
+    public com.google.protobuf.ByteString getTagBytes() {
+      java.lang.Object ref = tag_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        tag_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The tag used by the webhook to identify which fulfillment is being called.
+     * This field is required if `webhook` is specified.
+     * </pre>
+     *
+     * <code>string tag = 3;</code>
+     *
+     * @param value The tag to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTag(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      tag_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The tag used by the webhook to identify which fulfillment is being called.
+     * This field is required if `webhook` is specified.
+     * </pre>
+     *
+     * <code>string tag = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearTag() {
+
+      tag_ = getDefaultInstance().getTag();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The tag used by the webhook to identify which fulfillment is being called.
+     * This field is required if `webhook` is specified.
+     * </pre>
+     *
+     * <code>string tag = 3;</code>
+     *
+     * @param value The bytes for tag to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTagBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      tag_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction>
+        setParameterActions_ = java.util.Collections.emptyList();
+
+    private void ensureSetParameterActionsIsMutable() {
+      if (!((bitField0_ & 0x00000002) != 0)) {
+        setParameterActions_ =
+            new java.util.ArrayList<
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction>(
+                setParameterActions_);
+        bitField0_ |= 0x00000002;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction,
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterActionOrBuilder>
+        setParameterActionsBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * Set parameter values before executing the webhook.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction>
+        getSetParameterActionsList() {
+      if (setParameterActionsBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(setParameterActions_);
+      } else {
+        return setParameterActionsBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Set parameter values before executing the webhook.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+     * </code>
+     */
+    public int getSetParameterActionsCount() {
+      if (setParameterActionsBuilder_ == null) {
+        return setParameterActions_.size();
+      } else {
+        return setParameterActionsBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Set parameter values before executing the webhook.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction
+        getSetParameterActions(int index) {
+      if (setParameterActionsBuilder_ == null) {
+        return setParameterActions_.get(index);
+      } else {
+        return setParameterActionsBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Set parameter values before executing the webhook.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+     * </code>
+     */
+    public Builder setSetParameterActions(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction value) {
+      if (setParameterActionsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureSetParameterActionsIsMutable();
+        setParameterActions_.set(index, value);
+        onChanged();
+      } else {
+        setParameterActionsBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Set parameter values before executing the webhook.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+     * </code>
+     */
+    public Builder setSetParameterActions(
+        int index,
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction.Builder
+            builderForValue) {
+      if (setParameterActionsBuilder_ == null) {
+        ensureSetParameterActionsIsMutable();
+        setParameterActions_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        setParameterActionsBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Set parameter values before executing the webhook.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+     * </code>
+     */
+    public Builder addSetParameterActions(
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction value) {
+      if (setParameterActionsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureSetParameterActionsIsMutable();
+        setParameterActions_.add(value);
+        onChanged();
+      } else {
+        setParameterActionsBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Set parameter values before executing the webhook.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+     * </code>
+     */
+    public Builder addSetParameterActions(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction value) {
+      if (setParameterActionsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureSetParameterActionsIsMutable();
+        setParameterActions_.add(index, value);
+        onChanged();
+      } else {
+        setParameterActionsBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Set parameter values before executing the webhook.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+     * </code>
+     */
+    public Builder addSetParameterActions(
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction.Builder
+            builderForValue) {
+      if (setParameterActionsBuilder_ == null) {
+        ensureSetParameterActionsIsMutable();
+        setParameterActions_.add(builderForValue.build());
+        onChanged();
+      } else {
+        setParameterActionsBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Set parameter values before executing the webhook.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+     * </code>
+     */
+    public Builder addSetParameterActions(
+        int index,
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction.Builder
+            builderForValue) {
+      if (setParameterActionsBuilder_ == null) {
+        ensureSetParameterActionsIsMutable();
+        setParameterActions_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        setParameterActionsBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Set parameter values before executing the webhook.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+     * </code>
+     */
+    public Builder addAllSetParameterActions(
+        java.lang.Iterable<
+                ? extends com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction>
+            values) {
+      if (setParameterActionsBuilder_ == null) {
+        ensureSetParameterActionsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, setParameterActions_);
+        onChanged();
+      } else {
+        setParameterActionsBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Set parameter values before executing the webhook.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+     * </code>
+     */
+    public Builder clearSetParameterActions() {
+      if (setParameterActionsBuilder_ == null) {
+        setParameterActions_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000002);
+        onChanged();
+      } else {
+        setParameterActionsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Set parameter values before executing the webhook.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+     * </code>
+     */
+    public Builder removeSetParameterActions(int index) {
+      if (setParameterActionsBuilder_ == null) {
+        ensureSetParameterActionsIsMutable();
+        setParameterActions_.remove(index);
+        onChanged();
+      } else {
+        setParameterActionsBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Set parameter values before executing the webhook.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction.Builder
+        getSetParameterActionsBuilder(int index) {
+      return getSetParameterActionsFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Set parameter values before executing the webhook.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterActionOrBuilder
+        getSetParameterActionsOrBuilder(int index) {
+      if (setParameterActionsBuilder_ == null) {
+        return setParameterActions_.get(index);
+      } else {
+        return setParameterActionsBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Set parameter values before executing the webhook.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+     * </code>
+     */
+    public java.util.List<
+            ? extends
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterActionOrBuilder>
+        getSetParameterActionsOrBuilderList() {
+      if (setParameterActionsBuilder_ != null) {
+        return setParameterActionsBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(setParameterActions_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Set parameter values before executing the webhook.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction.Builder
+        addSetParameterActionsBuilder() {
+      return getSetParameterActionsFieldBuilder()
+          .addBuilder(
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction
+                  .getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Set parameter values before executing the webhook.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction.Builder
+        addSetParameterActionsBuilder(int index) {
+      return getSetParameterActionsFieldBuilder()
+          .addBuilder(
+              index,
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction
+                  .getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Set parameter values before executing the webhook.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+     * </code>
+     */
+    public java.util.List<
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction.Builder>
+        getSetParameterActionsBuilderList() {
+      return getSetParameterActionsFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction,
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterActionOrBuilder>
+        getSetParameterActionsFieldBuilder() {
+      if (setParameterActionsBuilder_ == null) {
+        setParameterActionsBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction,
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterActionOrBuilder>(
+                setParameterActions_,
+                ((bitField0_ & 0x00000002) != 0),
+                getParentForChildren(),
+                isClean());
+        setParameterActions_ = null;
+      }
+      return setParameterActionsBuilder_;
+    }
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases>
+        conditionalCases_ = java.util.Collections.emptyList();
+
+    private void ensureConditionalCasesIsMutable() {
+      if (!((bitField0_ & 0x00000004) != 0)) {
+        conditionalCases_ =
+            new java.util.ArrayList<
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases>(
+                conditionalCases_);
+        bitField0_ |= 0x00000004;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases,
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCasesOrBuilder>
+        conditionalCasesBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * Conditional cases for this fulfillment.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases>
+        getConditionalCasesList() {
+      if (conditionalCasesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(conditionalCases_);
+      } else {
+        return conditionalCasesBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Conditional cases for this fulfillment.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+     * </code>
+     */
+    public int getConditionalCasesCount() {
+      if (conditionalCasesBuilder_ == null) {
+        return conditionalCases_.size();
+      } else {
+        return conditionalCasesBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Conditional cases for this fulfillment.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases getConditionalCases(
+        int index) {
+      if (conditionalCasesBuilder_ == null) {
+        return conditionalCases_.get(index);
+      } else {
+        return conditionalCasesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Conditional cases for this fulfillment.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+     * </code>
+     */
+    public Builder setConditionalCases(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases value) {
+      if (conditionalCasesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureConditionalCasesIsMutable();
+        conditionalCases_.set(index, value);
+        onChanged();
+      } else {
+        conditionalCasesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Conditional cases for this fulfillment.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+     * </code>
+     */
+    public Builder setConditionalCases(
+        int index,
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Builder
+            builderForValue) {
+      if (conditionalCasesBuilder_ == null) {
+        ensureConditionalCasesIsMutable();
+        conditionalCases_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        conditionalCasesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Conditional cases for this fulfillment.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+     * </code>
+     */
+    public Builder addConditionalCases(
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases value) {
+      if (conditionalCasesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureConditionalCasesIsMutable();
+        conditionalCases_.add(value);
+        onChanged();
+      } else {
+        conditionalCasesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Conditional cases for this fulfillment.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+     * </code>
+     */
+    public Builder addConditionalCases(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases value) {
+      if (conditionalCasesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureConditionalCasesIsMutable();
+        conditionalCases_.add(index, value);
+        onChanged();
+      } else {
+        conditionalCasesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Conditional cases for this fulfillment.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+     * </code>
+     */
+    public Builder addConditionalCases(
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Builder
+            builderForValue) {
+      if (conditionalCasesBuilder_ == null) {
+        ensureConditionalCasesIsMutable();
+        conditionalCases_.add(builderForValue.build());
+        onChanged();
+      } else {
+        conditionalCasesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Conditional cases for this fulfillment.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+     * </code>
+     */
+    public Builder addConditionalCases(
+        int index,
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Builder
+            builderForValue) {
+      if (conditionalCasesBuilder_ == null) {
+        ensureConditionalCasesIsMutable();
+        conditionalCases_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        conditionalCasesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Conditional cases for this fulfillment.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+     * </code>
+     */
+    public Builder addAllConditionalCases(
+        java.lang.Iterable<
+                ? extends com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases>
+            values) {
+      if (conditionalCasesBuilder_ == null) {
+        ensureConditionalCasesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, conditionalCases_);
+        onChanged();
+      } else {
+        conditionalCasesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Conditional cases for this fulfillment.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+     * </code>
+     */
+    public Builder clearConditionalCases() {
+      if (conditionalCasesBuilder_ == null) {
+        conditionalCases_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000004);
+        onChanged();
+      } else {
+        conditionalCasesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Conditional cases for this fulfillment.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+     * </code>
+     */
+    public Builder removeConditionalCases(int index) {
+      if (conditionalCasesBuilder_ == null) {
+        ensureConditionalCasesIsMutable();
+        conditionalCases_.remove(index);
+        onChanged();
+      } else {
+        conditionalCasesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Conditional cases for this fulfillment.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Builder
+        getConditionalCasesBuilder(int index) {
+      return getConditionalCasesFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Conditional cases for this fulfillment.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCasesOrBuilder
+        getConditionalCasesOrBuilder(int index) {
+      if (conditionalCasesBuilder_ == null) {
+        return conditionalCases_.get(index);
+      } else {
+        return conditionalCasesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Conditional cases for this fulfillment.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+     * </code>
+     */
+    public java.util.List<
+            ? extends com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCasesOrBuilder>
+        getConditionalCasesOrBuilderList() {
+      if (conditionalCasesBuilder_ != null) {
+        return conditionalCasesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(conditionalCases_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Conditional cases for this fulfillment.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Builder
+        addConditionalCasesBuilder() {
+      return getConditionalCasesFieldBuilder()
+          .addBuilder(
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+                  .getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Conditional cases for this fulfillment.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Builder
+        addConditionalCasesBuilder(int index) {
+      return getConditionalCasesFieldBuilder()
+          .addBuilder(
+              index,
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases
+                  .getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Conditional cases for this fulfillment.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+     * </code>
+     */
+    public java.util.List<
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Builder>
+        getConditionalCasesBuilderList() {
+      return getConditionalCasesFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases,
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCasesOrBuilder>
+        getConditionalCasesFieldBuilder() {
+      if (conditionalCasesBuilder_ == null) {
+        conditionalCasesBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases,
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCasesOrBuilder>(
+                conditionalCases_,
+                ((bitField0_ & 0x00000004) != 0),
+                getParentForChildren(),
+                isClean());
+        conditionalCases_ = null;
+      }
+      return conditionalCasesBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.Fulfillment)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.Fulfillment)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.Fulfillment DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.Fulfillment();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Fulfillment getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<Fulfillment> PARSER =
+      new com.google.protobuf.AbstractParser<Fulfillment>() {
+        @java.lang.Override
+        public Fulfillment parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new Fulfillment(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<Fulfillment> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<Fulfillment> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FulfillmentOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FulfillmentOrBuilder.java
new file mode 100644
index 000000000..82858d573
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FulfillmentOrBuilder.java
@@ -0,0 +1,265 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/fulfillment.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface FulfillmentOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.Fulfillment)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich message responses to present to the user.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage> getMessagesList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich message responses to present to the user.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage getMessages(int index);
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich message responses to present to the user.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+   */
+  int getMessagesCount();
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich message responses to present to the user.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>
+      getMessagesOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich message responses to present to the user.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder getMessagesOrBuilder(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * The webhook to call.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+   * </pre>
+   *
+   * <code>string webhook = 2 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The webhook.
+   */
+  java.lang.String getWebhook();
+  /**
+   *
+   *
+   * <pre>
+   * The webhook to call.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+   * </pre>
+   *
+   * <code>string webhook = 2 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for webhook.
+   */
+  com.google.protobuf.ByteString getWebhookBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The tag used by the webhook to identify which fulfillment is being called.
+   * This field is required if `webhook` is specified.
+   * </pre>
+   *
+   * <code>string tag = 3;</code>
+   *
+   * @return The tag.
+   */
+  java.lang.String getTag();
+  /**
+   *
+   *
+   * <pre>
+   * The tag used by the webhook to identify which fulfillment is being called.
+   * This field is required if `webhook` is specified.
+   * </pre>
+   *
+   * <code>string tag = 3;</code>
+   *
+   * @return The bytes for tag.
+   */
+  com.google.protobuf.ByteString getTagBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Set parameter values before executing the webhook.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+   * </code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction>
+      getSetParameterActionsList();
+  /**
+   *
+   *
+   * <pre>
+   * Set parameter values before executing the webhook.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction getSetParameterActions(
+      int index);
+  /**
+   *
+   *
+   * <pre>
+   * Set parameter values before executing the webhook.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+   * </code>
+   */
+  int getSetParameterActionsCount();
+  /**
+   *
+   *
+   * <pre>
+   * Set parameter values before executing the webhook.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+   * </code>
+   */
+  java.util.List<
+          ? extends com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterActionOrBuilder>
+      getSetParameterActionsOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * Set parameter values before executing the webhook.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterAction set_parameter_actions = 4;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.SetParameterActionOrBuilder
+      getSetParameterActionsOrBuilder(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * Conditional cases for this fulfillment.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+   * </code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases>
+      getConditionalCasesList();
+  /**
+   *
+   *
+   * <pre>
+   * Conditional cases for this fulfillment.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases getConditionalCases(
+      int index);
+  /**
+   *
+   *
+   * <pre>
+   * Conditional cases for this fulfillment.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+   * </code>
+   */
+  int getConditionalCasesCount();
+  /**
+   *
+   *
+   * <pre>
+   * Conditional cases for this fulfillment.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+   * </code>
+   */
+  java.util.List<
+          ? extends com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCasesOrBuilder>
+      getConditionalCasesOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * Conditional cases for this fulfillment.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCases conditional_cases = 5;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.ConditionalCasesOrBuilder
+      getConditionalCasesOrBuilder(int index);
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FulfillmentProto.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FulfillmentProto.java
new file mode 100644
index 000000000..da558718b
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FulfillmentProto.java
@@ -0,0 +1,162 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/fulfillment.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public final class FulfillmentProto {
+  private FulfillmentProto() {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistryLite registry) {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions((com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_SetParameterAction_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_SetParameterAction_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_Case_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_Case_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_Case_CaseContent_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_Case_CaseContent_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
+    return descriptor;
+  }
+
+  private static com.google.protobuf.Descriptors.FileDescriptor descriptor;
+
+  static {
+    java.lang.String[] descriptorData = {
+      "\n4google/cloud/dialogflow/cx/v3beta1/ful"
+          + "fillment.proto\022\"google.cloud.dialogflow."
+          + "cx.v3beta1\032\031google/api/resource.proto\0329g"
+          + "oogle/cloud/dialogflow/cx/v3beta1/respon"
+          + "se_message.proto\032\034google/protobuf/struct"
+          + ".proto\032\034google/api/annotations.proto\"\344\006\n"
+          + "\013Fulfillment\022E\n\010messages\030\001 \003(\01323.google."
+          + "cloud.dialogflow.cx.v3beta1.ResponseMess"
+          + "age\0227\n\007webhook\030\002 \001(\tB&\372A#\n!dialogflow.go"
+          + "ogleapis.com/Webhook\022\013\n\003tag\030\003 \001(\t\022a\n\025set"
+          + "_parameter_actions\030\004 \003(\0132B.google.cloud."
+          + "dialogflow.cx.v3beta1.Fulfillment.SetPar"
+          + "ameterAction\022[\n\021conditional_cases\030\005 \003(\0132"
+          + "@.google.cloud.dialogflow.cx.v3beta1.Ful"
+          + "fillment.ConditionalCases\032N\n\022SetParamete"
+          + "rAction\022\021\n\tparameter\030\001 \001(\t\022%\n\005value\030\002 \001("
+          + "\0132\026.google.protobuf.Value\032\267\003\n\020Conditiona"
+          + "lCases\022T\n\005cases\030\001 \003(\0132E.google.cloud.dia"
+          + "logflow.cx.v3beta1.Fulfillment.Condition"
+          + "alCases.Case\032\314\002\n\004Case\022\021\n\tcondition\030\001 \001(\t"
+          + "\022g\n\014case_content\030\002 \003(\0132Q.google.cloud.di"
+          + "alogflow.cx.v3beta1.Fulfillment.Conditio"
+          + "nalCases.Case.CaseContent\032\307\001\n\013CaseConten"
+          + "t\022F\n\007message\030\001 \001(\01323.google.cloud.dialog"
+          + "flow.cx.v3beta1.ResponseMessageH\000\022\\\n\020add"
+          + "itional_cases\030\002 \001(\0132@.google.cloud.dialo"
+          + "gflow.cx.v3beta1.Fulfillment.Conditional"
+          + "CasesH\000B\022\n\020cases_or_messageB\257\001\n&com.goog"
+          + "le.cloud.dialogflow.cx.v3beta1B\020Fulfillm"
+          + "entProtoP\001ZDgoogle.golang.org/genproto/g"
+          + "oogleapis/cloud/dialogflow/cx/v3beta1;cx"
+          + "\370\001\001\242\002\002DF\252\002\"Google.Cloud.Dialogflow.Cx.V3"
+          + "Beta1b\006proto3"
+    };
+    descriptor =
+        com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
+            descriptorData,
+            new com.google.protobuf.Descriptors.FileDescriptor[] {
+              com.google.api.ResourceProto.getDescriptor(),
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto.getDescriptor(),
+              com.google.protobuf.StructProto.getDescriptor(),
+              com.google.api.AnnotationsProto.getDescriptor(),
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_descriptor =
+        getDescriptor().getMessageTypes().get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_descriptor,
+            new java.lang.String[] {
+              "Messages", "Webhook", "Tag", "SetParameterActions", "ConditionalCases",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_SetParameterAction_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_SetParameterAction_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_SetParameterAction_descriptor,
+            new java.lang.String[] {
+              "Parameter", "Value",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_descriptor
+            .getNestedTypes()
+            .get(1);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_descriptor,
+            new java.lang.String[] {
+              "Cases",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_Case_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_Case_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_Case_descriptor,
+            new java.lang.String[] {
+              "Condition", "CaseContent",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_Case_CaseContent_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_Case_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_Case_CaseContent_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_Fulfillment_ConditionalCases_Case_CaseContent_descriptor,
+            new java.lang.String[] {
+              "Message", "AdditionalCases", "CasesOrMessage",
+            });
+    com.google.protobuf.ExtensionRegistry registry =
+        com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.ResourceProto.resourceReference);
+    com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
+        descriptor, registry);
+    com.google.api.ResourceProto.getDescriptor();
+    com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto.getDescriptor();
+    com.google.protobuf.StructProto.getDescriptor();
+    com.google.api.AnnotationsProto.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GcsProto.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GcsProto.java
new file mode 100644
index 000000000..6c2e87203
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GcsProto.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/gcs.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public final class GcsProto {
+  private GcsProto() {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistryLite registry) {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions((com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+
+  public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
+    return descriptor;
+  }
+
+  private static com.google.protobuf.Descriptors.FileDescriptor descriptor;
+
+  static {
+    java.lang.String[] descriptorData = {
+      "\n,google/cloud/dialogflow/cx/v3beta1/gcs"
+          + ".proto\022\"google.cloud.dialogflow.cx.v3bet"
+          + "a1\032\037google/api/field_behavior.proto\032\034goo"
+          + "gle/api/annotations.protoB\247\001\n&com.google"
+          + ".cloud.dialogflow.cx.v3beta1B\010GcsProtoP\001"
+          + "ZDgoogle.golang.org/genproto/googleapis/"
+          + "cloud/dialogflow/cx/v3beta1;cx\370\001\001\242\002\002DF\252\002"
+          + "\"Google.Cloud.Dialogflow.Cx.V3Beta1b\006pro"
+          + "to3"
+    };
+    descriptor =
+        com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
+            descriptorData,
+            new com.google.protobuf.Descriptors.FileDescriptor[] {
+              com.google.api.FieldBehaviorProto.getDescriptor(),
+              com.google.api.AnnotationsProto.getDescriptor(),
+            });
+    com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.api.AnnotationsProto.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetAgentRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetAgentRequest.java
new file mode 100644
index 000000000..222abad8b
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetAgentRequest.java
@@ -0,0 +1,658 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Agents.GetAgent][google.cloud.dialogflow.cx.v3beta1.Agents.GetAgent].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.GetAgentRequest}
+ */
+public final class GetAgentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.GetAgentRequest)
+    GetAgentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use GetAgentRequest.newBuilder() to construct.
+  private GetAgentRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private GetAgentRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new GetAgentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private GetAgentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_GetAgentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_GetAgentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the agent.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the agent.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Agents.GetAgent][google.cloud.dialogflow.cx.v3beta1.Agents.GetAgent].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.GetAgentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.GetAgentRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetAgentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetAgentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetAgentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the agent.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the agent.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the agent.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the agent.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the agent.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.GetAgentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.GetAgentRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GetAgentRequest> PARSER =
+      new com.google.protobuf.AbstractParser<GetAgentRequest>() {
+        @java.lang.Override
+        public GetAgentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new GetAgentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<GetAgentRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GetAgentRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.GetAgentRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetAgentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetAgentRequestOrBuilder.java
new file mode 100644
index 000000000..384a1eb6c
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetAgentRequestOrBuilder.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface GetAgentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.GetAgentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the agent.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the agent.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetEntityTypeRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetEntityTypeRequest.java
new file mode 100644
index 000000000..cfe896b79
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetEntityTypeRequest.java
@@ -0,0 +1,907 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [EntityTypes.GetEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.GetEntityType].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest}
+ */
+public final class GetEntityTypeRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest)
+    GetEntityTypeRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use GetEntityTypeRequest.newBuilder() to construct.
+  private GetEntityTypeRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private GetEntityTypeRequest() {
+    name_ = "";
+    languageCode_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new GetEntityTypeRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private GetEntityTypeRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              languageCode_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_GetEntityTypeRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_GetEntityTypeRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the entity type.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the entity type.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int LANGUAGE_CODE_FIELD_NUMBER = 2;
+  private volatile java.lang.Object languageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * The language to retrieve the entity type for. The following fields are
+   * language dependent:
+   * *   `EntityType.entities.value`
+   * *   `EntityType.entities.synonyms`
+   * *   `EntityType.excluded_phrases.value`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The languageCode.
+   */
+  @java.lang.Override
+  public java.lang.String getLanguageCode() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      languageCode_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The language to retrieve the entity type for. The following fields are
+   * language dependent:
+   * *   `EntityType.entities.value`
+   * *   `EntityType.entities.synonyms`
+   * *   `EntityType.excluded_phrases.value`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getLanguageCodeBytes() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      languageCode_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, languageCode_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, languageCode_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!getLanguageCode().equals(other.getLanguageCode())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
+    hash = (53 * hash) + getLanguageCode().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [EntityTypes.GetEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.GetEntityType].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetEntityTypeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetEntityTypeRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      languageCode_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetEntityTypeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest(this);
+      result.name_ = name_;
+      result.languageCode_ = languageCode_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the entity type.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the entity type.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the entity type.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the entity type.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the entity type.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The language to retrieve the entity type for. The following fields are
+     * language dependent:
+     * *   `EntityType.entities.value`
+     * *   `EntityType.entities.synonyms`
+     * *   `EntityType.excluded_phrases.value`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to retrieve the entity type for. The following fields are
+     * language dependent:
+     * *   `EntityType.entities.value`
+     * *   `EntityType.entities.synonyms`
+     * *   `EntityType.excluded_phrases.value`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to retrieve the entity type for. The following fields are
+     * language dependent:
+     * *   `EntityType.entities.value`
+     * *   `EntityType.entities.synonyms`
+     * *   `EntityType.excluded_phrases.value`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to retrieve the entity type for. The following fields are
+     * language dependent:
+     * *   `EntityType.entities.value`
+     * *   `EntityType.entities.synonyms`
+     * *   `EntityType.excluded_phrases.value`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to retrieve the entity type for. The following fields are
+     * language dependent:
+     * *   `EntityType.entities.value`
+     * *   `EntityType.entities.synonyms`
+     * *   `EntityType.excluded_phrases.value`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GetEntityTypeRequest> PARSER =
+      new com.google.protobuf.AbstractParser<GetEntityTypeRequest>() {
+        @java.lang.Override
+        public GetEntityTypeRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new GetEntityTypeRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<GetEntityTypeRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GetEntityTypeRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetEntityTypeRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetEntityTypeRequestOrBuilder.java
new file mode 100644
index 000000000..b5a372ff0
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetEntityTypeRequestOrBuilder.java
@@ -0,0 +1,101 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface GetEntityTypeRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.GetEntityTypeRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the entity type.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the entity type.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The language to retrieve the entity type for. The following fields are
+   * language dependent:
+   * *   `EntityType.entities.value`
+   * *   `EntityType.entities.synonyms`
+   * *   `EntityType.excluded_phrases.value`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * The language to retrieve the entity type for. The following fields are
+   * language dependent:
+   * *   `EntityType.entities.value`
+   * *   `EntityType.entities.synonyms`
+   * *   `EntityType.excluded_phrases.value`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetEnvironmentRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetEnvironmentRequest.java
new file mode 100644
index 000000000..891cb9903
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetEnvironmentRequest.java
@@ -0,0 +1,668 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/environment.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Environments.GetEnvironment][google.cloud.dialogflow.cx.v3beta1.Environments.GetEnvironment].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest}
+ */
+public final class GetEnvironmentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest)
+    GetEnvironmentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use GetEnvironmentRequest.newBuilder() to construct.
+  private GetEnvironmentRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private GetEnvironmentRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new GetEnvironmentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private GetEnvironmentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_GetEnvironmentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_GetEnvironmentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/environments/&lt;Environment ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/environments/&lt;Environment ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
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+      name_ = b;
+      return b;
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+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
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+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Environments.GetEnvironment][google.cloud.dialogflow.cx.v3beta1.Environments.GetEnvironment].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetEnvironmentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetEnvironmentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetEnvironmentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/environments/&lt;Environment ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/environments/&lt;Environment ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/environments/&lt;Environment ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/environments/&lt;Environment ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/environments/&lt;Environment ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GetEnvironmentRequest> PARSER =
+      new com.google.protobuf.AbstractParser<GetEnvironmentRequest>() {
+        @java.lang.Override
+        public GetEnvironmentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new GetEnvironmentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<GetEnvironmentRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GetEnvironmentRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetEnvironmentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetEnvironmentRequestOrBuilder.java
new file mode 100644
index 000000000..5fe79ed64
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetEnvironmentRequestOrBuilder.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/environment.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface GetEnvironmentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.GetEnvironmentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/environments/&lt;Environment ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/environments/&lt;Environment ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetFlowRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetFlowRequest.java
new file mode 100644
index 000000000..c2595d2ff
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetFlowRequest.java
@@ -0,0 +1,900 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/flow.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The response message for [Flows.GetFlow][google.cloud.dialogflow.cx.v3beta1.Flows.GetFlow].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.GetFlowRequest}
+ */
+public final class GetFlowRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.GetFlowRequest)
+    GetFlowRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use GetFlowRequest.newBuilder() to construct.
+  private GetFlowRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private GetFlowRequest() {
+    name_ = "";
+    languageCode_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new GetFlowRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private GetFlowRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
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+        .internal_static_google_cloud_dialogflow_cx_v3beta1_GetFlowRequest_descriptor;
+  }
+
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+  /**
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+   *
+   * <pre>
+   * Required. The name of the flow to get.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
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+   *
+   *
+   * <pre>
+   * Required. The name of the flow to get.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
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+  private volatile java.lang.Object languageCode_;
+  /**
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+   *
+   * <pre>
+   * The language to retrieve the flow for. The following fields are language
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+   * *  `Flow.event_handlers.trigger_fulfillment.messages`
+   * *  `Flow.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
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+  public java.lang.String getLanguageCode() {
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+      return s;
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+  /**
+   *
+   *
+   * <pre>
+   * The language to retrieve the flow for. The following fields are language
+   * dependent:
+   * *  `Flow.event_handlers.trigger_fulfillment.messages`
+   * *  `Flow.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
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+   * @return The bytes for languageCode.
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+    if (ref instanceof java.lang.String) {
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+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, languageCode_);
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+    unknownFields.writeTo(output);
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+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
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+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!getLanguageCode().equals(other.getLanguageCode())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
+    hash = (53 * hash) + getLanguageCode().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
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+  public static com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The response message for [Flows.GetFlow][google.cloud.dialogflow.cx.v3beta1.Flows.GetFlow].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.GetFlowRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.GetFlowRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetFlowRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetFlowRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
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+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
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+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      languageCode_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetFlowRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest(this);
+      result.name_ = name_;
+      result.languageCode_ = languageCode_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
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+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
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+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
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+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
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+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
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+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the flow to get.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the flow to get.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
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+        name_ = b;
+        return b;
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+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the flow to get.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
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+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
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+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the flow to get.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the flow to get.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The language to retrieve the flow for. The following fields are language
+     * dependent:
+     * *  `Flow.event_handlers.trigger_fulfillment.messages`
+     * *  `Flow.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
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+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to retrieve the flow for. The following fields are language
+     * dependent:
+     * *  `Flow.event_handlers.trigger_fulfillment.messages`
+     * *  `Flow.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to retrieve the flow for. The following fields are language
+     * dependent:
+     * *  `Flow.event_handlers.trigger_fulfillment.messages`
+     * *  `Flow.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to retrieve the flow for. The following fields are language
+     * dependent:
+     * *  `Flow.event_handlers.trigger_fulfillment.messages`
+     * *  `Flow.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to retrieve the flow for. The following fields are language
+     * dependent:
+     * *  `Flow.event_handlers.trigger_fulfillment.messages`
+     * *  `Flow.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.GetFlowRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.GetFlowRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GetFlowRequest> PARSER =
+      new com.google.protobuf.AbstractParser<GetFlowRequest>() {
+        @java.lang.Override
+        public GetFlowRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new GetFlowRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<GetFlowRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GetFlowRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.GetFlowRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetFlowRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetFlowRequestOrBuilder.java
new file mode 100644
index 000000000..be6669976
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetFlowRequestOrBuilder.java
@@ -0,0 +1,99 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/flow.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface GetFlowRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.GetFlowRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the flow to get.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the flow to get.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The language to retrieve the flow for. The following fields are language
+   * dependent:
+   * *  `Flow.event_handlers.trigger_fulfillment.messages`
+   * *  `Flow.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * The language to retrieve the flow for. The following fields are language
+   * dependent:
+   * *  `Flow.event_handlers.trigger_fulfillment.messages`
+   * *  `Flow.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetIntentRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetIntentRequest.java
new file mode 100644
index 000000000..ab6929d58
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetIntentRequest.java
@@ -0,0 +1,893 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/intent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Intents.GetIntent][google.cloud.dialogflow.cx.v3beta1.Intents.GetIntent].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.GetIntentRequest}
+ */
+public final class GetIntentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.GetIntentRequest)
+    GetIntentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use GetIntentRequest.newBuilder() to construct.
+  private GetIntentRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private GetIntentRequest() {
+    name_ = "";
+    languageCode_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new GetIntentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private GetIntentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              languageCode_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_GetIntentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_GetIntentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the intent.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/intents/&lt;Intent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the intent.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/intents/&lt;Intent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int LANGUAGE_CODE_FIELD_NUMBER = 2;
+  private volatile java.lang.Object languageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * The language to retrieve the intent for. The following fields are language
+   * dependent:
+   * *   `Intent.training_phrases.parts.text`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The languageCode.
+   */
+  @java.lang.Override
+  public java.lang.String getLanguageCode() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      languageCode_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The language to retrieve the intent for. The following fields are language
+   * dependent:
+   * *   `Intent.training_phrases.parts.text`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getLanguageCodeBytes() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      languageCode_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, languageCode_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, languageCode_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!getLanguageCode().equals(other.getLanguageCode())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
+    hash = (53 * hash) + getLanguageCode().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Intents.GetIntent][google.cloud.dialogflow.cx.v3beta1.Intents.GetIntent].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.GetIntentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.GetIntentRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetIntentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetIntentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      languageCode_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetIntentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest(this);
+      result.name_ = name_;
+      result.languageCode_ = languageCode_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the intent.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the intent.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the intent.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the intent.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the intent.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The language to retrieve the intent for. The following fields are language
+     * dependent:
+     * *   `Intent.training_phrases.parts.text`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to retrieve the intent for. The following fields are language
+     * dependent:
+     * *   `Intent.training_phrases.parts.text`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to retrieve the intent for. The following fields are language
+     * dependent:
+     * *   `Intent.training_phrases.parts.text`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to retrieve the intent for. The following fields are language
+     * dependent:
+     * *   `Intent.training_phrases.parts.text`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to retrieve the intent for. The following fields are language
+     * dependent:
+     * *   `Intent.training_phrases.parts.text`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.GetIntentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.GetIntentRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GetIntentRequest> PARSER =
+      new com.google.protobuf.AbstractParser<GetIntentRequest>() {
+        @java.lang.Override
+        public GetIntentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new GetIntentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<GetIntentRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GetIntentRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.GetIntentRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetIntentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetIntentRequestOrBuilder.java
new file mode 100644
index 000000000..e962020ff
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetIntentRequestOrBuilder.java
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/intent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface GetIntentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.GetIntentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the intent.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/intents/&lt;Intent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the intent.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/intents/&lt;Intent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The language to retrieve the intent for. The following fields are language
+   * dependent:
+   * *   `Intent.training_phrases.parts.text`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * The language to retrieve the intent for. The following fields are language
+   * dependent:
+   * *   `Intent.training_phrases.parts.text`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetPageRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetPageRequest.java
new file mode 100644
index 000000000..5c86aabd1
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetPageRequest.java
@@ -0,0 +1,928 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/page.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Pages.GetPage][google.cloud.dialogflow.cx.v3beta1.Pages.GetPage].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.GetPageRequest}
+ */
+public final class GetPageRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.GetPageRequest)
+    GetPageRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use GetPageRequest.newBuilder() to construct.
+  private GetPageRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private GetPageRequest() {
+    name_ = "";
+    languageCode_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new GetPageRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private GetPageRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
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+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the page.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
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+      return s;
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+   *
+   * <pre>
+   * Required. The name of the page.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
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+   * @return The bytes for name.
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+  private volatile java.lang.Object languageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * The language to retrieve the page for. The following fields are language
+   * dependent:
+   * *  `Page.entry_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+   * *  `Page.transition_route.trigger_fulfillment.messages`
+   * *
+   * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
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+      languageCode_ = s;
+      return s;
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+  /**
+   *
+   *
+   * <pre>
+   * The language to retrieve the page for. The following fields are language
+   * dependent:
+   * *  `Page.entry_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+   * *  `Page.transition_route.trigger_fulfillment.messages`
+   * *
+   * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
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+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
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+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
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+    if (!getLanguageCodeBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, languageCode_);
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+    unknownFields.writeTo(output);
+  }
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+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
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+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
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+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!getLanguageCode().equals(other.getLanguageCode())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
+    hash = (53 * hash) + getLanguageCode().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
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+  public static com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Pages.GetPage][google.cloud.dialogflow.cx.v3beta1.Pages.GetPage].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.GetPageRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.GetPageRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.GetPageRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetPageRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetPageRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
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+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      languageCode_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetPageRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest(this);
+      result.name_ = name_;
+      result.languageCode_ = languageCode_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
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+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the page.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the page.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
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+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the page.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the page.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the page.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The language to retrieve the page for. The following fields are language
+     * dependent:
+     * *  `Page.entry_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+     * *  `Page.transition_route.trigger_fulfillment.messages`
+     * *
+     * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to retrieve the page for. The following fields are language
+     * dependent:
+     * *  `Page.entry_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+     * *  `Page.transition_route.trigger_fulfillment.messages`
+     * *
+     * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to retrieve the page for. The following fields are language
+     * dependent:
+     * *  `Page.entry_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+     * *  `Page.transition_route.trigger_fulfillment.messages`
+     * *
+     * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to retrieve the page for. The following fields are language
+     * dependent:
+     * *  `Page.entry_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+     * *  `Page.transition_route.trigger_fulfillment.messages`
+     * *
+     * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to retrieve the page for. The following fields are language
+     * dependent:
+     * *  `Page.entry_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+     * *  `Page.transition_route.trigger_fulfillment.messages`
+     * *
+     * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.GetPageRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.GetPageRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GetPageRequest> PARSER =
+      new com.google.protobuf.AbstractParser<GetPageRequest>() {
+        @java.lang.Override
+        public GetPageRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new GetPageRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<GetPageRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GetPageRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.GetPageRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetPageRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetPageRequestOrBuilder.java
new file mode 100644
index 000000000..28ae2bf8d
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetPageRequestOrBuilder.java
@@ -0,0 +1,107 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/page.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface GetPageRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.GetPageRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the page.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the page.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The language to retrieve the page for. The following fields are language
+   * dependent:
+   * *  `Page.entry_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+   * *  `Page.transition_route.trigger_fulfillment.messages`
+   * *
+   * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * The language to retrieve the page for. The following fields are language
+   * dependent:
+   * *  `Page.entry_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+   * *  `Page.transition_route.trigger_fulfillment.messages`
+   * *
+   * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetSessionEntityTypeRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetSessionEntityTypeRequest.java
new file mode 100644
index 000000000..a7b4433e1
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetSessionEntityTypeRequest.java
@@ -0,0 +1,676 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [SessionEntityTypes.GetSessionEntityType][google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes.GetSessionEntityType].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest}
+ */
+public final class GetSessionEntityTypeRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest)
+    GetSessionEntityTypeRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use GetSessionEntityTypeRequest.newBuilder() to construct.
+  private GetSessionEntityTypeRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private GetSessionEntityTypeRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new GetSessionEntityTypeRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private GetSessionEntityTypeRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_GetSessionEntityTypeRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_GetSessionEntityTypeRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the session entity type.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the session entity type.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest
+      parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest
+      parseDelimitedFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [SessionEntityTypes.GetSessionEntityType][google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes.GetSessionEntityType].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetSessionEntityTypeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetSessionEntityTypeRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest.Builder.class);
+    }
+
+    // Construct using
+    // com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetSessionEntityTypeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest
+          .getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest) {
+        return mergeFrom(
+            (com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest
+              .getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the session entity type.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the session entity type.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the session entity type.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the session entity type.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the session entity type.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GetSessionEntityTypeRequest> PARSER =
+      new com.google.protobuf.AbstractParser<GetSessionEntityTypeRequest>() {
+        @java.lang.Override
+        public GetSessionEntityTypeRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new GetSessionEntityTypeRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<GetSessionEntityTypeRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GetSessionEntityTypeRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetSessionEntityTypeRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetSessionEntityTypeRequestOrBuilder.java
new file mode 100644
index 000000000..d02e20f56
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetSessionEntityTypeRequestOrBuilder.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface GetSessionEntityTypeRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.GetSessionEntityTypeRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the session entity type.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the session entity type.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetTransitionRouteGroupRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetTransitionRouteGroupRequest.java
new file mode 100644
index 000000000..9c5ca089c
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetTransitionRouteGroupRequest.java
@@ -0,0 +1,905 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [TransitionRouteGroups.GetTransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.GetTransitionRouteGroup].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest}
+ */
+public final class GetTransitionRouteGroupRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest)
+    GetTransitionRouteGroupRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use GetTransitionRouteGroupRequest.newBuilder() to construct.
+  private GetTransitionRouteGroupRequest(
+      com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private GetTransitionRouteGroupRequest() {
+    name_ = "";
+    languageCode_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new GetTransitionRouteGroupRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private GetTransitionRouteGroupRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              languageCode_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_GetTransitionRouteGroupRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_GetTransitionRouteGroupRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int LANGUAGE_CODE_FIELD_NUMBER = 2;
+  private volatile java.lang.Object languageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * The language to list transition route groups for. The field
+   * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+   * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The languageCode.
+   */
+  @java.lang.Override
+  public java.lang.String getLanguageCode() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      languageCode_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The language to list transition route groups for. The field
+   * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+   * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getLanguageCodeBytes() {
+    java.lang.Object ref = languageCode_;
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+  public static com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest
+      parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest
+      parseDelimitedFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [TransitionRouteGroups.GetTransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.GetTransitionRouteGroup].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetTransitionRouteGroupRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetTransitionRouteGroupRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest.Builder.class);
+    }
+
+    // Construct using
+    // com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      languageCode_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetTransitionRouteGroupRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest
+          .getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest(this);
+      result.name_ = name_;
+      result.languageCode_ = languageCode_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest) {
+        return mergeFrom(
+            (com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest
+              .getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The language to list transition route groups for. The field
+     * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+     * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list transition route groups for. The field
+     * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+     * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
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+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list transition route groups for. The field
+     * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+     * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list transition route groups for. The field
+     * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+     * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list transition route groups for. The field
+     * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+     * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GetTransitionRouteGroupRequest> PARSER =
+      new com.google.protobuf.AbstractParser<GetTransitionRouteGroupRequest>() {
+        @java.lang.Override
+        public GetTransitionRouteGroupRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new GetTransitionRouteGroupRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<GetTransitionRouteGroupRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GetTransitionRouteGroupRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetTransitionRouteGroupRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetTransitionRouteGroupRequestOrBuilder.java
new file mode 100644
index 000000000..ac18f7ec6
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetTransitionRouteGroupRequestOrBuilder.java
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface GetTransitionRouteGroupRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.GetTransitionRouteGroupRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The language to list transition route groups for. The field
+   * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+   * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * The language to list transition route groups for. The field
+   * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+   * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetVersionRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetVersionRequest.java
new file mode 100644
index 000000000..a7593ad28
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetVersionRequest.java
@@ -0,0 +1,665 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/version.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Versions.GetVersion][google.cloud.dialogflow.cx.v3beta1.Versions.GetVersion].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.GetVersionRequest}
+ */
+public final class GetVersionRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.GetVersionRequest)
+    GetVersionRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use GetVersionRequest.newBuilder() to construct.
+  private GetVersionRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private GetVersionRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new GetVersionRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private GetVersionRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_GetVersionRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_GetVersionRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Versions.GetVersion][google.cloud.dialogflow.cx.v3beta1.Versions.GetVersion].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.GetVersionRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.GetVersionRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetVersionRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetVersionRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetVersionRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.GetVersionRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.GetVersionRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GetVersionRequest> PARSER =
+      new com.google.protobuf.AbstractParser<GetVersionRequest>() {
+        @java.lang.Override
+        public GetVersionRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new GetVersionRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<GetVersionRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GetVersionRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.GetVersionRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetVersionRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetVersionRequestOrBuilder.java
new file mode 100644
index 000000000..26e34869c
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetVersionRequestOrBuilder.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/version.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface GetVersionRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.GetVersionRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetWebhookRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetWebhookRequest.java
new file mode 100644
index 000000000..fad0e1648
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetWebhookRequest.java
@@ -0,0 +1,665 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Webhooks.GetWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.GetWebhook].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest}
+ */
+public final class GetWebhookRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest)
+    GetWebhookRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use GetWebhookRequest.newBuilder() to construct.
+  private GetWebhookRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private GetWebhookRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new GetWebhookRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private GetWebhookRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_GetWebhookRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_GetWebhookRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the webhook.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the webhook.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Webhooks.GetWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.GetWebhook].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetWebhookRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetWebhookRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_GetWebhookRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the webhook.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the webhook.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the webhook.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the webhook.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the webhook.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GetWebhookRequest> PARSER =
+      new com.google.protobuf.AbstractParser<GetWebhookRequest>() {
+        @java.lang.Override
+        public GetWebhookRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new GetWebhookRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<GetWebhookRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GetWebhookRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetWebhookRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetWebhookRequestOrBuilder.java
new file mode 100644
index 000000000..08ce1b755
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetWebhookRequestOrBuilder.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface GetWebhookRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.GetWebhookRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the webhook.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the webhook.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/InputAudioConfig.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/InputAudioConfig.java
new file mode 100644
index 000000000..40c7cb901
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/InputAudioConfig.java
@@ -0,0 +1,1698 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/audio_config.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Instructs the speech recognizer on how to process the audio content.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.InputAudioConfig}
+ */
+public final class InputAudioConfig extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.InputAudioConfig)
+    InputAudioConfigOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use InputAudioConfig.newBuilder() to construct.
+  private InputAudioConfig(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private InputAudioConfig() {
+    audioEncoding_ = 0;
+    phraseHints_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+    model_ = "";
+    modelVariant_ = 0;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new InputAudioConfig();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private InputAudioConfig(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 8:
+            {
+              int rawValue = input.readEnum();
+
+              audioEncoding_ = rawValue;
+              break;
+            }
+          case 16:
+            {
+              sampleRateHertz_ = input.readInt32();
+              break;
+            }
+          case 34:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                phraseHints_ = new com.google.protobuf.LazyStringArrayList();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              phraseHints_.add(s);
+              break;
+            }
+          case 58:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              model_ = s;
+              break;
+            }
+          case 64:
+            {
+              singleUtterance_ = input.readBool();
+              break;
+            }
+          case 80:
+            {
+              int rawValue = input.readEnum();
+
+              modelVariant_ = rawValue;
+              break;
+            }
+          case 104:
+            {
+              enableWordInfo_ = input.readBool();
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        phraseHints_ = phraseHints_.getUnmodifiableView();
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_InputAudioConfig_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_InputAudioConfig_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.class,
+            com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.Builder.class);
+  }
+
+  public static final int AUDIO_ENCODING_FIELD_NUMBER = 1;
+  private int audioEncoding_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. Audio encoding of the audio content to process.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.AudioEncoding audio_encoding = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The enum numeric value on the wire for audioEncoding.
+   */
+  @java.lang.Override
+  public int getAudioEncodingValue() {
+    return audioEncoding_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. Audio encoding of the audio content to process.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.AudioEncoding audio_encoding = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The audioEncoding.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding getAudioEncoding() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding result =
+        com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding.valueOf(audioEncoding_);
+    return result == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding.UNRECOGNIZED
+        : result;
+  }
+
+  public static final int SAMPLE_RATE_HERTZ_FIELD_NUMBER = 2;
+  private int sampleRateHertz_;
+  /**
+   *
+   *
+   * <pre>
+   * Sample rate (in Hertz) of the audio content sent in the query.
+   * Refer to
+   * [Cloud Speech API
+   * documentation](https://cloud.google.com/speech-to-text/docs/basics) for
+   * more details.
+   * </pre>
+   *
+   * <code>int32 sample_rate_hertz = 2;</code>
+   *
+   * @return The sampleRateHertz.
+   */
+  @java.lang.Override
+  public int getSampleRateHertz() {
+    return sampleRateHertz_;
+  }
+
+  public static final int ENABLE_WORD_INFO_FIELD_NUMBER = 13;
+  private boolean enableWordInfo_;
+  /**
+   *
+   *
+   * <pre>
+   * Optional. If `true`, Dialogflow returns [SpeechWordInfo][google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo] in
+   * [StreamingRecognitionResult][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult] with information about the recognized speech
+   * words, e.g. start and end time offsets. If false or unspecified, Speech
+   * doesn't return any word-level information.
+   * </pre>
+   *
+   * <code>bool enable_word_info = 13;</code>
+   *
+   * @return The enableWordInfo.
+   */
+  @java.lang.Override
+  public boolean getEnableWordInfo() {
+    return enableWordInfo_;
+  }
+
+  public static final int PHRASE_HINTS_FIELD_NUMBER = 4;
+  private com.google.protobuf.LazyStringList phraseHints_;
+  /**
+   *
+   *
+   * <pre>
+   * Optional. A list of strings containing words and phrases that the speech
+   * recognizer should recognize with higher likelihood.
+   * See [the Cloud Speech
+   * documentation](https://cloud.google.com/speech-to-text/docs/basics#phrase-hints)
+   * for more details.
+   * </pre>
+   *
+   * <code>repeated string phrase_hints = 4;</code>
+   *
+   * @return A list containing the phraseHints.
+   */
+  public com.google.protobuf.ProtocolStringList getPhraseHintsList() {
+    return phraseHints_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Optional. A list of strings containing words and phrases that the speech
+   * recognizer should recognize with higher likelihood.
+   * See [the Cloud Speech
+   * documentation](https://cloud.google.com/speech-to-text/docs/basics#phrase-hints)
+   * for more details.
+   * </pre>
+   *
+   * <code>repeated string phrase_hints = 4;</code>
+   *
+   * @return The count of phraseHints.
+   */
+  public int getPhraseHintsCount() {
+    return phraseHints_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Optional. A list of strings containing words and phrases that the speech
+   * recognizer should recognize with higher likelihood.
+   * See [the Cloud Speech
+   * documentation](https://cloud.google.com/speech-to-text/docs/basics#phrase-hints)
+   * for more details.
+   * </pre>
+   *
+   * <code>repeated string phrase_hints = 4;</code>
+   *
+   * @param index The index of the element to return.
+   * @return The phraseHints at the given index.
+   */
+  public java.lang.String getPhraseHints(int index) {
+    return phraseHints_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Optional. A list of strings containing words and phrases that the speech
+   * recognizer should recognize with higher likelihood.
+   * See [the Cloud Speech
+   * documentation](https://cloud.google.com/speech-to-text/docs/basics#phrase-hints)
+   * for more details.
+   * </pre>
+   *
+   * <code>repeated string phrase_hints = 4;</code>
+   *
+   * @param index The index of the value to return.
+   * @return The bytes of the phraseHints at the given index.
+   */
+  public com.google.protobuf.ByteString getPhraseHintsBytes(int index) {
+    return phraseHints_.getByteString(index);
+  }
+
+  public static final int MODEL_FIELD_NUMBER = 7;
+  private volatile java.lang.Object model_;
+  /**
+   *
+   *
+   * <pre>
+   * Optional. Which Speech model to select for the given request. Select the
+   * model best suited to your domain to get best results. If a model is not
+   * explicitly specified, then we auto-select a model based on the parameters
+   * in the InputAudioConfig.
+   * If enhanced speech model is enabled for the agent and an enhanced
+   * version of the specified model for the language does not exist, then the
+   * speech is recognized using the standard version of the specified model.
+   * Refer to
+   * [Cloud Speech API
+   * documentation](https://cloud.google.com/speech-to-text/docs/basics#select-model)
+   * for more details.
+   * </pre>
+   *
+   * <code>string model = 7;</code>
+   *
+   * @return The model.
+   */
+  @java.lang.Override
+  public java.lang.String getModel() {
+    java.lang.Object ref = model_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      model_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Optional. Which Speech model to select for the given request. Select the
+   * model best suited to your domain to get best results. If a model is not
+   * explicitly specified, then we auto-select a model based on the parameters
+   * in the InputAudioConfig.
+   * If enhanced speech model is enabled for the agent and an enhanced
+   * version of the specified model for the language does not exist, then the
+   * speech is recognized using the standard version of the specified model.
+   * Refer to
+   * [Cloud Speech API
+   * documentation](https://cloud.google.com/speech-to-text/docs/basics#select-model)
+   * for more details.
+   * </pre>
+   *
+   * <code>string model = 7;</code>
+   *
+   * @return The bytes for model.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getModelBytes() {
+    java.lang.Object ref = model_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      model_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int MODEL_VARIANT_FIELD_NUMBER = 10;
+  private int modelVariant_;
+  /**
+   *
+   *
+   * <pre>
+   * Optional. Which variant of the [Speech model][google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.model] to use.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant model_variant = 10;</code>
+   *
+   * @return The enum numeric value on the wire for modelVariant.
+   */
+  @java.lang.Override
+  public int getModelVariantValue() {
+    return modelVariant_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Optional. Which variant of the [Speech model][google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.model] to use.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant model_variant = 10;</code>
+   *
+   * @return The modelVariant.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant getModelVariant() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant result =
+        com.google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant.valueOf(modelVariant_);
+    return result == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant.UNRECOGNIZED
+        : result;
+  }
+
+  public static final int SINGLE_UTTERANCE_FIELD_NUMBER = 8;
+  private boolean singleUtterance_;
+  /**
+   *
+   *
+   * <pre>
+   * Optional. If `false` (default), recognition does not cease until the
+   * client closes the stream.
+   * If `true`, the recognizer will detect a single spoken utterance in input
+   * audio. Recognition ceases when it detects the audio's voice has
+   * stopped or paused. In this case, once a detected intent is received, the
+   * client should close the stream and start a new request with a new stream as
+   * needed.
+   * Note: This setting is relevant only for streaming methods.
+   * </pre>
+   *
+   * <code>bool single_utterance = 8;</code>
+   *
+   * @return The singleUtterance.
+   */
+  @java.lang.Override
+  public boolean getSingleUtterance() {
+    return singleUtterance_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (audioEncoding_
+        != com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding.AUDIO_ENCODING_UNSPECIFIED
+            .getNumber()) {
+      output.writeEnum(1, audioEncoding_);
+    }
+    if (sampleRateHertz_ != 0) {
+      output.writeInt32(2, sampleRateHertz_);
+    }
+    for (int i = 0; i < phraseHints_.size(); i++) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 4, phraseHints_.getRaw(i));
+    }
+    if (!getModelBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 7, model_);
+    }
+    if (singleUtterance_ != false) {
+      output.writeBool(8, singleUtterance_);
+    }
+    if (modelVariant_
+        != com.google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant
+            .SPEECH_MODEL_VARIANT_UNSPECIFIED
+            .getNumber()) {
+      output.writeEnum(10, modelVariant_);
+    }
+    if (enableWordInfo_ != false) {
+      output.writeBool(13, enableWordInfo_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (audioEncoding_
+        != com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding.AUDIO_ENCODING_UNSPECIFIED
+            .getNumber()) {
+      size += com.google.protobuf.CodedOutputStream.computeEnumSize(1, audioEncoding_);
+    }
+    if (sampleRateHertz_ != 0) {
+      size += com.google.protobuf.CodedOutputStream.computeInt32Size(2, sampleRateHertz_);
+    }
+    {
+      int dataSize = 0;
+      for (int i = 0; i < phraseHints_.size(); i++) {
+        dataSize += computeStringSizeNoTag(phraseHints_.getRaw(i));
+      }
+      size += dataSize;
+      size += 1 * getPhraseHintsList().size();
+    }
+    if (!getModelBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(7, model_);
+    }
+    if (singleUtterance_ != false) {
+      size += com.google.protobuf.CodedOutputStream.computeBoolSize(8, singleUtterance_);
+    }
+    if (modelVariant_
+        != com.google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant
+            .SPEECH_MODEL_VARIANT_UNSPECIFIED
+            .getNumber()) {
+      size += com.google.protobuf.CodedOutputStream.computeEnumSize(10, modelVariant_);
+    }
+    if (enableWordInfo_ != false) {
+      size += com.google.protobuf.CodedOutputStream.computeBoolSize(13, enableWordInfo_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig other =
+        (com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig) obj;
+
+    if (audioEncoding_ != other.audioEncoding_) return false;
+    if (getSampleRateHertz() != other.getSampleRateHertz()) return false;
+    if (getEnableWordInfo() != other.getEnableWordInfo()) return false;
+    if (!getPhraseHintsList().equals(other.getPhraseHintsList())) return false;
+    if (!getModel().equals(other.getModel())) return false;
+    if (modelVariant_ != other.modelVariant_) return false;
+    if (getSingleUtterance() != other.getSingleUtterance()) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + AUDIO_ENCODING_FIELD_NUMBER;
+    hash = (53 * hash) + audioEncoding_;
+    hash = (37 * hash) + SAMPLE_RATE_HERTZ_FIELD_NUMBER;
+    hash = (53 * hash) + getSampleRateHertz();
+    hash = (37 * hash) + ENABLE_WORD_INFO_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnableWordInfo());
+    if (getPhraseHintsCount() > 0) {
+      hash = (37 * hash) + PHRASE_HINTS_FIELD_NUMBER;
+      hash = (53 * hash) + getPhraseHintsList().hashCode();
+    }
+    hash = (37 * hash) + MODEL_FIELD_NUMBER;
+    hash = (53 * hash) + getModel().hashCode();
+    hash = (37 * hash) + MODEL_VARIANT_FIELD_NUMBER;
+    hash = (53 * hash) + modelVariant_;
+    hash = (37 * hash) + SINGLE_UTTERANCE_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getSingleUtterance());
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Instructs the speech recognizer on how to process the audio content.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.InputAudioConfig}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.InputAudioConfig)
+      com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfigOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_InputAudioConfig_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_InputAudioConfig_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.class,
+              com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      audioEncoding_ = 0;
+
+      sampleRateHertz_ = 0;
+
+      enableWordInfo_ = false;
+
+      phraseHints_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000001);
+      model_ = "";
+
+      modelVariant_ = 0;
+
+      singleUtterance_ = false;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_InputAudioConfig_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig build() {
+      com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig result =
+          new com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig(this);
+      int from_bitField0_ = bitField0_;
+      result.audioEncoding_ = audioEncoding_;
+      result.sampleRateHertz_ = sampleRateHertz_;
+      result.enableWordInfo_ = enableWordInfo_;
+      if (((bitField0_ & 0x00000001) != 0)) {
+        phraseHints_ = phraseHints_.getUnmodifiableView();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      }
+      result.phraseHints_ = phraseHints_;
+      result.model_ = model_;
+      result.modelVariant_ = modelVariant_;
+      result.singleUtterance_ = singleUtterance_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.getDefaultInstance())
+        return this;
+      if (other.audioEncoding_ != 0) {
+        setAudioEncodingValue(other.getAudioEncodingValue());
+      }
+      if (other.getSampleRateHertz() != 0) {
+        setSampleRateHertz(other.getSampleRateHertz());
+      }
+      if (other.getEnableWordInfo() != false) {
+        setEnableWordInfo(other.getEnableWordInfo());
+      }
+      if (!other.phraseHints_.isEmpty()) {
+        if (phraseHints_.isEmpty()) {
+          phraseHints_ = other.phraseHints_;
+          bitField0_ = (bitField0_ & ~0x00000001);
+        } else {
+          ensurePhraseHintsIsMutable();
+          phraseHints_.addAll(other.phraseHints_);
+        }
+        onChanged();
+      }
+      if (!other.getModel().isEmpty()) {
+        model_ = other.model_;
+        onChanged();
+      }
+      if (other.modelVariant_ != 0) {
+        setModelVariantValue(other.getModelVariantValue());
+      }
+      if (other.getSingleUtterance() != false) {
+        setSingleUtterance(other.getSingleUtterance());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private int audioEncoding_ = 0;
+    /**
+     *
+     *
+     * <pre>
+     * Required. Audio encoding of the audio content to process.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.AudioEncoding audio_encoding = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The enum numeric value on the wire for audioEncoding.
+     */
+    @java.lang.Override
+    public int getAudioEncodingValue() {
+      return audioEncoding_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Audio encoding of the audio content to process.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.AudioEncoding audio_encoding = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @param value The enum numeric value on the wire for audioEncoding to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAudioEncodingValue(int value) {
+
+      audioEncoding_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Audio encoding of the audio content to process.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.AudioEncoding audio_encoding = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The audioEncoding.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding getAudioEncoding() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding result =
+          com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding.valueOf(audioEncoding_);
+      return result == null
+          ? com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding.UNRECOGNIZED
+          : result;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Audio encoding of the audio content to process.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.AudioEncoding audio_encoding = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @param value The audioEncoding to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAudioEncoding(com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      audioEncoding_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Audio encoding of the audio content to process.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.AudioEncoding audio_encoding = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearAudioEncoding() {
+
+      audioEncoding_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private int sampleRateHertz_;
+    /**
+     *
+     *
+     * <pre>
+     * Sample rate (in Hertz) of the audio content sent in the query.
+     * Refer to
+     * [Cloud Speech API
+     * documentation](https://cloud.google.com/speech-to-text/docs/basics) for
+     * more details.
+     * </pre>
+     *
+     * <code>int32 sample_rate_hertz = 2;</code>
+     *
+     * @return The sampleRateHertz.
+     */
+    @java.lang.Override
+    public int getSampleRateHertz() {
+      return sampleRateHertz_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Sample rate (in Hertz) of the audio content sent in the query.
+     * Refer to
+     * [Cloud Speech API
+     * documentation](https://cloud.google.com/speech-to-text/docs/basics) for
+     * more details.
+     * </pre>
+     *
+     * <code>int32 sample_rate_hertz = 2;</code>
+     *
+     * @param value The sampleRateHertz to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSampleRateHertz(int value) {
+
+      sampleRateHertz_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Sample rate (in Hertz) of the audio content sent in the query.
+     * Refer to
+     * [Cloud Speech API
+     * documentation](https://cloud.google.com/speech-to-text/docs/basics) for
+     * more details.
+     * </pre>
+     *
+     * <code>int32 sample_rate_hertz = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearSampleRateHertz() {
+
+      sampleRateHertz_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private boolean enableWordInfo_;
+    /**
+     *
+     *
+     * <pre>
+     * Optional. If `true`, Dialogflow returns [SpeechWordInfo][google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo] in
+     * [StreamingRecognitionResult][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult] with information about the recognized speech
+     * words, e.g. start and end time offsets. If false or unspecified, Speech
+     * doesn't return any word-level information.
+     * </pre>
+     *
+     * <code>bool enable_word_info = 13;</code>
+     *
+     * @return The enableWordInfo.
+     */
+    @java.lang.Override
+    public boolean getEnableWordInfo() {
+      return enableWordInfo_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. If `true`, Dialogflow returns [SpeechWordInfo][google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo] in
+     * [StreamingRecognitionResult][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult] with information about the recognized speech
+     * words, e.g. start and end time offsets. If false or unspecified, Speech
+     * doesn't return any word-level information.
+     * </pre>
+     *
+     * <code>bool enable_word_info = 13;</code>
+     *
+     * @param value The enableWordInfo to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEnableWordInfo(boolean value) {
+
+      enableWordInfo_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. If `true`, Dialogflow returns [SpeechWordInfo][google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo] in
+     * [StreamingRecognitionResult][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult] with information about the recognized speech
+     * words, e.g. start and end time offsets. If false or unspecified, Speech
+     * doesn't return any word-level information.
+     * </pre>
+     *
+     * <code>bool enable_word_info = 13;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearEnableWordInfo() {
+
+      enableWordInfo_ = false;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.LazyStringList phraseHints_ =
+        com.google.protobuf.LazyStringArrayList.EMPTY;
+
+    private void ensurePhraseHintsIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        phraseHints_ = new com.google.protobuf.LazyStringArrayList(phraseHints_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. A list of strings containing words and phrases that the speech
+     * recognizer should recognize with higher likelihood.
+     * See [the Cloud Speech
+     * documentation](https://cloud.google.com/speech-to-text/docs/basics#phrase-hints)
+     * for more details.
+     * </pre>
+     *
+     * <code>repeated string phrase_hints = 4;</code>
+     *
+     * @return A list containing the phraseHints.
+     */
+    public com.google.protobuf.ProtocolStringList getPhraseHintsList() {
+      return phraseHints_.getUnmodifiableView();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. A list of strings containing words and phrases that the speech
+     * recognizer should recognize with higher likelihood.
+     * See [the Cloud Speech
+     * documentation](https://cloud.google.com/speech-to-text/docs/basics#phrase-hints)
+     * for more details.
+     * </pre>
+     *
+     * <code>repeated string phrase_hints = 4;</code>
+     *
+     * @return The count of phraseHints.
+     */
+    public int getPhraseHintsCount() {
+      return phraseHints_.size();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. A list of strings containing words and phrases that the speech
+     * recognizer should recognize with higher likelihood.
+     * See [the Cloud Speech
+     * documentation](https://cloud.google.com/speech-to-text/docs/basics#phrase-hints)
+     * for more details.
+     * </pre>
+     *
+     * <code>repeated string phrase_hints = 4;</code>
+     *
+     * @param index The index of the element to return.
+     * @return The phraseHints at the given index.
+     */
+    public java.lang.String getPhraseHints(int index) {
+      return phraseHints_.get(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. A list of strings containing words and phrases that the speech
+     * recognizer should recognize with higher likelihood.
+     * See [the Cloud Speech
+     * documentation](https://cloud.google.com/speech-to-text/docs/basics#phrase-hints)
+     * for more details.
+     * </pre>
+     *
+     * <code>repeated string phrase_hints = 4;</code>
+     *
+     * @param index The index of the value to return.
+     * @return The bytes of the phraseHints at the given index.
+     */
+    public com.google.protobuf.ByteString getPhraseHintsBytes(int index) {
+      return phraseHints_.getByteString(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. A list of strings containing words and phrases that the speech
+     * recognizer should recognize with higher likelihood.
+     * See [the Cloud Speech
+     * documentation](https://cloud.google.com/speech-to-text/docs/basics#phrase-hints)
+     * for more details.
+     * </pre>
+     *
+     * <code>repeated string phrase_hints = 4;</code>
+     *
+     * @param index The index to set the value at.
+     * @param value The phraseHints to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPhraseHints(int index, java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      ensurePhraseHintsIsMutable();
+      phraseHints_.set(index, value);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. A list of strings containing words and phrases that the speech
+     * recognizer should recognize with higher likelihood.
+     * See [the Cloud Speech
+     * documentation](https://cloud.google.com/speech-to-text/docs/basics#phrase-hints)
+     * for more details.
+     * </pre>
+     *
+     * <code>repeated string phrase_hints = 4;</code>
+     *
+     * @param value The phraseHints to add.
+     * @return This builder for chaining.
+     */
+    public Builder addPhraseHints(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      ensurePhraseHintsIsMutable();
+      phraseHints_.add(value);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. A list of strings containing words and phrases that the speech
+     * recognizer should recognize with higher likelihood.
+     * See [the Cloud Speech
+     * documentation](https://cloud.google.com/speech-to-text/docs/basics#phrase-hints)
+     * for more details.
+     * </pre>
+     *
+     * <code>repeated string phrase_hints = 4;</code>
+     *
+     * @param values The phraseHints to add.
+     * @return This builder for chaining.
+     */
+    public Builder addAllPhraseHints(java.lang.Iterable<java.lang.String> values) {
+      ensurePhraseHintsIsMutable();
+      com.google.protobuf.AbstractMessageLite.Builder.addAll(values, phraseHints_);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. A list of strings containing words and phrases that the speech
+     * recognizer should recognize with higher likelihood.
+     * See [the Cloud Speech
+     * documentation](https://cloud.google.com/speech-to-text/docs/basics#phrase-hints)
+     * for more details.
+     * </pre>
+     *
+     * <code>repeated string phrase_hints = 4;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPhraseHints() {
+      phraseHints_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000001);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. A list of strings containing words and phrases that the speech
+     * recognizer should recognize with higher likelihood.
+     * See [the Cloud Speech
+     * documentation](https://cloud.google.com/speech-to-text/docs/basics#phrase-hints)
+     * for more details.
+     * </pre>
+     *
+     * <code>repeated string phrase_hints = 4;</code>
+     *
+     * @param value The bytes of the phraseHints to add.
+     * @return This builder for chaining.
+     */
+    public Builder addPhraseHintsBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      ensurePhraseHintsIsMutable();
+      phraseHints_.add(value);
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object model_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Which Speech model to select for the given request. Select the
+     * model best suited to your domain to get best results. If a model is not
+     * explicitly specified, then we auto-select a model based on the parameters
+     * in the InputAudioConfig.
+     * If enhanced speech model is enabled for the agent and an enhanced
+     * version of the specified model for the language does not exist, then the
+     * speech is recognized using the standard version of the specified model.
+     * Refer to
+     * [Cloud Speech API
+     * documentation](https://cloud.google.com/speech-to-text/docs/basics#select-model)
+     * for more details.
+     * </pre>
+     *
+     * <code>string model = 7;</code>
+     *
+     * @return The model.
+     */
+    public java.lang.String getModel() {
+      java.lang.Object ref = model_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        model_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Which Speech model to select for the given request. Select the
+     * model best suited to your domain to get best results. If a model is not
+     * explicitly specified, then we auto-select a model based on the parameters
+     * in the InputAudioConfig.
+     * If enhanced speech model is enabled for the agent and an enhanced
+     * version of the specified model for the language does not exist, then the
+     * speech is recognized using the standard version of the specified model.
+     * Refer to
+     * [Cloud Speech API
+     * documentation](https://cloud.google.com/speech-to-text/docs/basics#select-model)
+     * for more details.
+     * </pre>
+     *
+     * <code>string model = 7;</code>
+     *
+     * @return The bytes for model.
+     */
+    public com.google.protobuf.ByteString getModelBytes() {
+      java.lang.Object ref = model_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        model_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Which Speech model to select for the given request. Select the
+     * model best suited to your domain to get best results. If a model is not
+     * explicitly specified, then we auto-select a model based on the parameters
+     * in the InputAudioConfig.
+     * If enhanced speech model is enabled for the agent and an enhanced
+     * version of the specified model for the language does not exist, then the
+     * speech is recognized using the standard version of the specified model.
+     * Refer to
+     * [Cloud Speech API
+     * documentation](https://cloud.google.com/speech-to-text/docs/basics#select-model)
+     * for more details.
+     * </pre>
+     *
+     * <code>string model = 7;</code>
+     *
+     * @param value The model to set.
+     * @return This builder for chaining.
+     */
+    public Builder setModel(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      model_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Which Speech model to select for the given request. Select the
+     * model best suited to your domain to get best results. If a model is not
+     * explicitly specified, then we auto-select a model based on the parameters
+     * in the InputAudioConfig.
+     * If enhanced speech model is enabled for the agent and an enhanced
+     * version of the specified model for the language does not exist, then the
+     * speech is recognized using the standard version of the specified model.
+     * Refer to
+     * [Cloud Speech API
+     * documentation](https://cloud.google.com/speech-to-text/docs/basics#select-model)
+     * for more details.
+     * </pre>
+     *
+     * <code>string model = 7;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearModel() {
+
+      model_ = getDefaultInstance().getModel();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Which Speech model to select for the given request. Select the
+     * model best suited to your domain to get best results. If a model is not
+     * explicitly specified, then we auto-select a model based on the parameters
+     * in the InputAudioConfig.
+     * If enhanced speech model is enabled for the agent and an enhanced
+     * version of the specified model for the language does not exist, then the
+     * speech is recognized using the standard version of the specified model.
+     * Refer to
+     * [Cloud Speech API
+     * documentation](https://cloud.google.com/speech-to-text/docs/basics#select-model)
+     * for more details.
+     * </pre>
+     *
+     * <code>string model = 7;</code>
+     *
+     * @param value The bytes for model to set.
+     * @return This builder for chaining.
+     */
+    public Builder setModelBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      model_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int modelVariant_ = 0;
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Which variant of the [Speech model][google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.model] to use.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant model_variant = 10;</code>
+     *
+     * @return The enum numeric value on the wire for modelVariant.
+     */
+    @java.lang.Override
+    public int getModelVariantValue() {
+      return modelVariant_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Which variant of the [Speech model][google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.model] to use.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant model_variant = 10;</code>
+     *
+     * @param value The enum numeric value on the wire for modelVariant to set.
+     * @return This builder for chaining.
+     */
+    public Builder setModelVariantValue(int value) {
+
+      modelVariant_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Which variant of the [Speech model][google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.model] to use.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant model_variant = 10;</code>
+     *
+     * @return The modelVariant.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant getModelVariant() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant result =
+          com.google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant.valueOf(modelVariant_);
+      return result == null
+          ? com.google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant.UNRECOGNIZED
+          : result;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Which variant of the [Speech model][google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.model] to use.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant model_variant = 10;</code>
+     *
+     * @param value The modelVariant to set.
+     * @return This builder for chaining.
+     */
+    public Builder setModelVariant(
+        com.google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      modelVariant_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Which variant of the [Speech model][google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.model] to use.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant model_variant = 10;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearModelVariant() {
+
+      modelVariant_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private boolean singleUtterance_;
+    /**
+     *
+     *
+     * <pre>
+     * Optional. If `false` (default), recognition does not cease until the
+     * client closes the stream.
+     * If `true`, the recognizer will detect a single spoken utterance in input
+     * audio. Recognition ceases when it detects the audio's voice has
+     * stopped or paused. In this case, once a detected intent is received, the
+     * client should close the stream and start a new request with a new stream as
+     * needed.
+     * Note: This setting is relevant only for streaming methods.
+     * </pre>
+     *
+     * <code>bool single_utterance = 8;</code>
+     *
+     * @return The singleUtterance.
+     */
+    @java.lang.Override
+    public boolean getSingleUtterance() {
+      return singleUtterance_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. If `false` (default), recognition does not cease until the
+     * client closes the stream.
+     * If `true`, the recognizer will detect a single spoken utterance in input
+     * audio. Recognition ceases when it detects the audio's voice has
+     * stopped or paused. In this case, once a detected intent is received, the
+     * client should close the stream and start a new request with a new stream as
+     * needed.
+     * Note: This setting is relevant only for streaming methods.
+     * </pre>
+     *
+     * <code>bool single_utterance = 8;</code>
+     *
+     * @param value The singleUtterance to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSingleUtterance(boolean value) {
+
+      singleUtterance_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. If `false` (default), recognition does not cease until the
+     * client closes the stream.
+     * If `true`, the recognizer will detect a single spoken utterance in input
+     * audio. Recognition ceases when it detects the audio's voice has
+     * stopped or paused. In this case, once a detected intent is received, the
+     * client should close the stream and start a new request with a new stream as
+     * needed.
+     * Note: This setting is relevant only for streaming methods.
+     * </pre>
+     *
+     * <code>bool single_utterance = 8;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearSingleUtterance() {
+
+      singleUtterance_ = false;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.InputAudioConfig)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.InputAudioConfig)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<InputAudioConfig> PARSER =
+      new com.google.protobuf.AbstractParser<InputAudioConfig>() {
+        @java.lang.Override
+        public InputAudioConfig parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new InputAudioConfig(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<InputAudioConfig> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<InputAudioConfig> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.InputAudioConfig getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/InputAudioConfigOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/InputAudioConfigOrBuilder.java
new file mode 100644
index 000000000..c01a08850
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/InputAudioConfigOrBuilder.java
@@ -0,0 +1,244 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/audio_config.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface InputAudioConfigOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.InputAudioConfig)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. Audio encoding of the audio content to process.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.AudioEncoding audio_encoding = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The enum numeric value on the wire for audioEncoding.
+   */
+  int getAudioEncodingValue();
+  /**
+   *
+   *
+   * <pre>
+   * Required. Audio encoding of the audio content to process.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.AudioEncoding audio_encoding = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The audioEncoding.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding getAudioEncoding();
+
+  /**
+   *
+   *
+   * <pre>
+   * Sample rate (in Hertz) of the audio content sent in the query.
+   * Refer to
+   * [Cloud Speech API
+   * documentation](https://cloud.google.com/speech-to-text/docs/basics) for
+   * more details.
+   * </pre>
+   *
+   * <code>int32 sample_rate_hertz = 2;</code>
+   *
+   * @return The sampleRateHertz.
+   */
+  int getSampleRateHertz();
+
+  /**
+   *
+   *
+   * <pre>
+   * Optional. If `true`, Dialogflow returns [SpeechWordInfo][google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo] in
+   * [StreamingRecognitionResult][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult] with information about the recognized speech
+   * words, e.g. start and end time offsets. If false or unspecified, Speech
+   * doesn't return any word-level information.
+   * </pre>
+   *
+   * <code>bool enable_word_info = 13;</code>
+   *
+   * @return The enableWordInfo.
+   */
+  boolean getEnableWordInfo();
+
+  /**
+   *
+   *
+   * <pre>
+   * Optional. A list of strings containing words and phrases that the speech
+   * recognizer should recognize with higher likelihood.
+   * See [the Cloud Speech
+   * documentation](https://cloud.google.com/speech-to-text/docs/basics#phrase-hints)
+   * for more details.
+   * </pre>
+   *
+   * <code>repeated string phrase_hints = 4;</code>
+   *
+   * @return A list containing the phraseHints.
+   */
+  java.util.List<java.lang.String> getPhraseHintsList();
+  /**
+   *
+   *
+   * <pre>
+   * Optional. A list of strings containing words and phrases that the speech
+   * recognizer should recognize with higher likelihood.
+   * See [the Cloud Speech
+   * documentation](https://cloud.google.com/speech-to-text/docs/basics#phrase-hints)
+   * for more details.
+   * </pre>
+   *
+   * <code>repeated string phrase_hints = 4;</code>
+   *
+   * @return The count of phraseHints.
+   */
+  int getPhraseHintsCount();
+  /**
+   *
+   *
+   * <pre>
+   * Optional. A list of strings containing words and phrases that the speech
+   * recognizer should recognize with higher likelihood.
+   * See [the Cloud Speech
+   * documentation](https://cloud.google.com/speech-to-text/docs/basics#phrase-hints)
+   * for more details.
+   * </pre>
+   *
+   * <code>repeated string phrase_hints = 4;</code>
+   *
+   * @param index The index of the element to return.
+   * @return The phraseHints at the given index.
+   */
+  java.lang.String getPhraseHints(int index);
+  /**
+   *
+   *
+   * <pre>
+   * Optional. A list of strings containing words and phrases that the speech
+   * recognizer should recognize with higher likelihood.
+   * See [the Cloud Speech
+   * documentation](https://cloud.google.com/speech-to-text/docs/basics#phrase-hints)
+   * for more details.
+   * </pre>
+   *
+   * <code>repeated string phrase_hints = 4;</code>
+   *
+   * @param index The index of the value to return.
+   * @return The bytes of the phraseHints at the given index.
+   */
+  com.google.protobuf.ByteString getPhraseHintsBytes(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * Optional. Which Speech model to select for the given request. Select the
+   * model best suited to your domain to get best results. If a model is not
+   * explicitly specified, then we auto-select a model based on the parameters
+   * in the InputAudioConfig.
+   * If enhanced speech model is enabled for the agent and an enhanced
+   * version of the specified model for the language does not exist, then the
+   * speech is recognized using the standard version of the specified model.
+   * Refer to
+   * [Cloud Speech API
+   * documentation](https://cloud.google.com/speech-to-text/docs/basics#select-model)
+   * for more details.
+   * </pre>
+   *
+   * <code>string model = 7;</code>
+   *
+   * @return The model.
+   */
+  java.lang.String getModel();
+  /**
+   *
+   *
+   * <pre>
+   * Optional. Which Speech model to select for the given request. Select the
+   * model best suited to your domain to get best results. If a model is not
+   * explicitly specified, then we auto-select a model based on the parameters
+   * in the InputAudioConfig.
+   * If enhanced speech model is enabled for the agent and an enhanced
+   * version of the specified model for the language does not exist, then the
+   * speech is recognized using the standard version of the specified model.
+   * Refer to
+   * [Cloud Speech API
+   * documentation](https://cloud.google.com/speech-to-text/docs/basics#select-model)
+   * for more details.
+   * </pre>
+   *
+   * <code>string model = 7;</code>
+   *
+   * @return The bytes for model.
+   */
+  com.google.protobuf.ByteString getModelBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Optional. Which variant of the [Speech model][google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.model] to use.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant model_variant = 10;</code>
+   *
+   * @return The enum numeric value on the wire for modelVariant.
+   */
+  int getModelVariantValue();
+  /**
+   *
+   *
+   * <pre>
+   * Optional. Which variant of the [Speech model][google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.model] to use.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant model_variant = 10;</code>
+   *
+   * @return The modelVariant.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant getModelVariant();
+
+  /**
+   *
+   *
+   * <pre>
+   * Optional. If `false` (default), recognition does not cease until the
+   * client closes the stream.
+   * If `true`, the recognizer will detect a single spoken utterance in input
+   * audio. Recognition ceases when it detects the audio's voice has
+   * stopped or paused. In this case, once a detected intent is received, the
+   * client should close the stream and start a new request with a new stream as
+   * needed.
+   * Note: This setting is relevant only for streaming methods.
+   * </pre>
+   *
+   * <code>bool single_utterance = 8;</code>
+   *
+   * @return The singleUtterance.
+   */
+  boolean getSingleUtterance();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Intent.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Intent.java
new file mode 100644
index 000000000..8ae7089aa
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Intent.java
@@ -0,0 +1,5825 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/intent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * An intent represents a user's intent to interact with a conversational agent.
+ * You can provide information for the Dialogflow API to use to match user input
+ * to an intent by adding training phrases (i.e., examples of user input) to
+ * your intent.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Intent}
+ */
+public final class Intent extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.Intent)
+    IntentOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use Intent.newBuilder() to construct.
+  private Intent(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private Intent() {
+    name_ = "";
+    displayName_ = "";
+    trainingPhrases_ = java.util.Collections.emptyList();
+    parameters_ = java.util.Collections.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new Intent();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private Intent(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              displayName_ = s;
+              break;
+            }
+          case 26:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                trainingPhrases_ =
+                    new java.util.ArrayList<
+                        com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              trainingPhrases_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.parser(),
+                      extensionRegistry));
+              break;
+            }
+          case 34:
+            {
+              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
+                parameters_ =
+                    new java.util.ArrayList<
+                        com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter>();
+                mutable_bitField0_ |= 0x00000002;
+              }
+              parameters_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter.parser(),
+                      extensionRegistry));
+              break;
+            }
+          case 40:
+            {
+              priority_ = input.readInt32();
+              break;
+            }
+          case 48:
+            {
+              isFallback_ = input.readBool();
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        trainingPhrases_ = java.util.Collections.unmodifiableList(trainingPhrases_);
+      }
+      if (((mutable_bitField0_ & 0x00000002) != 0)) {
+        parameters_ = java.util.Collections.unmodifiableList(parameters_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.class,
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder.class);
+  }
+
+  public interface TrainingPhraseOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of the training phrase.
+     * </pre>
+     *
+     * <code>string id = 1;</code>
+     *
+     * @return The id.
+     */
+    java.lang.String getId();
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of the training phrase.
+     * </pre>
+     *
+     * <code>string id = 1;</code>
+     *
+     * @return The bytes for id.
+     */
+    com.google.protobuf.ByteString getIdBytes();
+
+    /**
+     *
+     *
+     * <pre>
+     * Required. The ordered list of training phrase parts.
+     * The parts are concatenated in order to form the training phrase.
+     * Note: The API does not automatically annotate training phrases like the
+     * Dialogflow Console does.
+     * Note: Do not forget to include whitespace at part boundaries, so the
+     * training phrase is well formatted when the parts are concatenated.
+     * If the training phrase does not need to be annotated with parameters,
+     * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+     * If you want to annotate the training phrase, you must create multiple
+     * parts, where the fields of each part are populated in one of two ways:
+     * -   `Part.text` is set to a part of the phrase that has no parameters.
+     * -   `Part.text` is set to a part of the phrase that you want to annotate,
+     *     and the `parameter_id` field is set.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part>
+        getPartsList();
+    /**
+     *
+     *
+     * <pre>
+     * Required. The ordered list of training phrase parts.
+     * The parts are concatenated in order to form the training phrase.
+     * Note: The API does not automatically annotate training phrases like the
+     * Dialogflow Console does.
+     * Note: Do not forget to include whitespace at part boundaries, so the
+     * training phrase is well formatted when the parts are concatenated.
+     * If the training phrase does not need to be annotated with parameters,
+     * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+     * If you want to annotate the training phrase, you must create multiple
+     * parts, where the fields of each part are populated in one of two ways:
+     * -   `Part.text` is set to a part of the phrase that has no parameters.
+     * -   `Part.text` is set to a part of the phrase that you want to annotate,
+     *     and the `parameter_id` field is set.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part getParts(int index);
+    /**
+     *
+     *
+     * <pre>
+     * Required. The ordered list of training phrase parts.
+     * The parts are concatenated in order to form the training phrase.
+     * Note: The API does not automatically annotate training phrases like the
+     * Dialogflow Console does.
+     * Note: Do not forget to include whitespace at part boundaries, so the
+     * training phrase is well formatted when the parts are concatenated.
+     * If the training phrase does not need to be annotated with parameters,
+     * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+     * If you want to annotate the training phrase, you must create multiple
+     * parts, where the fields of each part are populated in one of two ways:
+     * -   `Part.text` is set to a part of the phrase that has no parameters.
+     * -   `Part.text` is set to a part of the phrase that you want to annotate,
+     *     and the `parameter_id` field is set.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    int getPartsCount();
+    /**
+     *
+     *
+     * <pre>
+     * Required. The ordered list of training phrase parts.
+     * The parts are concatenated in order to form the training phrase.
+     * Note: The API does not automatically annotate training phrases like the
+     * Dialogflow Console does.
+     * Note: Do not forget to include whitespace at part boundaries, so the
+     * training phrase is well formatted when the parts are concatenated.
+     * If the training phrase does not need to be annotated with parameters,
+     * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+     * If you want to annotate the training phrase, you must create multiple
+     * parts, where the fields of each part are populated in one of two ways:
+     * -   `Part.text` is set to a part of the phrase that has no parameters.
+     * -   `Part.text` is set to a part of the phrase that you want to annotate,
+     *     and the `parameter_id` field is set.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    java.util.List<
+            ? extends com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.PartOrBuilder>
+        getPartsOrBuilderList();
+    /**
+     *
+     *
+     * <pre>
+     * Required. The ordered list of training phrase parts.
+     * The parts are concatenated in order to form the training phrase.
+     * Note: The API does not automatically annotate training phrases like the
+     * Dialogflow Console does.
+     * Note: Do not forget to include whitespace at part boundaries, so the
+     * training phrase is well formatted when the parts are concatenated.
+     * If the training phrase does not need to be annotated with parameters,
+     * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+     * If you want to annotate the training phrase, you must create multiple
+     * parts, where the fields of each part are populated in one of two ways:
+     * -   `Part.text` is set to a part of the phrase that has no parameters.
+     * -   `Part.text` is set to a part of the phrase that you want to annotate,
+     *     and the `parameter_id` field is set.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.PartOrBuilder getPartsOrBuilder(
+        int index);
+
+    /**
+     *
+     *
+     * <pre>
+     * Indicates how many times this example was added to the intent.
+     * </pre>
+     *
+     * <code>int32 repeat_count = 3;</code>
+     *
+     * @return The repeatCount.
+     */
+    int getRepeatCount();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents an example that the agent is trained on to identify the intent.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase}
+   */
+  public static final class TrainingPhrase extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase)
+      TrainingPhraseOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use TrainingPhrase.newBuilder() to construct.
+    private TrainingPhrase(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+
+    private TrainingPhrase() {
+      id_ = "";
+      parts_ = java.util.Collections.emptyList();
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new TrainingPhrase();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private TrainingPhrase(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      int mutable_bitField0_ = 0;
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+
+                id_ = s;
+                break;
+              }
+            case 18:
+              {
+                if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                  parts_ =
+                      new java.util.ArrayList<
+                          com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part>();
+                  mutable_bitField0_ |= 0x00000001;
+                }
+                parts_.add(
+                    input.readMessage(
+                        com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.parser(),
+                        extensionRegistry));
+                break;
+              }
+            case 24:
+              {
+                repeatCount_ = input.readInt32();
+                break;
+              }
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        if (((mutable_bitField0_ & 0x00000001) != 0)) {
+          parts_ = java.util.Collections.unmodifiableList(parts_);
+        }
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_TrainingPhrase_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_TrainingPhrase_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.class,
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Builder.class);
+    }
+
+    public interface PartOrBuilder
+        extends
+        // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part)
+        com.google.protobuf.MessageOrBuilder {
+
+      /**
+       *
+       *
+       * <pre>
+       * Required. The text for this part.
+       * </pre>
+       *
+       * <code>string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return The text.
+       */
+      java.lang.String getText();
+      /**
+       *
+       *
+       * <pre>
+       * Required. The text for this part.
+       * </pre>
+       *
+       * <code>string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return The bytes for text.
+       */
+      com.google.protobuf.ByteString getTextBytes();
+
+      /**
+       *
+       *
+       * <pre>
+       * The [parameter][google.cloud.dialogflow.cx.v3beta1.Intent.Parameter] used to annotate this part of the
+       * training phrase. This field is required for annotated parts of the
+       * training phrase.
+       * </pre>
+       *
+       * <code>string parameter_id = 2;</code>
+       *
+       * @return The parameterId.
+       */
+      java.lang.String getParameterId();
+      /**
+       *
+       *
+       * <pre>
+       * The [parameter][google.cloud.dialogflow.cx.v3beta1.Intent.Parameter] used to annotate this part of the
+       * training phrase. This field is required for annotated parts of the
+       * training phrase.
+       * </pre>
+       *
+       * <code>string parameter_id = 2;</code>
+       *
+       * @return The bytes for parameterId.
+       */
+      com.google.protobuf.ByteString getParameterIdBytes();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents a part of a training phrase.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part}
+     */
+    public static final class Part extends com.google.protobuf.GeneratedMessageV3
+        implements
+        // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part)
+        PartOrBuilder {
+      private static final long serialVersionUID = 0L;
+      // Use Part.newBuilder() to construct.
+      private Part(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+        super(builder);
+      }
+
+      private Part() {
+        text_ = "";
+        parameterId_ = "";
+      }
+
+      @java.lang.Override
+      @SuppressWarnings({"unused"})
+      protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+        return new Part();
+      }
+
+      @java.lang.Override
+      public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+        return this.unknownFields;
+      }
+
+      private Part(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        this();
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
+        com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+            com.google.protobuf.UnknownFieldSet.newBuilder();
+        try {
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+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  java.lang.String s = input.readStringRequireUtf8();
+
+                  text_ = s;
+                  break;
+                }
+              case 18:
+                {
+                  java.lang.String s = input.readStringRequireUtf8();
+
+                  parameterId_ = s;
+                  break;
+                }
+              default:
+                {
+                  if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                    done = true;
+                  }
+                  break;
+                }
+            }
+          }
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(this);
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(this);
+        } finally {
+          this.unknownFields = unknownFields.build();
+          makeExtensionsImmutable();
+        }
+      }
+
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_TrainingPhrase_Part_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_TrainingPhrase_Part_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.class,
+                com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.Builder.class);
+      }
+
+      public static final int TEXT_FIELD_NUMBER = 1;
+      private volatile java.lang.Object text_;
+      /**
+       *
+       *
+       * <pre>
+       * Required. The text for this part.
+       * </pre>
+       *
+       * <code>string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return The text.
+       */
+      @java.lang.Override
+      public java.lang.String getText() {
+        java.lang.Object ref = text_;
+        if (ref instanceof java.lang.String) {
+          return (java.lang.String) ref;
+        } else {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          text_ = s;
+          return s;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The text for this part.
+       * </pre>
+       *
+       * <code>string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return The bytes for text.
+       */
+      @java.lang.Override
+      public com.google.protobuf.ByteString getTextBytes() {
+        java.lang.Object ref = text_;
+        if (ref instanceof java.lang.String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          text_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+
+      public static final int PARAMETER_ID_FIELD_NUMBER = 2;
+      private volatile java.lang.Object parameterId_;
+      /**
+       *
+       *
+       * <pre>
+       * The [parameter][google.cloud.dialogflow.cx.v3beta1.Intent.Parameter] used to annotate this part of the
+       * training phrase. This field is required for annotated parts of the
+       * training phrase.
+       * </pre>
+       *
+       * <code>string parameter_id = 2;</code>
+       *
+       * @return The parameterId.
+       */
+      @java.lang.Override
+      public java.lang.String getParameterId() {
+        java.lang.Object ref = parameterId_;
+        if (ref instanceof java.lang.String) {
+          return (java.lang.String) ref;
+        } else {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          parameterId_ = s;
+          return s;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The [parameter][google.cloud.dialogflow.cx.v3beta1.Intent.Parameter] used to annotate this part of the
+       * training phrase. This field is required for annotated parts of the
+       * training phrase.
+       * </pre>
+       *
+       * <code>string parameter_id = 2;</code>
+       *
+       * @return The bytes for parameterId.
+       */
+      @java.lang.Override
+      public com.google.protobuf.ByteString getParameterIdBytes() {
+        java.lang.Object ref = parameterId_;
+        if (ref instanceof java.lang.String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          parameterId_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+
+      private byte memoizedIsInitialized = -1;
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        byte isInitialized = memoizedIsInitialized;
+        if (isInitialized == 1) return true;
+        if (isInitialized == 0) return false;
+
+        memoizedIsInitialized = 1;
+        return true;
+      }
+
+      @java.lang.Override
+      public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+        if (!getTextBytes().isEmpty()) {
+          com.google.protobuf.GeneratedMessageV3.writeString(output, 1, text_);
+        }
+        if (!getParameterIdBytes().isEmpty()) {
+          com.google.protobuf.GeneratedMessageV3.writeString(output, 2, parameterId_);
+        }
+        unknownFields.writeTo(output);
+      }
+
+      @java.lang.Override
+      public int getSerializedSize() {
+        int size = memoizedSize;
+        if (size != -1) return size;
+
+        size = 0;
+        if (!getTextBytes().isEmpty()) {
+          size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, text_);
+        }
+        if (!getParameterIdBytes().isEmpty()) {
+          size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, parameterId_);
+        }
+        size += unknownFields.getSerializedSize();
+        memoizedSize = size;
+        return size;
+      }
+
+      @java.lang.Override
+      public boolean equals(final java.lang.Object obj) {
+        if (obj == this) {
+          return true;
+        }
+        if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part)) {
+          return super.equals(obj);
+        }
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part other =
+            (com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part) obj;
+
+        if (!getText().equals(other.getText())) return false;
+        if (!getParameterId().equals(other.getParameterId())) return false;
+        if (!unknownFields.equals(other.unknownFields)) return false;
+        return true;
+      }
+
+      @java.lang.Override
+      public int hashCode() {
+        if (memoizedHashCode != 0) {
+          return memoizedHashCode;
+        }
+        int hash = 41;
+        hash = (19 * hash) + getDescriptor().hashCode();
+        hash = (37 * hash) + TEXT_FIELD_NUMBER;
+        hash = (53 * hash) + getText().hashCode();
+        hash = (37 * hash) + PARAMETER_ID_FIELD_NUMBER;
+        hash = (53 * hash) + getParameterId().hashCode();
+        hash = (29 * hash) + unknownFields.hashCode();
+        memoizedHashCode = hash;
+        return hash;
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parseFrom(
+          java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parseFrom(
+          java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parseFrom(
+          com.google.protobuf.ByteString data)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parseFrom(
+          com.google.protobuf.ByteString data,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parseFrom(
+          byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parseFrom(
+          byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parseFrom(
+          java.io.InputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parseFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part
+          parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part
+          parseDelimitedFrom(
+              java.io.InputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parseFrom(
+          com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parseFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      @java.lang.Override
+      public Builder newBuilderForType() {
+        return newBuilder();
+      }
+
+      public static Builder newBuilder() {
+        return DEFAULT_INSTANCE.toBuilder();
+      }
+
+      public static Builder newBuilder(
+          com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part prototype) {
+        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+      }
+
+      @java.lang.Override
+      public Builder toBuilder() {
+        return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+      }
+
+      @java.lang.Override
+      protected Builder newBuilderForType(
+          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        Builder builder = new Builder(parent);
+        return builder;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Represents a part of a training phrase.
+       * </pre>
+       *
+       * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part}
+       */
+      public static final class Builder
+          extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+          implements
+          // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part)
+          com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.PartOrBuilder {
+        public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+          return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+              .internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_TrainingPhrase_Part_descriptor;
+        }
+
+        @java.lang.Override
+        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+            internalGetFieldAccessorTable() {
+          return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+              .internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_TrainingPhrase_Part_fieldAccessorTable
+              .ensureFieldAccessorsInitialized(
+                  com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.class,
+                  com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.Builder.class);
+        }
+
+        // Construct using
+        // com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.newBuilder()
+        private Builder() {
+          maybeForceBuilderInitialization();
+        }
+
+        private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+          super(parent);
+          maybeForceBuilderInitialization();
+        }
+
+        private void maybeForceBuilderInitialization() {
+          if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+        }
+
+        @java.lang.Override
+        public Builder clear() {
+          super.clear();
+          text_ = "";
+
+          parameterId_ = "";
+
+          return this;
+        }
+
+        @java.lang.Override
+        public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+          return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+              .internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_TrainingPhrase_Part_descriptor;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part
+            getDefaultInstanceForType() {
+          return com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part
+              .getDefaultInstance();
+        }
+
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part build() {
+          com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part result = buildPartial();
+          if (!result.isInitialized()) {
+            throw newUninitializedMessageException(result);
+          }
+          return result;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part buildPartial() {
+          com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part result =
+              new com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part(this);
+          result.text_ = text_;
+          result.parameterId_ = parameterId_;
+          onBuilt();
+          return result;
+        }
+
+        @java.lang.Override
+        public Builder clone() {
+          return super.clone();
+        }
+
+        @java.lang.Override
+        public Builder setField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.setField(field, value);
+        }
+
+        @java.lang.Override
+        public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+          return super.clearField(field);
+        }
+
+        @java.lang.Override
+        public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+          return super.clearOneof(oneof);
+        }
+
+        @java.lang.Override
+        public Builder setRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field,
+            int index,
+            java.lang.Object value) {
+          return super.setRepeatedField(field, index, value);
+        }
+
+        @java.lang.Override
+        public Builder addRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.addRepeatedField(field, value);
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(com.google.protobuf.Message other) {
+          if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part) {
+            return mergeFrom(
+                (com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part) other);
+          } else {
+            super.mergeFrom(other);
+            return this;
+          }
+        }
+
+        public Builder mergeFrom(
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part other) {
+          if (other
+              == com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part
+                  .getDefaultInstance()) return this;
+          if (!other.getText().isEmpty()) {
+            text_ = other.text_;
+            onChanged();
+          }
+          if (!other.getParameterId().isEmpty()) {
+            parameterId_ = other.parameterId_;
+            onChanged();
+          }
+          this.mergeUnknownFields(other.unknownFields);
+          onChanged();
+          return this;
+        }
+
+        @java.lang.Override
+        public final boolean isInitialized() {
+          return true;
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+          com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parsedMessage = null;
+          try {
+            parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            parsedMessage =
+                (com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part)
+                    e.getUnfinishedMessage();
+            throw e.unwrapIOException();
+          } finally {
+            if (parsedMessage != null) {
+              mergeFrom(parsedMessage);
+            }
+          }
+          return this;
+        }
+
+        private java.lang.Object text_ = "";
+        /**
+         *
+         *
+         * <pre>
+         * Required. The text for this part.
+         * </pre>
+         *
+         * <code>string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+         *
+         * @return The text.
+         */
+        public java.lang.String getText() {
+          java.lang.Object ref = text_;
+          if (!(ref instanceof java.lang.String)) {
+            com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+            java.lang.String s = bs.toStringUtf8();
+            text_ = s;
+            return s;
+          } else {
+            return (java.lang.String) ref;
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Required. The text for this part.
+         * </pre>
+         *
+         * <code>string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+         *
+         * @return The bytes for text.
+         */
+        public com.google.protobuf.ByteString getTextBytes() {
+          java.lang.Object ref = text_;
+          if (ref instanceof String) {
+            com.google.protobuf.ByteString b =
+                com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+            text_ = b;
+            return b;
+          } else {
+            return (com.google.protobuf.ByteString) ref;
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Required. The text for this part.
+         * </pre>
+         *
+         * <code>string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+         *
+         * @param value The text to set.
+         * @return This builder for chaining.
+         */
+        public Builder setText(java.lang.String value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+
+          text_ = value;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Required. The text for this part.
+         * </pre>
+         *
+         * <code>string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearText() {
+
+          text_ = getDefaultInstance().getText();
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Required. The text for this part.
+         * </pre>
+         *
+         * <code>string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+         *
+         * @param value The bytes for text to set.
+         * @return This builder for chaining.
+         */
+        public Builder setTextBytes(com.google.protobuf.ByteString value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          checkByteStringIsUtf8(value);
+
+          text_ = value;
+          onChanged();
+          return this;
+        }
+
+        private java.lang.Object parameterId_ = "";
+        /**
+         *
+         *
+         * <pre>
+         * The [parameter][google.cloud.dialogflow.cx.v3beta1.Intent.Parameter] used to annotate this part of the
+         * training phrase. This field is required for annotated parts of the
+         * training phrase.
+         * </pre>
+         *
+         * <code>string parameter_id = 2;</code>
+         *
+         * @return The parameterId.
+         */
+        public java.lang.String getParameterId() {
+          java.lang.Object ref = parameterId_;
+          if (!(ref instanceof java.lang.String)) {
+            com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+            java.lang.String s = bs.toStringUtf8();
+            parameterId_ = s;
+            return s;
+          } else {
+            return (java.lang.String) ref;
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The [parameter][google.cloud.dialogflow.cx.v3beta1.Intent.Parameter] used to annotate this part of the
+         * training phrase. This field is required for annotated parts of the
+         * training phrase.
+         * </pre>
+         *
+         * <code>string parameter_id = 2;</code>
+         *
+         * @return The bytes for parameterId.
+         */
+        public com.google.protobuf.ByteString getParameterIdBytes() {
+          java.lang.Object ref = parameterId_;
+          if (ref instanceof String) {
+            com.google.protobuf.ByteString b =
+                com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+            parameterId_ = b;
+            return b;
+          } else {
+            return (com.google.protobuf.ByteString) ref;
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The [parameter][google.cloud.dialogflow.cx.v3beta1.Intent.Parameter] used to annotate this part of the
+         * training phrase. This field is required for annotated parts of the
+         * training phrase.
+         * </pre>
+         *
+         * <code>string parameter_id = 2;</code>
+         *
+         * @param value The parameterId to set.
+         * @return This builder for chaining.
+         */
+        public Builder setParameterId(java.lang.String value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+
+          parameterId_ = value;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The [parameter][google.cloud.dialogflow.cx.v3beta1.Intent.Parameter] used to annotate this part of the
+         * training phrase. This field is required for annotated parts of the
+         * training phrase.
+         * </pre>
+         *
+         * <code>string parameter_id = 2;</code>
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearParameterId() {
+
+          parameterId_ = getDefaultInstance().getParameterId();
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * The [parameter][google.cloud.dialogflow.cx.v3beta1.Intent.Parameter] used to annotate this part of the
+         * training phrase. This field is required for annotated parts of the
+         * training phrase.
+         * </pre>
+         *
+         * <code>string parameter_id = 2;</code>
+         *
+         * @param value The bytes for parameterId to set.
+         * @return This builder for chaining.
+         */
+        public Builder setParameterIdBytes(com.google.protobuf.ByteString value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          checkByteStringIsUtf8(value);
+
+          parameterId_ = value;
+          onChanged();
+          return this;
+        }
+
+        @java.lang.Override
+        public final Builder setUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.setUnknownFields(unknownFields);
+        }
+
+        @java.lang.Override
+        public final Builder mergeUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.mergeUnknownFields(unknownFields);
+        }
+
+        // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part)
+      }
+
+      // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part)
+      private static final com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part
+          DEFAULT_INSTANCE;
+
+      static {
+        DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part();
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part
+          getDefaultInstance() {
+        return DEFAULT_INSTANCE;
+      }
+
+      private static final com.google.protobuf.Parser<Part> PARSER =
+          new com.google.protobuf.AbstractParser<Part>() {
+            @java.lang.Override
+            public Part parsePartialFrom(
+                com.google.protobuf.CodedInputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+              return new Part(input, extensionRegistry);
+            }
+          };
+
+      public static com.google.protobuf.Parser<Part> parser() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Parser<Part> getParserForType() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part
+          getDefaultInstanceForType() {
+        return DEFAULT_INSTANCE;
+      }
+    }
+
+    public static final int ID_FIELD_NUMBER = 1;
+    private volatile java.lang.Object id_;
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of the training phrase.
+     * </pre>
+     *
+     * <code>string id = 1;</code>
+     *
+     * @return The id.
+     */
+    @java.lang.Override
+    public java.lang.String getId() {
+      java.lang.Object ref = id_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        id_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of the training phrase.
+     * </pre>
+     *
+     * <code>string id = 1;</code>
+     *
+     * @return The bytes for id.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getIdBytes() {
+      java.lang.Object ref = id_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        id_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    public static final int PARTS_FIELD_NUMBER = 2;
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part>
+        parts_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The ordered list of training phrase parts.
+     * The parts are concatenated in order to form the training phrase.
+     * Note: The API does not automatically annotate training phrases like the
+     * Dialogflow Console does.
+     * Note: Do not forget to include whitespace at part boundaries, so the
+     * training phrase is well formatted when the parts are concatenated.
+     * If the training phrase does not need to be annotated with parameters,
+     * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+     * If you want to annotate the training phrase, you must create multiple
+     * parts, where the fields of each part are populated in one of two ways:
+     * -   `Part.text` is set to a part of the phrase that has no parameters.
+     * -   `Part.text` is set to a part of the phrase that you want to annotate,
+     *     and the `parameter_id` field is set.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    @java.lang.Override
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part>
+        getPartsList() {
+      return parts_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The ordered list of training phrase parts.
+     * The parts are concatenated in order to form the training phrase.
+     * Note: The API does not automatically annotate training phrases like the
+     * Dialogflow Console does.
+     * Note: Do not forget to include whitespace at part boundaries, so the
+     * training phrase is well formatted when the parts are concatenated.
+     * If the training phrase does not need to be annotated with parameters,
+     * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+     * If you want to annotate the training phrase, you must create multiple
+     * parts, where the fields of each part are populated in one of two ways:
+     * -   `Part.text` is set to a part of the phrase that has no parameters.
+     * -   `Part.text` is set to a part of the phrase that you want to annotate,
+     *     and the `parameter_id` field is set.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    @java.lang.Override
+    public java.util.List<
+            ? extends com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.PartOrBuilder>
+        getPartsOrBuilderList() {
+      return parts_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The ordered list of training phrase parts.
+     * The parts are concatenated in order to form the training phrase.
+     * Note: The API does not automatically annotate training phrases like the
+     * Dialogflow Console does.
+     * Note: Do not forget to include whitespace at part boundaries, so the
+     * training phrase is well formatted when the parts are concatenated.
+     * If the training phrase does not need to be annotated with parameters,
+     * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+     * If you want to annotate the training phrase, you must create multiple
+     * parts, where the fields of each part are populated in one of two ways:
+     * -   `Part.text` is set to a part of the phrase that has no parameters.
+     * -   `Part.text` is set to a part of the phrase that you want to annotate,
+     *     and the `parameter_id` field is set.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    @java.lang.Override
+    public int getPartsCount() {
+      return parts_.size();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The ordered list of training phrase parts.
+     * The parts are concatenated in order to form the training phrase.
+     * Note: The API does not automatically annotate training phrases like the
+     * Dialogflow Console does.
+     * Note: Do not forget to include whitespace at part boundaries, so the
+     * training phrase is well formatted when the parts are concatenated.
+     * If the training phrase does not need to be annotated with parameters,
+     * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+     * If you want to annotate the training phrase, you must create multiple
+     * parts, where the fields of each part are populated in one of two ways:
+     * -   `Part.text` is set to a part of the phrase that has no parameters.
+     * -   `Part.text` is set to a part of the phrase that you want to annotate,
+     *     and the `parameter_id` field is set.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part getParts(int index) {
+      return parts_.get(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The ordered list of training phrase parts.
+     * The parts are concatenated in order to form the training phrase.
+     * Note: The API does not automatically annotate training phrases like the
+     * Dialogflow Console does.
+     * Note: Do not forget to include whitespace at part boundaries, so the
+     * training phrase is well formatted when the parts are concatenated.
+     * If the training phrase does not need to be annotated with parameters,
+     * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+     * If you want to annotate the training phrase, you must create multiple
+     * parts, where the fields of each part are populated in one of two ways:
+     * -   `Part.text` is set to a part of the phrase that has no parameters.
+     * -   `Part.text` is set to a part of the phrase that you want to annotate,
+     *     and the `parameter_id` field is set.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.PartOrBuilder
+        getPartsOrBuilder(int index) {
+      return parts_.get(index);
+    }
+
+    public static final int REPEAT_COUNT_FIELD_NUMBER = 3;
+    private int repeatCount_;
+    /**
+     *
+     *
+     * <pre>
+     * Indicates how many times this example was added to the intent.
+     * </pre>
+     *
+     * <code>int32 repeat_count = 3;</code>
+     *
+     * @return The repeatCount.
+     */
+    @java.lang.Override
+    public int getRepeatCount() {
+      return repeatCount_;
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (!getIdBytes().isEmpty()) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, id_);
+      }
+      for (int i = 0; i < parts_.size(); i++) {
+        output.writeMessage(2, parts_.get(i));
+      }
+      if (repeatCount_ != 0) {
+        output.writeInt32(3, repeatCount_);
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (!getIdBytes().isEmpty()) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, id_);
+      }
+      for (int i = 0; i < parts_.size(); i++) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, parts_.get(i));
+      }
+      if (repeatCount_ != 0) {
+        size += com.google.protobuf.CodedOutputStream.computeInt32Size(3, repeatCount_);
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase other =
+          (com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase) obj;
+
+      if (!getId().equals(other.getId())) return false;
+      if (!getPartsList().equals(other.getPartsList())) return false;
+      if (getRepeatCount() != other.getRepeatCount()) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + ID_FIELD_NUMBER;
+      hash = (53 * hash) + getId().hashCode();
+      if (getPartsCount() > 0) {
+        hash = (37 * hash) + PARTS_FIELD_NUMBER;
+        hash = (53 * hash) + getPartsList().hashCode();
+      }
+      hash = (37 * hash) + REPEAT_COUNT_FIELD_NUMBER;
+      hash = (53 * hash) + getRepeatCount();
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase parseFrom(
+        byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase parseDelimitedFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase parseDelimitedFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents an example that the agent is trained on to identify the intent.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase)
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhraseOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_TrainingPhrase_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_TrainingPhrase_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.class,
+                com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Builder.class);
+      }
+
+      // Construct using com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+          getPartsFieldBuilder();
+        }
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        id_ = "";
+
+        if (partsBuilder_ == null) {
+          parts_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000001);
+        } else {
+          partsBuilder_.clear();
+        }
+        repeatCount_ = 0;
+
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_TrainingPhrase_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase
+          getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase build() {
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase buildPartial() {
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase result =
+            new com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase(this);
+        int from_bitField0_ = bitField0_;
+        result.id_ = id_;
+        if (partsBuilder_ == null) {
+          if (((bitField0_ & 0x00000001) != 0)) {
+            parts_ = java.util.Collections.unmodifiableList(parts_);
+            bitField0_ = (bitField0_ & ~0x00000001);
+          }
+          result.parts_ = parts_;
+        } else {
+          result.parts_ = partsBuilder_.build();
+        }
+        result.repeatCount_ = repeatCount_;
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase) {
+          return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase other) {
+        if (other
+            == com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.getDefaultInstance())
+          return this;
+        if (!other.getId().isEmpty()) {
+          id_ = other.id_;
+          onChanged();
+        }
+        if (partsBuilder_ == null) {
+          if (!other.parts_.isEmpty()) {
+            if (parts_.isEmpty()) {
+              parts_ = other.parts_;
+              bitField0_ = (bitField0_ & ~0x00000001);
+            } else {
+              ensurePartsIsMutable();
+              parts_.addAll(other.parts_);
+            }
+            onChanged();
+          }
+        } else {
+          if (!other.parts_.isEmpty()) {
+            if (partsBuilder_.isEmpty()) {
+              partsBuilder_.dispose();
+              partsBuilder_ = null;
+              parts_ = other.parts_;
+              bitField0_ = (bitField0_ & ~0x00000001);
+              partsBuilder_ =
+                  com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                      ? getPartsFieldBuilder()
+                      : null;
+            } else {
+              partsBuilder_.addAllMessages(other.parts_);
+            }
+          }
+        }
+        if (other.getRepeatCount() != 0) {
+          setRepeatCount(other.getRepeatCount());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase)
+                  e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private int bitField0_;
+
+      private java.lang.Object id_ = "";
+      /**
+       *
+       *
+       * <pre>
+       * Output only. The unique identifier of the training phrase.
+       * </pre>
+       *
+       * <code>string id = 1;</code>
+       *
+       * @return The id.
+       */
+      public java.lang.String getId() {
+        java.lang.Object ref = id_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          id_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Output only. The unique identifier of the training phrase.
+       * </pre>
+       *
+       * <code>string id = 1;</code>
+       *
+       * @return The bytes for id.
+       */
+      public com.google.protobuf.ByteString getIdBytes() {
+        java.lang.Object ref = id_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          id_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Output only. The unique identifier of the training phrase.
+       * </pre>
+       *
+       * <code>string id = 1;</code>
+       *
+       * @param value The id to set.
+       * @return This builder for chaining.
+       */
+      public Builder setId(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+
+        id_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Output only. The unique identifier of the training phrase.
+       * </pre>
+       *
+       * <code>string id = 1;</code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearId() {
+
+        id_ = getDefaultInstance().getId();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Output only. The unique identifier of the training phrase.
+       * </pre>
+       *
+       * <code>string id = 1;</code>
+       *
+       * @param value The bytes for id to set.
+       * @return This builder for chaining.
+       */
+      public Builder setIdBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+
+        id_ = value;
+        onChanged();
+        return this;
+      }
+
+      private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part>
+          parts_ = java.util.Collections.emptyList();
+
+      private void ensurePartsIsMutable() {
+        if (!((bitField0_ & 0x00000001) != 0)) {
+          parts_ =
+              new java.util.ArrayList<
+                  com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part>(parts_);
+          bitField0_ |= 0x00000001;
+        }
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part,
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.Builder,
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.PartOrBuilder>
+          partsBuilder_;
+
+      /**
+       *
+       *
+       * <pre>
+       * Required. The ordered list of training phrase parts.
+       * The parts are concatenated in order to form the training phrase.
+       * Note: The API does not automatically annotate training phrases like the
+       * Dialogflow Console does.
+       * Note: Do not forget to include whitespace at part boundaries, so the
+       * training phrase is well formatted when the parts are concatenated.
+       * If the training phrase does not need to be annotated with parameters,
+       * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+       * If you want to annotate the training phrase, you must create multiple
+       * parts, where the fields of each part are populated in one of two ways:
+       * -   `Part.text` is set to a part of the phrase that has no parameters.
+       * -   `Part.text` is set to a part of the phrase that you want to annotate,
+       *     and the `parameter_id` field is set.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part>
+          getPartsList() {
+        if (partsBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(parts_);
+        } else {
+          return partsBuilder_.getMessageList();
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The ordered list of training phrase parts.
+       * The parts are concatenated in order to form the training phrase.
+       * Note: The API does not automatically annotate training phrases like the
+       * Dialogflow Console does.
+       * Note: Do not forget to include whitespace at part boundaries, so the
+       * training phrase is well formatted when the parts are concatenated.
+       * If the training phrase does not need to be annotated with parameters,
+       * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+       * If you want to annotate the training phrase, you must create multiple
+       * parts, where the fields of each part are populated in one of two ways:
+       * -   `Part.text` is set to a part of the phrase that has no parameters.
+       * -   `Part.text` is set to a part of the phrase that you want to annotate,
+       *     and the `parameter_id` field is set.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public int getPartsCount() {
+        if (partsBuilder_ == null) {
+          return parts_.size();
+        } else {
+          return partsBuilder_.getCount();
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The ordered list of training phrase parts.
+       * The parts are concatenated in order to form the training phrase.
+       * Note: The API does not automatically annotate training phrases like the
+       * Dialogflow Console does.
+       * Note: Do not forget to include whitespace at part boundaries, so the
+       * training phrase is well formatted when the parts are concatenated.
+       * If the training phrase does not need to be annotated with parameters,
+       * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+       * If you want to annotate the training phrase, you must create multiple
+       * parts, where the fields of each part are populated in one of two ways:
+       * -   `Part.text` is set to a part of the phrase that has no parameters.
+       * -   `Part.text` is set to a part of the phrase that you want to annotate,
+       *     and the `parameter_id` field is set.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part getParts(int index) {
+        if (partsBuilder_ == null) {
+          return parts_.get(index);
+        } else {
+          return partsBuilder_.getMessage(index);
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The ordered list of training phrase parts.
+       * The parts are concatenated in order to form the training phrase.
+       * Note: The API does not automatically annotate training phrases like the
+       * Dialogflow Console does.
+       * Note: Do not forget to include whitespace at part boundaries, so the
+       * training phrase is well formatted when the parts are concatenated.
+       * If the training phrase does not need to be annotated with parameters,
+       * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+       * If you want to annotate the training phrase, you must create multiple
+       * parts, where the fields of each part are populated in one of two ways:
+       * -   `Part.text` is set to a part of the phrase that has no parameters.
+       * -   `Part.text` is set to a part of the phrase that you want to annotate,
+       *     and the `parameter_id` field is set.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public Builder setParts(
+          int index, com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part value) {
+        if (partsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensurePartsIsMutable();
+          parts_.set(index, value);
+          onChanged();
+        } else {
+          partsBuilder_.setMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The ordered list of training phrase parts.
+       * The parts are concatenated in order to form the training phrase.
+       * Note: The API does not automatically annotate training phrases like the
+       * Dialogflow Console does.
+       * Note: Do not forget to include whitespace at part boundaries, so the
+       * training phrase is well formatted when the parts are concatenated.
+       * If the training phrase does not need to be annotated with parameters,
+       * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+       * If you want to annotate the training phrase, you must create multiple
+       * parts, where the fields of each part are populated in one of two ways:
+       * -   `Part.text` is set to a part of the phrase that has no parameters.
+       * -   `Part.text` is set to a part of the phrase that you want to annotate,
+       *     and the `parameter_id` field is set.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public Builder setParts(
+          int index,
+          com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.Builder
+              builderForValue) {
+        if (partsBuilder_ == null) {
+          ensurePartsIsMutable();
+          parts_.set(index, builderForValue.build());
+          onChanged();
+        } else {
+          partsBuilder_.setMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The ordered list of training phrase parts.
+       * The parts are concatenated in order to form the training phrase.
+       * Note: The API does not automatically annotate training phrases like the
+       * Dialogflow Console does.
+       * Note: Do not forget to include whitespace at part boundaries, so the
+       * training phrase is well formatted when the parts are concatenated.
+       * If the training phrase does not need to be annotated with parameters,
+       * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+       * If you want to annotate the training phrase, you must create multiple
+       * parts, where the fields of each part are populated in one of two ways:
+       * -   `Part.text` is set to a part of the phrase that has no parameters.
+       * -   `Part.text` is set to a part of the phrase that you want to annotate,
+       *     and the `parameter_id` field is set.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public Builder addParts(
+          com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part value) {
+        if (partsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensurePartsIsMutable();
+          parts_.add(value);
+          onChanged();
+        } else {
+          partsBuilder_.addMessage(value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The ordered list of training phrase parts.
+       * The parts are concatenated in order to form the training phrase.
+       * Note: The API does not automatically annotate training phrases like the
+       * Dialogflow Console does.
+       * Note: Do not forget to include whitespace at part boundaries, so the
+       * training phrase is well formatted when the parts are concatenated.
+       * If the training phrase does not need to be annotated with parameters,
+       * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+       * If you want to annotate the training phrase, you must create multiple
+       * parts, where the fields of each part are populated in one of two ways:
+       * -   `Part.text` is set to a part of the phrase that has no parameters.
+       * -   `Part.text` is set to a part of the phrase that you want to annotate,
+       *     and the `parameter_id` field is set.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public Builder addParts(
+          int index, com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part value) {
+        if (partsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensurePartsIsMutable();
+          parts_.add(index, value);
+          onChanged();
+        } else {
+          partsBuilder_.addMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The ordered list of training phrase parts.
+       * The parts are concatenated in order to form the training phrase.
+       * Note: The API does not automatically annotate training phrases like the
+       * Dialogflow Console does.
+       * Note: Do not forget to include whitespace at part boundaries, so the
+       * training phrase is well formatted when the parts are concatenated.
+       * If the training phrase does not need to be annotated with parameters,
+       * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+       * If you want to annotate the training phrase, you must create multiple
+       * parts, where the fields of each part are populated in one of two ways:
+       * -   `Part.text` is set to a part of the phrase that has no parameters.
+       * -   `Part.text` is set to a part of the phrase that you want to annotate,
+       *     and the `parameter_id` field is set.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public Builder addParts(
+          com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.Builder
+              builderForValue) {
+        if (partsBuilder_ == null) {
+          ensurePartsIsMutable();
+          parts_.add(builderForValue.build());
+          onChanged();
+        } else {
+          partsBuilder_.addMessage(builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The ordered list of training phrase parts.
+       * The parts are concatenated in order to form the training phrase.
+       * Note: The API does not automatically annotate training phrases like the
+       * Dialogflow Console does.
+       * Note: Do not forget to include whitespace at part boundaries, so the
+       * training phrase is well formatted when the parts are concatenated.
+       * If the training phrase does not need to be annotated with parameters,
+       * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+       * If you want to annotate the training phrase, you must create multiple
+       * parts, where the fields of each part are populated in one of two ways:
+       * -   `Part.text` is set to a part of the phrase that has no parameters.
+       * -   `Part.text` is set to a part of the phrase that you want to annotate,
+       *     and the `parameter_id` field is set.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public Builder addParts(
+          int index,
+          com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.Builder
+              builderForValue) {
+        if (partsBuilder_ == null) {
+          ensurePartsIsMutable();
+          parts_.add(index, builderForValue.build());
+          onChanged();
+        } else {
+          partsBuilder_.addMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The ordered list of training phrase parts.
+       * The parts are concatenated in order to form the training phrase.
+       * Note: The API does not automatically annotate training phrases like the
+       * Dialogflow Console does.
+       * Note: Do not forget to include whitespace at part boundaries, so the
+       * training phrase is well formatted when the parts are concatenated.
+       * If the training phrase does not need to be annotated with parameters,
+       * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+       * If you want to annotate the training phrase, you must create multiple
+       * parts, where the fields of each part are populated in one of two ways:
+       * -   `Part.text` is set to a part of the phrase that has no parameters.
+       * -   `Part.text` is set to a part of the phrase that you want to annotate,
+       *     and the `parameter_id` field is set.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public Builder addAllParts(
+          java.lang.Iterable<
+                  ? extends com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part>
+              values) {
+        if (partsBuilder_ == null) {
+          ensurePartsIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, parts_);
+          onChanged();
+        } else {
+          partsBuilder_.addAllMessages(values);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The ordered list of training phrase parts.
+       * The parts are concatenated in order to form the training phrase.
+       * Note: The API does not automatically annotate training phrases like the
+       * Dialogflow Console does.
+       * Note: Do not forget to include whitespace at part boundaries, so the
+       * training phrase is well formatted when the parts are concatenated.
+       * If the training phrase does not need to be annotated with parameters,
+       * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+       * If you want to annotate the training phrase, you must create multiple
+       * parts, where the fields of each part are populated in one of two ways:
+       * -   `Part.text` is set to a part of the phrase that has no parameters.
+       * -   `Part.text` is set to a part of the phrase that you want to annotate,
+       *     and the `parameter_id` field is set.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public Builder clearParts() {
+        if (partsBuilder_ == null) {
+          parts_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000001);
+          onChanged();
+        } else {
+          partsBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The ordered list of training phrase parts.
+       * The parts are concatenated in order to form the training phrase.
+       * Note: The API does not automatically annotate training phrases like the
+       * Dialogflow Console does.
+       * Note: Do not forget to include whitespace at part boundaries, so the
+       * training phrase is well formatted when the parts are concatenated.
+       * If the training phrase does not need to be annotated with parameters,
+       * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+       * If you want to annotate the training phrase, you must create multiple
+       * parts, where the fields of each part are populated in one of two ways:
+       * -   `Part.text` is set to a part of the phrase that has no parameters.
+       * -   `Part.text` is set to a part of the phrase that you want to annotate,
+       *     and the `parameter_id` field is set.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public Builder removeParts(int index) {
+        if (partsBuilder_ == null) {
+          ensurePartsIsMutable();
+          parts_.remove(index);
+          onChanged();
+        } else {
+          partsBuilder_.remove(index);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The ordered list of training phrase parts.
+       * The parts are concatenated in order to form the training phrase.
+       * Note: The API does not automatically annotate training phrases like the
+       * Dialogflow Console does.
+       * Note: Do not forget to include whitespace at part boundaries, so the
+       * training phrase is well formatted when the parts are concatenated.
+       * If the training phrase does not need to be annotated with parameters,
+       * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+       * If you want to annotate the training phrase, you must create multiple
+       * parts, where the fields of each part are populated in one of two ways:
+       * -   `Part.text` is set to a part of the phrase that has no parameters.
+       * -   `Part.text` is set to a part of the phrase that you want to annotate,
+       *     and the `parameter_id` field is set.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.Builder
+          getPartsBuilder(int index) {
+        return getPartsFieldBuilder().getBuilder(index);
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The ordered list of training phrase parts.
+       * The parts are concatenated in order to form the training phrase.
+       * Note: The API does not automatically annotate training phrases like the
+       * Dialogflow Console does.
+       * Note: Do not forget to include whitespace at part boundaries, so the
+       * training phrase is well formatted when the parts are concatenated.
+       * If the training phrase does not need to be annotated with parameters,
+       * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+       * If you want to annotate the training phrase, you must create multiple
+       * parts, where the fields of each part are populated in one of two ways:
+       * -   `Part.text` is set to a part of the phrase that has no parameters.
+       * -   `Part.text` is set to a part of the phrase that you want to annotate,
+       *     and the `parameter_id` field is set.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.PartOrBuilder
+          getPartsOrBuilder(int index) {
+        if (partsBuilder_ == null) {
+          return parts_.get(index);
+        } else {
+          return partsBuilder_.getMessageOrBuilder(index);
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The ordered list of training phrase parts.
+       * The parts are concatenated in order to form the training phrase.
+       * Note: The API does not automatically annotate training phrases like the
+       * Dialogflow Console does.
+       * Note: Do not forget to include whitespace at part boundaries, so the
+       * training phrase is well formatted when the parts are concatenated.
+       * If the training phrase does not need to be annotated with parameters,
+       * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+       * If you want to annotate the training phrase, you must create multiple
+       * parts, where the fields of each part are populated in one of two ways:
+       * -   `Part.text` is set to a part of the phrase that has no parameters.
+       * -   `Part.text` is set to a part of the phrase that you want to annotate,
+       *     and the `parameter_id` field is set.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public java.util.List<
+              ? extends com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.PartOrBuilder>
+          getPartsOrBuilderList() {
+        if (partsBuilder_ != null) {
+          return partsBuilder_.getMessageOrBuilderList();
+        } else {
+          return java.util.Collections.unmodifiableList(parts_);
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The ordered list of training phrase parts.
+       * The parts are concatenated in order to form the training phrase.
+       * Note: The API does not automatically annotate training phrases like the
+       * Dialogflow Console does.
+       * Note: Do not forget to include whitespace at part boundaries, so the
+       * training phrase is well formatted when the parts are concatenated.
+       * If the training phrase does not need to be annotated with parameters,
+       * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+       * If you want to annotate the training phrase, you must create multiple
+       * parts, where the fields of each part are populated in one of two ways:
+       * -   `Part.text` is set to a part of the phrase that has no parameters.
+       * -   `Part.text` is set to a part of the phrase that you want to annotate,
+       *     and the `parameter_id` field is set.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.Builder
+          addPartsBuilder() {
+        return getPartsFieldBuilder()
+            .addBuilder(
+                com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part
+                    .getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The ordered list of training phrase parts.
+       * The parts are concatenated in order to form the training phrase.
+       * Note: The API does not automatically annotate training phrases like the
+       * Dialogflow Console does.
+       * Note: Do not forget to include whitespace at part boundaries, so the
+       * training phrase is well formatted when the parts are concatenated.
+       * If the training phrase does not need to be annotated with parameters,
+       * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+       * If you want to annotate the training phrase, you must create multiple
+       * parts, where the fields of each part are populated in one of two ways:
+       * -   `Part.text` is set to a part of the phrase that has no parameters.
+       * -   `Part.text` is set to a part of the phrase that you want to annotate,
+       *     and the `parameter_id` field is set.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.Builder
+          addPartsBuilder(int index) {
+        return getPartsFieldBuilder()
+            .addBuilder(
+                index,
+                com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part
+                    .getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The ordered list of training phrase parts.
+       * The parts are concatenated in order to form the training phrase.
+       * Note: The API does not automatically annotate training phrases like the
+       * Dialogflow Console does.
+       * Note: Do not forget to include whitespace at part boundaries, so the
+       * training phrase is well formatted when the parts are concatenated.
+       * If the training phrase does not need to be annotated with parameters,
+       * you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+       * If you want to annotate the training phrase, you must create multiple
+       * parts, where the fields of each part are populated in one of two ways:
+       * -   `Part.text` is set to a part of the phrase that has no parameters.
+       * -   `Part.text` is set to a part of the phrase that you want to annotate,
+       *     and the `parameter_id` field is set.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part parts = 2 [(.google.api.field_behavior) = REQUIRED];
+       * </code>
+       */
+      public java.util.List<
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.Builder>
+          getPartsBuilderList() {
+        return getPartsFieldBuilder().getBuilderList();
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part,
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.Builder,
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.PartOrBuilder>
+          getPartsFieldBuilder() {
+        if (partsBuilder_ == null) {
+          partsBuilder_ =
+              new com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part,
+                  com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.Builder,
+                  com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.PartOrBuilder>(
+                  parts_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+          parts_ = null;
+        }
+        return partsBuilder_;
+      }
+
+      private int repeatCount_;
+      /**
+       *
+       *
+       * <pre>
+       * Indicates how many times this example was added to the intent.
+       * </pre>
+       *
+       * <code>int32 repeat_count = 3;</code>
+       *
+       * @return The repeatCount.
+       */
+      @java.lang.Override
+      public int getRepeatCount() {
+        return repeatCount_;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Indicates how many times this example was added to the intent.
+       * </pre>
+       *
+       * <code>int32 repeat_count = 3;</code>
+       *
+       * @param value The repeatCount to set.
+       * @return This builder for chaining.
+       */
+      public Builder setRepeatCount(int value) {
+
+        repeatCount_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Indicates how many times this example was added to the intent.
+       * </pre>
+       *
+       * <code>int32 repeat_count = 3;</code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearRepeatCount() {
+
+        repeatCount_ = 0;
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase)
+    private static final com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase();
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<TrainingPhrase> PARSER =
+        new com.google.protobuf.AbstractParser<TrainingPhrase>() {
+          @java.lang.Override
+          public TrainingPhrase parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new TrainingPhrase(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser<TrainingPhrase> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<TrainingPhrase> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public interface ParameterOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.Intent.Parameter)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * <pre>
+     * Required. The unique identifier of the parameter. This field
+     * is used by [training phrases][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase] to annotate their
+     * [parts][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part].
+     * </pre>
+     *
+     * <code>string id = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The id.
+     */
+    java.lang.String getId();
+    /**
+     *
+     *
+     * <pre>
+     * Required. The unique identifier of the parameter. This field
+     * is used by [training phrases][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase] to annotate their
+     * [parts][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part].
+     * </pre>
+     *
+     * <code>string id = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for id.
+     */
+    com.google.protobuf.ByteString getIdBytes();
+
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type of the parameter.
+     * Format: `projects/-/locations/-/agents/-/entityTypes/&lt;System Entity Type
+     * ID&gt;` for system entity types (for example,
+     * `projects/-/locations/-/agents/-/entityTypes/sys.date`), or
+     * `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;` for developer entity types.
+     * </pre>
+     *
+     * <code>
+     * string entity_type = 2 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The entityType.
+     */
+    java.lang.String getEntityType();
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type of the parameter.
+     * Format: `projects/-/locations/-/agents/-/entityTypes/&lt;System Entity Type
+     * ID&gt;` for system entity types (for example,
+     * `projects/-/locations/-/agents/-/entityTypes/sys.date`), or
+     * `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;` for developer entity types.
+     * </pre>
+     *
+     * <code>
+     * string entity_type = 2 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for entityType.
+     */
+    com.google.protobuf.ByteString getEntityTypeBytes();
+
+    /**
+     *
+     *
+     * <pre>
+     * Indicates whether the parameter represents a list of values.
+     * </pre>
+     *
+     * <code>bool is_list = 3;</code>
+     *
+     * @return The isList.
+     */
+    boolean getIsList();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents an intent parameter.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Intent.Parameter}
+   */
+  public static final class Parameter extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.Intent.Parameter)
+      ParameterOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use Parameter.newBuilder() to construct.
+    private Parameter(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+
+    private Parameter() {
+      id_ = "";
+      entityType_ = "";
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new Parameter();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private Parameter(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+
+                id_ = s;
+                break;
+              }
+            case 18:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+
+                entityType_ = s;
+                break;
+              }
+            case 24:
+              {
+                isList_ = input.readBool();
+                break;
+              }
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_Parameter_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_Parameter_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter.class,
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter.Builder.class);
+    }
+
+    public static final int ID_FIELD_NUMBER = 1;
+    private volatile java.lang.Object id_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The unique identifier of the parameter. This field
+     * is used by [training phrases][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase] to annotate their
+     * [parts][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part].
+     * </pre>
+     *
+     * <code>string id = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The id.
+     */
+    @java.lang.Override
+    public java.lang.String getId() {
+      java.lang.Object ref = id_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        id_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The unique identifier of the parameter. This field
+     * is used by [training phrases][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase] to annotate their
+     * [parts][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part].
+     * </pre>
+     *
+     * <code>string id = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for id.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getIdBytes() {
+      java.lang.Object ref = id_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        id_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    public static final int ENTITY_TYPE_FIELD_NUMBER = 2;
+    private volatile java.lang.Object entityType_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type of the parameter.
+     * Format: `projects/-/locations/-/agents/-/entityTypes/&lt;System Entity Type
+     * ID&gt;` for system entity types (for example,
+     * `projects/-/locations/-/agents/-/entityTypes/sys.date`), or
+     * `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;` for developer entity types.
+     * </pre>
+     *
+     * <code>
+     * string entity_type = 2 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The entityType.
+     */
+    @java.lang.Override
+    public java.lang.String getEntityType() {
+      java.lang.Object ref = entityType_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        entityType_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type of the parameter.
+     * Format: `projects/-/locations/-/agents/-/entityTypes/&lt;System Entity Type
+     * ID&gt;` for system entity types (for example,
+     * `projects/-/locations/-/agents/-/entityTypes/sys.date`), or
+     * `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/entityTypes/&lt;Entity Type ID&gt;` for developer entity types.
+     * </pre>
+     *
+     * <code>
+     * string entity_type = 2 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for entityType.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getEntityTypeBytes() {
+      java.lang.Object ref = entityType_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        entityType_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    public static final int IS_LIST_FIELD_NUMBER = 3;
+    private boolean isList_;
+    /**
+     *
+     *
+     * <pre>
+     * Indicates whether the parameter represents a list of values.
+     * </pre>
+     *
+     * <code>bool is_list = 3;</code>
+     *
+     * @return The isList.
+     */
+    @java.lang.Override
+    public boolean getIsList() {
+      return isList_;
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (!getIdBytes().isEmpty()) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, id_);
+      }
+      if (!getEntityTypeBytes().isEmpty()) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 2, entityType_);
+      }
+      if (isList_ != false) {
+        output.writeBool(3, isList_);
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (!getIdBytes().isEmpty()) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, id_);
+      }
+      if (!getEntityTypeBytes().isEmpty()) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, entityType_);
+      }
+      if (isList_ != false) {
+        size += com.google.protobuf.CodedOutputStream.computeBoolSize(3, isList_);
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter other =
+          (com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter) obj;
+
+      if (!getId().equals(other.getId())) return false;
+      if (!getEntityType().equals(other.getEntityType())) return false;
+      if (getIsList() != other.getIsList()) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + ID_FIELD_NUMBER;
+      hash = (53 * hash) + getId().hashCode();
+      hash = (37 * hash) + ENTITY_TYPE_FIELD_NUMBER;
+      hash = (53 * hash) + getEntityType().hashCode();
+      hash = (37 * hash) + IS_LIST_FIELD_NUMBER;
+      hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getIsList());
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parseDelimitedFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parseDelimitedFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents an intent parameter.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Intent.Parameter}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.Intent.Parameter)
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.ParameterOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_Parameter_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_Parameter_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter.class,
+                com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter.Builder.class);
+      }
+
+      // Construct using com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        id_ = "";
+
+        entityType_ = "";
+
+        isList_ = false;
+
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_Parameter_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter build() {
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter buildPartial() {
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter result =
+            new com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter(this);
+        result.id_ = id_;
+        result.entityType_ = entityType_;
+        result.isList_ = isList_;
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter) {
+          return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter other) {
+        if (other == com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter.getDefaultInstance())
+          return this;
+        if (!other.getId().isEmpty()) {
+          id_ = other.id_;
+          onChanged();
+        }
+        if (!other.getEntityType().isEmpty()) {
+          entityType_ = other.entityType_;
+          onChanged();
+        }
+        if (other.getIsList() != false) {
+          setIsList(other.getIsList());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter) e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private java.lang.Object id_ = "";
+      /**
+       *
+       *
+       * <pre>
+       * Required. The unique identifier of the parameter. This field
+       * is used by [training phrases][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase] to annotate their
+       * [parts][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part].
+       * </pre>
+       *
+       * <code>string id = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return The id.
+       */
+      public java.lang.String getId() {
+        java.lang.Object ref = id_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          id_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The unique identifier of the parameter. This field
+       * is used by [training phrases][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase] to annotate their
+       * [parts][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part].
+       * </pre>
+       *
+       * <code>string id = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return The bytes for id.
+       */
+      public com.google.protobuf.ByteString getIdBytes() {
+        java.lang.Object ref = id_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          id_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The unique identifier of the parameter. This field
+       * is used by [training phrases][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase] to annotate their
+       * [parts][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part].
+       * </pre>
+       *
+       * <code>string id = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param value The id to set.
+       * @return This builder for chaining.
+       */
+      public Builder setId(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+
+        id_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The unique identifier of the parameter. This field
+       * is used by [training phrases][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase] to annotate their
+       * [parts][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part].
+       * </pre>
+       *
+       * <code>string id = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearId() {
+
+        id_ = getDefaultInstance().getId();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The unique identifier of the parameter. This field
+       * is used by [training phrases][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase] to annotate their
+       * [parts][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part].
+       * </pre>
+       *
+       * <code>string id = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param value The bytes for id to set.
+       * @return This builder for chaining.
+       */
+      public Builder setIdBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+
+        id_ = value;
+        onChanged();
+        return this;
+      }
+
+      private java.lang.Object entityType_ = "";
+      /**
+       *
+       *
+       * <pre>
+       * Required. The entity type of the parameter.
+       * Format: `projects/-/locations/-/agents/-/entityTypes/&lt;System Entity Type
+       * ID&gt;` for system entity types (for example,
+       * `projects/-/locations/-/agents/-/entityTypes/sys.date`), or
+       * `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+       * ID&gt;/entityTypes/&lt;Entity Type ID&gt;` for developer entity types.
+       * </pre>
+       *
+       * <code>
+       * string entity_type = 2 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+       * </code>
+       *
+       * @return The entityType.
+       */
+      public java.lang.String getEntityType() {
+        java.lang.Object ref = entityType_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          entityType_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The entity type of the parameter.
+       * Format: `projects/-/locations/-/agents/-/entityTypes/&lt;System Entity Type
+       * ID&gt;` for system entity types (for example,
+       * `projects/-/locations/-/agents/-/entityTypes/sys.date`), or
+       * `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+       * ID&gt;/entityTypes/&lt;Entity Type ID&gt;` for developer entity types.
+       * </pre>
+       *
+       * <code>
+       * string entity_type = 2 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+       * </code>
+       *
+       * @return The bytes for entityType.
+       */
+      public com.google.protobuf.ByteString getEntityTypeBytes() {
+        java.lang.Object ref = entityType_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          entityType_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The entity type of the parameter.
+       * Format: `projects/-/locations/-/agents/-/entityTypes/&lt;System Entity Type
+       * ID&gt;` for system entity types (for example,
+       * `projects/-/locations/-/agents/-/entityTypes/sys.date`), or
+       * `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+       * ID&gt;/entityTypes/&lt;Entity Type ID&gt;` for developer entity types.
+       * </pre>
+       *
+       * <code>
+       * string entity_type = 2 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+       * </code>
+       *
+       * @param value The entityType to set.
+       * @return This builder for chaining.
+       */
+      public Builder setEntityType(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+
+        entityType_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The entity type of the parameter.
+       * Format: `projects/-/locations/-/agents/-/entityTypes/&lt;System Entity Type
+       * ID&gt;` for system entity types (for example,
+       * `projects/-/locations/-/agents/-/entityTypes/sys.date`), or
+       * `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+       * ID&gt;/entityTypes/&lt;Entity Type ID&gt;` for developer entity types.
+       * </pre>
+       *
+       * <code>
+       * string entity_type = 2 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+       * </code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearEntityType() {
+
+        entityType_ = getDefaultInstance().getEntityType();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The entity type of the parameter.
+       * Format: `projects/-/locations/-/agents/-/entityTypes/&lt;System Entity Type
+       * ID&gt;` for system entity types (for example,
+       * `projects/-/locations/-/agents/-/entityTypes/sys.date`), or
+       * `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+       * ID&gt;/entityTypes/&lt;Entity Type ID&gt;` for developer entity types.
+       * </pre>
+       *
+       * <code>
+       * string entity_type = 2 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+       * </code>
+       *
+       * @param value The bytes for entityType to set.
+       * @return This builder for chaining.
+       */
+      public Builder setEntityTypeBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+
+        entityType_ = value;
+        onChanged();
+        return this;
+      }
+
+      private boolean isList_;
+      /**
+       *
+       *
+       * <pre>
+       * Indicates whether the parameter represents a list of values.
+       * </pre>
+       *
+       * <code>bool is_list = 3;</code>
+       *
+       * @return The isList.
+       */
+      @java.lang.Override
+      public boolean getIsList() {
+        return isList_;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Indicates whether the parameter represents a list of values.
+       * </pre>
+       *
+       * <code>bool is_list = 3;</code>
+       *
+       * @param value The isList to set.
+       * @return This builder for chaining.
+       */
+      public Builder setIsList(boolean value) {
+
+        isList_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Indicates whether the parameter represents a list of values.
+       * </pre>
+       *
+       * <code>bool is_list = 3;</code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearIsList() {
+
+        isList_ = false;
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.Intent.Parameter)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.Intent.Parameter)
+    private static final com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter();
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<Parameter> PARSER =
+        new com.google.protobuf.AbstractParser<Parameter>() {
+          @java.lang.Override
+          public Parameter parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new Parameter(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser<Parameter> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<Parameter> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the intent.
+   * Required for the [Intents.UpdateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.UpdateIntent] method. [Intents.CreateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.CreateIntent]
+   * populates the name automatically.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/intents/&lt;Intent ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the intent.
+   * Required for the [Intents.UpdateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.UpdateIntent] method. [Intents.CreateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.CreateIntent]
+   * populates the name automatically.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/intents/&lt;Intent ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int DISPLAY_NAME_FIELD_NUMBER = 2;
+  private volatile java.lang.Object displayName_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the intent, unique within the agent.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The displayName.
+   */
+  @java.lang.Override
+  public java.lang.String getDisplayName() {
+    java.lang.Object ref = displayName_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      displayName_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the intent, unique within the agent.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for displayName.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getDisplayNameBytes() {
+    java.lang.Object ref = displayName_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      displayName_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int TRAINING_PHRASES_FIELD_NUMBER = 3;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase>
+      trainingPhrases_;
+  /**
+   *
+   *
+   * <pre>
+   * The collection of training phrases the agent is trained on to identify the
+   * intent.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase>
+      getTrainingPhrasesList() {
+    return trainingPhrases_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The collection of training phrases the agent is trained on to identify the
+   * intent.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<
+          ? extends com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhraseOrBuilder>
+      getTrainingPhrasesOrBuilderList() {
+    return trainingPhrases_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The collection of training phrases the agent is trained on to identify the
+   * intent.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+   * </code>
+   */
+  @java.lang.Override
+  public int getTrainingPhrasesCount() {
+    return trainingPhrases_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The collection of training phrases the agent is trained on to identify the
+   * intent.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase getTrainingPhrases(
+      int index) {
+    return trainingPhrases_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The collection of training phrases the agent is trained on to identify the
+   * intent.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhraseOrBuilder
+      getTrainingPhrasesOrBuilder(int index) {
+    return trainingPhrases_.get(index);
+  }
+
+  public static final int PARAMETERS_FIELD_NUMBER = 4;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter> parameters_;
+  /**
+   *
+   *
+   * <pre>
+   * The collection of parameters associated with the intent.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter>
+      getParametersList() {
+    return parameters_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The collection of parameters associated with the intent.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.Intent.ParameterOrBuilder>
+      getParametersOrBuilderList() {
+    return parameters_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The collection of parameters associated with the intent.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+   */
+  @java.lang.Override
+  public int getParametersCount() {
+    return parameters_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The collection of parameters associated with the intent.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter getParameters(int index) {
+    return parameters_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The collection of parameters associated with the intent.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Intent.ParameterOrBuilder getParametersOrBuilder(
+      int index) {
+    return parameters_.get(index);
+  }
+
+  public static final int PRIORITY_FIELD_NUMBER = 5;
+  private int priority_;
+  /**
+   *
+   *
+   * <pre>
+   * The priority of this intent. Higher numbers represent higher
+   * priorities.
+   * - If the supplied value is unspecified or 0, the service
+   *   translates the value to 500,000, which corresponds to the
+   *   `Normal` priority in the console.
+   * - If the supplied value is negative, the intent is ignored
+   *   in runtime detect intent requests.
+   * </pre>
+   *
+   * <code>int32 priority = 5;</code>
+   *
+   * @return The priority.
+   */
+  @java.lang.Override
+  public int getPriority() {
+    return priority_;
+  }
+
+  public static final int IS_FALLBACK_FIELD_NUMBER = 6;
+  private boolean isFallback_;
+  /**
+   *
+   *
+   * <pre>
+   * Indicates whether this is a fallback intent. Currently only default
+   * fallback intent is allowed in the agent, which is added upon agent
+   * creation.
+   * Adding training phrases to fallback intent is useful in the case of
+   * requests that are mistakenly matched, since training phrases assigned to
+   * fallback intents act as negative examples that triggers no-match event.
+   * </pre>
+   *
+   * <code>bool is_fallback = 6;</code>
+   *
+   * @return The isFallback.
+   */
+  @java.lang.Override
+  public boolean getIsFallback() {
+    return isFallback_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (!getDisplayNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, displayName_);
+    }
+    for (int i = 0; i < trainingPhrases_.size(); i++) {
+      output.writeMessage(3, trainingPhrases_.get(i));
+    }
+    for (int i = 0; i < parameters_.size(); i++) {
+      output.writeMessage(4, parameters_.get(i));
+    }
+    if (priority_ != 0) {
+      output.writeInt32(5, priority_);
+    }
+    if (isFallback_ != false) {
+      output.writeBool(6, isFallback_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (!getDisplayNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, displayName_);
+    }
+    for (int i = 0; i < trainingPhrases_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, trainingPhrases_.get(i));
+    }
+    for (int i = 0; i < parameters_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, parameters_.get(i));
+    }
+    if (priority_ != 0) {
+      size += com.google.protobuf.CodedOutputStream.computeInt32Size(5, priority_);
+    }
+    if (isFallback_ != false) {
+      size += com.google.protobuf.CodedOutputStream.computeBoolSize(6, isFallback_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.Intent)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.Intent other =
+        (com.google.cloud.dialogflow.cx.v3beta1.Intent) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!getDisplayName().equals(other.getDisplayName())) return false;
+    if (!getTrainingPhrasesList().equals(other.getTrainingPhrasesList())) return false;
+    if (!getParametersList().equals(other.getParametersList())) return false;
+    if (getPriority() != other.getPriority()) return false;
+    if (getIsFallback() != other.getIsFallback()) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + DISPLAY_NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getDisplayName().hashCode();
+    if (getTrainingPhrasesCount() > 0) {
+      hash = (37 * hash) + TRAINING_PHRASES_FIELD_NUMBER;
+      hash = (53 * hash) + getTrainingPhrasesList().hashCode();
+    }
+    if (getParametersCount() > 0) {
+      hash = (37 * hash) + PARAMETERS_FIELD_NUMBER;
+      hash = (53 * hash) + getParametersList().hashCode();
+    }
+    hash = (37 * hash) + PRIORITY_FIELD_NUMBER;
+    hash = (53 * hash) + getPriority();
+    hash = (37 * hash) + IS_FALLBACK_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getIsFallback());
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Intent parseFrom(java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Intent parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Intent parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Intent parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Intent parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Intent parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Intent parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Intent parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Intent parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Intent parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Intent parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Intent parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.cx.v3beta1.Intent prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * An intent represents a user's intent to interact with a conversational agent.
+   * You can provide information for the Dialogflow API to use to match user input
+   * to an intent by adding training phrases (i.e., examples of user input) to
+   * your intent.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Intent}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.Intent)
+      com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.class,
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.Intent.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getTrainingPhrasesFieldBuilder();
+        getParametersFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      displayName_ = "";
+
+      if (trainingPhrasesBuilder_ == null) {
+        trainingPhrases_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        trainingPhrasesBuilder_.clear();
+      }
+      if (parametersBuilder_ == null) {
+        parameters_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000002);
+      } else {
+        parametersBuilder_.clear();
+      }
+      priority_ = 0;
+
+      isFallback_ = false;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.Intent.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent build() {
+      com.google.cloud.dialogflow.cx.v3beta1.Intent result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.Intent result =
+          new com.google.cloud.dialogflow.cx.v3beta1.Intent(this);
+      int from_bitField0_ = bitField0_;
+      result.name_ = name_;
+      result.displayName_ = displayName_;
+      if (trainingPhrasesBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          trainingPhrases_ = java.util.Collections.unmodifiableList(trainingPhrases_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.trainingPhrases_ = trainingPhrases_;
+      } else {
+        result.trainingPhrases_ = trainingPhrasesBuilder_.build();
+      }
+      if (parametersBuilder_ == null) {
+        if (((bitField0_ & 0x00000002) != 0)) {
+          parameters_ = java.util.Collections.unmodifiableList(parameters_);
+          bitField0_ = (bitField0_ & ~0x00000002);
+        }
+        result.parameters_ = parameters_;
+      } else {
+        result.parameters_ = parametersBuilder_.build();
+      }
+      result.priority_ = priority_;
+      result.isFallback_ = isFallback_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.Intent) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.Intent) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.Intent other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.Intent.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getDisplayName().isEmpty()) {
+        displayName_ = other.displayName_;
+        onChanged();
+      }
+      if (trainingPhrasesBuilder_ == null) {
+        if (!other.trainingPhrases_.isEmpty()) {
+          if (trainingPhrases_.isEmpty()) {
+            trainingPhrases_ = other.trainingPhrases_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureTrainingPhrasesIsMutable();
+            trainingPhrases_.addAll(other.trainingPhrases_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.trainingPhrases_.isEmpty()) {
+          if (trainingPhrasesBuilder_.isEmpty()) {
+            trainingPhrasesBuilder_.dispose();
+            trainingPhrasesBuilder_ = null;
+            trainingPhrases_ = other.trainingPhrases_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            trainingPhrasesBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getTrainingPhrasesFieldBuilder()
+                    : null;
+          } else {
+            trainingPhrasesBuilder_.addAllMessages(other.trainingPhrases_);
+          }
+        }
+      }
+      if (parametersBuilder_ == null) {
+        if (!other.parameters_.isEmpty()) {
+          if (parameters_.isEmpty()) {
+            parameters_ = other.parameters_;
+            bitField0_ = (bitField0_ & ~0x00000002);
+          } else {
+            ensureParametersIsMutable();
+            parameters_.addAll(other.parameters_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.parameters_.isEmpty()) {
+          if (parametersBuilder_.isEmpty()) {
+            parametersBuilder_.dispose();
+            parametersBuilder_ = null;
+            parameters_ = other.parameters_;
+            bitField0_ = (bitField0_ & ~0x00000002);
+            parametersBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getParametersFieldBuilder()
+                    : null;
+          } else {
+            parametersBuilder_.addAllMessages(other.parameters_);
+          }
+        }
+      }
+      if (other.getPriority() != 0) {
+        setPriority(other.getPriority());
+      }
+      if (other.getIsFallback() != false) {
+        setIsFallback(other.getIsFallback());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.Intent parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.dialogflow.cx.v3beta1.Intent) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the intent.
+     * Required for the [Intents.UpdateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.UpdateIntent] method. [Intents.CreateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.CreateIntent]
+     * populates the name automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the intent.
+     * Required for the [Intents.UpdateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.UpdateIntent] method. [Intents.CreateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.CreateIntent]
+     * populates the name automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the intent.
+     * Required for the [Intents.UpdateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.UpdateIntent] method. [Intents.CreateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.CreateIntent]
+     * populates the name automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the intent.
+     * Required for the [Intents.UpdateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.UpdateIntent] method. [Intents.CreateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.CreateIntent]
+     * populates the name automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the intent.
+     * Required for the [Intents.UpdateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.UpdateIntent] method. [Intents.CreateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.CreateIntent]
+     * populates the name automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object displayName_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the intent, unique within the agent.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The displayName.
+     */
+    public java.lang.String getDisplayName() {
+      java.lang.Object ref = displayName_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        displayName_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the intent, unique within the agent.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for displayName.
+     */
+    public com.google.protobuf.ByteString getDisplayNameBytes() {
+      java.lang.Object ref = displayName_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        displayName_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the intent, unique within the agent.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The displayName to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDisplayName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      displayName_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the intent, unique within the agent.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearDisplayName() {
+
+      displayName_ = getDefaultInstance().getDisplayName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the intent, unique within the agent.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The bytes for displayName to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDisplayNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      displayName_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase>
+        trainingPhrases_ = java.util.Collections.emptyList();
+
+    private void ensureTrainingPhrasesIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        trainingPhrases_ =
+            new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase>(
+                trainingPhrases_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase,
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhraseOrBuilder>
+        trainingPhrasesBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * The collection of training phrases the agent is trained on to identify the
+     * intent.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase>
+        getTrainingPhrasesList() {
+      if (trainingPhrasesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(trainingPhrases_);
+      } else {
+        return trainingPhrasesBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of training phrases the agent is trained on to identify the
+     * intent.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+     * </code>
+     */
+    public int getTrainingPhrasesCount() {
+      if (trainingPhrasesBuilder_ == null) {
+        return trainingPhrases_.size();
+      } else {
+        return trainingPhrasesBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of training phrases the agent is trained on to identify the
+     * intent.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase getTrainingPhrases(
+        int index) {
+      if (trainingPhrasesBuilder_ == null) {
+        return trainingPhrases_.get(index);
+      } else {
+        return trainingPhrasesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of training phrases the agent is trained on to identify the
+     * intent.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+     * </code>
+     */
+    public Builder setTrainingPhrases(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase value) {
+      if (trainingPhrasesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTrainingPhrasesIsMutable();
+        trainingPhrases_.set(index, value);
+        onChanged();
+      } else {
+        trainingPhrasesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of training phrases the agent is trained on to identify the
+     * intent.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+     * </code>
+     */
+    public Builder setTrainingPhrases(
+        int index,
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Builder builderForValue) {
+      if (trainingPhrasesBuilder_ == null) {
+        ensureTrainingPhrasesIsMutable();
+        trainingPhrases_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        trainingPhrasesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of training phrases the agent is trained on to identify the
+     * intent.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+     * </code>
+     */
+    public Builder addTrainingPhrases(
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase value) {
+      if (trainingPhrasesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTrainingPhrasesIsMutable();
+        trainingPhrases_.add(value);
+        onChanged();
+      } else {
+        trainingPhrasesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of training phrases the agent is trained on to identify the
+     * intent.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+     * </code>
+     */
+    public Builder addTrainingPhrases(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase value) {
+      if (trainingPhrasesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTrainingPhrasesIsMutable();
+        trainingPhrases_.add(index, value);
+        onChanged();
+      } else {
+        trainingPhrasesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of training phrases the agent is trained on to identify the
+     * intent.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+     * </code>
+     */
+    public Builder addTrainingPhrases(
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Builder builderForValue) {
+      if (trainingPhrasesBuilder_ == null) {
+        ensureTrainingPhrasesIsMutable();
+        trainingPhrases_.add(builderForValue.build());
+        onChanged();
+      } else {
+        trainingPhrasesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of training phrases the agent is trained on to identify the
+     * intent.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+     * </code>
+     */
+    public Builder addTrainingPhrases(
+        int index,
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Builder builderForValue) {
+      if (trainingPhrasesBuilder_ == null) {
+        ensureTrainingPhrasesIsMutable();
+        trainingPhrases_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        trainingPhrasesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of training phrases the agent is trained on to identify the
+     * intent.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+     * </code>
+     */
+    public Builder addAllTrainingPhrases(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase>
+            values) {
+      if (trainingPhrasesBuilder_ == null) {
+        ensureTrainingPhrasesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, trainingPhrases_);
+        onChanged();
+      } else {
+        trainingPhrasesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of training phrases the agent is trained on to identify the
+     * intent.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+     * </code>
+     */
+    public Builder clearTrainingPhrases() {
+      if (trainingPhrasesBuilder_ == null) {
+        trainingPhrases_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        trainingPhrasesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of training phrases the agent is trained on to identify the
+     * intent.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+     * </code>
+     */
+    public Builder removeTrainingPhrases(int index) {
+      if (trainingPhrasesBuilder_ == null) {
+        ensureTrainingPhrasesIsMutable();
+        trainingPhrases_.remove(index);
+        onChanged();
+      } else {
+        trainingPhrasesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of training phrases the agent is trained on to identify the
+     * intent.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Builder
+        getTrainingPhrasesBuilder(int index) {
+      return getTrainingPhrasesFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of training phrases the agent is trained on to identify the
+     * intent.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhraseOrBuilder
+        getTrainingPhrasesOrBuilder(int index) {
+      if (trainingPhrasesBuilder_ == null) {
+        return trainingPhrases_.get(index);
+      } else {
+        return trainingPhrasesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of training phrases the agent is trained on to identify the
+     * intent.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+     * </code>
+     */
+    public java.util.List<
+            ? extends com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhraseOrBuilder>
+        getTrainingPhrasesOrBuilderList() {
+      if (trainingPhrasesBuilder_ != null) {
+        return trainingPhrasesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(trainingPhrases_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of training phrases the agent is trained on to identify the
+     * intent.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Builder
+        addTrainingPhrasesBuilder() {
+      return getTrainingPhrasesFieldBuilder()
+          .addBuilder(
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of training phrases the agent is trained on to identify the
+     * intent.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Builder
+        addTrainingPhrasesBuilder(int index) {
+      return getTrainingPhrasesFieldBuilder()
+          .addBuilder(
+              index,
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of training phrases the agent is trained on to identify the
+     * intent.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Builder>
+        getTrainingPhrasesBuilderList() {
+      return getTrainingPhrasesFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase,
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhraseOrBuilder>
+        getTrainingPhrasesFieldBuilder() {
+      if (trainingPhrasesBuilder_ == null) {
+        trainingPhrasesBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase,
+                com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhraseOrBuilder>(
+                trainingPhrases_,
+                ((bitField0_ & 0x00000001) != 0),
+                getParentForChildren(),
+                isClean());
+        trainingPhrases_ = null;
+      }
+      return trainingPhrasesBuilder_;
+    }
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter> parameters_ =
+        java.util.Collections.emptyList();
+
+    private void ensureParametersIsMutable() {
+      if (!((bitField0_ & 0x00000002) != 0)) {
+        parameters_ =
+            new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter>(
+                parameters_);
+        bitField0_ |= 0x00000002;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter,
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.ParameterOrBuilder>
+        parametersBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters associated with the intent.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter>
+        getParametersList() {
+      if (parametersBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(parameters_);
+      } else {
+        return parametersBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters associated with the intent.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+     */
+    public int getParametersCount() {
+      if (parametersBuilder_ == null) {
+        return parameters_.size();
+      } else {
+        return parametersBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters associated with the intent.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter getParameters(int index) {
+      if (parametersBuilder_ == null) {
+        return parameters_.get(index);
+      } else {
+        return parametersBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters associated with the intent.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+     */
+    public Builder setParameters(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter value) {
+      if (parametersBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureParametersIsMutable();
+        parameters_.set(index, value);
+        onChanged();
+      } else {
+        parametersBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters associated with the intent.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+     */
+    public Builder setParameters(
+        int index,
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter.Builder builderForValue) {
+      if (parametersBuilder_ == null) {
+        ensureParametersIsMutable();
+        parameters_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        parametersBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters associated with the intent.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+     */
+    public Builder addParameters(com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter value) {
+      if (parametersBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureParametersIsMutable();
+        parameters_.add(value);
+        onChanged();
+      } else {
+        parametersBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters associated with the intent.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+     */
+    public Builder addParameters(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter value) {
+      if (parametersBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureParametersIsMutable();
+        parameters_.add(index, value);
+        onChanged();
+      } else {
+        parametersBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters associated with the intent.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+     */
+    public Builder addParameters(
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter.Builder builderForValue) {
+      if (parametersBuilder_ == null) {
+        ensureParametersIsMutable();
+        parameters_.add(builderForValue.build());
+        onChanged();
+      } else {
+        parametersBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters associated with the intent.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+     */
+    public Builder addParameters(
+        int index,
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter.Builder builderForValue) {
+      if (parametersBuilder_ == null) {
+        ensureParametersIsMutable();
+        parameters_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        parametersBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters associated with the intent.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+     */
+    public Builder addAllParameters(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter>
+            values) {
+      if (parametersBuilder_ == null) {
+        ensureParametersIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, parameters_);
+        onChanged();
+      } else {
+        parametersBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters associated with the intent.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+     */
+    public Builder clearParameters() {
+      if (parametersBuilder_ == null) {
+        parameters_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000002);
+        onChanged();
+      } else {
+        parametersBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters associated with the intent.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+     */
+    public Builder removeParameters(int index) {
+      if (parametersBuilder_ == null) {
+        ensureParametersIsMutable();
+        parameters_.remove(index);
+        onChanged();
+      } else {
+        parametersBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters associated with the intent.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter.Builder getParametersBuilder(
+        int index) {
+      return getParametersFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters associated with the intent.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent.ParameterOrBuilder getParametersOrBuilder(
+        int index) {
+      if (parametersBuilder_ == null) {
+        return parameters_.get(index);
+      } else {
+        return parametersBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters associated with the intent.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+     */
+    public java.util.List<
+            ? extends com.google.cloud.dialogflow.cx.v3beta1.Intent.ParameterOrBuilder>
+        getParametersOrBuilderList() {
+      if (parametersBuilder_ != null) {
+        return parametersBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(parameters_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters associated with the intent.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter.Builder addParametersBuilder() {
+      return getParametersFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters associated with the intent.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter.Builder addParametersBuilder(
+        int index) {
+      return getParametersFieldBuilder()
+          .addBuilder(
+              index, com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters associated with the intent.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter.Builder>
+        getParametersBuilderList() {
+      return getParametersFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter,
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.ParameterOrBuilder>
+        getParametersFieldBuilder() {
+      if (parametersBuilder_ == null) {
+        parametersBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter,
+                com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.Intent.ParameterOrBuilder>(
+                parameters_, ((bitField0_ & 0x00000002) != 0), getParentForChildren(), isClean());
+        parameters_ = null;
+      }
+      return parametersBuilder_;
+    }
+
+    private int priority_;
+    /**
+     *
+     *
+     * <pre>
+     * The priority of this intent. Higher numbers represent higher
+     * priorities.
+     * - If the supplied value is unspecified or 0, the service
+     *   translates the value to 500,000, which corresponds to the
+     *   `Normal` priority in the console.
+     * - If the supplied value is negative, the intent is ignored
+     *   in runtime detect intent requests.
+     * </pre>
+     *
+     * <code>int32 priority = 5;</code>
+     *
+     * @return The priority.
+     */
+    @java.lang.Override
+    public int getPriority() {
+      return priority_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The priority of this intent. Higher numbers represent higher
+     * priorities.
+     * - If the supplied value is unspecified or 0, the service
+     *   translates the value to 500,000, which corresponds to the
+     *   `Normal` priority in the console.
+     * - If the supplied value is negative, the intent is ignored
+     *   in runtime detect intent requests.
+     * </pre>
+     *
+     * <code>int32 priority = 5;</code>
+     *
+     * @param value The priority to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPriority(int value) {
+
+      priority_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The priority of this intent. Higher numbers represent higher
+     * priorities.
+     * - If the supplied value is unspecified or 0, the service
+     *   translates the value to 500,000, which corresponds to the
+     *   `Normal` priority in the console.
+     * - If the supplied value is negative, the intent is ignored
+     *   in runtime detect intent requests.
+     * </pre>
+     *
+     * <code>int32 priority = 5;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPriority() {
+
+      priority_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private boolean isFallback_;
+    /**
+     *
+     *
+     * <pre>
+     * Indicates whether this is a fallback intent. Currently only default
+     * fallback intent is allowed in the agent, which is added upon agent
+     * creation.
+     * Adding training phrases to fallback intent is useful in the case of
+     * requests that are mistakenly matched, since training phrases assigned to
+     * fallback intents act as negative examples that triggers no-match event.
+     * </pre>
+     *
+     * <code>bool is_fallback = 6;</code>
+     *
+     * @return The isFallback.
+     */
+    @java.lang.Override
+    public boolean getIsFallback() {
+      return isFallback_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates whether this is a fallback intent. Currently only default
+     * fallback intent is allowed in the agent, which is added upon agent
+     * creation.
+     * Adding training phrases to fallback intent is useful in the case of
+     * requests that are mistakenly matched, since training phrases assigned to
+     * fallback intents act as negative examples that triggers no-match event.
+     * </pre>
+     *
+     * <code>bool is_fallback = 6;</code>
+     *
+     * @param value The isFallback to set.
+     * @return This builder for chaining.
+     */
+    public Builder setIsFallback(boolean value) {
+
+      isFallback_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates whether this is a fallback intent. Currently only default
+     * fallback intent is allowed in the agent, which is added upon agent
+     * creation.
+     * Adding training phrases to fallback intent is useful in the case of
+     * requests that are mistakenly matched, since training phrases assigned to
+     * fallback intents act as negative examples that triggers no-match event.
+     * </pre>
+     *
+     * <code>bool is_fallback = 6;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearIsFallback() {
+
+      isFallback_ = false;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.Intent)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.Intent)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.Intent DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.Intent();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Intent getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<Intent> PARSER =
+      new com.google.protobuf.AbstractParser<Intent>() {
+        @java.lang.Override
+        public Intent parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new Intent(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<Intent> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<Intent> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Intent getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentInput.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentInput.java
new file mode 100644
index 000000000..143a23eaa
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentInput.java
@@ -0,0 +1,666 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Represents the intent to trigger programmatically rather than as a result of
+ * natural language processing.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.IntentInput}
+ */
+public final class IntentInput extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.IntentInput)
+    IntentInputOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use IntentInput.newBuilder() to construct.
+  private IntentInput(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private IntentInput() {
+    intent_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new IntentInput();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private IntentInput(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              intent_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_IntentInput_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_IntentInput_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.IntentInput.class,
+            com.google.cloud.dialogflow.cx.v3beta1.IntentInput.Builder.class);
+  }
+
+  public static final int INTENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object intent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The unique identifier of the intent.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/intents/&lt;Intent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string intent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The intent.
+   */
+  @java.lang.Override
+  public java.lang.String getIntent() {
+    java.lang.Object ref = intent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      intent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The unique identifier of the intent.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/intents/&lt;Intent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string intent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for intent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getIntentBytes() {
+    java.lang.Object ref = intent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      intent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getIntentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, intent_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getIntentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, intent_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.IntentInput)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.IntentInput other =
+        (com.google.cloud.dialogflow.cx.v3beta1.IntentInput) obj;
+
+    if (!getIntent().equals(other.getIntent())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + INTENT_FIELD_NUMBER;
+    hash = (53 * hash) + getIntent().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.IntentInput parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.IntentInput parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.IntentInput parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.IntentInput parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.IntentInput parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.IntentInput parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.IntentInput parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.IntentInput parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.IntentInput parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.IntentInput parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.IntentInput parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.IntentInput parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.cx.v3beta1.IntentInput prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents the intent to trigger programmatically rather than as a result of
+   * natural language processing.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.IntentInput}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.IntentInput)
+      com.google.cloud.dialogflow.cx.v3beta1.IntentInputOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_IntentInput_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_IntentInput_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.IntentInput.class,
+              com.google.cloud.dialogflow.cx.v3beta1.IntentInput.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.IntentInput.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      intent_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_IntentInput_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.IntentInput getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentInput.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.IntentInput build() {
+      com.google.cloud.dialogflow.cx.v3beta1.IntentInput result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.IntentInput buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.IntentInput result =
+          new com.google.cloud.dialogflow.cx.v3beta1.IntentInput(this);
+      result.intent_ = intent_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.IntentInput) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.IntentInput) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.IntentInput other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.IntentInput.getDefaultInstance())
+        return this;
+      if (!other.getIntent().isEmpty()) {
+        intent_ = other.intent_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.IntentInput parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.IntentInput) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object intent_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The unique identifier of the intent.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string intent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The intent.
+     */
+    public java.lang.String getIntent() {
+      java.lang.Object ref = intent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        intent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The unique identifier of the intent.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string intent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for intent.
+     */
+    public com.google.protobuf.ByteString getIntentBytes() {
+      java.lang.Object ref = intent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        intent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The unique identifier of the intent.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string intent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The intent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setIntent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      intent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The unique identifier of the intent.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string intent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearIntent() {
+
+      intent_ = getDefaultInstance().getIntent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The unique identifier of the intent.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string intent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for intent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setIntentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      intent_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.IntentInput)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.IntentInput)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.IntentInput DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.IntentInput();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.IntentInput getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<IntentInput> PARSER =
+      new com.google.protobuf.AbstractParser<IntentInput>() {
+        @java.lang.Override
+        public IntentInput parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new IntentInput(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<IntentInput> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<IntentInput> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.IntentInput getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentInputOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentInputOrBuilder.java
new file mode 100644
index 000000000..a2392e31b
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentInputOrBuilder.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface IntentInputOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.IntentInput)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The unique identifier of the intent.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/intents/&lt;Intent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string intent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The intent.
+   */
+  java.lang.String getIntent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The unique identifier of the intent.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/intents/&lt;Intent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string intent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for intent.
+   */
+  com.google.protobuf.ByteString getIntentBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentName.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentName.java
new file mode 100644
index 000000000..5fe2d5727
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentName.java
@@ -0,0 +1,242 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+/** AUTO-GENERATED DOCUMENTATION AND CLASS */
+@javax.annotation.Generated("by GAPIC protoc plugin")
+public class IntentName implements ResourceName {
+
+  private static final PathTemplate PATH_TEMPLATE =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/agents/{agent}/intents/{intent}");
+
+  private volatile Map<String, String> fieldValuesMap;
+
+  private final String project;
+  private final String location;
+  private final String agent;
+  private final String intent;
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public String getAgent() {
+    return agent;
+  }
+
+  public String getIntent() {
+    return intent;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  private IntentName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    agent = Preconditions.checkNotNull(builder.getAgent());
+    intent = Preconditions.checkNotNull(builder.getIntent());
+  }
+
+  public static IntentName of(String project, String location, String agent, String intent) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setIntent(intent)
+        .build();
+  }
+
+  public static String format(String project, String location, String agent, String intent) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setIntent(intent)
+        .build()
+        .toString();
+  }
+
+  public static IntentName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    Map<String, String> matchMap =
+        PATH_TEMPLATE.validatedMatch(
+            formattedString, "IntentName.parse: formattedString not in valid format");
+    return of(
+        matchMap.get("project"),
+        matchMap.get("location"),
+        matchMap.get("agent"),
+        matchMap.get("intent"));
+  }
+
+  public static List<IntentName> parseList(List<String> formattedStrings) {
+    List<IntentName> list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List<String> toStringList(List<IntentName> values) {
+    List<String> list = new ArrayList<String>(values.size());
+    for (IntentName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PATH_TEMPLATE.matches(formattedString);
+  }
+
+  public Map<String, String> getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder<String, String> fieldMapBuilder = ImmutableMap.builder();
+          fieldMapBuilder.put("project", project);
+          fieldMapBuilder.put("location", location);
+          fieldMapBuilder.put("agent", agent);
+          fieldMapBuilder.put("intent", intent);
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return PATH_TEMPLATE.instantiate(
+        "project", project, "location", location, "agent", agent, "intent", intent);
+  }
+
+  /** Builder for IntentName. */
+  public static class Builder {
+
+    private String project;
+    private String location;
+    private String agent;
+    private String intent;
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getAgent() {
+      return agent;
+    }
+
+    public String getIntent() {
+      return intent;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public Builder setAgent(String agent) {
+      this.agent = agent;
+      return this;
+    }
+
+    public Builder setIntent(String intent) {
+      this.intent = intent;
+      return this;
+    }
+
+    private Builder() {}
+
+    private Builder(IntentName intentName) {
+      project = intentName.project;
+      location = intentName.location;
+      agent = intentName.agent;
+      intent = intentName.intent;
+    }
+
+    public IntentName build() {
+      return new IntentName(this);
+    }
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o instanceof IntentName) {
+      IntentName that = (IntentName) o;
+      return (this.project.equals(that.project))
+          && (this.location.equals(that.location))
+          && (this.agent.equals(that.agent))
+          && (this.intent.equals(that.intent));
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= project.hashCode();
+    h *= 1000003;
+    h ^= location.hashCode();
+    h *= 1000003;
+    h ^= agent.hashCode();
+    h *= 1000003;
+    h ^= intent.hashCode();
+    return h;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentOrBuilder.java
new file mode 100644
index 000000000..574e4c551
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentOrBuilder.java
@@ -0,0 +1,237 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/intent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface IntentOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.Intent)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the intent.
+   * Required for the [Intents.UpdateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.UpdateIntent] method. [Intents.CreateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.CreateIntent]
+   * populates the name automatically.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/intents/&lt;Intent ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the intent.
+   * Required for the [Intents.UpdateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.UpdateIntent] method. [Intents.CreateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.CreateIntent]
+   * populates the name automatically.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/intents/&lt;Intent ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the intent, unique within the agent.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The displayName.
+   */
+  java.lang.String getDisplayName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the intent, unique within the agent.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for displayName.
+   */
+  com.google.protobuf.ByteString getDisplayNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The collection of training phrases the agent is trained on to identify the
+   * intent.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+   * </code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase>
+      getTrainingPhrasesList();
+  /**
+   *
+   *
+   * <pre>
+   * The collection of training phrases the agent is trained on to identify the
+   * intent.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase getTrainingPhrases(int index);
+  /**
+   *
+   *
+   * <pre>
+   * The collection of training phrases the agent is trained on to identify the
+   * intent.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+   * </code>
+   */
+  int getTrainingPhrasesCount();
+  /**
+   *
+   *
+   * <pre>
+   * The collection of training phrases the agent is trained on to identify the
+   * intent.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+   * </code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhraseOrBuilder>
+      getTrainingPhrasesOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * The collection of training phrases the agent is trained on to identify the
+   * intent.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase training_phrases = 3;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhraseOrBuilder getTrainingPhrasesOrBuilder(
+      int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * The collection of parameters associated with the intent.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter> getParametersList();
+  /**
+   *
+   *
+   * <pre>
+   * The collection of parameters associated with the intent.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Intent.Parameter getParameters(int index);
+  /**
+   *
+   *
+   * <pre>
+   * The collection of parameters associated with the intent.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+   */
+  int getParametersCount();
+  /**
+   *
+   *
+   * <pre>
+   * The collection of parameters associated with the intent.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.Intent.ParameterOrBuilder>
+      getParametersOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * The collection of parameters associated with the intent.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent.Parameter parameters = 4;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Intent.ParameterOrBuilder getParametersOrBuilder(
+      int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * The priority of this intent. Higher numbers represent higher
+   * priorities.
+   * - If the supplied value is unspecified or 0, the service
+   *   translates the value to 500,000, which corresponds to the
+   *   `Normal` priority in the console.
+   * - If the supplied value is negative, the intent is ignored
+   *   in runtime detect intent requests.
+   * </pre>
+   *
+   * <code>int32 priority = 5;</code>
+   *
+   * @return The priority.
+   */
+  int getPriority();
+
+  /**
+   *
+   *
+   * <pre>
+   * Indicates whether this is a fallback intent. Currently only default
+   * fallback intent is allowed in the agent, which is added upon agent
+   * creation.
+   * Adding training phrases to fallback intent is useful in the case of
+   * requests that are mistakenly matched, since training phrases assigned to
+   * fallback intents act as negative examples that triggers no-match event.
+   * </pre>
+   *
+   * <code>bool is_fallback = 6;</code>
+   *
+   * @return The isFallback.
+   */
+  boolean getIsFallback();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentProto.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentProto.java
new file mode 100644
index 000000000..9376c6e21
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentProto.java
@@ -0,0 +1,276 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/intent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public final class IntentProto {
+  private IntentProto() {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistryLite registry) {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions((com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_TrainingPhrase_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_TrainingPhrase_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_TrainingPhrase_Part_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_TrainingPhrase_Part_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_Parameter_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_Parameter_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListIntentsRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListIntentsRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListIntentsResponse_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListIntentsResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_GetIntentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_GetIntentRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_CreateIntentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_CreateIntentRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateIntentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateIntentRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteIntentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteIntentRequest_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
+    return descriptor;
+  }
+
+  private static com.google.protobuf.Descriptors.FileDescriptor descriptor;
+
+  static {
+    java.lang.String[] descriptorData = {
+      "\n/google/cloud/dialogflow/cx/v3beta1/int"
+          + "ent.proto\022\"google.cloud.dialogflow.cx.v3"
+          + "beta1\032\034google/api/annotations.proto\032\027goo"
+          + "gle/api/client.proto\032\037google/api/field_b"
+          + "ehavior.proto\032\031google/api/resource.proto"
+          + "\032\033google/protobuf/empty.proto\032 google/pr"
+          + "otobuf/field_mask.proto\"\223\005\n\006Intent\022\014\n\004na"
+          + "me\030\001 \001(\t\022\031\n\014display_name\030\002 \001(\tB\003\340A\002\022S\n\020t"
+          + "raining_phrases\030\003 \003(\01329.google.cloud.dia"
+          + "logflow.cx.v3beta1.Intent.TrainingPhrase"
+          + "\022H\n\nparameters\030\004 \003(\01324.google.cloud.dial"
+          + "ogflow.cx.v3beta1.Intent.Parameter\022\020\n\010pr"
+          + "iority\030\005 \001(\005\022\023\n\013is_fallback\030\006 \001(\010\032\267\001\n\016Tr"
+          + "ainingPhrase\022\n\n\002id\030\001 \001(\t\022R\n\005parts\030\002 \003(\0132"
+          + ">.google.cloud.dialogflow.cx.v3beta1.Int"
+          + "ent.TrainingPhrase.PartB\003\340A\002\022\024\n\014repeat_c"
+          + "ount\030\003 \001(\005\032/\n\004Part\022\021\n\004text\030\001 \001(\tB\003\340A\002\022\024\n"
+          + "\014parameter_id\030\002 \001(\t\032p\n\tParameter\022\017\n\002id\030\001"
+          + " \001(\tB\003\340A\002\022A\n\013entity_type\030\002 \001(\tB,\340A\002\372A&\n$"
+          + "dialogflow.googleapis.com/EntityType\022\017\n\007"
+          + "is_list\030\003 \001(\010:n\352Ak\n dialogflow.googleapi"
+          + "s.com/Intent\022Gprojects/{project}/locatio"
+          + "ns/{location}/agents/{agent}/intents/{in"
+          + "tent}\"\321\001\n\022ListIntentsRequest\0228\n\006parent\030\001"
+          + " \001(\tB(\340A\002\372A\"\022 dialogflow.googleapis.com/"
+          + "Intent\022\025\n\rlanguage_code\030\002 \001(\t\022C\n\013intent_"
+          + "view\030\005 \001(\0162..google.cloud.dialogflow.cx."
+          + "v3beta1.IntentView\022\021\n\tpage_size\030\003 \001(\005\022\022\n"
+          + "\npage_token\030\004 \001(\t\"k\n\023ListIntentsResponse"
+          + "\022;\n\007intents\030\001 \003(\0132*.google.cloud.dialogf"
+          + "low.cx.v3beta1.Intent\022\027\n\017next_page_token"
+          + "\030\002 \001(\t\"a\n\020GetIntentRequest\0226\n\004name\030\001 \001(\t"
+          + "B(\340A\002\372A\"\n dialogflow.googleapis.com/Inte"
+          + "nt\022\025\n\rlanguage_code\030\002 \001(\t\"\247\001\n\023CreateInte"
+          + "ntRequest\0228\n\006parent\030\001 \001(\tB(\340A\002\372A\"\022 dialo"
+          + "gflow.googleapis.com/Intent\022?\n\006intent\030\002 "
+          + "\001(\0132*.google.cloud.dialogflow.cx.v3beta1"
+          + ".IntentB\003\340A\002\022\025\n\rlanguage_code\030\003 \001(\t\"\236\001\n\023"
+          + "UpdateIntentRequest\022?\n\006intent\030\001 \001(\0132*.go"
+          + "ogle.cloud.dialogflow.cx.v3beta1.IntentB"
+          + "\003\340A\002\022\025\n\rlanguage_code\030\002 \001(\t\022/\n\013update_ma"
+          + "sk\030\003 \001(\0132\032.google.protobuf.FieldMask\"M\n\023"
+          + "DeleteIntentRequest\0226\n\004name\030\001 \001(\tB(\340A\002\372A"
+          + "\"\n dialogflow.googleapis.com/Intent*X\n\nI"
+          + "ntentView\022\033\n\027INTENT_VIEW_UNSPECIFIED\020\000\022\027"
+          + "\n\023INTENT_VIEW_PARTIAL\020\001\022\024\n\020INTENT_VIEW_F"
+          + "ULL\020\0022\344\010\n\007Intents\022\312\001\n\013ListIntents\0226.goog"
+          + "le.cloud.dialogflow.cx.v3beta1.ListInten"
+          + "tsRequest\0327.google.cloud.dialogflow.cx.v"
+          + "3beta1.ListIntentsResponse\"J\202\323\344\223\002;\0229/v3b"
+          + "eta1/{parent=projects/*/locations/*/agen"
+          + "ts/*}/intents\332A\006parent\022\267\001\n\tGetIntent\0224.g"
+          + "oogle.cloud.dialogflow.cx.v3beta1.GetInt"
+          + "entRequest\032*.google.cloud.dialogflow.cx."
+          + "v3beta1.Intent\"H\202\323\344\223\002;\0229/v3beta1/{name=p"
+          + "rojects/*/locations/*/agents/*/intents/*"
+          + "}\332A\004name\022\316\001\n\014CreateIntent\0227.google.cloud"
+          + ".dialogflow.cx.v3beta1.CreateIntentReque"
+          + "st\032*.google.cloud.dialogflow.cx.v3beta1."
+          + "Intent\"Y\202\323\344\223\002C\"9/v3beta1/{parent=project"
+          + "s/*/locations/*/agents/*}/intents:\006inten"
+          + "t\332A\rparent,intent\022\332\001\n\014UpdateIntent\0227.goo"
+          + "gle.cloud.dialogflow.cx.v3beta1.UpdateIn"
+          + "tentRequest\032*.google.cloud.dialogflow.cx"
+          + ".v3beta1.Intent\"e\202\323\344\223\002J2@/v3beta1/{inten"
+          + "t.name=projects/*/locations/*/agents/*/i"
+          + "ntents/*}:\006intent\332A\022intent,update_mask\022\251"
+          + "\001\n\014DeleteIntent\0227.google.cloud.dialogflo"
+          + "w.cx.v3beta1.DeleteIntentRequest\032\026.googl"
+          + "e.protobuf.Empty\"H\202\323\344\223\002;*9/v3beta1/{name"
+          + "=projects/*/locations/*/agents/*/intents"
+          + "/*}\332A\004name\032x\312A\031dialogflow.googleapis.com"
+          + "\322AYhttps://www.googleapis.com/auth/cloud"
+          + "-platform,https://www.googleapis.com/aut"
+          + "h/dialogflowB\252\001\n&com.google.cloud.dialog"
+          + "flow.cx.v3beta1B\013IntentProtoP\001ZDgoogle.g"
+          + "olang.org/genproto/googleapis/cloud/dial"
+          + "ogflow/cx/v3beta1;cx\370\001\001\242\002\002DF\252\002\"Google.Cl"
+          + "oud.Dialogflow.Cx.V3Beta1b\006proto3"
+    };
+    descriptor =
+        com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
+            descriptorData,
+            new com.google.protobuf.Descriptors.FileDescriptor[] {
+              com.google.api.AnnotationsProto.getDescriptor(),
+              com.google.api.ClientProto.getDescriptor(),
+              com.google.api.FieldBehaviorProto.getDescriptor(),
+              com.google.api.ResourceProto.getDescriptor(),
+              com.google.protobuf.EmptyProto.getDescriptor(),
+              com.google.protobuf.FieldMaskProto.getDescriptor(),
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_descriptor =
+        getDescriptor().getMessageTypes().get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_descriptor,
+            new java.lang.String[] {
+              "Name", "DisplayName", "TrainingPhrases", "Parameters", "Priority", "IsFallback",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_TrainingPhrase_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_TrainingPhrase_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_TrainingPhrase_descriptor,
+            new java.lang.String[] {
+              "Id", "Parts", "RepeatCount",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_TrainingPhrase_Part_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_TrainingPhrase_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_TrainingPhrase_Part_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_TrainingPhrase_Part_descriptor,
+            new java.lang.String[] {
+              "Text", "ParameterId",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_Parameter_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_descriptor
+            .getNestedTypes()
+            .get(1);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_Parameter_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_Intent_Parameter_descriptor,
+            new java.lang.String[] {
+              "Id", "EntityType", "IsList",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListIntentsRequest_descriptor =
+        getDescriptor().getMessageTypes().get(1);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListIntentsRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ListIntentsRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "LanguageCode", "IntentView", "PageSize", "PageToken",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListIntentsResponse_descriptor =
+        getDescriptor().getMessageTypes().get(2);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListIntentsResponse_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ListIntentsResponse_descriptor,
+            new java.lang.String[] {
+              "Intents", "NextPageToken",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_GetIntentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(3);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_GetIntentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_GetIntentRequest_descriptor,
+            new java.lang.String[] {
+              "Name", "LanguageCode",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_CreateIntentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(4);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_CreateIntentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_CreateIntentRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "Intent", "LanguageCode",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateIntentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(5);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateIntentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateIntentRequest_descriptor,
+            new java.lang.String[] {
+              "Intent", "LanguageCode", "UpdateMask",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteIntentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(6);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteIntentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteIntentRequest_descriptor,
+            new java.lang.String[] {
+              "Name",
+            });
+    com.google.protobuf.ExtensionRegistry registry =
+        com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.ClientProto.defaultHost);
+    registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
+    registry.add(com.google.api.AnnotationsProto.http);
+    registry.add(com.google.api.ClientProto.methodSignature);
+    registry.add(com.google.api.ClientProto.oauthScopes);
+    registry.add(com.google.api.ResourceProto.resource);
+    registry.add(com.google.api.ResourceProto.resourceReference);
+    com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
+        descriptor, registry);
+    com.google.api.AnnotationsProto.getDescriptor();
+    com.google.api.ClientProto.getDescriptor();
+    com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.api.ResourceProto.getDescriptor();
+    com.google.protobuf.EmptyProto.getDescriptor();
+    com.google.protobuf.FieldMaskProto.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentView.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentView.java
new file mode 100644
index 000000000..89d8ca4c2
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentView.java
@@ -0,0 +1,178 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/intent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Represents the options for views of an intent.
+ * An intent can be a sizable object. Therefore, we provide a resource view that
+ * does not return training phrases in the response.
+ * </pre>
+ *
+ * Protobuf enum {@code google.cloud.dialogflow.cx.v3beta1.IntentView}
+ */
+public enum IntentView implements com.google.protobuf.ProtocolMessageEnum {
+  /**
+   *
+   *
+   * <pre>
+   * Not specified. Treated as INTENT_VIEW_FULL.
+   * </pre>
+   *
+   * <code>INTENT_VIEW_UNSPECIFIED = 0;</code>
+   */
+  INTENT_VIEW_UNSPECIFIED(0),
+  /**
+   *
+   *
+   * <pre>
+   * Training phrases field is not populated in the response.
+   * </pre>
+   *
+   * <code>INTENT_VIEW_PARTIAL = 1;</code>
+   */
+  INTENT_VIEW_PARTIAL(1),
+  /**
+   *
+   *
+   * <pre>
+   * All fields are populated.
+   * </pre>
+   *
+   * <code>INTENT_VIEW_FULL = 2;</code>
+   */
+  INTENT_VIEW_FULL(2),
+  UNRECOGNIZED(-1),
+  ;
+
+  /**
+   *
+   *
+   * <pre>
+   * Not specified. Treated as INTENT_VIEW_FULL.
+   * </pre>
+   *
+   * <code>INTENT_VIEW_UNSPECIFIED = 0;</code>
+   */
+  public static final int INTENT_VIEW_UNSPECIFIED_VALUE = 0;
+  /**
+   *
+   *
+   * <pre>
+   * Training phrases field is not populated in the response.
+   * </pre>
+   *
+   * <code>INTENT_VIEW_PARTIAL = 1;</code>
+   */
+  public static final int INTENT_VIEW_PARTIAL_VALUE = 1;
+  /**
+   *
+   *
+   * <pre>
+   * All fields are populated.
+   * </pre>
+   *
+   * <code>INTENT_VIEW_FULL = 2;</code>
+   */
+  public static final int INTENT_VIEW_FULL_VALUE = 2;
+
+  public final int getNumber() {
+    if (this == UNRECOGNIZED) {
+      throw new java.lang.IllegalArgumentException(
+          "Can't get the number of an unknown enum value.");
+    }
+    return value;
+  }
+
+  /**
+   * @param value The numeric wire value of the corresponding enum entry.
+   * @return The enum associated with the given numeric wire value.
+   * @deprecated Use {@link #forNumber(int)} instead.
+   */
+  @java.lang.Deprecated
+  public static IntentView valueOf(int value) {
+    return forNumber(value);
+  }
+
+  /**
+   * @param value The numeric wire value of the corresponding enum entry.
+   * @return The enum associated with the given numeric wire value.
+   */
+  public static IntentView forNumber(int value) {
+    switch (value) {
+      case 0:
+        return INTENT_VIEW_UNSPECIFIED;
+      case 1:
+        return INTENT_VIEW_PARTIAL;
+      case 2:
+        return INTENT_VIEW_FULL;
+      default:
+        return null;
+    }
+  }
+
+  public static com.google.protobuf.Internal.EnumLiteMap<IntentView> internalGetValueMap() {
+    return internalValueMap;
+  }
+
+  private static final com.google.protobuf.Internal.EnumLiteMap<IntentView> internalValueMap =
+      new com.google.protobuf.Internal.EnumLiteMap<IntentView>() {
+        public IntentView findValueByNumber(int number) {
+          return IntentView.forNumber(number);
+        }
+      };
+
+  public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+    if (this == UNRECOGNIZED) {
+      throw new java.lang.IllegalStateException(
+          "Can't get the descriptor of an unrecognized enum value.");
+    }
+    return getDescriptor().getValues().get(ordinal());
+  }
+
+  public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+    return getDescriptor();
+  }
+
+  public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.IntentProto.getDescriptor().getEnumTypes().get(0);
+  }
+
+  private static final IntentView[] VALUES = values();
+
+  public static IntentView valueOf(com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+    if (desc.getType() != getDescriptor()) {
+      throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
+    }
+    if (desc.getIndex() == -1) {
+      return UNRECOGNIZED;
+    }
+    return VALUES[desc.getIndex()];
+  }
+
+  private final int value;
+
+  private IntentView(int value) {
+    this.value = value;
+  }
+
+  // @@protoc_insertion_point(enum_scope:google.cloud.dialogflow.cx.v3beta1.IntentView)
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/InteractiveVoiceResponseProto.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/InteractiveVoiceResponseProto.java
new file mode 100644
index 000000000..13d78264b
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/InteractiveVoiceResponseProto.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/ivr.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public final class InteractiveVoiceResponseProto {
+  private InteractiveVoiceResponseProto() {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistryLite registry) {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions((com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+
+  public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
+    return descriptor;
+  }
+
+  private static com.google.protobuf.Descriptors.FileDescriptor descriptor;
+
+  static {
+    java.lang.String[] descriptorData = {
+      "\n,google/cloud/dialogflow/cx/v3beta1/ivr"
+          + ".proto\022\"google.cloud.dialogflow.cx.v3bet"
+          + "a1\032\036google/protobuf/duration.proto\032\034goog"
+          + "le/api/annotations.protoB\274\001\n&com.google."
+          + "cloud.dialogflow.cx.v3beta1B\035Interactive"
+          + "VoiceResponseProtoP\001ZDgoogle.golang.org/"
+          + "genproto/googleapis/cloud/dialogflow/cx/"
+          + "v3beta1;cx\370\001\001\242\002\002DF\252\002\"Google.Cloud.Dialog"
+          + "flow.Cx.V3Beta1b\006proto3"
+    };
+    descriptor =
+        com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
+            descriptorData,
+            new com.google.protobuf.Descriptors.FileDescriptor[] {
+              com.google.protobuf.DurationProto.getDescriptor(),
+              com.google.api.AnnotationsProto.getDescriptor(),
+            });
+    com.google.protobuf.DurationProto.getDescriptor();
+    com.google.api.AnnotationsProto.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListAgentsRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListAgentsRequest.java
new file mode 100644
index 000000000..72b151ff7
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListAgentsRequest.java
@@ -0,0 +1,931 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Agents.ListAgents][google.cloud.dialogflow.cx.v3beta1.Agents.ListAgents].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest}
+ */
+public final class ListAgentsRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest)
+    ListAgentsRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ListAgentsRequest.newBuilder() to construct.
+  private ListAgentsRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ListAgentsRequest() {
+    parent_ = "";
+    pageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ListAgentsRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ListAgentsRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
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+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;`.
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+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
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+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
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+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest)) {
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+    if (!getPageToken().equals(other.getPageToken())) return false;
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+    return true;
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+  public int hashCode() {
+    if (memoizedHashCode != 0) {
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+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
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+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
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+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
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+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
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+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Agents.ListAgents][google.cloud.dialogflow.cx.v3beta1.Agents.ListAgents].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListAgentsRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListAgentsRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
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+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      pageSize_ = 0;
+
+      pageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListAgentsRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest(this);
+      result.parent_ = parent_;
+      result.pageSize_ = pageSize_;
+      result.pageToken_ = pageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
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+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
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+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
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+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
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+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
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+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest) {
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+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest.getDefaultInstance())
+        return this;
+      if (!other.getParent().isEmpty()) {
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+        onChanged();
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+      if (other.getPageSize() != 0) {
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+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
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+      return this;
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+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The location to list all agents for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The parent.
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+    public java.lang.String getParent() {
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+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The location to list all agents for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
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+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The location to list all agents for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The location to list all agents for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The location to list all agents for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
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+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int pageSize_;
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     *
+     * @return The pageSize.
+     */
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+    public int getPageSize() {
+      return pageSize_;
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+    /**
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+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
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+     *
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+    }
+
+    private java.lang.Object pageToken_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return The pageToken.
+     */
+    public java.lang.String getPageToken() {
+      java.lang.Object ref = pageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        pageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return The bytes for pageToken.
+     */
+    public com.google.protobuf.ByteString getPageTokenBytes() {
+      java.lang.Object ref = pageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        pageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @param value The pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageToken() {
+
+      pageToken_ = getDefaultInstance().getPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @param value The bytes for pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListAgentsRequest> PARSER =
+      new com.google.protobuf.AbstractParser<ListAgentsRequest>() {
+        @java.lang.Override
+        public ListAgentsRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ListAgentsRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ListAgentsRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListAgentsRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListAgentsRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListAgentsRequestOrBuilder.java
new file mode 100644
index 000000000..77d8371f0
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListAgentsRequestOrBuilder.java
@@ -0,0 +1,95 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ListAgentsRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ListAgentsRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The location to list all agents for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The location to list all agents for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The maximum number of items to return in a single page. By default 100 and
+   * at most 1000.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   *
+   * @return The pageSize.
+   */
+  int getPageSize();
+
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The pageToken.
+   */
+  java.lang.String getPageToken();
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The bytes for pageToken.
+   */
+  com.google.protobuf.ByteString getPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListAgentsResponse.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListAgentsResponse.java
new file mode 100644
index 000000000..84837d503
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListAgentsResponse.java
@@ -0,0 +1,1159 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The response message for [Agents.ListAgents][google.cloud.dialogflow.cx.v3beta1.Agents.ListAgents].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse}
+ */
+public final class ListAgentsResponse extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse)
+    ListAgentsResponseOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ListAgentsResponse.newBuilder() to construct.
+  private ListAgentsResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ListAgentsResponse() {
+    agents_ = java.util.Collections.emptyList();
+    nextPageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ListAgentsResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ListAgentsResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                agents_ = new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.Agent>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              agents_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Agent.parser(), extensionRegistry));
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              nextPageToken_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        agents_ = java.util.Collections.unmodifiableList(agents_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListAgentsResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListAgentsResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse.class,
+            com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse.Builder.class);
+  }
+
+  public static final int AGENTS_FIELD_NUMBER = 1;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Agent> agents_;
+  /**
+   *
+   *
+   * <pre>
+   * The list of agents. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Agent> getAgentsList() {
+    return agents_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of agents. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.AgentOrBuilder>
+      getAgentsOrBuilderList() {
+    return agents_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of agents. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+   */
+  @java.lang.Override
+  public int getAgentsCount() {
+    return agents_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of agents. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Agent getAgents(int index) {
+    return agents_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of agents. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.AgentOrBuilder getAgentsOrBuilder(int index) {
+    return agents_.get(index);
+  }
+
+  public static final int NEXT_PAGE_TOKEN_FIELD_NUMBER = 2;
+  private volatile java.lang.Object nextPageToken_;
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The nextPageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getNextPageToken() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      nextPageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The bytes for nextPageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNextPageTokenBytes() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      nextPageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    for (int i = 0; i < agents_.size(); i++) {
+      output.writeMessage(1, agents_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    for (int i = 0; i < agents_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, agents_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse other =
+        (com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse) obj;
+
+    if (!getAgentsList().equals(other.getAgentsList())) return false;
+    if (!getNextPageToken().equals(other.getNextPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (getAgentsCount() > 0) {
+      hash = (37 * hash) + AGENTS_FIELD_NUMBER;
+      hash = (53 * hash) + getAgentsList().hashCode();
+    }
+    hash = (37 * hash) + NEXT_PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getNextPageToken().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The response message for [Agents.ListAgents][google.cloud.dialogflow.cx.v3beta1.Agents.ListAgents].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse)
+      com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListAgentsResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListAgentsResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getAgentsFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (agentsBuilder_ == null) {
+        agents_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        agentsBuilder_.clear();
+      }
+      nextPageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListAgentsResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse(this);
+      int from_bitField0_ = bitField0_;
+      if (agentsBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          agents_ = java.util.Collections.unmodifiableList(agents_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.agents_ = agents_;
+      } else {
+        result.agents_ = agentsBuilder_.build();
+      }
+      result.nextPageToken_ = nextPageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse.getDefaultInstance())
+        return this;
+      if (agentsBuilder_ == null) {
+        if (!other.agents_.isEmpty()) {
+          if (agents_.isEmpty()) {
+            agents_ = other.agents_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureAgentsIsMutable();
+            agents_.addAll(other.agents_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.agents_.isEmpty()) {
+          if (agentsBuilder_.isEmpty()) {
+            agentsBuilder_.dispose();
+            agentsBuilder_ = null;
+            agents_ = other.agents_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            agentsBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getAgentsFieldBuilder()
+                    : null;
+          } else {
+            agentsBuilder_.addAllMessages(other.agents_);
+          }
+        }
+      }
+      if (!other.getNextPageToken().isEmpty()) {
+        nextPageToken_ = other.nextPageToken_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Agent> agents_ =
+        java.util.Collections.emptyList();
+
+    private void ensureAgentsIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        agents_ = new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.Agent>(agents_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Agent,
+            com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.AgentOrBuilder>
+        agentsBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * The list of agents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Agent> getAgentsList() {
+      if (agentsBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(agents_);
+      } else {
+        return agentsBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of agents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+     */
+    public int getAgentsCount() {
+      if (agentsBuilder_ == null) {
+        return agents_.size();
+      } else {
+        return agentsBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of agents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Agent getAgents(int index) {
+      if (agentsBuilder_ == null) {
+        return agents_.get(index);
+      } else {
+        return agentsBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of agents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+     */
+    public Builder setAgents(int index, com.google.cloud.dialogflow.cx.v3beta1.Agent value) {
+      if (agentsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureAgentsIsMutable();
+        agents_.set(index, value);
+        onChanged();
+      } else {
+        agentsBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of agents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+     */
+    public Builder setAgents(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder builderForValue) {
+      if (agentsBuilder_ == null) {
+        ensureAgentsIsMutable();
+        agents_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        agentsBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of agents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+     */
+    public Builder addAgents(com.google.cloud.dialogflow.cx.v3beta1.Agent value) {
+      if (agentsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureAgentsIsMutable();
+        agents_.add(value);
+        onChanged();
+      } else {
+        agentsBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of agents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+     */
+    public Builder addAgents(int index, com.google.cloud.dialogflow.cx.v3beta1.Agent value) {
+      if (agentsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureAgentsIsMutable();
+        agents_.add(index, value);
+        onChanged();
+      } else {
+        agentsBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of agents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+     */
+    public Builder addAgents(com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder builderForValue) {
+      if (agentsBuilder_ == null) {
+        ensureAgentsIsMutable();
+        agents_.add(builderForValue.build());
+        onChanged();
+      } else {
+        agentsBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of agents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+     */
+    public Builder addAgents(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder builderForValue) {
+      if (agentsBuilder_ == null) {
+        ensureAgentsIsMutable();
+        agents_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        agentsBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of agents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+     */
+    public Builder addAllAgents(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.Agent> values) {
+      if (agentsBuilder_ == null) {
+        ensureAgentsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, agents_);
+        onChanged();
+      } else {
+        agentsBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of agents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+     */
+    public Builder clearAgents() {
+      if (agentsBuilder_ == null) {
+        agents_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        agentsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of agents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+     */
+    public Builder removeAgents(int index) {
+      if (agentsBuilder_ == null) {
+        ensureAgentsIsMutable();
+        agents_.remove(index);
+        onChanged();
+      } else {
+        agentsBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of agents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder getAgentsBuilder(int index) {
+      return getAgentsFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of agents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.AgentOrBuilder getAgentsOrBuilder(int index) {
+      if (agentsBuilder_ == null) {
+        return agents_.get(index);
+      } else {
+        return agentsBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of agents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+     */
+    public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.AgentOrBuilder>
+        getAgentsOrBuilderList() {
+      if (agentsBuilder_ != null) {
+        return agentsBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(agents_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of agents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder addAgentsBuilder() {
+      return getAgentsFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.cx.v3beta1.Agent.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of agents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder addAgentsBuilder(int index) {
+      return getAgentsFieldBuilder()
+          .addBuilder(index, com.google.cloud.dialogflow.cx.v3beta1.Agent.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of agents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder>
+        getAgentsBuilderList() {
+      return getAgentsFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Agent,
+            com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.AgentOrBuilder>
+        getAgentsFieldBuilder() {
+      if (agentsBuilder_ == null) {
+        agentsBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Agent,
+                com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.AgentOrBuilder>(
+                agents_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+        agents_ = null;
+      }
+      return agentsBuilder_;
+    }
+
+    private java.lang.Object nextPageToken_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return The nextPageToken.
+     */
+    public java.lang.String getNextPageToken() {
+      java.lang.Object ref = nextPageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        nextPageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return The bytes for nextPageToken.
+     */
+    public com.google.protobuf.ByteString getNextPageTokenBytes() {
+      java.lang.Object ref = nextPageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        nextPageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @param value The nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearNextPageToken() {
+
+      nextPageToken_ = getDefaultInstance().getNextPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @param value The bytes for nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListAgentsResponse> PARSER =
+      new com.google.protobuf.AbstractParser<ListAgentsResponse>() {
+        @java.lang.Override
+        public ListAgentsResponse parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ListAgentsResponse(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ListAgentsResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListAgentsResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListAgentsResponseOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListAgentsResponseOrBuilder.java
new file mode 100644
index 000000000..022149920
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListAgentsResponseOrBuilder.java
@@ -0,0 +1,109 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ListAgentsResponseOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ListAgentsResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The list of agents. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Agent> getAgentsList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of agents. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Agent getAgents(int index);
+  /**
+   *
+   *
+   * <pre>
+   * The list of agents. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+   */
+  int getAgentsCount();
+  /**
+   *
+   *
+   * <pre>
+   * The list of agents. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.AgentOrBuilder>
+      getAgentsOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of agents. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Agent agents = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.AgentOrBuilder getAgentsOrBuilder(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The nextPageToken.
+   */
+  java.lang.String getNextPageToken();
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The bytes for nextPageToken.
+   */
+  com.google.protobuf.ByteString getNextPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEntityTypesRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEntityTypesRequest.java
new file mode 100644
index 000000000..6e975123a
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEntityTypesRequest.java
@@ -0,0 +1,1177 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [EntityTypes.ListEntityTypes][google.cloud.dialogflow.cx.v3beta1.EntityTypes.ListEntityTypes].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest}
+ */
+public final class ListEntityTypesRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest)
+    ListEntityTypesRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ListEntityTypesRequest.newBuilder() to construct.
+  private ListEntityTypesRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ListEntityTypesRequest() {
+    parent_ = "";
+    languageCode_ = "";
+    pageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ListEntityTypesRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ListEntityTypesRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              languageCode_ = s;
+              break;
+            }
+          case 24:
+            {
+              pageSize_ = input.readInt32();
+              break;
+            }
+          case 34:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              pageToken_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListEntityTypesRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListEntityTypesRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to list all entity types for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to list all entity types for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int LANGUAGE_CODE_FIELD_NUMBER = 2;
+  private volatile java.lang.Object languageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * The language to list entity types for. The following fields are language
+   * dependent:
+   * *   `EntityType.entities.value`
+   * *   `EntityType.entities.synonyms`
+   * *   `EntityType.excluded_phrases.value`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The languageCode.
+   */
+  @java.lang.Override
+  public java.lang.String getLanguageCode() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      languageCode_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The language to list entity types for. The following fields are language
+   * dependent:
+   * *   `EntityType.entities.value`
+   * *   `EntityType.entities.synonyms`
+   * *   `EntityType.excluded_phrases.value`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getLanguageCodeBytes() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      languageCode_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int PAGE_SIZE_FIELD_NUMBER = 3;
+  private int pageSize_;
+  /**
+   *
+   *
+   * <pre>
+   * The maximum number of items to return in a single page. By default 100 and
+   * at most 1000.
+   * </pre>
+   *
+   * <code>int32 page_size = 3;</code>
+   *
+   * @return The pageSize.
+   */
+  @java.lang.Override
+  public int getPageSize() {
+    return pageSize_;
+  }
+
+  public static final int PAGE_TOKEN_FIELD_NUMBER = 4;
+  private volatile java.lang.Object pageToken_;
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 4;</code>
+   *
+   * @return The pageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getPageToken() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      pageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 4;</code>
+   *
+   * @return The bytes for pageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getPageTokenBytes() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      pageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getParentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, languageCode_);
+    }
+    if (pageSize_ != 0) {
+      output.writeInt32(3, pageSize_);
+    }
+    if (!getPageTokenBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 4, pageToken_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getParentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, languageCode_);
+    }
+    if (pageSize_ != 0) {
+      size += com.google.protobuf.CodedOutputStream.computeInt32Size(3, pageSize_);
+    }
+    if (!getPageTokenBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, pageToken_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest) obj;
+
+    if (!getParent().equals(other.getParent())) return false;
+    if (!getLanguageCode().equals(other.getLanguageCode())) return false;
+    if (getPageSize() != other.getPageSize()) return false;
+    if (!getPageToken().equals(other.getPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
+    hash = (53 * hash) + getLanguageCode().hashCode();
+    hash = (37 * hash) + PAGE_SIZE_FIELD_NUMBER;
+    hash = (53 * hash) + getPageSize();
+    hash = (37 * hash) + PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getPageToken().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [EntityTypes.ListEntityTypes][google.cloud.dialogflow.cx.v3beta1.EntityTypes.ListEntityTypes].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListEntityTypesRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListEntityTypesRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      languageCode_ = "";
+
+      pageSize_ = 0;
+
+      pageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListEntityTypesRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest(this);
+      result.parent_ = parent_;
+      result.languageCode_ = languageCode_;
+      result.pageSize_ = pageSize_;
+      result.pageToken_ = pageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest.getDefaultInstance())
+        return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
+      }
+      if (other.getPageSize() != 0) {
+        setPageSize(other.getPageSize());
+      }
+      if (!other.getPageToken().isEmpty()) {
+        pageToken_ = other.pageToken_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to list all entity types for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to list all entity types for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to list all entity types for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to list all entity types for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to list all entity types for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The language to list entity types for. The following fields are language
+     * dependent:
+     * *   `EntityType.entities.value`
+     * *   `EntityType.entities.synonyms`
+     * *   `EntityType.excluded_phrases.value`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list entity types for. The following fields are language
+     * dependent:
+     * *   `EntityType.entities.value`
+     * *   `EntityType.entities.synonyms`
+     * *   `EntityType.excluded_phrases.value`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list entity types for. The following fields are language
+     * dependent:
+     * *   `EntityType.entities.value`
+     * *   `EntityType.entities.synonyms`
+     * *   `EntityType.excluded_phrases.value`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list entity types for. The following fields are language
+     * dependent:
+     * *   `EntityType.entities.value`
+     * *   `EntityType.entities.synonyms`
+     * *   `EntityType.excluded_phrases.value`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list entity types for. The following fields are language
+     * dependent:
+     * *   `EntityType.entities.value`
+     * *   `EntityType.entities.synonyms`
+     * *   `EntityType.excluded_phrases.value`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int pageSize_;
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 3;</code>
+     *
+     * @return The pageSize.
+     */
+    @java.lang.Override
+    public int getPageSize() {
+      return pageSize_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 3;</code>
+     *
+     * @param value The pageSize to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageSize(int value) {
+
+      pageSize_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageSize() {
+
+      pageSize_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object pageToken_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 4;</code>
+     *
+     * @return The pageToken.
+     */
+    public java.lang.String getPageToken() {
+      java.lang.Object ref = pageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        pageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 4;</code>
+     *
+     * @return The bytes for pageToken.
+     */
+    public com.google.protobuf.ByteString getPageTokenBytes() {
+      java.lang.Object ref = pageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        pageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 4;</code>
+     *
+     * @param value The pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 4;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageToken() {
+
+      pageToken_ = getDefaultInstance().getPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 4;</code>
+     *
+     * @param value The bytes for pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListEntityTypesRequest> PARSER =
+      new com.google.protobuf.AbstractParser<ListEntityTypesRequest>() {
+        @java.lang.Override
+        public ListEntityTypesRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ListEntityTypesRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ListEntityTypesRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListEntityTypesRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEntityTypesRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEntityTypesRequestOrBuilder.java
new file mode 100644
index 000000000..2870ca6dc
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEntityTypesRequestOrBuilder.java
@@ -0,0 +1,138 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ListEntityTypesRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ListEntityTypesRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to list all entity types for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to list all entity types for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The language to list entity types for. The following fields are language
+   * dependent:
+   * *   `EntityType.entities.value`
+   * *   `EntityType.entities.synonyms`
+   * *   `EntityType.excluded_phrases.value`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * The language to list entity types for. The following fields are language
+   * dependent:
+   * *   `EntityType.entities.value`
+   * *   `EntityType.entities.synonyms`
+   * *   `EntityType.excluded_phrases.value`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The maximum number of items to return in a single page. By default 100 and
+   * at most 1000.
+   * </pre>
+   *
+   * <code>int32 page_size = 3;</code>
+   *
+   * @return The pageSize.
+   */
+  int getPageSize();
+
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 4;</code>
+   *
+   * @return The pageToken.
+   */
+  java.lang.String getPageToken();
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 4;</code>
+   *
+   * @return The bytes for pageToken.
+   */
+  com.google.protobuf.ByteString getPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEntityTypesResponse.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEntityTypesResponse.java
new file mode 100644
index 000000000..d2145c7e0
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEntityTypesResponse.java
@@ -0,0 +1,1177 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The response message for [EntityTypes.ListEntityTypes][google.cloud.dialogflow.cx.v3beta1.EntityTypes.ListEntityTypes].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse}
+ */
+public final class ListEntityTypesResponse extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse)
+    ListEntityTypesResponseOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ListEntityTypesResponse.newBuilder() to construct.
+  private ListEntityTypesResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ListEntityTypesResponse() {
+    entityTypes_ = java.util.Collections.emptyList();
+    nextPageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ListEntityTypesResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ListEntityTypesResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                entityTypes_ =
+                    new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.EntityType>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              entityTypes_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.EntityType.parser(),
+                      extensionRegistry));
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              nextPageToken_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        entityTypes_ = java.util.Collections.unmodifiableList(entityTypes_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListEntityTypesResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListEntityTypesResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse.class,
+            com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse.Builder.class);
+  }
+
+  public static final int ENTITY_TYPES_FIELD_NUMBER = 1;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType> entityTypes_;
+  /**
+   *
+   *
+   * <pre>
+   * The list of entity types. There will be a maximum number of items returned
+   * based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType> getEntityTypesList() {
+    return entityTypes_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of entity types. There will be a maximum number of items returned
+   * based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder>
+      getEntityTypesOrBuilderList() {
+    return entityTypes_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of entity types. There will be a maximum number of items returned
+   * based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+   */
+  @java.lang.Override
+  public int getEntityTypesCount() {
+    return entityTypes_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of entity types. There will be a maximum number of items returned
+   * based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.EntityType getEntityTypes(int index) {
+    return entityTypes_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of entity types. There will be a maximum number of items returned
+   * based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder getEntityTypesOrBuilder(
+      int index) {
+    return entityTypes_.get(index);
+  }
+
+  public static final int NEXT_PAGE_TOKEN_FIELD_NUMBER = 2;
+  private volatile java.lang.Object nextPageToken_;
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no
+   * more results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The nextPageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getNextPageToken() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      nextPageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no
+   * more results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The bytes for nextPageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNextPageTokenBytes() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      nextPageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    for (int i = 0; i < entityTypes_.size(); i++) {
+      output.writeMessage(1, entityTypes_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    for (int i = 0; i < entityTypes_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, entityTypes_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse other =
+        (com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse) obj;
+
+    if (!getEntityTypesList().equals(other.getEntityTypesList())) return false;
+    if (!getNextPageToken().equals(other.getNextPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (getEntityTypesCount() > 0) {
+      hash = (37 * hash) + ENTITY_TYPES_FIELD_NUMBER;
+      hash = (53 * hash) + getEntityTypesList().hashCode();
+    }
+    hash = (37 * hash) + NEXT_PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getNextPageToken().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The response message for [EntityTypes.ListEntityTypes][google.cloud.dialogflow.cx.v3beta1.EntityTypes.ListEntityTypes].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse)
+      com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListEntityTypesResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListEntityTypesResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getEntityTypesFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (entityTypesBuilder_ == null) {
+        entityTypes_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        entityTypesBuilder_.clear();
+      }
+      nextPageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListEntityTypesResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse(this);
+      int from_bitField0_ = bitField0_;
+      if (entityTypesBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          entityTypes_ = java.util.Collections.unmodifiableList(entityTypes_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.entityTypes_ = entityTypes_;
+      } else {
+        result.entityTypes_ = entityTypesBuilder_.build();
+      }
+      result.nextPageToken_ = nextPageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse.getDefaultInstance())
+        return this;
+      if (entityTypesBuilder_ == null) {
+        if (!other.entityTypes_.isEmpty()) {
+          if (entityTypes_.isEmpty()) {
+            entityTypes_ = other.entityTypes_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureEntityTypesIsMutable();
+            entityTypes_.addAll(other.entityTypes_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.entityTypes_.isEmpty()) {
+          if (entityTypesBuilder_.isEmpty()) {
+            entityTypesBuilder_.dispose();
+            entityTypesBuilder_ = null;
+            entityTypes_ = other.entityTypes_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            entityTypesBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getEntityTypesFieldBuilder()
+                    : null;
+          } else {
+            entityTypesBuilder_.addAllMessages(other.entityTypes_);
+          }
+        }
+      }
+      if (!other.getNextPageToken().isEmpty()) {
+        nextPageToken_ = other.nextPageToken_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType> entityTypes_ =
+        java.util.Collections.emptyList();
+
+    private void ensureEntityTypesIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        entityTypes_ =
+            new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.EntityType>(
+                entityTypes_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder>
+        entityTypesBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * The list of entity types. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType> getEntityTypesList() {
+      if (entityTypesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(entityTypes_);
+      } else {
+        return entityTypesBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of entity types. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+     */
+    public int getEntityTypesCount() {
+      if (entityTypesBuilder_ == null) {
+        return entityTypes_.size();
+      } else {
+        return entityTypesBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of entity types. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType getEntityTypes(int index) {
+      if (entityTypesBuilder_ == null) {
+        return entityTypes_.get(index);
+      } else {
+        return entityTypesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of entity types. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+     */
+    public Builder setEntityTypes(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.EntityType value) {
+      if (entityTypesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEntityTypesIsMutable();
+        entityTypes_.set(index, value);
+        onChanged();
+      } else {
+        entityTypesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of entity types. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+     */
+    public Builder setEntityTypes(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder builderForValue) {
+      if (entityTypesBuilder_ == null) {
+        ensureEntityTypesIsMutable();
+        entityTypes_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        entityTypesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of entity types. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+     */
+    public Builder addEntityTypes(com.google.cloud.dialogflow.cx.v3beta1.EntityType value) {
+      if (entityTypesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEntityTypesIsMutable();
+        entityTypes_.add(value);
+        onChanged();
+      } else {
+        entityTypesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of entity types. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+     */
+    public Builder addEntityTypes(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.EntityType value) {
+      if (entityTypesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEntityTypesIsMutable();
+        entityTypes_.add(index, value);
+        onChanged();
+      } else {
+        entityTypesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of entity types. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+     */
+    public Builder addEntityTypes(
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder builderForValue) {
+      if (entityTypesBuilder_ == null) {
+        ensureEntityTypesIsMutable();
+        entityTypes_.add(builderForValue.build());
+        onChanged();
+      } else {
+        entityTypesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of entity types. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+     */
+    public Builder addEntityTypes(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder builderForValue) {
+      if (entityTypesBuilder_ == null) {
+        ensureEntityTypesIsMutable();
+        entityTypes_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        entityTypesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of entity types. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+     */
+    public Builder addAllEntityTypes(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.EntityType> values) {
+      if (entityTypesBuilder_ == null) {
+        ensureEntityTypesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, entityTypes_);
+        onChanged();
+      } else {
+        entityTypesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of entity types. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+     */
+    public Builder clearEntityTypes() {
+      if (entityTypesBuilder_ == null) {
+        entityTypes_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        entityTypesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of entity types. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+     */
+    public Builder removeEntityTypes(int index) {
+      if (entityTypesBuilder_ == null) {
+        ensureEntityTypesIsMutable();
+        entityTypes_.remove(index);
+        onChanged();
+      } else {
+        entityTypesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of entity types. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder getEntityTypesBuilder(
+        int index) {
+      return getEntityTypesFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of entity types. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder getEntityTypesOrBuilder(
+        int index) {
+      if (entityTypesBuilder_ == null) {
+        return entityTypes_.get(index);
+      } else {
+        return entityTypesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of entity types. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+     */
+    public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder>
+        getEntityTypesOrBuilderList() {
+      if (entityTypesBuilder_ != null) {
+        return entityTypesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(entityTypes_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of entity types. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder addEntityTypesBuilder() {
+      return getEntityTypesFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.cx.v3beta1.EntityType.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of entity types. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder addEntityTypesBuilder(
+        int index) {
+      return getEntityTypesFieldBuilder()
+          .addBuilder(
+              index, com.google.cloud.dialogflow.cx.v3beta1.EntityType.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of entity types. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder>
+        getEntityTypesBuilderList() {
+      return getEntityTypesFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder>
+        getEntityTypesFieldBuilder() {
+      if (entityTypesBuilder_ == null) {
+        entityTypesBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.EntityType,
+                com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder>(
+                entityTypes_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+        entityTypes_ = null;
+      }
+      return entityTypesBuilder_;
+    }
+
+    private java.lang.Object nextPageToken_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no
+     * more results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return The nextPageToken.
+     */
+    public java.lang.String getNextPageToken() {
+      java.lang.Object ref = nextPageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        nextPageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no
+     * more results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return The bytes for nextPageToken.
+     */
+    public com.google.protobuf.ByteString getNextPageTokenBytes() {
+      java.lang.Object ref = nextPageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        nextPageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no
+     * more results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @param value The nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no
+     * more results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearNextPageToken() {
+
+      nextPageToken_ = getDefaultInstance().getNextPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no
+     * more results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @param value The bytes for nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListEntityTypesResponse> PARSER =
+      new com.google.protobuf.AbstractParser<ListEntityTypesResponse>() {
+        @java.lang.Override
+        public ListEntityTypesResponse parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ListEntityTypesResponse(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ListEntityTypesResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListEntityTypesResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEntityTypesResponseOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEntityTypesResponseOrBuilder.java
new file mode 100644
index 000000000..83c88464c
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEntityTypesResponseOrBuilder.java
@@ -0,0 +1,109 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ListEntityTypesResponseOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ListEntityTypesResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The list of entity types. There will be a maximum number of items returned
+   * based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType> getEntityTypesList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of entity types. There will be a maximum number of items returned
+   * based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.EntityType getEntityTypes(int index);
+  /**
+   *
+   *
+   * <pre>
+   * The list of entity types. There will be a maximum number of items returned
+   * based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+   */
+  int getEntityTypesCount();
+  /**
+   *
+   *
+   * <pre>
+   * The list of entity types. There will be a maximum number of items returned
+   * based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder>
+      getEntityTypesOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of entity types. There will be a maximum number of items returned
+   * based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EntityType entity_types = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder getEntityTypesOrBuilder(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no
+   * more results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The nextPageToken.
+   */
+  java.lang.String getNextPageToken();
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no
+   * more results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The bytes for nextPageToken.
+   */
+  com.google.protobuf.ByteString getNextPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEnvironmentsRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEnvironmentsRequest.java
new file mode 100644
index 000000000..8c5425478
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEnvironmentsRequest.java
@@ -0,0 +1,937 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/environment.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Environments.ListEnvironments][google.cloud.dialogflow.cx.v3beta1.Environments.ListEnvironments].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest}
+ */
+public final class ListEnvironmentsRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest)
+    ListEnvironmentsRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ListEnvironmentsRequest.newBuilder() to construct.
+  private ListEnvironmentsRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ListEnvironmentsRequest() {
+    parent_ = "";
+    pageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ListEnvironmentsRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ListEnvironmentsRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
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+
+              parent_ = s;
+              break;
+            }
+          case 16:
+            {
+              pageSize_ = input.readInt32();
+              break;
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+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              pageToken_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListEnvironmentsRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListEnvironmentsRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to list all environments for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to list all environments for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int PAGE_SIZE_FIELD_NUMBER = 2;
+  private int pageSize_;
+  /**
+   *
+   *
+   * <pre>
+   * The maximum number of items to return in a single page. By default 20 and
+   * at most 100.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   *
+   * @return The pageSize.
+   */
+  @java.lang.Override
+  public int getPageSize() {
+    return pageSize_;
+  }
+
+  public static final int PAGE_TOKEN_FIELD_NUMBER = 3;
+  private volatile java.lang.Object pageToken_;
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The pageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getPageToken() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
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+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      pageToken_ = s;
+      return s;
+    }
+  }
+  /**
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+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
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+   *
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+  public com.google.protobuf.ByteString getPageTokenBytes() {
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+      pageToken_ = b;
+      return b;
+    } else {
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+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getParentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
+    }
+    if (pageSize_ != 0) {
+      output.writeInt32(2, pageSize_);
+    }
+    if (!getPageTokenBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, pageToken_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getParentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
+    }
+    if (pageSize_ != 0) {
+      size += com.google.protobuf.CodedOutputStream.computeInt32Size(2, pageSize_);
+    }
+    if (!getPageTokenBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, pageToken_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest) obj;
+
+    if (!getParent().equals(other.getParent())) return false;
+    if (getPageSize() != other.getPageSize()) return false;
+    if (!getPageToken().equals(other.getPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    hash = (37 * hash) + PAGE_SIZE_FIELD_NUMBER;
+    hash = (53 * hash) + getPageSize();
+    hash = (37 * hash) + PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getPageToken().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Environments.ListEnvironments][google.cloud.dialogflow.cx.v3beta1.Environments.ListEnvironments].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListEnvironmentsRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListEnvironmentsRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      pageSize_ = 0;
+
+      pageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListEnvironmentsRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest(this);
+      result.parent_ = parent_;
+      result.pageSize_ = pageSize_;
+      result.pageToken_ = pageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest.getDefaultInstance())
+        return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (other.getPageSize() != 0) {
+        setPageSize(other.getPageSize());
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+      if (!other.getPageToken().isEmpty()) {
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+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest)
+                e.getUnfinishedMessage();
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+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
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+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to list all environments for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to list all environments for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to list all environments for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to list all environments for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to list all environments for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int pageSize_;
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 20 and
+     * at most 100.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     *
+     * @return The pageSize.
+     */
+    @java.lang.Override
+    public int getPageSize() {
+      return pageSize_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 20 and
+     * at most 100.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     *
+     * @param value The pageSize to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageSize(int value) {
+
+      pageSize_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 20 and
+     * at most 100.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageSize() {
+
+      pageSize_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object pageToken_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return The pageToken.
+     */
+    public java.lang.String getPageToken() {
+      java.lang.Object ref = pageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        pageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return The bytes for pageToken.
+     */
+    public com.google.protobuf.ByteString getPageTokenBytes() {
+      java.lang.Object ref = pageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        pageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @param value The pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageToken() {
+
+      pageToken_ = getDefaultInstance().getPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @param value The bytes for pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListEnvironmentsRequest> PARSER =
+      new com.google.protobuf.AbstractParser<ListEnvironmentsRequest>() {
+        @java.lang.Override
+        public ListEnvironmentsRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ListEnvironmentsRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ListEnvironmentsRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListEnvironmentsRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEnvironmentsRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEnvironmentsRequestOrBuilder.java
new file mode 100644
index 000000000..caac3ef83
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEnvironmentsRequestOrBuilder.java
@@ -0,0 +1,95 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/environment.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ListEnvironmentsRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to list all environments for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to list all environments for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The maximum number of items to return in a single page. By default 20 and
+   * at most 100.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   *
+   * @return The pageSize.
+   */
+  int getPageSize();
+
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The pageToken.
+   */
+  java.lang.String getPageToken();
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The bytes for pageToken.
+   */
+  com.google.protobuf.ByteString getPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEnvironmentsResponse.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEnvironmentsResponse.java
new file mode 100644
index 000000000..258d49882
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEnvironmentsResponse.java
@@ -0,0 +1,1225 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/environment.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The response message for [Environments.ListEnvironments][google.cloud.dialogflow.cx.v3beta1.Environments.ListEnvironments].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse}
+ */
+public final class ListEnvironmentsResponse extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse)
+    ListEnvironmentsResponseOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ListEnvironmentsResponse.newBuilder() to construct.
+  private ListEnvironmentsResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ListEnvironmentsResponse() {
+    environments_ = java.util.Collections.emptyList();
+    nextPageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ListEnvironmentsResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ListEnvironmentsResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                environments_ =
+                    new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.Environment>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              environments_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Environment.parser(),
+                      extensionRegistry));
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              nextPageToken_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        environments_ = java.util.Collections.unmodifiableList(environments_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListEnvironmentsResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListEnvironmentsResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse.class,
+            com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse.Builder.class);
+  }
+
+  public static final int ENVIRONMENTS_FIELD_NUMBER = 1;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Environment> environments_;
+  /**
+   *
+   *
+   * <pre>
+   * The list of environments. There will be a maximum number of items
+   * returned based on the page_size field in the request. The list may in some
+   * cases be empty or contain fewer entries than page_size even if this isn't
+   * the last page.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Environment> getEnvironmentsList() {
+    return environments_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of environments. There will be a maximum number of items
+   * returned based on the page_size field in the request. The list may in some
+   * cases be empty or contain fewer entries than page_size even if this isn't
+   * the last page.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder>
+      getEnvironmentsOrBuilderList() {
+    return environments_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of environments. There will be a maximum number of items
+   * returned based on the page_size field in the request. The list may in some
+   * cases be empty or contain fewer entries than page_size even if this isn't
+   * the last page.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+   */
+  @java.lang.Override
+  public int getEnvironmentsCount() {
+    return environments_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of environments. There will be a maximum number of items
+   * returned based on the page_size field in the request. The list may in some
+   * cases be empty or contain fewer entries than page_size even if this isn't
+   * the last page.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Environment getEnvironments(int index) {
+    return environments_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of environments. There will be a maximum number of items
+   * returned based on the page_size field in the request. The list may in some
+   * cases be empty or contain fewer entries than page_size even if this isn't
+   * the last page.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder getEnvironmentsOrBuilder(
+      int index) {
+    return environments_.get(index);
+  }
+
+  public static final int NEXT_PAGE_TOKEN_FIELD_NUMBER = 2;
+  private volatile java.lang.Object nextPageToken_;
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The nextPageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getNextPageToken() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      nextPageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The bytes for nextPageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNextPageTokenBytes() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      nextPageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    for (int i = 0; i < environments_.size(); i++) {
+      output.writeMessage(1, environments_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    for (int i = 0; i < environments_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, environments_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse other =
+        (com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse) obj;
+
+    if (!getEnvironmentsList().equals(other.getEnvironmentsList())) return false;
+    if (!getNextPageToken().equals(other.getNextPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (getEnvironmentsCount() > 0) {
+      hash = (37 * hash) + ENVIRONMENTS_FIELD_NUMBER;
+      hash = (53 * hash) + getEnvironmentsList().hashCode();
+    }
+    hash = (37 * hash) + NEXT_PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getNextPageToken().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The response message for [Environments.ListEnvironments][google.cloud.dialogflow.cx.v3beta1.Environments.ListEnvironments].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse)
+      com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListEnvironmentsResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListEnvironmentsResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getEnvironmentsFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (environmentsBuilder_ == null) {
+        environments_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        environmentsBuilder_.clear();
+      }
+      nextPageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListEnvironmentsResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse(this);
+      int from_bitField0_ = bitField0_;
+      if (environmentsBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          environments_ = java.util.Collections.unmodifiableList(environments_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.environments_ = environments_;
+      } else {
+        result.environments_ = environmentsBuilder_.build();
+      }
+      result.nextPageToken_ = nextPageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse.getDefaultInstance())
+        return this;
+      if (environmentsBuilder_ == null) {
+        if (!other.environments_.isEmpty()) {
+          if (environments_.isEmpty()) {
+            environments_ = other.environments_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureEnvironmentsIsMutable();
+            environments_.addAll(other.environments_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.environments_.isEmpty()) {
+          if (environmentsBuilder_.isEmpty()) {
+            environmentsBuilder_.dispose();
+            environmentsBuilder_ = null;
+            environments_ = other.environments_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            environmentsBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getEnvironmentsFieldBuilder()
+                    : null;
+          } else {
+            environmentsBuilder_.addAllMessages(other.environments_);
+          }
+        }
+      }
+      if (!other.getNextPageToken().isEmpty()) {
+        nextPageToken_ = other.nextPageToken_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Environment> environments_ =
+        java.util.Collections.emptyList();
+
+    private void ensureEnvironmentsIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        environments_ =
+            new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.Environment>(
+                environments_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Environment,
+            com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder>
+        environmentsBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * The list of environments. There will be a maximum number of items
+     * returned based on the page_size field in the request. The list may in some
+     * cases be empty or contain fewer entries than page_size even if this isn't
+     * the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Environment>
+        getEnvironmentsList() {
+      if (environmentsBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(environments_);
+      } else {
+        return environmentsBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of environments. There will be a maximum number of items
+     * returned based on the page_size field in the request. The list may in some
+     * cases be empty or contain fewer entries than page_size even if this isn't
+     * the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public int getEnvironmentsCount() {
+      if (environmentsBuilder_ == null) {
+        return environments_.size();
+      } else {
+        return environmentsBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of environments. There will be a maximum number of items
+     * returned based on the page_size field in the request. The list may in some
+     * cases be empty or contain fewer entries than page_size even if this isn't
+     * the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Environment getEnvironments(int index) {
+      if (environmentsBuilder_ == null) {
+        return environments_.get(index);
+      } else {
+        return environmentsBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of environments. There will be a maximum number of items
+     * returned based on the page_size field in the request. The list may in some
+     * cases be empty or contain fewer entries than page_size even if this isn't
+     * the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public Builder setEnvironments(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Environment value) {
+      if (environmentsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEnvironmentsIsMutable();
+        environments_.set(index, value);
+        onChanged();
+      } else {
+        environmentsBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of environments. There will be a maximum number of items
+     * returned based on the page_size field in the request. The list may in some
+     * cases be empty or contain fewer entries than page_size even if this isn't
+     * the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public Builder setEnvironments(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder builderForValue) {
+      if (environmentsBuilder_ == null) {
+        ensureEnvironmentsIsMutable();
+        environments_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        environmentsBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of environments. There will be a maximum number of items
+     * returned based on the page_size field in the request. The list may in some
+     * cases be empty or contain fewer entries than page_size even if this isn't
+     * the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public Builder addEnvironments(com.google.cloud.dialogflow.cx.v3beta1.Environment value) {
+      if (environmentsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEnvironmentsIsMutable();
+        environments_.add(value);
+        onChanged();
+      } else {
+        environmentsBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of environments. There will be a maximum number of items
+     * returned based on the page_size field in the request. The list may in some
+     * cases be empty or contain fewer entries than page_size even if this isn't
+     * the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public Builder addEnvironments(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Environment value) {
+      if (environmentsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEnvironmentsIsMutable();
+        environments_.add(index, value);
+        onChanged();
+      } else {
+        environmentsBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of environments. There will be a maximum number of items
+     * returned based on the page_size field in the request. The list may in some
+     * cases be empty or contain fewer entries than page_size even if this isn't
+     * the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public Builder addEnvironments(
+        com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder builderForValue) {
+      if (environmentsBuilder_ == null) {
+        ensureEnvironmentsIsMutable();
+        environments_.add(builderForValue.build());
+        onChanged();
+      } else {
+        environmentsBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of environments. There will be a maximum number of items
+     * returned based on the page_size field in the request. The list may in some
+     * cases be empty or contain fewer entries than page_size even if this isn't
+     * the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public Builder addEnvironments(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder builderForValue) {
+      if (environmentsBuilder_ == null) {
+        ensureEnvironmentsIsMutable();
+        environments_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        environmentsBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of environments. There will be a maximum number of items
+     * returned based on the page_size field in the request. The list may in some
+     * cases be empty or contain fewer entries than page_size even if this isn't
+     * the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public Builder addAllEnvironments(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.Environment> values) {
+      if (environmentsBuilder_ == null) {
+        ensureEnvironmentsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, environments_);
+        onChanged();
+      } else {
+        environmentsBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of environments. There will be a maximum number of items
+     * returned based on the page_size field in the request. The list may in some
+     * cases be empty or contain fewer entries than page_size even if this isn't
+     * the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public Builder clearEnvironments() {
+      if (environmentsBuilder_ == null) {
+        environments_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        environmentsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of environments. There will be a maximum number of items
+     * returned based on the page_size field in the request. The list may in some
+     * cases be empty or contain fewer entries than page_size even if this isn't
+     * the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public Builder removeEnvironments(int index) {
+      if (environmentsBuilder_ == null) {
+        ensureEnvironmentsIsMutable();
+        environments_.remove(index);
+        onChanged();
+      } else {
+        environmentsBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of environments. There will be a maximum number of items
+     * returned based on the page_size field in the request. The list may in some
+     * cases be empty or contain fewer entries than page_size even if this isn't
+     * the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder getEnvironmentsBuilder(
+        int index) {
+      return getEnvironmentsFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of environments. There will be a maximum number of items
+     * returned based on the page_size field in the request. The list may in some
+     * cases be empty or contain fewer entries than page_size even if this isn't
+     * the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder getEnvironmentsOrBuilder(
+        int index) {
+      if (environmentsBuilder_ == null) {
+        return environments_.get(index);
+      } else {
+        return environmentsBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of environments. There will be a maximum number of items
+     * returned based on the page_size field in the request. The list may in some
+     * cases be empty or contain fewer entries than page_size even if this isn't
+     * the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder>
+        getEnvironmentsOrBuilderList() {
+      if (environmentsBuilder_ != null) {
+        return environmentsBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(environments_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of environments. There will be a maximum number of items
+     * returned based on the page_size field in the request. The list may in some
+     * cases be empty or contain fewer entries than page_size even if this isn't
+     * the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder addEnvironmentsBuilder() {
+      return getEnvironmentsFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.cx.v3beta1.Environment.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of environments. There will be a maximum number of items
+     * returned based on the page_size field in the request. The list may in some
+     * cases be empty or contain fewer entries than page_size even if this isn't
+     * the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder addEnvironmentsBuilder(
+        int index) {
+      return getEnvironmentsFieldBuilder()
+          .addBuilder(
+              index, com.google.cloud.dialogflow.cx.v3beta1.Environment.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of environments. There will be a maximum number of items
+     * returned based on the page_size field in the request. The list may in some
+     * cases be empty or contain fewer entries than page_size even if this isn't
+     * the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder>
+        getEnvironmentsBuilderList() {
+      return getEnvironmentsFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Environment,
+            com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder>
+        getEnvironmentsFieldBuilder() {
+      if (environmentsBuilder_ == null) {
+        environmentsBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Environment,
+                com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder>(
+                environments_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+        environments_ = null;
+      }
+      return environmentsBuilder_;
+    }
+
+    private java.lang.Object nextPageToken_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return The nextPageToken.
+     */
+    public java.lang.String getNextPageToken() {
+      java.lang.Object ref = nextPageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        nextPageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return The bytes for nextPageToken.
+     */
+    public com.google.protobuf.ByteString getNextPageTokenBytes() {
+      java.lang.Object ref = nextPageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        nextPageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @param value The nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearNextPageToken() {
+
+      nextPageToken_ = getDefaultInstance().getNextPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @param value The bytes for nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListEnvironmentsResponse> PARSER =
+      new com.google.protobuf.AbstractParser<ListEnvironmentsResponse>() {
+        @java.lang.Override
+        public ListEnvironmentsResponse parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ListEnvironmentsResponse(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ListEnvironmentsResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListEnvironmentsResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEnvironmentsResponseOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEnvironmentsResponseOrBuilder.java
new file mode 100644
index 000000000..40d971bca
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEnvironmentsResponseOrBuilder.java
@@ -0,0 +1,119 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/environment.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ListEnvironmentsResponseOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ListEnvironmentsResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The list of environments. There will be a maximum number of items
+   * returned based on the page_size field in the request. The list may in some
+   * cases be empty or contain fewer entries than page_size even if this isn't
+   * the last page.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Environment> getEnvironmentsList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of environments. There will be a maximum number of items
+   * returned based on the page_size field in the request. The list may in some
+   * cases be empty or contain fewer entries than page_size even if this isn't
+   * the last page.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Environment getEnvironments(int index);
+  /**
+   *
+   *
+   * <pre>
+   * The list of environments. There will be a maximum number of items
+   * returned based on the page_size field in the request. The list may in some
+   * cases be empty or contain fewer entries than page_size even if this isn't
+   * the last page.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+   */
+  int getEnvironmentsCount();
+  /**
+   *
+   *
+   * <pre>
+   * The list of environments. There will be a maximum number of items
+   * returned based on the page_size field in the request. The list may in some
+   * cases be empty or contain fewer entries than page_size even if this isn't
+   * the last page.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder>
+      getEnvironmentsOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of environments. There will be a maximum number of items
+   * returned based on the page_size field in the request. The list may in some
+   * cases be empty or contain fewer entries than page_size even if this isn't
+   * the last page.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder getEnvironmentsOrBuilder(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The nextPageToken.
+   */
+  java.lang.String getNextPageToken();
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The bytes for nextPageToken.
+   */
+  com.google.protobuf.ByteString getNextPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListFlowsRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListFlowsRequest.java
new file mode 100644
index 000000000..4b88dfbdb
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListFlowsRequest.java
@@ -0,0 +1,1166 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/flow.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Flows.ListFlows][google.cloud.dialogflow.cx.v3beta1.Flows.ListFlows].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest}
+ */
+public final class ListFlowsRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest)
+    ListFlowsRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ListFlowsRequest.newBuilder() to construct.
+  private ListFlowsRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ListFlowsRequest() {
+    parent_ = "";
+    pageToken_ = "";
+    languageCode_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ListFlowsRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ListFlowsRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 16:
+            {
+              pageSize_ = input.readInt32();
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              pageToken_ = s;
+              break;
+            }
+          case 34:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              languageCode_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListFlowsRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListFlowsRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent containing the flows.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent containing the flows.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int PAGE_SIZE_FIELD_NUMBER = 2;
+  private int pageSize_;
+  /**
+   *
+   *
+   * <pre>
+   * The maximum number of items to return in a single page. By default 100 and
+   * at most 1000.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   *
+   * @return The pageSize.
+   */
+  @java.lang.Override
+  public int getPageSize() {
+    return pageSize_;
+  }
+
+  public static final int PAGE_TOKEN_FIELD_NUMBER = 3;
+  private volatile java.lang.Object pageToken_;
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The pageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getPageToken() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      pageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The bytes for pageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getPageTokenBytes() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      pageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int LANGUAGE_CODE_FIELD_NUMBER = 4;
+  private volatile java.lang.Object languageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * The language to list flows for. The following fields are language
+   * dependent:
+   * *  `Flow.event_handlers.trigger_fulfillment.messages`
+   * *  `Flow.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 4;</code>
+   *
+   * @return The languageCode.
+   */
+  @java.lang.Override
+  public java.lang.String getLanguageCode() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      languageCode_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The language to list flows for. The following fields are language
+   * dependent:
+   * *  `Flow.event_handlers.trigger_fulfillment.messages`
+   * *  `Flow.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 4;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getLanguageCodeBytes() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
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+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Flows.ListFlows][google.cloud.dialogflow.cx.v3beta1.Flows.ListFlows].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListFlowsRequest_descriptor;
+    }
+
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+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
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+    private void maybeForceBuilderInitialization() {
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+      parent_ = "";
+
+      pageSize_ = 0;
+
+      pageToken_ = "";
+
+      languageCode_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListFlowsRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest result = buildPartial();
+      if (!result.isInitialized()) {
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+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest(this);
+      result.parent_ = parent_;
+      result.pageSize_ = pageSize_;
+      result.pageToken_ = pageToken_;
+      result.languageCode_ = languageCode_;
+      onBuilt();
+      return result;
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+    public Builder clone() {
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+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
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+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
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+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
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+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
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+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest) {
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+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest.getDefaultInstance())
+        return this;
+      if (!other.getParent().isEmpty()) {
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+      }
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
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+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent containing the flows.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent containing the flows.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent containing the flows.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent containing the flows.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent containing the flows.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int pageSize_;
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     *
+     * @return The pageSize.
+     */
+    @java.lang.Override
+    public int getPageSize() {
+      return pageSize_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     *
+     * @param value The pageSize to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageSize(int value) {
+
+      pageSize_ = value;
+      onChanged();
+      return this;
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+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
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+     *
+     * <code>int32 page_size = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageSize() {
+
+      pageSize_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object pageToken_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return The pageToken.
+     */
+    public java.lang.String getPageToken() {
+      java.lang.Object ref = pageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        pageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return The bytes for pageToken.
+     */
+    public com.google.protobuf.ByteString getPageTokenBytes() {
+      java.lang.Object ref = pageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
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+        pageToken_ = b;
+        return b;
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+        return (com.google.protobuf.ByteString) ref;
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+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @param value The pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageToken() {
+
+      pageToken_ = getDefaultInstance().getPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @param value The bytes for pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The language to list flows for. The following fields are language
+     * dependent:
+     * *  `Flow.event_handlers.trigger_fulfillment.messages`
+     * *  `Flow.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 4;</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list flows for. The following fields are language
+     * dependent:
+     * *  `Flow.event_handlers.trigger_fulfillment.messages`
+     * *  `Flow.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 4;</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list flows for. The following fields are language
+     * dependent:
+     * *  `Flow.event_handlers.trigger_fulfillment.messages`
+     * *  `Flow.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 4;</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list flows for. The following fields are language
+     * dependent:
+     * *  `Flow.event_handlers.trigger_fulfillment.messages`
+     * *  `Flow.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 4;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list flows for. The following fields are language
+     * dependent:
+     * *  `Flow.event_handlers.trigger_fulfillment.messages`
+     * *  `Flow.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 4;</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListFlowsRequest> PARSER =
+      new com.google.protobuf.AbstractParser<ListFlowsRequest>() {
+        @java.lang.Override
+        public ListFlowsRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ListFlowsRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ListFlowsRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListFlowsRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListFlowsRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListFlowsRequestOrBuilder.java
new file mode 100644
index 000000000..1afea2a4c
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListFlowsRequestOrBuilder.java
@@ -0,0 +1,136 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/flow.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ListFlowsRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ListFlowsRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent containing the flows.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent containing the flows.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The maximum number of items to return in a single page. By default 100 and
+   * at most 1000.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   *
+   * @return The pageSize.
+   */
+  int getPageSize();
+
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The pageToken.
+   */
+  java.lang.String getPageToken();
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The bytes for pageToken.
+   */
+  com.google.protobuf.ByteString getPageTokenBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The language to list flows for. The following fields are language
+   * dependent:
+   * *  `Flow.event_handlers.trigger_fulfillment.messages`
+   * *  `Flow.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 4;</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * The language to list flows for. The following fields are language
+   * dependent:
+   * *  `Flow.event_handlers.trigger_fulfillment.messages`
+   * *  `Flow.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 4;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListFlowsResponse.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListFlowsResponse.java
new file mode 100644
index 000000000..e9c3879e1
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListFlowsResponse.java
@@ -0,0 +1,1159 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/flow.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The response message for [Flows.ListFlows][google.cloud.dialogflow.cx.v3beta1.Flows.ListFlows].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse}
+ */
+public final class ListFlowsResponse extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse)
+    ListFlowsResponseOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ListFlowsResponse.newBuilder() to construct.
+  private ListFlowsResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ListFlowsResponse() {
+    flows_ = java.util.Collections.emptyList();
+    nextPageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ListFlowsResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ListFlowsResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                flows_ = new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.Flow>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              flows_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Flow.parser(), extensionRegistry));
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              nextPageToken_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        flows_ = java.util.Collections.unmodifiableList(flows_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListFlowsResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListFlowsResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse.class,
+            com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse.Builder.class);
+  }
+
+  public static final int FLOWS_FIELD_NUMBER = 1;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Flow> flows_;
+  /**
+   *
+   *
+   * <pre>
+   * The list of flows. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Flow> getFlowsList() {
+    return flows_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of flows. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder>
+      getFlowsOrBuilderList() {
+    return flows_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of flows. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+   */
+  @java.lang.Override
+  public int getFlowsCount() {
+    return flows_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of flows. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Flow getFlows(int index) {
+    return flows_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of flows. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder getFlowsOrBuilder(int index) {
+    return flows_.get(index);
+  }
+
+  public static final int NEXT_PAGE_TOKEN_FIELD_NUMBER = 2;
+  private volatile java.lang.Object nextPageToken_;
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The nextPageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getNextPageToken() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      nextPageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The bytes for nextPageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNextPageTokenBytes() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      nextPageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    for (int i = 0; i < flows_.size(); i++) {
+      output.writeMessage(1, flows_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    for (int i = 0; i < flows_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, flows_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse other =
+        (com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse) obj;
+
+    if (!getFlowsList().equals(other.getFlowsList())) return false;
+    if (!getNextPageToken().equals(other.getNextPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (getFlowsCount() > 0) {
+      hash = (37 * hash) + FLOWS_FIELD_NUMBER;
+      hash = (53 * hash) + getFlowsList().hashCode();
+    }
+    hash = (37 * hash) + NEXT_PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getNextPageToken().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The response message for [Flows.ListFlows][google.cloud.dialogflow.cx.v3beta1.Flows.ListFlows].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse)
+      com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListFlowsResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListFlowsResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getFlowsFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (flowsBuilder_ == null) {
+        flows_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        flowsBuilder_.clear();
+      }
+      nextPageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListFlowsResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse(this);
+      int from_bitField0_ = bitField0_;
+      if (flowsBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          flows_ = java.util.Collections.unmodifiableList(flows_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.flows_ = flows_;
+      } else {
+        result.flows_ = flowsBuilder_.build();
+      }
+      result.nextPageToken_ = nextPageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse.getDefaultInstance())
+        return this;
+      if (flowsBuilder_ == null) {
+        if (!other.flows_.isEmpty()) {
+          if (flows_.isEmpty()) {
+            flows_ = other.flows_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureFlowsIsMutable();
+            flows_.addAll(other.flows_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.flows_.isEmpty()) {
+          if (flowsBuilder_.isEmpty()) {
+            flowsBuilder_.dispose();
+            flowsBuilder_ = null;
+            flows_ = other.flows_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            flowsBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getFlowsFieldBuilder()
+                    : null;
+          } else {
+            flowsBuilder_.addAllMessages(other.flows_);
+          }
+        }
+      }
+      if (!other.getNextPageToken().isEmpty()) {
+        nextPageToken_ = other.nextPageToken_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Flow> flows_ =
+        java.util.Collections.emptyList();
+
+    private void ensureFlowsIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        flows_ = new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.Flow>(flows_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Flow,
+            com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder>
+        flowsBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * The list of flows. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Flow> getFlowsList() {
+      if (flowsBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(flows_);
+      } else {
+        return flowsBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of flows. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+     */
+    public int getFlowsCount() {
+      if (flowsBuilder_ == null) {
+        return flows_.size();
+      } else {
+        return flowsBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of flows. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Flow getFlows(int index) {
+      if (flowsBuilder_ == null) {
+        return flows_.get(index);
+      } else {
+        return flowsBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of flows. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+     */
+    public Builder setFlows(int index, com.google.cloud.dialogflow.cx.v3beta1.Flow value) {
+      if (flowsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureFlowsIsMutable();
+        flows_.set(index, value);
+        onChanged();
+      } else {
+        flowsBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of flows. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+     */
+    public Builder setFlows(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder builderForValue) {
+      if (flowsBuilder_ == null) {
+        ensureFlowsIsMutable();
+        flows_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        flowsBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of flows. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+     */
+    public Builder addFlows(com.google.cloud.dialogflow.cx.v3beta1.Flow value) {
+      if (flowsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureFlowsIsMutable();
+        flows_.add(value);
+        onChanged();
+      } else {
+        flowsBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of flows. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+     */
+    public Builder addFlows(int index, com.google.cloud.dialogflow.cx.v3beta1.Flow value) {
+      if (flowsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureFlowsIsMutable();
+        flows_.add(index, value);
+        onChanged();
+      } else {
+        flowsBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of flows. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+     */
+    public Builder addFlows(com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder builderForValue) {
+      if (flowsBuilder_ == null) {
+        ensureFlowsIsMutable();
+        flows_.add(builderForValue.build());
+        onChanged();
+      } else {
+        flowsBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of flows. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+     */
+    public Builder addFlows(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder builderForValue) {
+      if (flowsBuilder_ == null) {
+        ensureFlowsIsMutable();
+        flows_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        flowsBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of flows. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+     */
+    public Builder addAllFlows(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.Flow> values) {
+      if (flowsBuilder_ == null) {
+        ensureFlowsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, flows_);
+        onChanged();
+      } else {
+        flowsBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of flows. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+     */
+    public Builder clearFlows() {
+      if (flowsBuilder_ == null) {
+        flows_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        flowsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of flows. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+     */
+    public Builder removeFlows(int index) {
+      if (flowsBuilder_ == null) {
+        ensureFlowsIsMutable();
+        flows_.remove(index);
+        onChanged();
+      } else {
+        flowsBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of flows. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder getFlowsBuilder(int index) {
+      return getFlowsFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of flows. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder getFlowsOrBuilder(int index) {
+      if (flowsBuilder_ == null) {
+        return flows_.get(index);
+      } else {
+        return flowsBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of flows. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+     */
+    public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder>
+        getFlowsOrBuilderList() {
+      if (flowsBuilder_ != null) {
+        return flowsBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(flows_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of flows. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder addFlowsBuilder() {
+      return getFlowsFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.cx.v3beta1.Flow.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of flows. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder addFlowsBuilder(int index) {
+      return getFlowsFieldBuilder()
+          .addBuilder(index, com.google.cloud.dialogflow.cx.v3beta1.Flow.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of flows. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder>
+        getFlowsBuilderList() {
+      return getFlowsFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Flow,
+            com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder>
+        getFlowsFieldBuilder() {
+      if (flowsBuilder_ == null) {
+        flowsBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Flow,
+                com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder>(
+                flows_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+        flows_ = null;
+      }
+      return flowsBuilder_;
+    }
+
+    private java.lang.Object nextPageToken_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return The nextPageToken.
+     */
+    public java.lang.String getNextPageToken() {
+      java.lang.Object ref = nextPageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        nextPageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return The bytes for nextPageToken.
+     */
+    public com.google.protobuf.ByteString getNextPageTokenBytes() {
+      java.lang.Object ref = nextPageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        nextPageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @param value The nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearNextPageToken() {
+
+      nextPageToken_ = getDefaultInstance().getNextPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @param value The bytes for nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListFlowsResponse> PARSER =
+      new com.google.protobuf.AbstractParser<ListFlowsResponse>() {
+        @java.lang.Override
+        public ListFlowsResponse parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ListFlowsResponse(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ListFlowsResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListFlowsResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListFlowsResponseOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListFlowsResponseOrBuilder.java
new file mode 100644
index 000000000..a676308b5
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListFlowsResponseOrBuilder.java
@@ -0,0 +1,109 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/flow.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ListFlowsResponseOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ListFlowsResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The list of flows. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Flow> getFlowsList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of flows. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Flow getFlows(int index);
+  /**
+   *
+   *
+   * <pre>
+   * The list of flows. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+   */
+  int getFlowsCount();
+  /**
+   *
+   *
+   * <pre>
+   * The list of flows. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder>
+      getFlowsOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of flows. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Flow flows = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder getFlowsOrBuilder(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The nextPageToken.
+   */
+  java.lang.String getNextPageToken();
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The bytes for nextPageToken.
+   */
+  com.google.protobuf.ByteString getNextPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListIntentsRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListIntentsRequest.java
new file mode 100644
index 000000000..a13bed6f4
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListIntentsRequest.java
@@ -0,0 +1,1313 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/intent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Intents.ListIntents][google.cloud.dialogflow.cx.v3beta1.Intents.ListIntents].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest}
+ */
+public final class ListIntentsRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest)
+    ListIntentsRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ListIntentsRequest.newBuilder() to construct.
+  private ListIntentsRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ListIntentsRequest() {
+    parent_ = "";
+    languageCode_ = "";
+    intentView_ = 0;
+    pageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ListIntentsRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ListIntentsRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              languageCode_ = s;
+              break;
+            }
+          case 24:
+            {
+              pageSize_ = input.readInt32();
+              break;
+            }
+          case 34:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              pageToken_ = s;
+              break;
+            }
+          case 40:
+            {
+              int rawValue = input.readEnum();
+
+              intentView_ = rawValue;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListIntentsRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListIntentsRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to list all intents for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to list all intents for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int LANGUAGE_CODE_FIELD_NUMBER = 2;
+  private volatile java.lang.Object languageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * The language to list intents for. The following fields are language
+   * dependent:
+   * *   `Intent.training_phrases.parts.text`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The languageCode.
+   */
+  @java.lang.Override
+  public java.lang.String getLanguageCode() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      languageCode_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The language to list intents for. The following fields are language
+   * dependent:
+   * *   `Intent.training_phrases.parts.text`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getLanguageCodeBytes() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      languageCode_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int INTENT_VIEW_FIELD_NUMBER = 5;
+  private int intentView_;
+  /**
+   *
+   *
+   * <pre>
+   * The resource view to apply to the returned intent.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.IntentView intent_view = 5;</code>
+   *
+   * @return The enum numeric value on the wire for intentView.
+   */
+  @java.lang.Override
+  public int getIntentViewValue() {
+    return intentView_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The resource view to apply to the returned intent.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.IntentView intent_view = 5;</code>
+   *
+   * @return The intentView.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.IntentView getIntentView() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.dialogflow.cx.v3beta1.IntentView result =
+        com.google.cloud.dialogflow.cx.v3beta1.IntentView.valueOf(intentView_);
+    return result == null ? com.google.cloud.dialogflow.cx.v3beta1.IntentView.UNRECOGNIZED : result;
+  }
+
+  public static final int PAGE_SIZE_FIELD_NUMBER = 3;
+  private int pageSize_;
+  /**
+   *
+   *
+   * <pre>
+   * The maximum number of items to return in a single page. By default 100 and
+   * at most 1000.
+   * </pre>
+   *
+   * <code>int32 page_size = 3;</code>
+   *
+   * @return The pageSize.
+   */
+  @java.lang.Override
+  public int getPageSize() {
+    return pageSize_;
+  }
+
+  public static final int PAGE_TOKEN_FIELD_NUMBER = 4;
+  private volatile java.lang.Object pageToken_;
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 4;</code>
+   *
+   * @return The pageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getPageToken() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      pageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 4;</code>
+   *
+   * @return The bytes for pageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getPageTokenBytes() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      pageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getParentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, languageCode_);
+    }
+    if (pageSize_ != 0) {
+      output.writeInt32(3, pageSize_);
+    }
+    if (!getPageTokenBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 4, pageToken_);
+    }
+    if (intentView_
+        != com.google.cloud.dialogflow.cx.v3beta1.IntentView.INTENT_VIEW_UNSPECIFIED.getNumber()) {
+      output.writeEnum(5, intentView_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getParentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, languageCode_);
+    }
+    if (pageSize_ != 0) {
+      size += com.google.protobuf.CodedOutputStream.computeInt32Size(3, pageSize_);
+    }
+    if (!getPageTokenBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, pageToken_);
+    }
+    if (intentView_
+        != com.google.cloud.dialogflow.cx.v3beta1.IntentView.INTENT_VIEW_UNSPECIFIED.getNumber()) {
+      size += com.google.protobuf.CodedOutputStream.computeEnumSize(5, intentView_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest) obj;
+
+    if (!getParent().equals(other.getParent())) return false;
+    if (!getLanguageCode().equals(other.getLanguageCode())) return false;
+    if (intentView_ != other.intentView_) return false;
+    if (getPageSize() != other.getPageSize()) return false;
+    if (!getPageToken().equals(other.getPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
+    hash = (53 * hash) + getLanguageCode().hashCode();
+    hash = (37 * hash) + INTENT_VIEW_FIELD_NUMBER;
+    hash = (53 * hash) + intentView_;
+    hash = (37 * hash) + PAGE_SIZE_FIELD_NUMBER;
+    hash = (53 * hash) + getPageSize();
+    hash = (37 * hash) + PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getPageToken().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Intents.ListIntents][google.cloud.dialogflow.cx.v3beta1.Intents.ListIntents].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListIntentsRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListIntentsRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      languageCode_ = "";
+
+      intentView_ = 0;
+
+      pageSize_ = 0;
+
+      pageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListIntentsRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest(this);
+      result.parent_ = parent_;
+      result.languageCode_ = languageCode_;
+      result.intentView_ = intentView_;
+      result.pageSize_ = pageSize_;
+      result.pageToken_ = pageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest.getDefaultInstance())
+        return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
+      }
+      if (other.intentView_ != 0) {
+        setIntentViewValue(other.getIntentViewValue());
+      }
+      if (other.getPageSize() != 0) {
+        setPageSize(other.getPageSize());
+      }
+      if (!other.getPageToken().isEmpty()) {
+        pageToken_ = other.pageToken_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to list all intents for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to list all intents for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to list all intents for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to list all intents for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to list all intents for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The language to list intents for. The following fields are language
+     * dependent:
+     * *   `Intent.training_phrases.parts.text`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list intents for. The following fields are language
+     * dependent:
+     * *   `Intent.training_phrases.parts.text`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list intents for. The following fields are language
+     * dependent:
+     * *   `Intent.training_phrases.parts.text`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list intents for. The following fields are language
+     * dependent:
+     * *   `Intent.training_phrases.parts.text`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list intents for. The following fields are language
+     * dependent:
+     * *   `Intent.training_phrases.parts.text`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int intentView_ = 0;
+    /**
+     *
+     *
+     * <pre>
+     * The resource view to apply to the returned intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.IntentView intent_view = 5;</code>
+     *
+     * @return The enum numeric value on the wire for intentView.
+     */
+    @java.lang.Override
+    public int getIntentViewValue() {
+      return intentView_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The resource view to apply to the returned intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.IntentView intent_view = 5;</code>
+     *
+     * @param value The enum numeric value on the wire for intentView to set.
+     * @return This builder for chaining.
+     */
+    public Builder setIntentViewValue(int value) {
+
+      intentView_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The resource view to apply to the returned intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.IntentView intent_view = 5;</code>
+     *
+     * @return The intentView.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.IntentView getIntentView() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.dialogflow.cx.v3beta1.IntentView result =
+          com.google.cloud.dialogflow.cx.v3beta1.IntentView.valueOf(intentView_);
+      return result == null
+          ? com.google.cloud.dialogflow.cx.v3beta1.IntentView.UNRECOGNIZED
+          : result;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The resource view to apply to the returned intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.IntentView intent_view = 5;</code>
+     *
+     * @param value The intentView to set.
+     * @return This builder for chaining.
+     */
+    public Builder setIntentView(com.google.cloud.dialogflow.cx.v3beta1.IntentView value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      intentView_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The resource view to apply to the returned intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.IntentView intent_view = 5;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearIntentView() {
+
+      intentView_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private int pageSize_;
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 3;</code>
+     *
+     * @return The pageSize.
+     */
+    @java.lang.Override
+    public int getPageSize() {
+      return pageSize_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 3;</code>
+     *
+     * @param value The pageSize to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageSize(int value) {
+
+      pageSize_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageSize() {
+
+      pageSize_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object pageToken_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 4;</code>
+     *
+     * @return The pageToken.
+     */
+    public java.lang.String getPageToken() {
+      java.lang.Object ref = pageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        pageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 4;</code>
+     *
+     * @return The bytes for pageToken.
+     */
+    public com.google.protobuf.ByteString getPageTokenBytes() {
+      java.lang.Object ref = pageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        pageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 4;</code>
+     *
+     * @param value The pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 4;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageToken() {
+
+      pageToken_ = getDefaultInstance().getPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 4;</code>
+     *
+     * @param value The bytes for pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListIntentsRequest> PARSER =
+      new com.google.protobuf.AbstractParser<ListIntentsRequest>() {
+        @java.lang.Override
+        public ListIntentsRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ListIntentsRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ListIntentsRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListIntentsRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListIntentsRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListIntentsRequestOrBuilder.java
new file mode 100644
index 000000000..9dcf9f538
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListIntentsRequestOrBuilder.java
@@ -0,0 +1,159 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/intent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ListIntentsRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ListIntentsRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to list all intents for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to list all intents for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The language to list intents for. The following fields are language
+   * dependent:
+   * *   `Intent.training_phrases.parts.text`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * The language to list intents for. The following fields are language
+   * dependent:
+   * *   `Intent.training_phrases.parts.text`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The resource view to apply to the returned intent.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.IntentView intent_view = 5;</code>
+   *
+   * @return The enum numeric value on the wire for intentView.
+   */
+  int getIntentViewValue();
+  /**
+   *
+   *
+   * <pre>
+   * The resource view to apply to the returned intent.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.IntentView intent_view = 5;</code>
+   *
+   * @return The intentView.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.IntentView getIntentView();
+
+  /**
+   *
+   *
+   * <pre>
+   * The maximum number of items to return in a single page. By default 100 and
+   * at most 1000.
+   * </pre>
+   *
+   * <code>int32 page_size = 3;</code>
+   *
+   * @return The pageSize.
+   */
+  int getPageSize();
+
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 4;</code>
+   *
+   * @return The pageToken.
+   */
+  java.lang.String getPageToken();
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 4;</code>
+   *
+   * @return The bytes for pageToken.
+   */
+  com.google.protobuf.ByteString getPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListIntentsResponse.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListIntentsResponse.java
new file mode 100644
index 000000000..67ee47f24
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListIntentsResponse.java
@@ -0,0 +1,1160 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/intent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The response message for [Intents.ListIntents][google.cloud.dialogflow.cx.v3beta1.Intents.ListIntents].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse}
+ */
+public final class ListIntentsResponse extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse)
+    ListIntentsResponseOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ListIntentsResponse.newBuilder() to construct.
+  private ListIntentsResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ListIntentsResponse() {
+    intents_ = java.util.Collections.emptyList();
+    nextPageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ListIntentsResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ListIntentsResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                intents_ = new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.Intent>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              intents_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Intent.parser(), extensionRegistry));
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              nextPageToken_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        intents_ = java.util.Collections.unmodifiableList(intents_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListIntentsResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListIntentsResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse.class,
+            com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse.Builder.class);
+  }
+
+  public static final int INTENTS_FIELD_NUMBER = 1;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent> intents_;
+  /**
+   *
+   *
+   * <pre>
+   * The list of intents. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent> getIntentsList() {
+    return intents_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of intents. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder>
+      getIntentsOrBuilderList() {
+    return intents_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of intents. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+   */
+  @java.lang.Override
+  public int getIntentsCount() {
+    return intents_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of intents. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Intent getIntents(int index) {
+    return intents_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of intents. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder getIntentsOrBuilder(int index) {
+    return intents_.get(index);
+  }
+
+  public static final int NEXT_PAGE_TOKEN_FIELD_NUMBER = 2;
+  private volatile java.lang.Object nextPageToken_;
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The nextPageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getNextPageToken() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      nextPageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The bytes for nextPageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNextPageTokenBytes() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      nextPageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    for (int i = 0; i < intents_.size(); i++) {
+      output.writeMessage(1, intents_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    for (int i = 0; i < intents_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, intents_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse other =
+        (com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse) obj;
+
+    if (!getIntentsList().equals(other.getIntentsList())) return false;
+    if (!getNextPageToken().equals(other.getNextPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (getIntentsCount() > 0) {
+      hash = (37 * hash) + INTENTS_FIELD_NUMBER;
+      hash = (53 * hash) + getIntentsList().hashCode();
+    }
+    hash = (37 * hash) + NEXT_PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getNextPageToken().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The response message for [Intents.ListIntents][google.cloud.dialogflow.cx.v3beta1.Intents.ListIntents].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse)
+      com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListIntentsResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListIntentsResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getIntentsFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (intentsBuilder_ == null) {
+        intents_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        intentsBuilder_.clear();
+      }
+      nextPageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListIntentsResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse(this);
+      int from_bitField0_ = bitField0_;
+      if (intentsBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          intents_ = java.util.Collections.unmodifiableList(intents_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.intents_ = intents_;
+      } else {
+        result.intents_ = intentsBuilder_.build();
+      }
+      result.nextPageToken_ = nextPageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse.getDefaultInstance())
+        return this;
+      if (intentsBuilder_ == null) {
+        if (!other.intents_.isEmpty()) {
+          if (intents_.isEmpty()) {
+            intents_ = other.intents_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureIntentsIsMutable();
+            intents_.addAll(other.intents_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.intents_.isEmpty()) {
+          if (intentsBuilder_.isEmpty()) {
+            intentsBuilder_.dispose();
+            intentsBuilder_ = null;
+            intents_ = other.intents_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            intentsBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getIntentsFieldBuilder()
+                    : null;
+          } else {
+            intentsBuilder_.addAllMessages(other.intents_);
+          }
+        }
+      }
+      if (!other.getNextPageToken().isEmpty()) {
+        nextPageToken_ = other.nextPageToken_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent> intents_ =
+        java.util.Collections.emptyList();
+
+    private void ensureIntentsIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        intents_ = new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.Intent>(intents_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Intent,
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder>
+        intentsBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * The list of intents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent> getIntentsList() {
+      if (intentsBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(intents_);
+      } else {
+        return intentsBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of intents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+     */
+    public int getIntentsCount() {
+      if (intentsBuilder_ == null) {
+        return intents_.size();
+      } else {
+        return intentsBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of intents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent getIntents(int index) {
+      if (intentsBuilder_ == null) {
+        return intents_.get(index);
+      } else {
+        return intentsBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of intents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+     */
+    public Builder setIntents(int index, com.google.cloud.dialogflow.cx.v3beta1.Intent value) {
+      if (intentsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureIntentsIsMutable();
+        intents_.set(index, value);
+        onChanged();
+      } else {
+        intentsBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of intents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+     */
+    public Builder setIntents(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder builderForValue) {
+      if (intentsBuilder_ == null) {
+        ensureIntentsIsMutable();
+        intents_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        intentsBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of intents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+     */
+    public Builder addIntents(com.google.cloud.dialogflow.cx.v3beta1.Intent value) {
+      if (intentsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureIntentsIsMutable();
+        intents_.add(value);
+        onChanged();
+      } else {
+        intentsBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of intents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+     */
+    public Builder addIntents(int index, com.google.cloud.dialogflow.cx.v3beta1.Intent value) {
+      if (intentsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureIntentsIsMutable();
+        intents_.add(index, value);
+        onChanged();
+      } else {
+        intentsBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of intents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+     */
+    public Builder addIntents(
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder builderForValue) {
+      if (intentsBuilder_ == null) {
+        ensureIntentsIsMutable();
+        intents_.add(builderForValue.build());
+        onChanged();
+      } else {
+        intentsBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of intents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+     */
+    public Builder addIntents(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder builderForValue) {
+      if (intentsBuilder_ == null) {
+        ensureIntentsIsMutable();
+        intents_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        intentsBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of intents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+     */
+    public Builder addAllIntents(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.Intent> values) {
+      if (intentsBuilder_ == null) {
+        ensureIntentsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, intents_);
+        onChanged();
+      } else {
+        intentsBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of intents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+     */
+    public Builder clearIntents() {
+      if (intentsBuilder_ == null) {
+        intents_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        intentsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of intents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+     */
+    public Builder removeIntents(int index) {
+      if (intentsBuilder_ == null) {
+        ensureIntentsIsMutable();
+        intents_.remove(index);
+        onChanged();
+      } else {
+        intentsBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of intents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder getIntentsBuilder(int index) {
+      return getIntentsFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of intents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder getIntentsOrBuilder(int index) {
+      if (intentsBuilder_ == null) {
+        return intents_.get(index);
+      } else {
+        return intentsBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of intents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+     */
+    public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder>
+        getIntentsOrBuilderList() {
+      if (intentsBuilder_ != null) {
+        return intentsBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(intents_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of intents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder addIntentsBuilder() {
+      return getIntentsFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.cx.v3beta1.Intent.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of intents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder addIntentsBuilder(int index) {
+      return getIntentsFieldBuilder()
+          .addBuilder(index, com.google.cloud.dialogflow.cx.v3beta1.Intent.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of intents. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder>
+        getIntentsBuilderList() {
+      return getIntentsFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Intent,
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder>
+        getIntentsFieldBuilder() {
+      if (intentsBuilder_ == null) {
+        intentsBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Intent,
+                com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder>(
+                intents_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+        intents_ = null;
+      }
+      return intentsBuilder_;
+    }
+
+    private java.lang.Object nextPageToken_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return The nextPageToken.
+     */
+    public java.lang.String getNextPageToken() {
+      java.lang.Object ref = nextPageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        nextPageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return The bytes for nextPageToken.
+     */
+    public com.google.protobuf.ByteString getNextPageTokenBytes() {
+      java.lang.Object ref = nextPageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        nextPageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @param value The nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearNextPageToken() {
+
+      nextPageToken_ = getDefaultInstance().getNextPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @param value The bytes for nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListIntentsResponse> PARSER =
+      new com.google.protobuf.AbstractParser<ListIntentsResponse>() {
+        @java.lang.Override
+        public ListIntentsResponse parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ListIntentsResponse(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ListIntentsResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListIntentsResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListIntentsResponseOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListIntentsResponseOrBuilder.java
new file mode 100644
index 000000000..c50f357b6
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListIntentsResponseOrBuilder.java
@@ -0,0 +1,109 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/intent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ListIntentsResponseOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ListIntentsResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The list of intents. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Intent> getIntentsList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of intents. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Intent getIntents(int index);
+  /**
+   *
+   *
+   * <pre>
+   * The list of intents. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+   */
+  int getIntentsCount();
+  /**
+   *
+   *
+   * <pre>
+   * The list of intents. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder>
+      getIntentsOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of intents. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Intent intents = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder getIntentsOrBuilder(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The nextPageToken.
+   */
+  java.lang.String getNextPageToken();
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The bytes for nextPageToken.
+   */
+  com.google.protobuf.ByteString getNextPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListPagesRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListPagesRequest.java
new file mode 100644
index 000000000..e71aac1d9
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListPagesRequest.java
@@ -0,0 +1,1201 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/page.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Pages.ListPages][google.cloud.dialogflow.cx.v3beta1.Pages.ListPages].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListPagesRequest}
+ */
+public final class ListPagesRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ListPagesRequest)
+    ListPagesRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ListPagesRequest.newBuilder() to construct.
+  private ListPagesRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ListPagesRequest() {
+    parent_ = "";
+    languageCode_ = "";
+    pageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ListPagesRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ListPagesRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              languageCode_ = s;
+              break;
+            }
+          case 24:
+            {
+              pageSize_ = input.readInt32();
+              break;
+            }
+          case 34:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              pageToken_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListPagesRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListPagesRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to list all pages for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to list all pages for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int LANGUAGE_CODE_FIELD_NUMBER = 2;
+  private volatile java.lang.Object languageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * The language to list pages for. The following fields are language
+   * dependent:
+   * *  `Page.entry_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+   * *  `Page.transition_route.trigger_fulfillment.messages`
+   * *
+   * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The languageCode.
+   */
+  @java.lang.Override
+  public java.lang.String getLanguageCode() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      languageCode_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The language to list pages for. The following fields are language
+   * dependent:
+   * *  `Page.entry_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+   * *  `Page.transition_route.trigger_fulfillment.messages`
+   * *
+   * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getLanguageCodeBytes() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      languageCode_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int PAGE_SIZE_FIELD_NUMBER = 3;
+  private int pageSize_;
+  /**
+   *
+   *
+   * <pre>
+   * The maximum number of items to return in a single page. By default 100 and
+   * at most 1000.
+   * </pre>
+   *
+   * <code>int32 page_size = 3;</code>
+   *
+   * @return The pageSize.
+   */
+  @java.lang.Override
+  public int getPageSize() {
+    return pageSize_;
+  }
+
+  public static final int PAGE_TOKEN_FIELD_NUMBER = 4;
+  private volatile java.lang.Object pageToken_;
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 4;</code>
+   *
+   * @return The pageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getPageToken() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      pageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 4;</code>
+   *
+   * @return The bytes for pageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getPageTokenBytes() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      pageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getParentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, languageCode_);
+    }
+    if (pageSize_ != 0) {
+      output.writeInt32(3, pageSize_);
+    }
+    if (!getPageTokenBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 4, pageToken_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getParentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, languageCode_);
+    }
+    if (pageSize_ != 0) {
+      size += com.google.protobuf.CodedOutputStream.computeInt32Size(3, pageSize_);
+    }
+    if (!getPageTokenBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, pageToken_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest) obj;
+
+    if (!getParent().equals(other.getParent())) return false;
+    if (!getLanguageCode().equals(other.getLanguageCode())) return false;
+    if (getPageSize() != other.getPageSize()) return false;
+    if (!getPageToken().equals(other.getPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
+    hash = (53 * hash) + getLanguageCode().hashCode();
+    hash = (37 * hash) + PAGE_SIZE_FIELD_NUMBER;
+    hash = (53 * hash) + getPageSize();
+    hash = (37 * hash) + PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getPageToken().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Pages.ListPages][google.cloud.dialogflow.cx.v3beta1.Pages.ListPages].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListPagesRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ListPagesRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListPagesRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListPagesRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      languageCode_ = "";
+
+      pageSize_ = 0;
+
+      pageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListPagesRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest(this);
+      result.parent_ = parent_;
+      result.languageCode_ = languageCode_;
+      result.pageSize_ = pageSize_;
+      result.pageToken_ = pageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest.getDefaultInstance())
+        return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
+      }
+      if (other.getPageSize() != 0) {
+        setPageSize(other.getPageSize());
+      }
+      if (!other.getPageToken().isEmpty()) {
+        pageToken_ = other.pageToken_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to list all pages for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to list all pages for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to list all pages for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to list all pages for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to list all pages for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The language to list pages for. The following fields are language
+     * dependent:
+     * *  `Page.entry_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+     * *  `Page.transition_route.trigger_fulfillment.messages`
+     * *
+     * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list pages for. The following fields are language
+     * dependent:
+     * *  `Page.entry_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+     * *  `Page.transition_route.trigger_fulfillment.messages`
+     * *
+     * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list pages for. The following fields are language
+     * dependent:
+     * *  `Page.entry_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+     * *  `Page.transition_route.trigger_fulfillment.messages`
+     * *
+     * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list pages for. The following fields are language
+     * dependent:
+     * *  `Page.entry_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+     * *  `Page.transition_route.trigger_fulfillment.messages`
+     * *
+     * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list pages for. The following fields are language
+     * dependent:
+     * *  `Page.entry_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+     * *  `Page.transition_route.trigger_fulfillment.messages`
+     * *
+     * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int pageSize_;
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 3;</code>
+     *
+     * @return The pageSize.
+     */
+    @java.lang.Override
+    public int getPageSize() {
+      return pageSize_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 3;</code>
+     *
+     * @param value The pageSize to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageSize(int value) {
+
+      pageSize_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageSize() {
+
+      pageSize_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object pageToken_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 4;</code>
+     *
+     * @return The pageToken.
+     */
+    public java.lang.String getPageToken() {
+      java.lang.Object ref = pageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        pageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 4;</code>
+     *
+     * @return The bytes for pageToken.
+     */
+    public com.google.protobuf.ByteString getPageTokenBytes() {
+      java.lang.Object ref = pageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        pageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 4;</code>
+     *
+     * @param value The pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 4;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageToken() {
+
+      pageToken_ = getDefaultInstance().getPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 4;</code>
+     *
+     * @param value The bytes for pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ListPagesRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ListPagesRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListPagesRequest> PARSER =
+      new com.google.protobuf.AbstractParser<ListPagesRequest>() {
+        @java.lang.Override
+        public ListPagesRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ListPagesRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ListPagesRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListPagesRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ListPagesRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListPagesRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListPagesRequestOrBuilder.java
new file mode 100644
index 000000000..3f2485ac3
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListPagesRequestOrBuilder.java
@@ -0,0 +1,146 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/page.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ListPagesRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ListPagesRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to list all pages for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to list all pages for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The language to list pages for. The following fields are language
+   * dependent:
+   * *  `Page.entry_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+   * *  `Page.transition_route.trigger_fulfillment.messages`
+   * *
+   * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * The language to list pages for. The following fields are language
+   * dependent:
+   * *  `Page.entry_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+   * *  `Page.transition_route.trigger_fulfillment.messages`
+   * *
+   * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The maximum number of items to return in a single page. By default 100 and
+   * at most 1000.
+   * </pre>
+   *
+   * <code>int32 page_size = 3;</code>
+   *
+   * @return The pageSize.
+   */
+  int getPageSize();
+
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 4;</code>
+   *
+   * @return The pageToken.
+   */
+  java.lang.String getPageToken();
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 4;</code>
+   *
+   * @return The bytes for pageToken.
+   */
+  com.google.protobuf.ByteString getPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListPagesResponse.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListPagesResponse.java
new file mode 100644
index 000000000..3f7469217
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListPagesResponse.java
@@ -0,0 +1,1159 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/page.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The response message for [Pages.ListPages][google.cloud.dialogflow.cx.v3beta1.Pages.ListPages].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListPagesResponse}
+ */
+public final class ListPagesResponse extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ListPagesResponse)
+    ListPagesResponseOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ListPagesResponse.newBuilder() to construct.
+  private ListPagesResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ListPagesResponse() {
+    pages_ = java.util.Collections.emptyList();
+    nextPageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ListPagesResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ListPagesResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                pages_ = new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.Page>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              pages_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Page.parser(), extensionRegistry));
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              nextPageToken_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        pages_ = java.util.Collections.unmodifiableList(pages_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListPagesResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListPagesResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse.class,
+            com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse.Builder.class);
+  }
+
+  public static final int PAGES_FIELD_NUMBER = 1;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Page> pages_;
+  /**
+   *
+   *
+   * <pre>
+   * The list of pages. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Page> getPagesList() {
+    return pages_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of pages. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder>
+      getPagesOrBuilderList() {
+    return pages_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of pages. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+   */
+  @java.lang.Override
+  public int getPagesCount() {
+    return pages_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of pages. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Page getPages(int index) {
+    return pages_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of pages. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder getPagesOrBuilder(int index) {
+    return pages_.get(index);
+  }
+
+  public static final int NEXT_PAGE_TOKEN_FIELD_NUMBER = 2;
+  private volatile java.lang.Object nextPageToken_;
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The nextPageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getNextPageToken() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      nextPageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The bytes for nextPageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNextPageTokenBytes() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      nextPageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    for (int i = 0; i < pages_.size(); i++) {
+      output.writeMessage(1, pages_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    for (int i = 0; i < pages_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, pages_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse other =
+        (com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse) obj;
+
+    if (!getPagesList().equals(other.getPagesList())) return false;
+    if (!getNextPageToken().equals(other.getNextPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (getPagesCount() > 0) {
+      hash = (37 * hash) + PAGES_FIELD_NUMBER;
+      hash = (53 * hash) + getPagesList().hashCode();
+    }
+    hash = (37 * hash) + NEXT_PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getNextPageToken().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The response message for [Pages.ListPages][google.cloud.dialogflow.cx.v3beta1.Pages.ListPages].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListPagesResponse}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ListPagesResponse)
+      com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListPagesResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListPagesResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getPagesFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (pagesBuilder_ == null) {
+        pages_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        pagesBuilder_.clear();
+      }
+      nextPageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListPagesResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse(this);
+      int from_bitField0_ = bitField0_;
+      if (pagesBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          pages_ = java.util.Collections.unmodifiableList(pages_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.pages_ = pages_;
+      } else {
+        result.pages_ = pagesBuilder_.build();
+      }
+      result.nextPageToken_ = nextPageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse.getDefaultInstance())
+        return this;
+      if (pagesBuilder_ == null) {
+        if (!other.pages_.isEmpty()) {
+          if (pages_.isEmpty()) {
+            pages_ = other.pages_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensurePagesIsMutable();
+            pages_.addAll(other.pages_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.pages_.isEmpty()) {
+          if (pagesBuilder_.isEmpty()) {
+            pagesBuilder_.dispose();
+            pagesBuilder_ = null;
+            pages_ = other.pages_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            pagesBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getPagesFieldBuilder()
+                    : null;
+          } else {
+            pagesBuilder_.addAllMessages(other.pages_);
+          }
+        }
+      }
+      if (!other.getNextPageToken().isEmpty()) {
+        nextPageToken_ = other.nextPageToken_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Page> pages_ =
+        java.util.Collections.emptyList();
+
+    private void ensurePagesIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        pages_ = new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.Page>(pages_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Page,
+            com.google.cloud.dialogflow.cx.v3beta1.Page.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder>
+        pagesBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * The list of pages. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Page> getPagesList() {
+      if (pagesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(pages_);
+      } else {
+        return pagesBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of pages. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+     */
+    public int getPagesCount() {
+      if (pagesBuilder_ == null) {
+        return pages_.size();
+      } else {
+        return pagesBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of pages. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Page getPages(int index) {
+      if (pagesBuilder_ == null) {
+        return pages_.get(index);
+      } else {
+        return pagesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of pages. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+     */
+    public Builder setPages(int index, com.google.cloud.dialogflow.cx.v3beta1.Page value) {
+      if (pagesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensurePagesIsMutable();
+        pages_.set(index, value);
+        onChanged();
+      } else {
+        pagesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of pages. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+     */
+    public Builder setPages(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Page.Builder builderForValue) {
+      if (pagesBuilder_ == null) {
+        ensurePagesIsMutable();
+        pages_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        pagesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of pages. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+     */
+    public Builder addPages(com.google.cloud.dialogflow.cx.v3beta1.Page value) {
+      if (pagesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensurePagesIsMutable();
+        pages_.add(value);
+        onChanged();
+      } else {
+        pagesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of pages. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+     */
+    public Builder addPages(int index, com.google.cloud.dialogflow.cx.v3beta1.Page value) {
+      if (pagesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensurePagesIsMutable();
+        pages_.add(index, value);
+        onChanged();
+      } else {
+        pagesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of pages. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+     */
+    public Builder addPages(com.google.cloud.dialogflow.cx.v3beta1.Page.Builder builderForValue) {
+      if (pagesBuilder_ == null) {
+        ensurePagesIsMutable();
+        pages_.add(builderForValue.build());
+        onChanged();
+      } else {
+        pagesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of pages. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+     */
+    public Builder addPages(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Page.Builder builderForValue) {
+      if (pagesBuilder_ == null) {
+        ensurePagesIsMutable();
+        pages_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        pagesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of pages. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+     */
+    public Builder addAllPages(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.Page> values) {
+      if (pagesBuilder_ == null) {
+        ensurePagesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, pages_);
+        onChanged();
+      } else {
+        pagesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of pages. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+     */
+    public Builder clearPages() {
+      if (pagesBuilder_ == null) {
+        pages_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        pagesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of pages. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+     */
+    public Builder removePages(int index) {
+      if (pagesBuilder_ == null) {
+        ensurePagesIsMutable();
+        pages_.remove(index);
+        onChanged();
+      } else {
+        pagesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of pages. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Page.Builder getPagesBuilder(int index) {
+      return getPagesFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of pages. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder getPagesOrBuilder(int index) {
+      if (pagesBuilder_ == null) {
+        return pages_.get(index);
+      } else {
+        return pagesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of pages. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+     */
+    public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder>
+        getPagesOrBuilderList() {
+      if (pagesBuilder_ != null) {
+        return pagesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(pages_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of pages. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Page.Builder addPagesBuilder() {
+      return getPagesFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.cx.v3beta1.Page.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of pages. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Page.Builder addPagesBuilder(int index) {
+      return getPagesFieldBuilder()
+          .addBuilder(index, com.google.cloud.dialogflow.cx.v3beta1.Page.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of pages. There will be a maximum number of items returned based
+     * on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Page.Builder>
+        getPagesBuilderList() {
+      return getPagesFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Page,
+            com.google.cloud.dialogflow.cx.v3beta1.Page.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder>
+        getPagesFieldBuilder() {
+      if (pagesBuilder_ == null) {
+        pagesBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Page,
+                com.google.cloud.dialogflow.cx.v3beta1.Page.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder>(
+                pages_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+        pages_ = null;
+      }
+      return pagesBuilder_;
+    }
+
+    private java.lang.Object nextPageToken_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return The nextPageToken.
+     */
+    public java.lang.String getNextPageToken() {
+      java.lang.Object ref = nextPageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        nextPageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return The bytes for nextPageToken.
+     */
+    public com.google.protobuf.ByteString getNextPageTokenBytes() {
+      java.lang.Object ref = nextPageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        nextPageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @param value The nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearNextPageToken() {
+
+      nextPageToken_ = getDefaultInstance().getNextPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @param value The bytes for nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ListPagesResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ListPagesResponse)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListPagesResponse> PARSER =
+      new com.google.protobuf.AbstractParser<ListPagesResponse>() {
+        @java.lang.Override
+        public ListPagesResponse parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ListPagesResponse(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ListPagesResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListPagesResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ListPagesResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListPagesResponseOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListPagesResponseOrBuilder.java
new file mode 100644
index 000000000..c33879b96
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListPagesResponseOrBuilder.java
@@ -0,0 +1,109 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/page.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ListPagesResponseOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ListPagesResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The list of pages. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Page> getPagesList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of pages. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Page getPages(int index);
+  /**
+   *
+   *
+   * <pre>
+   * The list of pages. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+   */
+  int getPagesCount();
+  /**
+   *
+   *
+   * <pre>
+   * The list of pages. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder>
+      getPagesOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of pages. There will be a maximum number of items returned based
+   * on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Page pages = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder getPagesOrBuilder(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The nextPageToken.
+   */
+  java.lang.String getNextPageToken();
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The bytes for nextPageToken.
+   */
+  com.google.protobuf.ByteString getNextPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListSessionEntityTypesRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListSessionEntityTypesRequest.java
new file mode 100644
index 000000000..66675c529
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListSessionEntityTypesRequest.java
@@ -0,0 +1,949 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [SessionEntityTypes.ListSessionEntityTypes][google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes.ListSessionEntityTypes].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest}
+ */
+public final class ListSessionEntityTypesRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest)
+    ListSessionEntityTypesRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ListSessionEntityTypesRequest.newBuilder() to construct.
+  private ListSessionEntityTypesRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ListSessionEntityTypesRequest() {
+    parent_ = "";
+    pageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ListSessionEntityTypesRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ListSessionEntityTypesRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 16:
+            {
+              pageSize_ = input.readInt32();
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              pageToken_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListSessionEntityTypesRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListSessionEntityTypesRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The session to list all session entity types from.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The session to list all session entity types from.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int PAGE_SIZE_FIELD_NUMBER = 2;
+  private int pageSize_;
+  /**
+   *
+   *
+   * <pre>
+   * The maximum number of items to return in a single page. By default 100 and
+   * at most 1000.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   *
+   * @return The pageSize.
+   */
+  @java.lang.Override
+  public int getPageSize() {
+    return pageSize_;
+  }
+
+  public static final int PAGE_TOKEN_FIELD_NUMBER = 3;
+  private volatile java.lang.Object pageToken_;
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The pageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getPageToken() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      pageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The bytes for pageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getPageTokenBytes() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      pageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getParentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
+    }
+    if (pageSize_ != 0) {
+      output.writeInt32(2, pageSize_);
+    }
+    if (!getPageTokenBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, pageToken_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getParentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
+    }
+    if (pageSize_ != 0) {
+      size += com.google.protobuf.CodedOutputStream.computeInt32Size(2, pageSize_);
+    }
+    if (!getPageTokenBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, pageToken_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest) obj;
+
+    if (!getParent().equals(other.getParent())) return false;
+    if (getPageSize() != other.getPageSize()) return false;
+    if (!getPageToken().equals(other.getPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    hash = (37 * hash) + PAGE_SIZE_FIELD_NUMBER;
+    hash = (53 * hash) + getPageSize();
+    hash = (37 * hash) + PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getPageToken().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest
+      parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest
+      parseDelimitedFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [SessionEntityTypes.ListSessionEntityTypes][google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes.ListSessionEntityTypes].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListSessionEntityTypesRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListSessionEntityTypesRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest.Builder.class);
+    }
+
+    // Construct using
+    // com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      pageSize_ = 0;
+
+      pageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListSessionEntityTypesRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest
+          .getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest(this);
+      result.parent_ = parent_;
+      result.pageSize_ = pageSize_;
+      result.pageToken_ = pageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest) {
+        return mergeFrom(
+            (com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest
+              .getDefaultInstance()) return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (other.getPageSize() != 0) {
+        setPageSize(other.getPageSize());
+      }
+      if (!other.getPageToken().isEmpty()) {
+        pageToken_ = other.pageToken_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session to list all session entity types from.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session to list all session entity types from.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session to list all session entity types from.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session to list all session entity types from.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session to list all session entity types from.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int pageSize_;
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     *
+     * @return The pageSize.
+     */
+    @java.lang.Override
+    public int getPageSize() {
+      return pageSize_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     *
+     * @param value The pageSize to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageSize(int value) {
+
+      pageSize_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageSize() {
+
+      pageSize_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object pageToken_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return The pageToken.
+     */
+    public java.lang.String getPageToken() {
+      java.lang.Object ref = pageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        pageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return The bytes for pageToken.
+     */
+    public com.google.protobuf.ByteString getPageTokenBytes() {
+      java.lang.Object ref = pageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        pageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @param value The pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageToken() {
+
+      pageToken_ = getDefaultInstance().getPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @param value The bytes for pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListSessionEntityTypesRequest> PARSER =
+      new com.google.protobuf.AbstractParser<ListSessionEntityTypesRequest>() {
+        @java.lang.Override
+        public ListSessionEntityTypesRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ListSessionEntityTypesRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ListSessionEntityTypesRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListSessionEntityTypesRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListSessionEntityTypesRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListSessionEntityTypesRequestOrBuilder.java
new file mode 100644
index 000000000..549b41054
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListSessionEntityTypesRequestOrBuilder.java
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ListSessionEntityTypesRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The session to list all session entity types from.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The session to list all session entity types from.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The maximum number of items to return in a single page. By default 100 and
+   * at most 1000.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   *
+   * @return The pageSize.
+   */
+  int getPageSize();
+
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The pageToken.
+   */
+  java.lang.String getPageToken();
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The bytes for pageToken.
+   */
+  com.google.protobuf.ByteString getPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListSessionEntityTypesResponse.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListSessionEntityTypesResponse.java
new file mode 100644
index 000000000..8ca058dab
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListSessionEntityTypesResponse.java
@@ -0,0 +1,1240 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The response message for [SessionEntityTypes.ListSessionEntityTypes][google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes.ListSessionEntityTypes].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse}
+ */
+public final class ListSessionEntityTypesResponse extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse)
+    ListSessionEntityTypesResponseOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ListSessionEntityTypesResponse.newBuilder() to construct.
+  private ListSessionEntityTypesResponse(
+      com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ListSessionEntityTypesResponse() {
+    sessionEntityTypes_ = java.util.Collections.emptyList();
+    nextPageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ListSessionEntityTypesResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ListSessionEntityTypesResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                sessionEntityTypes_ =
+                    new java.util.ArrayList<
+                        com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              sessionEntityTypes_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.parser(),
+                      extensionRegistry));
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              nextPageToken_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        sessionEntityTypes_ = java.util.Collections.unmodifiableList(sessionEntityTypes_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListSessionEntityTypesResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListSessionEntityTypesResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse.class,
+            com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse.Builder.class);
+  }
+
+  public static final int SESSION_ENTITY_TYPES_FIELD_NUMBER = 1;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+      sessionEntityTypes_;
+  /**
+   *
+   *
+   * <pre>
+   * The list of session entity types. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+      getSessionEntityTypesList() {
+    return sessionEntityTypes_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of session entity types. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder>
+      getSessionEntityTypesOrBuilderList() {
+    return sessionEntityTypes_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of session entity types. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+   * </code>
+   */
+  @java.lang.Override
+  public int getSessionEntityTypesCount() {
+    return sessionEntityTypes_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of session entity types. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType getSessionEntityTypes(int index) {
+    return sessionEntityTypes_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of session entity types. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder
+      getSessionEntityTypesOrBuilder(int index) {
+    return sessionEntityTypes_.get(index);
+  }
+
+  public static final int NEXT_PAGE_TOKEN_FIELD_NUMBER = 2;
+  private volatile java.lang.Object nextPageToken_;
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no
+   * more results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The nextPageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getNextPageToken() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      nextPageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no
+   * more results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The bytes for nextPageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNextPageTokenBytes() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      nextPageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    for (int i = 0; i < sessionEntityTypes_.size(); i++) {
+      output.writeMessage(1, sessionEntityTypes_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    for (int i = 0; i < sessionEntityTypes_.size(); i++) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(1, sessionEntityTypes_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse other =
+        (com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse) obj;
+
+    if (!getSessionEntityTypesList().equals(other.getSessionEntityTypesList())) return false;
+    if (!getNextPageToken().equals(other.getNextPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (getSessionEntityTypesCount() > 0) {
+      hash = (37 * hash) + SESSION_ENTITY_TYPES_FIELD_NUMBER;
+      hash = (53 * hash) + getSessionEntityTypesList().hashCode();
+    }
+    hash = (37 * hash) + NEXT_PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getNextPageToken().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse
+      parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse
+      parseDelimitedFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The response message for [SessionEntityTypes.ListSessionEntityTypes][google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes.ListSessionEntityTypes].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse)
+      com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListSessionEntityTypesResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListSessionEntityTypesResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse.Builder.class);
+    }
+
+    // Construct using
+    // com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getSessionEntityTypesFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (sessionEntityTypesBuilder_ == null) {
+        sessionEntityTypes_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        sessionEntityTypesBuilder_.clear();
+      }
+      nextPageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListSessionEntityTypesResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse
+          .getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse(this);
+      int from_bitField0_ = bitField0_;
+      if (sessionEntityTypesBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          sessionEntityTypes_ = java.util.Collections.unmodifiableList(sessionEntityTypes_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.sessionEntityTypes_ = sessionEntityTypes_;
+      } else {
+        result.sessionEntityTypes_ = sessionEntityTypesBuilder_.build();
+      }
+      result.nextPageToken_ = nextPageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse) {
+        return mergeFrom(
+            (com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse
+              .getDefaultInstance()) return this;
+      if (sessionEntityTypesBuilder_ == null) {
+        if (!other.sessionEntityTypes_.isEmpty()) {
+          if (sessionEntityTypes_.isEmpty()) {
+            sessionEntityTypes_ = other.sessionEntityTypes_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureSessionEntityTypesIsMutable();
+            sessionEntityTypes_.addAll(other.sessionEntityTypes_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.sessionEntityTypes_.isEmpty()) {
+          if (sessionEntityTypesBuilder_.isEmpty()) {
+            sessionEntityTypesBuilder_.dispose();
+            sessionEntityTypesBuilder_ = null;
+            sessionEntityTypes_ = other.sessionEntityTypes_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            sessionEntityTypesBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getSessionEntityTypesFieldBuilder()
+                    : null;
+          } else {
+            sessionEntityTypesBuilder_.addAllMessages(other.sessionEntityTypes_);
+          }
+        }
+      }
+      if (!other.getNextPageToken().isEmpty()) {
+        nextPageToken_ = other.nextPageToken_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+        sessionEntityTypes_ = java.util.Collections.emptyList();
+
+    private void ensureSessionEntityTypesIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        sessionEntityTypes_ =
+            new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>(
+                sessionEntityTypes_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder>
+        sessionEntityTypesBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * The list of session entity types. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+        getSessionEntityTypesList() {
+      if (sessionEntityTypesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(sessionEntityTypes_);
+      } else {
+        return sessionEntityTypesBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of session entity types. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+     * </code>
+     */
+    public int getSessionEntityTypesCount() {
+      if (sessionEntityTypesBuilder_ == null) {
+        return sessionEntityTypes_.size();
+      } else {
+        return sessionEntityTypesBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of session entity types. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType getSessionEntityTypes(
+        int index) {
+      if (sessionEntityTypesBuilder_ == null) {
+        return sessionEntityTypes_.get(index);
+      } else {
+        return sessionEntityTypesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of session entity types. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+     * </code>
+     */
+    public Builder setSessionEntityTypes(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType value) {
+      if (sessionEntityTypesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureSessionEntityTypesIsMutable();
+        sessionEntityTypes_.set(index, value);
+        onChanged();
+      } else {
+        sessionEntityTypesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of session entity types. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+     * </code>
+     */
+    public Builder setSessionEntityTypes(
+        int index,
+        com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder builderForValue) {
+      if (sessionEntityTypesBuilder_ == null) {
+        ensureSessionEntityTypesIsMutable();
+        sessionEntityTypes_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        sessionEntityTypesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of session entity types. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+     * </code>
+     */
+    public Builder addSessionEntityTypes(
+        com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType value) {
+      if (sessionEntityTypesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureSessionEntityTypesIsMutable();
+        sessionEntityTypes_.add(value);
+        onChanged();
+      } else {
+        sessionEntityTypesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of session entity types. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+     * </code>
+     */
+    public Builder addSessionEntityTypes(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType value) {
+      if (sessionEntityTypesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureSessionEntityTypesIsMutable();
+        sessionEntityTypes_.add(index, value);
+        onChanged();
+      } else {
+        sessionEntityTypesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of session entity types. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+     * </code>
+     */
+    public Builder addSessionEntityTypes(
+        com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder builderForValue) {
+      if (sessionEntityTypesBuilder_ == null) {
+        ensureSessionEntityTypesIsMutable();
+        sessionEntityTypes_.add(builderForValue.build());
+        onChanged();
+      } else {
+        sessionEntityTypesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of session entity types. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+     * </code>
+     */
+    public Builder addSessionEntityTypes(
+        int index,
+        com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder builderForValue) {
+      if (sessionEntityTypesBuilder_ == null) {
+        ensureSessionEntityTypesIsMutable();
+        sessionEntityTypes_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        sessionEntityTypesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of session entity types. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+     * </code>
+     */
+    public Builder addAllSessionEntityTypes(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+            values) {
+      if (sessionEntityTypesBuilder_ == null) {
+        ensureSessionEntityTypesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, sessionEntityTypes_);
+        onChanged();
+      } else {
+        sessionEntityTypesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of session entity types. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+     * </code>
+     */
+    public Builder clearSessionEntityTypes() {
+      if (sessionEntityTypesBuilder_ == null) {
+        sessionEntityTypes_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        sessionEntityTypesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of session entity types. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+     * </code>
+     */
+    public Builder removeSessionEntityTypes(int index) {
+      if (sessionEntityTypesBuilder_ == null) {
+        ensureSessionEntityTypesIsMutable();
+        sessionEntityTypes_.remove(index);
+        onChanged();
+      } else {
+        sessionEntityTypesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of session entity types. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder
+        getSessionEntityTypesBuilder(int index) {
+      return getSessionEntityTypesFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of session entity types. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder
+        getSessionEntityTypesOrBuilder(int index) {
+      if (sessionEntityTypesBuilder_ == null) {
+        return sessionEntityTypes_.get(index);
+      } else {
+        return sessionEntityTypesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of session entity types. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+     * </code>
+     */
+    public java.util.List<
+            ? extends com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder>
+        getSessionEntityTypesOrBuilderList() {
+      if (sessionEntityTypesBuilder_ != null) {
+        return sessionEntityTypesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(sessionEntityTypes_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of session entity types. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder
+        addSessionEntityTypesBuilder() {
+      return getSessionEntityTypesFieldBuilder()
+          .addBuilder(
+              com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of session entity types. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder
+        addSessionEntityTypesBuilder(int index) {
+      return getSessionEntityTypesFieldBuilder()
+          .addBuilder(
+              index, com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of session entity types. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder>
+        getSessionEntityTypesBuilderList() {
+      return getSessionEntityTypesFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder>
+        getSessionEntityTypesFieldBuilder() {
+      if (sessionEntityTypesBuilder_ == null) {
+        sessionEntityTypesBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType,
+                com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder>(
+                sessionEntityTypes_,
+                ((bitField0_ & 0x00000001) != 0),
+                getParentForChildren(),
+                isClean());
+        sessionEntityTypes_ = null;
+      }
+      return sessionEntityTypesBuilder_;
+    }
+
+    private java.lang.Object nextPageToken_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no
+     * more results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return The nextPageToken.
+     */
+    public java.lang.String getNextPageToken() {
+      java.lang.Object ref = nextPageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        nextPageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no
+     * more results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return The bytes for nextPageToken.
+     */
+    public com.google.protobuf.ByteString getNextPageTokenBytes() {
+      java.lang.Object ref = nextPageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        nextPageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no
+     * more results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @param value The nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no
+     * more results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearNextPageToken() {
+
+      nextPageToken_ = getDefaultInstance().getNextPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no
+     * more results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @param value The bytes for nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListSessionEntityTypesResponse> PARSER =
+      new com.google.protobuf.AbstractParser<ListSessionEntityTypesResponse>() {
+        @java.lang.Override
+        public ListSessionEntityTypesResponse parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ListSessionEntityTypesResponse(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ListSessionEntityTypesResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListSessionEntityTypesResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListSessionEntityTypesResponseOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListSessionEntityTypesResponseOrBuilder.java
new file mode 100644
index 000000000..54b8663ed
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListSessionEntityTypesResponseOrBuilder.java
@@ -0,0 +1,116 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ListSessionEntityTypesResponseOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ListSessionEntityTypesResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The list of session entity types. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+   * </code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+      getSessionEntityTypesList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of session entity types. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType getSessionEntityTypes(int index);
+  /**
+   *
+   *
+   * <pre>
+   * The list of session entity types. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+   * </code>
+   */
+  int getSessionEntityTypesCount();
+  /**
+   *
+   *
+   * <pre>
+   * The list of session entity types. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+   * </code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder>
+      getSessionEntityTypesOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of session entity types. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 1;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder getSessionEntityTypesOrBuilder(
+      int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no
+   * more results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The nextPageToken.
+   */
+  java.lang.String getNextPageToken();
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no
+   * more results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The bytes for nextPageToken.
+   */
+  com.google.protobuf.ByteString getNextPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListTransitionRouteGroupsRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListTransitionRouteGroupsRequest.java
new file mode 100644
index 000000000..79083d719
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListTransitionRouteGroupsRequest.java
@@ -0,0 +1,1182 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [TransitionRouteGroups.ListTransitionRouteGroups][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.ListTransitionRouteGroups].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest}
+ */
+public final class ListTransitionRouteGroupsRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest)
+    ListTransitionRouteGroupsRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ListTransitionRouteGroupsRequest.newBuilder() to construct.
+  private ListTransitionRouteGroupsRequest(
+      com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ListTransitionRouteGroupsRequest() {
+    parent_ = "";
+    pageToken_ = "";
+    languageCode_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ListTransitionRouteGroupsRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ListTransitionRouteGroupsRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 16:
+            {
+              pageSize_ = input.readInt32();
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              pageToken_ = s;
+              break;
+            }
+          case 34:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              languageCode_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListTransitionRouteGroupsRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListTransitionRouteGroupsRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to list all transition route groups for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to list all transition route groups for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int PAGE_SIZE_FIELD_NUMBER = 2;
+  private int pageSize_;
+  /**
+   *
+   *
+   * <pre>
+   * The maximum number of items to return in a single page. By default 100 and
+   * at most 1000.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   *
+   * @return The pageSize.
+   */
+  @java.lang.Override
+  public int getPageSize() {
+    return pageSize_;
+  }
+
+  public static final int PAGE_TOKEN_FIELD_NUMBER = 3;
+  private volatile java.lang.Object pageToken_;
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The pageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getPageToken() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      pageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The bytes for pageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getPageTokenBytes() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
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+  public static final int LANGUAGE_CODE_FIELD_NUMBER = 4;
+  private volatile java.lang.Object languageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * The language to list transition route groups for. The field
+   * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+   * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 4;</code>
+   *
+   * @return The languageCode.
+   */
+  @java.lang.Override
+  public java.lang.String getLanguageCode() {
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+      languageCode_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The language to list transition route groups for. The field
+   * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+   * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 4;</code>
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+      output.writeInt32(2, pageSize_);
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+    if (!getPageTokenBytes().isEmpty()) {
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+    if (!getLanguageCodeBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 4, languageCode_);
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+    unknownFields.writeTo(output);
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+
+    size = 0;
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+    if (pageSize_ != 0) {
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+    if (!getPageTokenBytes().isEmpty()) {
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+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
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+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest) obj;
+
+    if (!getParent().equals(other.getParent())) return false;
+    if (getPageSize() != other.getPageSize()) return false;
+    if (!getPageToken().equals(other.getPageToken())) return false;
+    if (!getLanguageCode().equals(other.getLanguageCode())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    hash = (37 * hash) + PAGE_SIZE_FIELD_NUMBER;
+    hash = (53 * hash) + getPageSize();
+    hash = (37 * hash) + PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getPageToken().hashCode();
+    hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
+    hash = (53 * hash) + getLanguageCode().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest
+      parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest
+      parseDelimitedFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [TransitionRouteGroups.ListTransitionRouteGroups][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.ListTransitionRouteGroups].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListTransitionRouteGroupsRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
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+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest.Builder
+                  .class);
+    }
+
+    // Construct using
+    // com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      pageSize_ = 0;
+
+      pageToken_ = "";
+
+      languageCode_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListTransitionRouteGroupsRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest
+          .getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest result =
+          buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest(this);
+      result.parent_ = parent_;
+      result.pageSize_ = pageSize_;
+      result.pageToken_ = pageToken_;
+      result.languageCode_ = languageCode_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
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+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
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+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
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+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other
+          instanceof com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest) {
+        return mergeFrom(
+            (com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest
+              .getDefaultInstance()) return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
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+      if (other.getPageSize() != 0) {
+        setPageSize(other.getPageSize());
+      }
+      if (!other.getPageToken().isEmpty()) {
+        pageToken_ = other.pageToken_;
+        onChanged();
+      }
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to list all transition route groups for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to list all transition route groups for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to list all transition route groups for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to list all transition route groups for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to list all transition route groups for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int pageSize_;
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     *
+     * @return The pageSize.
+     */
+    @java.lang.Override
+    public int getPageSize() {
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+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
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+     *
+     * <code>int32 page_size = 2;</code>
+     *
+     * @param value The pageSize to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageSize(int value) {
+
+      pageSize_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     *
+     * @return This builder for chaining.
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+    public Builder clearPageSize() {
+
+      pageSize_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object pageToken_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return The pageToken.
+     */
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+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        pageToken_ = s;
+        return s;
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+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return The bytes for pageToken.
+     */
+    public com.google.protobuf.ByteString getPageTokenBytes() {
+      java.lang.Object ref = pageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
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+        pageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
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+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @param value The pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageToken() {
+
+      pageToken_ = getDefaultInstance().getPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @param value The bytes for pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The language to list transition route groups for. The field
+     * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+     * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 4;</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list transition route groups for. The field
+     * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+     * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 4;</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list transition route groups for. The field
+     * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+     * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 4;</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list transition route groups for. The field
+     * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+     * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 4;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list transition route groups for. The field
+     * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+     * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 4;</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE =
+        new com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListTransitionRouteGroupsRequest> PARSER =
+      new com.google.protobuf.AbstractParser<ListTransitionRouteGroupsRequest>() {
+        @java.lang.Override
+        public ListTransitionRouteGroupsRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ListTransitionRouteGroupsRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ListTransitionRouteGroupsRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListTransitionRouteGroupsRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListTransitionRouteGroupsRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListTransitionRouteGroupsRequestOrBuilder.java
new file mode 100644
index 000000000..3f6775fd6
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListTransitionRouteGroupsRequestOrBuilder.java
@@ -0,0 +1,136 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ListTransitionRouteGroupsRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to list all transition route groups for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to list all transition route groups for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The maximum number of items to return in a single page. By default 100 and
+   * at most 1000.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   *
+   * @return The pageSize.
+   */
+  int getPageSize();
+
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The pageToken.
+   */
+  java.lang.String getPageToken();
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The bytes for pageToken.
+   */
+  com.google.protobuf.ByteString getPageTokenBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The language to list transition route groups for. The field
+   * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+   * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 4;</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * The language to list transition route groups for. The field
+   * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+   * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 4;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListTransitionRouteGroupsResponse.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListTransitionRouteGroupsResponse.java
new file mode 100644
index 000000000..bc31e0a46
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListTransitionRouteGroupsResponse.java
@@ -0,0 +1,1300 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The response message for [TransitionRouteGroups.ListTransitionRouteGroups][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.ListTransitionRouteGroups].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse}
+ */
+public final class ListTransitionRouteGroupsResponse extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse)
+    ListTransitionRouteGroupsResponseOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ListTransitionRouteGroupsResponse.newBuilder() to construct.
+  private ListTransitionRouteGroupsResponse(
+      com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ListTransitionRouteGroupsResponse() {
+    transitionRouteGroups_ = java.util.Collections.emptyList();
+    nextPageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ListTransitionRouteGroupsResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ListTransitionRouteGroupsResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                transitionRouteGroups_ =
+                    new java.util.ArrayList<
+                        com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              transitionRouteGroups_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.parser(),
+                      extensionRegistry));
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              nextPageToken_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        transitionRouteGroups_ = java.util.Collections.unmodifiableList(transitionRouteGroups_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListTransitionRouteGroupsResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListTransitionRouteGroupsResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse.class,
+            com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse.Builder.class);
+  }
+
+  public static final int TRANSITION_ROUTE_GROUPS_FIELD_NUMBER = 1;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+      transitionRouteGroups_;
+  /**
+   *
+   *
+   * <pre>
+   * The list of transition route groups. There will be a maximum number of
+   * items returned based on the page_size field in the request. The list may in
+   * some cases be empty or contain fewer entries than page_size even if this
+   * isn't the last page.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+      getTransitionRouteGroupsList() {
+    return transitionRouteGroups_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of transition route groups. There will be a maximum number of
+   * items returned based on the page_size field in the request. The list may in
+   * some cases be empty or contain fewer entries than page_size even if this
+   * isn't the last page.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<
+          ? extends com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupOrBuilder>
+      getTransitionRouteGroupsOrBuilderList() {
+    return transitionRouteGroups_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of transition route groups. There will be a maximum number of
+   * items returned based on the page_size field in the request. The list may in
+   * some cases be empty or contain fewer entries than page_size even if this
+   * isn't the last page.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+   * </code>
+   */
+  @java.lang.Override
+  public int getTransitionRouteGroupsCount() {
+    return transitionRouteGroups_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of transition route groups. There will be a maximum number of
+   * items returned based on the page_size field in the request. The list may in
+   * some cases be empty or contain fewer entries than page_size even if this
+   * isn't the last page.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup getTransitionRouteGroups(
+      int index) {
+    return transitionRouteGroups_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of transition route groups. There will be a maximum number of
+   * items returned based on the page_size field in the request. The list may in
+   * some cases be empty or contain fewer entries than page_size even if this
+   * isn't the last page.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupOrBuilder
+      getTransitionRouteGroupsOrBuilder(int index) {
+    return transitionRouteGroups_.get(index);
+  }
+
+  public static final int NEXT_PAGE_TOKEN_FIELD_NUMBER = 2;
+  private volatile java.lang.Object nextPageToken_;
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The nextPageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getNextPageToken() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      nextPageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The bytes for nextPageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNextPageTokenBytes() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      nextPageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    for (int i = 0; i < transitionRouteGroups_.size(); i++) {
+      output.writeMessage(1, transitionRouteGroups_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    for (int i = 0; i < transitionRouteGroups_.size(); i++) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              1, transitionRouteGroups_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj
+        instanceof com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse other =
+        (com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse) obj;
+
+    if (!getTransitionRouteGroupsList().equals(other.getTransitionRouteGroupsList())) return false;
+    if (!getNextPageToken().equals(other.getNextPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (getTransitionRouteGroupsCount() > 0) {
+      hash = (37 * hash) + TRANSITION_ROUTE_GROUPS_FIELD_NUMBER;
+      hash = (53 * hash) + getTransitionRouteGroupsList().hashCode();
+    }
+    hash = (37 * hash) + NEXT_PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getNextPageToken().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse
+      parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse
+      parseDelimitedFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The response message for [TransitionRouteGroups.ListTransitionRouteGroups][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.ListTransitionRouteGroups].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse)
+      com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListTransitionRouteGroupsResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListTransitionRouteGroupsResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse.Builder
+                  .class);
+    }
+
+    // Construct using
+    // com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getTransitionRouteGroupsFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (transitionRouteGroupsBuilder_ == null) {
+        transitionRouteGroups_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        transitionRouteGroupsBuilder_.clear();
+      }
+      nextPageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListTransitionRouteGroupsResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse
+          .getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse result =
+          buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse(this);
+      int from_bitField0_ = bitField0_;
+      if (transitionRouteGroupsBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          transitionRouteGroups_ = java.util.Collections.unmodifiableList(transitionRouteGroups_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.transitionRouteGroups_ = transitionRouteGroups_;
+      } else {
+        result.transitionRouteGroups_ = transitionRouteGroupsBuilder_.build();
+      }
+      result.nextPageToken_ = nextPageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other
+          instanceof com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse) {
+        return mergeFrom(
+            (com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse
+              .getDefaultInstance()) return this;
+      if (transitionRouteGroupsBuilder_ == null) {
+        if (!other.transitionRouteGroups_.isEmpty()) {
+          if (transitionRouteGroups_.isEmpty()) {
+            transitionRouteGroups_ = other.transitionRouteGroups_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureTransitionRouteGroupsIsMutable();
+            transitionRouteGroups_.addAll(other.transitionRouteGroups_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.transitionRouteGroups_.isEmpty()) {
+          if (transitionRouteGroupsBuilder_.isEmpty()) {
+            transitionRouteGroupsBuilder_.dispose();
+            transitionRouteGroupsBuilder_ = null;
+            transitionRouteGroups_ = other.transitionRouteGroups_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            transitionRouteGroupsBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getTransitionRouteGroupsFieldBuilder()
+                    : null;
+          } else {
+            transitionRouteGroupsBuilder_.addAllMessages(other.transitionRouteGroups_);
+          }
+        }
+      }
+      if (!other.getNextPageToken().isEmpty()) {
+        nextPageToken_ = other.nextPageToken_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+        transitionRouteGroups_ = java.util.Collections.emptyList();
+
+    private void ensureTransitionRouteGroupsIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        transitionRouteGroups_ =
+            new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>(
+                transitionRouteGroups_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupOrBuilder>
+        transitionRouteGroupsBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * The list of transition route groups. There will be a maximum number of
+     * items returned based on the page_size field in the request. The list may in
+     * some cases be empty or contain fewer entries than page_size even if this
+     * isn't the last page.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+        getTransitionRouteGroupsList() {
+      if (transitionRouteGroupsBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(transitionRouteGroups_);
+      } else {
+        return transitionRouteGroupsBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of transition route groups. There will be a maximum number of
+     * items returned based on the page_size field in the request. The list may in
+     * some cases be empty or contain fewer entries than page_size even if this
+     * isn't the last page.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+     * </code>
+     */
+    public int getTransitionRouteGroupsCount() {
+      if (transitionRouteGroupsBuilder_ == null) {
+        return transitionRouteGroups_.size();
+      } else {
+        return transitionRouteGroupsBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of transition route groups. There will be a maximum number of
+     * items returned based on the page_size field in the request. The list may in
+     * some cases be empty or contain fewer entries than page_size even if this
+     * isn't the last page.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup getTransitionRouteGroups(
+        int index) {
+      if (transitionRouteGroupsBuilder_ == null) {
+        return transitionRouteGroups_.get(index);
+      } else {
+        return transitionRouteGroupsBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of transition route groups. There will be a maximum number of
+     * items returned based on the page_size field in the request. The list may in
+     * some cases be empty or contain fewer entries than page_size even if this
+     * isn't the last page.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+     * </code>
+     */
+    public Builder setTransitionRouteGroups(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup value) {
+      if (transitionRouteGroupsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTransitionRouteGroupsIsMutable();
+        transitionRouteGroups_.set(index, value);
+        onChanged();
+      } else {
+        transitionRouteGroupsBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of transition route groups. There will be a maximum number of
+     * items returned based on the page_size field in the request. The list may in
+     * some cases be empty or contain fewer entries than page_size even if this
+     * isn't the last page.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+     * </code>
+     */
+    public Builder setTransitionRouteGroups(
+        int index,
+        com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder builderForValue) {
+      if (transitionRouteGroupsBuilder_ == null) {
+        ensureTransitionRouteGroupsIsMutable();
+        transitionRouteGroups_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        transitionRouteGroupsBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of transition route groups. There will be a maximum number of
+     * items returned based on the page_size field in the request. The list may in
+     * some cases be empty or contain fewer entries than page_size even if this
+     * isn't the last page.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+     * </code>
+     */
+    public Builder addTransitionRouteGroups(
+        com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup value) {
+      if (transitionRouteGroupsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTransitionRouteGroupsIsMutable();
+        transitionRouteGroups_.add(value);
+        onChanged();
+      } else {
+        transitionRouteGroupsBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of transition route groups. There will be a maximum number of
+     * items returned based on the page_size field in the request. The list may in
+     * some cases be empty or contain fewer entries than page_size even if this
+     * isn't the last page.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+     * </code>
+     */
+    public Builder addTransitionRouteGroups(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup value) {
+      if (transitionRouteGroupsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTransitionRouteGroupsIsMutable();
+        transitionRouteGroups_.add(index, value);
+        onChanged();
+      } else {
+        transitionRouteGroupsBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of transition route groups. There will be a maximum number of
+     * items returned based on the page_size field in the request. The list may in
+     * some cases be empty or contain fewer entries than page_size even if this
+     * isn't the last page.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+     * </code>
+     */
+    public Builder addTransitionRouteGroups(
+        com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder builderForValue) {
+      if (transitionRouteGroupsBuilder_ == null) {
+        ensureTransitionRouteGroupsIsMutable();
+        transitionRouteGroups_.add(builderForValue.build());
+        onChanged();
+      } else {
+        transitionRouteGroupsBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of transition route groups. There will be a maximum number of
+     * items returned based on the page_size field in the request. The list may in
+     * some cases be empty or contain fewer entries than page_size even if this
+     * isn't the last page.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+     * </code>
+     */
+    public Builder addTransitionRouteGroups(
+        int index,
+        com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder builderForValue) {
+      if (transitionRouteGroupsBuilder_ == null) {
+        ensureTransitionRouteGroupsIsMutable();
+        transitionRouteGroups_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        transitionRouteGroupsBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of transition route groups. There will be a maximum number of
+     * items returned based on the page_size field in the request. The list may in
+     * some cases be empty or contain fewer entries than page_size even if this
+     * isn't the last page.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+     * </code>
+     */
+    public Builder addAllTransitionRouteGroups(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+            values) {
+      if (transitionRouteGroupsBuilder_ == null) {
+        ensureTransitionRouteGroupsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, transitionRouteGroups_);
+        onChanged();
+      } else {
+        transitionRouteGroupsBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of transition route groups. There will be a maximum number of
+     * items returned based on the page_size field in the request. The list may in
+     * some cases be empty or contain fewer entries than page_size even if this
+     * isn't the last page.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+     * </code>
+     */
+    public Builder clearTransitionRouteGroups() {
+      if (transitionRouteGroupsBuilder_ == null) {
+        transitionRouteGroups_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        transitionRouteGroupsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of transition route groups. There will be a maximum number of
+     * items returned based on the page_size field in the request. The list may in
+     * some cases be empty or contain fewer entries than page_size even if this
+     * isn't the last page.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+     * </code>
+     */
+    public Builder removeTransitionRouteGroups(int index) {
+      if (transitionRouteGroupsBuilder_ == null) {
+        ensureTransitionRouteGroupsIsMutable();
+        transitionRouteGroups_.remove(index);
+        onChanged();
+      } else {
+        transitionRouteGroupsBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of transition route groups. There will be a maximum number of
+     * items returned based on the page_size field in the request. The list may in
+     * some cases be empty or contain fewer entries than page_size even if this
+     * isn't the last page.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder
+        getTransitionRouteGroupsBuilder(int index) {
+      return getTransitionRouteGroupsFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of transition route groups. There will be a maximum number of
+     * items returned based on the page_size field in the request. The list may in
+     * some cases be empty or contain fewer entries than page_size even if this
+     * isn't the last page.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupOrBuilder
+        getTransitionRouteGroupsOrBuilder(int index) {
+      if (transitionRouteGroupsBuilder_ == null) {
+        return transitionRouteGroups_.get(index);
+      } else {
+        return transitionRouteGroupsBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of transition route groups. There will be a maximum number of
+     * items returned based on the page_size field in the request. The list may in
+     * some cases be empty or contain fewer entries than page_size even if this
+     * isn't the last page.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+     * </code>
+     */
+    public java.util.List<
+            ? extends com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupOrBuilder>
+        getTransitionRouteGroupsOrBuilderList() {
+      if (transitionRouteGroupsBuilder_ != null) {
+        return transitionRouteGroupsBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(transitionRouteGroups_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of transition route groups. There will be a maximum number of
+     * items returned based on the page_size field in the request. The list may in
+     * some cases be empty or contain fewer entries than page_size even if this
+     * isn't the last page.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder
+        addTransitionRouteGroupsBuilder() {
+      return getTransitionRouteGroupsFieldBuilder()
+          .addBuilder(
+              com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of transition route groups. There will be a maximum number of
+     * items returned based on the page_size field in the request. The list may in
+     * some cases be empty or contain fewer entries than page_size even if this
+     * isn't the last page.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder
+        addTransitionRouteGroupsBuilder(int index) {
+      return getTransitionRouteGroupsFieldBuilder()
+          .addBuilder(
+              index,
+              com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of transition route groups. There will be a maximum number of
+     * items returned based on the page_size field in the request. The list may in
+     * some cases be empty or contain fewer entries than page_size even if this
+     * isn't the last page.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder>
+        getTransitionRouteGroupsBuilderList() {
+      return getTransitionRouteGroupsFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupOrBuilder>
+        getTransitionRouteGroupsFieldBuilder() {
+      if (transitionRouteGroupsBuilder_ == null) {
+        transitionRouteGroupsBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup,
+                com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupOrBuilder>(
+                transitionRouteGroups_,
+                ((bitField0_ & 0x00000001) != 0),
+                getParentForChildren(),
+                isClean());
+        transitionRouteGroups_ = null;
+      }
+      return transitionRouteGroupsBuilder_;
+    }
+
+    private java.lang.Object nextPageToken_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return The nextPageToken.
+     */
+    public java.lang.String getNextPageToken() {
+      java.lang.Object ref = nextPageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        nextPageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return The bytes for nextPageToken.
+     */
+    public com.google.protobuf.ByteString getNextPageTokenBytes() {
+      java.lang.Object ref = nextPageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        nextPageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @param value The nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearNextPageToken() {
+
+      nextPageToken_ = getDefaultInstance().getNextPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @param value The bytes for nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE =
+        new com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListTransitionRouteGroupsResponse> PARSER =
+      new com.google.protobuf.AbstractParser<ListTransitionRouteGroupsResponse>() {
+        @java.lang.Override
+        public ListTransitionRouteGroupsResponse parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ListTransitionRouteGroupsResponse(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ListTransitionRouteGroupsResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListTransitionRouteGroupsResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListTransitionRouteGroupsResponseOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListTransitionRouteGroupsResponseOrBuilder.java
new file mode 100644
index 000000000..757c64ce0
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListTransitionRouteGroupsResponseOrBuilder.java
@@ -0,0 +1,131 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ListTransitionRouteGroupsResponseOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ListTransitionRouteGroupsResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The list of transition route groups. There will be a maximum number of
+   * items returned based on the page_size field in the request. The list may in
+   * some cases be empty or contain fewer entries than page_size even if this
+   * isn't the last page.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+   * </code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup>
+      getTransitionRouteGroupsList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of transition route groups. There will be a maximum number of
+   * items returned based on the page_size field in the request. The list may in
+   * some cases be empty or contain fewer entries than page_size even if this
+   * isn't the last page.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup getTransitionRouteGroups(int index);
+  /**
+   *
+   *
+   * <pre>
+   * The list of transition route groups. There will be a maximum number of
+   * items returned based on the page_size field in the request. The list may in
+   * some cases be empty or contain fewer entries than page_size even if this
+   * isn't the last page.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+   * </code>
+   */
+  int getTransitionRouteGroupsCount();
+  /**
+   *
+   *
+   * <pre>
+   * The list of transition route groups. There will be a maximum number of
+   * items returned based on the page_size field in the request. The list may in
+   * some cases be empty or contain fewer entries than page_size even if this
+   * isn't the last page.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+   * </code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupOrBuilder>
+      getTransitionRouteGroupsOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of transition route groups. There will be a maximum number of
+   * items returned based on the page_size field in the request. The list may in
+   * some cases be empty or contain fewer entries than page_size even if this
+   * isn't the last page.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_groups = 1;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupOrBuilder
+      getTransitionRouteGroupsOrBuilder(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The nextPageToken.
+   */
+  java.lang.String getNextPageToken();
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The bytes for nextPageToken.
+   */
+  com.google.protobuf.ByteString getNextPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListVersionsRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListVersionsRequest.java
new file mode 100644
index 000000000..7261b0a8a
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListVersionsRequest.java
@@ -0,0 +1,938 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/version.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Versions.ListVersions][google.cloud.dialogflow.cx.v3beta1.Versions.ListVersions].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest}
+ */
+public final class ListVersionsRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest)
+    ListVersionsRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ListVersionsRequest.newBuilder() to construct.
+  private ListVersionsRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ListVersionsRequest() {
+    parent_ = "";
+    pageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ListVersionsRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ListVersionsRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 16:
+            {
+              pageSize_ = input.readInt32();
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              pageToken_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListVersionsRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListVersionsRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to list all versions for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to list all versions for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int PAGE_SIZE_FIELD_NUMBER = 2;
+  private int pageSize_;
+  /**
+   *
+   *
+   * <pre>
+   * The maximum number of items to return in a single page. By default 20 and
+   * at most 100.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   *
+   * @return The pageSize.
+   */
+  @java.lang.Override
+  public int getPageSize() {
+    return pageSize_;
+  }
+
+  public static final int PAGE_TOKEN_FIELD_NUMBER = 3;
+  private volatile java.lang.Object pageToken_;
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+   * <pre>
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+   * </pre>
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+  public java.lang.String getPageToken() {
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+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
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+    memoizedIsInitialized = 1;
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+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
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+  public int getSerializedSize() {
+    int size = memoizedSize;
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+
+    size = 0;
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+    if (!getPageTokenBytes().isEmpty()) {
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+    memoizedSize = size;
+    return size;
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+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest other =
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+
+    if (!getParent().equals(other.getParent())) return false;
+    if (getPageSize() != other.getPageSize()) return false;
+    if (!getPageToken().equals(other.getPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    hash = (37 * hash) + PAGE_SIZE_FIELD_NUMBER;
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+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Versions.ListVersions][google.cloud.dialogflow.cx.v3beta1.Versions.ListVersions].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListVersionsRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListVersionsRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      pageSize_ = 0;
+
+      pageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListVersionsRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest(this);
+      result.parent_ = parent_;
+      result.pageSize_ = pageSize_;
+      result.pageToken_ = pageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest.getDefaultInstance())
+        return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (other.getPageSize() != 0) {
+        setPageSize(other.getPageSize());
+      }
+      if (!other.getPageToken().isEmpty()) {
+        pageToken_ = other.pageToken_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to list all versions for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to list all versions for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to list all versions for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to list all versions for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to list all versions for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int pageSize_;
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 20 and
+     * at most 100.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     *
+     * @return The pageSize.
+     */
+    @java.lang.Override
+    public int getPageSize() {
+      return pageSize_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 20 and
+     * at most 100.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     *
+     * @param value The pageSize to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageSize(int value) {
+
+      pageSize_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 20 and
+     * at most 100.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageSize() {
+
+      pageSize_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object pageToken_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return The pageToken.
+     */
+    public java.lang.String getPageToken() {
+      java.lang.Object ref = pageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        pageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return The bytes for pageToken.
+     */
+    public com.google.protobuf.ByteString getPageTokenBytes() {
+      java.lang.Object ref = pageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        pageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @param value The pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageToken() {
+
+      pageToken_ = getDefaultInstance().getPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @param value The bytes for pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListVersionsRequest> PARSER =
+      new com.google.protobuf.AbstractParser<ListVersionsRequest>() {
+        @java.lang.Override
+        public ListVersionsRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ListVersionsRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ListVersionsRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListVersionsRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListVersionsRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListVersionsRequestOrBuilder.java
new file mode 100644
index 000000000..15cb6c2d6
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListVersionsRequestOrBuilder.java
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/version.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ListVersionsRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ListVersionsRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to list all versions for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to list all versions for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The maximum number of items to return in a single page. By default 20 and
+   * at most 100.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   *
+   * @return The pageSize.
+   */
+  int getPageSize();
+
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The pageToken.
+   */
+  java.lang.String getPageToken();
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The bytes for pageToken.
+   */
+  com.google.protobuf.ByteString getPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListVersionsResponse.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListVersionsResponse.java
new file mode 100644
index 000000000..786f5eead
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListVersionsResponse.java
@@ -0,0 +1,1185 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/version.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The response message for [Versions.ListVersions][google.cloud.dialogflow.cx.v3beta1.Versions.ListVersions].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse}
+ */
+public final class ListVersionsResponse extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse)
+    ListVersionsResponseOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ListVersionsResponse.newBuilder() to construct.
+  private ListVersionsResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ListVersionsResponse() {
+    versions_ = java.util.Collections.emptyList();
+    nextPageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ListVersionsResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ListVersionsResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                versions_ =
+                    new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.Version>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              versions_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Version.parser(), extensionRegistry));
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              nextPageToken_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        versions_ = java.util.Collections.unmodifiableList(versions_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListVersionsResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListVersionsResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse.class,
+            com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse.Builder.class);
+  }
+
+  public static final int VERSIONS_FIELD_NUMBER = 1;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Version> versions_;
+  /**
+   *
+   *
+   * <pre>
+   * A list of versions. There will be a maximum number of items returned based
+   * on the page_size field in the request. The list may in some cases be empty
+   * or contain fewer entries than page_size even if this isn't the last page.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Version> getVersionsList() {
+    return versions_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A list of versions. There will be a maximum number of items returned based
+   * on the page_size field in the request. The list may in some cases be empty
+   * or contain fewer entries than page_size even if this isn't the last page.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.VersionOrBuilder>
+      getVersionsOrBuilderList() {
+    return versions_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A list of versions. There will be a maximum number of items returned based
+   * on the page_size field in the request. The list may in some cases be empty
+   * or contain fewer entries than page_size even if this isn't the last page.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+   */
+  @java.lang.Override
+  public int getVersionsCount() {
+    return versions_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A list of versions. There will be a maximum number of items returned based
+   * on the page_size field in the request. The list may in some cases be empty
+   * or contain fewer entries than page_size even if this isn't the last page.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Version getVersions(int index) {
+    return versions_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A list of versions. There will be a maximum number of items returned based
+   * on the page_size field in the request. The list may in some cases be empty
+   * or contain fewer entries than page_size even if this isn't the last page.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.VersionOrBuilder getVersionsOrBuilder(int index) {
+    return versions_.get(index);
+  }
+
+  public static final int NEXT_PAGE_TOKEN_FIELD_NUMBER = 2;
+  private volatile java.lang.Object nextPageToken_;
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The nextPageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getNextPageToken() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      nextPageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The bytes for nextPageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNextPageTokenBytes() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      nextPageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    for (int i = 0; i < versions_.size(); i++) {
+      output.writeMessage(1, versions_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    for (int i = 0; i < versions_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, versions_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse other =
+        (com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse) obj;
+
+    if (!getVersionsList().equals(other.getVersionsList())) return false;
+    if (!getNextPageToken().equals(other.getNextPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (getVersionsCount() > 0) {
+      hash = (37 * hash) + VERSIONS_FIELD_NUMBER;
+      hash = (53 * hash) + getVersionsList().hashCode();
+    }
+    hash = (37 * hash) + NEXT_PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getNextPageToken().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The response message for [Versions.ListVersions][google.cloud.dialogflow.cx.v3beta1.Versions.ListVersions].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse)
+      com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListVersionsResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListVersionsResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getVersionsFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (versionsBuilder_ == null) {
+        versions_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        versionsBuilder_.clear();
+      }
+      nextPageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListVersionsResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse(this);
+      int from_bitField0_ = bitField0_;
+      if (versionsBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          versions_ = java.util.Collections.unmodifiableList(versions_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.versions_ = versions_;
+      } else {
+        result.versions_ = versionsBuilder_.build();
+      }
+      result.nextPageToken_ = nextPageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse.getDefaultInstance())
+        return this;
+      if (versionsBuilder_ == null) {
+        if (!other.versions_.isEmpty()) {
+          if (versions_.isEmpty()) {
+            versions_ = other.versions_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureVersionsIsMutable();
+            versions_.addAll(other.versions_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.versions_.isEmpty()) {
+          if (versionsBuilder_.isEmpty()) {
+            versionsBuilder_.dispose();
+            versionsBuilder_ = null;
+            versions_ = other.versions_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            versionsBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getVersionsFieldBuilder()
+                    : null;
+          } else {
+            versionsBuilder_.addAllMessages(other.versions_);
+          }
+        }
+      }
+      if (!other.getNextPageToken().isEmpty()) {
+        nextPageToken_ = other.nextPageToken_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Version> versions_ =
+        java.util.Collections.emptyList();
+
+    private void ensureVersionsIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        versions_ =
+            new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.Version>(versions_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Version,
+            com.google.cloud.dialogflow.cx.v3beta1.Version.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.VersionOrBuilder>
+        versionsBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * A list of versions. There will be a maximum number of items returned based
+     * on the page_size field in the request. The list may in some cases be empty
+     * or contain fewer entries than page_size even if this isn't the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Version> getVersionsList() {
+      if (versionsBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(versions_);
+      } else {
+        return versionsBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of versions. There will be a maximum number of items returned based
+     * on the page_size field in the request. The list may in some cases be empty
+     * or contain fewer entries than page_size even if this isn't the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+     */
+    public int getVersionsCount() {
+      if (versionsBuilder_ == null) {
+        return versions_.size();
+      } else {
+        return versionsBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of versions. There will be a maximum number of items returned based
+     * on the page_size field in the request. The list may in some cases be empty
+     * or contain fewer entries than page_size even if this isn't the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Version getVersions(int index) {
+      if (versionsBuilder_ == null) {
+        return versions_.get(index);
+      } else {
+        return versionsBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of versions. There will be a maximum number of items returned based
+     * on the page_size field in the request. The list may in some cases be empty
+     * or contain fewer entries than page_size even if this isn't the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+     */
+    public Builder setVersions(int index, com.google.cloud.dialogflow.cx.v3beta1.Version value) {
+      if (versionsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureVersionsIsMutable();
+        versions_.set(index, value);
+        onChanged();
+      } else {
+        versionsBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of versions. There will be a maximum number of items returned based
+     * on the page_size field in the request. The list may in some cases be empty
+     * or contain fewer entries than page_size even if this isn't the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+     */
+    public Builder setVersions(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Version.Builder builderForValue) {
+      if (versionsBuilder_ == null) {
+        ensureVersionsIsMutable();
+        versions_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        versionsBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of versions. There will be a maximum number of items returned based
+     * on the page_size field in the request. The list may in some cases be empty
+     * or contain fewer entries than page_size even if this isn't the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+     */
+    public Builder addVersions(com.google.cloud.dialogflow.cx.v3beta1.Version value) {
+      if (versionsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureVersionsIsMutable();
+        versions_.add(value);
+        onChanged();
+      } else {
+        versionsBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of versions. There will be a maximum number of items returned based
+     * on the page_size field in the request. The list may in some cases be empty
+     * or contain fewer entries than page_size even if this isn't the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+     */
+    public Builder addVersions(int index, com.google.cloud.dialogflow.cx.v3beta1.Version value) {
+      if (versionsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureVersionsIsMutable();
+        versions_.add(index, value);
+        onChanged();
+      } else {
+        versionsBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of versions. There will be a maximum number of items returned based
+     * on the page_size field in the request. The list may in some cases be empty
+     * or contain fewer entries than page_size even if this isn't the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+     */
+    public Builder addVersions(
+        com.google.cloud.dialogflow.cx.v3beta1.Version.Builder builderForValue) {
+      if (versionsBuilder_ == null) {
+        ensureVersionsIsMutable();
+        versions_.add(builderForValue.build());
+        onChanged();
+      } else {
+        versionsBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of versions. There will be a maximum number of items returned based
+     * on the page_size field in the request. The list may in some cases be empty
+     * or contain fewer entries than page_size even if this isn't the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+     */
+    public Builder addVersions(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Version.Builder builderForValue) {
+      if (versionsBuilder_ == null) {
+        ensureVersionsIsMutable();
+        versions_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        versionsBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of versions. There will be a maximum number of items returned based
+     * on the page_size field in the request. The list may in some cases be empty
+     * or contain fewer entries than page_size even if this isn't the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+     */
+    public Builder addAllVersions(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.Version> values) {
+      if (versionsBuilder_ == null) {
+        ensureVersionsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, versions_);
+        onChanged();
+      } else {
+        versionsBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of versions. There will be a maximum number of items returned based
+     * on the page_size field in the request. The list may in some cases be empty
+     * or contain fewer entries than page_size even if this isn't the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+     */
+    public Builder clearVersions() {
+      if (versionsBuilder_ == null) {
+        versions_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        versionsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of versions. There will be a maximum number of items returned based
+     * on the page_size field in the request. The list may in some cases be empty
+     * or contain fewer entries than page_size even if this isn't the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+     */
+    public Builder removeVersions(int index) {
+      if (versionsBuilder_ == null) {
+        ensureVersionsIsMutable();
+        versions_.remove(index);
+        onChanged();
+      } else {
+        versionsBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of versions. There will be a maximum number of items returned based
+     * on the page_size field in the request. The list may in some cases be empty
+     * or contain fewer entries than page_size even if this isn't the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Version.Builder getVersionsBuilder(int index) {
+      return getVersionsFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of versions. There will be a maximum number of items returned based
+     * on the page_size field in the request. The list may in some cases be empty
+     * or contain fewer entries than page_size even if this isn't the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.VersionOrBuilder getVersionsOrBuilder(int index) {
+      if (versionsBuilder_ == null) {
+        return versions_.get(index);
+      } else {
+        return versionsBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of versions. There will be a maximum number of items returned based
+     * on the page_size field in the request. The list may in some cases be empty
+     * or contain fewer entries than page_size even if this isn't the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+     */
+    public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.VersionOrBuilder>
+        getVersionsOrBuilderList() {
+      if (versionsBuilder_ != null) {
+        return versionsBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(versions_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of versions. There will be a maximum number of items returned based
+     * on the page_size field in the request. The list may in some cases be empty
+     * or contain fewer entries than page_size even if this isn't the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Version.Builder addVersionsBuilder() {
+      return getVersionsFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.cx.v3beta1.Version.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of versions. There will be a maximum number of items returned based
+     * on the page_size field in the request. The list may in some cases be empty
+     * or contain fewer entries than page_size even if this isn't the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Version.Builder addVersionsBuilder(int index) {
+      return getVersionsFieldBuilder()
+          .addBuilder(index, com.google.cloud.dialogflow.cx.v3beta1.Version.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of versions. There will be a maximum number of items returned based
+     * on the page_size field in the request. The list may in some cases be empty
+     * or contain fewer entries than page_size even if this isn't the last page.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Version.Builder>
+        getVersionsBuilderList() {
+      return getVersionsFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Version,
+            com.google.cloud.dialogflow.cx.v3beta1.Version.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.VersionOrBuilder>
+        getVersionsFieldBuilder() {
+      if (versionsBuilder_ == null) {
+        versionsBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Version,
+                com.google.cloud.dialogflow.cx.v3beta1.Version.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.VersionOrBuilder>(
+                versions_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+        versions_ = null;
+      }
+      return versionsBuilder_;
+    }
+
+    private java.lang.Object nextPageToken_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return The nextPageToken.
+     */
+    public java.lang.String getNextPageToken() {
+      java.lang.Object ref = nextPageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        nextPageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return The bytes for nextPageToken.
+     */
+    public com.google.protobuf.ByteString getNextPageTokenBytes() {
+      java.lang.Object ref = nextPageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        nextPageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @param value The nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearNextPageToken() {
+
+      nextPageToken_ = getDefaultInstance().getNextPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @param value The bytes for nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListVersionsResponse> PARSER =
+      new com.google.protobuf.AbstractParser<ListVersionsResponse>() {
+        @java.lang.Override
+        public ListVersionsResponse parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ListVersionsResponse(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ListVersionsResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListVersionsResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListVersionsResponseOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListVersionsResponseOrBuilder.java
new file mode 100644
index 000000000..be5ea7a86
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListVersionsResponseOrBuilder.java
@@ -0,0 +1,114 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/version.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ListVersionsResponseOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ListVersionsResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * A list of versions. There will be a maximum number of items returned based
+   * on the page_size field in the request. The list may in some cases be empty
+   * or contain fewer entries than page_size even if this isn't the last page.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Version> getVersionsList();
+  /**
+   *
+   *
+   * <pre>
+   * A list of versions. There will be a maximum number of items returned based
+   * on the page_size field in the request. The list may in some cases be empty
+   * or contain fewer entries than page_size even if this isn't the last page.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Version getVersions(int index);
+  /**
+   *
+   *
+   * <pre>
+   * A list of versions. There will be a maximum number of items returned based
+   * on the page_size field in the request. The list may in some cases be empty
+   * or contain fewer entries than page_size even if this isn't the last page.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+   */
+  int getVersionsCount();
+  /**
+   *
+   *
+   * <pre>
+   * A list of versions. There will be a maximum number of items returned based
+   * on the page_size field in the request. The list may in some cases be empty
+   * or contain fewer entries than page_size even if this isn't the last page.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.VersionOrBuilder>
+      getVersionsOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * A list of versions. There will be a maximum number of items returned based
+   * on the page_size field in the request. The list may in some cases be empty
+   * or contain fewer entries than page_size even if this isn't the last page.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Version versions = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.VersionOrBuilder getVersionsOrBuilder(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The nextPageToken.
+   */
+  java.lang.String getNextPageToken();
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The bytes for nextPageToken.
+   */
+  com.google.protobuf.ByteString getNextPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListWebhooksRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListWebhooksRequest.java
new file mode 100644
index 000000000..1433052f8
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListWebhooksRequest.java
@@ -0,0 +1,931 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Webhooks.ListWebhooks][google.cloud.dialogflow.cx.v3beta1.Webhooks.ListWebhooks].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest}
+ */
+public final class ListWebhooksRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest)
+    ListWebhooksRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ListWebhooksRequest.newBuilder() to construct.
+  private ListWebhooksRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ListWebhooksRequest() {
+    parent_ = "";
+    pageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ListWebhooksRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ListWebhooksRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 16:
+            {
+              pageSize_ = input.readInt32();
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              pageToken_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListWebhooksRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListWebhooksRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to list all webhooks for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to list all webhooks for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int PAGE_SIZE_FIELD_NUMBER = 2;
+  private int pageSize_;
+  /**
+   *
+   *
+   * <pre>
+   * The maximum number of items to return in a single page. By default 100 and
+   * at most 1000.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   *
+   * @return The pageSize.
+   */
+  @java.lang.Override
+  public int getPageSize() {
+    return pageSize_;
+  }
+
+  public static final int PAGE_TOKEN_FIELD_NUMBER = 3;
+  private volatile java.lang.Object pageToken_;
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The pageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getPageToken() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      pageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The bytes for pageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getPageTokenBytes() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      pageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getParentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
+    }
+    if (pageSize_ != 0) {
+      output.writeInt32(2, pageSize_);
+    }
+    if (!getPageTokenBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, pageToken_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getParentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
+    }
+    if (pageSize_ != 0) {
+      size += com.google.protobuf.CodedOutputStream.computeInt32Size(2, pageSize_);
+    }
+    if (!getPageTokenBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, pageToken_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest) obj;
+
+    if (!getParent().equals(other.getParent())) return false;
+    if (getPageSize() != other.getPageSize()) return false;
+    if (!getPageToken().equals(other.getPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    hash = (37 * hash) + PAGE_SIZE_FIELD_NUMBER;
+    hash = (53 * hash) + getPageSize();
+    hash = (37 * hash) + PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getPageToken().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Webhooks.ListWebhooks][google.cloud.dialogflow.cx.v3beta1.Webhooks.ListWebhooks].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListWebhooksRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListWebhooksRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      pageSize_ = 0;
+
+      pageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListWebhooksRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest(this);
+      result.parent_ = parent_;
+      result.pageSize_ = pageSize_;
+      result.pageToken_ = pageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest.getDefaultInstance())
+        return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (other.getPageSize() != 0) {
+        setPageSize(other.getPageSize());
+      }
+      if (!other.getPageToken().isEmpty()) {
+        pageToken_ = other.pageToken_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to list all webhooks for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to list all webhooks for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to list all webhooks for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to list all webhooks for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to list all webhooks for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int pageSize_;
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     *
+     * @return The pageSize.
+     */
+    @java.lang.Override
+    public int getPageSize() {
+      return pageSize_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     *
+     * @param value The pageSize to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageSize(int value) {
+
+      pageSize_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageSize() {
+
+      pageSize_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object pageToken_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return The pageToken.
+     */
+    public java.lang.String getPageToken() {
+      java.lang.Object ref = pageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        pageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return The bytes for pageToken.
+     */
+    public com.google.protobuf.ByteString getPageTokenBytes() {
+      java.lang.Object ref = pageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        pageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @param value The pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageToken() {
+
+      pageToken_ = getDefaultInstance().getPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @param value The bytes for pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListWebhooksRequest> PARSER =
+      new com.google.protobuf.AbstractParser<ListWebhooksRequest>() {
+        @java.lang.Override
+        public ListWebhooksRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ListWebhooksRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ListWebhooksRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListWebhooksRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListWebhooksRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListWebhooksRequestOrBuilder.java
new file mode 100644
index 000000000..ac984082f
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListWebhooksRequestOrBuilder.java
@@ -0,0 +1,95 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ListWebhooksRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ListWebhooksRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to list all webhooks for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to list all webhooks for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The maximum number of items to return in a single page. By default 100 and
+   * at most 1000.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   *
+   * @return The pageSize.
+   */
+  int getPageSize();
+
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The pageToken.
+   */
+  java.lang.String getPageToken();
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The bytes for pageToken.
+   */
+  com.google.protobuf.ByteString getPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListWebhooksResponse.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListWebhooksResponse.java
new file mode 100644
index 000000000..cc964672d
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListWebhooksResponse.java
@@ -0,0 +1,1162 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The response message for [Webhooks.ListWebhooks][google.cloud.dialogflow.cx.v3beta1.Webhooks.ListWebhooks].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse}
+ */
+public final class ListWebhooksResponse extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse)
+    ListWebhooksResponseOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ListWebhooksResponse.newBuilder() to construct.
+  private ListWebhooksResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ListWebhooksResponse() {
+    webhooks_ = java.util.Collections.emptyList();
+    nextPageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ListWebhooksResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ListWebhooksResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                webhooks_ =
+                    new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.Webhook>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              webhooks_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Webhook.parser(), extensionRegistry));
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              nextPageToken_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        webhooks_ = java.util.Collections.unmodifiableList(webhooks_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListWebhooksResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ListWebhooksResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse.class,
+            com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse.Builder.class);
+  }
+
+  public static final int WEBHOOKS_FIELD_NUMBER = 1;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Webhook> webhooks_;
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhooks. There will be a maximum number of items returned
+   * based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Webhook> getWebhooksList() {
+    return webhooks_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhooks. There will be a maximum number of items returned
+   * based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.WebhookOrBuilder>
+      getWebhooksOrBuilderList() {
+    return webhooks_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhooks. There will be a maximum number of items returned
+   * based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+   */
+  @java.lang.Override
+  public int getWebhooksCount() {
+    return webhooks_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhooks. There will be a maximum number of items returned
+   * based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Webhook getWebhooks(int index) {
+    return webhooks_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhooks. There will be a maximum number of items returned
+   * based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.WebhookOrBuilder getWebhooksOrBuilder(int index) {
+    return webhooks_.get(index);
+  }
+
+  public static final int NEXT_PAGE_TOKEN_FIELD_NUMBER = 2;
+  private volatile java.lang.Object nextPageToken_;
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The nextPageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getNextPageToken() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      nextPageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The bytes for nextPageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNextPageTokenBytes() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      nextPageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    for (int i = 0; i < webhooks_.size(); i++) {
+      output.writeMessage(1, webhooks_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    for (int i = 0; i < webhooks_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, webhooks_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse other =
+        (com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse) obj;
+
+    if (!getWebhooksList().equals(other.getWebhooksList())) return false;
+    if (!getNextPageToken().equals(other.getNextPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (getWebhooksCount() > 0) {
+      hash = (37 * hash) + WEBHOOKS_FIELD_NUMBER;
+      hash = (53 * hash) + getWebhooksList().hashCode();
+    }
+    hash = (37 * hash) + NEXT_PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getNextPageToken().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The response message for [Webhooks.ListWebhooks][google.cloud.dialogflow.cx.v3beta1.Webhooks.ListWebhooks].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse)
+      com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListWebhooksResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListWebhooksResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getWebhooksFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (webhooksBuilder_ == null) {
+        webhooks_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        webhooksBuilder_.clear();
+      }
+      nextPageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ListWebhooksResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse(this);
+      int from_bitField0_ = bitField0_;
+      if (webhooksBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          webhooks_ = java.util.Collections.unmodifiableList(webhooks_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.webhooks_ = webhooks_;
+      } else {
+        result.webhooks_ = webhooksBuilder_.build();
+      }
+      result.nextPageToken_ = nextPageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse.getDefaultInstance())
+        return this;
+      if (webhooksBuilder_ == null) {
+        if (!other.webhooks_.isEmpty()) {
+          if (webhooks_.isEmpty()) {
+            webhooks_ = other.webhooks_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureWebhooksIsMutable();
+            webhooks_.addAll(other.webhooks_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.webhooks_.isEmpty()) {
+          if (webhooksBuilder_.isEmpty()) {
+            webhooksBuilder_.dispose();
+            webhooksBuilder_ = null;
+            webhooks_ = other.webhooks_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            webhooksBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getWebhooksFieldBuilder()
+                    : null;
+          } else {
+            webhooksBuilder_.addAllMessages(other.webhooks_);
+          }
+        }
+      }
+      if (!other.getNextPageToken().isEmpty()) {
+        nextPageToken_ = other.nextPageToken_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Webhook> webhooks_ =
+        java.util.Collections.emptyList();
+
+    private void ensureWebhooksIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        webhooks_ =
+            new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.Webhook>(webhooks_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook,
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookOrBuilder>
+        webhooksBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhooks. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Webhook> getWebhooksList() {
+      if (webhooksBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(webhooks_);
+      } else {
+        return webhooksBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhooks. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+     */
+    public int getWebhooksCount() {
+      if (webhooksBuilder_ == null) {
+        return webhooks_.size();
+      } else {
+        return webhooksBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhooks. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Webhook getWebhooks(int index) {
+      if (webhooksBuilder_ == null) {
+        return webhooks_.get(index);
+      } else {
+        return webhooksBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhooks. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+     */
+    public Builder setWebhooks(int index, com.google.cloud.dialogflow.cx.v3beta1.Webhook value) {
+      if (webhooksBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureWebhooksIsMutable();
+        webhooks_.set(index, value);
+        onChanged();
+      } else {
+        webhooksBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhooks. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+     */
+    public Builder setWebhooks(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder builderForValue) {
+      if (webhooksBuilder_ == null) {
+        ensureWebhooksIsMutable();
+        webhooks_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        webhooksBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhooks. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+     */
+    public Builder addWebhooks(com.google.cloud.dialogflow.cx.v3beta1.Webhook value) {
+      if (webhooksBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureWebhooksIsMutable();
+        webhooks_.add(value);
+        onChanged();
+      } else {
+        webhooksBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhooks. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+     */
+    public Builder addWebhooks(int index, com.google.cloud.dialogflow.cx.v3beta1.Webhook value) {
+      if (webhooksBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureWebhooksIsMutable();
+        webhooks_.add(index, value);
+        onChanged();
+      } else {
+        webhooksBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhooks. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+     */
+    public Builder addWebhooks(
+        com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder builderForValue) {
+      if (webhooksBuilder_ == null) {
+        ensureWebhooksIsMutable();
+        webhooks_.add(builderForValue.build());
+        onChanged();
+      } else {
+        webhooksBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhooks. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+     */
+    public Builder addWebhooks(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder builderForValue) {
+      if (webhooksBuilder_ == null) {
+        ensureWebhooksIsMutable();
+        webhooks_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        webhooksBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhooks. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+     */
+    public Builder addAllWebhooks(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.Webhook> values) {
+      if (webhooksBuilder_ == null) {
+        ensureWebhooksIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, webhooks_);
+        onChanged();
+      } else {
+        webhooksBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhooks. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+     */
+    public Builder clearWebhooks() {
+      if (webhooksBuilder_ == null) {
+        webhooks_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        webhooksBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhooks. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+     */
+    public Builder removeWebhooks(int index) {
+      if (webhooksBuilder_ == null) {
+        ensureWebhooksIsMutable();
+        webhooks_.remove(index);
+        onChanged();
+      } else {
+        webhooksBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhooks. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder getWebhooksBuilder(int index) {
+      return getWebhooksFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhooks. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookOrBuilder getWebhooksOrBuilder(int index) {
+      if (webhooksBuilder_ == null) {
+        return webhooks_.get(index);
+      } else {
+        return webhooksBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhooks. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+     */
+    public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.WebhookOrBuilder>
+        getWebhooksOrBuilderList() {
+      if (webhooksBuilder_ != null) {
+        return webhooksBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(webhooks_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhooks. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder addWebhooksBuilder() {
+      return getWebhooksFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.cx.v3beta1.Webhook.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhooks. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder addWebhooksBuilder(int index) {
+      return getWebhooksFieldBuilder()
+          .addBuilder(index, com.google.cloud.dialogflow.cx.v3beta1.Webhook.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhooks. There will be a maximum number of items returned
+     * based on the page_size field in the request.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder>
+        getWebhooksBuilderList() {
+      return getWebhooksFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook,
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookOrBuilder>
+        getWebhooksFieldBuilder() {
+      if (webhooksBuilder_ == null) {
+        webhooksBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Webhook,
+                com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.WebhookOrBuilder>(
+                webhooks_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+        webhooks_ = null;
+      }
+      return webhooksBuilder_;
+    }
+
+    private java.lang.Object nextPageToken_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return The nextPageToken.
+     */
+    public java.lang.String getNextPageToken() {
+      java.lang.Object ref = nextPageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        nextPageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return The bytes for nextPageToken.
+     */
+    public com.google.protobuf.ByteString getNextPageTokenBytes() {
+      java.lang.Object ref = nextPageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        nextPageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @param value The nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearNextPageToken() {
+
+      nextPageToken_ = getDefaultInstance().getNextPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @param value The bytes for nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListWebhooksResponse> PARSER =
+      new com.google.protobuf.AbstractParser<ListWebhooksResponse>() {
+        @java.lang.Override
+        public ListWebhooksResponse parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ListWebhooksResponse(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ListWebhooksResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListWebhooksResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListWebhooksResponseOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListWebhooksResponseOrBuilder.java
new file mode 100644
index 000000000..16835aeb8
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListWebhooksResponseOrBuilder.java
@@ -0,0 +1,109 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ListWebhooksResponseOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ListWebhooksResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhooks. There will be a maximum number of items returned
+   * based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Webhook> getWebhooksList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhooks. There will be a maximum number of items returned
+   * based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Webhook getWebhooks(int index);
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhooks. There will be a maximum number of items returned
+   * based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+   */
+  int getWebhooksCount();
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhooks. There will be a maximum number of items returned
+   * based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.WebhookOrBuilder>
+      getWebhooksOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhooks. There will be a maximum number of items returned
+   * based on the page_size field in the request.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Webhook webhooks = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.WebhookOrBuilder getWebhooksOrBuilder(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The nextPageToken.
+   */
+  java.lang.String getNextPageToken();
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The bytes for nextPageToken.
+   */
+  com.google.protobuf.ByteString getNextPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/LoadVersionRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/LoadVersionRequest.java
new file mode 100644
index 000000000..b8172e49a
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/LoadVersionRequest.java
@@ -0,0 +1,768 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/version.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Versions.LoadVersion][google.cloud.dialogflow.cx.v3beta1.Versions.LoadVersion].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest}
+ */
+public final class LoadVersionRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest)
+    LoadVersionRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use LoadVersionRequest.newBuilder() to construct.
+  private LoadVersionRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private LoadVersionRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new LoadVersionRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private LoadVersionRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 16:
+            {
+              allowOverrideAgentResources_ = input.readBool();
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_LoadVersionRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_LoadVersionRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The [Version][google.cloud.dialogflow.cx.v3beta1.Version] to be loaded to draft version.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The [Version][google.cloud.dialogflow.cx.v3beta1.Version] to be loaded to draft version.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int ALLOW_OVERRIDE_AGENT_RESOURCES_FIELD_NUMBER = 2;
+  private boolean allowOverrideAgentResources_;
+  /**
+   *
+   *
+   * <pre>
+   * This field is used to prevent accidental overwrite of other agent resources
+   * in the draft version, which can potentially impact other flow's behavior.
+   * If `allow_override_agent_resources` is false, conflicted agent-level
+   * resources will not be overridden (i.e. intents, entities, webhooks).
+   * </pre>
+   *
+   * <code>bool allow_override_agent_resources = 2;</code>
+   *
+   * @return The allowOverrideAgentResources.
+   */
+  @java.lang.Override
+  public boolean getAllowOverrideAgentResources() {
+    return allowOverrideAgentResources_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (allowOverrideAgentResources_ != false) {
+      output.writeBool(2, allowOverrideAgentResources_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (allowOverrideAgentResources_ != false) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeBoolSize(2, allowOverrideAgentResources_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (getAllowOverrideAgentResources() != other.getAllowOverrideAgentResources()) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + ALLOW_OVERRIDE_AGENT_RESOURCES_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getAllowOverrideAgentResources());
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Versions.LoadVersion][google.cloud.dialogflow.cx.v3beta1.Versions.LoadVersion].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_LoadVersionRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_LoadVersionRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      allowOverrideAgentResources_ = false;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_LoadVersionRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest(this);
+      result.name_ = name_;
+      result.allowOverrideAgentResources_ = allowOverrideAgentResources_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (other.getAllowOverrideAgentResources() != false) {
+        setAllowOverrideAgentResources(other.getAllowOverrideAgentResources());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Version][google.cloud.dialogflow.cx.v3beta1.Version] to be loaded to draft version.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Version][google.cloud.dialogflow.cx.v3beta1.Version] to be loaded to draft version.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Version][google.cloud.dialogflow.cx.v3beta1.Version] to be loaded to draft version.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Version][google.cloud.dialogflow.cx.v3beta1.Version] to be loaded to draft version.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The [Version][google.cloud.dialogflow.cx.v3beta1.Version] to be loaded to draft version.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private boolean allowOverrideAgentResources_;
+    /**
+     *
+     *
+     * <pre>
+     * This field is used to prevent accidental overwrite of other agent resources
+     * in the draft version, which can potentially impact other flow's behavior.
+     * If `allow_override_agent_resources` is false, conflicted agent-level
+     * resources will not be overridden (i.e. intents, entities, webhooks).
+     * </pre>
+     *
+     * <code>bool allow_override_agent_resources = 2;</code>
+     *
+     * @return The allowOverrideAgentResources.
+     */
+    @java.lang.Override
+    public boolean getAllowOverrideAgentResources() {
+      return allowOverrideAgentResources_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * This field is used to prevent accidental overwrite of other agent resources
+     * in the draft version, which can potentially impact other flow's behavior.
+     * If `allow_override_agent_resources` is false, conflicted agent-level
+     * resources will not be overridden (i.e. intents, entities, webhooks).
+     * </pre>
+     *
+     * <code>bool allow_override_agent_resources = 2;</code>
+     *
+     * @param value The allowOverrideAgentResources to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAllowOverrideAgentResources(boolean value) {
+
+      allowOverrideAgentResources_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * This field is used to prevent accidental overwrite of other agent resources
+     * in the draft version, which can potentially impact other flow's behavior.
+     * If `allow_override_agent_resources` is false, conflicted agent-level
+     * resources will not be overridden (i.e. intents, entities, webhooks).
+     * </pre>
+     *
+     * <code>bool allow_override_agent_resources = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearAllowOverrideAgentResources() {
+
+      allowOverrideAgentResources_ = false;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<LoadVersionRequest> PARSER =
+      new com.google.protobuf.AbstractParser<LoadVersionRequest>() {
+        @java.lang.Override
+        public LoadVersionRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new LoadVersionRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<LoadVersionRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<LoadVersionRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/LoadVersionRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/LoadVersionRequestOrBuilder.java
new file mode 100644
index 000000000..de3483f42
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/LoadVersionRequestOrBuilder.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/version.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface LoadVersionRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.LoadVersionRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The [Version][google.cloud.dialogflow.cx.v3beta1.Version] to be loaded to draft version.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The [Version][google.cloud.dialogflow.cx.v3beta1.Version] to be loaded to draft version.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * This field is used to prevent accidental overwrite of other agent resources
+   * in the draft version, which can potentially impact other flow's behavior.
+   * If `allow_override_agent_resources` is false, conflicted agent-level
+   * resources will not be overridden (i.e. intents, entities, webhooks).
+   * </pre>
+   *
+   * <code>bool allow_override_agent_resources = 2;</code>
+   *
+   * @return The allowOverrideAgentResources.
+   */
+  boolean getAllowOverrideAgentResources();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/LocationName.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/LocationName.java
new file mode 100644
index 000000000..7f792bb28
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/LocationName.java
@@ -0,0 +1,182 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+/** AUTO-GENERATED DOCUMENTATION AND CLASS */
+@javax.annotation.Generated("by GAPIC protoc plugin")
+public class LocationName implements ResourceName {
+
+  private static final PathTemplate PATH_TEMPLATE =
+      PathTemplate.createWithoutUrlEncoding("projects/{project}/locations/{location}");
+
+  private volatile Map<String, String> fieldValuesMap;
+
+  private final String project;
+  private final String location;
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  private LocationName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+  }
+
+  public static LocationName of(String project, String location) {
+    return newBuilder().setProject(project).setLocation(location).build();
+  }
+
+  public static String format(String project, String location) {
+    return newBuilder().setProject(project).setLocation(location).build().toString();
+  }
+
+  public static LocationName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    Map<String, String> matchMap =
+        PATH_TEMPLATE.validatedMatch(
+            formattedString, "LocationName.parse: formattedString not in valid format");
+    return of(matchMap.get("project"), matchMap.get("location"));
+  }
+
+  public static List<LocationName> parseList(List<String> formattedStrings) {
+    List<LocationName> list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List<String> toStringList(List<LocationName> values) {
+    List<String> list = new ArrayList<String>(values.size());
+    for (LocationName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PATH_TEMPLATE.matches(formattedString);
+  }
+
+  public Map<String, String> getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder<String, String> fieldMapBuilder = ImmutableMap.builder();
+          fieldMapBuilder.put("project", project);
+          fieldMapBuilder.put("location", location);
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return PATH_TEMPLATE.instantiate("project", project, "location", location);
+  }
+
+  /** Builder for LocationName. */
+  public static class Builder {
+
+    private String project;
+    private String location;
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    private Builder() {}
+
+    private Builder(LocationName locationName) {
+      project = locationName.project;
+      location = locationName.location;
+    }
+
+    public LocationName build() {
+      return new LocationName(this);
+    }
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o instanceof LocationName) {
+      LocationName that = (LocationName) o;
+      return (this.project.equals(that.project)) && (this.location.equals(that.location));
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= project.hashCode();
+    h *= 1000003;
+    h ^= location.hashCode();
+    return h;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/LookupEnvironmentHistoryRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/LookupEnvironmentHistoryRequest.java
new file mode 100644
index 000000000..5f81395b5
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/LookupEnvironmentHistoryRequest.java
@@ -0,0 +1,951 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/environment.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Environments.LookupEnvironmentHistory][google.cloud.dialogflow.cx.v3beta1.Environments.LookupEnvironmentHistory].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest}
+ */
+public final class LookupEnvironmentHistoryRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest)
+    LookupEnvironmentHistoryRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use LookupEnvironmentHistoryRequest.newBuilder() to construct.
+  private LookupEnvironmentHistoryRequest(
+      com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private LookupEnvironmentHistoryRequest() {
+    name_ = "";
+    pageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new LookupEnvironmentHistoryRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private LookupEnvironmentHistoryRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 16:
+            {
+              pageSize_ = input.readInt32();
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              pageToken_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_LookupEnvironmentHistoryRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_LookupEnvironmentHistoryRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. Resource name of the environment to look up the history for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/environments/&lt;Environment ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. Resource name of the environment to look up the history for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/environments/&lt;Environment ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int PAGE_SIZE_FIELD_NUMBER = 2;
+  private int pageSize_;
+  /**
+   *
+   *
+   * <pre>
+   * The maximum number of items to return in a single page. By default 100 and
+   * at most 1000.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   *
+   * @return The pageSize.
+   */
+  @java.lang.Override
+  public int getPageSize() {
+    return pageSize_;
+  }
+
+  public static final int PAGE_TOKEN_FIELD_NUMBER = 3;
+  private volatile java.lang.Object pageToken_;
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The pageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getPageToken() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      pageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The bytes for pageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getPageTokenBytes() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      pageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (pageSize_ != 0) {
+      output.writeInt32(2, pageSize_);
+    }
+    if (!getPageTokenBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, pageToken_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (pageSize_ != 0) {
+      size += com.google.protobuf.CodedOutputStream.computeInt32Size(2, pageSize_);
+    }
+    if (!getPageTokenBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, pageToken_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (getPageSize() != other.getPageSize()) return false;
+    if (!getPageToken().equals(other.getPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + PAGE_SIZE_FIELD_NUMBER;
+    hash = (53 * hash) + getPageSize();
+    hash = (37 * hash) + PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getPageToken().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest
+      parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest
+      parseDelimitedFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Environments.LookupEnvironmentHistory][google.cloud.dialogflow.cx.v3beta1.Environments.LookupEnvironmentHistory].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_LookupEnvironmentHistoryRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_LookupEnvironmentHistoryRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest.Builder.class);
+    }
+
+    // Construct using
+    // com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      pageSize_ = 0;
+
+      pageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_LookupEnvironmentHistoryRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest
+          .getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest result =
+          buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest(this);
+      result.name_ = name_;
+      result.pageSize_ = pageSize_;
+      result.pageToken_ = pageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest) {
+        return mergeFrom(
+            (com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest
+              .getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (other.getPageSize() != 0) {
+        setPageSize(other.getPageSize());
+      }
+      if (!other.getPageToken().isEmpty()) {
+        pageToken_ = other.pageToken_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. Resource name of the environment to look up the history for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/environments/&lt;Environment ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Resource name of the environment to look up the history for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/environments/&lt;Environment ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Resource name of the environment to look up the history for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/environments/&lt;Environment ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Resource name of the environment to look up the history for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/environments/&lt;Environment ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Resource name of the environment to look up the history for.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/environments/&lt;Environment ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int pageSize_;
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     *
+     * @return The pageSize.
+     */
+    @java.lang.Override
+    public int getPageSize() {
+      return pageSize_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     *
+     * @param value The pageSize to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageSize(int value) {
+
+      pageSize_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageSize() {
+
+      pageSize_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object pageToken_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return The pageToken.
+     */
+    public java.lang.String getPageToken() {
+      java.lang.Object ref = pageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        pageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return The bytes for pageToken.
+     */
+    public com.google.protobuf.ByteString getPageTokenBytes() {
+      java.lang.Object ref = pageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        pageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @param value The pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageToken() {
+
+      pageToken_ = getDefaultInstance().getPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The next_page_token value returned from a previous list request.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     *
+     * @param value The bytes for pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<LookupEnvironmentHistoryRequest> PARSER =
+      new com.google.protobuf.AbstractParser<LookupEnvironmentHistoryRequest>() {
+        @java.lang.Override
+        public LookupEnvironmentHistoryRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new LookupEnvironmentHistoryRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<LookupEnvironmentHistoryRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<LookupEnvironmentHistoryRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/LookupEnvironmentHistoryRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/LookupEnvironmentHistoryRequestOrBuilder.java
new file mode 100644
index 000000000..5db927745
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/LookupEnvironmentHistoryRequestOrBuilder.java
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/environment.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface LookupEnvironmentHistoryRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. Resource name of the environment to look up the history for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/environments/&lt;Environment ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. Resource name of the environment to look up the history for.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/environments/&lt;Environment ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The maximum number of items to return in a single page. By default 100 and
+   * at most 1000.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   *
+   * @return The pageSize.
+   */
+  int getPageSize();
+
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The pageToken.
+   */
+  java.lang.String getPageToken();
+  /**
+   *
+   *
+   * <pre>
+   * The next_page_token value returned from a previous list request.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   *
+   * @return The bytes for pageToken.
+   */
+  com.google.protobuf.ByteString getPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/LookupEnvironmentHistoryResponse.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/LookupEnvironmentHistoryResponse.java
new file mode 100644
index 000000000..6e7d2f58a
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/LookupEnvironmentHistoryResponse.java
@@ -0,0 +1,1188 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/environment.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The response message for [Environments.LookupEnvironmentHistory][google.cloud.dialogflow.cx.v3beta1.Environments.LookupEnvironmentHistory].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse}
+ */
+public final class LookupEnvironmentHistoryResponse extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse)
+    LookupEnvironmentHistoryResponseOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use LookupEnvironmentHistoryResponse.newBuilder() to construct.
+  private LookupEnvironmentHistoryResponse(
+      com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private LookupEnvironmentHistoryResponse() {
+    environments_ = java.util.Collections.emptyList();
+    nextPageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new LookupEnvironmentHistoryResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private LookupEnvironmentHistoryResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                environments_ =
+                    new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.Environment>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              environments_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Environment.parser(),
+                      extensionRegistry));
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              nextPageToken_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        environments_ = java.util.Collections.unmodifiableList(environments_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_LookupEnvironmentHistoryResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_LookupEnvironmentHistoryResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse.class,
+            com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse.Builder.class);
+  }
+
+  public static final int ENVIRONMENTS_FIELD_NUMBER = 1;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Environment> environments_;
+  /**
+   *
+   *
+   * <pre>
+   * Represents a list of snapshots for an environment. Time of the snapshots is
+   * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Environment> getEnvironmentsList() {
+    return environments_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents a list of snapshots for an environment. Time of the snapshots is
+   * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder>
+      getEnvironmentsOrBuilderList() {
+    return environments_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents a list of snapshots for an environment. Time of the snapshots is
+   * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+   */
+  @java.lang.Override
+  public int getEnvironmentsCount() {
+    return environments_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents a list of snapshots for an environment. Time of the snapshots is
+   * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Environment getEnvironments(int index) {
+    return environments_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents a list of snapshots for an environment. Time of the snapshots is
+   * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder getEnvironmentsOrBuilder(
+      int index) {
+    return environments_.get(index);
+  }
+
+  public static final int NEXT_PAGE_TOKEN_FIELD_NUMBER = 2;
+  private volatile java.lang.Object nextPageToken_;
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The nextPageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getNextPageToken() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      nextPageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The bytes for nextPageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNextPageTokenBytes() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      nextPageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    for (int i = 0; i < environments_.size(); i++) {
+      output.writeMessage(1, environments_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    for (int i = 0; i < environments_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, environments_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse other =
+        (com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse) obj;
+
+    if (!getEnvironmentsList().equals(other.getEnvironmentsList())) return false;
+    if (!getNextPageToken().equals(other.getNextPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (getEnvironmentsCount() > 0) {
+      hash = (37 * hash) + ENVIRONMENTS_FIELD_NUMBER;
+      hash = (53 * hash) + getEnvironmentsList().hashCode();
+    }
+    hash = (37 * hash) + NEXT_PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getNextPageToken().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse
+      parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse
+      parseDelimitedFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The response message for [Environments.LookupEnvironmentHistory][google.cloud.dialogflow.cx.v3beta1.Environments.LookupEnvironmentHistory].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse)
+      com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_LookupEnvironmentHistoryResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_LookupEnvironmentHistoryResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse.class,
+              com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse.Builder
+                  .class);
+    }
+
+    // Construct using
+    // com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getEnvironmentsFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (environmentsBuilder_ == null) {
+        environments_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        environmentsBuilder_.clear();
+      }
+      nextPageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_LookupEnvironmentHistoryResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse
+          .getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse build() {
+      com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse result =
+          buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse result =
+          new com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse(this);
+      int from_bitField0_ = bitField0_;
+      if (environmentsBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          environments_ = java.util.Collections.unmodifiableList(environments_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.environments_ = environments_;
+      } else {
+        result.environments_ = environmentsBuilder_.build();
+      }
+      result.nextPageToken_ = nextPageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other
+          instanceof com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse) {
+        return mergeFrom(
+            (com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse
+              .getDefaultInstance()) return this;
+      if (environmentsBuilder_ == null) {
+        if (!other.environments_.isEmpty()) {
+          if (environments_.isEmpty()) {
+            environments_ = other.environments_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureEnvironmentsIsMutable();
+            environments_.addAll(other.environments_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.environments_.isEmpty()) {
+          if (environmentsBuilder_.isEmpty()) {
+            environmentsBuilder_.dispose();
+            environmentsBuilder_ = null;
+            environments_ = other.environments_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            environmentsBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getEnvironmentsFieldBuilder()
+                    : null;
+          } else {
+            environmentsBuilder_.addAllMessages(other.environments_);
+          }
+        }
+      }
+      if (!other.getNextPageToken().isEmpty()) {
+        nextPageToken_ = other.nextPageToken_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Environment> environments_ =
+        java.util.Collections.emptyList();
+
+    private void ensureEnvironmentsIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        environments_ =
+            new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.Environment>(
+                environments_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Environment,
+            com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder>
+        environmentsBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * Represents a list of snapshots for an environment. Time of the snapshots is
+     * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Environment>
+        getEnvironmentsList() {
+      if (environmentsBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(environments_);
+      } else {
+        return environmentsBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents a list of snapshots for an environment. Time of the snapshots is
+     * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public int getEnvironmentsCount() {
+      if (environmentsBuilder_ == null) {
+        return environments_.size();
+      } else {
+        return environmentsBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents a list of snapshots for an environment. Time of the snapshots is
+     * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Environment getEnvironments(int index) {
+      if (environmentsBuilder_ == null) {
+        return environments_.get(index);
+      } else {
+        return environmentsBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents a list of snapshots for an environment. Time of the snapshots is
+     * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public Builder setEnvironments(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Environment value) {
+      if (environmentsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEnvironmentsIsMutable();
+        environments_.set(index, value);
+        onChanged();
+      } else {
+        environmentsBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents a list of snapshots for an environment. Time of the snapshots is
+     * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public Builder setEnvironments(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder builderForValue) {
+      if (environmentsBuilder_ == null) {
+        ensureEnvironmentsIsMutable();
+        environments_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        environmentsBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents a list of snapshots for an environment. Time of the snapshots is
+     * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public Builder addEnvironments(com.google.cloud.dialogflow.cx.v3beta1.Environment value) {
+      if (environmentsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEnvironmentsIsMutable();
+        environments_.add(value);
+        onChanged();
+      } else {
+        environmentsBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents a list of snapshots for an environment. Time of the snapshots is
+     * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public Builder addEnvironments(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Environment value) {
+      if (environmentsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEnvironmentsIsMutable();
+        environments_.add(index, value);
+        onChanged();
+      } else {
+        environmentsBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents a list of snapshots for an environment. Time of the snapshots is
+     * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public Builder addEnvironments(
+        com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder builderForValue) {
+      if (environmentsBuilder_ == null) {
+        ensureEnvironmentsIsMutable();
+        environments_.add(builderForValue.build());
+        onChanged();
+      } else {
+        environmentsBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents a list of snapshots for an environment. Time of the snapshots is
+     * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public Builder addEnvironments(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder builderForValue) {
+      if (environmentsBuilder_ == null) {
+        ensureEnvironmentsIsMutable();
+        environments_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        environmentsBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents a list of snapshots for an environment. Time of the snapshots is
+     * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public Builder addAllEnvironments(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.Environment> values) {
+      if (environmentsBuilder_ == null) {
+        ensureEnvironmentsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, environments_);
+        onChanged();
+      } else {
+        environmentsBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents a list of snapshots for an environment. Time of the snapshots is
+     * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public Builder clearEnvironments() {
+      if (environmentsBuilder_ == null) {
+        environments_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        environmentsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents a list of snapshots for an environment. Time of the snapshots is
+     * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public Builder removeEnvironments(int index) {
+      if (environmentsBuilder_ == null) {
+        ensureEnvironmentsIsMutable();
+        environments_.remove(index);
+        onChanged();
+      } else {
+        environmentsBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents a list of snapshots for an environment. Time of the snapshots is
+     * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder getEnvironmentsBuilder(
+        int index) {
+      return getEnvironmentsFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents a list of snapshots for an environment. Time of the snapshots is
+     * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder getEnvironmentsOrBuilder(
+        int index) {
+      if (environmentsBuilder_ == null) {
+        return environments_.get(index);
+      } else {
+        return environmentsBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents a list of snapshots for an environment. Time of the snapshots is
+     * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder>
+        getEnvironmentsOrBuilderList() {
+      if (environmentsBuilder_ != null) {
+        return environmentsBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(environments_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents a list of snapshots for an environment. Time of the snapshots is
+     * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder addEnvironmentsBuilder() {
+      return getEnvironmentsFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.cx.v3beta1.Environment.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents a list of snapshots for an environment. Time of the snapshots is
+     * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder addEnvironmentsBuilder(
+        int index) {
+      return getEnvironmentsFieldBuilder()
+          .addBuilder(
+              index, com.google.cloud.dialogflow.cx.v3beta1.Environment.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents a list of snapshots for an environment. Time of the snapshots is
+     * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder>
+        getEnvironmentsBuilderList() {
+      return getEnvironmentsFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Environment,
+            com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder>
+        getEnvironmentsFieldBuilder() {
+      if (environmentsBuilder_ == null) {
+        environmentsBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Environment,
+                com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder>(
+                environments_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+        environments_ = null;
+      }
+      return environmentsBuilder_;
+    }
+
+    private java.lang.Object nextPageToken_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return The nextPageToken.
+     */
+    public java.lang.String getNextPageToken() {
+      java.lang.Object ref = nextPageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        nextPageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return The bytes for nextPageToken.
+     */
+    public com.google.protobuf.ByteString getNextPageTokenBytes() {
+      java.lang.Object ref = nextPageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        nextPageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @param value The nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearNextPageToken() {
+
+      nextPageToken_ = getDefaultInstance().getNextPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Token to retrieve the next page of results, or empty if there are no more
+     * results in the list.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     *
+     * @param value The bytes for nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE =
+        new com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<LookupEnvironmentHistoryResponse> PARSER =
+      new com.google.protobuf.AbstractParser<LookupEnvironmentHistoryResponse>() {
+        @java.lang.Override
+        public LookupEnvironmentHistoryResponse parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new LookupEnvironmentHistoryResponse(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<LookupEnvironmentHistoryResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<LookupEnvironmentHistoryResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/LookupEnvironmentHistoryResponseOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/LookupEnvironmentHistoryResponseOrBuilder.java
new file mode 100644
index 000000000..af363a9ce
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/LookupEnvironmentHistoryResponseOrBuilder.java
@@ -0,0 +1,109 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/environment.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface LookupEnvironmentHistoryResponseOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.LookupEnvironmentHistoryResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Represents a list of snapshots for an environment. Time of the snapshots is
+   * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Environment> getEnvironmentsList();
+  /**
+   *
+   *
+   * <pre>
+   * Represents a list of snapshots for an environment. Time of the snapshots is
+   * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Environment getEnvironments(int index);
+  /**
+   *
+   *
+   * <pre>
+   * Represents a list of snapshots for an environment. Time of the snapshots is
+   * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+   */
+  int getEnvironmentsCount();
+  /**
+   *
+   *
+   * <pre>
+   * Represents a list of snapshots for an environment. Time of the snapshots is
+   * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder>
+      getEnvironmentsOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * Represents a list of snapshots for an environment. Time of the snapshots is
+   * stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Environment environments = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder getEnvironmentsOrBuilder(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The nextPageToken.
+   */
+  java.lang.String getNextPageToken();
+  /**
+   *
+   *
+   * <pre>
+   * Token to retrieve the next page of results, or empty if there are no more
+   * results in the list.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   *
+   * @return The bytes for nextPageToken.
+   */
+  com.google.protobuf.ByteString getNextPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Match.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Match.java
new file mode 100644
index 000000000..6b8650c66
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Match.java
@@ -0,0 +1,1854 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Represents one match result of [MatchIntent][].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Match}
+ */
+public final class Match extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.Match)
+    MatchOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use Match.newBuilder() to construct.
+  private Match(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private Match() {
+    resolvedInput_ = "";
+    matchType_ = 0;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new Match();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private Match(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder subBuilder = null;
+              if (intent_ != null) {
+                subBuilder = intent_.toBuilder();
+              }
+              intent_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Intent.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(intent_);
+                intent_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 18:
+            {
+              com.google.protobuf.Struct.Builder subBuilder = null;
+              if (parameters_ != null) {
+                subBuilder = parameters_.toBuilder();
+              }
+              parameters_ =
+                  input.readMessage(com.google.protobuf.Struct.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(parameters_);
+                parameters_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              resolvedInput_ = s;
+              break;
+            }
+          case 32:
+            {
+              int rawValue = input.readEnum();
+
+              matchType_ = rawValue;
+              break;
+            }
+          case 45:
+            {
+              confidence_ = input.readFloat();
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_Match_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_Match_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.Match.class,
+            com.google.cloud.dialogflow.cx.v3beta1.Match.Builder.class);
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Type of a Match.
+   * </pre>
+   *
+   * Protobuf enum {@code google.cloud.dialogflow.cx.v3beta1.Match.MatchType}
+   */
+  public enum MatchType implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     *
+     *
+     * <pre>
+     * Not specified. Should never be used.
+     * </pre>
+     *
+     * <code>MATCH_TYPE_UNSPECIFIED = 0;</code>
+     */
+    MATCH_TYPE_UNSPECIFIED(0),
+    /**
+     *
+     *
+     * <pre>
+     * The query was matched to an intent.
+     * </pre>
+     *
+     * <code>INTENT = 1;</code>
+     */
+    INTENT(1),
+    /**
+     *
+     *
+     * <pre>
+     * The query directly triggered an intent.
+     * </pre>
+     *
+     * <code>DIRECT_INTENT = 2;</code>
+     */
+    DIRECT_INTENT(2),
+    /**
+     *
+     *
+     * <pre>
+     * The query was used for parameter filling.
+     * </pre>
+     *
+     * <code>PARAMETER_FILLING = 3;</code>
+     */
+    PARAMETER_FILLING(3),
+    /**
+     *
+     *
+     * <pre>
+     * No match was found for the query.
+     * </pre>
+     *
+     * <code>NO_MATCH = 4;</code>
+     */
+    NO_MATCH(4),
+    /**
+     *
+     *
+     * <pre>
+     * Indicates an empty query.
+     * </pre>
+     *
+     * <code>NO_INPUT = 5;</code>
+     */
+    NO_INPUT(5),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     *
+     *
+     * <pre>
+     * Not specified. Should never be used.
+     * </pre>
+     *
+     * <code>MATCH_TYPE_UNSPECIFIED = 0;</code>
+     */
+    public static final int MATCH_TYPE_UNSPECIFIED_VALUE = 0;
+    /**
+     *
+     *
+     * <pre>
+     * The query was matched to an intent.
+     * </pre>
+     *
+     * <code>INTENT = 1;</code>
+     */
+    public static final int INTENT_VALUE = 1;
+    /**
+     *
+     *
+     * <pre>
+     * The query directly triggered an intent.
+     * </pre>
+     *
+     * <code>DIRECT_INTENT = 2;</code>
+     */
+    public static final int DIRECT_INTENT_VALUE = 2;
+    /**
+     *
+     *
+     * <pre>
+     * The query was used for parameter filling.
+     * </pre>
+     *
+     * <code>PARAMETER_FILLING = 3;</code>
+     */
+    public static final int PARAMETER_FILLING_VALUE = 3;
+    /**
+     *
+     *
+     * <pre>
+     * No match was found for the query.
+     * </pre>
+     *
+     * <code>NO_MATCH = 4;</code>
+     */
+    public static final int NO_MATCH_VALUE = 4;
+    /**
+     *
+     *
+     * <pre>
+     * Indicates an empty query.
+     * </pre>
+     *
+     * <code>NO_INPUT = 5;</code>
+     */
+    public static final int NO_INPUT_VALUE = 5;
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static MatchType valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static MatchType forNumber(int value) {
+      switch (value) {
+        case 0:
+          return MATCH_TYPE_UNSPECIFIED;
+        case 1:
+          return INTENT;
+        case 2:
+          return DIRECT_INTENT;
+        case 3:
+          return PARAMETER_FILLING;
+        case 4:
+          return NO_MATCH;
+        case 5:
+          return NO_INPUT;
+        default:
+          return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap<MatchType> internalGetValueMap() {
+      return internalValueMap;
+    }
+
+    private static final com.google.protobuf.Internal.EnumLiteMap<MatchType> internalValueMap =
+        new com.google.protobuf.Internal.EnumLiteMap<MatchType>() {
+          public MatchType findValueByNumber(int number) {
+            return MatchType.forNumber(number);
+          }
+        };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+
+    public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+      return getDescriptor();
+    }
+
+    public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.Match.getDescriptor().getEnumTypes().get(0);
+    }
+
+    private static final MatchType[] VALUES = values();
+
+    public static MatchType valueOf(com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private MatchType(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:google.cloud.dialogflow.cx.v3beta1.Match.MatchType)
+  }
+
+  public static final int INTENT_FIELD_NUMBER = 1;
+  private com.google.cloud.dialogflow.cx.v3beta1.Intent intent_;
+  /**
+   *
+   *
+   * <pre>
+   * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the query. Some, not all fields are filled in
+   * this message, including but not limited to: `name` and `display_name`. Only
+   * filled for [`INTENT`][google.cloud.dialogflow.cx.v3beta1.Match.MatchType] match type.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 1;</code>
+   *
+   * @return Whether the intent field is set.
+   */
+  @java.lang.Override
+  public boolean hasIntent() {
+    return intent_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the query. Some, not all fields are filled in
+   * this message, including but not limited to: `name` and `display_name`. Only
+   * filled for [`INTENT`][google.cloud.dialogflow.cx.v3beta1.Match.MatchType] match type.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 1;</code>
+   *
+   * @return The intent.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Intent getIntent() {
+    return intent_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.Intent.getDefaultInstance()
+        : intent_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the query. Some, not all fields are filled in
+   * this message, including but not limited to: `name` and `display_name`. Only
+   * filled for [`INTENT`][google.cloud.dialogflow.cx.v3beta1.Match.MatchType] match type.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder getIntentOrBuilder() {
+    return getIntent();
+  }
+
+  public static final int PARAMETERS_FIELD_NUMBER = 2;
+  private com.google.protobuf.Struct parameters_;
+  /**
+   *
+   *
+   * <pre>
+   * The collection of parameters extracted from the query.
+   * Depending on your protocol or client library language, this is a
+   * map, associative array, symbol table, dictionary, or JSON object
+   * composed of a collection of (MapKey, MapValue) pairs:
+   * -   MapKey type: string
+   * -   MapKey value: parameter name
+   * -   MapValue type:
+   *     -   If parameter's entity type is a composite entity: map
+   *     -   Else: string or number, depending on parameter value type
+   * -   MapValue value:
+   *     -   If parameter's entity type is a composite entity:
+   *         map from composite entity property names to property values
+   *     -   Else: parameter value
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct parameters = 2;</code>
+   *
+   * @return Whether the parameters field is set.
+   */
+  @java.lang.Override
+  public boolean hasParameters() {
+    return parameters_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The collection of parameters extracted from the query.
+   * Depending on your protocol or client library language, this is a
+   * map, associative array, symbol table, dictionary, or JSON object
+   * composed of a collection of (MapKey, MapValue) pairs:
+   * -   MapKey type: string
+   * -   MapKey value: parameter name
+   * -   MapValue type:
+   *     -   If parameter's entity type is a composite entity: map
+   *     -   Else: string or number, depending on parameter value type
+   * -   MapValue value:
+   *     -   If parameter's entity type is a composite entity:
+   *         map from composite entity property names to property values
+   *     -   Else: parameter value
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct parameters = 2;</code>
+   *
+   * @return The parameters.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Struct getParameters() {
+    return parameters_ == null ? com.google.protobuf.Struct.getDefaultInstance() : parameters_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The collection of parameters extracted from the query.
+   * Depending on your protocol or client library language, this is a
+   * map, associative array, symbol table, dictionary, or JSON object
+   * composed of a collection of (MapKey, MapValue) pairs:
+   * -   MapKey type: string
+   * -   MapKey value: parameter name
+   * -   MapValue type:
+   *     -   If parameter's entity type is a composite entity: map
+   *     -   Else: string or number, depending on parameter value type
+   * -   MapValue value:
+   *     -   If parameter's entity type is a composite entity:
+   *         map from composite entity property names to property values
+   *     -   Else: parameter value
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct parameters = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.StructOrBuilder getParametersOrBuilder() {
+    return getParameters();
+  }
+
+  public static final int RESOLVED_INPUT_FIELD_NUMBER = 3;
+  private volatile java.lang.Object resolvedInput_;
+  /**
+   *
+   *
+   * <pre>
+   * Final text input which was matched during MatchIntent. This value can be
+   * different from original input sent in request because of spelling
+   * correction or other processing.
+   * </pre>
+   *
+   * <code>string resolved_input = 3;</code>
+   *
+   * @return The resolvedInput.
+   */
+  @java.lang.Override
+  public java.lang.String getResolvedInput() {
+    java.lang.Object ref = resolvedInput_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      resolvedInput_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Final text input which was matched during MatchIntent. This value can be
+   * different from original input sent in request because of spelling
+   * correction or other processing.
+   * </pre>
+   *
+   * <code>string resolved_input = 3;</code>
+   *
+   * @return The bytes for resolvedInput.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getResolvedInputBytes() {
+    java.lang.Object ref = resolvedInput_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      resolvedInput_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int MATCH_TYPE_FIELD_NUMBER = 4;
+  private int matchType_;
+  /**
+   *
+   *
+   * <pre>
+   * Type of this [Match][google.cloud.dialogflow.cx.v3beta1.Match].
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Match.MatchType match_type = 4;</code>
+   *
+   * @return The enum numeric value on the wire for matchType.
+   */
+  @java.lang.Override
+  public int getMatchTypeValue() {
+    return matchType_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Type of this [Match][google.cloud.dialogflow.cx.v3beta1.Match].
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Match.MatchType match_type = 4;</code>
+   *
+   * @return The matchType.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Match.MatchType getMatchType() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.dialogflow.cx.v3beta1.Match.MatchType result =
+        com.google.cloud.dialogflow.cx.v3beta1.Match.MatchType.valueOf(matchType_);
+    return result == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.Match.MatchType.UNRECOGNIZED
+        : result;
+  }
+
+  public static final int CONFIDENCE_FIELD_NUMBER = 5;
+  private float confidence_;
+  /**
+   *
+   *
+   * <pre>
+   * The confidence of this match. Values range from 0.0 (completely uncertain)
+   * to 1.0 (completely certain).
+   * This value is for informational purpose only and is only used to help match
+   * the best intent within the classification threshold. This value may change
+   * for the same end-user expression at any time due to a model retraining or
+   * change in implementation.
+   * </pre>
+   *
+   * <code>float confidence = 5;</code>
+   *
+   * @return The confidence.
+   */
+  @java.lang.Override
+  public float getConfidence() {
+    return confidence_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (intent_ != null) {
+      output.writeMessage(1, getIntent());
+    }
+    if (parameters_ != null) {
+      output.writeMessage(2, getParameters());
+    }
+    if (!getResolvedInputBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, resolvedInput_);
+    }
+    if (matchType_
+        != com.google.cloud.dialogflow.cx.v3beta1.Match.MatchType.MATCH_TYPE_UNSPECIFIED
+            .getNumber()) {
+      output.writeEnum(4, matchType_);
+    }
+    if (confidence_ != 0F) {
+      output.writeFloat(5, confidence_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (intent_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getIntent());
+    }
+    if (parameters_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getParameters());
+    }
+    if (!getResolvedInputBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, resolvedInput_);
+    }
+    if (matchType_
+        != com.google.cloud.dialogflow.cx.v3beta1.Match.MatchType.MATCH_TYPE_UNSPECIFIED
+            .getNumber()) {
+      size += com.google.protobuf.CodedOutputStream.computeEnumSize(4, matchType_);
+    }
+    if (confidence_ != 0F) {
+      size += com.google.protobuf.CodedOutputStream.computeFloatSize(5, confidence_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.Match)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.Match other =
+        (com.google.cloud.dialogflow.cx.v3beta1.Match) obj;
+
+    if (hasIntent() != other.hasIntent()) return false;
+    if (hasIntent()) {
+      if (!getIntent().equals(other.getIntent())) return false;
+    }
+    if (hasParameters() != other.hasParameters()) return false;
+    if (hasParameters()) {
+      if (!getParameters().equals(other.getParameters())) return false;
+    }
+    if (!getResolvedInput().equals(other.getResolvedInput())) return false;
+    if (matchType_ != other.matchType_) return false;
+    if (java.lang.Float.floatToIntBits(getConfidence())
+        != java.lang.Float.floatToIntBits(other.getConfidence())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasIntent()) {
+      hash = (37 * hash) + INTENT_FIELD_NUMBER;
+      hash = (53 * hash) + getIntent().hashCode();
+    }
+    if (hasParameters()) {
+      hash = (37 * hash) + PARAMETERS_FIELD_NUMBER;
+      hash = (53 * hash) + getParameters().hashCode();
+    }
+    hash = (37 * hash) + RESOLVED_INPUT_FIELD_NUMBER;
+    hash = (53 * hash) + getResolvedInput().hashCode();
+    hash = (37 * hash) + MATCH_TYPE_FIELD_NUMBER;
+    hash = (53 * hash) + matchType_;
+    hash = (37 * hash) + CONFIDENCE_FIELD_NUMBER;
+    hash = (53 * hash) + java.lang.Float.floatToIntBits(getConfidence());
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Match parseFrom(java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Match parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Match parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Match parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Match parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Match parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Match parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Match parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Match parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Match parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Match parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Match parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.cx.v3beta1.Match prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents one match result of [MatchIntent][].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Match}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.Match)
+      com.google.cloud.dialogflow.cx.v3beta1.MatchOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Match_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Match_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.Match.class,
+              com.google.cloud.dialogflow.cx.v3beta1.Match.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.Match.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (intentBuilder_ == null) {
+        intent_ = null;
+      } else {
+        intent_ = null;
+        intentBuilder_ = null;
+      }
+      if (parametersBuilder_ == null) {
+        parameters_ = null;
+      } else {
+        parameters_ = null;
+        parametersBuilder_ = null;
+      }
+      resolvedInput_ = "";
+
+      matchType_ = 0;
+
+      confidence_ = 0F;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Match_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Match getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.Match.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Match build() {
+      com.google.cloud.dialogflow.cx.v3beta1.Match result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Match buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.Match result =
+          new com.google.cloud.dialogflow.cx.v3beta1.Match(this);
+      if (intentBuilder_ == null) {
+        result.intent_ = intent_;
+      } else {
+        result.intent_ = intentBuilder_.build();
+      }
+      if (parametersBuilder_ == null) {
+        result.parameters_ = parameters_;
+      } else {
+        result.parameters_ = parametersBuilder_.build();
+      }
+      result.resolvedInput_ = resolvedInput_;
+      result.matchType_ = matchType_;
+      result.confidence_ = confidence_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.Match) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.Match) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.Match other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.Match.getDefaultInstance()) return this;
+      if (other.hasIntent()) {
+        mergeIntent(other.getIntent());
+      }
+      if (other.hasParameters()) {
+        mergeParameters(other.getParameters());
+      }
+      if (!other.getResolvedInput().isEmpty()) {
+        resolvedInput_ = other.resolvedInput_;
+        onChanged();
+      }
+      if (other.matchType_ != 0) {
+        setMatchTypeValue(other.getMatchTypeValue());
+      }
+      if (other.getConfidence() != 0F) {
+        setConfidence(other.getConfidence());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.Match parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.dialogflow.cx.v3beta1.Match) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Intent intent_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Intent,
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder>
+        intentBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the query. Some, not all fields are filled in
+     * this message, including but not limited to: `name` and `display_name`. Only
+     * filled for [`INTENT`][google.cloud.dialogflow.cx.v3beta1.Match.MatchType] match type.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 1;</code>
+     *
+     * @return Whether the intent field is set.
+     */
+    public boolean hasIntent() {
+      return intentBuilder_ != null || intent_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the query. Some, not all fields are filled in
+     * this message, including but not limited to: `name` and `display_name`. Only
+     * filled for [`INTENT`][google.cloud.dialogflow.cx.v3beta1.Match.MatchType] match type.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 1;</code>
+     *
+     * @return The intent.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent getIntent() {
+      if (intentBuilder_ == null) {
+        return intent_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Intent.getDefaultInstance()
+            : intent_;
+      } else {
+        return intentBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the query. Some, not all fields are filled in
+     * this message, including but not limited to: `name` and `display_name`. Only
+     * filled for [`INTENT`][google.cloud.dialogflow.cx.v3beta1.Match.MatchType] match type.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 1;</code>
+     */
+    public Builder setIntent(com.google.cloud.dialogflow.cx.v3beta1.Intent value) {
+      if (intentBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        intent_ = value;
+        onChanged();
+      } else {
+        intentBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the query. Some, not all fields are filled in
+     * this message, including but not limited to: `name` and `display_name`. Only
+     * filled for [`INTENT`][google.cloud.dialogflow.cx.v3beta1.Match.MatchType] match type.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 1;</code>
+     */
+    public Builder setIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder builderForValue) {
+      if (intentBuilder_ == null) {
+        intent_ = builderForValue.build();
+        onChanged();
+      } else {
+        intentBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the query. Some, not all fields are filled in
+     * this message, including but not limited to: `name` and `display_name`. Only
+     * filled for [`INTENT`][google.cloud.dialogflow.cx.v3beta1.Match.MatchType] match type.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 1;</code>
+     */
+    public Builder mergeIntent(com.google.cloud.dialogflow.cx.v3beta1.Intent value) {
+      if (intentBuilder_ == null) {
+        if (intent_ != null) {
+          intent_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.newBuilder(intent_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          intent_ = value;
+        }
+        onChanged();
+      } else {
+        intentBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the query. Some, not all fields are filled in
+     * this message, including but not limited to: `name` and `display_name`. Only
+     * filled for [`INTENT`][google.cloud.dialogflow.cx.v3beta1.Match.MatchType] match type.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 1;</code>
+     */
+    public Builder clearIntent() {
+      if (intentBuilder_ == null) {
+        intent_ = null;
+        onChanged();
+      } else {
+        intent_ = null;
+        intentBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the query. Some, not all fields are filled in
+     * this message, including but not limited to: `name` and `display_name`. Only
+     * filled for [`INTENT`][google.cloud.dialogflow.cx.v3beta1.Match.MatchType] match type.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder getIntentBuilder() {
+
+      onChanged();
+      return getIntentFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the query. Some, not all fields are filled in
+     * this message, including but not limited to: `name` and `display_name`. Only
+     * filled for [`INTENT`][google.cloud.dialogflow.cx.v3beta1.Match.MatchType] match type.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder getIntentOrBuilder() {
+      if (intentBuilder_ != null) {
+        return intentBuilder_.getMessageOrBuilder();
+      } else {
+        return intent_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Intent.getDefaultInstance()
+            : intent_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the query. Some, not all fields are filled in
+     * this message, including but not limited to: `name` and `display_name`. Only
+     * filled for [`INTENT`][google.cloud.dialogflow.cx.v3beta1.Match.MatchType] match type.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 1;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Intent,
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder>
+        getIntentFieldBuilder() {
+      if (intentBuilder_ == null) {
+        intentBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Intent,
+                com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder>(
+                getIntent(), getParentForChildren(), isClean());
+        intent_ = null;
+      }
+      return intentBuilder_;
+    }
+
+    private com.google.protobuf.Struct parameters_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Struct,
+            com.google.protobuf.Struct.Builder,
+            com.google.protobuf.StructOrBuilder>
+        parametersBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters extracted from the query.
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 2;</code>
+     *
+     * @return Whether the parameters field is set.
+     */
+    public boolean hasParameters() {
+      return parametersBuilder_ != null || parameters_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters extracted from the query.
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 2;</code>
+     *
+     * @return The parameters.
+     */
+    public com.google.protobuf.Struct getParameters() {
+      if (parametersBuilder_ == null) {
+        return parameters_ == null ? com.google.protobuf.Struct.getDefaultInstance() : parameters_;
+      } else {
+        return parametersBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters extracted from the query.
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 2;</code>
+     */
+    public Builder setParameters(com.google.protobuf.Struct value) {
+      if (parametersBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        parameters_ = value;
+        onChanged();
+      } else {
+        parametersBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters extracted from the query.
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 2;</code>
+     */
+    public Builder setParameters(com.google.protobuf.Struct.Builder builderForValue) {
+      if (parametersBuilder_ == null) {
+        parameters_ = builderForValue.build();
+        onChanged();
+      } else {
+        parametersBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters extracted from the query.
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 2;</code>
+     */
+    public Builder mergeParameters(com.google.protobuf.Struct value) {
+      if (parametersBuilder_ == null) {
+        if (parameters_ != null) {
+          parameters_ =
+              com.google.protobuf.Struct.newBuilder(parameters_).mergeFrom(value).buildPartial();
+        } else {
+          parameters_ = value;
+        }
+        onChanged();
+      } else {
+        parametersBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters extracted from the query.
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 2;</code>
+     */
+    public Builder clearParameters() {
+      if (parametersBuilder_ == null) {
+        parameters_ = null;
+        onChanged();
+      } else {
+        parameters_ = null;
+        parametersBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters extracted from the query.
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 2;</code>
+     */
+    public com.google.protobuf.Struct.Builder getParametersBuilder() {
+
+      onChanged();
+      return getParametersFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters extracted from the query.
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 2;</code>
+     */
+    public com.google.protobuf.StructOrBuilder getParametersOrBuilder() {
+      if (parametersBuilder_ != null) {
+        return parametersBuilder_.getMessageOrBuilder();
+      } else {
+        return parameters_ == null ? com.google.protobuf.Struct.getDefaultInstance() : parameters_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collection of parameters extracted from the query.
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 2;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Struct,
+            com.google.protobuf.Struct.Builder,
+            com.google.protobuf.StructOrBuilder>
+        getParametersFieldBuilder() {
+      if (parametersBuilder_ == null) {
+        parametersBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.Struct,
+                com.google.protobuf.Struct.Builder,
+                com.google.protobuf.StructOrBuilder>(
+                getParameters(), getParentForChildren(), isClean());
+        parameters_ = null;
+      }
+      return parametersBuilder_;
+    }
+
+    private java.lang.Object resolvedInput_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Final text input which was matched during MatchIntent. This value can be
+     * different from original input sent in request because of spelling
+     * correction or other processing.
+     * </pre>
+     *
+     * <code>string resolved_input = 3;</code>
+     *
+     * @return The resolvedInput.
+     */
+    public java.lang.String getResolvedInput() {
+      java.lang.Object ref = resolvedInput_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        resolvedInput_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Final text input which was matched during MatchIntent. This value can be
+     * different from original input sent in request because of spelling
+     * correction or other processing.
+     * </pre>
+     *
+     * <code>string resolved_input = 3;</code>
+     *
+     * @return The bytes for resolvedInput.
+     */
+    public com.google.protobuf.ByteString getResolvedInputBytes() {
+      java.lang.Object ref = resolvedInput_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        resolvedInput_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Final text input which was matched during MatchIntent. This value can be
+     * different from original input sent in request because of spelling
+     * correction or other processing.
+     * </pre>
+     *
+     * <code>string resolved_input = 3;</code>
+     *
+     * @param value The resolvedInput to set.
+     * @return This builder for chaining.
+     */
+    public Builder setResolvedInput(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      resolvedInput_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Final text input which was matched during MatchIntent. This value can be
+     * different from original input sent in request because of spelling
+     * correction or other processing.
+     * </pre>
+     *
+     * <code>string resolved_input = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearResolvedInput() {
+
+      resolvedInput_ = getDefaultInstance().getResolvedInput();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Final text input which was matched during MatchIntent. This value can be
+     * different from original input sent in request because of spelling
+     * correction or other processing.
+     * </pre>
+     *
+     * <code>string resolved_input = 3;</code>
+     *
+     * @param value The bytes for resolvedInput to set.
+     * @return This builder for chaining.
+     */
+    public Builder setResolvedInputBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      resolvedInput_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int matchType_ = 0;
+    /**
+     *
+     *
+     * <pre>
+     * Type of this [Match][google.cloud.dialogflow.cx.v3beta1.Match].
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match.MatchType match_type = 4;</code>
+     *
+     * @return The enum numeric value on the wire for matchType.
+     */
+    @java.lang.Override
+    public int getMatchTypeValue() {
+      return matchType_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Type of this [Match][google.cloud.dialogflow.cx.v3beta1.Match].
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match.MatchType match_type = 4;</code>
+     *
+     * @param value The enum numeric value on the wire for matchType to set.
+     * @return This builder for chaining.
+     */
+    public Builder setMatchTypeValue(int value) {
+
+      matchType_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Type of this [Match][google.cloud.dialogflow.cx.v3beta1.Match].
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match.MatchType match_type = 4;</code>
+     *
+     * @return The matchType.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Match.MatchType getMatchType() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.dialogflow.cx.v3beta1.Match.MatchType result =
+          com.google.cloud.dialogflow.cx.v3beta1.Match.MatchType.valueOf(matchType_);
+      return result == null
+          ? com.google.cloud.dialogflow.cx.v3beta1.Match.MatchType.UNRECOGNIZED
+          : result;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Type of this [Match][google.cloud.dialogflow.cx.v3beta1.Match].
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match.MatchType match_type = 4;</code>
+     *
+     * @param value The matchType to set.
+     * @return This builder for chaining.
+     */
+    public Builder setMatchType(com.google.cloud.dialogflow.cx.v3beta1.Match.MatchType value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      matchType_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Type of this [Match][google.cloud.dialogflow.cx.v3beta1.Match].
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match.MatchType match_type = 4;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearMatchType() {
+
+      matchType_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private float confidence_;
+    /**
+     *
+     *
+     * <pre>
+     * The confidence of this match. Values range from 0.0 (completely uncertain)
+     * to 1.0 (completely certain).
+     * This value is for informational purpose only and is only used to help match
+     * the best intent within the classification threshold. This value may change
+     * for the same end-user expression at any time due to a model retraining or
+     * change in implementation.
+     * </pre>
+     *
+     * <code>float confidence = 5;</code>
+     *
+     * @return The confidence.
+     */
+    @java.lang.Override
+    public float getConfidence() {
+      return confidence_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The confidence of this match. Values range from 0.0 (completely uncertain)
+     * to 1.0 (completely certain).
+     * This value is for informational purpose only and is only used to help match
+     * the best intent within the classification threshold. This value may change
+     * for the same end-user expression at any time due to a model retraining or
+     * change in implementation.
+     * </pre>
+     *
+     * <code>float confidence = 5;</code>
+     *
+     * @param value The confidence to set.
+     * @return This builder for chaining.
+     */
+    public Builder setConfidence(float value) {
+
+      confidence_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The confidence of this match. Values range from 0.0 (completely uncertain)
+     * to 1.0 (completely certain).
+     * This value is for informational purpose only and is only used to help match
+     * the best intent within the classification threshold. This value may change
+     * for the same end-user expression at any time due to a model retraining or
+     * change in implementation.
+     * </pre>
+     *
+     * <code>float confidence = 5;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearConfidence() {
+
+      confidence_ = 0F;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.Match)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.Match)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.Match DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.Match();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Match getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<Match> PARSER =
+      new com.google.protobuf.AbstractParser<Match>() {
+        @java.lang.Override
+        public Match parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new Match(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<Match> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<Match> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Match getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/MatchIntentRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/MatchIntentRequest.java
new file mode 100644
index 000000000..875251914
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/MatchIntentRequest.java
@@ -0,0 +1,1269 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Request of [MatchIntent][].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest}
+ */
+public final class MatchIntentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest)
+    MatchIntentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use MatchIntentRequest.newBuilder() to construct.
+  private MatchIntentRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private MatchIntentRequest() {
+    session_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new MatchIntentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private MatchIntentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              session_ = s;
+              break;
+            }
+          case 18:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.Builder subBuilder = null;
+              if (queryParams_ != null) {
+                subBuilder = queryParams_.toBuilder();
+              }
+              queryParams_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(queryParams_);
+                queryParams_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 26:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.QueryInput.Builder subBuilder = null;
+              if (queryInput_ != null) {
+                subBuilder = queryInput_.toBuilder();
+              }
+              queryInput_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.QueryInput.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(queryInput_);
+                queryInput_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_MatchIntentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_MatchIntentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest.Builder.class);
+  }
+
+  public static final int SESSION_FIELD_NUMBER = 1;
+  private volatile java.lang.Object session_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the session this query is sent to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * It's up to the API caller to choose an appropriate `Session ID`. It can be
+   * a random number or some type of session identifiers (preferably hashed).
+   * The length of the `Session ID` must not exceed 36 characters.
+   * </pre>
+   *
+   * <code>
+   * string session = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The session.
+   */
+  @java.lang.Override
+  public java.lang.String getSession() {
+    java.lang.Object ref = session_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      session_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the session this query is sent to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * It's up to the API caller to choose an appropriate `Session ID`. It can be
+   * a random number or some type of session identifiers (preferably hashed).
+   * The length of the `Session ID` must not exceed 36 characters.
+   * </pre>
+   *
+   * <code>
+   * string session = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for session.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getSessionBytes() {
+    java.lang.Object ref = session_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      session_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int QUERY_PARAMS_FIELD_NUMBER = 2;
+  private com.google.cloud.dialogflow.cx.v3beta1.QueryParameters queryParams_;
+  /**
+   *
+   *
+   * <pre>
+   * The parameters of this query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+   *
+   * @return Whether the queryParams field is set.
+   */
+  @java.lang.Override
+  public boolean hasQueryParams() {
+    return queryParams_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The parameters of this query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+   *
+   * @return The queryParams.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.QueryParameters getQueryParams() {
+    return queryParams_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.getDefaultInstance()
+        : queryParams_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The parameters of this query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.QueryParametersOrBuilder getQueryParamsOrBuilder() {
+    return getQueryParams();
+  }
+
+  public static final int QUERY_INPUT_FIELD_NUMBER = 3;
+  private com.google.cloud.dialogflow.cx.v3beta1.QueryInput queryInput_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The input specification.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the queryInput field is set.
+   */
+  @java.lang.Override
+  public boolean hasQueryInput() {
+    return queryInput_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The input specification.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The queryInput.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.QueryInput getQueryInput() {
+    return queryInput_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.QueryInput.getDefaultInstance()
+        : queryInput_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The input specification.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.QueryInputOrBuilder getQueryInputOrBuilder() {
+    return getQueryInput();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getSessionBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, session_);
+    }
+    if (queryParams_ != null) {
+      output.writeMessage(2, getQueryParams());
+    }
+    if (queryInput_ != null) {
+      output.writeMessage(3, getQueryInput());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getSessionBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, session_);
+    }
+    if (queryParams_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getQueryParams());
+    }
+    if (queryInput_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getQueryInput());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest) obj;
+
+    if (!getSession().equals(other.getSession())) return false;
+    if (hasQueryParams() != other.hasQueryParams()) return false;
+    if (hasQueryParams()) {
+      if (!getQueryParams().equals(other.getQueryParams())) return false;
+    }
+    if (hasQueryInput() != other.hasQueryInput()) return false;
+    if (hasQueryInput()) {
+      if (!getQueryInput().equals(other.getQueryInput())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + SESSION_FIELD_NUMBER;
+    hash = (53 * hash) + getSession().hashCode();
+    if (hasQueryParams()) {
+      hash = (37 * hash) + QUERY_PARAMS_FIELD_NUMBER;
+      hash = (53 * hash) + getQueryParams().hashCode();
+    }
+    if (hasQueryInput()) {
+      hash = (37 * hash) + QUERY_INPUT_FIELD_NUMBER;
+      hash = (53 * hash) + getQueryInput().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Request of [MatchIntent][].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_MatchIntentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_MatchIntentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      session_ = "";
+
+      if (queryParamsBuilder_ == null) {
+        queryParams_ = null;
+      } else {
+        queryParams_ = null;
+        queryParamsBuilder_ = null;
+      }
+      if (queryInputBuilder_ == null) {
+        queryInput_ = null;
+      } else {
+        queryInput_ = null;
+        queryInputBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_MatchIntentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest(this);
+      result.session_ = session_;
+      if (queryParamsBuilder_ == null) {
+        result.queryParams_ = queryParams_;
+      } else {
+        result.queryParams_ = queryParamsBuilder_.build();
+      }
+      if (queryInputBuilder_ == null) {
+        result.queryInput_ = queryInput_;
+      } else {
+        result.queryInput_ = queryInputBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest.getDefaultInstance())
+        return this;
+      if (!other.getSession().isEmpty()) {
+        session_ = other.session_;
+        onChanged();
+      }
+      if (other.hasQueryParams()) {
+        mergeQueryParams(other.getQueryParams());
+      }
+      if (other.hasQueryInput()) {
+        mergeQueryInput(other.getQueryInput());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object session_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the session this query is sent to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * It's up to the API caller to choose an appropriate `Session ID`. It can be
+     * a random number or some type of session identifiers (preferably hashed).
+     * The length of the `Session ID` must not exceed 36 characters.
+     * </pre>
+     *
+     * <code>
+     * string session = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The session.
+     */
+    public java.lang.String getSession() {
+      java.lang.Object ref = session_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        session_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the session this query is sent to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * It's up to the API caller to choose an appropriate `Session ID`. It can be
+     * a random number or some type of session identifiers (preferably hashed).
+     * The length of the `Session ID` must not exceed 36 characters.
+     * </pre>
+     *
+     * <code>
+     * string session = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for session.
+     */
+    public com.google.protobuf.ByteString getSessionBytes() {
+      java.lang.Object ref = session_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        session_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the session this query is sent to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * It's up to the API caller to choose an appropriate `Session ID`. It can be
+     * a random number or some type of session identifiers (preferably hashed).
+     * The length of the `Session ID` must not exceed 36 characters.
+     * </pre>
+     *
+     * <code>
+     * string session = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The session to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSession(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      session_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the session this query is sent to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * It's up to the API caller to choose an appropriate `Session ID`. It can be
+     * a random number or some type of session identifiers (preferably hashed).
+     * The length of the `Session ID` must not exceed 36 characters.
+     * </pre>
+     *
+     * <code>
+     * string session = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearSession() {
+
+      session_ = getDefaultInstance().getSession();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the session this query is sent to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * It's up to the API caller to choose an appropriate `Session ID`. It can be
+     * a random number or some type of session identifiers (preferably hashed).
+     * The length of the `Session ID` must not exceed 36 characters.
+     * </pre>
+     *
+     * <code>
+     * string session = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for session to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSessionBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      session_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.QueryParameters queryParams_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.QueryParameters,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryParametersOrBuilder>
+        queryParamsBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     *
+     * @return Whether the queryParams field is set.
+     */
+    public boolean hasQueryParams() {
+      return queryParamsBuilder_ != null || queryParams_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     *
+     * @return The queryParams.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryParameters getQueryParams() {
+      if (queryParamsBuilder_ == null) {
+        return queryParams_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.getDefaultInstance()
+            : queryParams_;
+      } else {
+        return queryParamsBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     */
+    public Builder setQueryParams(com.google.cloud.dialogflow.cx.v3beta1.QueryParameters value) {
+      if (queryParamsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        queryParams_ = value;
+        onChanged();
+      } else {
+        queryParamsBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     */
+    public Builder setQueryParams(
+        com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.Builder builderForValue) {
+      if (queryParamsBuilder_ == null) {
+        queryParams_ = builderForValue.build();
+        onChanged();
+      } else {
+        queryParamsBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     */
+    public Builder mergeQueryParams(com.google.cloud.dialogflow.cx.v3beta1.QueryParameters value) {
+      if (queryParamsBuilder_ == null) {
+        if (queryParams_ != null) {
+          queryParams_ =
+              com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.newBuilder(queryParams_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          queryParams_ = value;
+        }
+        onChanged();
+      } else {
+        queryParamsBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     */
+    public Builder clearQueryParams() {
+      if (queryParamsBuilder_ == null) {
+        queryParams_ = null;
+        onChanged();
+      } else {
+        queryParams_ = null;
+        queryParamsBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.Builder getQueryParamsBuilder() {
+
+      onChanged();
+      return getQueryParamsFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryParametersOrBuilder
+        getQueryParamsOrBuilder() {
+      if (queryParamsBuilder_ != null) {
+        return queryParamsBuilder_.getMessageOrBuilder();
+      } else {
+        return queryParams_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.getDefaultInstance()
+            : queryParams_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.QueryParameters,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryParametersOrBuilder>
+        getQueryParamsFieldBuilder() {
+      if (queryParamsBuilder_ == null) {
+        queryParamsBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.QueryParameters,
+                com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.QueryParametersOrBuilder>(
+                getQueryParams(), getParentForChildren(), isClean());
+        queryParams_ = null;
+      }
+      return queryParamsBuilder_;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.QueryInput queryInput_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.QueryInput,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryInput.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryInputOrBuilder>
+        queryInputBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the queryInput field is set.
+     */
+    public boolean hasQueryInput() {
+      return queryInputBuilder_ != null || queryInput_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The queryInput.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryInput getQueryInput() {
+      if (queryInputBuilder_ == null) {
+        return queryInput_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.QueryInput.getDefaultInstance()
+            : queryInput_;
+      } else {
+        return queryInputBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setQueryInput(com.google.cloud.dialogflow.cx.v3beta1.QueryInput value) {
+      if (queryInputBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        queryInput_ = value;
+        onChanged();
+      } else {
+        queryInputBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setQueryInput(
+        com.google.cloud.dialogflow.cx.v3beta1.QueryInput.Builder builderForValue) {
+      if (queryInputBuilder_ == null) {
+        queryInput_ = builderForValue.build();
+        onChanged();
+      } else {
+        queryInputBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeQueryInput(com.google.cloud.dialogflow.cx.v3beta1.QueryInput value) {
+      if (queryInputBuilder_ == null) {
+        if (queryInput_ != null) {
+          queryInput_ =
+              com.google.cloud.dialogflow.cx.v3beta1.QueryInput.newBuilder(queryInput_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          queryInput_ = value;
+        }
+        onChanged();
+      } else {
+        queryInputBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearQueryInput() {
+      if (queryInputBuilder_ == null) {
+        queryInput_ = null;
+        onChanged();
+      } else {
+        queryInput_ = null;
+        queryInputBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryInput.Builder getQueryInputBuilder() {
+
+      onChanged();
+      return getQueryInputFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryInputOrBuilder getQueryInputOrBuilder() {
+      if (queryInputBuilder_ != null) {
+        return queryInputBuilder_.getMessageOrBuilder();
+      } else {
+        return queryInput_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.QueryInput.getDefaultInstance()
+            : queryInput_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.QueryInput,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryInput.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryInputOrBuilder>
+        getQueryInputFieldBuilder() {
+      if (queryInputBuilder_ == null) {
+        queryInputBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.QueryInput,
+                com.google.cloud.dialogflow.cx.v3beta1.QueryInput.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.QueryInputOrBuilder>(
+                getQueryInput(), getParentForChildren(), isClean());
+        queryInput_ = null;
+      }
+      return queryInputBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<MatchIntentRequest> PARSER =
+      new com.google.protobuf.AbstractParser<MatchIntentRequest>() {
+        @java.lang.Override
+        public MatchIntentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new MatchIntentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<MatchIntentRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<MatchIntentRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/MatchIntentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/MatchIntentRequestOrBuilder.java
new file mode 100644
index 000000000..9b4872bfc
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/MatchIntentRequestOrBuilder.java
@@ -0,0 +1,140 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface MatchIntentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.MatchIntentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the session this query is sent to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * It's up to the API caller to choose an appropriate `Session ID`. It can be
+   * a random number or some type of session identifiers (preferably hashed).
+   * The length of the `Session ID` must not exceed 36 characters.
+   * </pre>
+   *
+   * <code>
+   * string session = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The session.
+   */
+  java.lang.String getSession();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the session this query is sent to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * It's up to the API caller to choose an appropriate `Session ID`. It can be
+   * a random number or some type of session identifiers (preferably hashed).
+   * The length of the `Session ID` must not exceed 36 characters.
+   * </pre>
+   *
+   * <code>
+   * string session = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for session.
+   */
+  com.google.protobuf.ByteString getSessionBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The parameters of this query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+   *
+   * @return Whether the queryParams field is set.
+   */
+  boolean hasQueryParams();
+  /**
+   *
+   *
+   * <pre>
+   * The parameters of this query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+   *
+   * @return The queryParams.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.QueryParameters getQueryParams();
+  /**
+   *
+   *
+   * <pre>
+   * The parameters of this query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.QueryParametersOrBuilder getQueryParamsOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The input specification.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the queryInput field is set.
+   */
+  boolean hasQueryInput();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The input specification.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The queryInput.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.QueryInput getQueryInput();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The input specification.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.QueryInputOrBuilder getQueryInputOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/MatchIntentResponse.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/MatchIntentResponse.java
new file mode 100644
index 000000000..02a3f205c
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/MatchIntentResponse.java
@@ -0,0 +1,1982 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Response of [MatchIntent][].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse}
+ */
+public final class MatchIntentResponse extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse)
+    MatchIntentResponseOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use MatchIntentResponse.newBuilder() to construct.
+  private MatchIntentResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private MatchIntentResponse() {
+    matches_ = java.util.Collections.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new MatchIntentResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private MatchIntentResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+              queryCase_ = 1;
+              query_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+              queryCase_ = 2;
+              query_ = s;
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+              queryCase_ = 3;
+              query_ = s;
+              break;
+            }
+          case 34:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                matches_ = new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.Match>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              matches_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Match.parser(), extensionRegistry));
+              break;
+            }
+          case 42:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Page.Builder subBuilder = null;
+              if (currentPage_ != null) {
+                subBuilder = currentPage_.toBuilder();
+              }
+              currentPage_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Page.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(currentPage_);
+                currentPage_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        matches_ = java.util.Collections.unmodifiableList(matches_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_MatchIntentResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_MatchIntentResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse.class,
+            com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse.Builder.class);
+  }
+
+  private int queryCase_ = 0;
+  private java.lang.Object query_;
+
+  public enum QueryCase
+      implements
+          com.google.protobuf.Internal.EnumLite,
+          com.google.protobuf.AbstractMessage.InternalOneOfEnum {
+    TEXT(1),
+    TRIGGER_INTENT(2),
+    TRANSCRIPT(3),
+    QUERY_NOT_SET(0);
+    private final int value;
+
+    private QueryCase(int value) {
+      this.value = value;
+    }
+    /**
+     * @param value The number of the enum to look for.
+     * @return The enum associated with the given number.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static QueryCase valueOf(int value) {
+      return forNumber(value);
+    }
+
+    public static QueryCase forNumber(int value) {
+      switch (value) {
+        case 1:
+          return TEXT;
+        case 2:
+          return TRIGGER_INTENT;
+        case 3:
+          return TRANSCRIPT;
+        case 0:
+          return QUERY_NOT_SET;
+        default:
+          return null;
+      }
+    }
+
+    public int getNumber() {
+      return this.value;
+    }
+  };
+
+  public QueryCase getQueryCase() {
+    return QueryCase.forNumber(queryCase_);
+  }
+
+  public static final int TEXT_FIELD_NUMBER = 1;
+  /**
+   *
+   *
+   * <pre>
+   * If [natural language text][google.cloud.dialogflow.cx.v3beta1.TextInput] was provided as input, this field
+   * will contain a copy of the text.
+   * </pre>
+   *
+   * <code>string text = 1;</code>
+   *
+   * @return The text.
+   */
+  public java.lang.String getText() {
+    java.lang.Object ref = "";
+    if (queryCase_ == 1) {
+      ref = query_;
+    }
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      if (queryCase_ == 1) {
+        query_ = s;
+      }
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * If [natural language text][google.cloud.dialogflow.cx.v3beta1.TextInput] was provided as input, this field
+   * will contain a copy of the text.
+   * </pre>
+   *
+   * <code>string text = 1;</code>
+   *
+   * @return The bytes for text.
+   */
+  public com.google.protobuf.ByteString getTextBytes() {
+    java.lang.Object ref = "";
+    if (queryCase_ == 1) {
+      ref = query_;
+    }
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      if (queryCase_ == 1) {
+        query_ = b;
+      }
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int TRIGGER_INTENT_FIELD_NUMBER = 2;
+  /**
+   *
+   *
+   * <pre>
+   * If an [intent][google.cloud.dialogflow.cx.v3beta1.IntentInput] was provided as input, this field will
+   * contain a copy of the intent identifier.
+   * </pre>
+   *
+   * <code>string trigger_intent = 2;</code>
+   *
+   * @return The triggerIntent.
+   */
+  public java.lang.String getTriggerIntent() {
+    java.lang.Object ref = "";
+    if (queryCase_ == 2) {
+      ref = query_;
+    }
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      if (queryCase_ == 2) {
+        query_ = s;
+      }
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * If an [intent][google.cloud.dialogflow.cx.v3beta1.IntentInput] was provided as input, this field will
+   * contain a copy of the intent identifier.
+   * </pre>
+   *
+   * <code>string trigger_intent = 2;</code>
+   *
+   * @return The bytes for triggerIntent.
+   */
+  public com.google.protobuf.ByteString getTriggerIntentBytes() {
+    java.lang.Object ref = "";
+    if (queryCase_ == 2) {
+      ref = query_;
+    }
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      if (queryCase_ == 2) {
+        query_ = b;
+      }
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int TRANSCRIPT_FIELD_NUMBER = 3;
+  /**
+   *
+   *
+   * <pre>
+   * If [natural language speech audio][google.cloud.dialogflow.cx.v3beta1.AudioInput] was provided as input,
+   * this field will contain the trascript for the audio.
+   * </pre>
+   *
+   * <code>string transcript = 3;</code>
+   *
+   * @return The transcript.
+   */
+  public java.lang.String getTranscript() {
+    java.lang.Object ref = "";
+    if (queryCase_ == 3) {
+      ref = query_;
+    }
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      if (queryCase_ == 3) {
+        query_ = s;
+      }
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * If [natural language speech audio][google.cloud.dialogflow.cx.v3beta1.AudioInput] was provided as input,
+   * this field will contain the trascript for the audio.
+   * </pre>
+   *
+   * <code>string transcript = 3;</code>
+   *
+   * @return The bytes for transcript.
+   */
+  public com.google.protobuf.ByteString getTranscriptBytes() {
+    java.lang.Object ref = "";
+    if (queryCase_ == 3) {
+      ref = query_;
+    }
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      if (queryCase_ == 3) {
+        query_ = b;
+      }
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int MATCHES_FIELD_NUMBER = 4;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Match> matches_;
+  /**
+   *
+   *
+   * <pre>
+   * Match results, if more than one, ordered descendingly by the confidence
+   * we have that the particular intent matches the query.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Match> getMatchesList() {
+    return matches_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Match results, if more than one, ordered descendingly by the confidence
+   * we have that the particular intent matches the query.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.MatchOrBuilder>
+      getMatchesOrBuilderList() {
+    return matches_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Match results, if more than one, ordered descendingly by the confidence
+   * we have that the particular intent matches the query.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+   */
+  @java.lang.Override
+  public int getMatchesCount() {
+    return matches_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Match results, if more than one, ordered descendingly by the confidence
+   * we have that the particular intent matches the query.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Match getMatches(int index) {
+    return matches_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Match results, if more than one, ordered descendingly by the confidence
+   * we have that the particular intent matches the query.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.MatchOrBuilder getMatchesOrBuilder(int index) {
+    return matches_.get(index);
+  }
+
+  public static final int CURRENT_PAGE_FIELD_NUMBER = 5;
+  private com.google.cloud.dialogflow.cx.v3beta1.Page currentPage_;
+  /**
+   *
+   *
+   * <pre>
+   * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+   * including but not limited to `name` and `display_name`.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 5;</code>
+   *
+   * @return Whether the currentPage field is set.
+   */
+  @java.lang.Override
+  public boolean hasCurrentPage() {
+    return currentPage_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+   * including but not limited to `name` and `display_name`.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 5;</code>
+   *
+   * @return The currentPage.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Page getCurrentPage() {
+    return currentPage_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.Page.getDefaultInstance()
+        : currentPage_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+   * including but not limited to `name` and `display_name`.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 5;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder getCurrentPageOrBuilder() {
+    return getCurrentPage();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (queryCase_ == 1) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, query_);
+    }
+    if (queryCase_ == 2) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, query_);
+    }
+    if (queryCase_ == 3) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, query_);
+    }
+    for (int i = 0; i < matches_.size(); i++) {
+      output.writeMessage(4, matches_.get(i));
+    }
+    if (currentPage_ != null) {
+      output.writeMessage(5, getCurrentPage());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (queryCase_ == 1) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, query_);
+    }
+    if (queryCase_ == 2) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, query_);
+    }
+    if (queryCase_ == 3) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, query_);
+    }
+    for (int i = 0; i < matches_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, matches_.get(i));
+    }
+    if (currentPage_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, getCurrentPage());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse other =
+        (com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse) obj;
+
+    if (!getMatchesList().equals(other.getMatchesList())) return false;
+    if (hasCurrentPage() != other.hasCurrentPage()) return false;
+    if (hasCurrentPage()) {
+      if (!getCurrentPage().equals(other.getCurrentPage())) return false;
+    }
+    if (!getQueryCase().equals(other.getQueryCase())) return false;
+    switch (queryCase_) {
+      case 1:
+        if (!getText().equals(other.getText())) return false;
+        break;
+      case 2:
+        if (!getTriggerIntent().equals(other.getTriggerIntent())) return false;
+        break;
+      case 3:
+        if (!getTranscript().equals(other.getTranscript())) return false;
+        break;
+      case 0:
+      default:
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (getMatchesCount() > 0) {
+      hash = (37 * hash) + MATCHES_FIELD_NUMBER;
+      hash = (53 * hash) + getMatchesList().hashCode();
+    }
+    if (hasCurrentPage()) {
+      hash = (37 * hash) + CURRENT_PAGE_FIELD_NUMBER;
+      hash = (53 * hash) + getCurrentPage().hashCode();
+    }
+    switch (queryCase_) {
+      case 1:
+        hash = (37 * hash) + TEXT_FIELD_NUMBER;
+        hash = (53 * hash) + getText().hashCode();
+        break;
+      case 2:
+        hash = (37 * hash) + TRIGGER_INTENT_FIELD_NUMBER;
+        hash = (53 * hash) + getTriggerIntent().hashCode();
+        break;
+      case 3:
+        hash = (37 * hash) + TRANSCRIPT_FIELD_NUMBER;
+        hash = (53 * hash) + getTranscript().hashCode();
+        break;
+      case 0:
+      default:
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Response of [MatchIntent][].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse)
+      com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_MatchIntentResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_MatchIntentResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse.class,
+              com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getMatchesFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (matchesBuilder_ == null) {
+        matches_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        matchesBuilder_.clear();
+      }
+      if (currentPageBuilder_ == null) {
+        currentPage_ = null;
+      } else {
+        currentPage_ = null;
+        currentPageBuilder_ = null;
+      }
+      queryCase_ = 0;
+      query_ = null;
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_MatchIntentResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse build() {
+      com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse result =
+          new com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse(this);
+      int from_bitField0_ = bitField0_;
+      if (queryCase_ == 1) {
+        result.query_ = query_;
+      }
+      if (queryCase_ == 2) {
+        result.query_ = query_;
+      }
+      if (queryCase_ == 3) {
+        result.query_ = query_;
+      }
+      if (matchesBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          matches_ = java.util.Collections.unmodifiableList(matches_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.matches_ = matches_;
+      } else {
+        result.matches_ = matchesBuilder_.build();
+      }
+      if (currentPageBuilder_ == null) {
+        result.currentPage_ = currentPage_;
+      } else {
+        result.currentPage_ = currentPageBuilder_.build();
+      }
+      result.queryCase_ = queryCase_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse.getDefaultInstance())
+        return this;
+      if (matchesBuilder_ == null) {
+        if (!other.matches_.isEmpty()) {
+          if (matches_.isEmpty()) {
+            matches_ = other.matches_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureMatchesIsMutable();
+            matches_.addAll(other.matches_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.matches_.isEmpty()) {
+          if (matchesBuilder_.isEmpty()) {
+            matchesBuilder_.dispose();
+            matchesBuilder_ = null;
+            matches_ = other.matches_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            matchesBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getMatchesFieldBuilder()
+                    : null;
+          } else {
+            matchesBuilder_.addAllMessages(other.matches_);
+          }
+        }
+      }
+      if (other.hasCurrentPage()) {
+        mergeCurrentPage(other.getCurrentPage());
+      }
+      switch (other.getQueryCase()) {
+        case TEXT:
+          {
+            queryCase_ = 1;
+            query_ = other.query_;
+            onChanged();
+            break;
+          }
+        case TRIGGER_INTENT:
+          {
+            queryCase_ = 2;
+            query_ = other.query_;
+            onChanged();
+            break;
+          }
+        case TRANSCRIPT:
+          {
+            queryCase_ = 3;
+            query_ = other.query_;
+            onChanged();
+            break;
+          }
+        case QUERY_NOT_SET:
+          {
+            break;
+          }
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int queryCase_ = 0;
+    private java.lang.Object query_;
+
+    public QueryCase getQueryCase() {
+      return QueryCase.forNumber(queryCase_);
+    }
+
+    public Builder clearQuery() {
+      queryCase_ = 0;
+      query_ = null;
+      onChanged();
+      return this;
+    }
+
+    private int bitField0_;
+
+    /**
+     *
+     *
+     * <pre>
+     * If [natural language text][google.cloud.dialogflow.cx.v3beta1.TextInput] was provided as input, this field
+     * will contain a copy of the text.
+     * </pre>
+     *
+     * <code>string text = 1;</code>
+     *
+     * @return The text.
+     */
+    @java.lang.Override
+    public java.lang.String getText() {
+      java.lang.Object ref = "";
+      if (queryCase_ == 1) {
+        ref = query_;
+      }
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (queryCase_ == 1) {
+          query_ = s;
+        }
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If [natural language text][google.cloud.dialogflow.cx.v3beta1.TextInput] was provided as input, this field
+     * will contain a copy of the text.
+     * </pre>
+     *
+     * <code>string text = 1;</code>
+     *
+     * @return The bytes for text.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getTextBytes() {
+      java.lang.Object ref = "";
+      if (queryCase_ == 1) {
+        ref = query_;
+      }
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        if (queryCase_ == 1) {
+          query_ = b;
+        }
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If [natural language text][google.cloud.dialogflow.cx.v3beta1.TextInput] was provided as input, this field
+     * will contain a copy of the text.
+     * </pre>
+     *
+     * <code>string text = 1;</code>
+     *
+     * @param value The text to set.
+     * @return This builder for chaining.
+     */
+    public Builder setText(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      queryCase_ = 1;
+      query_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If [natural language text][google.cloud.dialogflow.cx.v3beta1.TextInput] was provided as input, this field
+     * will contain a copy of the text.
+     * </pre>
+     *
+     * <code>string text = 1;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearText() {
+      if (queryCase_ == 1) {
+        queryCase_ = 0;
+        query_ = null;
+        onChanged();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If [natural language text][google.cloud.dialogflow.cx.v3beta1.TextInput] was provided as input, this field
+     * will contain a copy of the text.
+     * </pre>
+     *
+     * <code>string text = 1;</code>
+     *
+     * @param value The bytes for text to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTextBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      queryCase_ = 1;
+      query_ = value;
+      onChanged();
+      return this;
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * If an [intent][google.cloud.dialogflow.cx.v3beta1.IntentInput] was provided as input, this field will
+     * contain a copy of the intent identifier.
+     * </pre>
+     *
+     * <code>string trigger_intent = 2;</code>
+     *
+     * @return The triggerIntent.
+     */
+    @java.lang.Override
+    public java.lang.String getTriggerIntent() {
+      java.lang.Object ref = "";
+      if (queryCase_ == 2) {
+        ref = query_;
+      }
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (queryCase_ == 2) {
+          query_ = s;
+        }
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If an [intent][google.cloud.dialogflow.cx.v3beta1.IntentInput] was provided as input, this field will
+     * contain a copy of the intent identifier.
+     * </pre>
+     *
+     * <code>string trigger_intent = 2;</code>
+     *
+     * @return The bytes for triggerIntent.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getTriggerIntentBytes() {
+      java.lang.Object ref = "";
+      if (queryCase_ == 2) {
+        ref = query_;
+      }
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        if (queryCase_ == 2) {
+          query_ = b;
+        }
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If an [intent][google.cloud.dialogflow.cx.v3beta1.IntentInput] was provided as input, this field will
+     * contain a copy of the intent identifier.
+     * </pre>
+     *
+     * <code>string trigger_intent = 2;</code>
+     *
+     * @param value The triggerIntent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTriggerIntent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      queryCase_ = 2;
+      query_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If an [intent][google.cloud.dialogflow.cx.v3beta1.IntentInput] was provided as input, this field will
+     * contain a copy of the intent identifier.
+     * </pre>
+     *
+     * <code>string trigger_intent = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearTriggerIntent() {
+      if (queryCase_ == 2) {
+        queryCase_ = 0;
+        query_ = null;
+        onChanged();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If an [intent][google.cloud.dialogflow.cx.v3beta1.IntentInput] was provided as input, this field will
+     * contain a copy of the intent identifier.
+     * </pre>
+     *
+     * <code>string trigger_intent = 2;</code>
+     *
+     * @param value The bytes for triggerIntent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTriggerIntentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      queryCase_ = 2;
+      query_ = value;
+      onChanged();
+      return this;
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * If [natural language speech audio][google.cloud.dialogflow.cx.v3beta1.AudioInput] was provided as input,
+     * this field will contain the trascript for the audio.
+     * </pre>
+     *
+     * <code>string transcript = 3;</code>
+     *
+     * @return The transcript.
+     */
+    @java.lang.Override
+    public java.lang.String getTranscript() {
+      java.lang.Object ref = "";
+      if (queryCase_ == 3) {
+        ref = query_;
+      }
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (queryCase_ == 3) {
+          query_ = s;
+        }
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If [natural language speech audio][google.cloud.dialogflow.cx.v3beta1.AudioInput] was provided as input,
+     * this field will contain the trascript for the audio.
+     * </pre>
+     *
+     * <code>string transcript = 3;</code>
+     *
+     * @return The bytes for transcript.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getTranscriptBytes() {
+      java.lang.Object ref = "";
+      if (queryCase_ == 3) {
+        ref = query_;
+      }
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        if (queryCase_ == 3) {
+          query_ = b;
+        }
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If [natural language speech audio][google.cloud.dialogflow.cx.v3beta1.AudioInput] was provided as input,
+     * this field will contain the trascript for the audio.
+     * </pre>
+     *
+     * <code>string transcript = 3;</code>
+     *
+     * @param value The transcript to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTranscript(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      queryCase_ = 3;
+      query_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If [natural language speech audio][google.cloud.dialogflow.cx.v3beta1.AudioInput] was provided as input,
+     * this field will contain the trascript for the audio.
+     * </pre>
+     *
+     * <code>string transcript = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearTranscript() {
+      if (queryCase_ == 3) {
+        queryCase_ = 0;
+        query_ = null;
+        onChanged();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If [natural language speech audio][google.cloud.dialogflow.cx.v3beta1.AudioInput] was provided as input,
+     * this field will contain the trascript for the audio.
+     * </pre>
+     *
+     * <code>string transcript = 3;</code>
+     *
+     * @param value The bytes for transcript to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTranscriptBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      queryCase_ = 3;
+      query_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Match> matches_ =
+        java.util.Collections.emptyList();
+
+    private void ensureMatchesIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        matches_ = new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.Match>(matches_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Match,
+            com.google.cloud.dialogflow.cx.v3beta1.Match.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.MatchOrBuilder>
+        matchesBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * Match results, if more than one, ordered descendingly by the confidence
+     * we have that the particular intent matches the query.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Match> getMatchesList() {
+      if (matchesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(matches_);
+      } else {
+        return matchesBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Match results, if more than one, ordered descendingly by the confidence
+     * we have that the particular intent matches the query.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+     */
+    public int getMatchesCount() {
+      if (matchesBuilder_ == null) {
+        return matches_.size();
+      } else {
+        return matchesBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Match results, if more than one, ordered descendingly by the confidence
+     * we have that the particular intent matches the query.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Match getMatches(int index) {
+      if (matchesBuilder_ == null) {
+        return matches_.get(index);
+      } else {
+        return matchesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Match results, if more than one, ordered descendingly by the confidence
+     * we have that the particular intent matches the query.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+     */
+    public Builder setMatches(int index, com.google.cloud.dialogflow.cx.v3beta1.Match value) {
+      if (matchesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureMatchesIsMutable();
+        matches_.set(index, value);
+        onChanged();
+      } else {
+        matchesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Match results, if more than one, ordered descendingly by the confidence
+     * we have that the particular intent matches the query.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+     */
+    public Builder setMatches(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Match.Builder builderForValue) {
+      if (matchesBuilder_ == null) {
+        ensureMatchesIsMutable();
+        matches_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        matchesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Match results, if more than one, ordered descendingly by the confidence
+     * we have that the particular intent matches the query.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+     */
+    public Builder addMatches(com.google.cloud.dialogflow.cx.v3beta1.Match value) {
+      if (matchesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureMatchesIsMutable();
+        matches_.add(value);
+        onChanged();
+      } else {
+        matchesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Match results, if more than one, ordered descendingly by the confidence
+     * we have that the particular intent matches the query.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+     */
+    public Builder addMatches(int index, com.google.cloud.dialogflow.cx.v3beta1.Match value) {
+      if (matchesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureMatchesIsMutable();
+        matches_.add(index, value);
+        onChanged();
+      } else {
+        matchesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Match results, if more than one, ordered descendingly by the confidence
+     * we have that the particular intent matches the query.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+     */
+    public Builder addMatches(
+        com.google.cloud.dialogflow.cx.v3beta1.Match.Builder builderForValue) {
+      if (matchesBuilder_ == null) {
+        ensureMatchesIsMutable();
+        matches_.add(builderForValue.build());
+        onChanged();
+      } else {
+        matchesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Match results, if more than one, ordered descendingly by the confidence
+     * we have that the particular intent matches the query.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+     */
+    public Builder addMatches(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.Match.Builder builderForValue) {
+      if (matchesBuilder_ == null) {
+        ensureMatchesIsMutable();
+        matches_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        matchesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Match results, if more than one, ordered descendingly by the confidence
+     * we have that the particular intent matches the query.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+     */
+    public Builder addAllMatches(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.Match> values) {
+      if (matchesBuilder_ == null) {
+        ensureMatchesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, matches_);
+        onChanged();
+      } else {
+        matchesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Match results, if more than one, ordered descendingly by the confidence
+     * we have that the particular intent matches the query.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+     */
+    public Builder clearMatches() {
+      if (matchesBuilder_ == null) {
+        matches_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        matchesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Match results, if more than one, ordered descendingly by the confidence
+     * we have that the particular intent matches the query.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+     */
+    public Builder removeMatches(int index) {
+      if (matchesBuilder_ == null) {
+        ensureMatchesIsMutable();
+        matches_.remove(index);
+        onChanged();
+      } else {
+        matchesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Match results, if more than one, ordered descendingly by the confidence
+     * we have that the particular intent matches the query.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Match.Builder getMatchesBuilder(int index) {
+      return getMatchesFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Match results, if more than one, ordered descendingly by the confidence
+     * we have that the particular intent matches the query.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.MatchOrBuilder getMatchesOrBuilder(int index) {
+      if (matchesBuilder_ == null) {
+        return matches_.get(index);
+      } else {
+        return matchesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Match results, if more than one, ordered descendingly by the confidence
+     * we have that the particular intent matches the query.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+     */
+    public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.MatchOrBuilder>
+        getMatchesOrBuilderList() {
+      if (matchesBuilder_ != null) {
+        return matchesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(matches_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Match results, if more than one, ordered descendingly by the confidence
+     * we have that the particular intent matches the query.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Match.Builder addMatchesBuilder() {
+      return getMatchesFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.cx.v3beta1.Match.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Match results, if more than one, ordered descendingly by the confidence
+     * we have that the particular intent matches the query.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Match.Builder addMatchesBuilder(int index) {
+      return getMatchesFieldBuilder()
+          .addBuilder(index, com.google.cloud.dialogflow.cx.v3beta1.Match.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Match results, if more than one, ordered descendingly by the confidence
+     * we have that the particular intent matches the query.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Match.Builder>
+        getMatchesBuilderList() {
+      return getMatchesFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Match,
+            com.google.cloud.dialogflow.cx.v3beta1.Match.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.MatchOrBuilder>
+        getMatchesFieldBuilder() {
+      if (matchesBuilder_ == null) {
+        matchesBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Match,
+                com.google.cloud.dialogflow.cx.v3beta1.Match.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.MatchOrBuilder>(
+                matches_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+        matches_ = null;
+      }
+      return matchesBuilder_;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Page currentPage_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Page,
+            com.google.cloud.dialogflow.cx.v3beta1.Page.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder>
+        currentPageBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+     * including but not limited to `name` and `display_name`.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 5;</code>
+     *
+     * @return Whether the currentPage field is set.
+     */
+    public boolean hasCurrentPage() {
+      return currentPageBuilder_ != null || currentPage_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+     * including but not limited to `name` and `display_name`.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 5;</code>
+     *
+     * @return The currentPage.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Page getCurrentPage() {
+      if (currentPageBuilder_ == null) {
+        return currentPage_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Page.getDefaultInstance()
+            : currentPage_;
+      } else {
+        return currentPageBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+     * including but not limited to `name` and `display_name`.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 5;</code>
+     */
+    public Builder setCurrentPage(com.google.cloud.dialogflow.cx.v3beta1.Page value) {
+      if (currentPageBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        currentPage_ = value;
+        onChanged();
+      } else {
+        currentPageBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+     * including but not limited to `name` and `display_name`.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 5;</code>
+     */
+    public Builder setCurrentPage(
+        com.google.cloud.dialogflow.cx.v3beta1.Page.Builder builderForValue) {
+      if (currentPageBuilder_ == null) {
+        currentPage_ = builderForValue.build();
+        onChanged();
+      } else {
+        currentPageBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+     * including but not limited to `name` and `display_name`.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 5;</code>
+     */
+    public Builder mergeCurrentPage(com.google.cloud.dialogflow.cx.v3beta1.Page value) {
+      if (currentPageBuilder_ == null) {
+        if (currentPage_ != null) {
+          currentPage_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Page.newBuilder(currentPage_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          currentPage_ = value;
+        }
+        onChanged();
+      } else {
+        currentPageBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+     * including but not limited to `name` and `display_name`.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 5;</code>
+     */
+    public Builder clearCurrentPage() {
+      if (currentPageBuilder_ == null) {
+        currentPage_ = null;
+        onChanged();
+      } else {
+        currentPage_ = null;
+        currentPageBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+     * including but not limited to `name` and `display_name`.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 5;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Page.Builder getCurrentPageBuilder() {
+
+      onChanged();
+      return getCurrentPageFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+     * including but not limited to `name` and `display_name`.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 5;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder getCurrentPageOrBuilder() {
+      if (currentPageBuilder_ != null) {
+        return currentPageBuilder_.getMessageOrBuilder();
+      } else {
+        return currentPage_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Page.getDefaultInstance()
+            : currentPage_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+     * including but not limited to `name` and `display_name`.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 5;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Page,
+            com.google.cloud.dialogflow.cx.v3beta1.Page.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder>
+        getCurrentPageFieldBuilder() {
+      if (currentPageBuilder_ == null) {
+        currentPageBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Page,
+                com.google.cloud.dialogflow.cx.v3beta1.Page.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder>(
+                getCurrentPage(), getParentForChildren(), isClean());
+        currentPage_ = null;
+      }
+      return currentPageBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<MatchIntentResponse> PARSER =
+      new com.google.protobuf.AbstractParser<MatchIntentResponse>() {
+        @java.lang.Override
+        public MatchIntentResponse parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new MatchIntentResponse(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<MatchIntentResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<MatchIntentResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/MatchIntentResponseOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/MatchIntentResponseOrBuilder.java
new file mode 100644
index 000000000..50fb2bcae
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/MatchIntentResponseOrBuilder.java
@@ -0,0 +1,203 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface MatchIntentResponseOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * If [natural language text][google.cloud.dialogflow.cx.v3beta1.TextInput] was provided as input, this field
+   * will contain a copy of the text.
+   * </pre>
+   *
+   * <code>string text = 1;</code>
+   *
+   * @return The text.
+   */
+  java.lang.String getText();
+  /**
+   *
+   *
+   * <pre>
+   * If [natural language text][google.cloud.dialogflow.cx.v3beta1.TextInput] was provided as input, this field
+   * will contain a copy of the text.
+   * </pre>
+   *
+   * <code>string text = 1;</code>
+   *
+   * @return The bytes for text.
+   */
+  com.google.protobuf.ByteString getTextBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * If an [intent][google.cloud.dialogflow.cx.v3beta1.IntentInput] was provided as input, this field will
+   * contain a copy of the intent identifier.
+   * </pre>
+   *
+   * <code>string trigger_intent = 2;</code>
+   *
+   * @return The triggerIntent.
+   */
+  java.lang.String getTriggerIntent();
+  /**
+   *
+   *
+   * <pre>
+   * If an [intent][google.cloud.dialogflow.cx.v3beta1.IntentInput] was provided as input, this field will
+   * contain a copy of the intent identifier.
+   * </pre>
+   *
+   * <code>string trigger_intent = 2;</code>
+   *
+   * @return The bytes for triggerIntent.
+   */
+  com.google.protobuf.ByteString getTriggerIntentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * If [natural language speech audio][google.cloud.dialogflow.cx.v3beta1.AudioInput] was provided as input,
+   * this field will contain the trascript for the audio.
+   * </pre>
+   *
+   * <code>string transcript = 3;</code>
+   *
+   * @return The transcript.
+   */
+  java.lang.String getTranscript();
+  /**
+   *
+   *
+   * <pre>
+   * If [natural language speech audio][google.cloud.dialogflow.cx.v3beta1.AudioInput] was provided as input,
+   * this field will contain the trascript for the audio.
+   * </pre>
+   *
+   * <code>string transcript = 3;</code>
+   *
+   * @return The bytes for transcript.
+   */
+  com.google.protobuf.ByteString getTranscriptBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Match results, if more than one, ordered descendingly by the confidence
+   * we have that the particular intent matches the query.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.Match> getMatchesList();
+  /**
+   *
+   *
+   * <pre>
+   * Match results, if more than one, ordered descendingly by the confidence
+   * we have that the particular intent matches the query.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Match getMatches(int index);
+  /**
+   *
+   *
+   * <pre>
+   * Match results, if more than one, ordered descendingly by the confidence
+   * we have that the particular intent matches the query.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+   */
+  int getMatchesCount();
+  /**
+   *
+   *
+   * <pre>
+   * Match results, if more than one, ordered descendingly by the confidence
+   * we have that the particular intent matches the query.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.MatchOrBuilder>
+      getMatchesOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * Match results, if more than one, ordered descendingly by the confidence
+   * we have that the particular intent matches the query.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.Match matches = 4;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.MatchOrBuilder getMatchesOrBuilder(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+   * including but not limited to `name` and `display_name`.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 5;</code>
+   *
+   * @return Whether the currentPage field is set.
+   */
+  boolean hasCurrentPage();
+  /**
+   *
+   *
+   * <pre>
+   * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+   * including but not limited to `name` and `display_name`.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 5;</code>
+   *
+   * @return The currentPage.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Page getCurrentPage();
+  /**
+   *
+   *
+   * <pre>
+   * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+   * including but not limited to `name` and `display_name`.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 5;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder getCurrentPageOrBuilder();
+
+  public com.google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse.QueryCase getQueryCase();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/MatchOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/MatchOrBuilder.java
new file mode 100644
index 000000000..633982743
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/MatchOrBuilder.java
@@ -0,0 +1,209 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface MatchOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.Match)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the query. Some, not all fields are filled in
+   * this message, including but not limited to: `name` and `display_name`. Only
+   * filled for [`INTENT`][google.cloud.dialogflow.cx.v3beta1.Match.MatchType] match type.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 1;</code>
+   *
+   * @return Whether the intent field is set.
+   */
+  boolean hasIntent();
+  /**
+   *
+   *
+   * <pre>
+   * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the query. Some, not all fields are filled in
+   * this message, including but not limited to: `name` and `display_name`. Only
+   * filled for [`INTENT`][google.cloud.dialogflow.cx.v3beta1.Match.MatchType] match type.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 1;</code>
+   *
+   * @return The intent.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Intent getIntent();
+  /**
+   *
+   *
+   * <pre>
+   * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the query. Some, not all fields are filled in
+   * this message, including but not limited to: `name` and `display_name`. Only
+   * filled for [`INTENT`][google.cloud.dialogflow.cx.v3beta1.Match.MatchType] match type.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder getIntentOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The collection of parameters extracted from the query.
+   * Depending on your protocol or client library language, this is a
+   * map, associative array, symbol table, dictionary, or JSON object
+   * composed of a collection of (MapKey, MapValue) pairs:
+   * -   MapKey type: string
+   * -   MapKey value: parameter name
+   * -   MapValue type:
+   *     -   If parameter's entity type is a composite entity: map
+   *     -   Else: string or number, depending on parameter value type
+   * -   MapValue value:
+   *     -   If parameter's entity type is a composite entity:
+   *         map from composite entity property names to property values
+   *     -   Else: parameter value
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct parameters = 2;</code>
+   *
+   * @return Whether the parameters field is set.
+   */
+  boolean hasParameters();
+  /**
+   *
+   *
+   * <pre>
+   * The collection of parameters extracted from the query.
+   * Depending on your protocol or client library language, this is a
+   * map, associative array, symbol table, dictionary, or JSON object
+   * composed of a collection of (MapKey, MapValue) pairs:
+   * -   MapKey type: string
+   * -   MapKey value: parameter name
+   * -   MapValue type:
+   *     -   If parameter's entity type is a composite entity: map
+   *     -   Else: string or number, depending on parameter value type
+   * -   MapValue value:
+   *     -   If parameter's entity type is a composite entity:
+   *         map from composite entity property names to property values
+   *     -   Else: parameter value
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct parameters = 2;</code>
+   *
+   * @return The parameters.
+   */
+  com.google.protobuf.Struct getParameters();
+  /**
+   *
+   *
+   * <pre>
+   * The collection of parameters extracted from the query.
+   * Depending on your protocol or client library language, this is a
+   * map, associative array, symbol table, dictionary, or JSON object
+   * composed of a collection of (MapKey, MapValue) pairs:
+   * -   MapKey type: string
+   * -   MapKey value: parameter name
+   * -   MapValue type:
+   *     -   If parameter's entity type is a composite entity: map
+   *     -   Else: string or number, depending on parameter value type
+   * -   MapValue value:
+   *     -   If parameter's entity type is a composite entity:
+   *         map from composite entity property names to property values
+   *     -   Else: parameter value
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct parameters = 2;</code>
+   */
+  com.google.protobuf.StructOrBuilder getParametersOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Final text input which was matched during MatchIntent. This value can be
+   * different from original input sent in request because of spelling
+   * correction or other processing.
+   * </pre>
+   *
+   * <code>string resolved_input = 3;</code>
+   *
+   * @return The resolvedInput.
+   */
+  java.lang.String getResolvedInput();
+  /**
+   *
+   *
+   * <pre>
+   * Final text input which was matched during MatchIntent. This value can be
+   * different from original input sent in request because of spelling
+   * correction or other processing.
+   * </pre>
+   *
+   * <code>string resolved_input = 3;</code>
+   *
+   * @return The bytes for resolvedInput.
+   */
+  com.google.protobuf.ByteString getResolvedInputBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Type of this [Match][google.cloud.dialogflow.cx.v3beta1.Match].
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Match.MatchType match_type = 4;</code>
+   *
+   * @return The enum numeric value on the wire for matchType.
+   */
+  int getMatchTypeValue();
+  /**
+   *
+   *
+   * <pre>
+   * Type of this [Match][google.cloud.dialogflow.cx.v3beta1.Match].
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Match.MatchType match_type = 4;</code>
+   *
+   * @return The matchType.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Match.MatchType getMatchType();
+
+  /**
+   *
+   *
+   * <pre>
+   * The confidence of this match. Values range from 0.0 (completely uncertain)
+   * to 1.0 (completely certain).
+   * This value is for informational purpose only and is only used to help match
+   * the best intent within the classification threshold. This value may change
+   * for the same end-user expression at any time due to a model retraining or
+   * change in implementation.
+   * </pre>
+   *
+   * <code>float confidence = 5;</code>
+   *
+   * @return The confidence.
+   */
+  float getConfidence();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/NluSettings.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/NluSettings.java
new file mode 100644
index 000000000..253a48f1f
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/NluSettings.java
@@ -0,0 +1,1351 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/flow.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Settings related to NLU.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.NluSettings}
+ */
+public final class NluSettings extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.NluSettings)
+    NluSettingsOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use NluSettings.newBuilder() to construct.
+  private NluSettings(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private NluSettings() {
+    modelType_ = 0;
+    modelTrainingMode_ = 0;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new NluSettings();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private NluSettings(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 8:
+            {
+              int rawValue = input.readEnum();
+
+              modelType_ = rawValue;
+              break;
+            }
+          case 29:
+            {
+              classificationThreshold_ = input.readFloat();
+              break;
+            }
+          case 32:
+            {
+              int rawValue = input.readEnum();
+
+              modelTrainingMode_ = rawValue;
+              break;
+            }
+          case 40:
+            {
+              enableSpellCorrection_ = input.readBool();
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_NluSettings_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_NluSettings_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.NluSettings.class,
+            com.google.cloud.dialogflow.cx.v3beta1.NluSettings.Builder.class);
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * NLU model type.
+   * </pre>
+   *
+   * Protobuf enum {@code google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType}
+   */
+  public enum ModelType implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     *
+     *
+     * <pre>
+     * Not specified. `MODEL_TYPE_STANDARD` will be used.
+     * </pre>
+     *
+     * <code>MODEL_TYPE_UNSPECIFIED = 0;</code>
+     */
+    MODEL_TYPE_UNSPECIFIED(0),
+    /**
+     *
+     *
+     * <pre>
+     * Use standard NLU model.
+     * </pre>
+     *
+     * <code>MODEL_TYPE_STANDARD = 1;</code>
+     */
+    MODEL_TYPE_STANDARD(1),
+    /**
+     *
+     *
+     * <pre>
+     * Use custom NLU model.
+     * </pre>
+     *
+     * <code>MODEL_TYPE_CUSTOM = 2;</code>
+     */
+    MODEL_TYPE_CUSTOM(2),
+    /**
+     *
+     *
+     * <pre>
+     * Use advanced NLU model.
+     * </pre>
+     *
+     * <code>MODEL_TYPE_ADVANCED = 3;</code>
+     */
+    MODEL_TYPE_ADVANCED(3),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     *
+     *
+     * <pre>
+     * Not specified. `MODEL_TYPE_STANDARD` will be used.
+     * </pre>
+     *
+     * <code>MODEL_TYPE_UNSPECIFIED = 0;</code>
+     */
+    public static final int MODEL_TYPE_UNSPECIFIED_VALUE = 0;
+    /**
+     *
+     *
+     * <pre>
+     * Use standard NLU model.
+     * </pre>
+     *
+     * <code>MODEL_TYPE_STANDARD = 1;</code>
+     */
+    public static final int MODEL_TYPE_STANDARD_VALUE = 1;
+    /**
+     *
+     *
+     * <pre>
+     * Use custom NLU model.
+     * </pre>
+     *
+     * <code>MODEL_TYPE_CUSTOM = 2;</code>
+     */
+    public static final int MODEL_TYPE_CUSTOM_VALUE = 2;
+    /**
+     *
+     *
+     * <pre>
+     * Use advanced NLU model.
+     * </pre>
+     *
+     * <code>MODEL_TYPE_ADVANCED = 3;</code>
+     */
+    public static final int MODEL_TYPE_ADVANCED_VALUE = 3;
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static ModelType valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static ModelType forNumber(int value) {
+      switch (value) {
+        case 0:
+          return MODEL_TYPE_UNSPECIFIED;
+        case 1:
+          return MODEL_TYPE_STANDARD;
+        case 2:
+          return MODEL_TYPE_CUSTOM;
+        case 3:
+          return MODEL_TYPE_ADVANCED;
+        default:
+          return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap<ModelType> internalGetValueMap() {
+      return internalValueMap;
+    }
+
+    private static final com.google.protobuf.Internal.EnumLiteMap<ModelType> internalValueMap =
+        new com.google.protobuf.Internal.EnumLiteMap<ModelType>() {
+          public ModelType findValueByNumber(int number) {
+            return ModelType.forNumber(number);
+          }
+        };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+
+    public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+      return getDescriptor();
+    }
+
+    public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.NluSettings.getDescriptor()
+          .getEnumTypes()
+          .get(0);
+    }
+
+    private static final ModelType[] VALUES = values();
+
+    public static ModelType valueOf(com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private ModelType(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType)
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * NLU model training mode.
+   * </pre>
+   *
+   * Protobuf enum {@code google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode}
+   */
+  public enum ModelTrainingMode implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     *
+     *
+     * <pre>
+     * Not specified. `MODEL_TRAINING_MODE_AUTOMATIC` will be used.
+     * </pre>
+     *
+     * <code>MODEL_TRAINING_MODE_UNSPECIFIED = 0;</code>
+     */
+    MODEL_TRAINING_MODE_UNSPECIFIED(0),
+    /**
+     *
+     *
+     * <pre>
+     * NLU model training is automatically triggered when a flow gets modified.
+     * User can also manually trigger model training in this mode.
+     * </pre>
+     *
+     * <code>MODEL_TRAINING_MODE_AUTOMATIC = 1;</code>
+     */
+    MODEL_TRAINING_MODE_AUTOMATIC(1),
+    /**
+     *
+     *
+     * <pre>
+     * User needs to manually trigger NLU model training. Best for large flows
+     * whose models take long time to train.
+     * </pre>
+     *
+     * <code>MODEL_TRAINING_MODE_MANUAL = 2;</code>
+     */
+    MODEL_TRAINING_MODE_MANUAL(2),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     *
+     *
+     * <pre>
+     * Not specified. `MODEL_TRAINING_MODE_AUTOMATIC` will be used.
+     * </pre>
+     *
+     * <code>MODEL_TRAINING_MODE_UNSPECIFIED = 0;</code>
+     */
+    public static final int MODEL_TRAINING_MODE_UNSPECIFIED_VALUE = 0;
+    /**
+     *
+     *
+     * <pre>
+     * NLU model training is automatically triggered when a flow gets modified.
+     * User can also manually trigger model training in this mode.
+     * </pre>
+     *
+     * <code>MODEL_TRAINING_MODE_AUTOMATIC = 1;</code>
+     */
+    public static final int MODEL_TRAINING_MODE_AUTOMATIC_VALUE = 1;
+    /**
+     *
+     *
+     * <pre>
+     * User needs to manually trigger NLU model training. Best for large flows
+     * whose models take long time to train.
+     * </pre>
+     *
+     * <code>MODEL_TRAINING_MODE_MANUAL = 2;</code>
+     */
+    public static final int MODEL_TRAINING_MODE_MANUAL_VALUE = 2;
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static ModelTrainingMode valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static ModelTrainingMode forNumber(int value) {
+      switch (value) {
+        case 0:
+          return MODEL_TRAINING_MODE_UNSPECIFIED;
+        case 1:
+          return MODEL_TRAINING_MODE_AUTOMATIC;
+        case 2:
+          return MODEL_TRAINING_MODE_MANUAL;
+        default:
+          return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap<ModelTrainingMode>
+        internalGetValueMap() {
+      return internalValueMap;
+    }
+
+    private static final com.google.protobuf.Internal.EnumLiteMap<ModelTrainingMode>
+        internalValueMap =
+            new com.google.protobuf.Internal.EnumLiteMap<ModelTrainingMode>() {
+              public ModelTrainingMode findValueByNumber(int number) {
+                return ModelTrainingMode.forNumber(number);
+              }
+            };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+
+    public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+      return getDescriptor();
+    }
+
+    public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.NluSettings.getDescriptor()
+          .getEnumTypes()
+          .get(1);
+    }
+
+    private static final ModelTrainingMode[] VALUES = values();
+
+    public static ModelTrainingMode valueOf(
+        com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private ModelTrainingMode(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode)
+  }
+
+  public static final int MODEL_TYPE_FIELD_NUMBER = 1;
+  private int modelType_;
+  /**
+   *
+   *
+   * <pre>
+   * Indicates the type of NLU model.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType model_type = 1;</code>
+   *
+   * @return The enum numeric value on the wire for modelType.
+   */
+  @java.lang.Override
+  public int getModelTypeValue() {
+    return modelType_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Indicates the type of NLU model.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType model_type = 1;</code>
+   *
+   * @return The modelType.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType getModelType() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType result =
+        com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType.valueOf(modelType_);
+    return result == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType.UNRECOGNIZED
+        : result;
+  }
+
+  public static final int CLASSIFICATION_THRESHOLD_FIELD_NUMBER = 3;
+  private float classificationThreshold_;
+  /**
+   *
+   *
+   * <pre>
+   * To filter out false positive results and still get variety in matched
+   * natural language inputs for your agent, you can tune the machine learning
+   * classification threshold. If the returned score value is less than the
+   * threshold value, then a no-match event will be triggered. The score values
+   * range from 0.0 (completely uncertain) to 1.0 (completely certain). If set
+   * to 0.0, the default of 0.3 is used.
+   * </pre>
+   *
+   * <code>float classification_threshold = 3;</code>
+   *
+   * @return The classificationThreshold.
+   */
+  @java.lang.Override
+  public float getClassificationThreshold() {
+    return classificationThreshold_;
+  }
+
+  public static final int MODEL_TRAINING_MODE_FIELD_NUMBER = 4;
+  private int modelTrainingMode_;
+  /**
+   *
+   *
+   * <pre>
+   * Indicates NLU model training mode.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode model_training_mode = 4;
+   * </code>
+   *
+   * @return The enum numeric value on the wire for modelTrainingMode.
+   */
+  @java.lang.Override
+  public int getModelTrainingModeValue() {
+    return modelTrainingMode_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Indicates NLU model training mode.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode model_training_mode = 4;
+   * </code>
+   *
+   * @return The modelTrainingMode.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode
+      getModelTrainingMode() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode result =
+        com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode.valueOf(
+            modelTrainingMode_);
+    return result == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode.UNRECOGNIZED
+        : result;
+  }
+
+  public static final int ENABLE_SPELL_CORRECTION_FIELD_NUMBER = 5;
+  private boolean enableSpellCorrection_;
+  /**
+   *
+   *
+   * <pre>
+   * Indicates if automatic spell correction is enabled in detect intent
+   * requests.
+   * </pre>
+   *
+   * <code>bool enable_spell_correction = 5 [deprecated = true];</code>
+   *
+   * @return The enableSpellCorrection.
+   */
+  @java.lang.Override
+  @java.lang.Deprecated
+  public boolean getEnableSpellCorrection() {
+    return enableSpellCorrection_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (modelType_
+        != com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType.MODEL_TYPE_UNSPECIFIED
+            .getNumber()) {
+      output.writeEnum(1, modelType_);
+    }
+    if (classificationThreshold_ != 0F) {
+      output.writeFloat(3, classificationThreshold_);
+    }
+    if (modelTrainingMode_
+        != com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode
+            .MODEL_TRAINING_MODE_UNSPECIFIED
+            .getNumber()) {
+      output.writeEnum(4, modelTrainingMode_);
+    }
+    if (enableSpellCorrection_ != false) {
+      output.writeBool(5, enableSpellCorrection_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (modelType_
+        != com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType.MODEL_TYPE_UNSPECIFIED
+            .getNumber()) {
+      size += com.google.protobuf.CodedOutputStream.computeEnumSize(1, modelType_);
+    }
+    if (classificationThreshold_ != 0F) {
+      size += com.google.protobuf.CodedOutputStream.computeFloatSize(3, classificationThreshold_);
+    }
+    if (modelTrainingMode_
+        != com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode
+            .MODEL_TRAINING_MODE_UNSPECIFIED
+            .getNumber()) {
+      size += com.google.protobuf.CodedOutputStream.computeEnumSize(4, modelTrainingMode_);
+    }
+    if (enableSpellCorrection_ != false) {
+      size += com.google.protobuf.CodedOutputStream.computeBoolSize(5, enableSpellCorrection_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.NluSettings)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.NluSettings other =
+        (com.google.cloud.dialogflow.cx.v3beta1.NluSettings) obj;
+
+    if (modelType_ != other.modelType_) return false;
+    if (java.lang.Float.floatToIntBits(getClassificationThreshold())
+        != java.lang.Float.floatToIntBits(other.getClassificationThreshold())) return false;
+    if (modelTrainingMode_ != other.modelTrainingMode_) return false;
+    if (getEnableSpellCorrection() != other.getEnableSpellCorrection()) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + MODEL_TYPE_FIELD_NUMBER;
+    hash = (53 * hash) + modelType_;
+    hash = (37 * hash) + CLASSIFICATION_THRESHOLD_FIELD_NUMBER;
+    hash = (53 * hash) + java.lang.Float.floatToIntBits(getClassificationThreshold());
+    hash = (37 * hash) + MODEL_TRAINING_MODE_FIELD_NUMBER;
+    hash = (53 * hash) + modelTrainingMode_;
+    hash = (37 * hash) + ENABLE_SPELL_CORRECTION_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnableSpellCorrection());
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.NluSettings parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.NluSettings parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.NluSettings parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.NluSettings parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.NluSettings parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.NluSettings parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.NluSettings parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.NluSettings parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.NluSettings parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.NluSettings parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.NluSettings parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.NluSettings parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.cx.v3beta1.NluSettings prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Settings related to NLU.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.NluSettings}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.NluSettings)
+      com.google.cloud.dialogflow.cx.v3beta1.NluSettingsOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_NluSettings_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_NluSettings_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.NluSettings.class,
+              com.google.cloud.dialogflow.cx.v3beta1.NluSettings.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.NluSettings.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      modelType_ = 0;
+
+      classificationThreshold_ = 0F;
+
+      modelTrainingMode_ = 0;
+
+      enableSpellCorrection_ = false;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_NluSettings_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.NluSettings getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.NluSettings.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.NluSettings build() {
+      com.google.cloud.dialogflow.cx.v3beta1.NluSettings result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.NluSettings buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.NluSettings result =
+          new com.google.cloud.dialogflow.cx.v3beta1.NluSettings(this);
+      result.modelType_ = modelType_;
+      result.classificationThreshold_ = classificationThreshold_;
+      result.modelTrainingMode_ = modelTrainingMode_;
+      result.enableSpellCorrection_ = enableSpellCorrection_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.NluSettings) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.NluSettings) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.NluSettings other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.NluSettings.getDefaultInstance())
+        return this;
+      if (other.modelType_ != 0) {
+        setModelTypeValue(other.getModelTypeValue());
+      }
+      if (other.getClassificationThreshold() != 0F) {
+        setClassificationThreshold(other.getClassificationThreshold());
+      }
+      if (other.modelTrainingMode_ != 0) {
+        setModelTrainingModeValue(other.getModelTrainingModeValue());
+      }
+      if (other.getEnableSpellCorrection() != false) {
+        setEnableSpellCorrection(other.getEnableSpellCorrection());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.NluSettings parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.NluSettings) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int modelType_ = 0;
+    /**
+     *
+     *
+     * <pre>
+     * Indicates the type of NLU model.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType model_type = 1;</code>
+     *
+     * @return The enum numeric value on the wire for modelType.
+     */
+    @java.lang.Override
+    public int getModelTypeValue() {
+      return modelType_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates the type of NLU model.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType model_type = 1;</code>
+     *
+     * @param value The enum numeric value on the wire for modelType to set.
+     * @return This builder for chaining.
+     */
+    public Builder setModelTypeValue(int value) {
+
+      modelType_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates the type of NLU model.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType model_type = 1;</code>
+     *
+     * @return The modelType.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType getModelType() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType result =
+          com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType.valueOf(modelType_);
+      return result == null
+          ? com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType.UNRECOGNIZED
+          : result;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates the type of NLU model.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType model_type = 1;</code>
+     *
+     * @param value The modelType to set.
+     * @return This builder for chaining.
+     */
+    public Builder setModelType(
+        com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      modelType_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates the type of NLU model.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType model_type = 1;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearModelType() {
+
+      modelType_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private float classificationThreshold_;
+    /**
+     *
+     *
+     * <pre>
+     * To filter out false positive results and still get variety in matched
+     * natural language inputs for your agent, you can tune the machine learning
+     * classification threshold. If the returned score value is less than the
+     * threshold value, then a no-match event will be triggered. The score values
+     * range from 0.0 (completely uncertain) to 1.0 (completely certain). If set
+     * to 0.0, the default of 0.3 is used.
+     * </pre>
+     *
+     * <code>float classification_threshold = 3;</code>
+     *
+     * @return The classificationThreshold.
+     */
+    @java.lang.Override
+    public float getClassificationThreshold() {
+      return classificationThreshold_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * To filter out false positive results and still get variety in matched
+     * natural language inputs for your agent, you can tune the machine learning
+     * classification threshold. If the returned score value is less than the
+     * threshold value, then a no-match event will be triggered. The score values
+     * range from 0.0 (completely uncertain) to 1.0 (completely certain). If set
+     * to 0.0, the default of 0.3 is used.
+     * </pre>
+     *
+     * <code>float classification_threshold = 3;</code>
+     *
+     * @param value The classificationThreshold to set.
+     * @return This builder for chaining.
+     */
+    public Builder setClassificationThreshold(float value) {
+
+      classificationThreshold_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * To filter out false positive results and still get variety in matched
+     * natural language inputs for your agent, you can tune the machine learning
+     * classification threshold. If the returned score value is less than the
+     * threshold value, then a no-match event will be triggered. The score values
+     * range from 0.0 (completely uncertain) to 1.0 (completely certain). If set
+     * to 0.0, the default of 0.3 is used.
+     * </pre>
+     *
+     * <code>float classification_threshold = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearClassificationThreshold() {
+
+      classificationThreshold_ = 0F;
+      onChanged();
+      return this;
+    }
+
+    private int modelTrainingMode_ = 0;
+    /**
+     *
+     *
+     * <pre>
+     * Indicates NLU model training mode.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode model_training_mode = 4;
+     * </code>
+     *
+     * @return The enum numeric value on the wire for modelTrainingMode.
+     */
+    @java.lang.Override
+    public int getModelTrainingModeValue() {
+      return modelTrainingMode_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates NLU model training mode.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode model_training_mode = 4;
+     * </code>
+     *
+     * @param value The enum numeric value on the wire for modelTrainingMode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setModelTrainingModeValue(int value) {
+
+      modelTrainingMode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates NLU model training mode.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode model_training_mode = 4;
+     * </code>
+     *
+     * @return The modelTrainingMode.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode
+        getModelTrainingMode() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode result =
+          com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode.valueOf(
+              modelTrainingMode_);
+      return result == null
+          ? com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode.UNRECOGNIZED
+          : result;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates NLU model training mode.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode model_training_mode = 4;
+     * </code>
+     *
+     * @param value The modelTrainingMode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setModelTrainingMode(
+        com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      modelTrainingMode_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates NLU model training mode.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode model_training_mode = 4;
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearModelTrainingMode() {
+
+      modelTrainingMode_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private boolean enableSpellCorrection_;
+    /**
+     *
+     *
+     * <pre>
+     * Indicates if automatic spell correction is enabled in detect intent
+     * requests.
+     * </pre>
+     *
+     * <code>bool enable_spell_correction = 5 [deprecated = true];</code>
+     *
+     * @return The enableSpellCorrection.
+     */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public boolean getEnableSpellCorrection() {
+      return enableSpellCorrection_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates if automatic spell correction is enabled in detect intent
+     * requests.
+     * </pre>
+     *
+     * <code>bool enable_spell_correction = 5 [deprecated = true];</code>
+     *
+     * @param value The enableSpellCorrection to set.
+     * @return This builder for chaining.
+     */
+    @java.lang.Deprecated
+    public Builder setEnableSpellCorrection(boolean value) {
+
+      enableSpellCorrection_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates if automatic spell correction is enabled in detect intent
+     * requests.
+     * </pre>
+     *
+     * <code>bool enable_spell_correction = 5 [deprecated = true];</code>
+     *
+     * @return This builder for chaining.
+     */
+    @java.lang.Deprecated
+    public Builder clearEnableSpellCorrection() {
+
+      enableSpellCorrection_ = false;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.NluSettings)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.NluSettings)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.NluSettings DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.NluSettings();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.NluSettings getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<NluSettings> PARSER =
+      new com.google.protobuf.AbstractParser<NluSettings>() {
+        @java.lang.Override
+        public NluSettings parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new NluSettings(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<NluSettings> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<NluSettings> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.NluSettings getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/NluSettingsOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/NluSettingsOrBuilder.java
new file mode 100644
index 000000000..108a24e7f
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/NluSettingsOrBuilder.java
@@ -0,0 +1,112 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/flow.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface NluSettingsOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.NluSettings)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Indicates the type of NLU model.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType model_type = 1;</code>
+   *
+   * @return The enum numeric value on the wire for modelType.
+   */
+  int getModelTypeValue();
+  /**
+   *
+   *
+   * <pre>
+   * Indicates the type of NLU model.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType model_type = 1;</code>
+   *
+   * @return The modelType.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelType getModelType();
+
+  /**
+   *
+   *
+   * <pre>
+   * To filter out false positive results and still get variety in matched
+   * natural language inputs for your agent, you can tune the machine learning
+   * classification threshold. If the returned score value is less than the
+   * threshold value, then a no-match event will be triggered. The score values
+   * range from 0.0 (completely uncertain) to 1.0 (completely certain). If set
+   * to 0.0, the default of 0.3 is used.
+   * </pre>
+   *
+   * <code>float classification_threshold = 3;</code>
+   *
+   * @return The classificationThreshold.
+   */
+  float getClassificationThreshold();
+
+  /**
+   *
+   *
+   * <pre>
+   * Indicates NLU model training mode.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode model_training_mode = 4;
+   * </code>
+   *
+   * @return The enum numeric value on the wire for modelTrainingMode.
+   */
+  int getModelTrainingModeValue();
+  /**
+   *
+   *
+   * <pre>
+   * Indicates NLU model training mode.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode model_training_mode = 4;
+   * </code>
+   *
+   * @return The modelTrainingMode.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.NluSettings.ModelTrainingMode getModelTrainingMode();
+
+  /**
+   *
+   *
+   * <pre>
+   * Indicates if automatic spell correction is enabled in detect intent
+   * requests.
+   * </pre>
+   *
+   * <code>bool enable_spell_correction = 5 [deprecated = true];</code>
+   *
+   * @return The enableSpellCorrection.
+   */
+  @java.lang.Deprecated
+  boolean getEnableSpellCorrection();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/OutputAudioConfig.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/OutputAudioConfig.java
new file mode 100644
index 000000000..6b1a530f2
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/OutputAudioConfig.java
@@ -0,0 +1,1048 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/audio_config.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Instructs the speech synthesizer how to generate the output audio content.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig}
+ */
+public final class OutputAudioConfig extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig)
+    OutputAudioConfigOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use OutputAudioConfig.newBuilder() to construct.
+  private OutputAudioConfig(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private OutputAudioConfig() {
+    audioEncoding_ = 0;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new OutputAudioConfig();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private OutputAudioConfig(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 8:
+            {
+              int rawValue = input.readEnum();
+
+              audioEncoding_ = rawValue;
+              break;
+            }
+          case 16:
+            {
+              sampleRateHertz_ = input.readInt32();
+              break;
+            }
+          case 26:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig.Builder subBuilder =
+                  null;
+              if (synthesizeSpeechConfig_ != null) {
+                subBuilder = synthesizeSpeechConfig_.toBuilder();
+              }
+              synthesizeSpeechConfig_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(synthesizeSpeechConfig_);
+                synthesizeSpeechConfig_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_OutputAudioConfig_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_OutputAudioConfig_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.class,
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder.class);
+  }
+
+  public static final int AUDIO_ENCODING_FIELD_NUMBER = 1;
+  private int audioEncoding_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. Audio encoding of the synthesized audio content.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding audio_encoding = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The enum numeric value on the wire for audioEncoding.
+   */
+  @java.lang.Override
+  public int getAudioEncodingValue() {
+    return audioEncoding_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. Audio encoding of the synthesized audio content.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding audio_encoding = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The audioEncoding.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding getAudioEncoding() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding result =
+        com.google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding.valueOf(audioEncoding_);
+    return result == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding.UNRECOGNIZED
+        : result;
+  }
+
+  public static final int SAMPLE_RATE_HERTZ_FIELD_NUMBER = 2;
+  private int sampleRateHertz_;
+  /**
+   *
+   *
+   * <pre>
+   * Optional. The synthesis sample rate (in hertz) for this audio. If not
+   * provided, then the synthesizer will use the default sample rate based on
+   * the audio encoding. If this is different from the voice's natural sample
+   * rate, then the synthesizer will honor this request by converting to the
+   * desired sample rate (which might result in worse audio quality).
+   * </pre>
+   *
+   * <code>int32 sample_rate_hertz = 2;</code>
+   *
+   * @return The sampleRateHertz.
+   */
+  @java.lang.Override
+  public int getSampleRateHertz() {
+    return sampleRateHertz_;
+  }
+
+  public static final int SYNTHESIZE_SPEECH_CONFIG_FIELD_NUMBER = 3;
+  private com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig synthesizeSpeechConfig_;
+  /**
+   *
+   *
+   * <pre>
+   * Optional. Configuration of how speech should be synthesized.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig synthesize_speech_config = 3;
+   * </code>
+   *
+   * @return Whether the synthesizeSpeechConfig field is set.
+   */
+  @java.lang.Override
+  public boolean hasSynthesizeSpeechConfig() {
+    return synthesizeSpeechConfig_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Optional. Configuration of how speech should be synthesized.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig synthesize_speech_config = 3;
+   * </code>
+   *
+   * @return The synthesizeSpeechConfig.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig getSynthesizeSpeechConfig() {
+    return synthesizeSpeechConfig_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig.getDefaultInstance()
+        : synthesizeSpeechConfig_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Optional. Configuration of how speech should be synthesized.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig synthesize_speech_config = 3;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfigOrBuilder
+      getSynthesizeSpeechConfigOrBuilder() {
+    return getSynthesizeSpeechConfig();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (audioEncoding_
+        != com.google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding
+            .OUTPUT_AUDIO_ENCODING_UNSPECIFIED
+            .getNumber()) {
+      output.writeEnum(1, audioEncoding_);
+    }
+    if (sampleRateHertz_ != 0) {
+      output.writeInt32(2, sampleRateHertz_);
+    }
+    if (synthesizeSpeechConfig_ != null) {
+      output.writeMessage(3, getSynthesizeSpeechConfig());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (audioEncoding_
+        != com.google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding
+            .OUTPUT_AUDIO_ENCODING_UNSPECIFIED
+            .getNumber()) {
+      size += com.google.protobuf.CodedOutputStream.computeEnumSize(1, audioEncoding_);
+    }
+    if (sampleRateHertz_ != 0) {
+      size += com.google.protobuf.CodedOutputStream.computeInt32Size(2, sampleRateHertz_);
+    }
+    if (synthesizeSpeechConfig_ != null) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(3, getSynthesizeSpeechConfig());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig other =
+        (com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig) obj;
+
+    if (audioEncoding_ != other.audioEncoding_) return false;
+    if (getSampleRateHertz() != other.getSampleRateHertz()) return false;
+    if (hasSynthesizeSpeechConfig() != other.hasSynthesizeSpeechConfig()) return false;
+    if (hasSynthesizeSpeechConfig()) {
+      if (!getSynthesizeSpeechConfig().equals(other.getSynthesizeSpeechConfig())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + AUDIO_ENCODING_FIELD_NUMBER;
+    hash = (53 * hash) + audioEncoding_;
+    hash = (37 * hash) + SAMPLE_RATE_HERTZ_FIELD_NUMBER;
+    hash = (53 * hash) + getSampleRateHertz();
+    if (hasSynthesizeSpeechConfig()) {
+      hash = (37 * hash) + SYNTHESIZE_SPEECH_CONFIG_FIELD_NUMBER;
+      hash = (53 * hash) + getSynthesizeSpeechConfig().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Instructs the speech synthesizer how to generate the output audio content.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig)
+      com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_OutputAudioConfig_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_OutputAudioConfig_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.class,
+              com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      audioEncoding_ = 0;
+
+      sampleRateHertz_ = 0;
+
+      if (synthesizeSpeechConfigBuilder_ == null) {
+        synthesizeSpeechConfig_ = null;
+      } else {
+        synthesizeSpeechConfig_ = null;
+        synthesizeSpeechConfigBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_OutputAudioConfig_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig build() {
+      com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig result =
+          new com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig(this);
+      result.audioEncoding_ = audioEncoding_;
+      result.sampleRateHertz_ = sampleRateHertz_;
+      if (synthesizeSpeechConfigBuilder_ == null) {
+        result.synthesizeSpeechConfig_ = synthesizeSpeechConfig_;
+      } else {
+        result.synthesizeSpeechConfig_ = synthesizeSpeechConfigBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.getDefaultInstance())
+        return this;
+      if (other.audioEncoding_ != 0) {
+        setAudioEncodingValue(other.getAudioEncodingValue());
+      }
+      if (other.getSampleRateHertz() != 0) {
+        setSampleRateHertz(other.getSampleRateHertz());
+      }
+      if (other.hasSynthesizeSpeechConfig()) {
+        mergeSynthesizeSpeechConfig(other.getSynthesizeSpeechConfig());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int audioEncoding_ = 0;
+    /**
+     *
+     *
+     * <pre>
+     * Required. Audio encoding of the synthesized audio content.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding audio_encoding = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The enum numeric value on the wire for audioEncoding.
+     */
+    @java.lang.Override
+    public int getAudioEncodingValue() {
+      return audioEncoding_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Audio encoding of the synthesized audio content.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding audio_encoding = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @param value The enum numeric value on the wire for audioEncoding to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAudioEncodingValue(int value) {
+
+      audioEncoding_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Audio encoding of the synthesized audio content.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding audio_encoding = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The audioEncoding.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding getAudioEncoding() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding result =
+          com.google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding.valueOf(audioEncoding_);
+      return result == null
+          ? com.google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding.UNRECOGNIZED
+          : result;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Audio encoding of the synthesized audio content.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding audio_encoding = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @param value The audioEncoding to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAudioEncoding(
+        com.google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      audioEncoding_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Audio encoding of the synthesized audio content.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding audio_encoding = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearAudioEncoding() {
+
+      audioEncoding_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private int sampleRateHertz_;
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The synthesis sample rate (in hertz) for this audio. If not
+     * provided, then the synthesizer will use the default sample rate based on
+     * the audio encoding. If this is different from the voice's natural sample
+     * rate, then the synthesizer will honor this request by converting to the
+     * desired sample rate (which might result in worse audio quality).
+     * </pre>
+     *
+     * <code>int32 sample_rate_hertz = 2;</code>
+     *
+     * @return The sampleRateHertz.
+     */
+    @java.lang.Override
+    public int getSampleRateHertz() {
+      return sampleRateHertz_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The synthesis sample rate (in hertz) for this audio. If not
+     * provided, then the synthesizer will use the default sample rate based on
+     * the audio encoding. If this is different from the voice's natural sample
+     * rate, then the synthesizer will honor this request by converting to the
+     * desired sample rate (which might result in worse audio quality).
+     * </pre>
+     *
+     * <code>int32 sample_rate_hertz = 2;</code>
+     *
+     * @param value The sampleRateHertz to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSampleRateHertz(int value) {
+
+      sampleRateHertz_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The synthesis sample rate (in hertz) for this audio. If not
+     * provided, then the synthesizer will use the default sample rate based on
+     * the audio encoding. If this is different from the voice's natural sample
+     * rate, then the synthesizer will honor this request by converting to the
+     * desired sample rate (which might result in worse audio quality).
+     * </pre>
+     *
+     * <code>int32 sample_rate_hertz = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearSampleRateHertz() {
+
+      sampleRateHertz_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig synthesizeSpeechConfig_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig,
+            com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfigOrBuilder>
+        synthesizeSpeechConfigBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Configuration of how speech should be synthesized.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig synthesize_speech_config = 3;
+     * </code>
+     *
+     * @return Whether the synthesizeSpeechConfig field is set.
+     */
+    public boolean hasSynthesizeSpeechConfig() {
+      return synthesizeSpeechConfigBuilder_ != null || synthesizeSpeechConfig_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Configuration of how speech should be synthesized.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig synthesize_speech_config = 3;
+     * </code>
+     *
+     * @return The synthesizeSpeechConfig.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig
+        getSynthesizeSpeechConfig() {
+      if (synthesizeSpeechConfigBuilder_ == null) {
+        return synthesizeSpeechConfig_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig.getDefaultInstance()
+            : synthesizeSpeechConfig_;
+      } else {
+        return synthesizeSpeechConfigBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Configuration of how speech should be synthesized.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig synthesize_speech_config = 3;
+     * </code>
+     */
+    public Builder setSynthesizeSpeechConfig(
+        com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig value) {
+      if (synthesizeSpeechConfigBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        synthesizeSpeechConfig_ = value;
+        onChanged();
+      } else {
+        synthesizeSpeechConfigBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Configuration of how speech should be synthesized.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig synthesize_speech_config = 3;
+     * </code>
+     */
+    public Builder setSynthesizeSpeechConfig(
+        com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig.Builder builderForValue) {
+      if (synthesizeSpeechConfigBuilder_ == null) {
+        synthesizeSpeechConfig_ = builderForValue.build();
+        onChanged();
+      } else {
+        synthesizeSpeechConfigBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Configuration of how speech should be synthesized.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig synthesize_speech_config = 3;
+     * </code>
+     */
+    public Builder mergeSynthesizeSpeechConfig(
+        com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig value) {
+      if (synthesizeSpeechConfigBuilder_ == null) {
+        if (synthesizeSpeechConfig_ != null) {
+          synthesizeSpeechConfig_ =
+              com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig.newBuilder(
+                      synthesizeSpeechConfig_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          synthesizeSpeechConfig_ = value;
+        }
+        onChanged();
+      } else {
+        synthesizeSpeechConfigBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Configuration of how speech should be synthesized.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig synthesize_speech_config = 3;
+     * </code>
+     */
+    public Builder clearSynthesizeSpeechConfig() {
+      if (synthesizeSpeechConfigBuilder_ == null) {
+        synthesizeSpeechConfig_ = null;
+        onChanged();
+      } else {
+        synthesizeSpeechConfig_ = null;
+        synthesizeSpeechConfigBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Configuration of how speech should be synthesized.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig synthesize_speech_config = 3;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig.Builder
+        getSynthesizeSpeechConfigBuilder() {
+
+      onChanged();
+      return getSynthesizeSpeechConfigFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Configuration of how speech should be synthesized.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig synthesize_speech_config = 3;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfigOrBuilder
+        getSynthesizeSpeechConfigOrBuilder() {
+      if (synthesizeSpeechConfigBuilder_ != null) {
+        return synthesizeSpeechConfigBuilder_.getMessageOrBuilder();
+      } else {
+        return synthesizeSpeechConfig_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig.getDefaultInstance()
+            : synthesizeSpeechConfig_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Configuration of how speech should be synthesized.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig synthesize_speech_config = 3;
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig,
+            com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfigOrBuilder>
+        getSynthesizeSpeechConfigFieldBuilder() {
+      if (synthesizeSpeechConfigBuilder_ == null) {
+        synthesizeSpeechConfigBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig,
+                com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfigOrBuilder>(
+                getSynthesizeSpeechConfig(), getParentForChildren(), isClean());
+        synthesizeSpeechConfig_ = null;
+      }
+      return synthesizeSpeechConfigBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<OutputAudioConfig> PARSER =
+      new com.google.protobuf.AbstractParser<OutputAudioConfig>() {
+        @java.lang.Override
+        public OutputAudioConfig parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new OutputAudioConfig(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<OutputAudioConfig> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<OutputAudioConfig> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/OutputAudioConfigOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/OutputAudioConfigOrBuilder.java
new file mode 100644
index 000000000..5a2e3a4bc
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/OutputAudioConfigOrBuilder.java
@@ -0,0 +1,110 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/audio_config.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface OutputAudioConfigOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. Audio encoding of the synthesized audio content.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding audio_encoding = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The enum numeric value on the wire for audioEncoding.
+   */
+  int getAudioEncodingValue();
+  /**
+   *
+   *
+   * <pre>
+   * Required. Audio encoding of the synthesized audio content.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding audio_encoding = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The audioEncoding.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding getAudioEncoding();
+
+  /**
+   *
+   *
+   * <pre>
+   * Optional. The synthesis sample rate (in hertz) for this audio. If not
+   * provided, then the synthesizer will use the default sample rate based on
+   * the audio encoding. If this is different from the voice's natural sample
+   * rate, then the synthesizer will honor this request by converting to the
+   * desired sample rate (which might result in worse audio quality).
+   * </pre>
+   *
+   * <code>int32 sample_rate_hertz = 2;</code>
+   *
+   * @return The sampleRateHertz.
+   */
+  int getSampleRateHertz();
+
+  /**
+   *
+   *
+   * <pre>
+   * Optional. Configuration of how speech should be synthesized.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig synthesize_speech_config = 3;
+   * </code>
+   *
+   * @return Whether the synthesizeSpeechConfig field is set.
+   */
+  boolean hasSynthesizeSpeechConfig();
+  /**
+   *
+   *
+   * <pre>
+   * Optional. Configuration of how speech should be synthesized.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig synthesize_speech_config = 3;
+   * </code>
+   *
+   * @return The synthesizeSpeechConfig.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig getSynthesizeSpeechConfig();
+  /**
+   *
+   *
+   * <pre>
+   * Optional. Configuration of how speech should be synthesized.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig synthesize_speech_config = 3;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfigOrBuilder
+      getSynthesizeSpeechConfigOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/OutputAudioEncoding.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/OutputAudioEncoding.java
new file mode 100644
index 000000000..b3c918f2d
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/OutputAudioEncoding.java
@@ -0,0 +1,255 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/audio_config.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Audio encoding of the output audio format in Text-To-Speech.
+ * </pre>
+ *
+ * Protobuf enum {@code google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding}
+ */
+public enum OutputAudioEncoding implements com.google.protobuf.ProtocolMessageEnum {
+  /**
+   *
+   *
+   * <pre>
+   * Not specified.
+   * </pre>
+   *
+   * <code>OUTPUT_AUDIO_ENCODING_UNSPECIFIED = 0;</code>
+   */
+  OUTPUT_AUDIO_ENCODING_UNSPECIFIED(0),
+  /**
+   *
+   *
+   * <pre>
+   * Uncompressed 16-bit signed little-endian samples (Linear PCM).
+   * Audio content returned as LINEAR16 also contains a WAV header.
+   * </pre>
+   *
+   * <code>OUTPUT_AUDIO_ENCODING_LINEAR_16 = 1;</code>
+   */
+  OUTPUT_AUDIO_ENCODING_LINEAR_16(1),
+  /**
+   *
+   *
+   * <pre>
+   * MP3 audio at 32kbps.
+   * </pre>
+   *
+   * <code>OUTPUT_AUDIO_ENCODING_MP3 = 2;</code>
+   */
+  OUTPUT_AUDIO_ENCODING_MP3(2),
+  /**
+   *
+   *
+   * <pre>
+   * MP3 audio at 64kbps.
+   * </pre>
+   *
+   * <code>OUTPUT_AUDIO_ENCODING_MP3_64_KBPS = 4;</code>
+   */
+  OUTPUT_AUDIO_ENCODING_MP3_64_KBPS(4),
+  /**
+   *
+   *
+   * <pre>
+   * Opus encoded audio wrapped in an ogg container. The result will be a
+   * file which can be played natively on Android, and in browsers (at least
+   * Chrome and Firefox). The quality of the encoding is considerably higher
+   * than MP3 while using approximately the same bitrate.
+   * </pre>
+   *
+   * <code>OUTPUT_AUDIO_ENCODING_OGG_OPUS = 3;</code>
+   */
+  OUTPUT_AUDIO_ENCODING_OGG_OPUS(3),
+  /**
+   *
+   *
+   * <pre>
+   * 8-bit samples that compand 14-bit audio samples using G.711 PCMU/mu-law.
+   * </pre>
+   *
+   * <code>OUTPUT_AUDIO_ENCODING_MULAW = 5;</code>
+   */
+  OUTPUT_AUDIO_ENCODING_MULAW(5),
+  UNRECOGNIZED(-1),
+  ;
+
+  /**
+   *
+   *
+   * <pre>
+   * Not specified.
+   * </pre>
+   *
+   * <code>OUTPUT_AUDIO_ENCODING_UNSPECIFIED = 0;</code>
+   */
+  public static final int OUTPUT_AUDIO_ENCODING_UNSPECIFIED_VALUE = 0;
+  /**
+   *
+   *
+   * <pre>
+   * Uncompressed 16-bit signed little-endian samples (Linear PCM).
+   * Audio content returned as LINEAR16 also contains a WAV header.
+   * </pre>
+   *
+   * <code>OUTPUT_AUDIO_ENCODING_LINEAR_16 = 1;</code>
+   */
+  public static final int OUTPUT_AUDIO_ENCODING_LINEAR_16_VALUE = 1;
+  /**
+   *
+   *
+   * <pre>
+   * MP3 audio at 32kbps.
+   * </pre>
+   *
+   * <code>OUTPUT_AUDIO_ENCODING_MP3 = 2;</code>
+   */
+  public static final int OUTPUT_AUDIO_ENCODING_MP3_VALUE = 2;
+  /**
+   *
+   *
+   * <pre>
+   * MP3 audio at 64kbps.
+   * </pre>
+   *
+   * <code>OUTPUT_AUDIO_ENCODING_MP3_64_KBPS = 4;</code>
+   */
+  public static final int OUTPUT_AUDIO_ENCODING_MP3_64_KBPS_VALUE = 4;
+  /**
+   *
+   *
+   * <pre>
+   * Opus encoded audio wrapped in an ogg container. The result will be a
+   * file which can be played natively on Android, and in browsers (at least
+   * Chrome and Firefox). The quality of the encoding is considerably higher
+   * than MP3 while using approximately the same bitrate.
+   * </pre>
+   *
+   * <code>OUTPUT_AUDIO_ENCODING_OGG_OPUS = 3;</code>
+   */
+  public static final int OUTPUT_AUDIO_ENCODING_OGG_OPUS_VALUE = 3;
+  /**
+   *
+   *
+   * <pre>
+   * 8-bit samples that compand 14-bit audio samples using G.711 PCMU/mu-law.
+   * </pre>
+   *
+   * <code>OUTPUT_AUDIO_ENCODING_MULAW = 5;</code>
+   */
+  public static final int OUTPUT_AUDIO_ENCODING_MULAW_VALUE = 5;
+
+  public final int getNumber() {
+    if (this == UNRECOGNIZED) {
+      throw new java.lang.IllegalArgumentException(
+          "Can't get the number of an unknown enum value.");
+    }
+    return value;
+  }
+
+  /**
+   * @param value The numeric wire value of the corresponding enum entry.
+   * @return The enum associated with the given numeric wire value.
+   * @deprecated Use {@link #forNumber(int)} instead.
+   */
+  @java.lang.Deprecated
+  public static OutputAudioEncoding valueOf(int value) {
+    return forNumber(value);
+  }
+
+  /**
+   * @param value The numeric wire value of the corresponding enum entry.
+   * @return The enum associated with the given numeric wire value.
+   */
+  public static OutputAudioEncoding forNumber(int value) {
+    switch (value) {
+      case 0:
+        return OUTPUT_AUDIO_ENCODING_UNSPECIFIED;
+      case 1:
+        return OUTPUT_AUDIO_ENCODING_LINEAR_16;
+      case 2:
+        return OUTPUT_AUDIO_ENCODING_MP3;
+      case 4:
+        return OUTPUT_AUDIO_ENCODING_MP3_64_KBPS;
+      case 3:
+        return OUTPUT_AUDIO_ENCODING_OGG_OPUS;
+      case 5:
+        return OUTPUT_AUDIO_ENCODING_MULAW;
+      default:
+        return null;
+    }
+  }
+
+  public static com.google.protobuf.Internal.EnumLiteMap<OutputAudioEncoding>
+      internalGetValueMap() {
+    return internalValueMap;
+  }
+
+  private static final com.google.protobuf.Internal.EnumLiteMap<OutputAudioEncoding>
+      internalValueMap =
+          new com.google.protobuf.Internal.EnumLiteMap<OutputAudioEncoding>() {
+            public OutputAudioEncoding findValueByNumber(int number) {
+              return OutputAudioEncoding.forNumber(number);
+            }
+          };
+
+  public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+    if (this == UNRECOGNIZED) {
+      throw new java.lang.IllegalStateException(
+          "Can't get the descriptor of an unrecognized enum value.");
+    }
+    return getDescriptor().getValues().get(ordinal());
+  }
+
+  public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+    return getDescriptor();
+  }
+
+  public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto.getDescriptor()
+        .getEnumTypes()
+        .get(3);
+  }
+
+  private static final OutputAudioEncoding[] VALUES = values();
+
+  public static OutputAudioEncoding valueOf(
+      com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+    if (desc.getType() != getDescriptor()) {
+      throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
+    }
+    if (desc.getIndex() == -1) {
+      return UNRECOGNIZED;
+    }
+    return VALUES[desc.getIndex()];
+  }
+
+  private final int value;
+
+  private OutputAudioEncoding(int value) {
+    this.value = value;
+  }
+
+  // @@protoc_insertion_point(enum_scope:google.cloud.dialogflow.cx.v3beta1.OutputAudioEncoding)
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Page.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Page.java
new file mode 100644
index 000000000..4cb13bdd4
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Page.java
@@ -0,0 +1,3107 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/page.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * A Dialogflow CX conversation (session) can be described and visualized as a
+ * state machine. The states of a CX session are represented by pages.
+ * For each flow, you define many pages, where your combined pages can handle a
+ * complete conversation on the topics the flow is designed for. At any given
+ * moment, exactly one page is the current page, the current page is considered
+ * active, and the flow associated with that page is considered active. Every
+ * flow has a special start page. When a flow initially becomes active, the
+ * start page page becomes the current page. For each conversational turn, the
+ * current page will either stay the same or transition to another page.
+ * You configure each page to collect information from the end-user that is
+ * relevant for the conversational state represented by the page.
+ * For more information, see the
+ * [Page guide](https://cloud.google.com/dialogflow/cx/docs/concept/page).
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Page}
+ */
+public final class Page extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.Page)
+    PageOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use Page.newBuilder() to construct.
+  private Page(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private Page() {
+    name_ = "";
+    displayName_ = "";
+    transitionRouteGroups_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+    transitionRoutes_ = java.util.Collections.emptyList();
+    eventHandlers_ = java.util.Collections.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new Page();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private Page(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              displayName_ = s;
+              break;
+            }
+          case 34:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Form.Builder subBuilder = null;
+              if (form_ != null) {
+                subBuilder = form_.toBuilder();
+              }
+              form_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Form.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(form_);
+                form_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 58:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder subBuilder = null;
+              if (entryFulfillment_ != null) {
+                subBuilder = entryFulfillment_.toBuilder();
+              }
+              entryFulfillment_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(entryFulfillment_);
+                entryFulfillment_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 74:
+            {
+              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
+                transitionRoutes_ =
+                    new java.util.ArrayList<
+                        com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute>();
+                mutable_bitField0_ |= 0x00000002;
+              }
+              transitionRoutes_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.parser(),
+                      extensionRegistry));
+              break;
+            }
+          case 82:
+            {
+              if (!((mutable_bitField0_ & 0x00000004) != 0)) {
+                eventHandlers_ =
+                    new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.EventHandler>();
+                mutable_bitField0_ |= 0x00000004;
+              }
+              eventHandlers_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.EventHandler.parser(),
+                      extensionRegistry));
+              break;
+            }
+          case 90:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                transitionRouteGroups_ = new com.google.protobuf.LazyStringArrayList();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              transitionRouteGroups_.add(s);
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000002) != 0)) {
+        transitionRoutes_ = java.util.Collections.unmodifiableList(transitionRoutes_);
+      }
+      if (((mutable_bitField0_ & 0x00000004) != 0)) {
+        eventHandlers_ = java.util.Collections.unmodifiableList(eventHandlers_);
+      }
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        transitionRouteGroups_ = transitionRouteGroups_.getUnmodifiableView();
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_Page_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_Page_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.Page.class,
+            com.google.cloud.dialogflow.cx.v3beta1.Page.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the page.
+   * Required for the [Pages.UpdatePage][google.cloud.dialogflow.cx.v3beta1.Pages.UpdatePage] method. [Pages.CreatePage][google.cloud.dialogflow.cx.v3beta1.Pages.CreatePage]
+   * populates the name automatically.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the page.
+   * Required for the [Pages.UpdatePage][google.cloud.dialogflow.cx.v3beta1.Pages.UpdatePage] method. [Pages.CreatePage][google.cloud.dialogflow.cx.v3beta1.Pages.CreatePage]
+   * populates the name automatically.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int DISPLAY_NAME_FIELD_NUMBER = 2;
+  private volatile java.lang.Object displayName_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the page, unique within the agent.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The displayName.
+   */
+  @java.lang.Override
+  public java.lang.String getDisplayName() {
+    java.lang.Object ref = displayName_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      displayName_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the page, unique within the agent.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for displayName.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getDisplayNameBytes() {
+    java.lang.Object ref = displayName_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      displayName_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int ENTRY_FULFILLMENT_FIELD_NUMBER = 7;
+  private com.google.cloud.dialogflow.cx.v3beta1.Fulfillment entryFulfillment_;
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment to call when the session is entering the page.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment entry_fulfillment = 7;</code>
+   *
+   * @return Whether the entryFulfillment field is set.
+   */
+  @java.lang.Override
+  public boolean hasEntryFulfillment() {
+    return entryFulfillment_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment to call when the session is entering the page.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment entry_fulfillment = 7;</code>
+   *
+   * @return The entryFulfillment.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment getEntryFulfillment() {
+    return entryFulfillment_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.getDefaultInstance()
+        : entryFulfillment_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment to call when the session is entering the page.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment entry_fulfillment = 7;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder
+      getEntryFulfillmentOrBuilder() {
+    return getEntryFulfillment();
+  }
+
+  public static final int FORM_FIELD_NUMBER = 4;
+  private com.google.cloud.dialogflow.cx.v3beta1.Form form_;
+  /**
+   *
+   *
+   * <pre>
+   * The form associated with the page, used for collecting parameters
+   * relevant to the page.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Form form = 4;</code>
+   *
+   * @return Whether the form field is set.
+   */
+  @java.lang.Override
+  public boolean hasForm() {
+    return form_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The form associated with the page, used for collecting parameters
+   * relevant to the page.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Form form = 4;</code>
+   *
+   * @return The form.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Form getForm() {
+    return form_ == null ? com.google.cloud.dialogflow.cx.v3beta1.Form.getDefaultInstance() : form_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The form associated with the page, used for collecting parameters
+   * relevant to the page.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Form form = 4;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.FormOrBuilder getFormOrBuilder() {
+    return getForm();
+  }
+
+  public static final int TRANSITION_ROUTE_GROUPS_FIELD_NUMBER = 11;
+  private com.google.protobuf.LazyStringList transitionRouteGroups_;
+  /**
+   *
+   *
+   * <pre>
+   * Ordered list of [`TransitionRouteGroups`][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] associated
+   * with the page. Transition route groups must be unique within a page.
+   * *   If multiple transition routes within a page scope refer to the same
+   *     intent, then the precedence order is: page's transition route -&gt; page's
+   *     transition route group -&gt; flow's transition routes.
+   * *   If multiple transition route groups within a page contain the same
+   *     intent, then the first group in the ordered list takes precedence.
+   * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+   * </pre>
+   *
+   * <code>repeated string transition_route_groups = 11 [(.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return A list containing the transitionRouteGroups.
+   */
+  public com.google.protobuf.ProtocolStringList getTransitionRouteGroupsList() {
+    return transitionRouteGroups_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Ordered list of [`TransitionRouteGroups`][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] associated
+   * with the page. Transition route groups must be unique within a page.
+   * *   If multiple transition routes within a page scope refer to the same
+   *     intent, then the precedence order is: page's transition route -&gt; page's
+   *     transition route group -&gt; flow's transition routes.
+   * *   If multiple transition route groups within a page contain the same
+   *     intent, then the first group in the ordered list takes precedence.
+   * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+   * </pre>
+   *
+   * <code>repeated string transition_route_groups = 11 [(.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The count of transitionRouteGroups.
+   */
+  public int getTransitionRouteGroupsCount() {
+    return transitionRouteGroups_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Ordered list of [`TransitionRouteGroups`][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] associated
+   * with the page. Transition route groups must be unique within a page.
+   * *   If multiple transition routes within a page scope refer to the same
+   *     intent, then the precedence order is: page's transition route -&gt; page's
+   *     transition route group -&gt; flow's transition routes.
+   * *   If multiple transition route groups within a page contain the same
+   *     intent, then the first group in the ordered list takes precedence.
+   * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+   * </pre>
+   *
+   * <code>repeated string transition_route_groups = 11 [(.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @param index The index of the element to return.
+   * @return The transitionRouteGroups at the given index.
+   */
+  public java.lang.String getTransitionRouteGroups(int index) {
+    return transitionRouteGroups_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Ordered list of [`TransitionRouteGroups`][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] associated
+   * with the page. Transition route groups must be unique within a page.
+   * *   If multiple transition routes within a page scope refer to the same
+   *     intent, then the precedence order is: page's transition route -&gt; page's
+   *     transition route group -&gt; flow's transition routes.
+   * *   If multiple transition route groups within a page contain the same
+   *     intent, then the first group in the ordered list takes precedence.
+   * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+   * </pre>
+   *
+   * <code>repeated string transition_route_groups = 11 [(.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @param index The index of the value to return.
+   * @return The bytes of the transitionRouteGroups at the given index.
+   */
+  public com.google.protobuf.ByteString getTransitionRouteGroupsBytes(int index) {
+    return transitionRouteGroups_.getByteString(index);
+  }
+
+  public static final int TRANSITION_ROUTES_FIELD_NUMBER = 9;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute> transitionRoutes_;
+  /**
+   *
+   *
+   * <pre>
+   * A list of transitions for the transition rules of this page.
+   * They route the conversation to another page in the same flow, or another
+   * flow.
+   * When we are in a certain page, the TransitionRoutes are evalauted in the
+   * following order:
+   * *   TransitionRoutes defined in the page with intent specified.
+   * *   TransitionRoutes defined in the
+   * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+   * *   TransitionRoutes defined in flow with intent specified.
+   * *   TransitionRoutes defined in the page with only condition specified.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute>
+      getTransitionRoutesList() {
+    return transitionRoutes_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A list of transitions for the transition rules of this page.
+   * They route the conversation to another page in the same flow, or another
+   * flow.
+   * When we are in a certain page, the TransitionRoutes are evalauted in the
+   * following order:
+   * *   TransitionRoutes defined in the page with intent specified.
+   * *   TransitionRoutes defined in the
+   * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+   * *   TransitionRoutes defined in flow with intent specified.
+   * *   TransitionRoutes defined in the page with only condition specified.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder>
+      getTransitionRoutesOrBuilderList() {
+    return transitionRoutes_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A list of transitions for the transition rules of this page.
+   * They route the conversation to another page in the same flow, or another
+   * flow.
+   * When we are in a certain page, the TransitionRoutes are evalauted in the
+   * following order:
+   * *   TransitionRoutes defined in the page with intent specified.
+   * *   TransitionRoutes defined in the
+   * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+   * *   TransitionRoutes defined in flow with intent specified.
+   * *   TransitionRoutes defined in the page with only condition specified.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+   * </code>
+   */
+  @java.lang.Override
+  public int getTransitionRoutesCount() {
+    return transitionRoutes_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A list of transitions for the transition rules of this page.
+   * They route the conversation to another page in the same flow, or another
+   * flow.
+   * When we are in a certain page, the TransitionRoutes are evalauted in the
+   * following order:
+   * *   TransitionRoutes defined in the page with intent specified.
+   * *   TransitionRoutes defined in the
+   * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+   * *   TransitionRoutes defined in flow with intent specified.
+   * *   TransitionRoutes defined in the page with only condition specified.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute getTransitionRoutes(int index) {
+    return transitionRoutes_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A list of transitions for the transition rules of this page.
+   * They route the conversation to another page in the same flow, or another
+   * flow.
+   * When we are in a certain page, the TransitionRoutes are evalauted in the
+   * following order:
+   * *   TransitionRoutes defined in the page with intent specified.
+   * *   TransitionRoutes defined in the
+   * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+   * *   TransitionRoutes defined in flow with intent specified.
+   * *   TransitionRoutes defined in the page with only condition specified.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder
+      getTransitionRoutesOrBuilder(int index) {
+    return transitionRoutes_.get(index);
+  }
+
+  public static final int EVENT_HANDLERS_FIELD_NUMBER = 10;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EventHandler> eventHandlers_;
+  /**
+   *
+   *
+   * <pre>
+   * Handlers associated with the page to handle events such as webhook errors,
+   * no match or no input.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EventHandler>
+      getEventHandlersList() {
+    return eventHandlers_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Handlers associated with the page to handle events such as webhook errors,
+   * no match or no input.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder>
+      getEventHandlersOrBuilderList() {
+    return eventHandlers_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Handlers associated with the page to handle events such as webhook errors,
+   * no match or no input.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+   */
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+  }
+  /**
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+   *
+   * <pre>
+   * Handlers associated with the page to handle events such as webhook errors,
+   * no match or no input.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
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+  public com.google.cloud.dialogflow.cx.v3beta1.EventHandler getEventHandlers(int index) {
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+   *
+   * <pre>
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+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
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+  public com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder getEventHandlersOrBuilder(
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+  public boolean equals(final java.lang.Object obj) {
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+    com.google.cloud.dialogflow.cx.v3beta1.Page other =
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+    if (!getTransitionRouteGroupsList().equals(other.getTransitionRouteGroupsList())) return false;
+    if (!getTransitionRoutesList().equals(other.getTransitionRoutesList())) return false;
+    if (!getEventHandlersList().equals(other.getEventHandlersList())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
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+  public static com.google.cloud.dialogflow.cx.v3beta1.Page parseFrom(java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Page parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Page parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Page parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Page parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Page parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Page parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Page parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Page parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Page parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Page parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Page parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.cx.v3beta1.Page prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A Dialogflow CX conversation (session) can be described and visualized as a
+   * state machine. The states of a CX session are represented by pages.
+   * For each flow, you define many pages, where your combined pages can handle a
+   * complete conversation on the topics the flow is designed for. At any given
+   * moment, exactly one page is the current page, the current page is considered
+   * active, and the flow associated with that page is considered active. Every
+   * flow has a special start page. When a flow initially becomes active, the
+   * start page page becomes the current page. For each conversational turn, the
+   * current page will either stay the same or transition to another page.
+   * You configure each page to collect information from the end-user that is
+   * relevant for the conversational state represented by the page.
+   * For more information, see the
+   * [Page guide](https://cloud.google.com/dialogflow/cx/docs/concept/page).
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Page}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.Page)
+      com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Page_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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+              com.google.cloud.dialogflow.cx.v3beta1.Page.class,
+              com.google.cloud.dialogflow.cx.v3beta1.Page.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.Page.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getTransitionRoutesFieldBuilder();
+        getEventHandlersFieldBuilder();
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+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      displayName_ = "";
+
+      if (entryFulfillmentBuilder_ == null) {
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+      } else {
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+        entryFulfillmentBuilder_ = null;
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+      if (formBuilder_ == null) {
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+      } else {
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+        formBuilder_ = null;
+      }
+      transitionRouteGroups_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000001);
+      if (transitionRoutesBuilder_ == null) {
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+        bitField0_ = (bitField0_ & ~0x00000004);
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+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Page_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Page getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.Page.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Page build() {
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+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Page buildPartial() {
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+        result.eventHandlers_ = eventHandlers_;
+      } else {
+        result.eventHandlers_ = eventHandlersBuilder_.build();
+      }
+      onBuilt();
+      return result;
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+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
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+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
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+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
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+
+    @java.lang.Override
+    public Builder setRepeatedField(
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+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
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+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
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+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.Page) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.Page other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.Page.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getDisplayName().isEmpty()) {
+        displayName_ = other.displayName_;
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+      }
+      if (other.hasEntryFulfillment()) {
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+      if (other.hasForm()) {
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+        if (!other.eventHandlers_.isEmpty()) {
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+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
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+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.Page parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.dialogflow.cx.v3beta1.Page) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the page.
+     * Required for the [Pages.UpdatePage][google.cloud.dialogflow.cx.v3beta1.Pages.UpdatePage] method. [Pages.CreatePage][google.cloud.dialogflow.cx.v3beta1.Pages.CreatePage]
+     * populates the name automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the page.
+     * Required for the [Pages.UpdatePage][google.cloud.dialogflow.cx.v3beta1.Pages.UpdatePage] method. [Pages.CreatePage][google.cloud.dialogflow.cx.v3beta1.Pages.CreatePage]
+     * populates the name automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the page.
+     * Required for the [Pages.UpdatePage][google.cloud.dialogflow.cx.v3beta1.Pages.UpdatePage] method. [Pages.CreatePage][google.cloud.dialogflow.cx.v3beta1.Pages.CreatePage]
+     * populates the name automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the page.
+     * Required for the [Pages.UpdatePage][google.cloud.dialogflow.cx.v3beta1.Pages.UpdatePage] method. [Pages.CreatePage][google.cloud.dialogflow.cx.v3beta1.Pages.CreatePage]
+     * populates the name automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the page.
+     * Required for the [Pages.UpdatePage][google.cloud.dialogflow.cx.v3beta1.Pages.UpdatePage] method. [Pages.CreatePage][google.cloud.dialogflow.cx.v3beta1.Pages.CreatePage]
+     * populates the name automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object displayName_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the page, unique within the agent.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The displayName.
+     */
+    public java.lang.String getDisplayName() {
+      java.lang.Object ref = displayName_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        displayName_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the page, unique within the agent.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for displayName.
+     */
+    public com.google.protobuf.ByteString getDisplayNameBytes() {
+      java.lang.Object ref = displayName_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        displayName_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the page, unique within the agent.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The displayName to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDisplayName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      displayName_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the page, unique within the agent.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearDisplayName() {
+
+      displayName_ = getDefaultInstance().getDisplayName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the page, unique within the agent.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The bytes for displayName to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDisplayNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      displayName_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Fulfillment entryFulfillment_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment,
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder>
+        entryFulfillmentBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the session is entering the page.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment entry_fulfillment = 7;</code>
+     *
+     * @return Whether the entryFulfillment field is set.
+     */
+    public boolean hasEntryFulfillment() {
+      return entryFulfillmentBuilder_ != null || entryFulfillment_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the session is entering the page.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment entry_fulfillment = 7;</code>
+     *
+     * @return The entryFulfillment.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment getEntryFulfillment() {
+      if (entryFulfillmentBuilder_ == null) {
+        return entryFulfillment_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.getDefaultInstance()
+            : entryFulfillment_;
+      } else {
+        return entryFulfillmentBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the session is entering the page.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment entry_fulfillment = 7;</code>
+     */
+    public Builder setEntryFulfillment(com.google.cloud.dialogflow.cx.v3beta1.Fulfillment value) {
+      if (entryFulfillmentBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        entryFulfillment_ = value;
+        onChanged();
+      } else {
+        entryFulfillmentBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the session is entering the page.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment entry_fulfillment = 7;</code>
+     */
+    public Builder setEntryFulfillment(
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder builderForValue) {
+      if (entryFulfillmentBuilder_ == null) {
+        entryFulfillment_ = builderForValue.build();
+        onChanged();
+      } else {
+        entryFulfillmentBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the session is entering the page.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment entry_fulfillment = 7;</code>
+     */
+    public Builder mergeEntryFulfillment(com.google.cloud.dialogflow.cx.v3beta1.Fulfillment value) {
+      if (entryFulfillmentBuilder_ == null) {
+        if (entryFulfillment_ != null) {
+          entryFulfillment_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.newBuilder(entryFulfillment_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          entryFulfillment_ = value;
+        }
+        onChanged();
+      } else {
+        entryFulfillmentBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the session is entering the page.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment entry_fulfillment = 7;</code>
+     */
+    public Builder clearEntryFulfillment() {
+      if (entryFulfillmentBuilder_ == null) {
+        entryFulfillment_ = null;
+        onChanged();
+      } else {
+        entryFulfillment_ = null;
+        entryFulfillmentBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the session is entering the page.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment entry_fulfillment = 7;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder getEntryFulfillmentBuilder() {
+
+      onChanged();
+      return getEntryFulfillmentFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the session is entering the page.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment entry_fulfillment = 7;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder
+        getEntryFulfillmentOrBuilder() {
+      if (entryFulfillmentBuilder_ != null) {
+        return entryFulfillmentBuilder_.getMessageOrBuilder();
+      } else {
+        return entryFulfillment_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.getDefaultInstance()
+            : entryFulfillment_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the session is entering the page.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment entry_fulfillment = 7;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment,
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder>
+        getEntryFulfillmentFieldBuilder() {
+      if (entryFulfillmentBuilder_ == null) {
+        entryFulfillmentBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment,
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder>(
+                getEntryFulfillment(), getParentForChildren(), isClean());
+        entryFulfillment_ = null;
+      }
+      return entryFulfillmentBuilder_;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Form form_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Form,
+            com.google.cloud.dialogflow.cx.v3beta1.Form.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.FormOrBuilder>
+        formBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The form associated with the page, used for collecting parameters
+     * relevant to the page.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Form form = 4;</code>
+     *
+     * @return Whether the form field is set.
+     */
+    public boolean hasForm() {
+      return formBuilder_ != null || form_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The form associated with the page, used for collecting parameters
+     * relevant to the page.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Form form = 4;</code>
+     *
+     * @return The form.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Form getForm() {
+      if (formBuilder_ == null) {
+        return form_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Form.getDefaultInstance()
+            : form_;
+      } else {
+        return formBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The form associated with the page, used for collecting parameters
+     * relevant to the page.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Form form = 4;</code>
+     */
+    public Builder setForm(com.google.cloud.dialogflow.cx.v3beta1.Form value) {
+      if (formBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        form_ = value;
+        onChanged();
+      } else {
+        formBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The form associated with the page, used for collecting parameters
+     * relevant to the page.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Form form = 4;</code>
+     */
+    public Builder setForm(com.google.cloud.dialogflow.cx.v3beta1.Form.Builder builderForValue) {
+      if (formBuilder_ == null) {
+        form_ = builderForValue.build();
+        onChanged();
+      } else {
+        formBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The form associated with the page, used for collecting parameters
+     * relevant to the page.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Form form = 4;</code>
+     */
+    public Builder mergeForm(com.google.cloud.dialogflow.cx.v3beta1.Form value) {
+      if (formBuilder_ == null) {
+        if (form_ != null) {
+          form_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Form.newBuilder(form_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          form_ = value;
+        }
+        onChanged();
+      } else {
+        formBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The form associated with the page, used for collecting parameters
+     * relevant to the page.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Form form = 4;</code>
+     */
+    public Builder clearForm() {
+      if (formBuilder_ == null) {
+        form_ = null;
+        onChanged();
+      } else {
+        form_ = null;
+        formBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The form associated with the page, used for collecting parameters
+     * relevant to the page.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Form form = 4;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Form.Builder getFormBuilder() {
+
+      onChanged();
+      return getFormFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The form associated with the page, used for collecting parameters
+     * relevant to the page.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Form form = 4;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.FormOrBuilder getFormOrBuilder() {
+      if (formBuilder_ != null) {
+        return formBuilder_.getMessageOrBuilder();
+      } else {
+        return form_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Form.getDefaultInstance()
+            : form_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The form associated with the page, used for collecting parameters
+     * relevant to the page.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Form form = 4;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Form,
+            com.google.cloud.dialogflow.cx.v3beta1.Form.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.FormOrBuilder>
+        getFormFieldBuilder() {
+      if (formBuilder_ == null) {
+        formBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Form,
+                com.google.cloud.dialogflow.cx.v3beta1.Form.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.FormOrBuilder>(
+                getForm(), getParentForChildren(), isClean());
+        form_ = null;
+      }
+      return formBuilder_;
+    }
+
+    private com.google.protobuf.LazyStringList transitionRouteGroups_ =
+        com.google.protobuf.LazyStringArrayList.EMPTY;
+
+    private void ensureTransitionRouteGroupsIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        transitionRouteGroups_ =
+            new com.google.protobuf.LazyStringArrayList(transitionRouteGroups_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Ordered list of [`TransitionRouteGroups`][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] associated
+     * with the page. Transition route groups must be unique within a page.
+     * *   If multiple transition routes within a page scope refer to the same
+     *     intent, then the precedence order is: page's transition route -&gt; page's
+     *     transition route group -&gt; flow's transition routes.
+     * *   If multiple transition route groups within a page contain the same
+     *     intent, then the first group in the ordered list takes precedence.
+     * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * repeated string transition_route_groups = 11 [(.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return A list containing the transitionRouteGroups.
+     */
+    public com.google.protobuf.ProtocolStringList getTransitionRouteGroupsList() {
+      return transitionRouteGroups_.getUnmodifiableView();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Ordered list of [`TransitionRouteGroups`][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] associated
+     * with the page. Transition route groups must be unique within a page.
+     * *   If multiple transition routes within a page scope refer to the same
+     *     intent, then the precedence order is: page's transition route -&gt; page's
+     *     transition route group -&gt; flow's transition routes.
+     * *   If multiple transition route groups within a page contain the same
+     *     intent, then the first group in the ordered list takes precedence.
+     * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * repeated string transition_route_groups = 11 [(.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The count of transitionRouteGroups.
+     */
+    public int getTransitionRouteGroupsCount() {
+      return transitionRouteGroups_.size();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Ordered list of [`TransitionRouteGroups`][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] associated
+     * with the page. Transition route groups must be unique within a page.
+     * *   If multiple transition routes within a page scope refer to the same
+     *     intent, then the precedence order is: page's transition route -&gt; page's
+     *     transition route group -&gt; flow's transition routes.
+     * *   If multiple transition route groups within a page contain the same
+     *     intent, then the first group in the ordered list takes precedence.
+     * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * repeated string transition_route_groups = 11 [(.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param index The index of the element to return.
+     * @return The transitionRouteGroups at the given index.
+     */
+    public java.lang.String getTransitionRouteGroups(int index) {
+      return transitionRouteGroups_.get(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Ordered list of [`TransitionRouteGroups`][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] associated
+     * with the page. Transition route groups must be unique within a page.
+     * *   If multiple transition routes within a page scope refer to the same
+     *     intent, then the precedence order is: page's transition route -&gt; page's
+     *     transition route group -&gt; flow's transition routes.
+     * *   If multiple transition route groups within a page contain the same
+     *     intent, then the first group in the ordered list takes precedence.
+     * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * repeated string transition_route_groups = 11 [(.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param index The index of the value to return.
+     * @return The bytes of the transitionRouteGroups at the given index.
+     */
+    public com.google.protobuf.ByteString getTransitionRouteGroupsBytes(int index) {
+      return transitionRouteGroups_.getByteString(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Ordered list of [`TransitionRouteGroups`][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] associated
+     * with the page. Transition route groups must be unique within a page.
+     * *   If multiple transition routes within a page scope refer to the same
+     *     intent, then the precedence order is: page's transition route -&gt; page's
+     *     transition route group -&gt; flow's transition routes.
+     * *   If multiple transition route groups within a page contain the same
+     *     intent, then the first group in the ordered list takes precedence.
+     * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * repeated string transition_route_groups = 11 [(.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param index The index to set the value at.
+     * @param value The transitionRouteGroups to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTransitionRouteGroups(int index, java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      ensureTransitionRouteGroupsIsMutable();
+      transitionRouteGroups_.set(index, value);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Ordered list of [`TransitionRouteGroups`][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] associated
+     * with the page. Transition route groups must be unique within a page.
+     * *   If multiple transition routes within a page scope refer to the same
+     *     intent, then the precedence order is: page's transition route -&gt; page's
+     *     transition route group -&gt; flow's transition routes.
+     * *   If multiple transition route groups within a page contain the same
+     *     intent, then the first group in the ordered list takes precedence.
+     * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * repeated string transition_route_groups = 11 [(.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The transitionRouteGroups to add.
+     * @return This builder for chaining.
+     */
+    public Builder addTransitionRouteGroups(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      ensureTransitionRouteGroupsIsMutable();
+      transitionRouteGroups_.add(value);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Ordered list of [`TransitionRouteGroups`][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] associated
+     * with the page. Transition route groups must be unique within a page.
+     * *   If multiple transition routes within a page scope refer to the same
+     *     intent, then the precedence order is: page's transition route -&gt; page's
+     *     transition route group -&gt; flow's transition routes.
+     * *   If multiple transition route groups within a page contain the same
+     *     intent, then the first group in the ordered list takes precedence.
+     * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * repeated string transition_route_groups = 11 [(.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param values The transitionRouteGroups to add.
+     * @return This builder for chaining.
+     */
+    public Builder addAllTransitionRouteGroups(java.lang.Iterable<java.lang.String> values) {
+      ensureTransitionRouteGroupsIsMutable();
+      com.google.protobuf.AbstractMessageLite.Builder.addAll(values, transitionRouteGroups_);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Ordered list of [`TransitionRouteGroups`][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] associated
+     * with the page. Transition route groups must be unique within a page.
+     * *   If multiple transition routes within a page scope refer to the same
+     *     intent, then the precedence order is: page's transition route -&gt; page's
+     *     transition route group -&gt; flow's transition routes.
+     * *   If multiple transition route groups within a page contain the same
+     *     intent, then the first group in the ordered list takes precedence.
+     * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * repeated string transition_route_groups = 11 [(.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearTransitionRouteGroups() {
+      transitionRouteGroups_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000001);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Ordered list of [`TransitionRouteGroups`][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] associated
+     * with the page. Transition route groups must be unique within a page.
+     * *   If multiple transition routes within a page scope refer to the same
+     *     intent, then the precedence order is: page's transition route -&gt; page's
+     *     transition route group -&gt; flow's transition routes.
+     * *   If multiple transition route groups within a page contain the same
+     *     intent, then the first group in the ordered list takes precedence.
+     * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * repeated string transition_route_groups = 11 [(.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes of the transitionRouteGroups to add.
+     * @return This builder for chaining.
+     */
+    public Builder addTransitionRouteGroupsBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      ensureTransitionRouteGroupsIsMutable();
+      transitionRouteGroups_.add(value);
+      onChanged();
+      return this;
+    }
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute>
+        transitionRoutes_ = java.util.Collections.emptyList();
+
+    private void ensureTransitionRoutesIsMutable() {
+      if (!((bitField0_ & 0x00000002) != 0)) {
+        transitionRoutes_ =
+            new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute>(
+                transitionRoutes_);
+        bitField0_ |= 0x00000002;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder>
+        transitionRoutesBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * A list of transitions for the transition rules of this page.
+     * They route the conversation to another page in the same flow, or another
+     * flow.
+     * When we are in a certain page, the TransitionRoutes are evalauted in the
+     * following order:
+     * *   TransitionRoutes defined in the page with intent specified.
+     * *   TransitionRoutes defined in the
+     * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+     * *   TransitionRoutes defined in flow with intent specified.
+     * *   TransitionRoutes defined in the page with only condition specified.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute>
+        getTransitionRoutesList() {
+      if (transitionRoutesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(transitionRoutes_);
+      } else {
+        return transitionRoutesBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of transitions for the transition rules of this page.
+     * They route the conversation to another page in the same flow, or another
+     * flow.
+     * When we are in a certain page, the TransitionRoutes are evalauted in the
+     * following order:
+     * *   TransitionRoutes defined in the page with intent specified.
+     * *   TransitionRoutes defined in the
+     * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+     * *   TransitionRoutes defined in flow with intent specified.
+     * *   TransitionRoutes defined in the page with only condition specified.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+     * </code>
+     */
+    public int getTransitionRoutesCount() {
+      if (transitionRoutesBuilder_ == null) {
+        return transitionRoutes_.size();
+      } else {
+        return transitionRoutesBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of transitions for the transition rules of this page.
+     * They route the conversation to another page in the same flow, or another
+     * flow.
+     * When we are in a certain page, the TransitionRoutes are evalauted in the
+     * following order:
+     * *   TransitionRoutes defined in the page with intent specified.
+     * *   TransitionRoutes defined in the
+     * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+     * *   TransitionRoutes defined in flow with intent specified.
+     * *   TransitionRoutes defined in the page with only condition specified.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute getTransitionRoutes(int index) {
+      if (transitionRoutesBuilder_ == null) {
+        return transitionRoutes_.get(index);
+      } else {
+        return transitionRoutesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of transitions for the transition rules of this page.
+     * They route the conversation to another page in the same flow, or another
+     * flow.
+     * When we are in a certain page, the TransitionRoutes are evalauted in the
+     * following order:
+     * *   TransitionRoutes defined in the page with intent specified.
+     * *   TransitionRoutes defined in the
+     * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+     * *   TransitionRoutes defined in flow with intent specified.
+     * *   TransitionRoutes defined in the page with only condition specified.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+     * </code>
+     */
+    public Builder setTransitionRoutes(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute value) {
+      if (transitionRoutesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTransitionRoutesIsMutable();
+        transitionRoutes_.set(index, value);
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of transitions for the transition rules of this page.
+     * They route the conversation to another page in the same flow, or another
+     * flow.
+     * When we are in a certain page, the TransitionRoutes are evalauted in the
+     * following order:
+     * *   TransitionRoutes defined in the page with intent specified.
+     * *   TransitionRoutes defined in the
+     * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+     * *   TransitionRoutes defined in flow with intent specified.
+     * *   TransitionRoutes defined in the page with only condition specified.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+     * </code>
+     */
+    public Builder setTransitionRoutes(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder builderForValue) {
+      if (transitionRoutesBuilder_ == null) {
+        ensureTransitionRoutesIsMutable();
+        transitionRoutes_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of transitions for the transition rules of this page.
+     * They route the conversation to another page in the same flow, or another
+     * flow.
+     * When we are in a certain page, the TransitionRoutes are evalauted in the
+     * following order:
+     * *   TransitionRoutes defined in the page with intent specified.
+     * *   TransitionRoutes defined in the
+     * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+     * *   TransitionRoutes defined in flow with intent specified.
+     * *   TransitionRoutes defined in the page with only condition specified.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+     * </code>
+     */
+    public Builder addTransitionRoutes(
+        com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute value) {
+      if (transitionRoutesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTransitionRoutesIsMutable();
+        transitionRoutes_.add(value);
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of transitions for the transition rules of this page.
+     * They route the conversation to another page in the same flow, or another
+     * flow.
+     * When we are in a certain page, the TransitionRoutes are evalauted in the
+     * following order:
+     * *   TransitionRoutes defined in the page with intent specified.
+     * *   TransitionRoutes defined in the
+     * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+     * *   TransitionRoutes defined in flow with intent specified.
+     * *   TransitionRoutes defined in the page with only condition specified.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+     * </code>
+     */
+    public Builder addTransitionRoutes(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute value) {
+      if (transitionRoutesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTransitionRoutesIsMutable();
+        transitionRoutes_.add(index, value);
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of transitions for the transition rules of this page.
+     * They route the conversation to another page in the same flow, or another
+     * flow.
+     * When we are in a certain page, the TransitionRoutes are evalauted in the
+     * following order:
+     * *   TransitionRoutes defined in the page with intent specified.
+     * *   TransitionRoutes defined in the
+     * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+     * *   TransitionRoutes defined in flow with intent specified.
+     * *   TransitionRoutes defined in the page with only condition specified.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+     * </code>
+     */
+    public Builder addTransitionRoutes(
+        com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder builderForValue) {
+      if (transitionRoutesBuilder_ == null) {
+        ensureTransitionRoutesIsMutable();
+        transitionRoutes_.add(builderForValue.build());
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of transitions for the transition rules of this page.
+     * They route the conversation to another page in the same flow, or another
+     * flow.
+     * When we are in a certain page, the TransitionRoutes are evalauted in the
+     * following order:
+     * *   TransitionRoutes defined in the page with intent specified.
+     * *   TransitionRoutes defined in the
+     * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+     * *   TransitionRoutes defined in flow with intent specified.
+     * *   TransitionRoutes defined in the page with only condition specified.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+     * </code>
+     */
+    public Builder addTransitionRoutes(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder builderForValue) {
+      if (transitionRoutesBuilder_ == null) {
+        ensureTransitionRoutesIsMutable();
+        transitionRoutes_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of transitions for the transition rules of this page.
+     * They route the conversation to another page in the same flow, or another
+     * flow.
+     * When we are in a certain page, the TransitionRoutes are evalauted in the
+     * following order:
+     * *   TransitionRoutes defined in the page with intent specified.
+     * *   TransitionRoutes defined in the
+     * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+     * *   TransitionRoutes defined in flow with intent specified.
+     * *   TransitionRoutes defined in the page with only condition specified.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+     * </code>
+     */
+    public Builder addAllTransitionRoutes(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute>
+            values) {
+      if (transitionRoutesBuilder_ == null) {
+        ensureTransitionRoutesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, transitionRoutes_);
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of transitions for the transition rules of this page.
+     * They route the conversation to another page in the same flow, or another
+     * flow.
+     * When we are in a certain page, the TransitionRoutes are evalauted in the
+     * following order:
+     * *   TransitionRoutes defined in the page with intent specified.
+     * *   TransitionRoutes defined in the
+     * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+     * *   TransitionRoutes defined in flow with intent specified.
+     * *   TransitionRoutes defined in the page with only condition specified.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+     * </code>
+     */
+    public Builder clearTransitionRoutes() {
+      if (transitionRoutesBuilder_ == null) {
+        transitionRoutes_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000002);
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of transitions for the transition rules of this page.
+     * They route the conversation to another page in the same flow, or another
+     * flow.
+     * When we are in a certain page, the TransitionRoutes are evalauted in the
+     * following order:
+     * *   TransitionRoutes defined in the page with intent specified.
+     * *   TransitionRoutes defined in the
+     * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+     * *   TransitionRoutes defined in flow with intent specified.
+     * *   TransitionRoutes defined in the page with only condition specified.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+     * </code>
+     */
+    public Builder removeTransitionRoutes(int index) {
+      if (transitionRoutesBuilder_ == null) {
+        ensureTransitionRoutesIsMutable();
+        transitionRoutes_.remove(index);
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of transitions for the transition rules of this page.
+     * They route the conversation to another page in the same flow, or another
+     * flow.
+     * When we are in a certain page, the TransitionRoutes are evalauted in the
+     * following order:
+     * *   TransitionRoutes defined in the page with intent specified.
+     * *   TransitionRoutes defined in the
+     * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+     * *   TransitionRoutes defined in flow with intent specified.
+     * *   TransitionRoutes defined in the page with only condition specified.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder
+        getTransitionRoutesBuilder(int index) {
+      return getTransitionRoutesFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of transitions for the transition rules of this page.
+     * They route the conversation to another page in the same flow, or another
+     * flow.
+     * When we are in a certain page, the TransitionRoutes are evalauted in the
+     * following order:
+     * *   TransitionRoutes defined in the page with intent specified.
+     * *   TransitionRoutes defined in the
+     * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+     * *   TransitionRoutes defined in flow with intent specified.
+     * *   TransitionRoutes defined in the page with only condition specified.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder
+        getTransitionRoutesOrBuilder(int index) {
+      if (transitionRoutesBuilder_ == null) {
+        return transitionRoutes_.get(index);
+      } else {
+        return transitionRoutesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of transitions for the transition rules of this page.
+     * They route the conversation to another page in the same flow, or another
+     * flow.
+     * When we are in a certain page, the TransitionRoutes are evalauted in the
+     * following order:
+     * *   TransitionRoutes defined in the page with intent specified.
+     * *   TransitionRoutes defined in the
+     * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+     * *   TransitionRoutes defined in flow with intent specified.
+     * *   TransitionRoutes defined in the page with only condition specified.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+     * </code>
+     */
+    public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder>
+        getTransitionRoutesOrBuilderList() {
+      if (transitionRoutesBuilder_ != null) {
+        return transitionRoutesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(transitionRoutes_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of transitions for the transition rules of this page.
+     * They route the conversation to another page in the same flow, or another
+     * flow.
+     * When we are in a certain page, the TransitionRoutes are evalauted in the
+     * following order:
+     * *   TransitionRoutes defined in the page with intent specified.
+     * *   TransitionRoutes defined in the
+     * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+     * *   TransitionRoutes defined in flow with intent specified.
+     * *   TransitionRoutes defined in the page with only condition specified.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder
+        addTransitionRoutesBuilder() {
+      return getTransitionRoutesFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of transitions for the transition rules of this page.
+     * They route the conversation to another page in the same flow, or another
+     * flow.
+     * When we are in a certain page, the TransitionRoutes are evalauted in the
+     * following order:
+     * *   TransitionRoutes defined in the page with intent specified.
+     * *   TransitionRoutes defined in the
+     * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+     * *   TransitionRoutes defined in flow with intent specified.
+     * *   TransitionRoutes defined in the page with only condition specified.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder
+        addTransitionRoutesBuilder(int index) {
+      return getTransitionRoutesFieldBuilder()
+          .addBuilder(
+              index, com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A list of transitions for the transition rules of this page.
+     * They route the conversation to another page in the same flow, or another
+     * flow.
+     * When we are in a certain page, the TransitionRoutes are evalauted in the
+     * following order:
+     * *   TransitionRoutes defined in the page with intent specified.
+     * *   TransitionRoutes defined in the
+     * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+     * *   TransitionRoutes defined in flow with intent specified.
+     * *   TransitionRoutes defined in the page with only condition specified.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder>
+        getTransitionRoutesBuilderList() {
+      return getTransitionRoutesFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder>
+        getTransitionRoutesFieldBuilder() {
+      if (transitionRoutesBuilder_ == null) {
+        transitionRoutesBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute,
+                com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder>(
+                transitionRoutes_,
+                ((bitField0_ & 0x00000002) != 0),
+                getParentForChildren(),
+                isClean());
+        transitionRoutes_ = null;
+      }
+      return transitionRoutesBuilder_;
+    }
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EventHandler> eventHandlers_ =
+        java.util.Collections.emptyList();
+
+    private void ensureEventHandlersIsMutable() {
+      if (!((bitField0_ & 0x00000004) != 0)) {
+        eventHandlers_ =
+            new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.EventHandler>(
+                eventHandlers_);
+        bitField0_ |= 0x00000004;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.EventHandler,
+            com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder>
+        eventHandlersBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * Handlers associated with the page to handle events such as webhook errors,
+     * no match or no input.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EventHandler>
+        getEventHandlersList() {
+      if (eventHandlersBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(eventHandlers_);
+      } else {
+        return eventHandlersBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Handlers associated with the page to handle events such as webhook errors,
+     * no match or no input.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public int getEventHandlersCount() {
+      if (eventHandlersBuilder_ == null) {
+        return eventHandlers_.size();
+      } else {
+        return eventHandlersBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Handlers associated with the page to handle events such as webhook errors,
+     * no match or no input.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EventHandler getEventHandlers(int index) {
+      if (eventHandlersBuilder_ == null) {
+        return eventHandlers_.get(index);
+      } else {
+        return eventHandlersBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Handlers associated with the page to handle events such as webhook errors,
+     * no match or no input.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public Builder setEventHandlers(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.EventHandler value) {
+      if (eventHandlersBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEventHandlersIsMutable();
+        eventHandlers_.set(index, value);
+        onChanged();
+      } else {
+        eventHandlersBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Handlers associated with the page to handle events such as webhook errors,
+     * no match or no input.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public Builder setEventHandlers(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder builderForValue) {
+      if (eventHandlersBuilder_ == null) {
+        ensureEventHandlersIsMutable();
+        eventHandlers_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        eventHandlersBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Handlers associated with the page to handle events such as webhook errors,
+     * no match or no input.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public Builder addEventHandlers(com.google.cloud.dialogflow.cx.v3beta1.EventHandler value) {
+      if (eventHandlersBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEventHandlersIsMutable();
+        eventHandlers_.add(value);
+        onChanged();
+      } else {
+        eventHandlersBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Handlers associated with the page to handle events such as webhook errors,
+     * no match or no input.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public Builder addEventHandlers(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.EventHandler value) {
+      if (eventHandlersBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEventHandlersIsMutable();
+        eventHandlers_.add(index, value);
+        onChanged();
+      } else {
+        eventHandlersBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Handlers associated with the page to handle events such as webhook errors,
+     * no match or no input.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public Builder addEventHandlers(
+        com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder builderForValue) {
+      if (eventHandlersBuilder_ == null) {
+        ensureEventHandlersIsMutable();
+        eventHandlers_.add(builderForValue.build());
+        onChanged();
+      } else {
+        eventHandlersBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Handlers associated with the page to handle events such as webhook errors,
+     * no match or no input.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public Builder addEventHandlers(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder builderForValue) {
+      if (eventHandlersBuilder_ == null) {
+        ensureEventHandlersIsMutable();
+        eventHandlers_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        eventHandlersBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Handlers associated with the page to handle events such as webhook errors,
+     * no match or no input.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public Builder addAllEventHandlers(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.EventHandler> values) {
+      if (eventHandlersBuilder_ == null) {
+        ensureEventHandlersIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, eventHandlers_);
+        onChanged();
+      } else {
+        eventHandlersBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Handlers associated with the page to handle events such as webhook errors,
+     * no match or no input.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public Builder clearEventHandlers() {
+      if (eventHandlersBuilder_ == null) {
+        eventHandlers_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000004);
+        onChanged();
+      } else {
+        eventHandlersBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Handlers associated with the page to handle events such as webhook errors,
+     * no match or no input.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public Builder removeEventHandlers(int index) {
+      if (eventHandlersBuilder_ == null) {
+        ensureEventHandlersIsMutable();
+        eventHandlers_.remove(index);
+        onChanged();
+      } else {
+        eventHandlersBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Handlers associated with the page to handle events such as webhook errors,
+     * no match or no input.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder getEventHandlersBuilder(
+        int index) {
+      return getEventHandlersFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Handlers associated with the page to handle events such as webhook errors,
+     * no match or no input.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder getEventHandlersOrBuilder(
+        int index) {
+      if (eventHandlersBuilder_ == null) {
+        return eventHandlers_.get(index);
+      } else {
+        return eventHandlersBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Handlers associated with the page to handle events such as webhook errors,
+     * no match or no input.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder>
+        getEventHandlersOrBuilderList() {
+      if (eventHandlersBuilder_ != null) {
+        return eventHandlersBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(eventHandlers_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Handlers associated with the page to handle events such as webhook errors,
+     * no match or no input.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder addEventHandlersBuilder() {
+      return getEventHandlersFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.cx.v3beta1.EventHandler.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Handlers associated with the page to handle events such as webhook errors,
+     * no match or no input.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder addEventHandlersBuilder(
+        int index) {
+      return getEventHandlersFieldBuilder()
+          .addBuilder(
+              index, com.google.cloud.dialogflow.cx.v3beta1.EventHandler.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Handlers associated with the page to handle events such as webhook errors,
+     * no match or no input.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder>
+        getEventHandlersBuilderList() {
+      return getEventHandlersFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.EventHandler,
+            com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder>
+        getEventHandlersFieldBuilder() {
+      if (eventHandlersBuilder_ == null) {
+        eventHandlersBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.EventHandler,
+                com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder>(
+                eventHandlers_,
+                ((bitField0_ & 0x00000004) != 0),
+                getParentForChildren(),
+                isClean());
+        eventHandlers_ = null;
+      }
+      return eventHandlersBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.Page)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.Page)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.Page DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.Page();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Page getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<Page> PARSER =
+      new com.google.protobuf.AbstractParser<Page>() {
+        @java.lang.Override
+        public Page parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new Page(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<Page> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<Page> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Page getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PageInfo.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PageInfo.java
new file mode 100644
index 000000000..6283429c9
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PageInfo.java
@@ -0,0 +1,3809 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Represents page information communicated to and from the webhook.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.PageInfo}
+ */
+public final class PageInfo extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.PageInfo)
+    PageInfoOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use PageInfo.newBuilder() to construct.
+  private PageInfo(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private PageInfo() {
+    currentPage_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new PageInfo();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private PageInfo(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              currentPage_ = s;
+              break;
+            }
+          case 26:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.Builder subBuilder = null;
+              if (formInfo_ != null) {
+                subBuilder = formInfo_.toBuilder();
+              }
+              formInfo_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(formInfo_);
+                formInfo_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.PageInfo.class,
+            com.google.cloud.dialogflow.cx.v3beta1.PageInfo.Builder.class);
+  }
+
+  public interface FormInfoOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * <pre>
+     * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * The parameters contained in the form. Note that the webhook cannot add
+     * or remove any form parameter.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+     * </code>
+     */
+    java.util.List<com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo>
+        getParameterInfoList();
+    /**
+     *
+     *
+     * <pre>
+     * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * The parameters contained in the form. Note that the webhook cannot add
+     * or remove any form parameter.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+     * </code>
+     */
+    com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo getParameterInfo(
+        int index);
+    /**
+     *
+     *
+     * <pre>
+     * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * The parameters contained in the form. Note that the webhook cannot add
+     * or remove any form parameter.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+     * </code>
+     */
+    int getParameterInfoCount();
+    /**
+     *
+     *
+     * <pre>
+     * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * The parameters contained in the form. Note that the webhook cannot add
+     * or remove any form parameter.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+     * </code>
+     */
+    java.util.List<
+            ? extends
+                com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfoOrBuilder>
+        getParameterInfoOrBuilderList();
+    /**
+     *
+     *
+     * <pre>
+     * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * The parameters contained in the form. Note that the webhook cannot add
+     * or remove any form parameter.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+     * </code>
+     */
+    com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfoOrBuilder
+        getParameterInfoOrBuilder(int index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents form information.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo}
+   */
+  public static final class FormInfo extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo)
+      FormInfoOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use FormInfo.newBuilder() to construct.
+    private FormInfo(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+
+    private FormInfo() {
+      parameterInfo_ = java.util.Collections.emptyList();
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new FormInfo();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private FormInfo(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      int mutable_bitField0_ = 0;
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 18:
+              {
+                if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                  parameterInfo_ =
+                      new java.util.ArrayList<
+                          com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo>();
+                  mutable_bitField0_ |= 0x00000001;
+                }
+                parameterInfo_.add(
+                    input.readMessage(
+                        com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+                            .parser(),
+                        extensionRegistry));
+                break;
+              }
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        if (((mutable_bitField0_ & 0x00000001) != 0)) {
+          parameterInfo_ = java.util.Collections.unmodifiableList(parameterInfo_);
+        }
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_FormInfo_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_FormInfo_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.class,
+              com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.Builder.class);
+    }
+
+    public interface ParameterInfoOrBuilder
+        extends
+        // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo)
+        com.google.protobuf.MessageOrBuilder {
+
+      /**
+       *
+       *
+       * <pre>
+       * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Required for
+       * [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The human-readable name of the parameter, unique within the form. This
+       * field cannot be modified by the webhook.
+       * </pre>
+       *
+       * <code>string display_name = 1;</code>
+       *
+       * @return The displayName.
+       */
+      java.lang.String getDisplayName();
+      /**
+       *
+       *
+       * <pre>
+       * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Required for
+       * [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The human-readable name of the parameter, unique within the form. This
+       * field cannot be modified by the webhook.
+       * </pre>
+       *
+       * <code>string display_name = 1;</code>
+       *
+       * @return The bytes for displayName.
+       */
+      com.google.protobuf.ByteString getDisplayNameBytes();
+
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * Indicates whether the parameter is required. Optional parameters will
+       * not trigger prompts; however, they are filled if the user specifies
+       * them. Required parameters must be filled before form filling concludes.
+       * </pre>
+       *
+       * <code>bool required = 2;</code>
+       *
+       * @return The required.
+       */
+      boolean getRequired();
+
+      /**
+       *
+       *
+       * <pre>
+       * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Required for
+       * [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The state of the parameter. This field can be set
+       * to [INVALID][google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState.INVALID] by
+       * the webhook to invalidate the parameter; other values set by the
+       * webhook will be ignored.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState state = 3;
+       * </code>
+       *
+       * @return The enum numeric value on the wire for state.
+       */
+      int getStateValue();
+      /**
+       *
+       *
+       * <pre>
+       * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Required for
+       * [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The state of the parameter. This field can be set
+       * to [INVALID][google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState.INVALID] by
+       * the webhook to invalidate the parameter; other values set by the
+       * webhook will be ignored.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState state = 3;
+       * </code>
+       *
+       * @return The state.
+       */
+      com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState
+          getState();
+
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The value of the parameter. This field can be set by the webhook to
+       * change the parameter value.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value value = 4;</code>
+       *
+       * @return Whether the value field is set.
+       */
+      boolean hasValue();
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The value of the parameter. This field can be set by the webhook to
+       * change the parameter value.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value value = 4;</code>
+       *
+       * @return The value.
+       */
+      com.google.protobuf.Value getValue();
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The value of the parameter. This field can be set by the webhook to
+       * change the parameter value.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value value = 4;</code>
+       */
+      com.google.protobuf.ValueOrBuilder getValueOrBuilder();
+
+      /**
+       *
+       *
+       * <pre>
+       * Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * Indicates if the parameter value was just collected on the last
+       * conversation turn.
+       * </pre>
+       *
+       * <code>bool just_collected = 5;</code>
+       *
+       * @return The justCollected.
+       */
+      boolean getJustCollected();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents parameter information.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo}
+     */
+    public static final class ParameterInfo extends com.google.protobuf.GeneratedMessageV3
+        implements
+        // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo)
+        ParameterInfoOrBuilder {
+      private static final long serialVersionUID = 0L;
+      // Use ParameterInfo.newBuilder() to construct.
+      private ParameterInfo(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+        super(builder);
+      }
+
+      private ParameterInfo() {
+        displayName_ = "";
+        state_ = 0;
+      }
+
+      @java.lang.Override
+      @SuppressWarnings({"unused"})
+      protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+        return new ParameterInfo();
+      }
+
+      @java.lang.Override
+      public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+        return this.unknownFields;
+      }
+
+      private ParameterInfo(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        this();
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
+        com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+            com.google.protobuf.UnknownFieldSet.newBuilder();
+        try {
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  java.lang.String s = input.readStringRequireUtf8();
+
+                  displayName_ = s;
+                  break;
+                }
+              case 16:
+                {
+                  required_ = input.readBool();
+                  break;
+                }
+              case 24:
+                {
+                  int rawValue = input.readEnum();
+
+                  state_ = rawValue;
+                  break;
+                }
+              case 34:
+                {
+                  com.google.protobuf.Value.Builder subBuilder = null;
+                  if (value_ != null) {
+                    subBuilder = value_.toBuilder();
+                  }
+                  value_ = input.readMessage(com.google.protobuf.Value.parser(), extensionRegistry);
+                  if (subBuilder != null) {
+                    subBuilder.mergeFrom(value_);
+                    value_ = subBuilder.buildPartial();
+                  }
+
+                  break;
+                }
+              case 40:
+                {
+                  justCollected_ = input.readBool();
+                  break;
+                }
+              default:
+                {
+                  if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                    done = true;
+                  }
+                  break;
+                }
+            }
+          }
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(this);
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(this);
+        } finally {
+          this.unknownFields = unknownFields.build();
+          makeExtensionsImmutable();
+        }
+      }
+
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_FormInfo_ParameterInfo_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_FormInfo_ParameterInfo_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.class,
+                com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.Builder
+                    .class);
+      }
+
+      /**
+       *
+       *
+       * <pre>
+       * Represents the state of a parameter.
+       * </pre>
+       *
+       * Protobuf enum {@code
+       * google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState}
+       */
+      public enum ParameterState implements com.google.protobuf.ProtocolMessageEnum {
+        /**
+         *
+         *
+         * <pre>
+         * Not specified. This value should be never used.
+         * </pre>
+         *
+         * <code>PARAMETER_STATE_UNSPECIFIED = 0;</code>
+         */
+        PARAMETER_STATE_UNSPECIFIED(0),
+        /**
+         *
+         *
+         * <pre>
+         * Indicates that the parameter does not have a value.
+         * </pre>
+         *
+         * <code>EMPTY = 1;</code>
+         */
+        EMPTY(1),
+        /**
+         *
+         *
+         * <pre>
+         * Indicates that the parameter value is invalid. This field can be used
+         * by the webhook to invalidate the parameter and ask the server to
+         * collect it from the user again.
+         * </pre>
+         *
+         * <code>INVALID = 2;</code>
+         */
+        INVALID(2),
+        /**
+         *
+         *
+         * <pre>
+         * Indicates that the parameter has a value.
+         * </pre>
+         *
+         * <code>FILLED = 3;</code>
+         */
+        FILLED(3),
+        UNRECOGNIZED(-1),
+        ;
+
+        /**
+         *
+         *
+         * <pre>
+         * Not specified. This value should be never used.
+         * </pre>
+         *
+         * <code>PARAMETER_STATE_UNSPECIFIED = 0;</code>
+         */
+        public static final int PARAMETER_STATE_UNSPECIFIED_VALUE = 0;
+        /**
+         *
+         *
+         * <pre>
+         * Indicates that the parameter does not have a value.
+         * </pre>
+         *
+         * <code>EMPTY = 1;</code>
+         */
+        public static final int EMPTY_VALUE = 1;
+        /**
+         *
+         *
+         * <pre>
+         * Indicates that the parameter value is invalid. This field can be used
+         * by the webhook to invalidate the parameter and ask the server to
+         * collect it from the user again.
+         * </pre>
+         *
+         * <code>INVALID = 2;</code>
+         */
+        public static final int INVALID_VALUE = 2;
+        /**
+         *
+         *
+         * <pre>
+         * Indicates that the parameter has a value.
+         * </pre>
+         *
+         * <code>FILLED = 3;</code>
+         */
+        public static final int FILLED_VALUE = 3;
+
+        public final int getNumber() {
+          if (this == UNRECOGNIZED) {
+            throw new java.lang.IllegalArgumentException(
+                "Can't get the number of an unknown enum value.");
+          }
+          return value;
+        }
+
+        /**
+         * @param value The numeric wire value of the corresponding enum entry.
+         * @return The enum associated with the given numeric wire value.
+         * @deprecated Use {@link #forNumber(int)} instead.
+         */
+        @java.lang.Deprecated
+        public static ParameterState valueOf(int value) {
+          return forNumber(value);
+        }
+
+        /**
+         * @param value The numeric wire value of the corresponding enum entry.
+         * @return The enum associated with the given numeric wire value.
+         */
+        public static ParameterState forNumber(int value) {
+          switch (value) {
+            case 0:
+              return PARAMETER_STATE_UNSPECIFIED;
+            case 1:
+              return EMPTY;
+            case 2:
+              return INVALID;
+            case 3:
+              return FILLED;
+            default:
+              return null;
+          }
+        }
+
+        public static com.google.protobuf.Internal.EnumLiteMap<ParameterState>
+            internalGetValueMap() {
+          return internalValueMap;
+        }
+
+        private static final com.google.protobuf.Internal.EnumLiteMap<ParameterState>
+            internalValueMap =
+                new com.google.protobuf.Internal.EnumLiteMap<ParameterState>() {
+                  public ParameterState findValueByNumber(int number) {
+                    return ParameterState.forNumber(number);
+                  }
+                };
+
+        public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+          if (this == UNRECOGNIZED) {
+            throw new java.lang.IllegalStateException(
+                "Can't get the descriptor of an unrecognized enum value.");
+          }
+          return getDescriptor().getValues().get(ordinal());
+        }
+
+        public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+          return getDescriptor();
+        }
+
+        public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+          return com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+              .getDescriptor()
+              .getEnumTypes()
+              .get(0);
+        }
+
+        private static final ParameterState[] VALUES = values();
+
+        public static ParameterState valueOf(
+            com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+          if (desc.getType() != getDescriptor()) {
+            throw new java.lang.IllegalArgumentException(
+                "EnumValueDescriptor is not for this type.");
+          }
+          if (desc.getIndex() == -1) {
+            return UNRECOGNIZED;
+          }
+          return VALUES[desc.getIndex()];
+        }
+
+        private final int value;
+
+        private ParameterState(int value) {
+          this.value = value;
+        }
+
+        // @@protoc_insertion_point(enum_scope:google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState)
+      }
+
+      public static final int DISPLAY_NAME_FIELD_NUMBER = 1;
+      private volatile java.lang.Object displayName_;
+      /**
+       *
+       *
+       * <pre>
+       * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Required for
+       * [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The human-readable name of the parameter, unique within the form. This
+       * field cannot be modified by the webhook.
+       * </pre>
+       *
+       * <code>string display_name = 1;</code>
+       *
+       * @return The displayName.
+       */
+      @java.lang.Override
+      public java.lang.String getDisplayName() {
+        java.lang.Object ref = displayName_;
+        if (ref instanceof java.lang.String) {
+          return (java.lang.String) ref;
+        } else {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          displayName_ = s;
+          return s;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Required for
+       * [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The human-readable name of the parameter, unique within the form. This
+       * field cannot be modified by the webhook.
+       * </pre>
+       *
+       * <code>string display_name = 1;</code>
+       *
+       * @return The bytes for displayName.
+       */
+      @java.lang.Override
+      public com.google.protobuf.ByteString getDisplayNameBytes() {
+        java.lang.Object ref = displayName_;
+        if (ref instanceof java.lang.String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          displayName_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+
+      public static final int REQUIRED_FIELD_NUMBER = 2;
+      private boolean required_;
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * Indicates whether the parameter is required. Optional parameters will
+       * not trigger prompts; however, they are filled if the user specifies
+       * them. Required parameters must be filled before form filling concludes.
+       * </pre>
+       *
+       * <code>bool required = 2;</code>
+       *
+       * @return The required.
+       */
+      @java.lang.Override
+      public boolean getRequired() {
+        return required_;
+      }
+
+      public static final int STATE_FIELD_NUMBER = 3;
+      private int state_;
+      /**
+       *
+       *
+       * <pre>
+       * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Required for
+       * [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The state of the parameter. This field can be set
+       * to [INVALID][google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState.INVALID] by
+       * the webhook to invalidate the parameter; other values set by the
+       * webhook will be ignored.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState state = 3;
+       * </code>
+       *
+       * @return The enum numeric value on the wire for state.
+       */
+      @java.lang.Override
+      public int getStateValue() {
+        return state_;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Required for
+       * [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The state of the parameter. This field can be set
+       * to [INVALID][google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState.INVALID] by
+       * the webhook to invalidate the parameter; other values set by the
+       * webhook will be ignored.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState state = 3;
+       * </code>
+       *
+       * @return The state.
+       */
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState
+          getState() {
+        @SuppressWarnings("deprecation")
+        com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState
+            result =
+                com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+                    .ParameterState.valueOf(state_);
+        return result == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState
+                .UNRECOGNIZED
+            : result;
+      }
+
+      public static final int VALUE_FIELD_NUMBER = 4;
+      private com.google.protobuf.Value value_;
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The value of the parameter. This field can be set by the webhook to
+       * change the parameter value.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value value = 4;</code>
+       *
+       * @return Whether the value field is set.
+       */
+      @java.lang.Override
+      public boolean hasValue() {
+        return value_ != null;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The value of the parameter. This field can be set by the webhook to
+       * change the parameter value.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value value = 4;</code>
+       *
+       * @return The value.
+       */
+      @java.lang.Override
+      public com.google.protobuf.Value getValue() {
+        return value_ == null ? com.google.protobuf.Value.getDefaultInstance() : value_;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The value of the parameter. This field can be set by the webhook to
+       * change the parameter value.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value value = 4;</code>
+       */
+      @java.lang.Override
+      public com.google.protobuf.ValueOrBuilder getValueOrBuilder() {
+        return getValue();
+      }
+
+      public static final int JUST_COLLECTED_FIELD_NUMBER = 5;
+      private boolean justCollected_;
+      /**
+       *
+       *
+       * <pre>
+       * Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * Indicates if the parameter value was just collected on the last
+       * conversation turn.
+       * </pre>
+       *
+       * <code>bool just_collected = 5;</code>
+       *
+       * @return The justCollected.
+       */
+      @java.lang.Override
+      public boolean getJustCollected() {
+        return justCollected_;
+      }
+
+      private byte memoizedIsInitialized = -1;
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        byte isInitialized = memoizedIsInitialized;
+        if (isInitialized == 1) return true;
+        if (isInitialized == 0) return false;
+
+        memoizedIsInitialized = 1;
+        return true;
+      }
+
+      @java.lang.Override
+      public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+        if (!getDisplayNameBytes().isEmpty()) {
+          com.google.protobuf.GeneratedMessageV3.writeString(output, 1, displayName_);
+        }
+        if (required_ != false) {
+          output.writeBool(2, required_);
+        }
+        if (state_
+            != com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState
+                .PARAMETER_STATE_UNSPECIFIED
+                .getNumber()) {
+          output.writeEnum(3, state_);
+        }
+        if (value_ != null) {
+          output.writeMessage(4, getValue());
+        }
+        if (justCollected_ != false) {
+          output.writeBool(5, justCollected_);
+        }
+        unknownFields.writeTo(output);
+      }
+
+      @java.lang.Override
+      public int getSerializedSize() {
+        int size = memoizedSize;
+        if (size != -1) return size;
+
+        size = 0;
+        if (!getDisplayNameBytes().isEmpty()) {
+          size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, displayName_);
+        }
+        if (required_ != false) {
+          size += com.google.protobuf.CodedOutputStream.computeBoolSize(2, required_);
+        }
+        if (state_
+            != com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState
+                .PARAMETER_STATE_UNSPECIFIED
+                .getNumber()) {
+          size += com.google.protobuf.CodedOutputStream.computeEnumSize(3, state_);
+        }
+        if (value_ != null) {
+          size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, getValue());
+        }
+        if (justCollected_ != false) {
+          size += com.google.protobuf.CodedOutputStream.computeBoolSize(5, justCollected_);
+        }
+        size += unknownFields.getSerializedSize();
+        memoizedSize = size;
+        return size;
+      }
+
+      @java.lang.Override
+      public boolean equals(final java.lang.Object obj) {
+        if (obj == this) {
+          return true;
+        }
+        if (!(obj
+            instanceof com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo)) {
+          return super.equals(obj);
+        }
+        com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo other =
+            (com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo) obj;
+
+        if (!getDisplayName().equals(other.getDisplayName())) return false;
+        if (getRequired() != other.getRequired()) return false;
+        if (state_ != other.state_) return false;
+        if (hasValue() != other.hasValue()) return false;
+        if (hasValue()) {
+          if (!getValue().equals(other.getValue())) return false;
+        }
+        if (getJustCollected() != other.getJustCollected()) return false;
+        if (!unknownFields.equals(other.unknownFields)) return false;
+        return true;
+      }
+
+      @java.lang.Override
+      public int hashCode() {
+        if (memoizedHashCode != 0) {
+          return memoizedHashCode;
+        }
+        int hash = 41;
+        hash = (19 * hash) + getDescriptor().hashCode();
+        hash = (37 * hash) + DISPLAY_NAME_FIELD_NUMBER;
+        hash = (53 * hash) + getDisplayName().hashCode();
+        hash = (37 * hash) + REQUIRED_FIELD_NUMBER;
+        hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getRequired());
+        hash = (37 * hash) + STATE_FIELD_NUMBER;
+        hash = (53 * hash) + state_;
+        if (hasValue()) {
+          hash = (37 * hash) + VALUE_FIELD_NUMBER;
+          hash = (53 * hash) + getValue().hashCode();
+        }
+        hash = (37 * hash) + JUST_COLLECTED_FIELD_NUMBER;
+        hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getJustCollected());
+        hash = (29 * hash) + unknownFields.hashCode();
+        memoizedHashCode = hash;
+        return hash;
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+          parseFrom(java.nio.ByteBuffer data)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+          parseFrom(
+              java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+          parseFrom(com.google.protobuf.ByteString data)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+          parseFrom(
+              com.google.protobuf.ByteString data,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+          parseFrom(byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+          parseFrom(byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+          parseFrom(java.io.InputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+          parseFrom(
+              java.io.InputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+          parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+          parseDelimitedFrom(
+              java.io.InputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+          parseFrom(com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+          parseFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      @java.lang.Override
+      public Builder newBuilderForType() {
+        return newBuilder();
+      }
+
+      public static Builder newBuilder() {
+        return DEFAULT_INSTANCE.toBuilder();
+      }
+
+      public static Builder newBuilder(
+          com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo prototype) {
+        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+      }
+
+      @java.lang.Override
+      public Builder toBuilder() {
+        return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+      }
+
+      @java.lang.Override
+      protected Builder newBuilderForType(
+          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        Builder builder = new Builder(parent);
+        return builder;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Represents parameter information.
+       * </pre>
+       *
+       * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo}
+       */
+      public static final class Builder
+          extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+          implements
+          // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo)
+          com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfoOrBuilder {
+        public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+          return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+              .internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_FormInfo_ParameterInfo_descriptor;
+        }
+
+        @java.lang.Override
+        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+            internalGetFieldAccessorTable() {
+          return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+              .internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_FormInfo_ParameterInfo_fieldAccessorTable
+              .ensureFieldAccessorsInitialized(
+                  com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.class,
+                  com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.Builder
+                      .class);
+        }
+
+        // Construct using
+        // com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.newBuilder()
+        private Builder() {
+          maybeForceBuilderInitialization();
+        }
+
+        private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+          super(parent);
+          maybeForceBuilderInitialization();
+        }
+
+        private void maybeForceBuilderInitialization() {
+          if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+        }
+
+        @java.lang.Override
+        public Builder clear() {
+          super.clear();
+          displayName_ = "";
+
+          required_ = false;
+
+          state_ = 0;
+
+          if (valueBuilder_ == null) {
+            value_ = null;
+          } else {
+            value_ = null;
+            valueBuilder_ = null;
+          }
+          justCollected_ = false;
+
+          return this;
+        }
+
+        @java.lang.Override
+        public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+          return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+              .internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_FormInfo_ParameterInfo_descriptor;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+            getDefaultInstanceForType() {
+          return com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+              .getDefaultInstance();
+        }
+
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo build() {
+          com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo result =
+              buildPartial();
+          if (!result.isInitialized()) {
+            throw newUninitializedMessageException(result);
+          }
+          return result;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+            buildPartial() {
+          com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo result =
+              new com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo(this);
+          result.displayName_ = displayName_;
+          result.required_ = required_;
+          result.state_ = state_;
+          if (valueBuilder_ == null) {
+            result.value_ = value_;
+          } else {
+            result.value_ = valueBuilder_.build();
+          }
+          result.justCollected_ = justCollected_;
+          onBuilt();
+          return result;
+        }
+
+        @java.lang.Override
+        public Builder clone() {
+          return super.clone();
+        }
+
+        @java.lang.Override
+        public Builder setField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.setField(field, value);
+        }
+
+        @java.lang.Override
+        public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+          return super.clearField(field);
+        }
+
+        @java.lang.Override
+        public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+          return super.clearOneof(oneof);
+        }
+
+        @java.lang.Override
+        public Builder setRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field,
+            int index,
+            java.lang.Object value) {
+          return super.setRepeatedField(field, index, value);
+        }
+
+        @java.lang.Override
+        public Builder addRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.addRepeatedField(field, value);
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(com.google.protobuf.Message other) {
+          if (other
+              instanceof com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo) {
+            return mergeFrom(
+                (com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo) other);
+          } else {
+            super.mergeFrom(other);
+            return this;
+          }
+        }
+
+        public Builder mergeFrom(
+            com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo other) {
+          if (other
+              == com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+                  .getDefaultInstance()) return this;
+          if (!other.getDisplayName().isEmpty()) {
+            displayName_ = other.displayName_;
+            onChanged();
+          }
+          if (other.getRequired() != false) {
+            setRequired(other.getRequired());
+          }
+          if (other.state_ != 0) {
+            setStateValue(other.getStateValue());
+          }
+          if (other.hasValue()) {
+            mergeValue(other.getValue());
+          }
+          if (other.getJustCollected() != false) {
+            setJustCollected(other.getJustCollected());
+          }
+          this.mergeUnknownFields(other.unknownFields);
+          onChanged();
+          return this;
+        }
+
+        @java.lang.Override
+        public final boolean isInitialized() {
+          return true;
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+          com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parsedMessage =
+              null;
+          try {
+            parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            parsedMessage =
+                (com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo)
+                    e.getUnfinishedMessage();
+            throw e.unwrapIOException();
+          } finally {
+            if (parsedMessage != null) {
+              mergeFrom(parsedMessage);
+            }
+          }
+          return this;
+        }
+
+        private java.lang.Object displayName_ = "";
+        /**
+         *
+         *
+         * <pre>
+         * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Required for
+         * [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+         * The human-readable name of the parameter, unique within the form. This
+         * field cannot be modified by the webhook.
+         * </pre>
+         *
+         * <code>string display_name = 1;</code>
+         *
+         * @return The displayName.
+         */
+        public java.lang.String getDisplayName() {
+          java.lang.Object ref = displayName_;
+          if (!(ref instanceof java.lang.String)) {
+            com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+            java.lang.String s = bs.toStringUtf8();
+            displayName_ = s;
+            return s;
+          } else {
+            return (java.lang.String) ref;
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Required for
+         * [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+         * The human-readable name of the parameter, unique within the form. This
+         * field cannot be modified by the webhook.
+         * </pre>
+         *
+         * <code>string display_name = 1;</code>
+         *
+         * @return The bytes for displayName.
+         */
+        public com.google.protobuf.ByteString getDisplayNameBytes() {
+          java.lang.Object ref = displayName_;
+          if (ref instanceof String) {
+            com.google.protobuf.ByteString b =
+                com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+            displayName_ = b;
+            return b;
+          } else {
+            return (com.google.protobuf.ByteString) ref;
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Required for
+         * [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+         * The human-readable name of the parameter, unique within the form. This
+         * field cannot be modified by the webhook.
+         * </pre>
+         *
+         * <code>string display_name = 1;</code>
+         *
+         * @param value The displayName to set.
+         * @return This builder for chaining.
+         */
+        public Builder setDisplayName(java.lang.String value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+
+          displayName_ = value;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Required for
+         * [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+         * The human-readable name of the parameter, unique within the form. This
+         * field cannot be modified by the webhook.
+         * </pre>
+         *
+         * <code>string display_name = 1;</code>
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearDisplayName() {
+
+          displayName_ = getDefaultInstance().getDisplayName();
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Required for
+         * [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+         * The human-readable name of the parameter, unique within the form. This
+         * field cannot be modified by the webhook.
+         * </pre>
+         *
+         * <code>string display_name = 1;</code>
+         *
+         * @param value The bytes for displayName to set.
+         * @return This builder for chaining.
+         */
+        public Builder setDisplayNameBytes(com.google.protobuf.ByteString value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          checkByteStringIsUtf8(value);
+
+          displayName_ = value;
+          onChanged();
+          return this;
+        }
+
+        private boolean required_;
+        /**
+         *
+         *
+         * <pre>
+         * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+         * Indicates whether the parameter is required. Optional parameters will
+         * not trigger prompts; however, they are filled if the user specifies
+         * them. Required parameters must be filled before form filling concludes.
+         * </pre>
+         *
+         * <code>bool required = 2;</code>
+         *
+         * @return The required.
+         */
+        @java.lang.Override
+        public boolean getRequired() {
+          return required_;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+         * Indicates whether the parameter is required. Optional parameters will
+         * not trigger prompts; however, they are filled if the user specifies
+         * them. Required parameters must be filled before form filling concludes.
+         * </pre>
+         *
+         * <code>bool required = 2;</code>
+         *
+         * @param value The required to set.
+         * @return This builder for chaining.
+         */
+        public Builder setRequired(boolean value) {
+
+          required_ = value;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+         * Indicates whether the parameter is required. Optional parameters will
+         * not trigger prompts; however, they are filled if the user specifies
+         * them. Required parameters must be filled before form filling concludes.
+         * </pre>
+         *
+         * <code>bool required = 2;</code>
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearRequired() {
+
+          required_ = false;
+          onChanged();
+          return this;
+        }
+
+        private int state_ = 0;
+        /**
+         *
+         *
+         * <pre>
+         * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Required for
+         * [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The state of the parameter. This field can be set
+         * to [INVALID][google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState.INVALID] by
+         * the webhook to invalidate the parameter; other values set by the
+         * webhook will be ignored.
+         * </pre>
+         *
+         * <code>
+         * .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState state = 3;
+         * </code>
+         *
+         * @return The enum numeric value on the wire for state.
+         */
+        @java.lang.Override
+        public int getStateValue() {
+          return state_;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Required for
+         * [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The state of the parameter. This field can be set
+         * to [INVALID][google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState.INVALID] by
+         * the webhook to invalidate the parameter; other values set by the
+         * webhook will be ignored.
+         * </pre>
+         *
+         * <code>
+         * .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState state = 3;
+         * </code>
+         *
+         * @param value The enum numeric value on the wire for state to set.
+         * @return This builder for chaining.
+         */
+        public Builder setStateValue(int value) {
+
+          state_ = value;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Required for
+         * [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The state of the parameter. This field can be set
+         * to [INVALID][google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState.INVALID] by
+         * the webhook to invalidate the parameter; other values set by the
+         * webhook will be ignored.
+         * </pre>
+         *
+         * <code>
+         * .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState state = 3;
+         * </code>
+         *
+         * @return The state.
+         */
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState
+            getState() {
+          @SuppressWarnings("deprecation")
+          com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState
+              result =
+                  com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+                      .ParameterState.valueOf(state_);
+          return result == null
+              ? com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+                  .ParameterState.UNRECOGNIZED
+              : result;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Required for
+         * [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The state of the parameter. This field can be set
+         * to [INVALID][google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState.INVALID] by
+         * the webhook to invalidate the parameter; other values set by the
+         * webhook will be ignored.
+         * </pre>
+         *
+         * <code>
+         * .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState state = 3;
+         * </code>
+         *
+         * @param value The state to set.
+         * @return This builder for chaining.
+         */
+        public Builder setState(
+            com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState
+                value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+
+          state_ = value.getNumber();
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Required for
+         * [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The state of the parameter. This field can be set
+         * to [INVALID][google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState.INVALID] by
+         * the webhook to invalidate the parameter; other values set by the
+         * webhook will be ignored.
+         * </pre>
+         *
+         * <code>
+         * .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState state = 3;
+         * </code>
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearState() {
+
+          state_ = 0;
+          onChanged();
+          return this;
+        }
+
+        private com.google.protobuf.Value value_;
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.Value,
+                com.google.protobuf.Value.Builder,
+                com.google.protobuf.ValueOrBuilder>
+            valueBuilder_;
+        /**
+         *
+         *
+         * <pre>
+         * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+         * The value of the parameter. This field can be set by the webhook to
+         * change the parameter value.
+         * </pre>
+         *
+         * <code>.google.protobuf.Value value = 4;</code>
+         *
+         * @return Whether the value field is set.
+         */
+        public boolean hasValue() {
+          return valueBuilder_ != null || value_ != null;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+         * The value of the parameter. This field can be set by the webhook to
+         * change the parameter value.
+         * </pre>
+         *
+         * <code>.google.protobuf.Value value = 4;</code>
+         *
+         * @return The value.
+         */
+        public com.google.protobuf.Value getValue() {
+          if (valueBuilder_ == null) {
+            return value_ == null ? com.google.protobuf.Value.getDefaultInstance() : value_;
+          } else {
+            return valueBuilder_.getMessage();
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+         * The value of the parameter. This field can be set by the webhook to
+         * change the parameter value.
+         * </pre>
+         *
+         * <code>.google.protobuf.Value value = 4;</code>
+         */
+        public Builder setValue(com.google.protobuf.Value value) {
+          if (valueBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            value_ = value;
+            onChanged();
+          } else {
+            valueBuilder_.setMessage(value);
+          }
+
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+         * The value of the parameter. This field can be set by the webhook to
+         * change the parameter value.
+         * </pre>
+         *
+         * <code>.google.protobuf.Value value = 4;</code>
+         */
+        public Builder setValue(com.google.protobuf.Value.Builder builderForValue) {
+          if (valueBuilder_ == null) {
+            value_ = builderForValue.build();
+            onChanged();
+          } else {
+            valueBuilder_.setMessage(builderForValue.build());
+          }
+
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+         * The value of the parameter. This field can be set by the webhook to
+         * change the parameter value.
+         * </pre>
+         *
+         * <code>.google.protobuf.Value value = 4;</code>
+         */
+        public Builder mergeValue(com.google.protobuf.Value value) {
+          if (valueBuilder_ == null) {
+            if (value_ != null) {
+              value_ = com.google.protobuf.Value.newBuilder(value_).mergeFrom(value).buildPartial();
+            } else {
+              value_ = value;
+            }
+            onChanged();
+          } else {
+            valueBuilder_.mergeFrom(value);
+          }
+
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+         * The value of the parameter. This field can be set by the webhook to
+         * change the parameter value.
+         * </pre>
+         *
+         * <code>.google.protobuf.Value value = 4;</code>
+         */
+        public Builder clearValue() {
+          if (valueBuilder_ == null) {
+            value_ = null;
+            onChanged();
+          } else {
+            value_ = null;
+            valueBuilder_ = null;
+          }
+
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+         * The value of the parameter. This field can be set by the webhook to
+         * change the parameter value.
+         * </pre>
+         *
+         * <code>.google.protobuf.Value value = 4;</code>
+         */
+        public com.google.protobuf.Value.Builder getValueBuilder() {
+
+          onChanged();
+          return getValueFieldBuilder().getBuilder();
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+         * The value of the parameter. This field can be set by the webhook to
+         * change the parameter value.
+         * </pre>
+         *
+         * <code>.google.protobuf.Value value = 4;</code>
+         */
+        public com.google.protobuf.ValueOrBuilder getValueOrBuilder() {
+          if (valueBuilder_ != null) {
+            return valueBuilder_.getMessageOrBuilder();
+          } else {
+            return value_ == null ? com.google.protobuf.Value.getDefaultInstance() : value_;
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+         * The value of the parameter. This field can be set by the webhook to
+         * change the parameter value.
+         * </pre>
+         *
+         * <code>.google.protobuf.Value value = 4;</code>
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.Value,
+                com.google.protobuf.Value.Builder,
+                com.google.protobuf.ValueOrBuilder>
+            getValueFieldBuilder() {
+          if (valueBuilder_ == null) {
+            valueBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.protobuf.Value,
+                    com.google.protobuf.Value.Builder,
+                    com.google.protobuf.ValueOrBuilder>(
+                    getValue(), getParentForChildren(), isClean());
+            value_ = null;
+          }
+          return valueBuilder_;
+        }
+
+        private boolean justCollected_;
+        /**
+         *
+         *
+         * <pre>
+         * Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+         * Indicates if the parameter value was just collected on the last
+         * conversation turn.
+         * </pre>
+         *
+         * <code>bool just_collected = 5;</code>
+         *
+         * @return The justCollected.
+         */
+        @java.lang.Override
+        public boolean getJustCollected() {
+          return justCollected_;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+         * Indicates if the parameter value was just collected on the last
+         * conversation turn.
+         * </pre>
+         *
+         * <code>bool just_collected = 5;</code>
+         *
+         * @param value The justCollected to set.
+         * @return This builder for chaining.
+         */
+        public Builder setJustCollected(boolean value) {
+
+          justCollected_ = value;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+         * Indicates if the parameter value was just collected on the last
+         * conversation turn.
+         * </pre>
+         *
+         * <code>bool just_collected = 5;</code>
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearJustCollected() {
+
+          justCollected_ = false;
+          onChanged();
+          return this;
+        }
+
+        @java.lang.Override
+        public final Builder setUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.setUnknownFields(unknownFields);
+        }
+
+        @java.lang.Override
+        public final Builder mergeUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.mergeUnknownFields(unknownFields);
+        }
+
+        // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo)
+      }
+
+      // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo)
+      private static final com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+          DEFAULT_INSTANCE;
+
+      static {
+        DEFAULT_INSTANCE =
+            new com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo();
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+          getDefaultInstance() {
+        return DEFAULT_INSTANCE;
+      }
+
+      private static final com.google.protobuf.Parser<ParameterInfo> PARSER =
+          new com.google.protobuf.AbstractParser<ParameterInfo>() {
+            @java.lang.Override
+            public ParameterInfo parsePartialFrom(
+                com.google.protobuf.CodedInputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+              return new ParameterInfo(input, extensionRegistry);
+            }
+          };
+
+      public static com.google.protobuf.Parser<ParameterInfo> parser() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Parser<ParameterInfo> getParserForType() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+          getDefaultInstanceForType() {
+        return DEFAULT_INSTANCE;
+      }
+    }
+
+    public static final int PARAMETER_INFO_FIELD_NUMBER = 2;
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo>
+        parameterInfo_;
+    /**
+     *
+     *
+     * <pre>
+     * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * The parameters contained in the form. Note that the webhook cannot add
+     * or remove any form parameter.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+     * </code>
+     */
+    @java.lang.Override
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo>
+        getParameterInfoList() {
+      return parameterInfo_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * The parameters contained in the form. Note that the webhook cannot add
+     * or remove any form parameter.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+     * </code>
+     */
+    @java.lang.Override
+    public java.util.List<
+            ? extends
+                com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfoOrBuilder>
+        getParameterInfoOrBuilderList() {
+      return parameterInfo_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * The parameters contained in the form. Note that the webhook cannot add
+     * or remove any form parameter.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+     * </code>
+     */
+    @java.lang.Override
+    public int getParameterInfoCount() {
+      return parameterInfo_.size();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * The parameters contained in the form. Note that the webhook cannot add
+     * or remove any form parameter.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+     * </code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo getParameterInfo(
+        int index) {
+      return parameterInfo_.get(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * The parameters contained in the form. Note that the webhook cannot add
+     * or remove any form parameter.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+     * </code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfoOrBuilder
+        getParameterInfoOrBuilder(int index) {
+      return parameterInfo_.get(index);
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      for (int i = 0; i < parameterInfo_.size(); i++) {
+        output.writeMessage(2, parameterInfo_.get(i));
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      for (int i = 0; i < parameterInfo_.size(); i++) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, parameterInfo_.get(i));
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo other =
+          (com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo) obj;
+
+      if (!getParameterInfoList().equals(other.getParameterInfoList())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      if (getParameterInfoCount() > 0) {
+        hash = (37 * hash) + PARAMETER_INFO_FIELD_NUMBER;
+        hash = (53 * hash) + getParameterInfoList().hashCode();
+      }
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo parseDelimitedFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo parseDelimitedFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents form information.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo)
+        com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfoOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_FormInfo_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_FormInfo_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.class,
+                com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.Builder.class);
+      }
+
+      // Construct using com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+          getParameterInfoFieldBuilder();
+        }
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        if (parameterInfoBuilder_ == null) {
+          parameterInfo_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000001);
+        } else {
+          parameterInfoBuilder_.clear();
+        }
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_FormInfo_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo build() {
+        com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo buildPartial() {
+        com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo result =
+            new com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo(this);
+        int from_bitField0_ = bitField0_;
+        if (parameterInfoBuilder_ == null) {
+          if (((bitField0_ & 0x00000001) != 0)) {
+            parameterInfo_ = java.util.Collections.unmodifiableList(parameterInfo_);
+            bitField0_ = (bitField0_ & ~0x00000001);
+          }
+          result.parameterInfo_ = parameterInfo_;
+        } else {
+          result.parameterInfo_ = parameterInfoBuilder_.build();
+        }
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo) {
+          return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo other) {
+        if (other == com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.getDefaultInstance())
+          return this;
+        if (parameterInfoBuilder_ == null) {
+          if (!other.parameterInfo_.isEmpty()) {
+            if (parameterInfo_.isEmpty()) {
+              parameterInfo_ = other.parameterInfo_;
+              bitField0_ = (bitField0_ & ~0x00000001);
+            } else {
+              ensureParameterInfoIsMutable();
+              parameterInfo_.addAll(other.parameterInfo_);
+            }
+            onChanged();
+          }
+        } else {
+          if (!other.parameterInfo_.isEmpty()) {
+            if (parameterInfoBuilder_.isEmpty()) {
+              parameterInfoBuilder_.dispose();
+              parameterInfoBuilder_ = null;
+              parameterInfo_ = other.parameterInfo_;
+              bitField0_ = (bitField0_ & ~0x00000001);
+              parameterInfoBuilder_ =
+                  com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                      ? getParameterInfoFieldBuilder()
+                      : null;
+            } else {
+              parameterInfoBuilder_.addAllMessages(other.parameterInfo_);
+            }
+          }
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo) e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private int bitField0_;
+
+      private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo>
+          parameterInfo_ = java.util.Collections.emptyList();
+
+      private void ensureParameterInfoIsMutable() {
+        if (!((bitField0_ & 0x00000001) != 0)) {
+          parameterInfo_ =
+              new java.util.ArrayList<
+                  com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo>(
+                  parameterInfo_);
+          bitField0_ |= 0x00000001;
+        }
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo,
+              com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.Builder,
+              com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfoOrBuilder>
+          parameterInfoBuilder_;
+
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The parameters contained in the form. Note that the webhook cannot add
+       * or remove any form parameter.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+       * </code>
+       */
+      public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo>
+          getParameterInfoList() {
+        if (parameterInfoBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(parameterInfo_);
+        } else {
+          return parameterInfoBuilder_.getMessageList();
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The parameters contained in the form. Note that the webhook cannot add
+       * or remove any form parameter.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+       * </code>
+       */
+      public int getParameterInfoCount() {
+        if (parameterInfoBuilder_ == null) {
+          return parameterInfo_.size();
+        } else {
+          return parameterInfoBuilder_.getCount();
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The parameters contained in the form. Note that the webhook cannot add
+       * or remove any form parameter.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+       * </code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+          getParameterInfo(int index) {
+        if (parameterInfoBuilder_ == null) {
+          return parameterInfo_.get(index);
+        } else {
+          return parameterInfoBuilder_.getMessage(index);
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The parameters contained in the form. Note that the webhook cannot add
+       * or remove any form parameter.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+       * </code>
+       */
+      public Builder setParameterInfo(
+          int index, com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo value) {
+        if (parameterInfoBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureParameterInfoIsMutable();
+          parameterInfo_.set(index, value);
+          onChanged();
+        } else {
+          parameterInfoBuilder_.setMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The parameters contained in the form. Note that the webhook cannot add
+       * or remove any form parameter.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+       * </code>
+       */
+      public Builder setParameterInfo(
+          int index,
+          com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.Builder
+              builderForValue) {
+        if (parameterInfoBuilder_ == null) {
+          ensureParameterInfoIsMutable();
+          parameterInfo_.set(index, builderForValue.build());
+          onChanged();
+        } else {
+          parameterInfoBuilder_.setMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The parameters contained in the form. Note that the webhook cannot add
+       * or remove any form parameter.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+       * </code>
+       */
+      public Builder addParameterInfo(
+          com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo value) {
+        if (parameterInfoBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureParameterInfoIsMutable();
+          parameterInfo_.add(value);
+          onChanged();
+        } else {
+          parameterInfoBuilder_.addMessage(value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The parameters contained in the form. Note that the webhook cannot add
+       * or remove any form parameter.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+       * </code>
+       */
+      public Builder addParameterInfo(
+          int index, com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo value) {
+        if (parameterInfoBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureParameterInfoIsMutable();
+          parameterInfo_.add(index, value);
+          onChanged();
+        } else {
+          parameterInfoBuilder_.addMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The parameters contained in the form. Note that the webhook cannot add
+       * or remove any form parameter.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+       * </code>
+       */
+      public Builder addParameterInfo(
+          com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.Builder
+              builderForValue) {
+        if (parameterInfoBuilder_ == null) {
+          ensureParameterInfoIsMutable();
+          parameterInfo_.add(builderForValue.build());
+          onChanged();
+        } else {
+          parameterInfoBuilder_.addMessage(builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The parameters contained in the form. Note that the webhook cannot add
+       * or remove any form parameter.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+       * </code>
+       */
+      public Builder addParameterInfo(
+          int index,
+          com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.Builder
+              builderForValue) {
+        if (parameterInfoBuilder_ == null) {
+          ensureParameterInfoIsMutable();
+          parameterInfo_.add(index, builderForValue.build());
+          onChanged();
+        } else {
+          parameterInfoBuilder_.addMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The parameters contained in the form. Note that the webhook cannot add
+       * or remove any form parameter.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+       * </code>
+       */
+      public Builder addAllParameterInfo(
+          java.lang.Iterable<
+                  ? extends com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo>
+              values) {
+        if (parameterInfoBuilder_ == null) {
+          ensureParameterInfoIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, parameterInfo_);
+          onChanged();
+        } else {
+          parameterInfoBuilder_.addAllMessages(values);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The parameters contained in the form. Note that the webhook cannot add
+       * or remove any form parameter.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+       * </code>
+       */
+      public Builder clearParameterInfo() {
+        if (parameterInfoBuilder_ == null) {
+          parameterInfo_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000001);
+          onChanged();
+        } else {
+          parameterInfoBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The parameters contained in the form. Note that the webhook cannot add
+       * or remove any form parameter.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+       * </code>
+       */
+      public Builder removeParameterInfo(int index) {
+        if (parameterInfoBuilder_ == null) {
+          ensureParameterInfoIsMutable();
+          parameterInfo_.remove(index);
+          onChanged();
+        } else {
+          parameterInfoBuilder_.remove(index);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The parameters contained in the form. Note that the webhook cannot add
+       * or remove any form parameter.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+       * </code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.Builder
+          getParameterInfoBuilder(int index) {
+        return getParameterInfoFieldBuilder().getBuilder(index);
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The parameters contained in the form. Note that the webhook cannot add
+       * or remove any form parameter.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+       * </code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfoOrBuilder
+          getParameterInfoOrBuilder(int index) {
+        if (parameterInfoBuilder_ == null) {
+          return parameterInfo_.get(index);
+        } else {
+          return parameterInfoBuilder_.getMessageOrBuilder(index);
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The parameters contained in the form. Note that the webhook cannot add
+       * or remove any form parameter.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+       * </code>
+       */
+      public java.util.List<
+              ? extends
+                  com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfoOrBuilder>
+          getParameterInfoOrBuilderList() {
+        if (parameterInfoBuilder_ != null) {
+          return parameterInfoBuilder_.getMessageOrBuilderList();
+        } else {
+          return java.util.Collections.unmodifiableList(parameterInfo_);
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The parameters contained in the form. Note that the webhook cannot add
+       * or remove any form parameter.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+       * </code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.Builder
+          addParameterInfoBuilder() {
+        return getParameterInfoFieldBuilder()
+            .addBuilder(
+                com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+                    .getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The parameters contained in the form. Note that the webhook cannot add
+       * or remove any form parameter.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+       * </code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.Builder
+          addParameterInfoBuilder(int index) {
+        return getParameterInfoFieldBuilder()
+            .addBuilder(
+                index,
+                com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo
+                    .getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+       * The parameters contained in the form. Note that the webhook cannot add
+       * or remove any form parameter.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo parameter_info = 2;
+       * </code>
+       */
+      public java.util.List<
+              com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.Builder>
+          getParameterInfoBuilderList() {
+        return getParameterInfoFieldBuilder().getBuilderList();
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo,
+              com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.Builder,
+              com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfoOrBuilder>
+          getParameterInfoFieldBuilder() {
+        if (parameterInfoBuilder_ == null) {
+          parameterInfoBuilder_ =
+              new com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo,
+                  com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.Builder,
+                  com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfoOrBuilder>(
+                  parameterInfo_,
+                  ((bitField0_ & 0x00000001) != 0),
+                  getParentForChildren(),
+                  isClean());
+          parameterInfo_ = null;
+        }
+        return parameterInfoBuilder_;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo)
+    private static final com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo();
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<FormInfo> PARSER =
+        new com.google.protobuf.AbstractParser<FormInfo>() {
+          @java.lang.Override
+          public FormInfo parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new FormInfo(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser<FormInfo> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<FormInfo> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public static final int CURRENT_PAGE_FIELD_NUMBER = 1;
+  private volatile java.lang.Object currentPage_;
+  /**
+   *
+   *
+   * <pre>
+   * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * The unique identifier of the current page.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>string current_page = 1 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The currentPage.
+   */
+  @java.lang.Override
+  public java.lang.String getCurrentPage() {
+    java.lang.Object ref = currentPage_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      currentPage_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * The unique identifier of the current page.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>string current_page = 1 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for currentPage.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getCurrentPageBytes() {
+    java.lang.Object ref = currentPage_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      currentPage_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int FORM_INFO_FIELD_NUMBER = 3;
+  private com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo formInfo_;
+  /**
+   *
+   *
+   * <pre>
+   * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * Information about the form.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo form_info = 3;</code>
+   *
+   * @return Whether the formInfo field is set.
+   */
+  @java.lang.Override
+  public boolean hasFormInfo() {
+    return formInfo_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * Information about the form.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo form_info = 3;</code>
+   *
+   * @return The formInfo.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo getFormInfo() {
+    return formInfo_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.getDefaultInstance()
+        : formInfo_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * Information about the form.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo form_info = 3;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfoOrBuilder getFormInfoOrBuilder() {
+    return getFormInfo();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getCurrentPageBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, currentPage_);
+    }
+    if (formInfo_ != null) {
+      output.writeMessage(3, getFormInfo());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getCurrentPageBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, currentPage_);
+    }
+    if (formInfo_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getFormInfo());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.PageInfo)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.PageInfo other =
+        (com.google.cloud.dialogflow.cx.v3beta1.PageInfo) obj;
+
+    if (!getCurrentPage().equals(other.getCurrentPage())) return false;
+    if (hasFormInfo() != other.hasFormInfo()) return false;
+    if (hasFormInfo()) {
+      if (!getFormInfo().equals(other.getFormInfo())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + CURRENT_PAGE_FIELD_NUMBER;
+    hash = (53 * hash) + getCurrentPage().hashCode();
+    if (hasFormInfo()) {
+      hash = (37 * hash) + FORM_INFO_FIELD_NUMBER;
+      hash = (53 * hash) + getFormInfo().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo parseFrom(java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.cx.v3beta1.PageInfo prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents page information communicated to and from the webhook.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.PageInfo}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.PageInfo)
+      com.google.cloud.dialogflow.cx.v3beta1.PageInfoOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.PageInfo.class,
+              com.google.cloud.dialogflow.cx.v3beta1.PageInfo.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.PageInfo.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      currentPage_ = "";
+
+      if (formInfoBuilder_ == null) {
+        formInfo_ = null;
+      } else {
+        formInfo_ = null;
+        formInfoBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.PageInfo getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageInfo.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.PageInfo build() {
+      com.google.cloud.dialogflow.cx.v3beta1.PageInfo result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.PageInfo buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.PageInfo result =
+          new com.google.cloud.dialogflow.cx.v3beta1.PageInfo(this);
+      result.currentPage_ = currentPage_;
+      if (formInfoBuilder_ == null) {
+        result.formInfo_ = formInfo_;
+      } else {
+        result.formInfo_ = formInfoBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.PageInfo) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.PageInfo) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.PageInfo other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.PageInfo.getDefaultInstance())
+        return this;
+      if (!other.getCurrentPage().isEmpty()) {
+        currentPage_ = other.currentPage_;
+        onChanged();
+      }
+      if (other.hasFormInfo()) {
+        mergeFormInfo(other.getFormInfo());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.PageInfo parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.dialogflow.cx.v3beta1.PageInfo) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object currentPage_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * The unique identifier of the current page.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string current_page = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The currentPage.
+     */
+    public java.lang.String getCurrentPage() {
+      java.lang.Object ref = currentPage_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        currentPage_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * The unique identifier of the current page.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string current_page = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The bytes for currentPage.
+     */
+    public com.google.protobuf.ByteString getCurrentPageBytes() {
+      java.lang.Object ref = currentPage_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        currentPage_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * The unique identifier of the current page.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string current_page = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The currentPage to set.
+     * @return This builder for chaining.
+     */
+    public Builder setCurrentPage(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      currentPage_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * The unique identifier of the current page.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string current_page = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearCurrentPage() {
+
+      currentPage_ = getDefaultInstance().getCurrentPage();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * The unique identifier of the current page.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string current_page = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The bytes for currentPage to set.
+     * @return This builder for chaining.
+     */
+    public Builder setCurrentPageBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      currentPage_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo formInfo_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo,
+            com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfoOrBuilder>
+        formInfoBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * Information about the form.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo form_info = 3;</code>
+     *
+     * @return Whether the formInfo field is set.
+     */
+    public boolean hasFormInfo() {
+      return formInfoBuilder_ != null || formInfo_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * Information about the form.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo form_info = 3;</code>
+     *
+     * @return The formInfo.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo getFormInfo() {
+      if (formInfoBuilder_ == null) {
+        return formInfo_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.getDefaultInstance()
+            : formInfo_;
+      } else {
+        return formInfoBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * Information about the form.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo form_info = 3;</code>
+     */
+    public Builder setFormInfo(com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo value) {
+      if (formInfoBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        formInfo_ = value;
+        onChanged();
+      } else {
+        formInfoBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * Information about the form.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo form_info = 3;</code>
+     */
+    public Builder setFormInfo(
+        com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.Builder builderForValue) {
+      if (formInfoBuilder_ == null) {
+        formInfo_ = builderForValue.build();
+        onChanged();
+      } else {
+        formInfoBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * Information about the form.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo form_info = 3;</code>
+     */
+    public Builder mergeFormInfo(com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo value) {
+      if (formInfoBuilder_ == null) {
+        if (formInfo_ != null) {
+          formInfo_ =
+              com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.newBuilder(formInfo_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          formInfo_ = value;
+        }
+        onChanged();
+      } else {
+        formInfoBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * Information about the form.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo form_info = 3;</code>
+     */
+    public Builder clearFormInfo() {
+      if (formInfoBuilder_ == null) {
+        formInfo_ = null;
+        onChanged();
+      } else {
+        formInfo_ = null;
+        formInfoBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * Information about the form.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo form_info = 3;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.Builder getFormInfoBuilder() {
+
+      onChanged();
+      return getFormInfoFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * Information about the form.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo form_info = 3;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfoOrBuilder
+        getFormInfoOrBuilder() {
+      if (formInfoBuilder_ != null) {
+        return formInfoBuilder_.getMessageOrBuilder();
+      } else {
+        return formInfo_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.getDefaultInstance()
+            : formInfo_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * Information about the form.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo form_info = 3;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo,
+            com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfoOrBuilder>
+        getFormInfoFieldBuilder() {
+      if (formInfoBuilder_ == null) {
+        formInfoBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo,
+                com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfoOrBuilder>(
+                getFormInfo(), getParentForChildren(), isClean());
+        formInfo_ = null;
+      }
+      return formInfoBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.PageInfo)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.PageInfo)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.PageInfo DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.PageInfo();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.PageInfo getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<PageInfo> PARSER =
+      new com.google.protobuf.AbstractParser<PageInfo>() {
+        @java.lang.Override
+        public PageInfo parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new PageInfo(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<PageInfo> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<PageInfo> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.PageInfo getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PageInfoOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PageInfoOrBuilder.java
new file mode 100644
index 000000000..a6608831f
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PageInfoOrBuilder.java
@@ -0,0 +1,94 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface PageInfoOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.PageInfo)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * The unique identifier of the current page.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>string current_page = 1 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The currentPage.
+   */
+  java.lang.String getCurrentPage();
+  /**
+   *
+   *
+   * <pre>
+   * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * The unique identifier of the current page.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>string current_page = 1 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for currentPage.
+   */
+  com.google.protobuf.ByteString getCurrentPageBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * Information about the form.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo form_info = 3;</code>
+   *
+   * @return Whether the formInfo field is set.
+   */
+  boolean hasFormInfo();
+  /**
+   *
+   *
+   * <pre>
+   * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * Information about the form.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo form_info = 3;</code>
+   *
+   * @return The formInfo.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo getFormInfo();
+  /**
+   *
+   *
+   * <pre>
+   * Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * Information about the form.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo form_info = 3;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfoOrBuilder getFormInfoOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PageName.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PageName.java
new file mode 100644
index 000000000..1bcd0c9ad
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PageName.java
@@ -0,0 +1,268 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+/** AUTO-GENERATED DOCUMENTATION AND CLASS */
+@javax.annotation.Generated("by GAPIC protoc plugin")
+public class PageName implements ResourceName {
+
+  private static final PathTemplate PATH_TEMPLATE =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/agents/{agent}/flows/{flow}/pages/{page}");
+
+  private volatile Map<String, String> fieldValuesMap;
+
+  private final String project;
+  private final String location;
+  private final String agent;
+  private final String flow;
+  private final String page;
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public String getAgent() {
+    return agent;
+  }
+
+  public String getFlow() {
+    return flow;
+  }
+
+  public String getPage() {
+    return page;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  private PageName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    agent = Preconditions.checkNotNull(builder.getAgent());
+    flow = Preconditions.checkNotNull(builder.getFlow());
+    page = Preconditions.checkNotNull(builder.getPage());
+  }
+
+  public static PageName of(
+      String project, String location, String agent, String flow, String page) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setFlow(flow)
+        .setPage(page)
+        .build();
+  }
+
+  public static String format(
+      String project, String location, String agent, String flow, String page) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setFlow(flow)
+        .setPage(page)
+        .build()
+        .toString();
+  }
+
+  public static PageName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    Map<String, String> matchMap =
+        PATH_TEMPLATE.validatedMatch(
+            formattedString, "PageName.parse: formattedString not in valid format");
+    return of(
+        matchMap.get("project"),
+        matchMap.get("location"),
+        matchMap.get("agent"),
+        matchMap.get("flow"),
+        matchMap.get("page"));
+  }
+
+  public static List<PageName> parseList(List<String> formattedStrings) {
+    List<PageName> list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List<String> toStringList(List<PageName> values) {
+    List<String> list = new ArrayList<String>(values.size());
+    for (PageName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PATH_TEMPLATE.matches(formattedString);
+  }
+
+  public Map<String, String> getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder<String, String> fieldMapBuilder = ImmutableMap.builder();
+          fieldMapBuilder.put("project", project);
+          fieldMapBuilder.put("location", location);
+          fieldMapBuilder.put("agent", agent);
+          fieldMapBuilder.put("flow", flow);
+          fieldMapBuilder.put("page", page);
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return PATH_TEMPLATE.instantiate(
+        "project", project, "location", location, "agent", agent, "flow", flow, "page", page);
+  }
+
+  /** Builder for PageName. */
+  public static class Builder {
+
+    private String project;
+    private String location;
+    private String agent;
+    private String flow;
+    private String page;
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getAgent() {
+      return agent;
+    }
+
+    public String getFlow() {
+      return flow;
+    }
+
+    public String getPage() {
+      return page;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public Builder setAgent(String agent) {
+      this.agent = agent;
+      return this;
+    }
+
+    public Builder setFlow(String flow) {
+      this.flow = flow;
+      return this;
+    }
+
+    public Builder setPage(String page) {
+      this.page = page;
+      return this;
+    }
+
+    private Builder() {}
+
+    private Builder(PageName pageName) {
+      project = pageName.project;
+      location = pageName.location;
+      agent = pageName.agent;
+      flow = pageName.flow;
+      page = pageName.page;
+    }
+
+    public PageName build() {
+      return new PageName(this);
+    }
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o instanceof PageName) {
+      PageName that = (PageName) o;
+      return (this.project.equals(that.project))
+          && (this.location.equals(that.location))
+          && (this.agent.equals(that.agent))
+          && (this.flow.equals(that.flow))
+          && (this.page.equals(that.page));
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= project.hashCode();
+    h *= 1000003;
+    h ^= location.hashCode();
+    h *= 1000003;
+    h ^= agent.hashCode();
+    h *= 1000003;
+    h ^= flow.hashCode();
+    h *= 1000003;
+    h ^= page.hashCode();
+    return h;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PageOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PageOrBuilder.java
new file mode 100644
index 000000000..9ea6020db
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PageOrBuilder.java
@@ -0,0 +1,403 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/page.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface PageOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.Page)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the page.
+   * Required for the [Pages.UpdatePage][google.cloud.dialogflow.cx.v3beta1.Pages.UpdatePage] method. [Pages.CreatePage][google.cloud.dialogflow.cx.v3beta1.Pages.CreatePage]
+   * populates the name automatically.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the page.
+   * Required for the [Pages.UpdatePage][google.cloud.dialogflow.cx.v3beta1.Pages.UpdatePage] method. [Pages.CreatePage][google.cloud.dialogflow.cx.v3beta1.Pages.CreatePage]
+   * populates the name automatically.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the page, unique within the agent.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The displayName.
+   */
+  java.lang.String getDisplayName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the page, unique within the agent.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for displayName.
+   */
+  com.google.protobuf.ByteString getDisplayNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment to call when the session is entering the page.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment entry_fulfillment = 7;</code>
+   *
+   * @return Whether the entryFulfillment field is set.
+   */
+  boolean hasEntryFulfillment();
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment to call when the session is entering the page.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment entry_fulfillment = 7;</code>
+   *
+   * @return The entryFulfillment.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment getEntryFulfillment();
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment to call when the session is entering the page.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment entry_fulfillment = 7;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder getEntryFulfillmentOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The form associated with the page, used for collecting parameters
+   * relevant to the page.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Form form = 4;</code>
+   *
+   * @return Whether the form field is set.
+   */
+  boolean hasForm();
+  /**
+   *
+   *
+   * <pre>
+   * The form associated with the page, used for collecting parameters
+   * relevant to the page.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Form form = 4;</code>
+   *
+   * @return The form.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Form getForm();
+  /**
+   *
+   *
+   * <pre>
+   * The form associated with the page, used for collecting parameters
+   * relevant to the page.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Form form = 4;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.FormOrBuilder getFormOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Ordered list of [`TransitionRouteGroups`][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] associated
+   * with the page. Transition route groups must be unique within a page.
+   * *   If multiple transition routes within a page scope refer to the same
+   *     intent, then the precedence order is: page's transition route -&gt; page's
+   *     transition route group -&gt; flow's transition routes.
+   * *   If multiple transition route groups within a page contain the same
+   *     intent, then the first group in the ordered list takes precedence.
+   * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+   * </pre>
+   *
+   * <code>repeated string transition_route_groups = 11 [(.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return A list containing the transitionRouteGroups.
+   */
+  java.util.List<java.lang.String> getTransitionRouteGroupsList();
+  /**
+   *
+   *
+   * <pre>
+   * Ordered list of [`TransitionRouteGroups`][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] associated
+   * with the page. Transition route groups must be unique within a page.
+   * *   If multiple transition routes within a page scope refer to the same
+   *     intent, then the precedence order is: page's transition route -&gt; page's
+   *     transition route group -&gt; flow's transition routes.
+   * *   If multiple transition route groups within a page contain the same
+   *     intent, then the first group in the ordered list takes precedence.
+   * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+   * </pre>
+   *
+   * <code>repeated string transition_route_groups = 11 [(.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The count of transitionRouteGroups.
+   */
+  int getTransitionRouteGroupsCount();
+  /**
+   *
+   *
+   * <pre>
+   * Ordered list of [`TransitionRouteGroups`][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] associated
+   * with the page. Transition route groups must be unique within a page.
+   * *   If multiple transition routes within a page scope refer to the same
+   *     intent, then the precedence order is: page's transition route -&gt; page's
+   *     transition route group -&gt; flow's transition routes.
+   * *   If multiple transition route groups within a page contain the same
+   *     intent, then the first group in the ordered list takes precedence.
+   * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+   * </pre>
+   *
+   * <code>repeated string transition_route_groups = 11 [(.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @param index The index of the element to return.
+   * @return The transitionRouteGroups at the given index.
+   */
+  java.lang.String getTransitionRouteGroups(int index);
+  /**
+   *
+   *
+   * <pre>
+   * Ordered list of [`TransitionRouteGroups`][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] associated
+   * with the page. Transition route groups must be unique within a page.
+   * *   If multiple transition routes within a page scope refer to the same
+   *     intent, then the precedence order is: page's transition route -&gt; page's
+   *     transition route group -&gt; flow's transition routes.
+   * *   If multiple transition route groups within a page contain the same
+   *     intent, then the first group in the ordered list takes precedence.
+   * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+   * </pre>
+   *
+   * <code>repeated string transition_route_groups = 11 [(.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @param index The index of the value to return.
+   * @return The bytes of the transitionRouteGroups at the given index.
+   */
+  com.google.protobuf.ByteString getTransitionRouteGroupsBytes(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * A list of transitions for the transition rules of this page.
+   * They route the conversation to another page in the same flow, or another
+   * flow.
+   * When we are in a certain page, the TransitionRoutes are evalauted in the
+   * following order:
+   * *   TransitionRoutes defined in the page with intent specified.
+   * *   TransitionRoutes defined in the
+   * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+   * *   TransitionRoutes defined in flow with intent specified.
+   * *   TransitionRoutes defined in the page with only condition specified.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+   * </code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute> getTransitionRoutesList();
+  /**
+   *
+   *
+   * <pre>
+   * A list of transitions for the transition rules of this page.
+   * They route the conversation to another page in the same flow, or another
+   * flow.
+   * When we are in a certain page, the TransitionRoutes are evalauted in the
+   * following order:
+   * *   TransitionRoutes defined in the page with intent specified.
+   * *   TransitionRoutes defined in the
+   * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+   * *   TransitionRoutes defined in flow with intent specified.
+   * *   TransitionRoutes defined in the page with only condition specified.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute getTransitionRoutes(int index);
+  /**
+   *
+   *
+   * <pre>
+   * A list of transitions for the transition rules of this page.
+   * They route the conversation to another page in the same flow, or another
+   * flow.
+   * When we are in a certain page, the TransitionRoutes are evalauted in the
+   * following order:
+   * *   TransitionRoutes defined in the page with intent specified.
+   * *   TransitionRoutes defined in the
+   * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+   * *   TransitionRoutes defined in flow with intent specified.
+   * *   TransitionRoutes defined in the page with only condition specified.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+   * </code>
+   */
+  int getTransitionRoutesCount();
+  /**
+   *
+   *
+   * <pre>
+   * A list of transitions for the transition rules of this page.
+   * They route the conversation to another page in the same flow, or another
+   * flow.
+   * When we are in a certain page, the TransitionRoutes are evalauted in the
+   * following order:
+   * *   TransitionRoutes defined in the page with intent specified.
+   * *   TransitionRoutes defined in the
+   * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+   * *   TransitionRoutes defined in flow with intent specified.
+   * *   TransitionRoutes defined in the page with only condition specified.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+   * </code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder>
+      getTransitionRoutesOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * A list of transitions for the transition rules of this page.
+   * They route the conversation to another page in the same flow, or another
+   * flow.
+   * When we are in a certain page, the TransitionRoutes are evalauted in the
+   * following order:
+   * *   TransitionRoutes defined in the page with intent specified.
+   * *   TransitionRoutes defined in the
+   * [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+   * *   TransitionRoutes defined in flow with intent specified.
+   * *   TransitionRoutes defined in the page with only condition specified.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 9;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder getTransitionRoutesOrBuilder(
+      int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * Handlers associated with the page to handle events such as webhook errors,
+   * no match or no input.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EventHandler> getEventHandlersList();
+  /**
+   *
+   *
+   * <pre>
+   * Handlers associated with the page to handle events such as webhook errors,
+   * no match or no input.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.EventHandler getEventHandlers(int index);
+  /**
+   *
+   *
+   * <pre>
+   * Handlers associated with the page to handle events such as webhook errors,
+   * no match or no input.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+   */
+  int getEventHandlersCount();
+  /**
+   *
+   *
+   * <pre>
+   * Handlers associated with the page to handle events such as webhook errors,
+   * no match or no input.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder>
+      getEventHandlersOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * Handlers associated with the page to handle events such as webhook errors,
+   * no match or no input.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.EventHandler event_handlers = 10;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder getEventHandlersOrBuilder(int index);
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PageProto.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PageProto.java
new file mode 100644
index 000000000..e8baeddf8
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/PageProto.java
@@ -0,0 +1,335 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/page.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public final class PageProto {
+  private PageProto() {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistryLite registry) {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions((com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Page_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Page_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Form_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Form_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Form_Parameter_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Form_Parameter_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Form_Parameter_FillBehavior_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Form_Parameter_FillBehavior_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_EventHandler_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_EventHandler_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_TransitionRoute_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_TransitionRoute_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListPagesRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListPagesRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListPagesResponse_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListPagesResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_GetPageRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_GetPageRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_CreatePageRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_CreatePageRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_UpdatePageRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_UpdatePageRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DeletePageRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DeletePageRequest_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
+    return descriptor;
+  }
+
+  private static com.google.protobuf.Descriptors.FileDescriptor descriptor;
+
+  static {
+    java.lang.String[] descriptorData = {
+      "\n-google/cloud/dialogflow/cx/v3beta1/pag"
+          + "e.proto\022\"google.cloud.dialogflow.cx.v3be"
+          + "ta1\032\034google/api/annotations.proto\032\027googl"
+          + "e/api/client.proto\032\037google/api/field_beh"
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+          + "llment.proto\032\033google/protobuf/empty.prot"
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+          + "Page\022Pprojects/{project}/locations/{loca"
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+          + "{page}\"\247\004\n\004Form\022F\n\nparameters\030\001 \003(\01322.go"
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+          + "\340A\002\022-\n\rdefault_value\030\t \001(\0132\026.google.prot"
+          + "obuf.Value\032\273\001\n\014FillBehavior\022X\n\032initial_p"
+          + "rompt_fulfillment\030\003 \001(\0132/.google.cloud.d"
+          + "ialogflow.cx.v3beta1.FulfillmentB\003\340A\002\022Q\n"
+          + "\027reprompt_event_handlers\030\005 \003(\01320.google."
+          + "cloud.dialogflow.cx.v3beta1.EventHandler"
+          + "\"\205\002\n\014EventHandler\022\021\n\004name\030\006 \001(\tB\003\340A\003\022\022\n\005"
+          + "event\030\004 \001(\tB\003\340A\002\022L\n\023trigger_fulfillment\030"
+          + "\005 \001(\0132/.google.cloud.dialogflow.cx.v3bet"
+          + "a1.Fulfillment\022:\n\013target_page\030\002 \001(\tB#\372A "
+          + "\n\036dialogflow.googleapis.com/PageH\000\022:\n\013ta"
+          + "rget_flow\030\003 \001(\tB#\372A \n\036dialogflow.googlea"
+          + "pis.com/FlowH\000B\010\n\006target\"\276\002\n\017TransitionR"
+          + "oute\022\021\n\004name\030\006 \001(\tB\003\340A\003\0225\n\006intent\030\001 \001(\tB"
+          + "%\372A\"\n dialogflow.googleapis.com/Intent\022\021"
+          + "\n\tcondition\030\002 \001(\t\022L\n\023trigger_fulfillment"
+          + "\030\003 \001(\0132/.google.cloud.dialogflow.cx.v3be"
+          + "ta1.Fulfillment\022:\n\013target_page\030\004 \001(\tB#\372A"
+          + " \n\036dialogflow.googleapis.com/PageH\000\022:\n\013t"
+          + "arget_flow\030\005 \001(\tB#\372A \n\036dialogflow.google"
+          + "apis.com/FlowH\000B\010\n\006target\"\210\001\n\020ListPagesR"
+          + "equest\0226\n\006parent\030\001 \001(\tB&\340A\002\372A \022\036dialogfl"
+          + "ow.googleapis.com/Page\022\025\n\rlanguage_code\030"
+          + "\002 \001(\t\022\021\n\tpage_size\030\003 \001(\005\022\022\n\npage_token\030\004"
+          + " \001(\t\"e\n\021ListPagesResponse\0227\n\005pages\030\001 \003(\013"
+          + "2(.google.cloud.dialogflow.cx.v3beta1.Pa"
+          + "ge\022\027\n\017next_page_token\030\002 \001(\t\"]\n\016GetPageRe"
+          + "quest\0224\n\004name\030\001 \001(\tB&\340A\002\372A \n\036dialogflow."
+          + "googleapis.com/Page\022\025\n\rlanguage_code\030\002 \001"
+          + "(\t\"\237\001\n\021CreatePageRequest\0226\n\006parent\030\001 \001(\t"
+          + "B&\340A\002\372A \022\036dialogflow.googleapis.com/Page"
+          + "\022;\n\004page\030\002 \001(\0132(.google.cloud.dialogflow"
+          + ".cx.v3beta1.PageB\003\340A\002\022\025\n\rlanguage_code\030\003"
+          + " \001(\t\"\230\001\n\021UpdatePageRequest\022;\n\004page\030\001 \001(\013"
+          + "2(.google.cloud.dialogflow.cx.v3beta1.Pa"
+          + "geB\003\340A\002\022\025\n\rlanguage_code\030\002 \001(\t\022/\n\013update"
+          + "_mask\030\003 \001(\0132\032.google.protobuf.FieldMask\""
+          + "X\n\021DeletePageRequest\0224\n\004name\030\001 \001(\tB&\340A\002\372"
+          + "A \n\036dialogflow.googleapis.com/Page\022\r\n\005fo"
+          + "rce\030\002 \001(\0102\332\010\n\005Pages\022\312\001\n\tListPages\0224.goog"
+          + "le.cloud.dialogflow.cx.v3beta1.ListPages"
+          + "Request\0325.google.cloud.dialogflow.cx.v3b"
+          + "eta1.ListPagesResponse\"P\202\323\344\223\002A\022?/v3beta1"
+          + "/{parent=projects/*/locations/*/agents/*"
+          + "/flows/*}/pages\332A\006parent\022\267\001\n\007GetPage\0222.g"
+          + "oogle.cloud.dialogflow.cx.v3beta1.GetPag"
+          + "eRequest\032(.google.cloud.dialogflow.cx.v3"
+          + "beta1.Page\"N\202\323\344\223\002A\022?/v3beta1/{name=proje"
+          + "cts/*/locations/*/agents/*/flows/*/pages"
+          + "/*}\332A\004name\022\312\001\n\nCreatePage\0225.google.cloud"
+          + ".dialogflow.cx.v3beta1.CreatePageRequest"
+          + "\032(.google.cloud.dialogflow.cx.v3beta1.Pa"
+          + "ge\"[\202\323\344\223\002G\"?/v3beta1/{parent=projects/*/"
+          + "locations/*/agents/*/flows/*}/pages:\004pag"
+          + "e\332A\013parent,page\022\324\001\n\nUpdatePage\0225.google."
+          + "cloud.dialogflow.cx.v3beta1.UpdatePageRe"
+          + "quest\032(.google.cloud.dialogflow.cx.v3bet"
+          + "a1.Page\"e\202\323\344\223\002L2D/v3beta1/{page.name=pro"
+          + "jects/*/locations/*/agents/*/flows/*/pag"
+          + "es/*}:\004page\332A\020page,update_mask\022\253\001\n\nDelet"
+          + "ePage\0225.google.cloud.dialogflow.cx.v3bet"
+          + "a1.DeletePageRequest\032\026.google.protobuf.E"
+          + "mpty\"N\202\323\344\223\002A*?/v3beta1/{name=projects/*/"
+          + "locations/*/agents/*/flows/*/pages/*}\332A\004"
+          + "name\032x\312A\031dialogflow.googleapis.com\322AYhtt"
+          + "ps://www.googleapis.com/auth/cloud-platf"
+          + "orm,https://www.googleapis.com/auth/dial"
+          + "ogflowB\250\001\n&com.google.cloud.dialogflow.c"
+          + "x.v3beta1B\tPageProtoP\001ZDgoogle.golang.or"
+          + "g/genproto/googleapis/cloud/dialogflow/c"
+          + "x/v3beta1;cx\370\001\001\242\002\002DF\252\002\"Google.Cloud.Dial"
+          + "ogflow.Cx.V3Beta1b\006proto3"
+    };
+    descriptor =
+        com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
+            descriptorData,
+            new com.google.protobuf.Descriptors.FileDescriptor[] {
+              com.google.api.AnnotationsProto.getDescriptor(),
+              com.google.api.ClientProto.getDescriptor(),
+              com.google.api.FieldBehaviorProto.getDescriptor(),
+              com.google.api.ResourceProto.getDescriptor(),
+              com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto.getDescriptor(),
+              com.google.protobuf.EmptyProto.getDescriptor(),
+              com.google.protobuf.FieldMaskProto.getDescriptor(),
+              com.google.protobuf.StructProto.getDescriptor(),
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Page_descriptor =
+        getDescriptor().getMessageTypes().get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Page_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_Page_descriptor,
+            new java.lang.String[] {
+              "Name",
+              "DisplayName",
+              "EntryFulfillment",
+              "Form",
+              "TransitionRouteGroups",
+              "TransitionRoutes",
+              "EventHandlers",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Form_descriptor =
+        getDescriptor().getMessageTypes().get(1);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Form_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_Form_descriptor,
+            new java.lang.String[] {
+              "Parameters",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Form_Parameter_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_Form_descriptor.getNestedTypes().get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Form_Parameter_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_Form_Parameter_descriptor,
+            new java.lang.String[] {
+              "DisplayName", "Required", "EntityType", "IsList", "FillBehavior", "DefaultValue",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Form_Parameter_FillBehavior_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_Form_Parameter_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Form_Parameter_FillBehavior_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_Form_Parameter_FillBehavior_descriptor,
+            new java.lang.String[] {
+              "InitialPromptFulfillment", "RepromptEventHandlers",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_EventHandler_descriptor =
+        getDescriptor().getMessageTypes().get(2);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_EventHandler_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_EventHandler_descriptor,
+            new java.lang.String[] {
+              "Name", "Event", "TriggerFulfillment", "TargetPage", "TargetFlow", "Target",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_TransitionRoute_descriptor =
+        getDescriptor().getMessageTypes().get(3);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_TransitionRoute_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_TransitionRoute_descriptor,
+            new java.lang.String[] {
+              "Name",
+              "Intent",
+              "Condition",
+              "TriggerFulfillment",
+              "TargetPage",
+              "TargetFlow",
+              "Target",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListPagesRequest_descriptor =
+        getDescriptor().getMessageTypes().get(4);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListPagesRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ListPagesRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "LanguageCode", "PageSize", "PageToken",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListPagesResponse_descriptor =
+        getDescriptor().getMessageTypes().get(5);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListPagesResponse_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ListPagesResponse_descriptor,
+            new java.lang.String[] {
+              "Pages", "NextPageToken",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_GetPageRequest_descriptor =
+        getDescriptor().getMessageTypes().get(6);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_GetPageRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_GetPageRequest_descriptor,
+            new java.lang.String[] {
+              "Name", "LanguageCode",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_CreatePageRequest_descriptor =
+        getDescriptor().getMessageTypes().get(7);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_CreatePageRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_CreatePageRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "Page", "LanguageCode",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_UpdatePageRequest_descriptor =
+        getDescriptor().getMessageTypes().get(8);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_UpdatePageRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_UpdatePageRequest_descriptor,
+            new java.lang.String[] {
+              "Page", "LanguageCode", "UpdateMask",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DeletePageRequest_descriptor =
+        getDescriptor().getMessageTypes().get(9);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DeletePageRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_DeletePageRequest_descriptor,
+            new java.lang.String[] {
+              "Name", "Force",
+            });
+    com.google.protobuf.ExtensionRegistry registry =
+        com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.ClientProto.defaultHost);
+    registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
+    registry.add(com.google.api.AnnotationsProto.http);
+    registry.add(com.google.api.ClientProto.methodSignature);
+    registry.add(com.google.api.ClientProto.oauthScopes);
+    registry.add(com.google.api.ResourceProto.resource);
+    registry.add(com.google.api.ResourceProto.resourceReference);
+    com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
+        descriptor, registry);
+    com.google.api.AnnotationsProto.getDescriptor();
+    com.google.api.ClientProto.getDescriptor();
+    com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.api.ResourceProto.getDescriptor();
+    com.google.cloud.dialogflow.cx.v3beta1.FulfillmentProto.getDescriptor();
+    com.google.protobuf.EmptyProto.getDescriptor();
+    com.google.protobuf.FieldMaskProto.getDescriptor();
+    com.google.protobuf.StructProto.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryInput.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryInput.java
new file mode 100644
index 000000000..d43a1c6f8
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryInput.java
@@ -0,0 +1,1657 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Represents the query input. It can contain either:
+ * 1.  A conversational query in the form of text.
+ * 2.  An intent query that specifies which intent to trigger.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.QueryInput}
+ */
+public final class QueryInput extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.QueryInput)
+    QueryInputOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use QueryInput.newBuilder() to construct.
+  private QueryInput(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private QueryInput() {
+    languageCode_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new QueryInput();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private QueryInput(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 18:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.TextInput.Builder subBuilder = null;
+              if (inputCase_ == 2) {
+                subBuilder =
+                    ((com.google.cloud.dialogflow.cx.v3beta1.TextInput) input_).toBuilder();
+              }
+              input_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.TextInput.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.TextInput) input_);
+                input_ = subBuilder.buildPartial();
+              }
+              inputCase_ = 2;
+              break;
+            }
+          case 26:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.IntentInput.Builder subBuilder = null;
+              if (inputCase_ == 3) {
+                subBuilder =
+                    ((com.google.cloud.dialogflow.cx.v3beta1.IntentInput) input_).toBuilder();
+              }
+              input_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.IntentInput.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.IntentInput) input_);
+                input_ = subBuilder.buildPartial();
+              }
+              inputCase_ = 3;
+              break;
+            }
+          case 34:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              languageCode_ = s;
+              break;
+            }
+          case 42:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.AudioInput.Builder subBuilder = null;
+              if (inputCase_ == 5) {
+                subBuilder =
+                    ((com.google.cloud.dialogflow.cx.v3beta1.AudioInput) input_).toBuilder();
+              }
+              input_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.AudioInput.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.AudioInput) input_);
+                input_ = subBuilder.buildPartial();
+              }
+              inputCase_ = 5;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_QueryInput_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_QueryInput_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.QueryInput.class,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryInput.Builder.class);
+  }
+
+  private int inputCase_ = 0;
+  private java.lang.Object input_;
+
+  public enum InputCase
+      implements
+          com.google.protobuf.Internal.EnumLite,
+          com.google.protobuf.AbstractMessage.InternalOneOfEnum {
+    TEXT(2),
+    INTENT(3),
+    AUDIO(5),
+    INPUT_NOT_SET(0);
+    private final int value;
+
+    private InputCase(int value) {
+      this.value = value;
+    }
+    /**
+     * @param value The number of the enum to look for.
+     * @return The enum associated with the given number.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static InputCase valueOf(int value) {
+      return forNumber(value);
+    }
+
+    public static InputCase forNumber(int value) {
+      switch (value) {
+        case 2:
+          return TEXT;
+        case 3:
+          return INTENT;
+        case 5:
+          return AUDIO;
+        case 0:
+          return INPUT_NOT_SET;
+        default:
+          return null;
+      }
+    }
+
+    public int getNumber() {
+      return this.value;
+    }
+  };
+
+  public InputCase getInputCase() {
+    return InputCase.forNumber(inputCase_);
+  }
+
+  public static final int TEXT_FIELD_NUMBER = 2;
+  /**
+   *
+   *
+   * <pre>
+   * The natural language text to be processed.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.TextInput text = 2;</code>
+   *
+   * @return Whether the text field is set.
+   */
+  @java.lang.Override
+  public boolean hasText() {
+    return inputCase_ == 2;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The natural language text to be processed.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.TextInput text = 2;</code>
+   *
+   * @return The text.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.TextInput getText() {
+    if (inputCase_ == 2) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.TextInput) input_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.TextInput.getDefaultInstance();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The natural language text to be processed.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.TextInput text = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.TextInputOrBuilder getTextOrBuilder() {
+    if (inputCase_ == 2) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.TextInput) input_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.TextInput.getDefaultInstance();
+  }
+
+  public static final int INTENT_FIELD_NUMBER = 3;
+  /**
+   *
+   *
+   * <pre>
+   * The intent to be triggered.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.IntentInput intent = 3;</code>
+   *
+   * @return Whether the intent field is set.
+   */
+  @java.lang.Override
+  public boolean hasIntent() {
+    return inputCase_ == 3;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The intent to be triggered.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.IntentInput intent = 3;</code>
+   *
+   * @return The intent.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.IntentInput getIntent() {
+    if (inputCase_ == 3) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.IntentInput) input_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.IntentInput.getDefaultInstance();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The intent to be triggered.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.IntentInput intent = 3;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.IntentInputOrBuilder getIntentOrBuilder() {
+    if (inputCase_ == 3) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.IntentInput) input_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.IntentInput.getDefaultInstance();
+  }
+
+  public static final int AUDIO_FIELD_NUMBER = 5;
+  /**
+   *
+   *
+   * <pre>
+   * The natural language speech audio to be processed.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.AudioInput audio = 5;</code>
+   *
+   * @return Whether the audio field is set.
+   */
+  @java.lang.Override
+  public boolean hasAudio() {
+    return inputCase_ == 5;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The natural language speech audio to be processed.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.AudioInput audio = 5;</code>
+   *
+   * @return The audio.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.AudioInput getAudio() {
+    if (inputCase_ == 5) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.AudioInput) input_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.AudioInput.getDefaultInstance();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The natural language speech audio to be processed.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.AudioInput audio = 5;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.AudioInputOrBuilder getAudioOrBuilder() {
+    if (inputCase_ == 5) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.AudioInput) input_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.AudioInput.getDefaultInstance();
+  }
+
+  public static final int LANGUAGE_CODE_FIELD_NUMBER = 4;
+  private volatile java.lang.Object languageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The language of the input. See [Language
+   * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
+   * list of the currently supported language codes. Note that queries in the
+   * same session do not necessarily need to specify the same language.
+   * </pre>
+   *
+   * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The languageCode.
+   */
+  @java.lang.Override
+  public java.lang.String getLanguageCode() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      languageCode_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The language of the input. See [Language
+   * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
+   * list of the currently supported language codes. Note that queries in the
+   * same session do not necessarily need to specify the same language.
+   * </pre>
+   *
+   * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getLanguageCodeBytes() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      languageCode_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (inputCase_ == 2) {
+      output.writeMessage(2, (com.google.cloud.dialogflow.cx.v3beta1.TextInput) input_);
+    }
+    if (inputCase_ == 3) {
+      output.writeMessage(3, (com.google.cloud.dialogflow.cx.v3beta1.IntentInput) input_);
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 4, languageCode_);
+    }
+    if (inputCase_ == 5) {
+      output.writeMessage(5, (com.google.cloud.dialogflow.cx.v3beta1.AudioInput) input_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (inputCase_ == 2) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              2, (com.google.cloud.dialogflow.cx.v3beta1.TextInput) input_);
+    }
+    if (inputCase_ == 3) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              3, (com.google.cloud.dialogflow.cx.v3beta1.IntentInput) input_);
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, languageCode_);
+    }
+    if (inputCase_ == 5) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              5, (com.google.cloud.dialogflow.cx.v3beta1.AudioInput) input_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.QueryInput)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.QueryInput other =
+        (com.google.cloud.dialogflow.cx.v3beta1.QueryInput) obj;
+
+    if (!getLanguageCode().equals(other.getLanguageCode())) return false;
+    if (!getInputCase().equals(other.getInputCase())) return false;
+    switch (inputCase_) {
+      case 2:
+        if (!getText().equals(other.getText())) return false;
+        break;
+      case 3:
+        if (!getIntent().equals(other.getIntent())) return false;
+        break;
+      case 5:
+        if (!getAudio().equals(other.getAudio())) return false;
+        break;
+      case 0:
+      default:
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
+    hash = (53 * hash) + getLanguageCode().hashCode();
+    switch (inputCase_) {
+      case 2:
+        hash = (37 * hash) + TEXT_FIELD_NUMBER;
+        hash = (53 * hash) + getText().hashCode();
+        break;
+      case 3:
+        hash = (37 * hash) + INTENT_FIELD_NUMBER;
+        hash = (53 * hash) + getIntent().hashCode();
+        break;
+      case 5:
+        hash = (37 * hash) + AUDIO_FIELD_NUMBER;
+        hash = (53 * hash) + getAudio().hashCode();
+        break;
+      case 0:
+      default:
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryInput parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryInput parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryInput parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryInput parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryInput parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryInput parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryInput parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryInput parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryInput parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryInput parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryInput parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryInput parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.cx.v3beta1.QueryInput prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents the query input. It can contain either:
+   * 1.  A conversational query in the form of text.
+   * 2.  An intent query that specifies which intent to trigger.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.QueryInput}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.QueryInput)
+      com.google.cloud.dialogflow.cx.v3beta1.QueryInputOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_QueryInput_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_QueryInput_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.QueryInput.class,
+              com.google.cloud.dialogflow.cx.v3beta1.QueryInput.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.QueryInput.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      languageCode_ = "";
+
+      inputCase_ = 0;
+      input_ = null;
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_QueryInput_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryInput getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.QueryInput.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryInput build() {
+      com.google.cloud.dialogflow.cx.v3beta1.QueryInput result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryInput buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.QueryInput result =
+          new com.google.cloud.dialogflow.cx.v3beta1.QueryInput(this);
+      if (inputCase_ == 2) {
+        if (textBuilder_ == null) {
+          result.input_ = input_;
+        } else {
+          result.input_ = textBuilder_.build();
+        }
+      }
+      if (inputCase_ == 3) {
+        if (intentBuilder_ == null) {
+          result.input_ = input_;
+        } else {
+          result.input_ = intentBuilder_.build();
+        }
+      }
+      if (inputCase_ == 5) {
+        if (audioBuilder_ == null) {
+          result.input_ = input_;
+        } else {
+          result.input_ = audioBuilder_.build();
+        }
+      }
+      result.languageCode_ = languageCode_;
+      result.inputCase_ = inputCase_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.QueryInput) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.QueryInput) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.QueryInput other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.QueryInput.getDefaultInstance())
+        return this;
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
+      }
+      switch (other.getInputCase()) {
+        case TEXT:
+          {
+            mergeText(other.getText());
+            break;
+          }
+        case INTENT:
+          {
+            mergeIntent(other.getIntent());
+            break;
+          }
+        case AUDIO:
+          {
+            mergeAudio(other.getAudio());
+            break;
+          }
+        case INPUT_NOT_SET:
+          {
+            break;
+          }
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.QueryInput parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.QueryInput) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int inputCase_ = 0;
+    private java.lang.Object input_;
+
+    public InputCase getInputCase() {
+      return InputCase.forNumber(inputCase_);
+    }
+
+    public Builder clearInput() {
+      inputCase_ = 0;
+      input_ = null;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.TextInput,
+            com.google.cloud.dialogflow.cx.v3beta1.TextInput.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.TextInputOrBuilder>
+        textBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The natural language text to be processed.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.TextInput text = 2;</code>
+     *
+     * @return Whether the text field is set.
+     */
+    @java.lang.Override
+    public boolean hasText() {
+      return inputCase_ == 2;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The natural language text to be processed.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.TextInput text = 2;</code>
+     *
+     * @return The text.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.TextInput getText() {
+      if (textBuilder_ == null) {
+        if (inputCase_ == 2) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.TextInput) input_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.TextInput.getDefaultInstance();
+      } else {
+        if (inputCase_ == 2) {
+          return textBuilder_.getMessage();
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.TextInput.getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The natural language text to be processed.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.TextInput text = 2;</code>
+     */
+    public Builder setText(com.google.cloud.dialogflow.cx.v3beta1.TextInput value) {
+      if (textBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        input_ = value;
+        onChanged();
+      } else {
+        textBuilder_.setMessage(value);
+      }
+      inputCase_ = 2;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The natural language text to be processed.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.TextInput text = 2;</code>
+     */
+    public Builder setText(
+        com.google.cloud.dialogflow.cx.v3beta1.TextInput.Builder builderForValue) {
+      if (textBuilder_ == null) {
+        input_ = builderForValue.build();
+        onChanged();
+      } else {
+        textBuilder_.setMessage(builderForValue.build());
+      }
+      inputCase_ = 2;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The natural language text to be processed.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.TextInput text = 2;</code>
+     */
+    public Builder mergeText(com.google.cloud.dialogflow.cx.v3beta1.TextInput value) {
+      if (textBuilder_ == null) {
+        if (inputCase_ == 2
+            && input_ != com.google.cloud.dialogflow.cx.v3beta1.TextInput.getDefaultInstance()) {
+          input_ =
+              com.google.cloud.dialogflow.cx.v3beta1.TextInput.newBuilder(
+                      (com.google.cloud.dialogflow.cx.v3beta1.TextInput) input_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          input_ = value;
+        }
+        onChanged();
+      } else {
+        if (inputCase_ == 2) {
+          textBuilder_.mergeFrom(value);
+        }
+        textBuilder_.setMessage(value);
+      }
+      inputCase_ = 2;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The natural language text to be processed.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.TextInput text = 2;</code>
+     */
+    public Builder clearText() {
+      if (textBuilder_ == null) {
+        if (inputCase_ == 2) {
+          inputCase_ = 0;
+          input_ = null;
+          onChanged();
+        }
+      } else {
+        if (inputCase_ == 2) {
+          inputCase_ = 0;
+          input_ = null;
+        }
+        textBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The natural language text to be processed.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.TextInput text = 2;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TextInput.Builder getTextBuilder() {
+      return getTextFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The natural language text to be processed.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.TextInput text = 2;</code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.TextInputOrBuilder getTextOrBuilder() {
+      if ((inputCase_ == 2) && (textBuilder_ != null)) {
+        return textBuilder_.getMessageOrBuilder();
+      } else {
+        if (inputCase_ == 2) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.TextInput) input_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.TextInput.getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The natural language text to be processed.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.TextInput text = 2;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.TextInput,
+            com.google.cloud.dialogflow.cx.v3beta1.TextInput.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.TextInputOrBuilder>
+        getTextFieldBuilder() {
+      if (textBuilder_ == null) {
+        if (!(inputCase_ == 2)) {
+          input_ = com.google.cloud.dialogflow.cx.v3beta1.TextInput.getDefaultInstance();
+        }
+        textBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.TextInput,
+                com.google.cloud.dialogflow.cx.v3beta1.TextInput.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.TextInputOrBuilder>(
+                (com.google.cloud.dialogflow.cx.v3beta1.TextInput) input_,
+                getParentForChildren(),
+                isClean());
+        input_ = null;
+      }
+      inputCase_ = 2;
+      onChanged();
+      ;
+      return textBuilder_;
+    }
+
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.IntentInput,
+            com.google.cloud.dialogflow.cx.v3beta1.IntentInput.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.IntentInputOrBuilder>
+        intentBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The intent to be triggered.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.IntentInput intent = 3;</code>
+     *
+     * @return Whether the intent field is set.
+     */
+    @java.lang.Override
+    public boolean hasIntent() {
+      return inputCase_ == 3;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The intent to be triggered.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.IntentInput intent = 3;</code>
+     *
+     * @return The intent.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.IntentInput getIntent() {
+      if (intentBuilder_ == null) {
+        if (inputCase_ == 3) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.IntentInput) input_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.IntentInput.getDefaultInstance();
+      } else {
+        if (inputCase_ == 3) {
+          return intentBuilder_.getMessage();
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.IntentInput.getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The intent to be triggered.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.IntentInput intent = 3;</code>
+     */
+    public Builder setIntent(com.google.cloud.dialogflow.cx.v3beta1.IntentInput value) {
+      if (intentBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        input_ = value;
+        onChanged();
+      } else {
+        intentBuilder_.setMessage(value);
+      }
+      inputCase_ = 3;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The intent to be triggered.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.IntentInput intent = 3;</code>
+     */
+    public Builder setIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.IntentInput.Builder builderForValue) {
+      if (intentBuilder_ == null) {
+        input_ = builderForValue.build();
+        onChanged();
+      } else {
+        intentBuilder_.setMessage(builderForValue.build());
+      }
+      inputCase_ = 3;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The intent to be triggered.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.IntentInput intent = 3;</code>
+     */
+    public Builder mergeIntent(com.google.cloud.dialogflow.cx.v3beta1.IntentInput value) {
+      if (intentBuilder_ == null) {
+        if (inputCase_ == 3
+            && input_ != com.google.cloud.dialogflow.cx.v3beta1.IntentInput.getDefaultInstance()) {
+          input_ =
+              com.google.cloud.dialogflow.cx.v3beta1.IntentInput.newBuilder(
+                      (com.google.cloud.dialogflow.cx.v3beta1.IntentInput) input_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          input_ = value;
+        }
+        onChanged();
+      } else {
+        if (inputCase_ == 3) {
+          intentBuilder_.mergeFrom(value);
+        }
+        intentBuilder_.setMessage(value);
+      }
+      inputCase_ = 3;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The intent to be triggered.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.IntentInput intent = 3;</code>
+     */
+    public Builder clearIntent() {
+      if (intentBuilder_ == null) {
+        if (inputCase_ == 3) {
+          inputCase_ = 0;
+          input_ = null;
+          onChanged();
+        }
+      } else {
+        if (inputCase_ == 3) {
+          inputCase_ = 0;
+          input_ = null;
+        }
+        intentBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The intent to be triggered.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.IntentInput intent = 3;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.IntentInput.Builder getIntentBuilder() {
+      return getIntentFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The intent to be triggered.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.IntentInput intent = 3;</code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.IntentInputOrBuilder getIntentOrBuilder() {
+      if ((inputCase_ == 3) && (intentBuilder_ != null)) {
+        return intentBuilder_.getMessageOrBuilder();
+      } else {
+        if (inputCase_ == 3) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.IntentInput) input_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.IntentInput.getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The intent to be triggered.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.IntentInput intent = 3;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.IntentInput,
+            com.google.cloud.dialogflow.cx.v3beta1.IntentInput.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.IntentInputOrBuilder>
+        getIntentFieldBuilder() {
+      if (intentBuilder_ == null) {
+        if (!(inputCase_ == 3)) {
+          input_ = com.google.cloud.dialogflow.cx.v3beta1.IntentInput.getDefaultInstance();
+        }
+        intentBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.IntentInput,
+                com.google.cloud.dialogflow.cx.v3beta1.IntentInput.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.IntentInputOrBuilder>(
+                (com.google.cloud.dialogflow.cx.v3beta1.IntentInput) input_,
+                getParentForChildren(),
+                isClean());
+        input_ = null;
+      }
+      inputCase_ = 3;
+      onChanged();
+      ;
+      return intentBuilder_;
+    }
+
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.AudioInput,
+            com.google.cloud.dialogflow.cx.v3beta1.AudioInput.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.AudioInputOrBuilder>
+        audioBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The natural language speech audio to be processed.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.AudioInput audio = 5;</code>
+     *
+     * @return Whether the audio field is set.
+     */
+    @java.lang.Override
+    public boolean hasAudio() {
+      return inputCase_ == 5;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The natural language speech audio to be processed.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.AudioInput audio = 5;</code>
+     *
+     * @return The audio.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.AudioInput getAudio() {
+      if (audioBuilder_ == null) {
+        if (inputCase_ == 5) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.AudioInput) input_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.AudioInput.getDefaultInstance();
+      } else {
+        if (inputCase_ == 5) {
+          return audioBuilder_.getMessage();
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.AudioInput.getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The natural language speech audio to be processed.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.AudioInput audio = 5;</code>
+     */
+    public Builder setAudio(com.google.cloud.dialogflow.cx.v3beta1.AudioInput value) {
+      if (audioBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        input_ = value;
+        onChanged();
+      } else {
+        audioBuilder_.setMessage(value);
+      }
+      inputCase_ = 5;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The natural language speech audio to be processed.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.AudioInput audio = 5;</code>
+     */
+    public Builder setAudio(
+        com.google.cloud.dialogflow.cx.v3beta1.AudioInput.Builder builderForValue) {
+      if (audioBuilder_ == null) {
+        input_ = builderForValue.build();
+        onChanged();
+      } else {
+        audioBuilder_.setMessage(builderForValue.build());
+      }
+      inputCase_ = 5;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The natural language speech audio to be processed.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.AudioInput audio = 5;</code>
+     */
+    public Builder mergeAudio(com.google.cloud.dialogflow.cx.v3beta1.AudioInput value) {
+      if (audioBuilder_ == null) {
+        if (inputCase_ == 5
+            && input_ != com.google.cloud.dialogflow.cx.v3beta1.AudioInput.getDefaultInstance()) {
+          input_ =
+              com.google.cloud.dialogflow.cx.v3beta1.AudioInput.newBuilder(
+                      (com.google.cloud.dialogflow.cx.v3beta1.AudioInput) input_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          input_ = value;
+        }
+        onChanged();
+      } else {
+        if (inputCase_ == 5) {
+          audioBuilder_.mergeFrom(value);
+        }
+        audioBuilder_.setMessage(value);
+      }
+      inputCase_ = 5;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The natural language speech audio to be processed.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.AudioInput audio = 5;</code>
+     */
+    public Builder clearAudio() {
+      if (audioBuilder_ == null) {
+        if (inputCase_ == 5) {
+          inputCase_ = 0;
+          input_ = null;
+          onChanged();
+        }
+      } else {
+        if (inputCase_ == 5) {
+          inputCase_ = 0;
+          input_ = null;
+        }
+        audioBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The natural language speech audio to be processed.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.AudioInput audio = 5;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.AudioInput.Builder getAudioBuilder() {
+      return getAudioFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The natural language speech audio to be processed.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.AudioInput audio = 5;</code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.AudioInputOrBuilder getAudioOrBuilder() {
+      if ((inputCase_ == 5) && (audioBuilder_ != null)) {
+        return audioBuilder_.getMessageOrBuilder();
+      } else {
+        if (inputCase_ == 5) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.AudioInput) input_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.AudioInput.getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The natural language speech audio to be processed.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.AudioInput audio = 5;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.AudioInput,
+            com.google.cloud.dialogflow.cx.v3beta1.AudioInput.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.AudioInputOrBuilder>
+        getAudioFieldBuilder() {
+      if (audioBuilder_ == null) {
+        if (!(inputCase_ == 5)) {
+          input_ = com.google.cloud.dialogflow.cx.v3beta1.AudioInput.getDefaultInstance();
+        }
+        audioBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.AudioInput,
+                com.google.cloud.dialogflow.cx.v3beta1.AudioInput.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.AudioInputOrBuilder>(
+                (com.google.cloud.dialogflow.cx.v3beta1.AudioInput) input_,
+                getParentForChildren(),
+                isClean());
+        input_ = null;
+      }
+      inputCase_ = 5;
+      onChanged();
+      ;
+      return audioBuilder_;
+    }
+
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The language of the input. See [Language
+     * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
+     * list of the currently supported language codes. Note that queries in the
+     * same session do not necessarily need to specify the same language.
+     * </pre>
+     *
+     * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The language of the input. See [Language
+     * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
+     * list of the currently supported language codes. Note that queries in the
+     * same session do not necessarily need to specify the same language.
+     * </pre>
+     *
+     * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The language of the input. See [Language
+     * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
+     * list of the currently supported language codes. Note that queries in the
+     * same session do not necessarily need to specify the same language.
+     * </pre>
+     *
+     * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The language of the input. See [Language
+     * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
+     * list of the currently supported language codes. Note that queries in the
+     * same session do not necessarily need to specify the same language.
+     * </pre>
+     *
+     * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The language of the input. See [Language
+     * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
+     * list of the currently supported language codes. Note that queries in the
+     * same session do not necessarily need to specify the same language.
+     * </pre>
+     *
+     * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.QueryInput)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.QueryInput)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.QueryInput DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.QueryInput();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryInput getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<QueryInput> PARSER =
+      new com.google.protobuf.AbstractParser<QueryInput>() {
+        @java.lang.Override
+        public QueryInput parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new QueryInput(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<QueryInput> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<QueryInput> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.QueryInput getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryInputOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryInputOrBuilder.java
new file mode 100644
index 000000000..5c7cea29a
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryInputOrBuilder.java
@@ -0,0 +1,163 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface QueryInputOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.QueryInput)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The natural language text to be processed.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.TextInput text = 2;</code>
+   *
+   * @return Whether the text field is set.
+   */
+  boolean hasText();
+  /**
+   *
+   *
+   * <pre>
+   * The natural language text to be processed.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.TextInput text = 2;</code>
+   *
+   * @return The text.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.TextInput getText();
+  /**
+   *
+   *
+   * <pre>
+   * The natural language text to be processed.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.TextInput text = 2;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.TextInputOrBuilder getTextOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The intent to be triggered.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.IntentInput intent = 3;</code>
+   *
+   * @return Whether the intent field is set.
+   */
+  boolean hasIntent();
+  /**
+   *
+   *
+   * <pre>
+   * The intent to be triggered.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.IntentInput intent = 3;</code>
+   *
+   * @return The intent.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.IntentInput getIntent();
+  /**
+   *
+   *
+   * <pre>
+   * The intent to be triggered.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.IntentInput intent = 3;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.IntentInputOrBuilder getIntentOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The natural language speech audio to be processed.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.AudioInput audio = 5;</code>
+   *
+   * @return Whether the audio field is set.
+   */
+  boolean hasAudio();
+  /**
+   *
+   *
+   * <pre>
+   * The natural language speech audio to be processed.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.AudioInput audio = 5;</code>
+   *
+   * @return The audio.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.AudioInput getAudio();
+  /**
+   *
+   *
+   * <pre>
+   * The natural language speech audio to be processed.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.AudioInput audio = 5;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.AudioInputOrBuilder getAudioOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The language of the input. See [Language
+   * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
+   * list of the currently supported language codes. Note that queries in the
+   * same session do not necessarily need to specify the same language.
+   * </pre>
+   *
+   * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The language of the input. See [Language
+   * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
+   * list of the currently supported language codes. Note that queries in the
+   * same session do not necessarily need to specify the same language.
+   * </pre>
+   *
+   * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+
+  public com.google.cloud.dialogflow.cx.v3beta1.QueryInput.InputCase getInputCase();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryParameters.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryParameters.java
new file mode 100644
index 000000000..bf08e7b37
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryParameters.java
@@ -0,0 +1,2255 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Represents the parameters of a conversational query.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.QueryParameters}
+ */
+public final class QueryParameters extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.QueryParameters)
+    QueryParametersOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use QueryParameters.newBuilder() to construct.
+  private QueryParameters(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private QueryParameters() {
+    timeZone_ = "";
+    sessionEntityTypes_ = java.util.Collections.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new QueryParameters();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private QueryParameters(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              timeZone_ = s;
+              break;
+            }
+          case 18:
+            {
+              com.google.type.LatLng.Builder subBuilder = null;
+              if (geoLocation_ != null) {
+                subBuilder = geoLocation_.toBuilder();
+              }
+              geoLocation_ = input.readMessage(com.google.type.LatLng.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(geoLocation_);
+                geoLocation_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 26:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                sessionEntityTypes_ =
+                    new java.util.ArrayList<
+                        com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              sessionEntityTypes_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.parser(),
+                      extensionRegistry));
+              break;
+            }
+          case 34:
+            {
+              com.google.protobuf.Struct.Builder subBuilder = null;
+              if (payload_ != null) {
+                subBuilder = payload_.toBuilder();
+              }
+              payload_ = input.readMessage(com.google.protobuf.Struct.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(payload_);
+                payload_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 42:
+            {
+              com.google.protobuf.Struct.Builder subBuilder = null;
+              if (parameters_ != null) {
+                subBuilder = parameters_.toBuilder();
+              }
+              parameters_ =
+                  input.readMessage(com.google.protobuf.Struct.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(parameters_);
+                parameters_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        sessionEntityTypes_ = java.util.Collections.unmodifiableList(sessionEntityTypes_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_QueryParameters_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_QueryParameters_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.class,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.Builder.class);
+  }
+
+  public static final int TIME_ZONE_FIELD_NUMBER = 1;
+  private volatile java.lang.Object timeZone_;
+  /**
+   *
+   *
+   * <pre>
+   * The time zone of this conversational query from the [time zone
+   * database](https://www.iana.org/time-zones), e.g., America/New_York,
+   * Europe/Paris. If not provided, the time zone specified in the agent is
+   * used.
+   * </pre>
+   *
+   * <code>string time_zone = 1;</code>
+   *
+   * @return The timeZone.
+   */
+  @java.lang.Override
+  public java.lang.String getTimeZone() {
+    java.lang.Object ref = timeZone_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      timeZone_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The time zone of this conversational query from the [time zone
+   * database](https://www.iana.org/time-zones), e.g., America/New_York,
+   * Europe/Paris. If not provided, the time zone specified in the agent is
+   * used.
+   * </pre>
+   *
+   * <code>string time_zone = 1;</code>
+   *
+   * @return The bytes for timeZone.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getTimeZoneBytes() {
+    java.lang.Object ref = timeZone_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      timeZone_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int GEO_LOCATION_FIELD_NUMBER = 2;
+  private com.google.type.LatLng geoLocation_;
+  /**
+   *
+   *
+   * <pre>
+   * The geo location of this conversational query.
+   * </pre>
+   *
+   * <code>.google.type.LatLng geo_location = 2;</code>
+   *
+   * @return Whether the geoLocation field is set.
+   */
+  @java.lang.Override
+  public boolean hasGeoLocation() {
+    return geoLocation_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The geo location of this conversational query.
+   * </pre>
+   *
+   * <code>.google.type.LatLng geo_location = 2;</code>
+   *
+   * @return The geoLocation.
+   */
+  @java.lang.Override
+  public com.google.type.LatLng getGeoLocation() {
+    return geoLocation_ == null ? com.google.type.LatLng.getDefaultInstance() : geoLocation_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The geo location of this conversational query.
+   * </pre>
+   *
+   * <code>.google.type.LatLng geo_location = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.type.LatLngOrBuilder getGeoLocationOrBuilder() {
+    return getGeoLocation();
+  }
+
+  public static final int SESSION_ENTITY_TYPES_FIELD_NUMBER = 3;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+      sessionEntityTypes_;
+  /**
+   *
+   *
+   * <pre>
+   * Additional session entity types to replace or extend developer entity types
+   * with. The entity synonyms apply to all languages and persist for the
+   * session of this query.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+      getSessionEntityTypesList() {
+    return sessionEntityTypes_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Additional session entity types to replace or extend developer entity types
+   * with. The entity synonyms apply to all languages and persist for the
+   * session of this query.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder>
+      getSessionEntityTypesOrBuilderList() {
+    return sessionEntityTypes_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Additional session entity types to replace or extend developer entity types
+   * with. The entity synonyms apply to all languages and persist for the
+   * session of this query.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+   * </code>
+   */
+  @java.lang.Override
+  public int getSessionEntityTypesCount() {
+    return sessionEntityTypes_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Additional session entity types to replace or extend developer entity types
+   * with. The entity synonyms apply to all languages and persist for the
+   * session of this query.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType getSessionEntityTypes(int index) {
+    return sessionEntityTypes_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Additional session entity types to replace or extend developer entity types
+   * with. The entity synonyms apply to all languages and persist for the
+   * session of this query.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder
+      getSessionEntityTypesOrBuilder(int index) {
+    return sessionEntityTypes_.get(index);
+  }
+
+  public static final int PAYLOAD_FIELD_NUMBER = 4;
+  private com.google.protobuf.Struct payload_;
+  /**
+   *
+   *
+   * <pre>
+   * This field can be used to pass custom data into the webhook associated with
+   * the agent. Arbitrary JSON objects are supported.
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 4;</code>
+   *
+   * @return Whether the payload field is set.
+   */
+  @java.lang.Override
+  public boolean hasPayload() {
+    return payload_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * This field can be used to pass custom data into the webhook associated with
+   * the agent. Arbitrary JSON objects are supported.
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 4;</code>
+   *
+   * @return The payload.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Struct getPayload() {
+    return payload_ == null ? com.google.protobuf.Struct.getDefaultInstance() : payload_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * This field can be used to pass custom data into the webhook associated with
+   * the agent. Arbitrary JSON objects are supported.
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 4;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.StructOrBuilder getPayloadOrBuilder() {
+    return getPayload();
+  }
+
+  public static final int PARAMETERS_FIELD_NUMBER = 5;
+  private com.google.protobuf.Struct parameters_;
+  /**
+   *
+   *
+   * <pre>
+   * Additional parameters to be put into [session
+   * parameters][SessionInfo.parameters]. To remove a
+   * parameter from the session, clients should explicitly set the parameter
+   * value to null.
+   * Depending on your protocol or client library language, this is a
+   * map, associative array, symbol table, dictionary, or JSON object
+   * composed of a collection of (MapKey, MapValue) pairs:
+   * -   MapKey type: string
+   * -   MapKey value: parameter name
+   * -   MapValue type:
+   *     -   If parameter's entity type is a composite entity: map
+   *     -   Else: string or number, depending on parameter value type
+   * -   MapValue value:
+   *     -   If parameter's entity type is a composite entity:
+   *         map from composite entity property names to property values
+   *     -   Else: parameter value
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct parameters = 5;</code>
+   *
+   * @return Whether the parameters field is set.
+   */
+  @java.lang.Override
+  public boolean hasParameters() {
+    return parameters_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Additional parameters to be put into [session
+   * parameters][SessionInfo.parameters]. To remove a
+   * parameter from the session, clients should explicitly set the parameter
+   * value to null.
+   * Depending on your protocol or client library language, this is a
+   * map, associative array, symbol table, dictionary, or JSON object
+   * composed of a collection of (MapKey, MapValue) pairs:
+   * -   MapKey type: string
+   * -   MapKey value: parameter name
+   * -   MapValue type:
+   *     -   If parameter's entity type is a composite entity: map
+   *     -   Else: string or number, depending on parameter value type
+   * -   MapValue value:
+   *     -   If parameter's entity type is a composite entity:
+   *         map from composite entity property names to property values
+   *     -   Else: parameter value
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct parameters = 5;</code>
+   *
+   * @return The parameters.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Struct getParameters() {
+    return parameters_ == null ? com.google.protobuf.Struct.getDefaultInstance() : parameters_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Additional parameters to be put into [session
+   * parameters][SessionInfo.parameters]. To remove a
+   * parameter from the session, clients should explicitly set the parameter
+   * value to null.
+   * Depending on your protocol or client library language, this is a
+   * map, associative array, symbol table, dictionary, or JSON object
+   * composed of a collection of (MapKey, MapValue) pairs:
+   * -   MapKey type: string
+   * -   MapKey value: parameter name
+   * -   MapValue type:
+   *     -   If parameter's entity type is a composite entity: map
+   *     -   Else: string or number, depending on parameter value type
+   * -   MapValue value:
+   *     -   If parameter's entity type is a composite entity:
+   *         map from composite entity property names to property values
+   *     -   Else: parameter value
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct parameters = 5;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.StructOrBuilder getParametersOrBuilder() {
+    return getParameters();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
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+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, timeZone_);
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+    }
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+    unknownFields.writeTo(output);
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+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getTimeZoneBytes().isEmpty()) {
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+    }
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+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.QueryParameters)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.QueryParameters other =
+        (com.google.cloud.dialogflow.cx.v3beta1.QueryParameters) obj;
+
+    if (!getTimeZone().equals(other.getTimeZone())) return false;
+    if (hasGeoLocation() != other.hasGeoLocation()) return false;
+    if (hasGeoLocation()) {
+      if (!getGeoLocation().equals(other.getGeoLocation())) return false;
+    }
+    if (!getSessionEntityTypesList().equals(other.getSessionEntityTypesList())) return false;
+    if (hasPayload() != other.hasPayload()) return false;
+    if (hasPayload()) {
+      if (!getPayload().equals(other.getPayload())) return false;
+    }
+    if (hasParameters() != other.hasParameters()) return false;
+    if (hasParameters()) {
+      if (!getParameters().equals(other.getParameters())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + TIME_ZONE_FIELD_NUMBER;
+    hash = (53 * hash) + getTimeZone().hashCode();
+    if (hasGeoLocation()) {
+      hash = (37 * hash) + GEO_LOCATION_FIELD_NUMBER;
+      hash = (53 * hash) + getGeoLocation().hashCode();
+    }
+    if (getSessionEntityTypesCount() > 0) {
+      hash = (37 * hash) + SESSION_ENTITY_TYPES_FIELD_NUMBER;
+      hash = (53 * hash) + getSessionEntityTypesList().hashCode();
+    }
+    if (hasPayload()) {
+      hash = (37 * hash) + PAYLOAD_FIELD_NUMBER;
+      hash = (53 * hash) + getPayload().hashCode();
+    }
+    if (hasParameters()) {
+      hash = (37 * hash) + PARAMETERS_FIELD_NUMBER;
+      hash = (53 * hash) + getParameters().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryParameters parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryParameters parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryParameters parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryParameters parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryParameters parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryParameters parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryParameters parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryParameters parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryParameters parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryParameters parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryParameters parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryParameters parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.QueryParameters prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents the parameters of a conversational query.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.QueryParameters}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.QueryParameters)
+      com.google.cloud.dialogflow.cx.v3beta1.QueryParametersOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_QueryParameters_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_QueryParameters_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.class,
+              com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getSessionEntityTypesFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      timeZone_ = "";
+
+      if (geoLocationBuilder_ == null) {
+        geoLocation_ = null;
+      } else {
+        geoLocation_ = null;
+        geoLocationBuilder_ = null;
+      }
+      if (sessionEntityTypesBuilder_ == null) {
+        sessionEntityTypes_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        sessionEntityTypesBuilder_.clear();
+      }
+      if (payloadBuilder_ == null) {
+        payload_ = null;
+      } else {
+        payload_ = null;
+        payloadBuilder_ = null;
+      }
+      if (parametersBuilder_ == null) {
+        parameters_ = null;
+      } else {
+        parameters_ = null;
+        parametersBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_QueryParameters_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryParameters getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryParameters build() {
+      com.google.cloud.dialogflow.cx.v3beta1.QueryParameters result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryParameters buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.QueryParameters result =
+          new com.google.cloud.dialogflow.cx.v3beta1.QueryParameters(this);
+      int from_bitField0_ = bitField0_;
+      result.timeZone_ = timeZone_;
+      if (geoLocationBuilder_ == null) {
+        result.geoLocation_ = geoLocation_;
+      } else {
+        result.geoLocation_ = geoLocationBuilder_.build();
+      }
+      if (sessionEntityTypesBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          sessionEntityTypes_ = java.util.Collections.unmodifiableList(sessionEntityTypes_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.sessionEntityTypes_ = sessionEntityTypes_;
+      } else {
+        result.sessionEntityTypes_ = sessionEntityTypesBuilder_.build();
+      }
+      if (payloadBuilder_ == null) {
+        result.payload_ = payload_;
+      } else {
+        result.payload_ = payloadBuilder_.build();
+      }
+      if (parametersBuilder_ == null) {
+        result.parameters_ = parameters_;
+      } else {
+        result.parameters_ = parametersBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.QueryParameters) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.QueryParameters) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.QueryParameters other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.getDefaultInstance())
+        return this;
+      if (!other.getTimeZone().isEmpty()) {
+        timeZone_ = other.timeZone_;
+        onChanged();
+      }
+      if (other.hasGeoLocation()) {
+        mergeGeoLocation(other.getGeoLocation());
+      }
+      if (sessionEntityTypesBuilder_ == null) {
+        if (!other.sessionEntityTypes_.isEmpty()) {
+          if (sessionEntityTypes_.isEmpty()) {
+            sessionEntityTypes_ = other.sessionEntityTypes_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureSessionEntityTypesIsMutable();
+            sessionEntityTypes_.addAll(other.sessionEntityTypes_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.sessionEntityTypes_.isEmpty()) {
+          if (sessionEntityTypesBuilder_.isEmpty()) {
+            sessionEntityTypesBuilder_.dispose();
+            sessionEntityTypesBuilder_ = null;
+            sessionEntityTypes_ = other.sessionEntityTypes_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            sessionEntityTypesBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getSessionEntityTypesFieldBuilder()
+                    : null;
+          } else {
+            sessionEntityTypesBuilder_.addAllMessages(other.sessionEntityTypes_);
+          }
+        }
+      }
+      if (other.hasPayload()) {
+        mergePayload(other.getPayload());
+      }
+      if (other.hasParameters()) {
+        mergeParameters(other.getParameters());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.QueryParameters parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.QueryParameters) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.lang.Object timeZone_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The time zone of this conversational query from the [time zone
+     * database](https://www.iana.org/time-zones), e.g., America/New_York,
+     * Europe/Paris. If not provided, the time zone specified in the agent is
+     * used.
+     * </pre>
+     *
+     * <code>string time_zone = 1;</code>
+     *
+     * @return The timeZone.
+     */
+    public java.lang.String getTimeZone() {
+      java.lang.Object ref = timeZone_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        timeZone_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The time zone of this conversational query from the [time zone
+     * database](https://www.iana.org/time-zones), e.g., America/New_York,
+     * Europe/Paris. If not provided, the time zone specified in the agent is
+     * used.
+     * </pre>
+     *
+     * <code>string time_zone = 1;</code>
+     *
+     * @return The bytes for timeZone.
+     */
+    public com.google.protobuf.ByteString getTimeZoneBytes() {
+      java.lang.Object ref = timeZone_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        timeZone_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The time zone of this conversational query from the [time zone
+     * database](https://www.iana.org/time-zones), e.g., America/New_York,
+     * Europe/Paris. If not provided, the time zone specified in the agent is
+     * used.
+     * </pre>
+     *
+     * <code>string time_zone = 1;</code>
+     *
+     * @param value The timeZone to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTimeZone(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      timeZone_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The time zone of this conversational query from the [time zone
+     * database](https://www.iana.org/time-zones), e.g., America/New_York,
+     * Europe/Paris. If not provided, the time zone specified in the agent is
+     * used.
+     * </pre>
+     *
+     * <code>string time_zone = 1;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearTimeZone() {
+
+      timeZone_ = getDefaultInstance().getTimeZone();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The time zone of this conversational query from the [time zone
+     * database](https://www.iana.org/time-zones), e.g., America/New_York,
+     * Europe/Paris. If not provided, the time zone specified in the agent is
+     * used.
+     * </pre>
+     *
+     * <code>string time_zone = 1;</code>
+     *
+     * @param value The bytes for timeZone to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTimeZoneBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      timeZone_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.type.LatLng geoLocation_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.type.LatLng, com.google.type.LatLng.Builder, com.google.type.LatLngOrBuilder>
+        geoLocationBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The geo location of this conversational query.
+     * </pre>
+     *
+     * <code>.google.type.LatLng geo_location = 2;</code>
+     *
+     * @return Whether the geoLocation field is set.
+     */
+    public boolean hasGeoLocation() {
+      return geoLocationBuilder_ != null || geoLocation_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The geo location of this conversational query.
+     * </pre>
+     *
+     * <code>.google.type.LatLng geo_location = 2;</code>
+     *
+     * @return The geoLocation.
+     */
+    public com.google.type.LatLng getGeoLocation() {
+      if (geoLocationBuilder_ == null) {
+        return geoLocation_ == null ? com.google.type.LatLng.getDefaultInstance() : geoLocation_;
+      } else {
+        return geoLocationBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The geo location of this conversational query.
+     * </pre>
+     *
+     * <code>.google.type.LatLng geo_location = 2;</code>
+     */
+    public Builder setGeoLocation(com.google.type.LatLng value) {
+      if (geoLocationBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        geoLocation_ = value;
+        onChanged();
+      } else {
+        geoLocationBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The geo location of this conversational query.
+     * </pre>
+     *
+     * <code>.google.type.LatLng geo_location = 2;</code>
+     */
+    public Builder setGeoLocation(com.google.type.LatLng.Builder builderForValue) {
+      if (geoLocationBuilder_ == null) {
+        geoLocation_ = builderForValue.build();
+        onChanged();
+      } else {
+        geoLocationBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The geo location of this conversational query.
+     * </pre>
+     *
+     * <code>.google.type.LatLng geo_location = 2;</code>
+     */
+    public Builder mergeGeoLocation(com.google.type.LatLng value) {
+      if (geoLocationBuilder_ == null) {
+        if (geoLocation_ != null) {
+          geoLocation_ =
+              com.google.type.LatLng.newBuilder(geoLocation_).mergeFrom(value).buildPartial();
+        } else {
+          geoLocation_ = value;
+        }
+        onChanged();
+      } else {
+        geoLocationBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The geo location of this conversational query.
+     * </pre>
+     *
+     * <code>.google.type.LatLng geo_location = 2;</code>
+     */
+    public Builder clearGeoLocation() {
+      if (geoLocationBuilder_ == null) {
+        geoLocation_ = null;
+        onChanged();
+      } else {
+        geoLocation_ = null;
+        geoLocationBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The geo location of this conversational query.
+     * </pre>
+     *
+     * <code>.google.type.LatLng geo_location = 2;</code>
+     */
+    public com.google.type.LatLng.Builder getGeoLocationBuilder() {
+
+      onChanged();
+      return getGeoLocationFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The geo location of this conversational query.
+     * </pre>
+     *
+     * <code>.google.type.LatLng geo_location = 2;</code>
+     */
+    public com.google.type.LatLngOrBuilder getGeoLocationOrBuilder() {
+      if (geoLocationBuilder_ != null) {
+        return geoLocationBuilder_.getMessageOrBuilder();
+      } else {
+        return geoLocation_ == null ? com.google.type.LatLng.getDefaultInstance() : geoLocation_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The geo location of this conversational query.
+     * </pre>
+     *
+     * <code>.google.type.LatLng geo_location = 2;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.type.LatLng, com.google.type.LatLng.Builder, com.google.type.LatLngOrBuilder>
+        getGeoLocationFieldBuilder() {
+      if (geoLocationBuilder_ == null) {
+        geoLocationBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.type.LatLng,
+                com.google.type.LatLng.Builder,
+                com.google.type.LatLngOrBuilder>(
+                getGeoLocation(), getParentForChildren(), isClean());
+        geoLocation_ = null;
+      }
+      return geoLocationBuilder_;
+    }
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+        sessionEntityTypes_ = java.util.Collections.emptyList();
+
+    private void ensureSessionEntityTypesIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        sessionEntityTypes_ =
+            new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>(
+                sessionEntityTypes_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder>
+        sessionEntityTypesBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * Additional session entity types to replace or extend developer entity types
+     * with. The entity synonyms apply to all languages and persist for the
+     * session of this query.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+        getSessionEntityTypesList() {
+      if (sessionEntityTypesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(sessionEntityTypes_);
+      } else {
+        return sessionEntityTypesBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional session entity types to replace or extend developer entity types
+     * with. The entity synonyms apply to all languages and persist for the
+     * session of this query.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+     * </code>
+     */
+    public int getSessionEntityTypesCount() {
+      if (sessionEntityTypesBuilder_ == null) {
+        return sessionEntityTypes_.size();
+      } else {
+        return sessionEntityTypesBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional session entity types to replace or extend developer entity types
+     * with. The entity synonyms apply to all languages and persist for the
+     * session of this query.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType getSessionEntityTypes(
+        int index) {
+      if (sessionEntityTypesBuilder_ == null) {
+        return sessionEntityTypes_.get(index);
+      } else {
+        return sessionEntityTypesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional session entity types to replace or extend developer entity types
+     * with. The entity synonyms apply to all languages and persist for the
+     * session of this query.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+     * </code>
+     */
+    public Builder setSessionEntityTypes(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType value) {
+      if (sessionEntityTypesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureSessionEntityTypesIsMutable();
+        sessionEntityTypes_.set(index, value);
+        onChanged();
+      } else {
+        sessionEntityTypesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional session entity types to replace or extend developer entity types
+     * with. The entity synonyms apply to all languages and persist for the
+     * session of this query.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+     * </code>
+     */
+    public Builder setSessionEntityTypes(
+        int index,
+        com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder builderForValue) {
+      if (sessionEntityTypesBuilder_ == null) {
+        ensureSessionEntityTypesIsMutable();
+        sessionEntityTypes_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        sessionEntityTypesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional session entity types to replace or extend developer entity types
+     * with. The entity synonyms apply to all languages and persist for the
+     * session of this query.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+     * </code>
+     */
+    public Builder addSessionEntityTypes(
+        com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType value) {
+      if (sessionEntityTypesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureSessionEntityTypesIsMutable();
+        sessionEntityTypes_.add(value);
+        onChanged();
+      } else {
+        sessionEntityTypesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional session entity types to replace or extend developer entity types
+     * with. The entity synonyms apply to all languages and persist for the
+     * session of this query.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+     * </code>
+     */
+    public Builder addSessionEntityTypes(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType value) {
+      if (sessionEntityTypesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureSessionEntityTypesIsMutable();
+        sessionEntityTypes_.add(index, value);
+        onChanged();
+      } else {
+        sessionEntityTypesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional session entity types to replace or extend developer entity types
+     * with. The entity synonyms apply to all languages and persist for the
+     * session of this query.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+     * </code>
+     */
+    public Builder addSessionEntityTypes(
+        com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder builderForValue) {
+      if (sessionEntityTypesBuilder_ == null) {
+        ensureSessionEntityTypesIsMutable();
+        sessionEntityTypes_.add(builderForValue.build());
+        onChanged();
+      } else {
+        sessionEntityTypesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional session entity types to replace or extend developer entity types
+     * with. The entity synonyms apply to all languages and persist for the
+     * session of this query.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+     * </code>
+     */
+    public Builder addSessionEntityTypes(
+        int index,
+        com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder builderForValue) {
+      if (sessionEntityTypesBuilder_ == null) {
+        ensureSessionEntityTypesIsMutable();
+        sessionEntityTypes_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        sessionEntityTypesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional session entity types to replace or extend developer entity types
+     * with. The entity synonyms apply to all languages and persist for the
+     * session of this query.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+     * </code>
+     */
+    public Builder addAllSessionEntityTypes(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+            values) {
+      if (sessionEntityTypesBuilder_ == null) {
+        ensureSessionEntityTypesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, sessionEntityTypes_);
+        onChanged();
+      } else {
+        sessionEntityTypesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional session entity types to replace or extend developer entity types
+     * with. The entity synonyms apply to all languages and persist for the
+     * session of this query.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+     * </code>
+     */
+    public Builder clearSessionEntityTypes() {
+      if (sessionEntityTypesBuilder_ == null) {
+        sessionEntityTypes_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        sessionEntityTypesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional session entity types to replace or extend developer entity types
+     * with. The entity synonyms apply to all languages and persist for the
+     * session of this query.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+     * </code>
+     */
+    public Builder removeSessionEntityTypes(int index) {
+      if (sessionEntityTypesBuilder_ == null) {
+        ensureSessionEntityTypesIsMutable();
+        sessionEntityTypes_.remove(index);
+        onChanged();
+      } else {
+        sessionEntityTypesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional session entity types to replace or extend developer entity types
+     * with. The entity synonyms apply to all languages and persist for the
+     * session of this query.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder
+        getSessionEntityTypesBuilder(int index) {
+      return getSessionEntityTypesFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional session entity types to replace or extend developer entity types
+     * with. The entity synonyms apply to all languages and persist for the
+     * session of this query.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder
+        getSessionEntityTypesOrBuilder(int index) {
+      if (sessionEntityTypesBuilder_ == null) {
+        return sessionEntityTypes_.get(index);
+      } else {
+        return sessionEntityTypesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional session entity types to replace or extend developer entity types
+     * with. The entity synonyms apply to all languages and persist for the
+     * session of this query.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+     * </code>
+     */
+    public java.util.List<
+            ? extends com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder>
+        getSessionEntityTypesOrBuilderList() {
+      if (sessionEntityTypesBuilder_ != null) {
+        return sessionEntityTypesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(sessionEntityTypes_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional session entity types to replace or extend developer entity types
+     * with. The entity synonyms apply to all languages and persist for the
+     * session of this query.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder
+        addSessionEntityTypesBuilder() {
+      return getSessionEntityTypesFieldBuilder()
+          .addBuilder(
+              com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional session entity types to replace or extend developer entity types
+     * with. The entity synonyms apply to all languages and persist for the
+     * session of this query.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder
+        addSessionEntityTypesBuilder(int index) {
+      return getSessionEntityTypesFieldBuilder()
+          .addBuilder(
+              index, com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional session entity types to replace or extend developer entity types
+     * with. The entity synonyms apply to all languages and persist for the
+     * session of this query.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder>
+        getSessionEntityTypesBuilderList() {
+      return getSessionEntityTypesFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder>
+        getSessionEntityTypesFieldBuilder() {
+      if (sessionEntityTypesBuilder_ == null) {
+        sessionEntityTypesBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType,
+                com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder>(
+                sessionEntityTypes_,
+                ((bitField0_ & 0x00000001) != 0),
+                getParentForChildren(),
+                isClean());
+        sessionEntityTypes_ = null;
+      }
+      return sessionEntityTypesBuilder_;
+    }
+
+    private com.google.protobuf.Struct payload_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Struct,
+            com.google.protobuf.Struct.Builder,
+            com.google.protobuf.StructOrBuilder>
+        payloadBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * This field can be used to pass custom data into the webhook associated with
+     * the agent. Arbitrary JSON objects are supported.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 4;</code>
+     *
+     * @return Whether the payload field is set.
+     */
+    public boolean hasPayload() {
+      return payloadBuilder_ != null || payload_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * This field can be used to pass custom data into the webhook associated with
+     * the agent. Arbitrary JSON objects are supported.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 4;</code>
+     *
+     * @return The payload.
+     */
+    public com.google.protobuf.Struct getPayload() {
+      if (payloadBuilder_ == null) {
+        return payload_ == null ? com.google.protobuf.Struct.getDefaultInstance() : payload_;
+      } else {
+        return payloadBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * This field can be used to pass custom data into the webhook associated with
+     * the agent. Arbitrary JSON objects are supported.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 4;</code>
+     */
+    public Builder setPayload(com.google.protobuf.Struct value) {
+      if (payloadBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        payload_ = value;
+        onChanged();
+      } else {
+        payloadBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * This field can be used to pass custom data into the webhook associated with
+     * the agent. Arbitrary JSON objects are supported.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 4;</code>
+     */
+    public Builder setPayload(com.google.protobuf.Struct.Builder builderForValue) {
+      if (payloadBuilder_ == null) {
+        payload_ = builderForValue.build();
+        onChanged();
+      } else {
+        payloadBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * This field can be used to pass custom data into the webhook associated with
+     * the agent. Arbitrary JSON objects are supported.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 4;</code>
+     */
+    public Builder mergePayload(com.google.protobuf.Struct value) {
+      if (payloadBuilder_ == null) {
+        if (payload_ != null) {
+          payload_ =
+              com.google.protobuf.Struct.newBuilder(payload_).mergeFrom(value).buildPartial();
+        } else {
+          payload_ = value;
+        }
+        onChanged();
+      } else {
+        payloadBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * This field can be used to pass custom data into the webhook associated with
+     * the agent. Arbitrary JSON objects are supported.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 4;</code>
+     */
+    public Builder clearPayload() {
+      if (payloadBuilder_ == null) {
+        payload_ = null;
+        onChanged();
+      } else {
+        payload_ = null;
+        payloadBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * This field can be used to pass custom data into the webhook associated with
+     * the agent. Arbitrary JSON objects are supported.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 4;</code>
+     */
+    public com.google.protobuf.Struct.Builder getPayloadBuilder() {
+
+      onChanged();
+      return getPayloadFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * This field can be used to pass custom data into the webhook associated with
+     * the agent. Arbitrary JSON objects are supported.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 4;</code>
+     */
+    public com.google.protobuf.StructOrBuilder getPayloadOrBuilder() {
+      if (payloadBuilder_ != null) {
+        return payloadBuilder_.getMessageOrBuilder();
+      } else {
+        return payload_ == null ? com.google.protobuf.Struct.getDefaultInstance() : payload_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * This field can be used to pass custom data into the webhook associated with
+     * the agent. Arbitrary JSON objects are supported.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 4;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Struct,
+            com.google.protobuf.Struct.Builder,
+            com.google.protobuf.StructOrBuilder>
+        getPayloadFieldBuilder() {
+      if (payloadBuilder_ == null) {
+        payloadBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.Struct,
+                com.google.protobuf.Struct.Builder,
+                com.google.protobuf.StructOrBuilder>(
+                getPayload(), getParentForChildren(), isClean());
+        payload_ = null;
+      }
+      return payloadBuilder_;
+    }
+
+    private com.google.protobuf.Struct parameters_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Struct,
+            com.google.protobuf.Struct.Builder,
+            com.google.protobuf.StructOrBuilder>
+        parametersBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Additional parameters to be put into [session
+     * parameters][SessionInfo.parameters]. To remove a
+     * parameter from the session, clients should explicitly set the parameter
+     * value to null.
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 5;</code>
+     *
+     * @return Whether the parameters field is set.
+     */
+    public boolean hasParameters() {
+      return parametersBuilder_ != null || parameters_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional parameters to be put into [session
+     * parameters][SessionInfo.parameters]. To remove a
+     * parameter from the session, clients should explicitly set the parameter
+     * value to null.
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 5;</code>
+     *
+     * @return The parameters.
+     */
+    public com.google.protobuf.Struct getParameters() {
+      if (parametersBuilder_ == null) {
+        return parameters_ == null ? com.google.protobuf.Struct.getDefaultInstance() : parameters_;
+      } else {
+        return parametersBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional parameters to be put into [session
+     * parameters][SessionInfo.parameters]. To remove a
+     * parameter from the session, clients should explicitly set the parameter
+     * value to null.
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 5;</code>
+     */
+    public Builder setParameters(com.google.protobuf.Struct value) {
+      if (parametersBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        parameters_ = value;
+        onChanged();
+      } else {
+        parametersBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional parameters to be put into [session
+     * parameters][SessionInfo.parameters]. To remove a
+     * parameter from the session, clients should explicitly set the parameter
+     * value to null.
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 5;</code>
+     */
+    public Builder setParameters(com.google.protobuf.Struct.Builder builderForValue) {
+      if (parametersBuilder_ == null) {
+        parameters_ = builderForValue.build();
+        onChanged();
+      } else {
+        parametersBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional parameters to be put into [session
+     * parameters][SessionInfo.parameters]. To remove a
+     * parameter from the session, clients should explicitly set the parameter
+     * value to null.
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 5;</code>
+     */
+    public Builder mergeParameters(com.google.protobuf.Struct value) {
+      if (parametersBuilder_ == null) {
+        if (parameters_ != null) {
+          parameters_ =
+              com.google.protobuf.Struct.newBuilder(parameters_).mergeFrom(value).buildPartial();
+        } else {
+          parameters_ = value;
+        }
+        onChanged();
+      } else {
+        parametersBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional parameters to be put into [session
+     * parameters][SessionInfo.parameters]. To remove a
+     * parameter from the session, clients should explicitly set the parameter
+     * value to null.
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 5;</code>
+     */
+    public Builder clearParameters() {
+      if (parametersBuilder_ == null) {
+        parameters_ = null;
+        onChanged();
+      } else {
+        parameters_ = null;
+        parametersBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional parameters to be put into [session
+     * parameters][SessionInfo.parameters]. To remove a
+     * parameter from the session, clients should explicitly set the parameter
+     * value to null.
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 5;</code>
+     */
+    public com.google.protobuf.Struct.Builder getParametersBuilder() {
+
+      onChanged();
+      return getParametersFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional parameters to be put into [session
+     * parameters][SessionInfo.parameters]. To remove a
+     * parameter from the session, clients should explicitly set the parameter
+     * value to null.
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 5;</code>
+     */
+    public com.google.protobuf.StructOrBuilder getParametersOrBuilder() {
+      if (parametersBuilder_ != null) {
+        return parametersBuilder_.getMessageOrBuilder();
+      } else {
+        return parameters_ == null ? com.google.protobuf.Struct.getDefaultInstance() : parameters_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Additional parameters to be put into [session
+     * parameters][SessionInfo.parameters]. To remove a
+     * parameter from the session, clients should explicitly set the parameter
+     * value to null.
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 5;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Struct,
+            com.google.protobuf.Struct.Builder,
+            com.google.protobuf.StructOrBuilder>
+        getParametersFieldBuilder() {
+      if (parametersBuilder_ == null) {
+        parametersBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.Struct,
+                com.google.protobuf.Struct.Builder,
+                com.google.protobuf.StructOrBuilder>(
+                getParameters(), getParentForChildren(), isClean());
+        parameters_ = null;
+      }
+      return parametersBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.QueryParameters)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.QueryParameters)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.QueryParameters DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.QueryParameters();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryParameters getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<QueryParameters> PARSER =
+      new com.google.protobuf.AbstractParser<QueryParameters>() {
+        @java.lang.Override
+        public QueryParameters parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new QueryParameters(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<QueryParameters> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<QueryParameters> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.QueryParameters getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryParametersOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryParametersOrBuilder.java
new file mode 100644
index 000000000..65deafe26
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryParametersOrBuilder.java
@@ -0,0 +1,278 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface QueryParametersOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.QueryParameters)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The time zone of this conversational query from the [time zone
+   * database](https://www.iana.org/time-zones), e.g., America/New_York,
+   * Europe/Paris. If not provided, the time zone specified in the agent is
+   * used.
+   * </pre>
+   *
+   * <code>string time_zone = 1;</code>
+   *
+   * @return The timeZone.
+   */
+  java.lang.String getTimeZone();
+  /**
+   *
+   *
+   * <pre>
+   * The time zone of this conversational query from the [time zone
+   * database](https://www.iana.org/time-zones), e.g., America/New_York,
+   * Europe/Paris. If not provided, the time zone specified in the agent is
+   * used.
+   * </pre>
+   *
+   * <code>string time_zone = 1;</code>
+   *
+   * @return The bytes for timeZone.
+   */
+  com.google.protobuf.ByteString getTimeZoneBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The geo location of this conversational query.
+   * </pre>
+   *
+   * <code>.google.type.LatLng geo_location = 2;</code>
+   *
+   * @return Whether the geoLocation field is set.
+   */
+  boolean hasGeoLocation();
+  /**
+   *
+   *
+   * <pre>
+   * The geo location of this conversational query.
+   * </pre>
+   *
+   * <code>.google.type.LatLng geo_location = 2;</code>
+   *
+   * @return The geoLocation.
+   */
+  com.google.type.LatLng getGeoLocation();
+  /**
+   *
+   *
+   * <pre>
+   * The geo location of this conversational query.
+   * </pre>
+   *
+   * <code>.google.type.LatLng geo_location = 2;</code>
+   */
+  com.google.type.LatLngOrBuilder getGeoLocationOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Additional session entity types to replace or extend developer entity types
+   * with. The entity synonyms apply to all languages and persist for the
+   * session of this query.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+   * </code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType>
+      getSessionEntityTypesList();
+  /**
+   *
+   *
+   * <pre>
+   * Additional session entity types to replace or extend developer entity types
+   * with. The entity synonyms apply to all languages and persist for the
+   * session of this query.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType getSessionEntityTypes(int index);
+  /**
+   *
+   *
+   * <pre>
+   * Additional session entity types to replace or extend developer entity types
+   * with. The entity synonyms apply to all languages and persist for the
+   * session of this query.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+   * </code>
+   */
+  int getSessionEntityTypesCount();
+  /**
+   *
+   *
+   * <pre>
+   * Additional session entity types to replace or extend developer entity types
+   * with. The entity synonyms apply to all languages and persist for the
+   * session of this query.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+   * </code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder>
+      getSessionEntityTypesOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * Additional session entity types to replace or extend developer entity types
+   * with. The entity synonyms apply to all languages and persist for the
+   * session of this query.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_types = 3;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder getSessionEntityTypesOrBuilder(
+      int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * This field can be used to pass custom data into the webhook associated with
+   * the agent. Arbitrary JSON objects are supported.
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 4;</code>
+   *
+   * @return Whether the payload field is set.
+   */
+  boolean hasPayload();
+  /**
+   *
+   *
+   * <pre>
+   * This field can be used to pass custom data into the webhook associated with
+   * the agent. Arbitrary JSON objects are supported.
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 4;</code>
+   *
+   * @return The payload.
+   */
+  com.google.protobuf.Struct getPayload();
+  /**
+   *
+   *
+   * <pre>
+   * This field can be used to pass custom data into the webhook associated with
+   * the agent. Arbitrary JSON objects are supported.
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 4;</code>
+   */
+  com.google.protobuf.StructOrBuilder getPayloadOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Additional parameters to be put into [session
+   * parameters][SessionInfo.parameters]. To remove a
+   * parameter from the session, clients should explicitly set the parameter
+   * value to null.
+   * Depending on your protocol or client library language, this is a
+   * map, associative array, symbol table, dictionary, or JSON object
+   * composed of a collection of (MapKey, MapValue) pairs:
+   * -   MapKey type: string
+   * -   MapKey value: parameter name
+   * -   MapValue type:
+   *     -   If parameter's entity type is a composite entity: map
+   *     -   Else: string or number, depending on parameter value type
+   * -   MapValue value:
+   *     -   If parameter's entity type is a composite entity:
+   *         map from composite entity property names to property values
+   *     -   Else: parameter value
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct parameters = 5;</code>
+   *
+   * @return Whether the parameters field is set.
+   */
+  boolean hasParameters();
+  /**
+   *
+   *
+   * <pre>
+   * Additional parameters to be put into [session
+   * parameters][SessionInfo.parameters]. To remove a
+   * parameter from the session, clients should explicitly set the parameter
+   * value to null.
+   * Depending on your protocol or client library language, this is a
+   * map, associative array, symbol table, dictionary, or JSON object
+   * composed of a collection of (MapKey, MapValue) pairs:
+   * -   MapKey type: string
+   * -   MapKey value: parameter name
+   * -   MapValue type:
+   *     -   If parameter's entity type is a composite entity: map
+   *     -   Else: string or number, depending on parameter value type
+   * -   MapValue value:
+   *     -   If parameter's entity type is a composite entity:
+   *         map from composite entity property names to property values
+   *     -   Else: parameter value
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct parameters = 5;</code>
+   *
+   * @return The parameters.
+   */
+  com.google.protobuf.Struct getParameters();
+  /**
+   *
+   *
+   * <pre>
+   * Additional parameters to be put into [session
+   * parameters][SessionInfo.parameters]. To remove a
+   * parameter from the session, clients should explicitly set the parameter
+   * value to null.
+   * Depending on your protocol or client library language, this is a
+   * map, associative array, symbol table, dictionary, or JSON object
+   * composed of a collection of (MapKey, MapValue) pairs:
+   * -   MapKey type: string
+   * -   MapKey value: parameter name
+   * -   MapValue type:
+   *     -   If parameter's entity type is a composite entity: map
+   *     -   Else: string or number, depending on parameter value type
+   * -   MapValue value:
+   *     -   If parameter's entity type is a composite entity:
+   *         map from composite entity property names to property values
+   *     -   Else: parameter value
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct parameters = 5;</code>
+   */
+  com.google.protobuf.StructOrBuilder getParametersOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryResult.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryResult.java
new file mode 100644
index 000000000..ce42da2a7
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryResult.java
@@ -0,0 +1,4911 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Represents the result of a conversational query.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.QueryResult}
+ */
+public final class QueryResult extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.QueryResult)
+    QueryResultOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use QueryResult.newBuilder() to construct.
+  private QueryResult(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private QueryResult() {
+    languageCode_ = "";
+    responseMessages_ = java.util.Collections.emptyList();
+    webhookStatuses_ = java.util.Collections.emptyList();
+    webhookPayloads_ = java.util.Collections.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new QueryResult();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private QueryResult(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+              queryCase_ = 1;
+              query_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              languageCode_ = s;
+              break;
+            }
+          case 26:
+            {
+              com.google.protobuf.Struct.Builder subBuilder = null;
+              if (parameters_ != null) {
+                subBuilder = parameters_.toBuilder();
+              }
+              parameters_ =
+                  input.readMessage(com.google.protobuf.Struct.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(parameters_);
+                parameters_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 34:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                responseMessages_ =
+                    new java.util.ArrayList<
+                        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              responseMessages_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.parser(),
+                      extensionRegistry));
+              break;
+            }
+          case 50:
+            {
+              if (!((mutable_bitField0_ & 0x00000004) != 0)) {
+                webhookPayloads_ = new java.util.ArrayList<com.google.protobuf.Struct>();
+                mutable_bitField0_ |= 0x00000004;
+              }
+              webhookPayloads_.add(
+                  input.readMessage(com.google.protobuf.Struct.parser(), extensionRegistry));
+              break;
+            }
+          case 58:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Page.Builder subBuilder = null;
+              if (currentPage_ != null) {
+                subBuilder = currentPage_.toBuilder();
+              }
+              currentPage_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Page.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(currentPage_);
+                currentPage_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 66:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder subBuilder = null;
+              if (intent_ != null) {
+                subBuilder = intent_.toBuilder();
+              }
+              intent_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Intent.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(intent_);
+                intent_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 77:
+            {
+              intentDetectionConfidence_ = input.readFloat();
+              break;
+            }
+          case 82:
+            {
+              com.google.protobuf.Struct.Builder subBuilder = null;
+              if (diagnosticInfo_ != null) {
+                subBuilder = diagnosticInfo_.toBuilder();
+              }
+              diagnosticInfo_ =
+                  input.readMessage(com.google.protobuf.Struct.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(diagnosticInfo_);
+                diagnosticInfo_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 90:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+              queryCase_ = 11;
+              query_ = s;
+              break;
+            }
+          case 98:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+              queryCase_ = 12;
+              query_ = s;
+              break;
+            }
+          case 106:
+            {
+              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
+                webhookStatuses_ = new java.util.ArrayList<com.google.rpc.Status>();
+                mutable_bitField0_ |= 0x00000002;
+              }
+              webhookStatuses_.add(
+                  input.readMessage(com.google.rpc.Status.parser(), extensionRegistry));
+              break;
+            }
+          case 114:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+              queryCase_ = 14;
+              query_ = s;
+              break;
+            }
+          case 122:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Match.Builder subBuilder = null;
+              if (match_ != null) {
+                subBuilder = match_.toBuilder();
+              }
+              match_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Match.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(match_);
+                match_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        responseMessages_ = java.util.Collections.unmodifiableList(responseMessages_);
+      }
+      if (((mutable_bitField0_ & 0x00000004) != 0)) {
+        webhookPayloads_ = java.util.Collections.unmodifiableList(webhookPayloads_);
+      }
+      if (((mutable_bitField0_ & 0x00000002) != 0)) {
+        webhookStatuses_ = java.util.Collections.unmodifiableList(webhookStatuses_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_QueryResult_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_QueryResult_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.QueryResult.class,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryResult.Builder.class);
+  }
+
+  private int queryCase_ = 0;
+  private java.lang.Object query_;
+
+  public enum QueryCase
+      implements
+          com.google.protobuf.Internal.EnumLite,
+          com.google.protobuf.AbstractMessage.InternalOneOfEnum {
+    TEXT(1),
+    TRIGGER_INTENT(11),
+    TRANSCRIPT(12),
+    TRIGGER_EVENT(14),
+    QUERY_NOT_SET(0);
+    private final int value;
+
+    private QueryCase(int value) {
+      this.value = value;
+    }
+    /**
+     * @param value The number of the enum to look for.
+     * @return The enum associated with the given number.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static QueryCase valueOf(int value) {
+      return forNumber(value);
+    }
+
+    public static QueryCase forNumber(int value) {
+      switch (value) {
+        case 1:
+          return TEXT;
+        case 11:
+          return TRIGGER_INTENT;
+        case 12:
+          return TRANSCRIPT;
+        case 14:
+          return TRIGGER_EVENT;
+        case 0:
+          return QUERY_NOT_SET;
+        default:
+          return null;
+      }
+    }
+
+    public int getNumber() {
+      return this.value;
+    }
+  };
+
+  public QueryCase getQueryCase() {
+    return QueryCase.forNumber(queryCase_);
+  }
+
+  public static final int TEXT_FIELD_NUMBER = 1;
+  /**
+   *
+   *
+   * <pre>
+   * If [natural language text][google.cloud.dialogflow.cx.v3beta1.TextInput] was provided as input, this field
+   * will contain a copy of the text.
+   * </pre>
+   *
+   * <code>string text = 1;</code>
+   *
+   * @return The text.
+   */
+  public java.lang.String getText() {
+    java.lang.Object ref = "";
+    if (queryCase_ == 1) {
+      ref = query_;
+    }
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      if (queryCase_ == 1) {
+        query_ = s;
+      }
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * If [natural language text][google.cloud.dialogflow.cx.v3beta1.TextInput] was provided as input, this field
+   * will contain a copy of the text.
+   * </pre>
+   *
+   * <code>string text = 1;</code>
+   *
+   * @return The bytes for text.
+   */
+  public com.google.protobuf.ByteString getTextBytes() {
+    java.lang.Object ref = "";
+    if (queryCase_ == 1) {
+      ref = query_;
+    }
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      if (queryCase_ == 1) {
+        query_ = b;
+      }
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int TRIGGER_INTENT_FIELD_NUMBER = 11;
+  /**
+   *
+   *
+   * <pre>
+   * If an [intent][google.cloud.dialogflow.cx.v3beta1.IntentInput] was provided as input, this field will
+   * contain a copy of the intent identifier.
+   * </pre>
+   *
+   * <code>string trigger_intent = 11;</code>
+   *
+   * @return The triggerIntent.
+   */
+  public java.lang.String getTriggerIntent() {
+    java.lang.Object ref = "";
+    if (queryCase_ == 11) {
+      ref = query_;
+    }
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      if (queryCase_ == 11) {
+        query_ = s;
+      }
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * If an [intent][google.cloud.dialogflow.cx.v3beta1.IntentInput] was provided as input, this field will
+   * contain a copy of the intent identifier.
+   * </pre>
+   *
+   * <code>string trigger_intent = 11;</code>
+   *
+   * @return The bytes for triggerIntent.
+   */
+  public com.google.protobuf.ByteString getTriggerIntentBytes() {
+    java.lang.Object ref = "";
+    if (queryCase_ == 11) {
+      ref = query_;
+    }
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      if (queryCase_ == 11) {
+        query_ = b;
+      }
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int TRANSCRIPT_FIELD_NUMBER = 12;
+  /**
+   *
+   *
+   * <pre>
+   * If [natural language speech audio][google.cloud.dialogflow.cx.v3beta1.AudioInput] was provided as input,
+   * this field will contain the trascript for the audio.
+   * </pre>
+   *
+   * <code>string transcript = 12;</code>
+   *
+   * @return The transcript.
+   */
+  public java.lang.String getTranscript() {
+    java.lang.Object ref = "";
+    if (queryCase_ == 12) {
+      ref = query_;
+    }
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      if (queryCase_ == 12) {
+        query_ = s;
+      }
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * If [natural language speech audio][google.cloud.dialogflow.cx.v3beta1.AudioInput] was provided as input,
+   * this field will contain the trascript for the audio.
+   * </pre>
+   *
+   * <code>string transcript = 12;</code>
+   *
+   * @return The bytes for transcript.
+   */
+  public com.google.protobuf.ByteString getTranscriptBytes() {
+    java.lang.Object ref = "";
+    if (queryCase_ == 12) {
+      ref = query_;
+    }
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      if (queryCase_ == 12) {
+        query_ = b;
+      }
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int TRIGGER_EVENT_FIELD_NUMBER = 14;
+  /**
+   *
+   *
+   * <pre>
+   * If an [event][google.cloud.dialogflow.cx.v3beta1.EventInput] was provided as input, this field will contain
+   * the name of the event.
+   * </pre>
+   *
+   * <code>string trigger_event = 14;</code>
+   *
+   * @return The triggerEvent.
+   */
+  public java.lang.String getTriggerEvent() {
+    java.lang.Object ref = "";
+    if (queryCase_ == 14) {
+      ref = query_;
+    }
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      if (queryCase_ == 14) {
+        query_ = s;
+      }
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * If an [event][google.cloud.dialogflow.cx.v3beta1.EventInput] was provided as input, this field will contain
+   * the name of the event.
+   * </pre>
+   *
+   * <code>string trigger_event = 14;</code>
+   *
+   * @return The bytes for triggerEvent.
+   */
+  public com.google.protobuf.ByteString getTriggerEventBytes() {
+    java.lang.Object ref = "";
+    if (queryCase_ == 14) {
+      ref = query_;
+    }
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      if (queryCase_ == 14) {
+        query_ = b;
+      }
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int LANGUAGE_CODE_FIELD_NUMBER = 2;
+  private volatile java.lang.Object languageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * The language that was triggered during intent detection.
+   * See [Language
+   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * for a list of the currently supported language codes.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The languageCode.
+   */
+  @java.lang.Override
+  public java.lang.String getLanguageCode() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      languageCode_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The language that was triggered during intent detection.
+   * See [Language
+   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * for a list of the currently supported language codes.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getLanguageCodeBytes() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      languageCode_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int PARAMETERS_FIELD_NUMBER = 3;
+  private com.google.protobuf.Struct parameters_;
+  /**
+   *
+   *
+   * <pre>
+   * The collected [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+   * Depending on your protocol or client library language, this is a
+   * map, associative array, symbol table, dictionary, or JSON object
+   * composed of a collection of (MapKey, MapValue) pairs:
+   * -   MapKey type: string
+   * -   MapKey value: parameter name
+   * -   MapValue type:
+   *     -   If parameter's entity type is a composite entity: map
+   *     -   Else: string or number, depending on parameter value type
+   * -   MapValue value:
+   *     -   If parameter's entity type is a composite entity:
+   *         map from composite entity property names to property values
+   *     -   Else: parameter value
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct parameters = 3;</code>
+   *
+   * @return Whether the parameters field is set.
+   */
+  @java.lang.Override
+  public boolean hasParameters() {
+    return parameters_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The collected [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+   * Depending on your protocol or client library language, this is a
+   * map, associative array, symbol table, dictionary, or JSON object
+   * composed of a collection of (MapKey, MapValue) pairs:
+   * -   MapKey type: string
+   * -   MapKey value: parameter name
+   * -   MapValue type:
+   *     -   If parameter's entity type is a composite entity: map
+   *     -   Else: string or number, depending on parameter value type
+   * -   MapValue value:
+   *     -   If parameter's entity type is a composite entity:
+   *         map from composite entity property names to property values
+   *     -   Else: parameter value
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct parameters = 3;</code>
+   *
+   * @return The parameters.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Struct getParameters() {
+    return parameters_ == null ? com.google.protobuf.Struct.getDefaultInstance() : parameters_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The collected [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+   * Depending on your protocol or client library language, this is a
+   * map, associative array, symbol table, dictionary, or JSON object
+   * composed of a collection of (MapKey, MapValue) pairs:
+   * -   MapKey type: string
+   * -   MapKey value: parameter name
+   * -   MapValue type:
+   *     -   If parameter's entity type is a composite entity: map
+   *     -   Else: string or number, depending on parameter value type
+   * -   MapValue value:
+   *     -   If parameter's entity type is a composite entity:
+   *         map from composite entity property names to property values
+   *     -   Else: parameter value
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct parameters = 3;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.StructOrBuilder getParametersOrBuilder() {
+    return getParameters();
+  }
+
+  public static final int RESPONSE_MESSAGES_FIELD_NUMBER = 4;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage> responseMessages_;
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich messages returned to the client. Responses vary from
+   * simple text messages to more sophisticated, structured payloads used
+   * to drive complex logic.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage>
+      getResponseMessagesList() {
+    return responseMessages_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich messages returned to the client. Responses vary from
+   * simple text messages to more sophisticated, structured payloads used
+   * to drive complex logic.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>
+      getResponseMessagesOrBuilderList() {
+    return responseMessages_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich messages returned to the client. Responses vary from
+   * simple text messages to more sophisticated, structured payloads used
+   * to drive complex logic.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+   * </code>
+   */
+  @java.lang.Override
+  public int getResponseMessagesCount() {
+    return responseMessages_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich messages returned to the client. Responses vary from
+   * simple text messages to more sophisticated, structured payloads used
+   * to drive complex logic.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage getResponseMessages(int index) {
+    return responseMessages_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich messages returned to the client. Responses vary from
+   * simple text messages to more sophisticated, structured payloads used
+   * to drive complex logic.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder
+      getResponseMessagesOrBuilder(int index) {
+    return responseMessages_.get(index);
+  }
+
+  public static final int WEBHOOK_STATUSES_FIELD_NUMBER = 13;
+  private java.util.List<com.google.rpc.Status> webhookStatuses_;
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhook call status in the order of call sequence.
+   * </pre>
+   *
+   * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.rpc.Status> getWebhookStatusesList() {
+    return webhookStatuses_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhook call status in the order of call sequence.
+   * </pre>
+   *
+   * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.rpc.StatusOrBuilder>
+      getWebhookStatusesOrBuilderList() {
+    return webhookStatuses_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhook call status in the order of call sequence.
+   * </pre>
+   *
+   * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+   */
+  @java.lang.Override
+  public int getWebhookStatusesCount() {
+    return webhookStatuses_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhook call status in the order of call sequence.
+   * </pre>
+   *
+   * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+   */
+  @java.lang.Override
+  public com.google.rpc.Status getWebhookStatuses(int index) {
+    return webhookStatuses_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhook call status in the order of call sequence.
+   * </pre>
+   *
+   * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+   */
+  @java.lang.Override
+  public com.google.rpc.StatusOrBuilder getWebhookStatusesOrBuilder(int index) {
+    return webhookStatuses_.get(index);
+  }
+
+  public static final int WEBHOOK_PAYLOADS_FIELD_NUMBER = 6;
+  private java.util.List<com.google.protobuf.Struct> webhookPayloads_;
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+   * the order of call sequence. If some webhook call fails or doesn't return
+   * any payload, an empty `Struct` would be used instead.
+   * </pre>
+   *
+   * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.protobuf.Struct> getWebhookPayloadsList() {
+    return webhookPayloads_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+   * the order of call sequence. If some webhook call fails or doesn't return
+   * any payload, an empty `Struct` would be used instead.
+   * </pre>
+   *
+   * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.protobuf.StructOrBuilder>
+      getWebhookPayloadsOrBuilderList() {
+    return webhookPayloads_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+   * the order of call sequence. If some webhook call fails or doesn't return
+   * any payload, an empty `Struct` would be used instead.
+   * </pre>
+   *
+   * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+   */
+  @java.lang.Override
+  public int getWebhookPayloadsCount() {
+    return webhookPayloads_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+   * the order of call sequence. If some webhook call fails or doesn't return
+   * any payload, an empty `Struct` would be used instead.
+   * </pre>
+   *
+   * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.Struct getWebhookPayloads(int index) {
+    return webhookPayloads_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+   * the order of call sequence. If some webhook call fails or doesn't return
+   * any payload, an empty `Struct` would be used instead.
+   * </pre>
+   *
+   * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.StructOrBuilder getWebhookPayloadsOrBuilder(int index) {
+    return webhookPayloads_.get(index);
+  }
+
+  public static final int CURRENT_PAGE_FIELD_NUMBER = 7;
+  private com.google.cloud.dialogflow.cx.v3beta1.Page currentPage_;
+  /**
+   *
+   *
+   * <pre>
+   * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+   * including but not limited to `name` and `display_name`.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 7;</code>
+   *
+   * @return Whether the currentPage field is set.
+   */
+  @java.lang.Override
+  public boolean hasCurrentPage() {
+    return currentPage_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+   * including but not limited to `name` and `display_name`.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 7;</code>
+   *
+   * @return The currentPage.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Page getCurrentPage() {
+    return currentPage_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.Page.getDefaultInstance()
+        : currentPage_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+   * including but not limited to `name` and `display_name`.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 7;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder getCurrentPageOrBuilder() {
+    return getCurrentPage();
+  }
+
+  public static final int INTENT_FIELD_NUMBER = 8;
+  private com.google.cloud.dialogflow.cx.v3beta1.Intent intent_;
+  /**
+   *
+   *
+   * <pre>
+   * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the conversational query. Some, not all fields
+   * are filled in this message, including but not limited to: `name` and
+   * `display_name`.
+   * This field is deprecated, please use [QueryResult.match][google.cloud.dialogflow.cx.v3beta1.QueryResult.match] instead.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 8 [deprecated = true];</code>
+   *
+   * @return Whether the intent field is set.
+   */
+  @java.lang.Override
+  @java.lang.Deprecated
+  public boolean hasIntent() {
+    return intent_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the conversational query. Some, not all fields
+   * are filled in this message, including but not limited to: `name` and
+   * `display_name`.
+   * This field is deprecated, please use [QueryResult.match][google.cloud.dialogflow.cx.v3beta1.QueryResult.match] instead.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 8 [deprecated = true];</code>
+   *
+   * @return The intent.
+   */
+  @java.lang.Override
+  @java.lang.Deprecated
+  public com.google.cloud.dialogflow.cx.v3beta1.Intent getIntent() {
+    return intent_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.Intent.getDefaultInstance()
+        : intent_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the conversational query. Some, not all fields
+   * are filled in this message, including but not limited to: `name` and
+   * `display_name`.
+   * This field is deprecated, please use [QueryResult.match][google.cloud.dialogflow.cx.v3beta1.QueryResult.match] instead.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 8 [deprecated = true];</code>
+   */
+  @java.lang.Override
+  @java.lang.Deprecated
+  public com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder getIntentOrBuilder() {
+    return getIntent();
+  }
+
+  public static final int INTENT_DETECTION_CONFIDENCE_FIELD_NUMBER = 9;
+  private float intentDetectionConfidence_;
+  /**
+   *
+   *
+   * <pre>
+   * The intent detection confidence. Values range from 0.0 (completely
+   * uncertain) to 1.0 (completely certain).
+   * This value is for informational purpose only and is only used to
+   * help match the best intent within the classification threshold.
+   * This value may change for the same end-user expression at any time due to a
+   * model retraining or change in implementation.
+   * This field is deprecated, please use [QueryResult.match][google.cloud.dialogflow.cx.v3beta1.QueryResult.match] instead.
+   * </pre>
+   *
+   * <code>float intent_detection_confidence = 9 [deprecated = true];</code>
+   *
+   * @return The intentDetectionConfidence.
+   */
+  @java.lang.Override
+  @java.lang.Deprecated
+  public float getIntentDetectionConfidence() {
+    return intentDetectionConfidence_;
+  }
+
+  public static final int MATCH_FIELD_NUMBER = 15;
+  private com.google.cloud.dialogflow.cx.v3beta1.Match match_;
+  /**
+   *
+   *
+   * <pre>
+   * Intent match result, could be an intent or an event.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 15;</code>
+   *
+   * @return Whether the match field is set.
+   */
+  @java.lang.Override
+  public boolean hasMatch() {
+    return match_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Intent match result, could be an intent or an event.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 15;</code>
+   *
+   * @return The match.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Match getMatch() {
+    return match_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.Match.getDefaultInstance()
+        : match_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Intent match result, could be an intent or an event.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 15;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.MatchOrBuilder getMatchOrBuilder() {
+    return getMatch();
+  }
+
+  public static final int DIAGNOSTIC_INFO_FIELD_NUMBER = 10;
+  private com.google.protobuf.Struct diagnosticInfo_;
+  /**
+   *
+   *
+   * <pre>
+   * The free-form diagnostic info. For example, this field could contain
+   * webhook call latency. The string keys of the Struct's fields map can change
+   * without notice.
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct diagnostic_info = 10;</code>
+   *
+   * @return Whether the diagnosticInfo field is set.
+   */
+  @java.lang.Override
+  public boolean hasDiagnosticInfo() {
+    return diagnosticInfo_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The free-form diagnostic info. For example, this field could contain
+   * webhook call latency. The string keys of the Struct's fields map can change
+   * without notice.
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct diagnostic_info = 10;</code>
+   *
+   * @return The diagnosticInfo.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Struct getDiagnosticInfo() {
+    return diagnosticInfo_ == null
+        ? com.google.protobuf.Struct.getDefaultInstance()
+        : diagnosticInfo_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The free-form diagnostic info. For example, this field could contain
+   * webhook call latency. The string keys of the Struct's fields map can change
+   * without notice.
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct diagnostic_info = 10;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.StructOrBuilder getDiagnosticInfoOrBuilder() {
+    return getDiagnosticInfo();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (queryCase_ == 1) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, query_);
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, languageCode_);
+    }
+    if (parameters_ != null) {
+      output.writeMessage(3, getParameters());
+    }
+    for (int i = 0; i < responseMessages_.size(); i++) {
+      output.writeMessage(4, responseMessages_.get(i));
+    }
+    for (int i = 0; i < webhookPayloads_.size(); i++) {
+      output.writeMessage(6, webhookPayloads_.get(i));
+    }
+    if (currentPage_ != null) {
+      output.writeMessage(7, getCurrentPage());
+    }
+    if (intent_ != null) {
+      output.writeMessage(8, getIntent());
+    }
+    if (intentDetectionConfidence_ != 0F) {
+      output.writeFloat(9, intentDetectionConfidence_);
+    }
+    if (diagnosticInfo_ != null) {
+      output.writeMessage(10, getDiagnosticInfo());
+    }
+    if (queryCase_ == 11) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 11, query_);
+    }
+    if (queryCase_ == 12) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 12, query_);
+    }
+    for (int i = 0; i < webhookStatuses_.size(); i++) {
+      output.writeMessage(13, webhookStatuses_.get(i));
+    }
+    if (queryCase_ == 14) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 14, query_);
+    }
+    if (match_ != null) {
+      output.writeMessage(15, getMatch());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (queryCase_ == 1) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, query_);
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, languageCode_);
+    }
+    if (parameters_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getParameters());
+    }
+    for (int i = 0; i < responseMessages_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, responseMessages_.get(i));
+    }
+    for (int i = 0; i < webhookPayloads_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(6, webhookPayloads_.get(i));
+    }
+    if (currentPage_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(7, getCurrentPage());
+    }
+    if (intent_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(8, getIntent());
+    }
+    if (intentDetectionConfidence_ != 0F) {
+      size += com.google.protobuf.CodedOutputStream.computeFloatSize(9, intentDetectionConfidence_);
+    }
+    if (diagnosticInfo_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(10, getDiagnosticInfo());
+    }
+    if (queryCase_ == 11) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(11, query_);
+    }
+    if (queryCase_ == 12) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(12, query_);
+    }
+    for (int i = 0; i < webhookStatuses_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(13, webhookStatuses_.get(i));
+    }
+    if (queryCase_ == 14) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(14, query_);
+    }
+    if (match_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(15, getMatch());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.QueryResult)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.QueryResult other =
+        (com.google.cloud.dialogflow.cx.v3beta1.QueryResult) obj;
+
+    if (!getLanguageCode().equals(other.getLanguageCode())) return false;
+    if (hasParameters() != other.hasParameters()) return false;
+    if (hasParameters()) {
+      if (!getParameters().equals(other.getParameters())) return false;
+    }
+    if (!getResponseMessagesList().equals(other.getResponseMessagesList())) return false;
+    if (!getWebhookStatusesList().equals(other.getWebhookStatusesList())) return false;
+    if (!getWebhookPayloadsList().equals(other.getWebhookPayloadsList())) return false;
+    if (hasCurrentPage() != other.hasCurrentPage()) return false;
+    if (hasCurrentPage()) {
+      if (!getCurrentPage().equals(other.getCurrentPage())) return false;
+    }
+    if (hasIntent() != other.hasIntent()) return false;
+    if (hasIntent()) {
+      if (!getIntent().equals(other.getIntent())) return false;
+    }
+    if (java.lang.Float.floatToIntBits(getIntentDetectionConfidence())
+        != java.lang.Float.floatToIntBits(other.getIntentDetectionConfidence())) return false;
+    if (hasMatch() != other.hasMatch()) return false;
+    if (hasMatch()) {
+      if (!getMatch().equals(other.getMatch())) return false;
+    }
+    if (hasDiagnosticInfo() != other.hasDiagnosticInfo()) return false;
+    if (hasDiagnosticInfo()) {
+      if (!getDiagnosticInfo().equals(other.getDiagnosticInfo())) return false;
+    }
+    if (!getQueryCase().equals(other.getQueryCase())) return false;
+    switch (queryCase_) {
+      case 1:
+        if (!getText().equals(other.getText())) return false;
+        break;
+      case 11:
+        if (!getTriggerIntent().equals(other.getTriggerIntent())) return false;
+        break;
+      case 12:
+        if (!getTranscript().equals(other.getTranscript())) return false;
+        break;
+      case 14:
+        if (!getTriggerEvent().equals(other.getTriggerEvent())) return false;
+        break;
+      case 0:
+      default:
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
+    hash = (53 * hash) + getLanguageCode().hashCode();
+    if (hasParameters()) {
+      hash = (37 * hash) + PARAMETERS_FIELD_NUMBER;
+      hash = (53 * hash) + getParameters().hashCode();
+    }
+    if (getResponseMessagesCount() > 0) {
+      hash = (37 * hash) + RESPONSE_MESSAGES_FIELD_NUMBER;
+      hash = (53 * hash) + getResponseMessagesList().hashCode();
+    }
+    if (getWebhookStatusesCount() > 0) {
+      hash = (37 * hash) + WEBHOOK_STATUSES_FIELD_NUMBER;
+      hash = (53 * hash) + getWebhookStatusesList().hashCode();
+    }
+    if (getWebhookPayloadsCount() > 0) {
+      hash = (37 * hash) + WEBHOOK_PAYLOADS_FIELD_NUMBER;
+      hash = (53 * hash) + getWebhookPayloadsList().hashCode();
+    }
+    if (hasCurrentPage()) {
+      hash = (37 * hash) + CURRENT_PAGE_FIELD_NUMBER;
+      hash = (53 * hash) + getCurrentPage().hashCode();
+    }
+    if (hasIntent()) {
+      hash = (37 * hash) + INTENT_FIELD_NUMBER;
+      hash = (53 * hash) + getIntent().hashCode();
+    }
+    hash = (37 * hash) + INTENT_DETECTION_CONFIDENCE_FIELD_NUMBER;
+    hash = (53 * hash) + java.lang.Float.floatToIntBits(getIntentDetectionConfidence());
+    if (hasMatch()) {
+      hash = (37 * hash) + MATCH_FIELD_NUMBER;
+      hash = (53 * hash) + getMatch().hashCode();
+    }
+    if (hasDiagnosticInfo()) {
+      hash = (37 * hash) + DIAGNOSTIC_INFO_FIELD_NUMBER;
+      hash = (53 * hash) + getDiagnosticInfo().hashCode();
+    }
+    switch (queryCase_) {
+      case 1:
+        hash = (37 * hash) + TEXT_FIELD_NUMBER;
+        hash = (53 * hash) + getText().hashCode();
+        break;
+      case 11:
+        hash = (37 * hash) + TRIGGER_INTENT_FIELD_NUMBER;
+        hash = (53 * hash) + getTriggerIntent().hashCode();
+        break;
+      case 12:
+        hash = (37 * hash) + TRANSCRIPT_FIELD_NUMBER;
+        hash = (53 * hash) + getTranscript().hashCode();
+        break;
+      case 14:
+        hash = (37 * hash) + TRIGGER_EVENT_FIELD_NUMBER;
+        hash = (53 * hash) + getTriggerEvent().hashCode();
+        break;
+      case 0:
+      default:
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryResult parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryResult parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryResult parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryResult parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryResult parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryResult parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryResult parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryResult parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryResult parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryResult parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryResult parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryResult parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.cx.v3beta1.QueryResult prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents the result of a conversational query.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.QueryResult}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.QueryResult)
+      com.google.cloud.dialogflow.cx.v3beta1.QueryResultOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_QueryResult_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_QueryResult_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.QueryResult.class,
+              com.google.cloud.dialogflow.cx.v3beta1.QueryResult.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.QueryResult.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getResponseMessagesFieldBuilder();
+        getWebhookStatusesFieldBuilder();
+        getWebhookPayloadsFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      languageCode_ = "";
+
+      if (parametersBuilder_ == null) {
+        parameters_ = null;
+      } else {
+        parameters_ = null;
+        parametersBuilder_ = null;
+      }
+      if (responseMessagesBuilder_ == null) {
+        responseMessages_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        responseMessagesBuilder_.clear();
+      }
+      if (webhookStatusesBuilder_ == null) {
+        webhookStatuses_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000002);
+      } else {
+        webhookStatusesBuilder_.clear();
+      }
+      if (webhookPayloadsBuilder_ == null) {
+        webhookPayloads_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000004);
+      } else {
+        webhookPayloadsBuilder_.clear();
+      }
+      if (currentPageBuilder_ == null) {
+        currentPage_ = null;
+      } else {
+        currentPage_ = null;
+        currentPageBuilder_ = null;
+      }
+      if (intentBuilder_ == null) {
+        intent_ = null;
+      } else {
+        intent_ = null;
+        intentBuilder_ = null;
+      }
+      intentDetectionConfidence_ = 0F;
+
+      if (matchBuilder_ == null) {
+        match_ = null;
+      } else {
+        match_ = null;
+        matchBuilder_ = null;
+      }
+      if (diagnosticInfoBuilder_ == null) {
+        diagnosticInfo_ = null;
+      } else {
+        diagnosticInfo_ = null;
+        diagnosticInfoBuilder_ = null;
+      }
+      queryCase_ = 0;
+      query_ = null;
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_QueryResult_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryResult getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.QueryResult.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryResult build() {
+      com.google.cloud.dialogflow.cx.v3beta1.QueryResult result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryResult buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.QueryResult result =
+          new com.google.cloud.dialogflow.cx.v3beta1.QueryResult(this);
+      int from_bitField0_ = bitField0_;
+      if (queryCase_ == 1) {
+        result.query_ = query_;
+      }
+      if (queryCase_ == 11) {
+        result.query_ = query_;
+      }
+      if (queryCase_ == 12) {
+        result.query_ = query_;
+      }
+      if (queryCase_ == 14) {
+        result.query_ = query_;
+      }
+      result.languageCode_ = languageCode_;
+      if (parametersBuilder_ == null) {
+        result.parameters_ = parameters_;
+      } else {
+        result.parameters_ = parametersBuilder_.build();
+      }
+      if (responseMessagesBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          responseMessages_ = java.util.Collections.unmodifiableList(responseMessages_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.responseMessages_ = responseMessages_;
+      } else {
+        result.responseMessages_ = responseMessagesBuilder_.build();
+      }
+      if (webhookStatusesBuilder_ == null) {
+        if (((bitField0_ & 0x00000002) != 0)) {
+          webhookStatuses_ = java.util.Collections.unmodifiableList(webhookStatuses_);
+          bitField0_ = (bitField0_ & ~0x00000002);
+        }
+        result.webhookStatuses_ = webhookStatuses_;
+      } else {
+        result.webhookStatuses_ = webhookStatusesBuilder_.build();
+      }
+      if (webhookPayloadsBuilder_ == null) {
+        if (((bitField0_ & 0x00000004) != 0)) {
+          webhookPayloads_ = java.util.Collections.unmodifiableList(webhookPayloads_);
+          bitField0_ = (bitField0_ & ~0x00000004);
+        }
+        result.webhookPayloads_ = webhookPayloads_;
+      } else {
+        result.webhookPayloads_ = webhookPayloadsBuilder_.build();
+      }
+      if (currentPageBuilder_ == null) {
+        result.currentPage_ = currentPage_;
+      } else {
+        result.currentPage_ = currentPageBuilder_.build();
+      }
+      if (intentBuilder_ == null) {
+        result.intent_ = intent_;
+      } else {
+        result.intent_ = intentBuilder_.build();
+      }
+      result.intentDetectionConfidence_ = intentDetectionConfidence_;
+      if (matchBuilder_ == null) {
+        result.match_ = match_;
+      } else {
+        result.match_ = matchBuilder_.build();
+      }
+      if (diagnosticInfoBuilder_ == null) {
+        result.diagnosticInfo_ = diagnosticInfo_;
+      } else {
+        result.diagnosticInfo_ = diagnosticInfoBuilder_.build();
+      }
+      result.queryCase_ = queryCase_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.QueryResult) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.QueryResult) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.QueryResult other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.QueryResult.getDefaultInstance())
+        return this;
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
+      }
+      if (other.hasParameters()) {
+        mergeParameters(other.getParameters());
+      }
+      if (responseMessagesBuilder_ == null) {
+        if (!other.responseMessages_.isEmpty()) {
+          if (responseMessages_.isEmpty()) {
+            responseMessages_ = other.responseMessages_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureResponseMessagesIsMutable();
+            responseMessages_.addAll(other.responseMessages_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.responseMessages_.isEmpty()) {
+          if (responseMessagesBuilder_.isEmpty()) {
+            responseMessagesBuilder_.dispose();
+            responseMessagesBuilder_ = null;
+            responseMessages_ = other.responseMessages_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            responseMessagesBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getResponseMessagesFieldBuilder()
+                    : null;
+          } else {
+            responseMessagesBuilder_.addAllMessages(other.responseMessages_);
+          }
+        }
+      }
+      if (webhookStatusesBuilder_ == null) {
+        if (!other.webhookStatuses_.isEmpty()) {
+          if (webhookStatuses_.isEmpty()) {
+            webhookStatuses_ = other.webhookStatuses_;
+            bitField0_ = (bitField0_ & ~0x00000002);
+          } else {
+            ensureWebhookStatusesIsMutable();
+            webhookStatuses_.addAll(other.webhookStatuses_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.webhookStatuses_.isEmpty()) {
+          if (webhookStatusesBuilder_.isEmpty()) {
+            webhookStatusesBuilder_.dispose();
+            webhookStatusesBuilder_ = null;
+            webhookStatuses_ = other.webhookStatuses_;
+            bitField0_ = (bitField0_ & ~0x00000002);
+            webhookStatusesBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getWebhookStatusesFieldBuilder()
+                    : null;
+          } else {
+            webhookStatusesBuilder_.addAllMessages(other.webhookStatuses_);
+          }
+        }
+      }
+      if (webhookPayloadsBuilder_ == null) {
+        if (!other.webhookPayloads_.isEmpty()) {
+          if (webhookPayloads_.isEmpty()) {
+            webhookPayloads_ = other.webhookPayloads_;
+            bitField0_ = (bitField0_ & ~0x00000004);
+          } else {
+            ensureWebhookPayloadsIsMutable();
+            webhookPayloads_.addAll(other.webhookPayloads_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.webhookPayloads_.isEmpty()) {
+          if (webhookPayloadsBuilder_.isEmpty()) {
+            webhookPayloadsBuilder_.dispose();
+            webhookPayloadsBuilder_ = null;
+            webhookPayloads_ = other.webhookPayloads_;
+            bitField0_ = (bitField0_ & ~0x00000004);
+            webhookPayloadsBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getWebhookPayloadsFieldBuilder()
+                    : null;
+          } else {
+            webhookPayloadsBuilder_.addAllMessages(other.webhookPayloads_);
+          }
+        }
+      }
+      if (other.hasCurrentPage()) {
+        mergeCurrentPage(other.getCurrentPage());
+      }
+      if (other.hasIntent()) {
+        mergeIntent(other.getIntent());
+      }
+      if (other.getIntentDetectionConfidence() != 0F) {
+        setIntentDetectionConfidence(other.getIntentDetectionConfidence());
+      }
+      if (other.hasMatch()) {
+        mergeMatch(other.getMatch());
+      }
+      if (other.hasDiagnosticInfo()) {
+        mergeDiagnosticInfo(other.getDiagnosticInfo());
+      }
+      switch (other.getQueryCase()) {
+        case TEXT:
+          {
+            queryCase_ = 1;
+            query_ = other.query_;
+            onChanged();
+            break;
+          }
+        case TRIGGER_INTENT:
+          {
+            queryCase_ = 11;
+            query_ = other.query_;
+            onChanged();
+            break;
+          }
+        case TRANSCRIPT:
+          {
+            queryCase_ = 12;
+            query_ = other.query_;
+            onChanged();
+            break;
+          }
+        case TRIGGER_EVENT:
+          {
+            queryCase_ = 14;
+            query_ = other.query_;
+            onChanged();
+            break;
+          }
+        case QUERY_NOT_SET:
+          {
+            break;
+          }
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.QueryResult parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.QueryResult) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int queryCase_ = 0;
+    private java.lang.Object query_;
+
+    public QueryCase getQueryCase() {
+      return QueryCase.forNumber(queryCase_);
+    }
+
+    public Builder clearQuery() {
+      queryCase_ = 0;
+      query_ = null;
+      onChanged();
+      return this;
+    }
+
+    private int bitField0_;
+
+    /**
+     *
+     *
+     * <pre>
+     * If [natural language text][google.cloud.dialogflow.cx.v3beta1.TextInput] was provided as input, this field
+     * will contain a copy of the text.
+     * </pre>
+     *
+     * <code>string text = 1;</code>
+     *
+     * @return The text.
+     */
+    @java.lang.Override
+    public java.lang.String getText() {
+      java.lang.Object ref = "";
+      if (queryCase_ == 1) {
+        ref = query_;
+      }
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (queryCase_ == 1) {
+          query_ = s;
+        }
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If [natural language text][google.cloud.dialogflow.cx.v3beta1.TextInput] was provided as input, this field
+     * will contain a copy of the text.
+     * </pre>
+     *
+     * <code>string text = 1;</code>
+     *
+     * @return The bytes for text.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getTextBytes() {
+      java.lang.Object ref = "";
+      if (queryCase_ == 1) {
+        ref = query_;
+      }
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        if (queryCase_ == 1) {
+          query_ = b;
+        }
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If [natural language text][google.cloud.dialogflow.cx.v3beta1.TextInput] was provided as input, this field
+     * will contain a copy of the text.
+     * </pre>
+     *
+     * <code>string text = 1;</code>
+     *
+     * @param value The text to set.
+     * @return This builder for chaining.
+     */
+    public Builder setText(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      queryCase_ = 1;
+      query_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If [natural language text][google.cloud.dialogflow.cx.v3beta1.TextInput] was provided as input, this field
+     * will contain a copy of the text.
+     * </pre>
+     *
+     * <code>string text = 1;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearText() {
+      if (queryCase_ == 1) {
+        queryCase_ = 0;
+        query_ = null;
+        onChanged();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If [natural language text][google.cloud.dialogflow.cx.v3beta1.TextInput] was provided as input, this field
+     * will contain a copy of the text.
+     * </pre>
+     *
+     * <code>string text = 1;</code>
+     *
+     * @param value The bytes for text to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTextBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      queryCase_ = 1;
+      query_ = value;
+      onChanged();
+      return this;
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * If an [intent][google.cloud.dialogflow.cx.v3beta1.IntentInput] was provided as input, this field will
+     * contain a copy of the intent identifier.
+     * </pre>
+     *
+     * <code>string trigger_intent = 11;</code>
+     *
+     * @return The triggerIntent.
+     */
+    @java.lang.Override
+    public java.lang.String getTriggerIntent() {
+      java.lang.Object ref = "";
+      if (queryCase_ == 11) {
+        ref = query_;
+      }
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (queryCase_ == 11) {
+          query_ = s;
+        }
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If an [intent][google.cloud.dialogflow.cx.v3beta1.IntentInput] was provided as input, this field will
+     * contain a copy of the intent identifier.
+     * </pre>
+     *
+     * <code>string trigger_intent = 11;</code>
+     *
+     * @return The bytes for triggerIntent.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getTriggerIntentBytes() {
+      java.lang.Object ref = "";
+      if (queryCase_ == 11) {
+        ref = query_;
+      }
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        if (queryCase_ == 11) {
+          query_ = b;
+        }
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If an [intent][google.cloud.dialogflow.cx.v3beta1.IntentInput] was provided as input, this field will
+     * contain a copy of the intent identifier.
+     * </pre>
+     *
+     * <code>string trigger_intent = 11;</code>
+     *
+     * @param value The triggerIntent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTriggerIntent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      queryCase_ = 11;
+      query_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If an [intent][google.cloud.dialogflow.cx.v3beta1.IntentInput] was provided as input, this field will
+     * contain a copy of the intent identifier.
+     * </pre>
+     *
+     * <code>string trigger_intent = 11;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearTriggerIntent() {
+      if (queryCase_ == 11) {
+        queryCase_ = 0;
+        query_ = null;
+        onChanged();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If an [intent][google.cloud.dialogflow.cx.v3beta1.IntentInput] was provided as input, this field will
+     * contain a copy of the intent identifier.
+     * </pre>
+     *
+     * <code>string trigger_intent = 11;</code>
+     *
+     * @param value The bytes for triggerIntent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTriggerIntentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      queryCase_ = 11;
+      query_ = value;
+      onChanged();
+      return this;
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * If [natural language speech audio][google.cloud.dialogflow.cx.v3beta1.AudioInput] was provided as input,
+     * this field will contain the trascript for the audio.
+     * </pre>
+     *
+     * <code>string transcript = 12;</code>
+     *
+     * @return The transcript.
+     */
+    @java.lang.Override
+    public java.lang.String getTranscript() {
+      java.lang.Object ref = "";
+      if (queryCase_ == 12) {
+        ref = query_;
+      }
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (queryCase_ == 12) {
+          query_ = s;
+        }
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If [natural language speech audio][google.cloud.dialogflow.cx.v3beta1.AudioInput] was provided as input,
+     * this field will contain the trascript for the audio.
+     * </pre>
+     *
+     * <code>string transcript = 12;</code>
+     *
+     * @return The bytes for transcript.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getTranscriptBytes() {
+      java.lang.Object ref = "";
+      if (queryCase_ == 12) {
+        ref = query_;
+      }
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        if (queryCase_ == 12) {
+          query_ = b;
+        }
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If [natural language speech audio][google.cloud.dialogflow.cx.v3beta1.AudioInput] was provided as input,
+     * this field will contain the trascript for the audio.
+     * </pre>
+     *
+     * <code>string transcript = 12;</code>
+     *
+     * @param value The transcript to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTranscript(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      queryCase_ = 12;
+      query_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If [natural language speech audio][google.cloud.dialogflow.cx.v3beta1.AudioInput] was provided as input,
+     * this field will contain the trascript for the audio.
+     * </pre>
+     *
+     * <code>string transcript = 12;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearTranscript() {
+      if (queryCase_ == 12) {
+        queryCase_ = 0;
+        query_ = null;
+        onChanged();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If [natural language speech audio][google.cloud.dialogflow.cx.v3beta1.AudioInput] was provided as input,
+     * this field will contain the trascript for the audio.
+     * </pre>
+     *
+     * <code>string transcript = 12;</code>
+     *
+     * @param value The bytes for transcript to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTranscriptBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      queryCase_ = 12;
+      query_ = value;
+      onChanged();
+      return this;
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * If an [event][google.cloud.dialogflow.cx.v3beta1.EventInput] was provided as input, this field will contain
+     * the name of the event.
+     * </pre>
+     *
+     * <code>string trigger_event = 14;</code>
+     *
+     * @return The triggerEvent.
+     */
+    @java.lang.Override
+    public java.lang.String getTriggerEvent() {
+      java.lang.Object ref = "";
+      if (queryCase_ == 14) {
+        ref = query_;
+      }
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (queryCase_ == 14) {
+          query_ = s;
+        }
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If an [event][google.cloud.dialogflow.cx.v3beta1.EventInput] was provided as input, this field will contain
+     * the name of the event.
+     * </pre>
+     *
+     * <code>string trigger_event = 14;</code>
+     *
+     * @return The bytes for triggerEvent.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getTriggerEventBytes() {
+      java.lang.Object ref = "";
+      if (queryCase_ == 14) {
+        ref = query_;
+      }
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        if (queryCase_ == 14) {
+          query_ = b;
+        }
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If an [event][google.cloud.dialogflow.cx.v3beta1.EventInput] was provided as input, this field will contain
+     * the name of the event.
+     * </pre>
+     *
+     * <code>string trigger_event = 14;</code>
+     *
+     * @param value The triggerEvent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTriggerEvent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      queryCase_ = 14;
+      query_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If an [event][google.cloud.dialogflow.cx.v3beta1.EventInput] was provided as input, this field will contain
+     * the name of the event.
+     * </pre>
+     *
+     * <code>string trigger_event = 14;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearTriggerEvent() {
+      if (queryCase_ == 14) {
+        queryCase_ = 0;
+        query_ = null;
+        onChanged();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If an [event][google.cloud.dialogflow.cx.v3beta1.EventInput] was provided as input, this field will contain
+     * the name of the event.
+     * </pre>
+     *
+     * <code>string trigger_event = 14;</code>
+     *
+     * @param value The bytes for triggerEvent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTriggerEventBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      queryCase_ = 14;
+      query_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The language that was triggered during intent detection.
+     * See [Language
+     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * for a list of the currently supported language codes.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language that was triggered during intent detection.
+     * See [Language
+     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * for a list of the currently supported language codes.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language that was triggered during intent detection.
+     * See [Language
+     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * for a list of the currently supported language codes.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language that was triggered during intent detection.
+     * See [Language
+     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * for a list of the currently supported language codes.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language that was triggered during intent detection.
+     * See [Language
+     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * for a list of the currently supported language codes.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.Struct parameters_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Struct,
+            com.google.protobuf.Struct.Builder,
+            com.google.protobuf.StructOrBuilder>
+        parametersBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The collected [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 3;</code>
+     *
+     * @return Whether the parameters field is set.
+     */
+    public boolean hasParameters() {
+      return parametersBuilder_ != null || parameters_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collected [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 3;</code>
+     *
+     * @return The parameters.
+     */
+    public com.google.protobuf.Struct getParameters() {
+      if (parametersBuilder_ == null) {
+        return parameters_ == null ? com.google.protobuf.Struct.getDefaultInstance() : parameters_;
+      } else {
+        return parametersBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collected [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 3;</code>
+     */
+    public Builder setParameters(com.google.protobuf.Struct value) {
+      if (parametersBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        parameters_ = value;
+        onChanged();
+      } else {
+        parametersBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collected [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 3;</code>
+     */
+    public Builder setParameters(com.google.protobuf.Struct.Builder builderForValue) {
+      if (parametersBuilder_ == null) {
+        parameters_ = builderForValue.build();
+        onChanged();
+      } else {
+        parametersBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collected [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 3;</code>
+     */
+    public Builder mergeParameters(com.google.protobuf.Struct value) {
+      if (parametersBuilder_ == null) {
+        if (parameters_ != null) {
+          parameters_ =
+              com.google.protobuf.Struct.newBuilder(parameters_).mergeFrom(value).buildPartial();
+        } else {
+          parameters_ = value;
+        }
+        onChanged();
+      } else {
+        parametersBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collected [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 3;</code>
+     */
+    public Builder clearParameters() {
+      if (parametersBuilder_ == null) {
+        parameters_ = null;
+        onChanged();
+      } else {
+        parameters_ = null;
+        parametersBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collected [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 3;</code>
+     */
+    public com.google.protobuf.Struct.Builder getParametersBuilder() {
+
+      onChanged();
+      return getParametersFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collected [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 3;</code>
+     */
+    public com.google.protobuf.StructOrBuilder getParametersOrBuilder() {
+      if (parametersBuilder_ != null) {
+        return parametersBuilder_.getMessageOrBuilder();
+      } else {
+        return parameters_ == null ? com.google.protobuf.Struct.getDefaultInstance() : parameters_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The collected [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+     * Depending on your protocol or client library language, this is a
+     * map, associative array, symbol table, dictionary, or JSON object
+     * composed of a collection of (MapKey, MapValue) pairs:
+     * -   MapKey type: string
+     * -   MapKey value: parameter name
+     * -   MapValue type:
+     *     -   If parameter's entity type is a composite entity: map
+     *     -   Else: string or number, depending on parameter value type
+     * -   MapValue value:
+     *     -   If parameter's entity type is a composite entity:
+     *         map from composite entity property names to property values
+     *     -   Else: parameter value
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct parameters = 3;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Struct,
+            com.google.protobuf.Struct.Builder,
+            com.google.protobuf.StructOrBuilder>
+        getParametersFieldBuilder() {
+      if (parametersBuilder_ == null) {
+        parametersBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.Struct,
+                com.google.protobuf.Struct.Builder,
+                com.google.protobuf.StructOrBuilder>(
+                getParameters(), getParentForChildren(), isClean());
+        parameters_ = null;
+      }
+      return parametersBuilder_;
+    }
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage>
+        responseMessages_ = java.util.Collections.emptyList();
+
+    private void ensureResponseMessagesIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        responseMessages_ =
+            new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage>(
+                responseMessages_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>
+        responseMessagesBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich messages returned to the client. Responses vary from
+     * simple text messages to more sophisticated, structured payloads used
+     * to drive complex logic.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage>
+        getResponseMessagesList() {
+      if (responseMessagesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(responseMessages_);
+      } else {
+        return responseMessagesBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich messages returned to the client. Responses vary from
+     * simple text messages to more sophisticated, structured payloads used
+     * to drive complex logic.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+     * </code>
+     */
+    public int getResponseMessagesCount() {
+      if (responseMessagesBuilder_ == null) {
+        return responseMessages_.size();
+      } else {
+        return responseMessagesBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich messages returned to the client. Responses vary from
+     * simple text messages to more sophisticated, structured payloads used
+     * to drive complex logic.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage getResponseMessages(int index) {
+      if (responseMessagesBuilder_ == null) {
+        return responseMessages_.get(index);
+      } else {
+        return responseMessagesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich messages returned to the client. Responses vary from
+     * simple text messages to more sophisticated, structured payloads used
+     * to drive complex logic.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+     * </code>
+     */
+    public Builder setResponseMessages(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage value) {
+      if (responseMessagesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureResponseMessagesIsMutable();
+        responseMessages_.set(index, value);
+        onChanged();
+      } else {
+        responseMessagesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich messages returned to the client. Responses vary from
+     * simple text messages to more sophisticated, structured payloads used
+     * to drive complex logic.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+     * </code>
+     */
+    public Builder setResponseMessages(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder builderForValue) {
+      if (responseMessagesBuilder_ == null) {
+        ensureResponseMessagesIsMutable();
+        responseMessages_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        responseMessagesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich messages returned to the client. Responses vary from
+     * simple text messages to more sophisticated, structured payloads used
+     * to drive complex logic.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+     * </code>
+     */
+    public Builder addResponseMessages(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage value) {
+      if (responseMessagesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureResponseMessagesIsMutable();
+        responseMessages_.add(value);
+        onChanged();
+      } else {
+        responseMessagesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich messages returned to the client. Responses vary from
+     * simple text messages to more sophisticated, structured payloads used
+     * to drive complex logic.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+     * </code>
+     */
+    public Builder addResponseMessages(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage value) {
+      if (responseMessagesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureResponseMessagesIsMutable();
+        responseMessages_.add(index, value);
+        onChanged();
+      } else {
+        responseMessagesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich messages returned to the client. Responses vary from
+     * simple text messages to more sophisticated, structured payloads used
+     * to drive complex logic.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+     * </code>
+     */
+    public Builder addResponseMessages(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder builderForValue) {
+      if (responseMessagesBuilder_ == null) {
+        ensureResponseMessagesIsMutable();
+        responseMessages_.add(builderForValue.build());
+        onChanged();
+      } else {
+        responseMessagesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich messages returned to the client. Responses vary from
+     * simple text messages to more sophisticated, structured payloads used
+     * to drive complex logic.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+     * </code>
+     */
+    public Builder addResponseMessages(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder builderForValue) {
+      if (responseMessagesBuilder_ == null) {
+        ensureResponseMessagesIsMutable();
+        responseMessages_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        responseMessagesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich messages returned to the client. Responses vary from
+     * simple text messages to more sophisticated, structured payloads used
+     * to drive complex logic.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+     * </code>
+     */
+    public Builder addAllResponseMessages(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage>
+            values) {
+      if (responseMessagesBuilder_ == null) {
+        ensureResponseMessagesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, responseMessages_);
+        onChanged();
+      } else {
+        responseMessagesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich messages returned to the client. Responses vary from
+     * simple text messages to more sophisticated, structured payloads used
+     * to drive complex logic.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+     * </code>
+     */
+    public Builder clearResponseMessages() {
+      if (responseMessagesBuilder_ == null) {
+        responseMessages_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        responseMessagesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich messages returned to the client. Responses vary from
+     * simple text messages to more sophisticated, structured payloads used
+     * to drive complex logic.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+     * </code>
+     */
+    public Builder removeResponseMessages(int index) {
+      if (responseMessagesBuilder_ == null) {
+        ensureResponseMessagesIsMutable();
+        responseMessages_.remove(index);
+        onChanged();
+      } else {
+        responseMessagesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich messages returned to the client. Responses vary from
+     * simple text messages to more sophisticated, structured payloads used
+     * to drive complex logic.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder
+        getResponseMessagesBuilder(int index) {
+      return getResponseMessagesFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich messages returned to the client. Responses vary from
+     * simple text messages to more sophisticated, structured payloads used
+     * to drive complex logic.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder
+        getResponseMessagesOrBuilder(int index) {
+      if (responseMessagesBuilder_ == null) {
+        return responseMessages_.get(index);
+      } else {
+        return responseMessagesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich messages returned to the client. Responses vary from
+     * simple text messages to more sophisticated, structured payloads used
+     * to drive complex logic.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+     * </code>
+     */
+    public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>
+        getResponseMessagesOrBuilderList() {
+      if (responseMessagesBuilder_ != null) {
+        return responseMessagesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(responseMessages_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich messages returned to the client. Responses vary from
+     * simple text messages to more sophisticated, structured payloads used
+     * to drive complex logic.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder
+        addResponseMessagesBuilder() {
+      return getResponseMessagesFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich messages returned to the client. Responses vary from
+     * simple text messages to more sophisticated, structured payloads used
+     * to drive complex logic.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder
+        addResponseMessagesBuilder(int index) {
+      return getResponseMessagesFieldBuilder()
+          .addBuilder(
+              index, com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich messages returned to the client. Responses vary from
+     * simple text messages to more sophisticated, structured payloads used
+     * to drive complex logic.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder>
+        getResponseMessagesBuilderList() {
+      return getResponseMessagesFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>
+        getResponseMessagesFieldBuilder() {
+      if (responseMessagesBuilder_ == null) {
+        responseMessagesBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>(
+                responseMessages_,
+                ((bitField0_ & 0x00000001) != 0),
+                getParentForChildren(),
+                isClean());
+        responseMessages_ = null;
+      }
+      return responseMessagesBuilder_;
+    }
+
+    private java.util.List<com.google.rpc.Status> webhookStatuses_ =
+        java.util.Collections.emptyList();
+
+    private void ensureWebhookStatusesIsMutable() {
+      if (!((bitField0_ & 0x00000002) != 0)) {
+        webhookStatuses_ = new java.util.ArrayList<com.google.rpc.Status>(webhookStatuses_);
+        bitField0_ |= 0x00000002;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.rpc.Status, com.google.rpc.Status.Builder, com.google.rpc.StatusOrBuilder>
+        webhookStatusesBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook call status in the order of call sequence.
+     * </pre>
+     *
+     * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+     */
+    public java.util.List<com.google.rpc.Status> getWebhookStatusesList() {
+      if (webhookStatusesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(webhookStatuses_);
+      } else {
+        return webhookStatusesBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook call status in the order of call sequence.
+     * </pre>
+     *
+     * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+     */
+    public int getWebhookStatusesCount() {
+      if (webhookStatusesBuilder_ == null) {
+        return webhookStatuses_.size();
+      } else {
+        return webhookStatusesBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook call status in the order of call sequence.
+     * </pre>
+     *
+     * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+     */
+    public com.google.rpc.Status getWebhookStatuses(int index) {
+      if (webhookStatusesBuilder_ == null) {
+        return webhookStatuses_.get(index);
+      } else {
+        return webhookStatusesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook call status in the order of call sequence.
+     * </pre>
+     *
+     * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+     */
+    public Builder setWebhookStatuses(int index, com.google.rpc.Status value) {
+      if (webhookStatusesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureWebhookStatusesIsMutable();
+        webhookStatuses_.set(index, value);
+        onChanged();
+      } else {
+        webhookStatusesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook call status in the order of call sequence.
+     * </pre>
+     *
+     * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+     */
+    public Builder setWebhookStatuses(int index, com.google.rpc.Status.Builder builderForValue) {
+      if (webhookStatusesBuilder_ == null) {
+        ensureWebhookStatusesIsMutable();
+        webhookStatuses_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        webhookStatusesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook call status in the order of call sequence.
+     * </pre>
+     *
+     * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+     */
+    public Builder addWebhookStatuses(com.google.rpc.Status value) {
+      if (webhookStatusesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureWebhookStatusesIsMutable();
+        webhookStatuses_.add(value);
+        onChanged();
+      } else {
+        webhookStatusesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook call status in the order of call sequence.
+     * </pre>
+     *
+     * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+     */
+    public Builder addWebhookStatuses(int index, com.google.rpc.Status value) {
+      if (webhookStatusesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureWebhookStatusesIsMutable();
+        webhookStatuses_.add(index, value);
+        onChanged();
+      } else {
+        webhookStatusesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook call status in the order of call sequence.
+     * </pre>
+     *
+     * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+     */
+    public Builder addWebhookStatuses(com.google.rpc.Status.Builder builderForValue) {
+      if (webhookStatusesBuilder_ == null) {
+        ensureWebhookStatusesIsMutable();
+        webhookStatuses_.add(builderForValue.build());
+        onChanged();
+      } else {
+        webhookStatusesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook call status in the order of call sequence.
+     * </pre>
+     *
+     * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+     */
+    public Builder addWebhookStatuses(int index, com.google.rpc.Status.Builder builderForValue) {
+      if (webhookStatusesBuilder_ == null) {
+        ensureWebhookStatusesIsMutable();
+        webhookStatuses_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        webhookStatusesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook call status in the order of call sequence.
+     * </pre>
+     *
+     * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+     */
+    public Builder addAllWebhookStatuses(
+        java.lang.Iterable<? extends com.google.rpc.Status> values) {
+      if (webhookStatusesBuilder_ == null) {
+        ensureWebhookStatusesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, webhookStatuses_);
+        onChanged();
+      } else {
+        webhookStatusesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook call status in the order of call sequence.
+     * </pre>
+     *
+     * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+     */
+    public Builder clearWebhookStatuses() {
+      if (webhookStatusesBuilder_ == null) {
+        webhookStatuses_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000002);
+        onChanged();
+      } else {
+        webhookStatusesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook call status in the order of call sequence.
+     * </pre>
+     *
+     * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+     */
+    public Builder removeWebhookStatuses(int index) {
+      if (webhookStatusesBuilder_ == null) {
+        ensureWebhookStatusesIsMutable();
+        webhookStatuses_.remove(index);
+        onChanged();
+      } else {
+        webhookStatusesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook call status in the order of call sequence.
+     * </pre>
+     *
+     * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+     */
+    public com.google.rpc.Status.Builder getWebhookStatusesBuilder(int index) {
+      return getWebhookStatusesFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook call status in the order of call sequence.
+     * </pre>
+     *
+     * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+     */
+    public com.google.rpc.StatusOrBuilder getWebhookStatusesOrBuilder(int index) {
+      if (webhookStatusesBuilder_ == null) {
+        return webhookStatuses_.get(index);
+      } else {
+        return webhookStatusesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook call status in the order of call sequence.
+     * </pre>
+     *
+     * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+     */
+    public java.util.List<? extends com.google.rpc.StatusOrBuilder>
+        getWebhookStatusesOrBuilderList() {
+      if (webhookStatusesBuilder_ != null) {
+        return webhookStatusesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(webhookStatuses_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook call status in the order of call sequence.
+     * </pre>
+     *
+     * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+     */
+    public com.google.rpc.Status.Builder addWebhookStatusesBuilder() {
+      return getWebhookStatusesFieldBuilder()
+          .addBuilder(com.google.rpc.Status.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook call status in the order of call sequence.
+     * </pre>
+     *
+     * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+     */
+    public com.google.rpc.Status.Builder addWebhookStatusesBuilder(int index) {
+      return getWebhookStatusesFieldBuilder()
+          .addBuilder(index, com.google.rpc.Status.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook call status in the order of call sequence.
+     * </pre>
+     *
+     * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+     */
+    public java.util.List<com.google.rpc.Status.Builder> getWebhookStatusesBuilderList() {
+      return getWebhookStatusesFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.rpc.Status, com.google.rpc.Status.Builder, com.google.rpc.StatusOrBuilder>
+        getWebhookStatusesFieldBuilder() {
+      if (webhookStatusesBuilder_ == null) {
+        webhookStatusesBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.rpc.Status,
+                com.google.rpc.Status.Builder,
+                com.google.rpc.StatusOrBuilder>(
+                webhookStatuses_,
+                ((bitField0_ & 0x00000002) != 0),
+                getParentForChildren(),
+                isClean());
+        webhookStatuses_ = null;
+      }
+      return webhookStatusesBuilder_;
+    }
+
+    private java.util.List<com.google.protobuf.Struct> webhookPayloads_ =
+        java.util.Collections.emptyList();
+
+    private void ensureWebhookPayloadsIsMutable() {
+      if (!((bitField0_ & 0x00000004) != 0)) {
+        webhookPayloads_ = new java.util.ArrayList<com.google.protobuf.Struct>(webhookPayloads_);
+        bitField0_ |= 0x00000004;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.protobuf.Struct,
+            com.google.protobuf.Struct.Builder,
+            com.google.protobuf.StructOrBuilder>
+        webhookPayloadsBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+     * the order of call sequence. If some webhook call fails or doesn't return
+     * any payload, an empty `Struct` would be used instead.
+     * </pre>
+     *
+     * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+     */
+    public java.util.List<com.google.protobuf.Struct> getWebhookPayloadsList() {
+      if (webhookPayloadsBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(webhookPayloads_);
+      } else {
+        return webhookPayloadsBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+     * the order of call sequence. If some webhook call fails or doesn't return
+     * any payload, an empty `Struct` would be used instead.
+     * </pre>
+     *
+     * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+     */
+    public int getWebhookPayloadsCount() {
+      if (webhookPayloadsBuilder_ == null) {
+        return webhookPayloads_.size();
+      } else {
+        return webhookPayloadsBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+     * the order of call sequence. If some webhook call fails or doesn't return
+     * any payload, an empty `Struct` would be used instead.
+     * </pre>
+     *
+     * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+     */
+    public com.google.protobuf.Struct getWebhookPayloads(int index) {
+      if (webhookPayloadsBuilder_ == null) {
+        return webhookPayloads_.get(index);
+      } else {
+        return webhookPayloadsBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+     * the order of call sequence. If some webhook call fails or doesn't return
+     * any payload, an empty `Struct` would be used instead.
+     * </pre>
+     *
+     * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+     */
+    public Builder setWebhookPayloads(int index, com.google.protobuf.Struct value) {
+      if (webhookPayloadsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureWebhookPayloadsIsMutable();
+        webhookPayloads_.set(index, value);
+        onChanged();
+      } else {
+        webhookPayloadsBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+     * the order of call sequence. If some webhook call fails or doesn't return
+     * any payload, an empty `Struct` would be used instead.
+     * </pre>
+     *
+     * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+     */
+    public Builder setWebhookPayloads(
+        int index, com.google.protobuf.Struct.Builder builderForValue) {
+      if (webhookPayloadsBuilder_ == null) {
+        ensureWebhookPayloadsIsMutable();
+        webhookPayloads_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        webhookPayloadsBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+     * the order of call sequence. If some webhook call fails or doesn't return
+     * any payload, an empty `Struct` would be used instead.
+     * </pre>
+     *
+     * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+     */
+    public Builder addWebhookPayloads(com.google.protobuf.Struct value) {
+      if (webhookPayloadsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureWebhookPayloadsIsMutable();
+        webhookPayloads_.add(value);
+        onChanged();
+      } else {
+        webhookPayloadsBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+     * the order of call sequence. If some webhook call fails or doesn't return
+     * any payload, an empty `Struct` would be used instead.
+     * </pre>
+     *
+     * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+     */
+    public Builder addWebhookPayloads(int index, com.google.protobuf.Struct value) {
+      if (webhookPayloadsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureWebhookPayloadsIsMutable();
+        webhookPayloads_.add(index, value);
+        onChanged();
+      } else {
+        webhookPayloadsBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+     * the order of call sequence. If some webhook call fails or doesn't return
+     * any payload, an empty `Struct` would be used instead.
+     * </pre>
+     *
+     * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+     */
+    public Builder addWebhookPayloads(com.google.protobuf.Struct.Builder builderForValue) {
+      if (webhookPayloadsBuilder_ == null) {
+        ensureWebhookPayloadsIsMutable();
+        webhookPayloads_.add(builderForValue.build());
+        onChanged();
+      } else {
+        webhookPayloadsBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+     * the order of call sequence. If some webhook call fails or doesn't return
+     * any payload, an empty `Struct` would be used instead.
+     * </pre>
+     *
+     * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+     */
+    public Builder addWebhookPayloads(
+        int index, com.google.protobuf.Struct.Builder builderForValue) {
+      if (webhookPayloadsBuilder_ == null) {
+        ensureWebhookPayloadsIsMutable();
+        webhookPayloads_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        webhookPayloadsBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+     * the order of call sequence. If some webhook call fails or doesn't return
+     * any payload, an empty `Struct` would be used instead.
+     * </pre>
+     *
+     * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+     */
+    public Builder addAllWebhookPayloads(
+        java.lang.Iterable<? extends com.google.protobuf.Struct> values) {
+      if (webhookPayloadsBuilder_ == null) {
+        ensureWebhookPayloadsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, webhookPayloads_);
+        onChanged();
+      } else {
+        webhookPayloadsBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+     * the order of call sequence. If some webhook call fails or doesn't return
+     * any payload, an empty `Struct` would be used instead.
+     * </pre>
+     *
+     * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+     */
+    public Builder clearWebhookPayloads() {
+      if (webhookPayloadsBuilder_ == null) {
+        webhookPayloads_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000004);
+        onChanged();
+      } else {
+        webhookPayloadsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+     * the order of call sequence. If some webhook call fails or doesn't return
+     * any payload, an empty `Struct` would be used instead.
+     * </pre>
+     *
+     * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+     */
+    public Builder removeWebhookPayloads(int index) {
+      if (webhookPayloadsBuilder_ == null) {
+        ensureWebhookPayloadsIsMutable();
+        webhookPayloads_.remove(index);
+        onChanged();
+      } else {
+        webhookPayloadsBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+     * the order of call sequence. If some webhook call fails or doesn't return
+     * any payload, an empty `Struct` would be used instead.
+     * </pre>
+     *
+     * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+     */
+    public com.google.protobuf.Struct.Builder getWebhookPayloadsBuilder(int index) {
+      return getWebhookPayloadsFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+     * the order of call sequence. If some webhook call fails or doesn't return
+     * any payload, an empty `Struct` would be used instead.
+     * </pre>
+     *
+     * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+     */
+    public com.google.protobuf.StructOrBuilder getWebhookPayloadsOrBuilder(int index) {
+      if (webhookPayloadsBuilder_ == null) {
+        return webhookPayloads_.get(index);
+      } else {
+        return webhookPayloadsBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+     * the order of call sequence. If some webhook call fails or doesn't return
+     * any payload, an empty `Struct` would be used instead.
+     * </pre>
+     *
+     * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+     */
+    public java.util.List<? extends com.google.protobuf.StructOrBuilder>
+        getWebhookPayloadsOrBuilderList() {
+      if (webhookPayloadsBuilder_ != null) {
+        return webhookPayloadsBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(webhookPayloads_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+     * the order of call sequence. If some webhook call fails or doesn't return
+     * any payload, an empty `Struct` would be used instead.
+     * </pre>
+     *
+     * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+     */
+    public com.google.protobuf.Struct.Builder addWebhookPayloadsBuilder() {
+      return getWebhookPayloadsFieldBuilder()
+          .addBuilder(com.google.protobuf.Struct.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+     * the order of call sequence. If some webhook call fails or doesn't return
+     * any payload, an empty `Struct` would be used instead.
+     * </pre>
+     *
+     * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+     */
+    public com.google.protobuf.Struct.Builder addWebhookPayloadsBuilder(int index) {
+      return getWebhookPayloadsFieldBuilder()
+          .addBuilder(index, com.google.protobuf.Struct.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+     * the order of call sequence. If some webhook call fails or doesn't return
+     * any payload, an empty `Struct` would be used instead.
+     * </pre>
+     *
+     * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+     */
+    public java.util.List<com.google.protobuf.Struct.Builder> getWebhookPayloadsBuilderList() {
+      return getWebhookPayloadsFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.protobuf.Struct,
+            com.google.protobuf.Struct.Builder,
+            com.google.protobuf.StructOrBuilder>
+        getWebhookPayloadsFieldBuilder() {
+      if (webhookPayloadsBuilder_ == null) {
+        webhookPayloadsBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.protobuf.Struct,
+                com.google.protobuf.Struct.Builder,
+                com.google.protobuf.StructOrBuilder>(
+                webhookPayloads_,
+                ((bitField0_ & 0x00000004) != 0),
+                getParentForChildren(),
+                isClean());
+        webhookPayloads_ = null;
+      }
+      return webhookPayloadsBuilder_;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Page currentPage_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Page,
+            com.google.cloud.dialogflow.cx.v3beta1.Page.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder>
+        currentPageBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+     * including but not limited to `name` and `display_name`.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 7;</code>
+     *
+     * @return Whether the currentPage field is set.
+     */
+    public boolean hasCurrentPage() {
+      return currentPageBuilder_ != null || currentPage_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+     * including but not limited to `name` and `display_name`.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 7;</code>
+     *
+     * @return The currentPage.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Page getCurrentPage() {
+      if (currentPageBuilder_ == null) {
+        return currentPage_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Page.getDefaultInstance()
+            : currentPage_;
+      } else {
+        return currentPageBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+     * including but not limited to `name` and `display_name`.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 7;</code>
+     */
+    public Builder setCurrentPage(com.google.cloud.dialogflow.cx.v3beta1.Page value) {
+      if (currentPageBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        currentPage_ = value;
+        onChanged();
+      } else {
+        currentPageBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+     * including but not limited to `name` and `display_name`.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 7;</code>
+     */
+    public Builder setCurrentPage(
+        com.google.cloud.dialogflow.cx.v3beta1.Page.Builder builderForValue) {
+      if (currentPageBuilder_ == null) {
+        currentPage_ = builderForValue.build();
+        onChanged();
+      } else {
+        currentPageBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+     * including but not limited to `name` and `display_name`.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 7;</code>
+     */
+    public Builder mergeCurrentPage(com.google.cloud.dialogflow.cx.v3beta1.Page value) {
+      if (currentPageBuilder_ == null) {
+        if (currentPage_ != null) {
+          currentPage_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Page.newBuilder(currentPage_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          currentPage_ = value;
+        }
+        onChanged();
+      } else {
+        currentPageBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+     * including but not limited to `name` and `display_name`.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 7;</code>
+     */
+    public Builder clearCurrentPage() {
+      if (currentPageBuilder_ == null) {
+        currentPage_ = null;
+        onChanged();
+      } else {
+        currentPage_ = null;
+        currentPageBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+     * including but not limited to `name` and `display_name`.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 7;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Page.Builder getCurrentPageBuilder() {
+
+      onChanged();
+      return getCurrentPageFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+     * including but not limited to `name` and `display_name`.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 7;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder getCurrentPageOrBuilder() {
+      if (currentPageBuilder_ != null) {
+        return currentPageBuilder_.getMessageOrBuilder();
+      } else {
+        return currentPage_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Page.getDefaultInstance()
+            : currentPage_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+     * including but not limited to `name` and `display_name`.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 7;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Page,
+            com.google.cloud.dialogflow.cx.v3beta1.Page.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder>
+        getCurrentPageFieldBuilder() {
+      if (currentPageBuilder_ == null) {
+        currentPageBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Page,
+                com.google.cloud.dialogflow.cx.v3beta1.Page.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder>(
+                getCurrentPage(), getParentForChildren(), isClean());
+        currentPage_ = null;
+      }
+      return currentPageBuilder_;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Intent intent_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Intent,
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder>
+        intentBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the conversational query. Some, not all fields
+     * are filled in this message, including but not limited to: `name` and
+     * `display_name`.
+     * This field is deprecated, please use [QueryResult.match][google.cloud.dialogflow.cx.v3beta1.QueryResult.match] instead.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 8 [deprecated = true];</code>
+     *
+     * @return Whether the intent field is set.
+     */
+    @java.lang.Deprecated
+    public boolean hasIntent() {
+      return intentBuilder_ != null || intent_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the conversational query. Some, not all fields
+     * are filled in this message, including but not limited to: `name` and
+     * `display_name`.
+     * This field is deprecated, please use [QueryResult.match][google.cloud.dialogflow.cx.v3beta1.QueryResult.match] instead.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 8 [deprecated = true];</code>
+     *
+     * @return The intent.
+     */
+    @java.lang.Deprecated
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent getIntent() {
+      if (intentBuilder_ == null) {
+        return intent_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Intent.getDefaultInstance()
+            : intent_;
+      } else {
+        return intentBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the conversational query. Some, not all fields
+     * are filled in this message, including but not limited to: `name` and
+     * `display_name`.
+     * This field is deprecated, please use [QueryResult.match][google.cloud.dialogflow.cx.v3beta1.QueryResult.match] instead.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 8 [deprecated = true];</code>
+     */
+    @java.lang.Deprecated
+    public Builder setIntent(com.google.cloud.dialogflow.cx.v3beta1.Intent value) {
+      if (intentBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        intent_ = value;
+        onChanged();
+      } else {
+        intentBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the conversational query. Some, not all fields
+     * are filled in this message, including but not limited to: `name` and
+     * `display_name`.
+     * This field is deprecated, please use [QueryResult.match][google.cloud.dialogflow.cx.v3beta1.QueryResult.match] instead.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 8 [deprecated = true];</code>
+     */
+    @java.lang.Deprecated
+    public Builder setIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder builderForValue) {
+      if (intentBuilder_ == null) {
+        intent_ = builderForValue.build();
+        onChanged();
+      } else {
+        intentBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the conversational query. Some, not all fields
+     * are filled in this message, including but not limited to: `name` and
+     * `display_name`.
+     * This field is deprecated, please use [QueryResult.match][google.cloud.dialogflow.cx.v3beta1.QueryResult.match] instead.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 8 [deprecated = true];</code>
+     */
+    @java.lang.Deprecated
+    public Builder mergeIntent(com.google.cloud.dialogflow.cx.v3beta1.Intent value) {
+      if (intentBuilder_ == null) {
+        if (intent_ != null) {
+          intent_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.newBuilder(intent_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          intent_ = value;
+        }
+        onChanged();
+      } else {
+        intentBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the conversational query. Some, not all fields
+     * are filled in this message, including but not limited to: `name` and
+     * `display_name`.
+     * This field is deprecated, please use [QueryResult.match][google.cloud.dialogflow.cx.v3beta1.QueryResult.match] instead.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 8 [deprecated = true];</code>
+     */
+    @java.lang.Deprecated
+    public Builder clearIntent() {
+      if (intentBuilder_ == null) {
+        intent_ = null;
+        onChanged();
+      } else {
+        intent_ = null;
+        intentBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the conversational query. Some, not all fields
+     * are filled in this message, including but not limited to: `name` and
+     * `display_name`.
+     * This field is deprecated, please use [QueryResult.match][google.cloud.dialogflow.cx.v3beta1.QueryResult.match] instead.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 8 [deprecated = true];</code>
+     */
+    @java.lang.Deprecated
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder getIntentBuilder() {
+
+      onChanged();
+      return getIntentFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the conversational query. Some, not all fields
+     * are filled in this message, including but not limited to: `name` and
+     * `display_name`.
+     * This field is deprecated, please use [QueryResult.match][google.cloud.dialogflow.cx.v3beta1.QueryResult.match] instead.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 8 [deprecated = true];</code>
+     */
+    @java.lang.Deprecated
+    public com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder getIntentOrBuilder() {
+      if (intentBuilder_ != null) {
+        return intentBuilder_.getMessageOrBuilder();
+      } else {
+        return intent_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Intent.getDefaultInstance()
+            : intent_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the conversational query. Some, not all fields
+     * are filled in this message, including but not limited to: `name` and
+     * `display_name`.
+     * This field is deprecated, please use [QueryResult.match][google.cloud.dialogflow.cx.v3beta1.QueryResult.match] instead.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 8 [deprecated = true];</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Intent,
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder>
+        getIntentFieldBuilder() {
+      if (intentBuilder_ == null) {
+        intentBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Intent,
+                com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder>(
+                getIntent(), getParentForChildren(), isClean());
+        intent_ = null;
+      }
+      return intentBuilder_;
+    }
+
+    private float intentDetectionConfidence_;
+    /**
+     *
+     *
+     * <pre>
+     * The intent detection confidence. Values range from 0.0 (completely
+     * uncertain) to 1.0 (completely certain).
+     * This value is for informational purpose only and is only used to
+     * help match the best intent within the classification threshold.
+     * This value may change for the same end-user expression at any time due to a
+     * model retraining or change in implementation.
+     * This field is deprecated, please use [QueryResult.match][google.cloud.dialogflow.cx.v3beta1.QueryResult.match] instead.
+     * </pre>
+     *
+     * <code>float intent_detection_confidence = 9 [deprecated = true];</code>
+     *
+     * @return The intentDetectionConfidence.
+     */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public float getIntentDetectionConfidence() {
+      return intentDetectionConfidence_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The intent detection confidence. Values range from 0.0 (completely
+     * uncertain) to 1.0 (completely certain).
+     * This value is for informational purpose only and is only used to
+     * help match the best intent within the classification threshold.
+     * This value may change for the same end-user expression at any time due to a
+     * model retraining or change in implementation.
+     * This field is deprecated, please use [QueryResult.match][google.cloud.dialogflow.cx.v3beta1.QueryResult.match] instead.
+     * </pre>
+     *
+     * <code>float intent_detection_confidence = 9 [deprecated = true];</code>
+     *
+     * @param value The intentDetectionConfidence to set.
+     * @return This builder for chaining.
+     */
+    @java.lang.Deprecated
+    public Builder setIntentDetectionConfidence(float value) {
+
+      intentDetectionConfidence_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The intent detection confidence. Values range from 0.0 (completely
+     * uncertain) to 1.0 (completely certain).
+     * This value is for informational purpose only and is only used to
+     * help match the best intent within the classification threshold.
+     * This value may change for the same end-user expression at any time due to a
+     * model retraining or change in implementation.
+     * This field is deprecated, please use [QueryResult.match][google.cloud.dialogflow.cx.v3beta1.QueryResult.match] instead.
+     * </pre>
+     *
+     * <code>float intent_detection_confidence = 9 [deprecated = true];</code>
+     *
+     * @return This builder for chaining.
+     */
+    @java.lang.Deprecated
+    public Builder clearIntentDetectionConfidence() {
+
+      intentDetectionConfidence_ = 0F;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Match match_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Match,
+            com.google.cloud.dialogflow.cx.v3beta1.Match.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.MatchOrBuilder>
+        matchBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Intent match result, could be an intent or an event.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 15;</code>
+     *
+     * @return Whether the match field is set.
+     */
+    public boolean hasMatch() {
+      return matchBuilder_ != null || match_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Intent match result, could be an intent or an event.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 15;</code>
+     *
+     * @return The match.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Match getMatch() {
+      if (matchBuilder_ == null) {
+        return match_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Match.getDefaultInstance()
+            : match_;
+      } else {
+        return matchBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Intent match result, could be an intent or an event.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 15;</code>
+     */
+    public Builder setMatch(com.google.cloud.dialogflow.cx.v3beta1.Match value) {
+      if (matchBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        match_ = value;
+        onChanged();
+      } else {
+        matchBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Intent match result, could be an intent or an event.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 15;</code>
+     */
+    public Builder setMatch(com.google.cloud.dialogflow.cx.v3beta1.Match.Builder builderForValue) {
+      if (matchBuilder_ == null) {
+        match_ = builderForValue.build();
+        onChanged();
+      } else {
+        matchBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Intent match result, could be an intent or an event.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 15;</code>
+     */
+    public Builder mergeMatch(com.google.cloud.dialogflow.cx.v3beta1.Match value) {
+      if (matchBuilder_ == null) {
+        if (match_ != null) {
+          match_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Match.newBuilder(match_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          match_ = value;
+        }
+        onChanged();
+      } else {
+        matchBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Intent match result, could be an intent or an event.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 15;</code>
+     */
+    public Builder clearMatch() {
+      if (matchBuilder_ == null) {
+        match_ = null;
+        onChanged();
+      } else {
+        match_ = null;
+        matchBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Intent match result, could be an intent or an event.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 15;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Match.Builder getMatchBuilder() {
+
+      onChanged();
+      return getMatchFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Intent match result, could be an intent or an event.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 15;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.MatchOrBuilder getMatchOrBuilder() {
+      if (matchBuilder_ != null) {
+        return matchBuilder_.getMessageOrBuilder();
+      } else {
+        return match_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Match.getDefaultInstance()
+            : match_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Intent match result, could be an intent or an event.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 15;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Match,
+            com.google.cloud.dialogflow.cx.v3beta1.Match.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.MatchOrBuilder>
+        getMatchFieldBuilder() {
+      if (matchBuilder_ == null) {
+        matchBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Match,
+                com.google.cloud.dialogflow.cx.v3beta1.Match.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.MatchOrBuilder>(
+                getMatch(), getParentForChildren(), isClean());
+        match_ = null;
+      }
+      return matchBuilder_;
+    }
+
+    private com.google.protobuf.Struct diagnosticInfo_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Struct,
+            com.google.protobuf.Struct.Builder,
+            com.google.protobuf.StructOrBuilder>
+        diagnosticInfoBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The free-form diagnostic info. For example, this field could contain
+     * webhook call latency. The string keys of the Struct's fields map can change
+     * without notice.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct diagnostic_info = 10;</code>
+     *
+     * @return Whether the diagnosticInfo field is set.
+     */
+    public boolean hasDiagnosticInfo() {
+      return diagnosticInfoBuilder_ != null || diagnosticInfo_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The free-form diagnostic info. For example, this field could contain
+     * webhook call latency. The string keys of the Struct's fields map can change
+     * without notice.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct diagnostic_info = 10;</code>
+     *
+     * @return The diagnosticInfo.
+     */
+    public com.google.protobuf.Struct getDiagnosticInfo() {
+      if (diagnosticInfoBuilder_ == null) {
+        return diagnosticInfo_ == null
+            ? com.google.protobuf.Struct.getDefaultInstance()
+            : diagnosticInfo_;
+      } else {
+        return diagnosticInfoBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The free-form diagnostic info. For example, this field could contain
+     * webhook call latency. The string keys of the Struct's fields map can change
+     * without notice.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct diagnostic_info = 10;</code>
+     */
+    public Builder setDiagnosticInfo(com.google.protobuf.Struct value) {
+      if (diagnosticInfoBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        diagnosticInfo_ = value;
+        onChanged();
+      } else {
+        diagnosticInfoBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The free-form diagnostic info. For example, this field could contain
+     * webhook call latency. The string keys of the Struct's fields map can change
+     * without notice.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct diagnostic_info = 10;</code>
+     */
+    public Builder setDiagnosticInfo(com.google.protobuf.Struct.Builder builderForValue) {
+      if (diagnosticInfoBuilder_ == null) {
+        diagnosticInfo_ = builderForValue.build();
+        onChanged();
+      } else {
+        diagnosticInfoBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The free-form diagnostic info. For example, this field could contain
+     * webhook call latency. The string keys of the Struct's fields map can change
+     * without notice.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct diagnostic_info = 10;</code>
+     */
+    public Builder mergeDiagnosticInfo(com.google.protobuf.Struct value) {
+      if (diagnosticInfoBuilder_ == null) {
+        if (diagnosticInfo_ != null) {
+          diagnosticInfo_ =
+              com.google.protobuf.Struct.newBuilder(diagnosticInfo_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          diagnosticInfo_ = value;
+        }
+        onChanged();
+      } else {
+        diagnosticInfoBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The free-form diagnostic info. For example, this field could contain
+     * webhook call latency. The string keys of the Struct's fields map can change
+     * without notice.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct diagnostic_info = 10;</code>
+     */
+    public Builder clearDiagnosticInfo() {
+      if (diagnosticInfoBuilder_ == null) {
+        diagnosticInfo_ = null;
+        onChanged();
+      } else {
+        diagnosticInfo_ = null;
+        diagnosticInfoBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The free-form diagnostic info. For example, this field could contain
+     * webhook call latency. The string keys of the Struct's fields map can change
+     * without notice.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct diagnostic_info = 10;</code>
+     */
+    public com.google.protobuf.Struct.Builder getDiagnosticInfoBuilder() {
+
+      onChanged();
+      return getDiagnosticInfoFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The free-form diagnostic info. For example, this field could contain
+     * webhook call latency. The string keys of the Struct's fields map can change
+     * without notice.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct diagnostic_info = 10;</code>
+     */
+    public com.google.protobuf.StructOrBuilder getDiagnosticInfoOrBuilder() {
+      if (diagnosticInfoBuilder_ != null) {
+        return diagnosticInfoBuilder_.getMessageOrBuilder();
+      } else {
+        return diagnosticInfo_ == null
+            ? com.google.protobuf.Struct.getDefaultInstance()
+            : diagnosticInfo_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The free-form diagnostic info. For example, this field could contain
+     * webhook call latency. The string keys of the Struct's fields map can change
+     * without notice.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct diagnostic_info = 10;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Struct,
+            com.google.protobuf.Struct.Builder,
+            com.google.protobuf.StructOrBuilder>
+        getDiagnosticInfoFieldBuilder() {
+      if (diagnosticInfoBuilder_ == null) {
+        diagnosticInfoBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.Struct,
+                com.google.protobuf.Struct.Builder,
+                com.google.protobuf.StructOrBuilder>(
+                getDiagnosticInfo(), getParentForChildren(), isClean());
+        diagnosticInfo_ = null;
+      }
+      return diagnosticInfoBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.QueryResult)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.QueryResult)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.QueryResult DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.QueryResult();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.QueryResult getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<QueryResult> PARSER =
+      new com.google.protobuf.AbstractParser<QueryResult>() {
+        @java.lang.Override
+        public QueryResult parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new QueryResult(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<QueryResult> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<QueryResult> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.QueryResult getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryResultOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryResultOrBuilder.java
new file mode 100644
index 000000000..13c0bf7fc
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryResultOrBuilder.java
@@ -0,0 +1,598 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface QueryResultOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.QueryResult)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * If [natural language text][google.cloud.dialogflow.cx.v3beta1.TextInput] was provided as input, this field
+   * will contain a copy of the text.
+   * </pre>
+   *
+   * <code>string text = 1;</code>
+   *
+   * @return The text.
+   */
+  java.lang.String getText();
+  /**
+   *
+   *
+   * <pre>
+   * If [natural language text][google.cloud.dialogflow.cx.v3beta1.TextInput] was provided as input, this field
+   * will contain a copy of the text.
+   * </pre>
+   *
+   * <code>string text = 1;</code>
+   *
+   * @return The bytes for text.
+   */
+  com.google.protobuf.ByteString getTextBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * If an [intent][google.cloud.dialogflow.cx.v3beta1.IntentInput] was provided as input, this field will
+   * contain a copy of the intent identifier.
+   * </pre>
+   *
+   * <code>string trigger_intent = 11;</code>
+   *
+   * @return The triggerIntent.
+   */
+  java.lang.String getTriggerIntent();
+  /**
+   *
+   *
+   * <pre>
+   * If an [intent][google.cloud.dialogflow.cx.v3beta1.IntentInput] was provided as input, this field will
+   * contain a copy of the intent identifier.
+   * </pre>
+   *
+   * <code>string trigger_intent = 11;</code>
+   *
+   * @return The bytes for triggerIntent.
+   */
+  com.google.protobuf.ByteString getTriggerIntentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * If [natural language speech audio][google.cloud.dialogflow.cx.v3beta1.AudioInput] was provided as input,
+   * this field will contain the trascript for the audio.
+   * </pre>
+   *
+   * <code>string transcript = 12;</code>
+   *
+   * @return The transcript.
+   */
+  java.lang.String getTranscript();
+  /**
+   *
+   *
+   * <pre>
+   * If [natural language speech audio][google.cloud.dialogflow.cx.v3beta1.AudioInput] was provided as input,
+   * this field will contain the trascript for the audio.
+   * </pre>
+   *
+   * <code>string transcript = 12;</code>
+   *
+   * @return The bytes for transcript.
+   */
+  com.google.protobuf.ByteString getTranscriptBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * If an [event][google.cloud.dialogflow.cx.v3beta1.EventInput] was provided as input, this field will contain
+   * the name of the event.
+   * </pre>
+   *
+   * <code>string trigger_event = 14;</code>
+   *
+   * @return The triggerEvent.
+   */
+  java.lang.String getTriggerEvent();
+  /**
+   *
+   *
+   * <pre>
+   * If an [event][google.cloud.dialogflow.cx.v3beta1.EventInput] was provided as input, this field will contain
+   * the name of the event.
+   * </pre>
+   *
+   * <code>string trigger_event = 14;</code>
+   *
+   * @return The bytes for triggerEvent.
+   */
+  com.google.protobuf.ByteString getTriggerEventBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The language that was triggered during intent detection.
+   * See [Language
+   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * for a list of the currently supported language codes.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * The language that was triggered during intent detection.
+   * See [Language
+   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * for a list of the currently supported language codes.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The collected [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+   * Depending on your protocol or client library language, this is a
+   * map, associative array, symbol table, dictionary, or JSON object
+   * composed of a collection of (MapKey, MapValue) pairs:
+   * -   MapKey type: string
+   * -   MapKey value: parameter name
+   * -   MapValue type:
+   *     -   If parameter's entity type is a composite entity: map
+   *     -   Else: string or number, depending on parameter value type
+   * -   MapValue value:
+   *     -   If parameter's entity type is a composite entity:
+   *         map from composite entity property names to property values
+   *     -   Else: parameter value
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct parameters = 3;</code>
+   *
+   * @return Whether the parameters field is set.
+   */
+  boolean hasParameters();
+  /**
+   *
+   *
+   * <pre>
+   * The collected [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+   * Depending on your protocol or client library language, this is a
+   * map, associative array, symbol table, dictionary, or JSON object
+   * composed of a collection of (MapKey, MapValue) pairs:
+   * -   MapKey type: string
+   * -   MapKey value: parameter name
+   * -   MapValue type:
+   *     -   If parameter's entity type is a composite entity: map
+   *     -   Else: string or number, depending on parameter value type
+   * -   MapValue value:
+   *     -   If parameter's entity type is a composite entity:
+   *         map from composite entity property names to property values
+   *     -   Else: parameter value
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct parameters = 3;</code>
+   *
+   * @return The parameters.
+   */
+  com.google.protobuf.Struct getParameters();
+  /**
+   *
+   *
+   * <pre>
+   * The collected [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+   * Depending on your protocol or client library language, this is a
+   * map, associative array, symbol table, dictionary, or JSON object
+   * composed of a collection of (MapKey, MapValue) pairs:
+   * -   MapKey type: string
+   * -   MapKey value: parameter name
+   * -   MapValue type:
+   *     -   If parameter's entity type is a composite entity: map
+   *     -   Else: string or number, depending on parameter value type
+   * -   MapValue value:
+   *     -   If parameter's entity type is a composite entity:
+   *         map from composite entity property names to property values
+   *     -   Else: parameter value
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct parameters = 3;</code>
+   */
+  com.google.protobuf.StructOrBuilder getParametersOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich messages returned to the client. Responses vary from
+   * simple text messages to more sophisticated, structured payloads used
+   * to drive complex logic.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+   * </code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage> getResponseMessagesList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich messages returned to the client. Responses vary from
+   * simple text messages to more sophisticated, structured payloads used
+   * to drive complex logic.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage getResponseMessages(int index);
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich messages returned to the client. Responses vary from
+   * simple text messages to more sophisticated, structured payloads used
+   * to drive complex logic.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+   * </code>
+   */
+  int getResponseMessagesCount();
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich messages returned to the client. Responses vary from
+   * simple text messages to more sophisticated, structured payloads used
+   * to drive complex logic.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+   * </code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>
+      getResponseMessagesOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich messages returned to the client. Responses vary from
+   * simple text messages to more sophisticated, structured payloads used
+   * to drive complex logic.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage response_messages = 4;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder getResponseMessagesOrBuilder(
+      int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhook call status in the order of call sequence.
+   * </pre>
+   *
+   * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+   */
+  java.util.List<com.google.rpc.Status> getWebhookStatusesList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhook call status in the order of call sequence.
+   * </pre>
+   *
+   * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+   */
+  com.google.rpc.Status getWebhookStatuses(int index);
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhook call status in the order of call sequence.
+   * </pre>
+   *
+   * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+   */
+  int getWebhookStatusesCount();
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhook call status in the order of call sequence.
+   * </pre>
+   *
+   * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+   */
+  java.util.List<? extends com.google.rpc.StatusOrBuilder> getWebhookStatusesOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhook call status in the order of call sequence.
+   * </pre>
+   *
+   * <code>repeated .google.rpc.Status webhook_statuses = 13;</code>
+   */
+  com.google.rpc.StatusOrBuilder getWebhookStatusesOrBuilder(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+   * the order of call sequence. If some webhook call fails or doesn't return
+   * any payload, an empty `Struct` would be used instead.
+   * </pre>
+   *
+   * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+   */
+  java.util.List<com.google.protobuf.Struct> getWebhookPayloadsList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+   * the order of call sequence. If some webhook call fails or doesn't return
+   * any payload, an empty `Struct` would be used instead.
+   * </pre>
+   *
+   * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+   */
+  com.google.protobuf.Struct getWebhookPayloads(int index);
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+   * the order of call sequence. If some webhook call fails or doesn't return
+   * any payload, an empty `Struct` would be used instead.
+   * </pre>
+   *
+   * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+   */
+  int getWebhookPayloadsCount();
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+   * the order of call sequence. If some webhook call fails or doesn't return
+   * any payload, an empty `Struct` would be used instead.
+   * </pre>
+   *
+   * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+   */
+  java.util.List<? extends com.google.protobuf.StructOrBuilder> getWebhookPayloadsOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+   * the order of call sequence. If some webhook call fails or doesn't return
+   * any payload, an empty `Struct` would be used instead.
+   * </pre>
+   *
+   * <code>repeated .google.protobuf.Struct webhook_payloads = 6;</code>
+   */
+  com.google.protobuf.StructOrBuilder getWebhookPayloadsOrBuilder(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+   * including but not limited to `name` and `display_name`.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 7;</code>
+   *
+   * @return Whether the currentPage field is set.
+   */
+  boolean hasCurrentPage();
+  /**
+   *
+   *
+   * <pre>
+   * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+   * including but not limited to `name` and `display_name`.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 7;</code>
+   *
+   * @return The currentPage.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Page getCurrentPage();
+  /**
+   *
+   *
+   * <pre>
+   * The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+   * including but not limited to `name` and `display_name`.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Page current_page = 7;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder getCurrentPageOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the conversational query. Some, not all fields
+   * are filled in this message, including but not limited to: `name` and
+   * `display_name`.
+   * This field is deprecated, please use [QueryResult.match][google.cloud.dialogflow.cx.v3beta1.QueryResult.match] instead.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 8 [deprecated = true];</code>
+   *
+   * @return Whether the intent field is set.
+   */
+  @java.lang.Deprecated
+  boolean hasIntent();
+  /**
+   *
+   *
+   * <pre>
+   * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the conversational query. Some, not all fields
+   * are filled in this message, including but not limited to: `name` and
+   * `display_name`.
+   * This field is deprecated, please use [QueryResult.match][google.cloud.dialogflow.cx.v3beta1.QueryResult.match] instead.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 8 [deprecated = true];</code>
+   *
+   * @return The intent.
+   */
+  @java.lang.Deprecated
+  com.google.cloud.dialogflow.cx.v3beta1.Intent getIntent();
+  /**
+   *
+   *
+   * <pre>
+   * The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the conversational query. Some, not all fields
+   * are filled in this message, including but not limited to: `name` and
+   * `display_name`.
+   * This field is deprecated, please use [QueryResult.match][google.cloud.dialogflow.cx.v3beta1.QueryResult.match] instead.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Intent intent = 8 [deprecated = true];</code>
+   */
+  @java.lang.Deprecated
+  com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder getIntentOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The intent detection confidence. Values range from 0.0 (completely
+   * uncertain) to 1.0 (completely certain).
+   * This value is for informational purpose only and is only used to
+   * help match the best intent within the classification threshold.
+   * This value may change for the same end-user expression at any time due to a
+   * model retraining or change in implementation.
+   * This field is deprecated, please use [QueryResult.match][google.cloud.dialogflow.cx.v3beta1.QueryResult.match] instead.
+   * </pre>
+   *
+   * <code>float intent_detection_confidence = 9 [deprecated = true];</code>
+   *
+   * @return The intentDetectionConfidence.
+   */
+  @java.lang.Deprecated
+  float getIntentDetectionConfidence();
+
+  /**
+   *
+   *
+   * <pre>
+   * Intent match result, could be an intent or an event.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 15;</code>
+   *
+   * @return Whether the match field is set.
+   */
+  boolean hasMatch();
+  /**
+   *
+   *
+   * <pre>
+   * Intent match result, could be an intent or an event.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 15;</code>
+   *
+   * @return The match.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Match getMatch();
+  /**
+   *
+   *
+   * <pre>
+   * Intent match result, could be an intent or an event.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Match match = 15;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.MatchOrBuilder getMatchOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The free-form diagnostic info. For example, this field could contain
+   * webhook call latency. The string keys of the Struct's fields map can change
+   * without notice.
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct diagnostic_info = 10;</code>
+   *
+   * @return Whether the diagnosticInfo field is set.
+   */
+  boolean hasDiagnosticInfo();
+  /**
+   *
+   *
+   * <pre>
+   * The free-form diagnostic info. For example, this field could contain
+   * webhook call latency. The string keys of the Struct's fields map can change
+   * without notice.
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct diagnostic_info = 10;</code>
+   *
+   * @return The diagnosticInfo.
+   */
+  com.google.protobuf.Struct getDiagnosticInfo();
+  /**
+   *
+   *
+   * <pre>
+   * The free-form diagnostic info. For example, this field could contain
+   * webhook call latency. The string keys of the Struct's fields map can change
+   * without notice.
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct diagnostic_info = 10;</code>
+   */
+  com.google.protobuf.StructOrBuilder getDiagnosticInfoOrBuilder();
+
+  public com.google.cloud.dialogflow.cx.v3beta1.QueryResult.QueryCase getQueryCase();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ResponseMessage.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ResponseMessage.java
new file mode 100644
index 000000000..704ccc694
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ResponseMessage.java
@@ -0,0 +1,11541 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/response_message.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Represents a response message that can be returned by a conversational agent.
+ * Response messages are also used for output audio synthesis. The approach is
+ * as follows:
+ * * If at least one OutputAudioText response is present, then all
+ *   OutputAudioText responses are linearly concatenated, and the result is used
+ *   for output audio synthesis.
+ * * If the OutputAudioText responses are a mixture of text and SSML, then the
+ *   concatenated result is treated as SSML; otherwise, the result is treated as
+ *   either text or SSML as appropriate. The agent designer should ideally use
+ *   either text or SSML consistently throughout the bot design.
+ * * Otherwise, all Text responses are linearly concatenated, and the result is
+ *   used for output audio synthesis.
+ * This approach allows for more sophisticated user experience scenarios, where
+ * the text displayed to the user may differ from what is heard.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ResponseMessage}
+ */
+public final class ResponseMessage extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ResponseMessage)
+    ResponseMessageOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ResponseMessage.newBuilder() to construct.
+  private ResponseMessage(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private ResponseMessage() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ResponseMessage();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ResponseMessage(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text.Builder subBuilder = null;
+              if (messageCase_ == 1) {
+                subBuilder =
+                    ((com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text) message_)
+                        .toBuilder();
+              }
+              message_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(
+                    (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text) message_);
+                message_ = subBuilder.buildPartial();
+              }
+              messageCase_ = 1;
+              break;
+            }
+          case 18:
+            {
+              com.google.protobuf.Struct.Builder subBuilder = null;
+              if (messageCase_ == 2) {
+                subBuilder = ((com.google.protobuf.Struct) message_).toBuilder();
+              }
+              message_ = input.readMessage(com.google.protobuf.Struct.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom((com.google.protobuf.Struct) message_);
+                message_ = subBuilder.buildPartial();
+              }
+              messageCase_ = 2;
+              break;
+            }
+          case 50:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff.Builder
+                  subBuilder = null;
+              if (messageCase_ == 6) {
+                subBuilder =
+                    ((com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff)
+                            message_)
+                        .toBuilder();
+              }
+              message_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+                          .parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(
+                    (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff)
+                        message_);
+                message_ = subBuilder.buildPartial();
+              }
+              messageCase_ = 6;
+              break;
+            }
+          case 66:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText.Builder
+                  subBuilder = null;
+              if (messageCase_ == 8) {
+                subBuilder =
+                    ((com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText)
+                            message_)
+                        .toBuilder();
+              }
+              message_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText
+                          .parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(
+                    (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText)
+                        message_);
+                message_ = subBuilder.buildPartial();
+              }
+              messageCase_ = 8;
+              break;
+            }
+          case 74:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess.Builder
+                  subBuilder = null;
+              if (messageCase_ == 9) {
+                subBuilder =
+                    ((com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess)
+                            message_)
+                        .toBuilder();
+              }
+              message_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+                          .parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(
+                    (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess)
+                        message_);
+                message_ = subBuilder.buildPartial();
+              }
+              messageCase_ = 9;
+              break;
+            }
+          case 82:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff.Builder
+                  subBuilder = null;
+              if (messageCase_ == 10) {
+                subBuilder =
+                    ((com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff)
+                            message_)
+                        .toBuilder();
+              }
+              message_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff
+                          .parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(
+                    (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff)
+                        message_);
+                message_ = subBuilder.buildPartial();
+              }
+              messageCase_ = 10;
+              break;
+            }
+          case 90:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction.Builder
+                  subBuilder = null;
+              if (messageCase_ == 11) {
+                subBuilder =
+                    ((com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction)
+                            message_)
+                        .toBuilder();
+              }
+              message_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction
+                          .parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(
+                    (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction)
+                        message_);
+                message_ = subBuilder.buildPartial();
+              }
+              messageCase_ = 11;
+              break;
+            }
+          case 98:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio.Builder subBuilder =
+                  null;
+              if (messageCase_ == 12) {
+                subBuilder =
+                    ((com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio) message_)
+                        .toBuilder();
+              }
+              message_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(
+                    (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio) message_);
+                message_ = subBuilder.buildPartial();
+              }
+              messageCase_ = 12;
+              break;
+            }
+          case 106:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Builder subBuilder =
+                  null;
+              if (messageCase_ == 13) {
+                subBuilder =
+                    ((com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio) message_)
+                        .toBuilder();
+              }
+              message_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(
+                    (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio) message_);
+                message_ = subBuilder.buildPartial();
+              }
+              messageCase_ = 13;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.class,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder.class);
+  }
+
+  public interface TextOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * <pre>
+     * Required. A collection of text responses.
+     * </pre>
+     *
+     * <code>repeated string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return A list containing the text.
+     */
+    java.util.List<java.lang.String> getTextList();
+    /**
+     *
+     *
+     * <pre>
+     * Required. A collection of text responses.
+     * </pre>
+     *
+     * <code>repeated string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The count of text.
+     */
+    int getTextCount();
+    /**
+     *
+     *
+     * <pre>
+     * Required. A collection of text responses.
+     * </pre>
+     *
+     * <code>repeated string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param index The index of the element to return.
+     * @return The text at the given index.
+     */
+    java.lang.String getText(int index);
+    /**
+     *
+     *
+     * <pre>
+     * Required. A collection of text responses.
+     * </pre>
+     *
+     * <code>repeated string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param index The index of the value to return.
+     * @return The bytes of the text at the given index.
+     */
+    com.google.protobuf.ByteString getTextBytes(int index);
+
+    /**
+     *
+     *
+     * <pre>
+     * Whether the playback of this message can be interrupted by the end
+     * user's speech and the client can then starts the next Dialogflow
+     * request.
+     * </pre>
+     *
+     * <code>bool allow_playback_interruption = 2;</code>
+     *
+     * @return The allowPlaybackInterruption.
+     */
+    boolean getAllowPlaybackInterruption();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The text response message.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text}
+   */
+  public static final class Text extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text)
+      TextOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use Text.newBuilder() to construct.
+    private Text(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+
+    private Text() {
+      text_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new Text();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private Text(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      int mutable_bitField0_ = 0;
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                  text_ = new com.google.protobuf.LazyStringArrayList();
+                  mutable_bitField0_ |= 0x00000001;
+                }
+                text_.add(s);
+                break;
+              }
+            case 16:
+              {
+                allowPlaybackInterruption_ = input.readBool();
+                break;
+              }
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        if (((mutable_bitField0_ & 0x00000001) != 0)) {
+          text_ = text_.getUnmodifiableView();
+        }
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_Text_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_Text_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text.Builder.class);
+    }
+
+    public static final int TEXT_FIELD_NUMBER = 1;
+    private com.google.protobuf.LazyStringList text_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. A collection of text responses.
+     * </pre>
+     *
+     * <code>repeated string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return A list containing the text.
+     */
+    public com.google.protobuf.ProtocolStringList getTextList() {
+      return text_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A collection of text responses.
+     * </pre>
+     *
+     * <code>repeated string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The count of text.
+     */
+    public int getTextCount() {
+      return text_.size();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A collection of text responses.
+     * </pre>
+     *
+     * <code>repeated string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param index The index of the element to return.
+     * @return The text at the given index.
+     */
+    public java.lang.String getText(int index) {
+      return text_.get(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. A collection of text responses.
+     * </pre>
+     *
+     * <code>repeated string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param index The index of the value to return.
+     * @return The bytes of the text at the given index.
+     */
+    public com.google.protobuf.ByteString getTextBytes(int index) {
+      return text_.getByteString(index);
+    }
+
+    public static final int ALLOW_PLAYBACK_INTERRUPTION_FIELD_NUMBER = 2;
+    private boolean allowPlaybackInterruption_;
+    /**
+     *
+     *
+     * <pre>
+     * Whether the playback of this message can be interrupted by the end
+     * user's speech and the client can then starts the next Dialogflow
+     * request.
+     * </pre>
+     *
+     * <code>bool allow_playback_interruption = 2;</code>
+     *
+     * @return The allowPlaybackInterruption.
+     */
+    @java.lang.Override
+    public boolean getAllowPlaybackInterruption() {
+      return allowPlaybackInterruption_;
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      for (int i = 0; i < text_.size(); i++) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, text_.getRaw(i));
+      }
+      if (allowPlaybackInterruption_ != false) {
+        output.writeBool(2, allowPlaybackInterruption_);
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      {
+        int dataSize = 0;
+        for (int i = 0; i < text_.size(); i++) {
+          dataSize += computeStringSizeNoTag(text_.getRaw(i));
+        }
+        size += dataSize;
+        size += 1 * getTextList().size();
+      }
+      if (allowPlaybackInterruption_ != false) {
+        size +=
+            com.google.protobuf.CodedOutputStream.computeBoolSize(2, allowPlaybackInterruption_);
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text other =
+          (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text) obj;
+
+      if (!getTextList().equals(other.getTextList())) return false;
+      if (getAllowPlaybackInterruption() != other.getAllowPlaybackInterruption()) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      if (getTextCount() > 0) {
+        hash = (37 * hash) + TEXT_FIELD_NUMBER;
+        hash = (53 * hash) + getTextList().hashCode();
+      }
+      hash = (37 * hash) + ALLOW_PLAYBACK_INTERRUPTION_FIELD_NUMBER;
+      hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getAllowPlaybackInterruption());
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text parseDelimitedFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text parseDelimitedFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The text response message.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text)
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.TextOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_Text_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_Text_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text.class,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text.Builder.class);
+      }
+
+      // Construct using com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        text_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+        bitField0_ = (bitField0_ & ~0x00000001);
+        allowPlaybackInterruption_ = false;
+
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_Text_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text
+          getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text build() {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text buildPartial() {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text result =
+            new com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text(this);
+        int from_bitField0_ = bitField0_;
+        if (((bitField0_ & 0x00000001) != 0)) {
+          text_ = text_.getUnmodifiableView();
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.text_ = text_;
+        result.allowPlaybackInterruption_ = allowPlaybackInterruption_;
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text) {
+          return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text other) {
+        if (other
+            == com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text.getDefaultInstance())
+          return this;
+        if (!other.text_.isEmpty()) {
+          if (text_.isEmpty()) {
+            text_ = other.text_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureTextIsMutable();
+            text_.addAll(other.text_);
+          }
+          onChanged();
+        }
+        if (other.getAllowPlaybackInterruption() != false) {
+          setAllowPlaybackInterruption(other.getAllowPlaybackInterruption());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text)
+                  e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private int bitField0_;
+
+      private com.google.protobuf.LazyStringList text_ =
+          com.google.protobuf.LazyStringArrayList.EMPTY;
+
+      private void ensureTextIsMutable() {
+        if (!((bitField0_ & 0x00000001) != 0)) {
+          text_ = new com.google.protobuf.LazyStringArrayList(text_);
+          bitField0_ |= 0x00000001;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. A collection of text responses.
+       * </pre>
+       *
+       * <code>repeated string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return A list containing the text.
+       */
+      public com.google.protobuf.ProtocolStringList getTextList() {
+        return text_.getUnmodifiableView();
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. A collection of text responses.
+       * </pre>
+       *
+       * <code>repeated string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return The count of text.
+       */
+      public int getTextCount() {
+        return text_.size();
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. A collection of text responses.
+       * </pre>
+       *
+       * <code>repeated string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param index The index of the element to return.
+       * @return The text at the given index.
+       */
+      public java.lang.String getText(int index) {
+        return text_.get(index);
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. A collection of text responses.
+       * </pre>
+       *
+       * <code>repeated string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param index The index of the value to return.
+       * @return The bytes of the text at the given index.
+       */
+      public com.google.protobuf.ByteString getTextBytes(int index) {
+        return text_.getByteString(index);
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. A collection of text responses.
+       * </pre>
+       *
+       * <code>repeated string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param index The index to set the value at.
+       * @param value The text to set.
+       * @return This builder for chaining.
+       */
+      public Builder setText(int index, java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTextIsMutable();
+        text_.set(index, value);
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. A collection of text responses.
+       * </pre>
+       *
+       * <code>repeated string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param value The text to add.
+       * @return This builder for chaining.
+       */
+      public Builder addText(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTextIsMutable();
+        text_.add(value);
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. A collection of text responses.
+       * </pre>
+       *
+       * <code>repeated string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param values The text to add.
+       * @return This builder for chaining.
+       */
+      public Builder addAllText(java.lang.Iterable<java.lang.String> values) {
+        ensureTextIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, text_);
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. A collection of text responses.
+       * </pre>
+       *
+       * <code>repeated string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearText() {
+        text_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. A collection of text responses.
+       * </pre>
+       *
+       * <code>repeated string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param value The bytes of the text to add.
+       * @return This builder for chaining.
+       */
+      public Builder addTextBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+        ensureTextIsMutable();
+        text_.add(value);
+        onChanged();
+        return this;
+      }
+
+      private boolean allowPlaybackInterruption_;
+      /**
+       *
+       *
+       * <pre>
+       * Whether the playback of this message can be interrupted by the end
+       * user's speech and the client can then starts the next Dialogflow
+       * request.
+       * </pre>
+       *
+       * <code>bool allow_playback_interruption = 2;</code>
+       *
+       * @return The allowPlaybackInterruption.
+       */
+      @java.lang.Override
+      public boolean getAllowPlaybackInterruption() {
+        return allowPlaybackInterruption_;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Whether the playback of this message can be interrupted by the end
+       * user's speech and the client can then starts the next Dialogflow
+       * request.
+       * </pre>
+       *
+       * <code>bool allow_playback_interruption = 2;</code>
+       *
+       * @param value The allowPlaybackInterruption to set.
+       * @return This builder for chaining.
+       */
+      public Builder setAllowPlaybackInterruption(boolean value) {
+
+        allowPlaybackInterruption_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Whether the playback of this message can be interrupted by the end
+       * user's speech and the client can then starts the next Dialogflow
+       * request.
+       * </pre>
+       *
+       * <code>bool allow_playback_interruption = 2;</code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearAllowPlaybackInterruption() {
+
+        allowPlaybackInterruption_ = false;
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text)
+    private static final com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text();
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<Text> PARSER =
+        new com.google.protobuf.AbstractParser<Text>() {
+          @java.lang.Override
+          public Text parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new Text(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser<Text> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<Text> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  @java.lang.Deprecated
+  public interface HumanAgentHandoffOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * <pre>
+     * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+     * any structure on this.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct metadata = 1;</code>
+     *
+     * @return Whether the metadata field is set.
+     */
+    boolean hasMetadata();
+    /**
+     *
+     *
+     * <pre>
+     * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+     * any structure on this.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct metadata = 1;</code>
+     *
+     * @return The metadata.
+     */
+    com.google.protobuf.Struct getMetadata();
+    /**
+     *
+     *
+     * <pre>
+     * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+     * any structure on this.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct metadata = 1;</code>
+     */
+    com.google.protobuf.StructOrBuilder getMetadataOrBuilder();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Indicates that the conversation should be handed off to a human agent.
+   * Dialogflow only uses this to determine which conversations were handed off
+   * to a human agent for measurement purposes. What else to do with this signal
+   * is up to you and your handoff procedures.
+   * You may set this, for example:
+   * * In the [entry_fulfillment][google.cloud.dialogflow.cx.v3beta1.Page.entry_fulfillment] of a [Page][google.cloud.dialogflow.cx.v3beta1.Page] if
+   *   entering the page indicates something went extremely wrong in the
+   *   conversation.
+   * * In a webhook response when you determine that the customer issue can only
+   *   be handled by a human.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff}
+   */
+  @java.lang.Deprecated
+  public static final class HumanAgentHandoff extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff)
+      HumanAgentHandoffOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use HumanAgentHandoff.newBuilder() to construct.
+    private HumanAgentHandoff(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+
+    private HumanAgentHandoff() {}
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new HumanAgentHandoff();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private HumanAgentHandoff(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                com.google.protobuf.Struct.Builder subBuilder = null;
+                if (metadata_ != null) {
+                  subBuilder = metadata_.toBuilder();
+                }
+                metadata_ =
+                    input.readMessage(com.google.protobuf.Struct.parser(), extensionRegistry);
+                if (subBuilder != null) {
+                  subBuilder.mergeFrom(metadata_);
+                  metadata_ = subBuilder.buildPartial();
+                }
+
+                break;
+              }
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_HumanAgentHandoff_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_HumanAgentHandoff_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff.Builder
+                  .class);
+    }
+
+    public static final int METADATA_FIELD_NUMBER = 1;
+    private com.google.protobuf.Struct metadata_;
+    /**
+     *
+     *
+     * <pre>
+     * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+     * any structure on this.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct metadata = 1;</code>
+     *
+     * @return Whether the metadata field is set.
+     */
+    @java.lang.Override
+    public boolean hasMetadata() {
+      return metadata_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+     * any structure on this.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct metadata = 1;</code>
+     *
+     * @return The metadata.
+     */
+    @java.lang.Override
+    public com.google.protobuf.Struct getMetadata() {
+      return metadata_ == null ? com.google.protobuf.Struct.getDefaultInstance() : metadata_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+     * any structure on this.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct metadata = 1;</code>
+     */
+    @java.lang.Override
+    public com.google.protobuf.StructOrBuilder getMetadataOrBuilder() {
+      return getMetadata();
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (metadata_ != null) {
+        output.writeMessage(1, getMetadata());
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (metadata_ != null) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getMetadata());
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj
+          instanceof com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff other =
+          (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff) obj;
+
+      if (hasMetadata() != other.hasMetadata()) return false;
+      if (hasMetadata()) {
+        if (!getMetadata().equals(other.getMetadata())) return false;
+      }
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      if (hasMetadata()) {
+        hash = (37 * hash) + METADATA_FIELD_NUMBER;
+        hash = (53 * hash) + getMetadata().hashCode();
+      }
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+        parseFrom(java.nio.ByteBuffer data)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+        parseFrom(
+            java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+        parseFrom(com.google.protobuf.ByteString data)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+        parseFrom(
+            com.google.protobuf.ByteString data,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+        parseFrom(byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+        parseFrom(byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+        parseFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+        parseFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+        parseFrom(com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+        parseFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates that the conversation should be handed off to a human agent.
+     * Dialogflow only uses this to determine which conversations were handed off
+     * to a human agent for measurement purposes. What else to do with this signal
+     * is up to you and your handoff procedures.
+     * You may set this, for example:
+     * * In the [entry_fulfillment][google.cloud.dialogflow.cx.v3beta1.Page.entry_fulfillment] of a [Page][google.cloud.dialogflow.cx.v3beta1.Page] if
+     *   entering the page indicates something went extremely wrong in the
+     *   conversation.
+     * * In a webhook response when you determine that the customer issue can only
+     *   be handled by a human.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff)
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoffOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_HumanAgentHandoff_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_HumanAgentHandoff_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff.class,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff.Builder
+                    .class);
+      }
+
+      // Construct using
+      // com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        if (metadataBuilder_ == null) {
+          metadata_ = null;
+        } else {
+          metadata_ = null;
+          metadataBuilder_ = null;
+        }
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_HumanAgentHandoff_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+          getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+            .getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff build() {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff result =
+            buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+          buildPartial() {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff result =
+            new com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff(this);
+        if (metadataBuilder_ == null) {
+          result.metadata_ = metadata_;
+        } else {
+          result.metadata_ = metadataBuilder_.build();
+        }
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other
+            instanceof com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff) {
+          return mergeFrom(
+              (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff other) {
+        if (other
+            == com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+                .getDefaultInstance()) return this;
+        if (other.hasMetadata()) {
+          mergeMetadata(other.getMetadata());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff parsedMessage =
+            null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff)
+                  e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private com.google.protobuf.Struct metadata_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.protobuf.Struct,
+              com.google.protobuf.Struct.Builder,
+              com.google.protobuf.StructOrBuilder>
+          metadataBuilder_;
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+       * any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       *
+       * @return Whether the metadata field is set.
+       */
+      public boolean hasMetadata() {
+        return metadataBuilder_ != null || metadata_ != null;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+       * any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       *
+       * @return The metadata.
+       */
+      public com.google.protobuf.Struct getMetadata() {
+        if (metadataBuilder_ == null) {
+          return metadata_ == null ? com.google.protobuf.Struct.getDefaultInstance() : metadata_;
+        } else {
+          return metadataBuilder_.getMessage();
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+       * any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       */
+      public Builder setMetadata(com.google.protobuf.Struct value) {
+        if (metadataBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          metadata_ = value;
+          onChanged();
+        } else {
+          metadataBuilder_.setMessage(value);
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+       * any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       */
+      public Builder setMetadata(com.google.protobuf.Struct.Builder builderForValue) {
+        if (metadataBuilder_ == null) {
+          metadata_ = builderForValue.build();
+          onChanged();
+        } else {
+          metadataBuilder_.setMessage(builderForValue.build());
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+       * any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       */
+      public Builder mergeMetadata(com.google.protobuf.Struct value) {
+        if (metadataBuilder_ == null) {
+          if (metadata_ != null) {
+            metadata_ =
+                com.google.protobuf.Struct.newBuilder(metadata_).mergeFrom(value).buildPartial();
+          } else {
+            metadata_ = value;
+          }
+          onChanged();
+        } else {
+          metadataBuilder_.mergeFrom(value);
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+       * any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       */
+      public Builder clearMetadata() {
+        if (metadataBuilder_ == null) {
+          metadata_ = null;
+          onChanged();
+        } else {
+          metadata_ = null;
+          metadataBuilder_ = null;
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+       * any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       */
+      public com.google.protobuf.Struct.Builder getMetadataBuilder() {
+
+        onChanged();
+        return getMetadataFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+       * any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       */
+      public com.google.protobuf.StructOrBuilder getMetadataOrBuilder() {
+        if (metadataBuilder_ != null) {
+          return metadataBuilder_.getMessageOrBuilder();
+        } else {
+          return metadata_ == null ? com.google.protobuf.Struct.getDefaultInstance() : metadata_;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+       * any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.protobuf.Struct,
+              com.google.protobuf.Struct.Builder,
+              com.google.protobuf.StructOrBuilder>
+          getMetadataFieldBuilder() {
+        if (metadataBuilder_ == null) {
+          metadataBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.protobuf.Struct,
+                  com.google.protobuf.Struct.Builder,
+                  com.google.protobuf.StructOrBuilder>(
+                  getMetadata(), getParentForChildren(), isClean());
+          metadata_ = null;
+        }
+        return metadataBuilder_;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff)
+    private static final com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE =
+          new com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff();
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<HumanAgentHandoff> PARSER =
+        new com.google.protobuf.AbstractParser<HumanAgentHandoff>() {
+          @java.lang.Override
+          public HumanAgentHandoff parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new HumanAgentHandoff(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser<HumanAgentHandoff> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<HumanAgentHandoff> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public interface LiveAgentHandoffOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * <pre>
+     * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+     * any structure on this.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct metadata = 1;</code>
+     *
+     * @return Whether the metadata field is set.
+     */
+    boolean hasMetadata();
+    /**
+     *
+     *
+     * <pre>
+     * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+     * any structure on this.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct metadata = 1;</code>
+     *
+     * @return The metadata.
+     */
+    com.google.protobuf.Struct getMetadata();
+    /**
+     *
+     *
+     * <pre>
+     * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+     * any structure on this.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct metadata = 1;</code>
+     */
+    com.google.protobuf.StructOrBuilder getMetadataOrBuilder();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Indicates that the conversation should be handed off to a live agent.
+   * Dialogflow only uses this to determine which conversations were handed off
+   * to a human agent for measurement purposes. What else to do with this signal
+   * is up to you and your handoff procedures.
+   * You may set this, for example:
+   * * In the [entry_fulfillment][google.cloud.dialogflow.cx.v3beta1.Page.entry_fulfillment] of a [Page][google.cloud.dialogflow.cx.v3beta1.Page] if
+   *   entering the page indicates something went extremely wrong in the
+   *   conversation.
+   * * In a webhook response when you determine that the customer issue can only
+   *   be handled by a human.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff}
+   */
+  public static final class LiveAgentHandoff extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff)
+      LiveAgentHandoffOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use LiveAgentHandoff.newBuilder() to construct.
+    private LiveAgentHandoff(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+
+    private LiveAgentHandoff() {}
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new LiveAgentHandoff();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private LiveAgentHandoff(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
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+      try {
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+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
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+              break;
+            case 10:
+              {
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+                if (metadata_ != null) {
+                  subBuilder = metadata_.toBuilder();
+                }
+                metadata_ =
+                    input.readMessage(com.google.protobuf.Struct.parser(), extensionRegistry);
+                if (subBuilder != null) {
+                  subBuilder.mergeFrom(metadata_);
+                  metadata_ = subBuilder.buildPartial();
+                }
+
+                break;
+              }
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_LiveAgentHandoff_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_LiveAgentHandoff_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
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+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff.Builder
+                  .class);
+    }
+
+    public static final int METADATA_FIELD_NUMBER = 1;
+    private com.google.protobuf.Struct metadata_;
+    /**
+     *
+     *
+     * <pre>
+     * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+     * any structure on this.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct metadata = 1;</code>
+     *
+     * @return Whether the metadata field is set.
+     */
+    @java.lang.Override
+    public boolean hasMetadata() {
+      return metadata_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+     * any structure on this.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct metadata = 1;</code>
+     *
+     * @return The metadata.
+     */
+    @java.lang.Override
+    public com.google.protobuf.Struct getMetadata() {
+      return metadata_ == null ? com.google.protobuf.Struct.getDefaultInstance() : metadata_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+     * any structure on this.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct metadata = 1;</code>
+     */
+    @java.lang.Override
+    public com.google.protobuf.StructOrBuilder getMetadataOrBuilder() {
+      return getMetadata();
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (metadata_ != null) {
+        output.writeMessage(1, getMetadata());
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (metadata_ != null) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getMetadata());
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj
+          instanceof com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff other =
+          (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff) obj;
+
+      if (hasMetadata() != other.hasMetadata()) return false;
+      if (hasMetadata()) {
+        if (!getMetadata().equals(other.getMetadata())) return false;
+      }
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      if (hasMetadata()) {
+        hash = (37 * hash) + METADATA_FIELD_NUMBER;
+        hash = (53 * hash) + getMetadata().hashCode();
+      }
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff parseFrom(
+        byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates that the conversation should be handed off to a live agent.
+     * Dialogflow only uses this to determine which conversations were handed off
+     * to a human agent for measurement purposes. What else to do with this signal
+     * is up to you and your handoff procedures.
+     * You may set this, for example:
+     * * In the [entry_fulfillment][google.cloud.dialogflow.cx.v3beta1.Page.entry_fulfillment] of a [Page][google.cloud.dialogflow.cx.v3beta1.Page] if
+     *   entering the page indicates something went extremely wrong in the
+     *   conversation.
+     * * In a webhook response when you determine that the customer issue can only
+     *   be handled by a human.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff)
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoffOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_LiveAgentHandoff_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_LiveAgentHandoff_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff.class,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff.Builder
+                    .class);
+      }
+
+      // Construct using
+      // com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        if (metadataBuilder_ == null) {
+          metadata_ = null;
+        } else {
+          metadata_ = null;
+          metadataBuilder_ = null;
+        }
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_LiveAgentHandoff_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff
+          getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff
+            .getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff build() {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff result =
+            buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff
+          buildPartial() {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff result =
+            new com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff(this);
+        if (metadataBuilder_ == null) {
+          result.metadata_ = metadata_;
+        } else {
+          result.metadata_ = metadataBuilder_.build();
+        }
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other
+            instanceof com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff) {
+          return mergeFrom(
+              (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff other) {
+        if (other
+            == com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff
+                .getDefaultInstance()) return this;
+        if (other.hasMetadata()) {
+          mergeMetadata(other.getMetadata());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff parsedMessage =
+            null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff)
+                  e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private com.google.protobuf.Struct metadata_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.protobuf.Struct,
+              com.google.protobuf.Struct.Builder,
+              com.google.protobuf.StructOrBuilder>
+          metadataBuilder_;
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+       * any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       *
+       * @return Whether the metadata field is set.
+       */
+      public boolean hasMetadata() {
+        return metadataBuilder_ != null || metadata_ != null;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+       * any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       *
+       * @return The metadata.
+       */
+      public com.google.protobuf.Struct getMetadata() {
+        if (metadataBuilder_ == null) {
+          return metadata_ == null ? com.google.protobuf.Struct.getDefaultInstance() : metadata_;
+        } else {
+          return metadataBuilder_.getMessage();
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+       * any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       */
+      public Builder setMetadata(com.google.protobuf.Struct value) {
+        if (metadataBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          metadata_ = value;
+          onChanged();
+        } else {
+          metadataBuilder_.setMessage(value);
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+       * any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       */
+      public Builder setMetadata(com.google.protobuf.Struct.Builder builderForValue) {
+        if (metadataBuilder_ == null) {
+          metadata_ = builderForValue.build();
+          onChanged();
+        } else {
+          metadataBuilder_.setMessage(builderForValue.build());
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+       * any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       */
+      public Builder mergeMetadata(com.google.protobuf.Struct value) {
+        if (metadataBuilder_ == null) {
+          if (metadata_ != null) {
+            metadata_ =
+                com.google.protobuf.Struct.newBuilder(metadata_).mergeFrom(value).buildPartial();
+          } else {
+            metadata_ = value;
+          }
+          onChanged();
+        } else {
+          metadataBuilder_.mergeFrom(value);
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+       * any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       */
+      public Builder clearMetadata() {
+        if (metadataBuilder_ == null) {
+          metadata_ = null;
+          onChanged();
+        } else {
+          metadata_ = null;
+          metadataBuilder_ = null;
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+       * any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       */
+      public com.google.protobuf.Struct.Builder getMetadataBuilder() {
+
+        onChanged();
+        return getMetadataFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+       * any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       */
+      public com.google.protobuf.StructOrBuilder getMetadataOrBuilder() {
+        if (metadataBuilder_ != null) {
+          return metadataBuilder_.getMessageOrBuilder();
+        } else {
+          return metadata_ == null ? com.google.protobuf.Struct.getDefaultInstance() : metadata_;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata for your handoff procedure. Dialogflow doesn't impose
+       * any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.protobuf.Struct,
+              com.google.protobuf.Struct.Builder,
+              com.google.protobuf.StructOrBuilder>
+          getMetadataFieldBuilder() {
+        if (metadataBuilder_ == null) {
+          metadataBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.protobuf.Struct,
+                  com.google.protobuf.Struct.Builder,
+                  com.google.protobuf.StructOrBuilder>(
+                  getMetadata(), getParentForChildren(), isClean());
+          metadata_ = null;
+        }
+        return metadataBuilder_;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff)
+    private static final com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE =
+          new com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff();
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<LiveAgentHandoff> PARSER =
+        new com.google.protobuf.AbstractParser<LiveAgentHandoff>() {
+          @java.lang.Override
+          public LiveAgentHandoff parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new LiveAgentHandoff(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser<LiveAgentHandoff> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<LiveAgentHandoff> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public interface ConversationSuccessOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * <pre>
+     * Custom metadata. Dialogflow doesn't impose any structure on this.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct metadata = 1;</code>
+     *
+     * @return Whether the metadata field is set.
+     */
+    boolean hasMetadata();
+    /**
+     *
+     *
+     * <pre>
+     * Custom metadata. Dialogflow doesn't impose any structure on this.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct metadata = 1;</code>
+     *
+     * @return The metadata.
+     */
+    com.google.protobuf.Struct getMetadata();
+    /**
+     *
+     *
+     * <pre>
+     * Custom metadata. Dialogflow doesn't impose any structure on this.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct metadata = 1;</code>
+     */
+    com.google.protobuf.StructOrBuilder getMetadataOrBuilder();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Indicates that the conversation succeeded, i.e., the bot handled the issue
+   * that the customer talked to it about.
+   * Dialogflow only uses this to determine which conversations should be
+   * counted as successful and doesn't process the metadata in this message in
+   * any way. Note that Dialogflow also considers conversations that get to the
+   * conversation end page as successful even if they don't return
+   * [ConversationSuccess][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess].
+   * You may set this, for example:
+   * * In the [entry_fulfillment][google.cloud.dialogflow.cx.v3beta1.Page.entry_fulfillment] of a [Page][google.cloud.dialogflow.cx.v3beta1.Page] if
+   *   entering the page indicates that the conversation succeeded.
+   * * In a webhook response when you determine that you handled the customer
+   *   issue.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess}
+   */
+  public static final class ConversationSuccess extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess)
+      ConversationSuccessOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use ConversationSuccess.newBuilder() to construct.
+    private ConversationSuccess(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+
+    private ConversationSuccess() {}
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new ConversationSuccess();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private ConversationSuccess(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                com.google.protobuf.Struct.Builder subBuilder = null;
+                if (metadata_ != null) {
+                  subBuilder = metadata_.toBuilder();
+                }
+                metadata_ =
+                    input.readMessage(com.google.protobuf.Struct.parser(), extensionRegistry);
+                if (subBuilder != null) {
+                  subBuilder.mergeFrom(metadata_);
+                  metadata_ = subBuilder.buildPartial();
+                }
+
+                break;
+              }
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_ConversationSuccess_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_ConversationSuccess_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess.Builder
+                  .class);
+    }
+
+    public static final int METADATA_FIELD_NUMBER = 1;
+    private com.google.protobuf.Struct metadata_;
+    /**
+     *
+     *
+     * <pre>
+     * Custom metadata. Dialogflow doesn't impose any structure on this.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct metadata = 1;</code>
+     *
+     * @return Whether the metadata field is set.
+     */
+    @java.lang.Override
+    public boolean hasMetadata() {
+      return metadata_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Custom metadata. Dialogflow doesn't impose any structure on this.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct metadata = 1;</code>
+     *
+     * @return The metadata.
+     */
+    @java.lang.Override
+    public com.google.protobuf.Struct getMetadata() {
+      return metadata_ == null ? com.google.protobuf.Struct.getDefaultInstance() : metadata_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Custom metadata. Dialogflow doesn't impose any structure on this.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct metadata = 1;</code>
+     */
+    @java.lang.Override
+    public com.google.protobuf.StructOrBuilder getMetadataOrBuilder() {
+      return getMetadata();
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (metadata_ != null) {
+        output.writeMessage(1, getMetadata());
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (metadata_ != null) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getMetadata());
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj
+          instanceof com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess other =
+          (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess) obj;
+
+      if (hasMetadata() != other.hasMetadata()) return false;
+      if (hasMetadata()) {
+        if (!getMetadata().equals(other.getMetadata())) return false;
+      }
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      if (hasMetadata()) {
+        hash = (37 * hash) + METADATA_FIELD_NUMBER;
+        hash = (53 * hash) + getMetadata().hashCode();
+      }
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+        parseFrom(java.nio.ByteBuffer data)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+        parseFrom(
+            java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+        parseFrom(com.google.protobuf.ByteString data)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+        parseFrom(
+            com.google.protobuf.ByteString data,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+        parseFrom(byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+        parseFrom(byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+        parseFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+        parseFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+        parseFrom(com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+        parseFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates that the conversation succeeded, i.e., the bot handled the issue
+     * that the customer talked to it about.
+     * Dialogflow only uses this to determine which conversations should be
+     * counted as successful and doesn't process the metadata in this message in
+     * any way. Note that Dialogflow also considers conversations that get to the
+     * conversation end page as successful even if they don't return
+     * [ConversationSuccess][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess].
+     * You may set this, for example:
+     * * In the [entry_fulfillment][google.cloud.dialogflow.cx.v3beta1.Page.entry_fulfillment] of a [Page][google.cloud.dialogflow.cx.v3beta1.Page] if
+     *   entering the page indicates that the conversation succeeded.
+     * * In a webhook response when you determine that you handled the customer
+     *   issue.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess)
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccessOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_ConversationSuccess_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_ConversationSuccess_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess.class,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess.Builder
+                    .class);
+      }
+
+      // Construct using
+      // com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        if (metadataBuilder_ == null) {
+          metadata_ = null;
+        } else {
+          metadata_ = null;
+          metadataBuilder_ = null;
+        }
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_ConversationSuccess_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+          getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+            .getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess build() {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess result =
+            buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+          buildPartial() {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess result =
+            new com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess(this);
+        if (metadataBuilder_ == null) {
+          result.metadata_ = metadata_;
+        } else {
+          result.metadata_ = metadataBuilder_.build();
+        }
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other
+            instanceof com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess) {
+          return mergeFrom(
+              (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess other) {
+        if (other
+            == com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+                .getDefaultInstance()) return this;
+        if (other.hasMetadata()) {
+          mergeMetadata(other.getMetadata());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess parsedMessage =
+            null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess)
+                  e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private com.google.protobuf.Struct metadata_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.protobuf.Struct,
+              com.google.protobuf.Struct.Builder,
+              com.google.protobuf.StructOrBuilder>
+          metadataBuilder_;
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata. Dialogflow doesn't impose any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       *
+       * @return Whether the metadata field is set.
+       */
+      public boolean hasMetadata() {
+        return metadataBuilder_ != null || metadata_ != null;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata. Dialogflow doesn't impose any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       *
+       * @return The metadata.
+       */
+      public com.google.protobuf.Struct getMetadata() {
+        if (metadataBuilder_ == null) {
+          return metadata_ == null ? com.google.protobuf.Struct.getDefaultInstance() : metadata_;
+        } else {
+          return metadataBuilder_.getMessage();
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata. Dialogflow doesn't impose any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       */
+      public Builder setMetadata(com.google.protobuf.Struct value) {
+        if (metadataBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          metadata_ = value;
+          onChanged();
+        } else {
+          metadataBuilder_.setMessage(value);
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata. Dialogflow doesn't impose any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       */
+      public Builder setMetadata(com.google.protobuf.Struct.Builder builderForValue) {
+        if (metadataBuilder_ == null) {
+          metadata_ = builderForValue.build();
+          onChanged();
+        } else {
+          metadataBuilder_.setMessage(builderForValue.build());
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata. Dialogflow doesn't impose any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       */
+      public Builder mergeMetadata(com.google.protobuf.Struct value) {
+        if (metadataBuilder_ == null) {
+          if (metadata_ != null) {
+            metadata_ =
+                com.google.protobuf.Struct.newBuilder(metadata_).mergeFrom(value).buildPartial();
+          } else {
+            metadata_ = value;
+          }
+          onChanged();
+        } else {
+          metadataBuilder_.mergeFrom(value);
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata. Dialogflow doesn't impose any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       */
+      public Builder clearMetadata() {
+        if (metadataBuilder_ == null) {
+          metadata_ = null;
+          onChanged();
+        } else {
+          metadata_ = null;
+          metadataBuilder_ = null;
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata. Dialogflow doesn't impose any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       */
+      public com.google.protobuf.Struct.Builder getMetadataBuilder() {
+
+        onChanged();
+        return getMetadataFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata. Dialogflow doesn't impose any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       */
+      public com.google.protobuf.StructOrBuilder getMetadataOrBuilder() {
+        if (metadataBuilder_ != null) {
+          return metadataBuilder_.getMessageOrBuilder();
+        } else {
+          return metadata_ == null ? com.google.protobuf.Struct.getDefaultInstance() : metadata_;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Custom metadata. Dialogflow doesn't impose any structure on this.
+       * </pre>
+       *
+       * <code>.google.protobuf.Struct metadata = 1;</code>
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.protobuf.Struct,
+              com.google.protobuf.Struct.Builder,
+              com.google.protobuf.StructOrBuilder>
+          getMetadataFieldBuilder() {
+        if (metadataBuilder_ == null) {
+          metadataBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.protobuf.Struct,
+                  com.google.protobuf.Struct.Builder,
+                  com.google.protobuf.StructOrBuilder>(
+                  getMetadata(), getParentForChildren(), isClean());
+          metadata_ = null;
+        }
+        return metadataBuilder_;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess)
+    private static final com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE =
+          new com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess();
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<ConversationSuccess> PARSER =
+        new com.google.protobuf.AbstractParser<ConversationSuccess>() {
+          @java.lang.Override
+          public ConversationSuccess parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new ConversationSuccess(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser<ConversationSuccess> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<ConversationSuccess> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public interface PlayAudioOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * <pre>
+     * Required. URI of the audio clip. Dialogflow does not impose any validation on this
+     * value. It is specific to the client that reads it.
+     * </pre>
+     *
+     * <code>string audio_uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The audioUri.
+     */
+    java.lang.String getAudioUri();
+    /**
+     *
+     *
+     * <pre>
+     * Required. URI of the audio clip. Dialogflow does not impose any validation on this
+     * value. It is specific to the client that reads it.
+     * </pre>
+     *
+     * <code>string audio_uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for audioUri.
+     */
+    com.google.protobuf.ByteString getAudioUriBytes();
+
+    /**
+     *
+     *
+     * <pre>
+     * Whether the playback of this message can be interrupted by the end
+     * user's speech and the client can then starts the next Dialogflow
+     * request.
+     * </pre>
+     *
+     * <code>bool allow_playback_interruption = 2;</code>
+     *
+     * @return The allowPlaybackInterruption.
+     */
+    boolean getAllowPlaybackInterruption();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Specifies an audio clip to be played by the client as part of the response.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio}
+   */
+  public static final class PlayAudio extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio)
+      PlayAudioOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use PlayAudio.newBuilder() to construct.
+    private PlayAudio(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+
+    private PlayAudio() {
+      audioUri_ = "";
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new PlayAudio();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private PlayAudio(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+
+                audioUri_ = s;
+                break;
+              }
+            case 16:
+              {
+                allowPlaybackInterruption_ = input.readBool();
+                break;
+              }
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_PlayAudio_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_PlayAudio_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio.Builder.class);
+    }
+
+    public static final int AUDIO_URI_FIELD_NUMBER = 1;
+    private volatile java.lang.Object audioUri_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. URI of the audio clip. Dialogflow does not impose any validation on this
+     * value. It is specific to the client that reads it.
+     * </pre>
+     *
+     * <code>string audio_uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The audioUri.
+     */
+    @java.lang.Override
+    public java.lang.String getAudioUri() {
+      java.lang.Object ref = audioUri_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        audioUri_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. URI of the audio clip. Dialogflow does not impose any validation on this
+     * value. It is specific to the client that reads it.
+     * </pre>
+     *
+     * <code>string audio_uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for audioUri.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getAudioUriBytes() {
+      java.lang.Object ref = audioUri_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        audioUri_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    public static final int ALLOW_PLAYBACK_INTERRUPTION_FIELD_NUMBER = 2;
+    private boolean allowPlaybackInterruption_;
+    /**
+     *
+     *
+     * <pre>
+     * Whether the playback of this message can be interrupted by the end
+     * user's speech and the client can then starts the next Dialogflow
+     * request.
+     * </pre>
+     *
+     * <code>bool allow_playback_interruption = 2;</code>
+     *
+     * @return The allowPlaybackInterruption.
+     */
+    @java.lang.Override
+    public boolean getAllowPlaybackInterruption() {
+      return allowPlaybackInterruption_;
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (!getAudioUriBytes().isEmpty()) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, audioUri_);
+      }
+      if (allowPlaybackInterruption_ != false) {
+        output.writeBool(2, allowPlaybackInterruption_);
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (!getAudioUriBytes().isEmpty()) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, audioUri_);
+      }
+      if (allowPlaybackInterruption_ != false) {
+        size +=
+            com.google.protobuf.CodedOutputStream.computeBoolSize(2, allowPlaybackInterruption_);
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio other =
+          (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio) obj;
+
+      if (!getAudioUri().equals(other.getAudioUri())) return false;
+      if (getAllowPlaybackInterruption() != other.getAllowPlaybackInterruption()) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + AUDIO_URI_FIELD_NUMBER;
+      hash = (53 * hash) + getAudioUri().hashCode();
+      hash = (37 * hash) + ALLOW_PLAYBACK_INTERRUPTION_FIELD_NUMBER;
+      hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getAllowPlaybackInterruption());
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio parseFrom(
+        byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Specifies an audio clip to be played by the client as part of the response.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio)
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudioOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_PlayAudio_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_PlayAudio_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio.class,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio.Builder.class);
+      }
+
+      // Construct using
+      // com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        audioUri_ = "";
+
+        allowPlaybackInterruption_ = false;
+
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_PlayAudio_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio
+          getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio
+            .getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio build() {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio buildPartial() {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio result =
+            new com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio(this);
+        result.audioUri_ = audioUri_;
+        result.allowPlaybackInterruption_ = allowPlaybackInterruption_;
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio) {
+          return mergeFrom(
+              (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio other) {
+        if (other
+            == com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio
+                .getDefaultInstance()) return this;
+        if (!other.getAudioUri().isEmpty()) {
+          audioUri_ = other.audioUri_;
+          onChanged();
+        }
+        if (other.getAllowPlaybackInterruption() != false) {
+          setAllowPlaybackInterruption(other.getAllowPlaybackInterruption());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio)
+                  e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private java.lang.Object audioUri_ = "";
+      /**
+       *
+       *
+       * <pre>
+       * Required. URI of the audio clip. Dialogflow does not impose any validation on this
+       * value. It is specific to the client that reads it.
+       * </pre>
+       *
+       * <code>string audio_uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return The audioUri.
+       */
+      public java.lang.String getAudioUri() {
+        java.lang.Object ref = audioUri_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          audioUri_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. URI of the audio clip. Dialogflow does not impose any validation on this
+       * value. It is specific to the client that reads it.
+       * </pre>
+       *
+       * <code>string audio_uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return The bytes for audioUri.
+       */
+      public com.google.protobuf.ByteString getAudioUriBytes() {
+        java.lang.Object ref = audioUri_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          audioUri_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. URI of the audio clip. Dialogflow does not impose any validation on this
+       * value. It is specific to the client that reads it.
+       * </pre>
+       *
+       * <code>string audio_uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param value The audioUri to set.
+       * @return This builder for chaining.
+       */
+      public Builder setAudioUri(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+
+        audioUri_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. URI of the audio clip. Dialogflow does not impose any validation on this
+       * value. It is specific to the client that reads it.
+       * </pre>
+       *
+       * <code>string audio_uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearAudioUri() {
+
+        audioUri_ = getDefaultInstance().getAudioUri();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. URI of the audio clip. Dialogflow does not impose any validation on this
+       * value. It is specific to the client that reads it.
+       * </pre>
+       *
+       * <code>string audio_uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param value The bytes for audioUri to set.
+       * @return This builder for chaining.
+       */
+      public Builder setAudioUriBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+
+        audioUri_ = value;
+        onChanged();
+        return this;
+      }
+
+      private boolean allowPlaybackInterruption_;
+      /**
+       *
+       *
+       * <pre>
+       * Whether the playback of this message can be interrupted by the end
+       * user's speech and the client can then starts the next Dialogflow
+       * request.
+       * </pre>
+       *
+       * <code>bool allow_playback_interruption = 2;</code>
+       *
+       * @return The allowPlaybackInterruption.
+       */
+      @java.lang.Override
+      public boolean getAllowPlaybackInterruption() {
+        return allowPlaybackInterruption_;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Whether the playback of this message can be interrupted by the end
+       * user's speech and the client can then starts the next Dialogflow
+       * request.
+       * </pre>
+       *
+       * <code>bool allow_playback_interruption = 2;</code>
+       *
+       * @param value The allowPlaybackInterruption to set.
+       * @return This builder for chaining.
+       */
+      public Builder setAllowPlaybackInterruption(boolean value) {
+
+        allowPlaybackInterruption_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Whether the playback of this message can be interrupted by the end
+       * user's speech and the client can then starts the next Dialogflow
+       * request.
+       * </pre>
+       *
+       * <code>bool allow_playback_interruption = 2;</code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearAllowPlaybackInterruption() {
+
+        allowPlaybackInterruption_ = false;
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio)
+    private static final com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio();
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<PlayAudio> PARSER =
+        new com.google.protobuf.AbstractParser<PlayAudio>() {
+          @java.lang.Override
+          public PlayAudio parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new PlayAudio(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser<PlayAudio> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<PlayAudio> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public interface OutputAudioTextOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * <pre>
+     * The raw text to be synthesized.
+     * </pre>
+     *
+     * <code>string text = 1;</code>
+     *
+     * @return The text.
+     */
+    java.lang.String getText();
+    /**
+     *
+     *
+     * <pre>
+     * The raw text to be synthesized.
+     * </pre>
+     *
+     * <code>string text = 1;</code>
+     *
+     * @return The bytes for text.
+     */
+    com.google.protobuf.ByteString getTextBytes();
+
+    /**
+     *
+     *
+     * <pre>
+     * The SSML text to be synthesized. For more information, see
+     * [SSML](/speech/text-to-speech/docs/ssml).
+     * </pre>
+     *
+     * <code>string ssml = 2;</code>
+     *
+     * @return The ssml.
+     */
+    java.lang.String getSsml();
+    /**
+     *
+     *
+     * <pre>
+     * The SSML text to be synthesized. For more information, see
+     * [SSML](/speech/text-to-speech/docs/ssml).
+     * </pre>
+     *
+     * <code>string ssml = 2;</code>
+     *
+     * @return The bytes for ssml.
+     */
+    com.google.protobuf.ByteString getSsmlBytes();
+
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText.SourceCase
+        getSourceCase();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A text or ssml response that is preferentially used for TTS output audio
+   * synthesis, as described in the comment on the ResponseMessage message.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText}
+   */
+  public static final class OutputAudioText extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText)
+      OutputAudioTextOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use OutputAudioText.newBuilder() to construct.
+    private OutputAudioText(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+
+    private OutputAudioText() {}
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new OutputAudioText();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private OutputAudioText(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                sourceCase_ = 1;
+                source_ = s;
+                break;
+              }
+            case 18:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                sourceCase_ = 2;
+                source_ = s;
+                break;
+              }
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_OutputAudioText_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_OutputAudioText_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText.Builder.class);
+    }
+
+    private int sourceCase_ = 0;
+    private java.lang.Object source_;
+
+    public enum SourceCase
+        implements
+            com.google.protobuf.Internal.EnumLite,
+            com.google.protobuf.AbstractMessage.InternalOneOfEnum {
+      TEXT(1),
+      SSML(2),
+      SOURCE_NOT_SET(0);
+      private final int value;
+
+      private SourceCase(int value) {
+        this.value = value;
+      }
+      /**
+       * @param value The number of the enum to look for.
+       * @return The enum associated with the given number.
+       * @deprecated Use {@link #forNumber(int)} instead.
+       */
+      @java.lang.Deprecated
+      public static SourceCase valueOf(int value) {
+        return forNumber(value);
+      }
+
+      public static SourceCase forNumber(int value) {
+        switch (value) {
+          case 1:
+            return TEXT;
+          case 2:
+            return SSML;
+          case 0:
+            return SOURCE_NOT_SET;
+          default:
+            return null;
+        }
+      }
+
+      public int getNumber() {
+        return this.value;
+      }
+    };
+
+    public SourceCase getSourceCase() {
+      return SourceCase.forNumber(sourceCase_);
+    }
+
+    public static final int TEXT_FIELD_NUMBER = 1;
+    /**
+     *
+     *
+     * <pre>
+     * The raw text to be synthesized.
+     * </pre>
+     *
+     * <code>string text = 1;</code>
+     *
+     * @return The text.
+     */
+    public java.lang.String getText() {
+      java.lang.Object ref = "";
+      if (sourceCase_ == 1) {
+        ref = source_;
+      }
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (sourceCase_ == 1) {
+          source_ = s;
+        }
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The raw text to be synthesized.
+     * </pre>
+     *
+     * <code>string text = 1;</code>
+     *
+     * @return The bytes for text.
+     */
+    public com.google.protobuf.ByteString getTextBytes() {
+      java.lang.Object ref = "";
+      if (sourceCase_ == 1) {
+        ref = source_;
+      }
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        if (sourceCase_ == 1) {
+          source_ = b;
+        }
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    public static final int SSML_FIELD_NUMBER = 2;
+    /**
+     *
+     *
+     * <pre>
+     * The SSML text to be synthesized. For more information, see
+     * [SSML](/speech/text-to-speech/docs/ssml).
+     * </pre>
+     *
+     * <code>string ssml = 2;</code>
+     *
+     * @return The ssml.
+     */
+    public java.lang.String getSsml() {
+      java.lang.Object ref = "";
+      if (sourceCase_ == 2) {
+        ref = source_;
+      }
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (sourceCase_ == 2) {
+          source_ = s;
+        }
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The SSML text to be synthesized. For more information, see
+     * [SSML](/speech/text-to-speech/docs/ssml).
+     * </pre>
+     *
+     * <code>string ssml = 2;</code>
+     *
+     * @return The bytes for ssml.
+     */
+    public com.google.protobuf.ByteString getSsmlBytes() {
+      java.lang.Object ref = "";
+      if (sourceCase_ == 2) {
+        ref = source_;
+      }
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        if (sourceCase_ == 2) {
+          source_ = b;
+        }
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (sourceCase_ == 1) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, source_);
+      }
+      if (sourceCase_ == 2) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 2, source_);
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (sourceCase_ == 1) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, source_);
+      }
+      if (sourceCase_ == 2) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, source_);
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj
+          instanceof com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText other =
+          (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText) obj;
+
+      if (!getSourceCase().equals(other.getSourceCase())) return false;
+      switch (sourceCase_) {
+        case 1:
+          if (!getText().equals(other.getText())) return false;
+          break;
+        case 2:
+          if (!getSsml().equals(other.getSsml())) return false;
+          break;
+        case 0:
+        default:
+      }
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      switch (sourceCase_) {
+        case 1:
+          hash = (37 * hash) + TEXT_FIELD_NUMBER;
+          hash = (53 * hash) + getText().hashCode();
+          break;
+        case 2:
+          hash = (37 * hash) + SSML_FIELD_NUMBER;
+          hash = (53 * hash) + getSsml().hashCode();
+          break;
+        case 0:
+        default:
+      }
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText parseFrom(
+        byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A text or ssml response that is preferentially used for TTS output audio
+     * synthesis, as described in the comment on the ResponseMessage message.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText)
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioTextOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_OutputAudioText_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_OutputAudioText_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText.class,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText.Builder
+                    .class);
+      }
+
+      // Construct using
+      // com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        sourceCase_ = 0;
+        source_ = null;
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_OutputAudioText_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText
+          getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText
+            .getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText build() {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText result =
+            buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText buildPartial() {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText result =
+            new com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText(this);
+        if (sourceCase_ == 1) {
+          result.source_ = source_;
+        }
+        if (sourceCase_ == 2) {
+          result.source_ = source_;
+        }
+        result.sourceCase_ = sourceCase_;
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other
+            instanceof com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText) {
+          return mergeFrom(
+              (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText other) {
+        if (other
+            == com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText
+                .getDefaultInstance()) return this;
+        switch (other.getSourceCase()) {
+          case TEXT:
+            {
+              sourceCase_ = 1;
+              source_ = other.source_;
+              onChanged();
+              break;
+            }
+          case SSML:
+            {
+              sourceCase_ = 2;
+              source_ = other.source_;
+              onChanged();
+              break;
+            }
+          case SOURCE_NOT_SET:
+            {
+              break;
+            }
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText)
+                  e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private int sourceCase_ = 0;
+      private java.lang.Object source_;
+
+      public SourceCase getSourceCase() {
+        return SourceCase.forNumber(sourceCase_);
+      }
+
+      public Builder clearSource() {
+        sourceCase_ = 0;
+        source_ = null;
+        onChanged();
+        return this;
+      }
+
+      /**
+       *
+       *
+       * <pre>
+       * The raw text to be synthesized.
+       * </pre>
+       *
+       * <code>string text = 1;</code>
+       *
+       * @return The text.
+       */
+      @java.lang.Override
+      public java.lang.String getText() {
+        java.lang.Object ref = "";
+        if (sourceCase_ == 1) {
+          ref = source_;
+        }
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          if (sourceCase_ == 1) {
+            source_ = s;
+          }
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The raw text to be synthesized.
+       * </pre>
+       *
+       * <code>string text = 1;</code>
+       *
+       * @return The bytes for text.
+       */
+      @java.lang.Override
+      public com.google.protobuf.ByteString getTextBytes() {
+        java.lang.Object ref = "";
+        if (sourceCase_ == 1) {
+          ref = source_;
+        }
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          if (sourceCase_ == 1) {
+            source_ = b;
+          }
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The raw text to be synthesized.
+       * </pre>
+       *
+       * <code>string text = 1;</code>
+       *
+       * @param value The text to set.
+       * @return This builder for chaining.
+       */
+      public Builder setText(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        sourceCase_ = 1;
+        source_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The raw text to be synthesized.
+       * </pre>
+       *
+       * <code>string text = 1;</code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearText() {
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+      /**
+       *
+       *
+       * <pre>
+       * The raw text to be synthesized.
+       * </pre>
+       *
+       * <code>string text = 1;</code>
+       *
+       * @param value The bytes for text to set.
+       * @return This builder for chaining.
+       */
+      public Builder setTextBytes(com.google.protobuf.ByteString value) {
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+          throw new NullPointerException();
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+        checkByteStringIsUtf8(value);
+        sourceCase_ = 1;
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+        onChanged();
+        return this;
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+      /**
+       *
+       *
+       * <pre>
+       * The SSML text to be synthesized. For more information, see
+       * [SSML](/speech/text-to-speech/docs/ssml).
+       * </pre>
+       *
+       * <code>string ssml = 2;</code>
+       *
+       * @return The ssml.
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+      /**
+       *
+       *
+       * <pre>
+       * The SSML text to be synthesized. For more information, see
+       * [SSML](/speech/text-to-speech/docs/ssml).
+       * </pre>
+       *
+       * <code>string ssml = 2;</code>
+       *
+       * @return The bytes for ssml.
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+      public com.google.protobuf.ByteString getSsmlBytes() {
+        java.lang.Object ref = "";
+        if (sourceCase_ == 2) {
+          ref = source_;
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+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          if (sourceCase_ == 2) {
+            source_ = b;
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+          return b;
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+      /**
+       *
+       *
+       * <pre>
+       * The SSML text to be synthesized. For more information, see
+       * [SSML](/speech/text-to-speech/docs/ssml).
+       * </pre>
+       *
+       * <code>string ssml = 2;</code>
+       *
+       * @param value The ssml to set.
+       * @return This builder for chaining.
+       */
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+      /**
+       *
+       *
+       * <pre>
+       * The SSML text to be synthesized. For more information, see
+       * [SSML](/speech/text-to-speech/docs/ssml).
+       * </pre>
+       *
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+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearSsml() {
+        if (sourceCase_ == 2) {
+          sourceCase_ = 0;
+          source_ = null;
+          onChanged();
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The SSML text to be synthesized. For more information, see
+       * [SSML](/speech/text-to-speech/docs/ssml).
+       * </pre>
+       *
+       * <code>string ssml = 2;</code>
+       *
+       * @param value The bytes for ssml to set.
+       * @return This builder for chaining.
+       */
+      public Builder setSsmlBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+        sourceCase_ = 2;
+        source_ = value;
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText)
+    private static final com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE =
+          new com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText();
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<OutputAudioText> PARSER =
+        new com.google.protobuf.AbstractParser<OutputAudioText>() {
+          @java.lang.Override
+          public OutputAudioText parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new OutputAudioText(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser<OutputAudioText> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<OutputAudioText> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public interface EndInteractionOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction)
+      com.google.protobuf.MessageOrBuilder {}
+  /**
+   *
+   *
+   * <pre>
+   * Indicates that interaction with the Dialogflow agent has ended.
+   * This message is generated by Dialogflow only and not supposed to be
+   * defined by the user.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction}
+   */
+  public static final class EndInteraction extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction)
+      EndInteractionOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use EndInteraction.newBuilder() to construct.
+    private EndInteraction(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+
+    private EndInteraction() {}
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new EndInteraction();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private EndInteraction(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_EndInteraction_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_EndInteraction_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction.Builder.class);
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction other =
+          (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction) obj;
+
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction parseFrom(
+        byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates that interaction with the Dialogflow agent has ended.
+     * This message is generated by Dialogflow only and not supposed to be
+     * defined by the user.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction)
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteractionOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_EndInteraction_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_EndInteraction_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction.class,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction.Builder
+                    .class);
+      }
+
+      // Construct using
+      // com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_EndInteraction_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction
+          getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction
+            .getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction build() {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction result =
+            buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction buildPartial() {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction result =
+            new com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction(this);
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other
+            instanceof com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction) {
+          return mergeFrom(
+              (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction other) {
+        if (other
+            == com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction
+                .getDefaultInstance()) return this;
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction)
+                  e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction)
+    private static final com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE =
+          new com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction();
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<EndInteraction> PARSER =
+        new com.google.protobuf.AbstractParser<EndInteraction>() {
+          @java.lang.Override
+          public EndInteraction parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new EndInteraction(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser<EndInteraction> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<EndInteraction> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public interface MixedAudioOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * <pre>
+     * Segments this audio response is composed of.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+     * </code>
+     */
+    java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment>
+        getSegmentsList();
+    /**
+     *
+     *
+     * <pre>
+     * Segments this audio response is composed of.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+     * </code>
+     */
+    com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment getSegments(
+        int index);
+    /**
+     *
+     *
+     * <pre>
+     * Segments this audio response is composed of.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+     * </code>
+     */
+    int getSegmentsCount();
+    /**
+     *
+     *
+     * <pre>
+     * Segments this audio response is composed of.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+     * </code>
+     */
+    java.util.List<
+            ? extends
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.SegmentOrBuilder>
+        getSegmentsOrBuilderList();
+    /**
+     *
+     *
+     * <pre>
+     * Segments this audio response is composed of.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+     * </code>
+     */
+    com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.SegmentOrBuilder
+        getSegmentsOrBuilder(int index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents an audio message that is composed of both segments
+   * synthesized from the Dialogflow agent prompts and ones hosted externally
+   * at the specified URIs.
+   * The external URIs are specified via
+   * [play_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.play_audio].
+   * This message is generated by Dialogflow only and not supposed to be
+   * defined by the user.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio}
+   */
+  public static final class MixedAudio extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio)
+      MixedAudioOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use MixedAudio.newBuilder() to construct.
+    private MixedAudio(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+
+    private MixedAudio() {
+      segments_ = java.util.Collections.emptyList();
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new MixedAudio();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private MixedAudio(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      int mutable_bitField0_ = 0;
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                  segments_ =
+                      new java.util.ArrayList<
+                          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio
+                              .Segment>();
+                  mutable_bitField0_ |= 0x00000001;
+                }
+                segments_.add(
+                    input.readMessage(
+                        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment
+                            .parser(),
+                        extensionRegistry));
+                break;
+              }
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        if (((mutable_bitField0_ & 0x00000001) != 0)) {
+          segments_ = java.util.Collections.unmodifiableList(segments_);
+        }
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_MixedAudio_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_MixedAudio_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Builder.class);
+    }
+
+    public interface SegmentOrBuilder
+        extends
+        // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment)
+        com.google.protobuf.MessageOrBuilder {
+
+      /**
+       *
+       *
+       * <pre>
+       * Raw audio synthesized from the Dialogflow agent's response using
+       * the output config specified in the request.
+       * </pre>
+       *
+       * <code>bytes audio = 1;</code>
+       *
+       * @return The audio.
+       */
+      com.google.protobuf.ByteString getAudio();
+
+      /**
+       *
+       *
+       * <pre>
+       * Client-specific URI that points to an audio clip accessible to the
+       * client. Dialogflow does not impose any validation on it.
+       * </pre>
+       *
+       * <code>string uri = 2;</code>
+       *
+       * @return The uri.
+       */
+      java.lang.String getUri();
+      /**
+       *
+       *
+       * <pre>
+       * Client-specific URI that points to an audio clip accessible to the
+       * client. Dialogflow does not impose any validation on it.
+       * </pre>
+       *
+       * <code>string uri = 2;</code>
+       *
+       * @return The bytes for uri.
+       */
+      com.google.protobuf.ByteString getUriBytes();
+
+      /**
+       *
+       *
+       * <pre>
+       * Whether the playback of this segment can be interrupted by the end
+       * user's speech and the client should then start the next Dialogflow
+       * request.
+       * </pre>
+       *
+       * <code>bool allow_playback_interruption = 3;</code>
+       *
+       * @return The allowPlaybackInterruption.
+       */
+      boolean getAllowPlaybackInterruption();
+
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment.ContentCase
+          getContentCase();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents one segment of audio.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment}
+     */
+    public static final class Segment extends com.google.protobuf.GeneratedMessageV3
+        implements
+        // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment)
+        SegmentOrBuilder {
+      private static final long serialVersionUID = 0L;
+      // Use Segment.newBuilder() to construct.
+      private Segment(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+        super(builder);
+      }
+
+      private Segment() {}
+
+      @java.lang.Override
+      @SuppressWarnings({"unused"})
+      protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+        return new Segment();
+      }
+
+      @java.lang.Override
+      public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+        return this.unknownFields;
+      }
+
+      private Segment(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        this();
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
+        com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+            com.google.protobuf.UnknownFieldSet.newBuilder();
+        try {
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  contentCase_ = 1;
+                  content_ = input.readBytes();
+                  break;
+                }
+              case 18:
+                {
+                  java.lang.String s = input.readStringRequireUtf8();
+                  contentCase_ = 2;
+                  content_ = s;
+                  break;
+                }
+              case 24:
+                {
+                  allowPlaybackInterruption_ = input.readBool();
+                  break;
+                }
+              default:
+                {
+                  if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                    done = true;
+                  }
+                  break;
+                }
+            }
+          }
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(this);
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(this);
+        } finally {
+          this.unknownFields = unknownFields.build();
+          makeExtensionsImmutable();
+        }
+      }
+
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_MixedAudio_Segment_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_MixedAudio_Segment_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment.class,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment.Builder
+                    .class);
+      }
+
+      private int contentCase_ = 0;
+      private java.lang.Object content_;
+
+      public enum ContentCase
+          implements
+              com.google.protobuf.Internal.EnumLite,
+              com.google.protobuf.AbstractMessage.InternalOneOfEnum {
+        AUDIO(1),
+        URI(2),
+        CONTENT_NOT_SET(0);
+        private final int value;
+
+        private ContentCase(int value) {
+          this.value = value;
+        }
+        /**
+         * @param value The number of the enum to look for.
+         * @return The enum associated with the given number.
+         * @deprecated Use {@link #forNumber(int)} instead.
+         */
+        @java.lang.Deprecated
+        public static ContentCase valueOf(int value) {
+          return forNumber(value);
+        }
+
+        public static ContentCase forNumber(int value) {
+          switch (value) {
+            case 1:
+              return AUDIO;
+            case 2:
+              return URI;
+            case 0:
+              return CONTENT_NOT_SET;
+            default:
+              return null;
+          }
+        }
+
+        public int getNumber() {
+          return this.value;
+        }
+      };
+
+      public ContentCase getContentCase() {
+        return ContentCase.forNumber(contentCase_);
+      }
+
+      public static final int AUDIO_FIELD_NUMBER = 1;
+      /**
+       *
+       *
+       * <pre>
+       * Raw audio synthesized from the Dialogflow agent's response using
+       * the output config specified in the request.
+       * </pre>
+       *
+       * <code>bytes audio = 1;</code>
+       *
+       * @return The audio.
+       */
+      @java.lang.Override
+      public com.google.protobuf.ByteString getAudio() {
+        if (contentCase_ == 1) {
+          return (com.google.protobuf.ByteString) content_;
+        }
+        return com.google.protobuf.ByteString.EMPTY;
+      }
+
+      public static final int URI_FIELD_NUMBER = 2;
+      /**
+       *
+       *
+       * <pre>
+       * Client-specific URI that points to an audio clip accessible to the
+       * client. Dialogflow does not impose any validation on it.
+       * </pre>
+       *
+       * <code>string uri = 2;</code>
+       *
+       * @return The uri.
+       */
+      public java.lang.String getUri() {
+        java.lang.Object ref = "";
+        if (contentCase_ == 2) {
+          ref = content_;
+        }
+        if (ref instanceof java.lang.String) {
+          return (java.lang.String) ref;
+        } else {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          if (contentCase_ == 2) {
+            content_ = s;
+          }
+          return s;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Client-specific URI that points to an audio clip accessible to the
+       * client. Dialogflow does not impose any validation on it.
+       * </pre>
+       *
+       * <code>string uri = 2;</code>
+       *
+       * @return The bytes for uri.
+       */
+      public com.google.protobuf.ByteString getUriBytes() {
+        java.lang.Object ref = "";
+        if (contentCase_ == 2) {
+          ref = content_;
+        }
+        if (ref instanceof java.lang.String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          if (contentCase_ == 2) {
+            content_ = b;
+          }
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+
+      public static final int ALLOW_PLAYBACK_INTERRUPTION_FIELD_NUMBER = 3;
+      private boolean allowPlaybackInterruption_;
+      /**
+       *
+       *
+       * <pre>
+       * Whether the playback of this segment can be interrupted by the end
+       * user's speech and the client should then start the next Dialogflow
+       * request.
+       * </pre>
+       *
+       * <code>bool allow_playback_interruption = 3;</code>
+       *
+       * @return The allowPlaybackInterruption.
+       */
+      @java.lang.Override
+      public boolean getAllowPlaybackInterruption() {
+        return allowPlaybackInterruption_;
+      }
+
+      private byte memoizedIsInitialized = -1;
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        byte isInitialized = memoizedIsInitialized;
+        if (isInitialized == 1) return true;
+        if (isInitialized == 0) return false;
+
+        memoizedIsInitialized = 1;
+        return true;
+      }
+
+      @java.lang.Override
+      public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+        if (contentCase_ == 1) {
+          output.writeBytes(1, (com.google.protobuf.ByteString) content_);
+        }
+        if (contentCase_ == 2) {
+          com.google.protobuf.GeneratedMessageV3.writeString(output, 2, content_);
+        }
+        if (allowPlaybackInterruption_ != false) {
+          output.writeBool(3, allowPlaybackInterruption_);
+        }
+        unknownFields.writeTo(output);
+      }
+
+      @java.lang.Override
+      public int getSerializedSize() {
+        int size = memoizedSize;
+        if (size != -1) return size;
+
+        size = 0;
+        if (contentCase_ == 1) {
+          size +=
+              com.google.protobuf.CodedOutputStream.computeBytesSize(
+                  1, (com.google.protobuf.ByteString) content_);
+        }
+        if (contentCase_ == 2) {
+          size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, content_);
+        }
+        if (allowPlaybackInterruption_ != false) {
+          size +=
+              com.google.protobuf.CodedOutputStream.computeBoolSize(3, allowPlaybackInterruption_);
+        }
+        size += unknownFields.getSerializedSize();
+        memoizedSize = size;
+        return size;
+      }
+
+      @java.lang.Override
+      public boolean equals(final java.lang.Object obj) {
+        if (obj == this) {
+          return true;
+        }
+        if (!(obj
+            instanceof com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment)) {
+          return super.equals(obj);
+        }
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment other =
+            (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment) obj;
+
+        if (getAllowPlaybackInterruption() != other.getAllowPlaybackInterruption()) return false;
+        if (!getContentCase().equals(other.getContentCase())) return false;
+        switch (contentCase_) {
+          case 1:
+            if (!getAudio().equals(other.getAudio())) return false;
+            break;
+          case 2:
+            if (!getUri().equals(other.getUri())) return false;
+            break;
+          case 0:
+          default:
+        }
+        if (!unknownFields.equals(other.unknownFields)) return false;
+        return true;
+      }
+
+      @java.lang.Override
+      public int hashCode() {
+        if (memoizedHashCode != 0) {
+          return memoizedHashCode;
+        }
+        int hash = 41;
+        hash = (19 * hash) + getDescriptor().hashCode();
+        hash = (37 * hash) + ALLOW_PLAYBACK_INTERRUPTION_FIELD_NUMBER;
+        hash =
+            (53 * hash) + com.google.protobuf.Internal.hashBoolean(getAllowPlaybackInterruption());
+        switch (contentCase_) {
+          case 1:
+            hash = (37 * hash) + AUDIO_FIELD_NUMBER;
+            hash = (53 * hash) + getAudio().hashCode();
+            break;
+          case 2:
+            hash = (37 * hash) + URI_FIELD_NUMBER;
+            hash = (53 * hash) + getUri().hashCode();
+            break;
+          case 0:
+          default:
+        }
+        hash = (29 * hash) + unknownFields.hashCode();
+        memoizedHashCode = hash;
+        return hash;
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment
+          parseFrom(java.nio.ByteBuffer data)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment
+          parseFrom(
+              java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment
+          parseFrom(com.google.protobuf.ByteString data)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment
+          parseFrom(
+              com.google.protobuf.ByteString data,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment
+          parseFrom(byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment
+          parseFrom(byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment
+          parseFrom(java.io.InputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment
+          parseFrom(
+              java.io.InputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment
+          parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment
+          parseDelimitedFrom(
+              java.io.InputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment
+          parseFrom(com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment
+          parseFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      @java.lang.Override
+      public Builder newBuilderForType() {
+        return newBuilder();
+      }
+
+      public static Builder newBuilder() {
+        return DEFAULT_INSTANCE.toBuilder();
+      }
+
+      public static Builder newBuilder(
+          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment prototype) {
+        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+      }
+
+      @java.lang.Override
+      public Builder toBuilder() {
+        return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+      }
+
+      @java.lang.Override
+      protected Builder newBuilderForType(
+          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        Builder builder = new Builder(parent);
+        return builder;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Represents one segment of audio.
+       * </pre>
+       *
+       * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment}
+       */
+      public static final class Builder
+          extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+          implements
+          // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment)
+          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.SegmentOrBuilder {
+        public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+          return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+              .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_MixedAudio_Segment_descriptor;
+        }
+
+        @java.lang.Override
+        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+            internalGetFieldAccessorTable() {
+          return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+              .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_MixedAudio_Segment_fieldAccessorTable
+              .ensureFieldAccessorsInitialized(
+                  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment.class,
+                  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment.Builder
+                      .class);
+        }
+
+        // Construct using
+        // com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment.newBuilder()
+        private Builder() {
+          maybeForceBuilderInitialization();
+        }
+
+        private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+          super(parent);
+          maybeForceBuilderInitialization();
+        }
+
+        private void maybeForceBuilderInitialization() {
+          if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+        }
+
+        @java.lang.Override
+        public Builder clear() {
+          super.clear();
+          allowPlaybackInterruption_ = false;
+
+          contentCase_ = 0;
+          content_ = null;
+          return this;
+        }
+
+        @java.lang.Override
+        public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+          return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+              .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_MixedAudio_Segment_descriptor;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment
+            getDefaultInstanceForType() {
+          return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment
+              .getDefaultInstance();
+        }
+
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment build() {
+          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment result =
+              buildPartial();
+          if (!result.isInitialized()) {
+            throw newUninitializedMessageException(result);
+          }
+          return result;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment
+            buildPartial() {
+          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment result =
+              new com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment(this);
+          if (contentCase_ == 1) {
+            result.content_ = content_;
+          }
+          if (contentCase_ == 2) {
+            result.content_ = content_;
+          }
+          result.allowPlaybackInterruption_ = allowPlaybackInterruption_;
+          result.contentCase_ = contentCase_;
+          onBuilt();
+          return result;
+        }
+
+        @java.lang.Override
+        public Builder clone() {
+          return super.clone();
+        }
+
+        @java.lang.Override
+        public Builder setField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.setField(field, value);
+        }
+
+        @java.lang.Override
+        public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+          return super.clearField(field);
+        }
+
+        @java.lang.Override
+        public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+          return super.clearOneof(oneof);
+        }
+
+        @java.lang.Override
+        public Builder setRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field,
+            int index,
+            java.lang.Object value) {
+          return super.setRepeatedField(field, index, value);
+        }
+
+        @java.lang.Override
+        public Builder addRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.addRepeatedField(field, value);
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(com.google.protobuf.Message other) {
+          if (other
+              instanceof
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment) {
+            return mergeFrom(
+                (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment) other);
+          } else {
+            super.mergeFrom(other);
+            return this;
+          }
+        }
+
+        public Builder mergeFrom(
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment other) {
+          if (other
+              == com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment
+                  .getDefaultInstance()) return this;
+          if (other.getAllowPlaybackInterruption() != false) {
+            setAllowPlaybackInterruption(other.getAllowPlaybackInterruption());
+          }
+          switch (other.getContentCase()) {
+            case AUDIO:
+              {
+                setAudio(other.getAudio());
+                break;
+              }
+            case URI:
+              {
+                contentCase_ = 2;
+                content_ = other.content_;
+                onChanged();
+                break;
+              }
+            case CONTENT_NOT_SET:
+              {
+                break;
+              }
+          }
+          this.mergeUnknownFields(other.unknownFields);
+          onChanged();
+          return this;
+        }
+
+        @java.lang.Override
+        public final boolean isInitialized() {
+          return true;
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment parsedMessage =
+              null;
+          try {
+            parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            parsedMessage =
+                (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment)
+                    e.getUnfinishedMessage();
+            throw e.unwrapIOException();
+          } finally {
+            if (parsedMessage != null) {
+              mergeFrom(parsedMessage);
+            }
+          }
+          return this;
+        }
+
+        private int contentCase_ = 0;
+        private java.lang.Object content_;
+
+        public ContentCase getContentCase() {
+          return ContentCase.forNumber(contentCase_);
+        }
+
+        public Builder clearContent() {
+          contentCase_ = 0;
+          content_ = null;
+          onChanged();
+          return this;
+        }
+
+        /**
+         *
+         *
+         * <pre>
+         * Raw audio synthesized from the Dialogflow agent's response using
+         * the output config specified in the request.
+         * </pre>
+         *
+         * <code>bytes audio = 1;</code>
+         *
+         * @return The audio.
+         */
+        public com.google.protobuf.ByteString getAudio() {
+          if (contentCase_ == 1) {
+            return (com.google.protobuf.ByteString) content_;
+          }
+          return com.google.protobuf.ByteString.EMPTY;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Raw audio synthesized from the Dialogflow agent's response using
+         * the output config specified in the request.
+         * </pre>
+         *
+         * <code>bytes audio = 1;</code>
+         *
+         * @param value The audio to set.
+         * @return This builder for chaining.
+         */
+        public Builder setAudio(com.google.protobuf.ByteString value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          contentCase_ = 1;
+          content_ = value;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Raw audio synthesized from the Dialogflow agent's response using
+         * the output config specified in the request.
+         * </pre>
+         *
+         * <code>bytes audio = 1;</code>
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearAudio() {
+          if (contentCase_ == 1) {
+            contentCase_ = 0;
+            content_ = null;
+            onChanged();
+          }
+          return this;
+        }
+
+        /**
+         *
+         *
+         * <pre>
+         * Client-specific URI that points to an audio clip accessible to the
+         * client. Dialogflow does not impose any validation on it.
+         * </pre>
+         *
+         * <code>string uri = 2;</code>
+         *
+         * @return The uri.
+         */
+        @java.lang.Override
+        public java.lang.String getUri() {
+          java.lang.Object ref = "";
+          if (contentCase_ == 2) {
+            ref = content_;
+          }
+          if (!(ref instanceof java.lang.String)) {
+            com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+            java.lang.String s = bs.toStringUtf8();
+            if (contentCase_ == 2) {
+              content_ = s;
+            }
+            return s;
+          } else {
+            return (java.lang.String) ref;
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Client-specific URI that points to an audio clip accessible to the
+         * client. Dialogflow does not impose any validation on it.
+         * </pre>
+         *
+         * <code>string uri = 2;</code>
+         *
+         * @return The bytes for uri.
+         */
+        @java.lang.Override
+        public com.google.protobuf.ByteString getUriBytes() {
+          java.lang.Object ref = "";
+          if (contentCase_ == 2) {
+            ref = content_;
+          }
+          if (ref instanceof String) {
+            com.google.protobuf.ByteString b =
+                com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+            if (contentCase_ == 2) {
+              content_ = b;
+            }
+            return b;
+          } else {
+            return (com.google.protobuf.ByteString) ref;
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Client-specific URI that points to an audio clip accessible to the
+         * client. Dialogflow does not impose any validation on it.
+         * </pre>
+         *
+         * <code>string uri = 2;</code>
+         *
+         * @param value The uri to set.
+         * @return This builder for chaining.
+         */
+        public Builder setUri(java.lang.String value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          contentCase_ = 2;
+          content_ = value;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Client-specific URI that points to an audio clip accessible to the
+         * client. Dialogflow does not impose any validation on it.
+         * </pre>
+         *
+         * <code>string uri = 2;</code>
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearUri() {
+          if (contentCase_ == 2) {
+            contentCase_ = 0;
+            content_ = null;
+            onChanged();
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Client-specific URI that points to an audio clip accessible to the
+         * client. Dialogflow does not impose any validation on it.
+         * </pre>
+         *
+         * <code>string uri = 2;</code>
+         *
+         * @param value The bytes for uri to set.
+         * @return This builder for chaining.
+         */
+        public Builder setUriBytes(com.google.protobuf.ByteString value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          checkByteStringIsUtf8(value);
+          contentCase_ = 2;
+          content_ = value;
+          onChanged();
+          return this;
+        }
+
+        private boolean allowPlaybackInterruption_;
+        /**
+         *
+         *
+         * <pre>
+         * Whether the playback of this segment can be interrupted by the end
+         * user's speech and the client should then start the next Dialogflow
+         * request.
+         * </pre>
+         *
+         * <code>bool allow_playback_interruption = 3;</code>
+         *
+         * @return The allowPlaybackInterruption.
+         */
+        @java.lang.Override
+        public boolean getAllowPlaybackInterruption() {
+          return allowPlaybackInterruption_;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Whether the playback of this segment can be interrupted by the end
+         * user's speech and the client should then start the next Dialogflow
+         * request.
+         * </pre>
+         *
+         * <code>bool allow_playback_interruption = 3;</code>
+         *
+         * @param value The allowPlaybackInterruption to set.
+         * @return This builder for chaining.
+         */
+        public Builder setAllowPlaybackInterruption(boolean value) {
+
+          allowPlaybackInterruption_ = value;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Whether the playback of this segment can be interrupted by the end
+         * user's speech and the client should then start the next Dialogflow
+         * request.
+         * </pre>
+         *
+         * <code>bool allow_playback_interruption = 3;</code>
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearAllowPlaybackInterruption() {
+
+          allowPlaybackInterruption_ = false;
+          onChanged();
+          return this;
+        }
+
+        @java.lang.Override
+        public final Builder setUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.setUnknownFields(unknownFields);
+        }
+
+        @java.lang.Override
+        public final Builder mergeUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.mergeUnknownFields(unknownFields);
+        }
+
+        // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment)
+      }
+
+      // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment)
+      private static final com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment
+          DEFAULT_INSTANCE;
+
+      static {
+        DEFAULT_INSTANCE =
+            new com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment();
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment
+          getDefaultInstance() {
+        return DEFAULT_INSTANCE;
+      }
+
+      private static final com.google.protobuf.Parser<Segment> PARSER =
+          new com.google.protobuf.AbstractParser<Segment>() {
+            @java.lang.Override
+            public Segment parsePartialFrom(
+                com.google.protobuf.CodedInputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+              return new Segment(input, extensionRegistry);
+            }
+          };
+
+      public static com.google.protobuf.Parser<Segment> parser() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Parser<Segment> getParserForType() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment
+          getDefaultInstanceForType() {
+        return DEFAULT_INSTANCE;
+      }
+    }
+
+    public static final int SEGMENTS_FIELD_NUMBER = 1;
+    private java.util.List<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment>
+        segments_;
+    /**
+     *
+     *
+     * <pre>
+     * Segments this audio response is composed of.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+     * </code>
+     */
+    @java.lang.Override
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment>
+        getSegmentsList() {
+      return segments_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Segments this audio response is composed of.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+     * </code>
+     */
+    @java.lang.Override
+    public java.util.List<
+            ? extends
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.SegmentOrBuilder>
+        getSegmentsOrBuilderList() {
+      return segments_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Segments this audio response is composed of.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+     * </code>
+     */
+    @java.lang.Override
+    public int getSegmentsCount() {
+      return segments_.size();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Segments this audio response is composed of.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+     * </code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment getSegments(
+        int index) {
+      return segments_.get(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Segments this audio response is composed of.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+     * </code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.SegmentOrBuilder
+        getSegmentsOrBuilder(int index) {
+      return segments_.get(index);
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      for (int i = 0; i < segments_.size(); i++) {
+        output.writeMessage(1, segments_.get(i));
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      for (int i = 0; i < segments_.size(); i++) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, segments_.get(i));
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio other =
+          (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio) obj;
+
+      if (!getSegmentsList().equals(other.getSegmentsList())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      if (getSegmentsCount() > 0) {
+        hash = (37 * hash) + SEGMENTS_FIELD_NUMBER;
+        hash = (53 * hash) + getSegmentsList().hashCode();
+      }
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio parseFrom(
+        byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents an audio message that is composed of both segments
+     * synthesized from the Dialogflow agent prompts and ones hosted externally
+     * at the specified URIs.
+     * The external URIs are specified via
+     * [play_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.play_audio].
+     * This message is generated by Dialogflow only and not supposed to be
+     * defined by the user.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio)
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudioOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_MixedAudio_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_MixedAudio_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.class,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Builder.class);
+      }
+
+      // Construct using
+      // com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+          getSegmentsFieldBuilder();
+        }
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        if (segmentsBuilder_ == null) {
+          segments_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000001);
+        } else {
+          segmentsBuilder_.clear();
+        }
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_MixedAudio_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio
+          getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio
+            .getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio build() {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio buildPartial() {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio result =
+            new com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio(this);
+        int from_bitField0_ = bitField0_;
+        if (segmentsBuilder_ == null) {
+          if (((bitField0_ & 0x00000001) != 0)) {
+            segments_ = java.util.Collections.unmodifiableList(segments_);
+            bitField0_ = (bitField0_ & ~0x00000001);
+          }
+          result.segments_ = segments_;
+        } else {
+          result.segments_ = segmentsBuilder_.build();
+        }
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio) {
+          return mergeFrom(
+              (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio other) {
+        if (other
+            == com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio
+                .getDefaultInstance()) return this;
+        if (segmentsBuilder_ == null) {
+          if (!other.segments_.isEmpty()) {
+            if (segments_.isEmpty()) {
+              segments_ = other.segments_;
+              bitField0_ = (bitField0_ & ~0x00000001);
+            } else {
+              ensureSegmentsIsMutable();
+              segments_.addAll(other.segments_);
+            }
+            onChanged();
+          }
+        } else {
+          if (!other.segments_.isEmpty()) {
+            if (segmentsBuilder_.isEmpty()) {
+              segmentsBuilder_.dispose();
+              segmentsBuilder_ = null;
+              segments_ = other.segments_;
+              bitField0_ = (bitField0_ & ~0x00000001);
+              segmentsBuilder_ =
+                  com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                      ? getSegmentsFieldBuilder()
+                      : null;
+            } else {
+              segmentsBuilder_.addAllMessages(other.segments_);
+            }
+          }
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio)
+                  e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private int bitField0_;
+
+      private java.util.List<
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment>
+          segments_ = java.util.Collections.emptyList();
+
+      private void ensureSegmentsIsMutable() {
+        if (!((bitField0_ & 0x00000001) != 0)) {
+          segments_ =
+              new java.util.ArrayList<
+                  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment>(
+                  segments_);
+          bitField0_ |= 0x00000001;
+        }
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment,
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment.Builder,
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.SegmentOrBuilder>
+          segmentsBuilder_;
+
+      /**
+       *
+       *
+       * <pre>
+       * Segments this audio response is composed of.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+       * </code>
+       */
+      public java.util.List<
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment>
+          getSegmentsList() {
+        if (segmentsBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(segments_);
+        } else {
+          return segmentsBuilder_.getMessageList();
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Segments this audio response is composed of.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+       * </code>
+       */
+      public int getSegmentsCount() {
+        if (segmentsBuilder_ == null) {
+          return segments_.size();
+        } else {
+          return segmentsBuilder_.getCount();
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Segments this audio response is composed of.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+       * </code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment getSegments(
+          int index) {
+        if (segmentsBuilder_ == null) {
+          return segments_.get(index);
+        } else {
+          return segmentsBuilder_.getMessage(index);
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Segments this audio response is composed of.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+       * </code>
+       */
+      public Builder setSegments(
+          int index,
+          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment value) {
+        if (segmentsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureSegmentsIsMutable();
+          segments_.set(index, value);
+          onChanged();
+        } else {
+          segmentsBuilder_.setMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Segments this audio response is composed of.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+       * </code>
+       */
+      public Builder setSegments(
+          int index,
+          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment.Builder
+              builderForValue) {
+        if (segmentsBuilder_ == null) {
+          ensureSegmentsIsMutable();
+          segments_.set(index, builderForValue.build());
+          onChanged();
+        } else {
+          segmentsBuilder_.setMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Segments this audio response is composed of.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+       * </code>
+       */
+      public Builder addSegments(
+          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment value) {
+        if (segmentsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureSegmentsIsMutable();
+          segments_.add(value);
+          onChanged();
+        } else {
+          segmentsBuilder_.addMessage(value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Segments this audio response is composed of.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+       * </code>
+       */
+      public Builder addSegments(
+          int index,
+          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment value) {
+        if (segmentsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureSegmentsIsMutable();
+          segments_.add(index, value);
+          onChanged();
+        } else {
+          segmentsBuilder_.addMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Segments this audio response is composed of.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+       * </code>
+       */
+      public Builder addSegments(
+          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment.Builder
+              builderForValue) {
+        if (segmentsBuilder_ == null) {
+          ensureSegmentsIsMutable();
+          segments_.add(builderForValue.build());
+          onChanged();
+        } else {
+          segmentsBuilder_.addMessage(builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Segments this audio response is composed of.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+       * </code>
+       */
+      public Builder addSegments(
+          int index,
+          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment.Builder
+              builderForValue) {
+        if (segmentsBuilder_ == null) {
+          ensureSegmentsIsMutable();
+          segments_.add(index, builderForValue.build());
+          onChanged();
+        } else {
+          segmentsBuilder_.addMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Segments this audio response is composed of.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+       * </code>
+       */
+      public Builder addAllSegments(
+          java.lang.Iterable<
+                  ? extends
+                      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment>
+              values) {
+        if (segmentsBuilder_ == null) {
+          ensureSegmentsIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, segments_);
+          onChanged();
+        } else {
+          segmentsBuilder_.addAllMessages(values);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Segments this audio response is composed of.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+       * </code>
+       */
+      public Builder clearSegments() {
+        if (segmentsBuilder_ == null) {
+          segments_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000001);
+          onChanged();
+        } else {
+          segmentsBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Segments this audio response is composed of.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+       * </code>
+       */
+      public Builder removeSegments(int index) {
+        if (segmentsBuilder_ == null) {
+          ensureSegmentsIsMutable();
+          segments_.remove(index);
+          onChanged();
+        } else {
+          segmentsBuilder_.remove(index);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Segments this audio response is composed of.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+       * </code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment.Builder
+          getSegmentsBuilder(int index) {
+        return getSegmentsFieldBuilder().getBuilder(index);
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Segments this audio response is composed of.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+       * </code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.SegmentOrBuilder
+          getSegmentsOrBuilder(int index) {
+        if (segmentsBuilder_ == null) {
+          return segments_.get(index);
+        } else {
+          return segmentsBuilder_.getMessageOrBuilder(index);
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Segments this audio response is composed of.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+       * </code>
+       */
+      public java.util.List<
+              ? extends
+                  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio
+                      .SegmentOrBuilder>
+          getSegmentsOrBuilderList() {
+        if (segmentsBuilder_ != null) {
+          return segmentsBuilder_.getMessageOrBuilderList();
+        } else {
+          return java.util.Collections.unmodifiableList(segments_);
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Segments this audio response is composed of.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+       * </code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment.Builder
+          addSegmentsBuilder() {
+        return getSegmentsFieldBuilder()
+            .addBuilder(
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment
+                    .getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Segments this audio response is composed of.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+       * </code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment.Builder
+          addSegmentsBuilder(int index) {
+        return getSegmentsFieldBuilder()
+            .addBuilder(
+                index,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment
+                    .getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Segments this audio response is composed of.
+       * </pre>
+       *
+       * <code>
+       * repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment segments = 1;
+       * </code>
+       */
+      public java.util.List<
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment.Builder>
+          getSegmentsBuilderList() {
+        return getSegmentsFieldBuilder().getBuilderList();
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment,
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment.Builder,
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.SegmentOrBuilder>
+          getSegmentsFieldBuilder() {
+        if (segmentsBuilder_ == null) {
+          segmentsBuilder_ =
+              new com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment,
+                  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Segment.Builder,
+                  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio
+                      .SegmentOrBuilder>(
+                  segments_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+          segments_ = null;
+        }
+        return segmentsBuilder_;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio)
+    private static final com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio();
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<MixedAudio> PARSER =
+        new com.google.protobuf.AbstractParser<MixedAudio>() {
+          @java.lang.Override
+          public MixedAudio parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new MixedAudio(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser<MixedAudio> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<MixedAudio> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  private int messageCase_ = 0;
+  private java.lang.Object message_;
+
+  public enum MessageCase
+      implements
+          com.google.protobuf.Internal.EnumLite,
+          com.google.protobuf.AbstractMessage.InternalOneOfEnum {
+    TEXT(1),
+    PAYLOAD(2),
+    @java.lang.Deprecated
+    HUMAN_AGENT_HANDOFF(6),
+    CONVERSATION_SUCCESS(9),
+    OUTPUT_AUDIO_TEXT(8),
+    LIVE_AGENT_HANDOFF(10),
+    END_INTERACTION(11),
+    PLAY_AUDIO(12),
+    MIXED_AUDIO(13),
+    MESSAGE_NOT_SET(0);
+    private final int value;
+
+    private MessageCase(int value) {
+      this.value = value;
+    }
+    /**
+     * @param value The number of the enum to look for.
+     * @return The enum associated with the given number.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static MessageCase valueOf(int value) {
+      return forNumber(value);
+    }
+
+    public static MessageCase forNumber(int value) {
+      switch (value) {
+        case 1:
+          return TEXT;
+        case 2:
+          return PAYLOAD;
+        case 6:
+          return HUMAN_AGENT_HANDOFF;
+        case 9:
+          return CONVERSATION_SUCCESS;
+        case 8:
+          return OUTPUT_AUDIO_TEXT;
+        case 10:
+          return LIVE_AGENT_HANDOFF;
+        case 11:
+          return END_INTERACTION;
+        case 12:
+          return PLAY_AUDIO;
+        case 13:
+          return MIXED_AUDIO;
+        case 0:
+          return MESSAGE_NOT_SET;
+        default:
+          return null;
+      }
+    }
+
+    public int getNumber() {
+      return this.value;
+    }
+  };
+
+  public MessageCase getMessageCase() {
+    return MessageCase.forNumber(messageCase_);
+  }
+
+  public static final int TEXT_FIELD_NUMBER = 1;
+  /**
+   *
+   *
+   * <pre>
+   * Returns a text response.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text text = 1;</code>
+   *
+   * @return Whether the text field is set.
+   */
+  @java.lang.Override
+  public boolean hasText() {
+    return messageCase_ == 1;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Returns a text response.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text text = 1;</code>
+   *
+   * @return The text.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text getText() {
+    if (messageCase_ == 1) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text) message_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text.getDefaultInstance();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Returns a text response.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text text = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.TextOrBuilder getTextOrBuilder() {
+    if (messageCase_ == 1) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text) message_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text.getDefaultInstance();
+  }
+
+  public static final int PAYLOAD_FIELD_NUMBER = 2;
+  /**
+   *
+   *
+   * <pre>
+   * Returns a response containing a custom, platform-specific payload.
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 2;</code>
+   *
+   * @return Whether the payload field is set.
+   */
+  @java.lang.Override
+  public boolean hasPayload() {
+    return messageCase_ == 2;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Returns a response containing a custom, platform-specific payload.
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 2;</code>
+   *
+   * @return The payload.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Struct getPayload() {
+    if (messageCase_ == 2) {
+      return (com.google.protobuf.Struct) message_;
+    }
+    return com.google.protobuf.Struct.getDefaultInstance();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Returns a response containing a custom, platform-specific payload.
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.StructOrBuilder getPayloadOrBuilder() {
+    if (messageCase_ == 2) {
+      return (com.google.protobuf.Struct) message_;
+    }
+    return com.google.protobuf.Struct.getDefaultInstance();
+  }
+
+  public static final int HUMAN_AGENT_HANDOFF_FIELD_NUMBER = 6;
+  /**
+   *
+   *
+   * <pre>
+   * Hands off conversation to a human agent.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff human_agent_handoff = 6 [deprecated = true];
+   * </code>
+   *
+   * @return Whether the humanAgentHandoff field is set.
+   */
+  @java.lang.Override
+  @java.lang.Deprecated
+  public boolean hasHumanAgentHandoff() {
+    return messageCase_ == 6;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Hands off conversation to a human agent.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff human_agent_handoff = 6 [deprecated = true];
+   * </code>
+   *
+   * @return The humanAgentHandoff.
+   */
+  @java.lang.Override
+  @java.lang.Deprecated
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+      getHumanAgentHandoff() {
+    if (messageCase_ == 6) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff) message_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+        .getDefaultInstance();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Hands off conversation to a human agent.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff human_agent_handoff = 6 [deprecated = true];
+   * </code>
+   */
+  @java.lang.Override
+  @java.lang.Deprecated
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoffOrBuilder
+      getHumanAgentHandoffOrBuilder() {
+    if (messageCase_ == 6) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff) message_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+        .getDefaultInstance();
+  }
+
+  public static final int CONVERSATION_SUCCESS_FIELD_NUMBER = 9;
+  /**
+   *
+   *
+   * <pre>
+   * Indicates that the conversation succeeded.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess conversation_success = 9;
+   * </code>
+   *
+   * @return Whether the conversationSuccess field is set.
+   */
+  @java.lang.Override
+  public boolean hasConversationSuccess() {
+    return messageCase_ == 9;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Indicates that the conversation succeeded.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess conversation_success = 9;
+   * </code>
+   *
+   * @return The conversationSuccess.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+      getConversationSuccess() {
+    if (messageCase_ == 9) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess) message_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+        .getDefaultInstance();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Indicates that the conversation succeeded.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess conversation_success = 9;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccessOrBuilder
+      getConversationSuccessOrBuilder() {
+    if (messageCase_ == 9) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess) message_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+        .getDefaultInstance();
+  }
+
+  public static final int OUTPUT_AUDIO_TEXT_FIELD_NUMBER = 8;
+  /**
+   *
+   *
+   * <pre>
+   * A text or ssml response that is preferentially used for TTS output audio
+   * synthesis, as described in the comment on the ResponseMessage message.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText output_audio_text = 8;
+   * </code>
+   *
+   * @return Whether the outputAudioText field is set.
+   */
+  @java.lang.Override
+  public boolean hasOutputAudioText() {
+    return messageCase_ == 8;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A text or ssml response that is preferentially used for TTS output audio
+   * synthesis, as described in the comment on the ResponseMessage message.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText output_audio_text = 8;
+   * </code>
+   *
+   * @return The outputAudioText.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText
+      getOutputAudioText() {
+    if (messageCase_ == 8) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText) message_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText
+        .getDefaultInstance();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A text or ssml response that is preferentially used for TTS output audio
+   * synthesis, as described in the comment on the ResponseMessage message.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText output_audio_text = 8;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioTextOrBuilder
+      getOutputAudioTextOrBuilder() {
+    if (messageCase_ == 8) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText) message_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText
+        .getDefaultInstance();
+  }
+
+  public static final int LIVE_AGENT_HANDOFF_FIELD_NUMBER = 10;
+  /**
+   *
+   *
+   * <pre>
+   * Hands off conversation to a human agent.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff live_agent_handoff = 10;
+   * </code>
+   *
+   * @return Whether the liveAgentHandoff field is set.
+   */
+  @java.lang.Override
+  public boolean hasLiveAgentHandoff() {
+    return messageCase_ == 10;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Hands off conversation to a human agent.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff live_agent_handoff = 10;
+   * </code>
+   *
+   * @return The liveAgentHandoff.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff
+      getLiveAgentHandoff() {
+    if (messageCase_ == 10) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff) message_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff
+        .getDefaultInstance();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Hands off conversation to a human agent.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff live_agent_handoff = 10;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoffOrBuilder
+      getLiveAgentHandoffOrBuilder() {
+    if (messageCase_ == 10) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff) message_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff
+        .getDefaultInstance();
+  }
+
+  public static final int END_INTERACTION_FIELD_NUMBER = 11;
+  /**
+   *
+   *
+   * <pre>
+   * Output only. A signal that indicates the interaction with the Dialogflow agent has
+   * ended.
+   * This message is generated by Dialogflow only when the conversation
+   * reaches `END_SESSION` or `END_PAGE` page. It is not supposed to be
+   * defined by the user.
+   * It's guaranteed that there is at most one such message in each response.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction end_interaction = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return Whether the endInteraction field is set.
+   */
+  @java.lang.Override
+  public boolean hasEndInteraction() {
+    return messageCase_ == 11;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Output only. A signal that indicates the interaction with the Dialogflow agent has
+   * ended.
+   * This message is generated by Dialogflow only when the conversation
+   * reaches `END_SESSION` or `END_PAGE` page. It is not supposed to be
+   * defined by the user.
+   * It's guaranteed that there is at most one such message in each response.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction end_interaction = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return The endInteraction.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction getEndInteraction() {
+    if (messageCase_ == 11) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction) message_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction
+        .getDefaultInstance();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Output only. A signal that indicates the interaction with the Dialogflow agent has
+   * ended.
+   * This message is generated by Dialogflow only when the conversation
+   * reaches `END_SESSION` or `END_PAGE` page. It is not supposed to be
+   * defined by the user.
+   * It's guaranteed that there is at most one such message in each response.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction end_interaction = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteractionOrBuilder
+      getEndInteractionOrBuilder() {
+    if (messageCase_ == 11) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction) message_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction
+        .getDefaultInstance();
+  }
+
+  public static final int PLAY_AUDIO_FIELD_NUMBER = 12;
+  /**
+   *
+   *
+   * <pre>
+   * Signal that the client should play an audio clip hosted at a
+   * client-specific URI. Dialogflow uses this to construct
+   * [mixed_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.mixed_audio]. However, Dialogflow itself
+   * does not try to read or process the URI in any way.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio play_audio = 12;</code>
+   *
+   * @return Whether the playAudio field is set.
+   */
+  @java.lang.Override
+  public boolean hasPlayAudio() {
+    return messageCase_ == 12;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Signal that the client should play an audio clip hosted at a
+   * client-specific URI. Dialogflow uses this to construct
+   * [mixed_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.mixed_audio]. However, Dialogflow itself
+   * does not try to read or process the URI in any way.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio play_audio = 12;</code>
+   *
+   * @return The playAudio.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio getPlayAudio() {
+    if (messageCase_ == 12) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio) message_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio.getDefaultInstance();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Signal that the client should play an audio clip hosted at a
+   * client-specific URI. Dialogflow uses this to construct
+   * [mixed_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.mixed_audio]. However, Dialogflow itself
+   * does not try to read or process the URI in any way.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio play_audio = 12;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudioOrBuilder
+      getPlayAudioOrBuilder() {
+    if (messageCase_ == 12) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio) message_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio.getDefaultInstance();
+  }
+
+  public static final int MIXED_AUDIO_FIELD_NUMBER = 13;
+  /**
+   *
+   *
+   * <pre>
+   * Output only. An audio response message composed of both the synthesized Dialogflow
+   * agent responses and responses defined via
+   * [play_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.play_audio].
+   * This message is generated by Dialogflow only and not supposed to be
+   * defined by the user.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio mixed_audio = 13 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return Whether the mixedAudio field is set.
+   */
+  @java.lang.Override
+  public boolean hasMixedAudio() {
+    return messageCase_ == 13;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Output only. An audio response message composed of both the synthesized Dialogflow
+   * agent responses and responses defined via
+   * [play_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.play_audio].
+   * This message is generated by Dialogflow only and not supposed to be
+   * defined by the user.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio mixed_audio = 13 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return The mixedAudio.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio getMixedAudio() {
+    if (messageCase_ == 13) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio) message_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.getDefaultInstance();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Output only. An audio response message composed of both the synthesized Dialogflow
+   * agent responses and responses defined via
+   * [play_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.play_audio].
+   * This message is generated by Dialogflow only and not supposed to be
+   * defined by the user.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio mixed_audio = 13 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudioOrBuilder
+      getMixedAudioOrBuilder() {
+    if (messageCase_ == 13) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio) message_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.getDefaultInstance();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (messageCase_ == 1) {
+      output.writeMessage(
+          1, (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text) message_);
+    }
+    if (messageCase_ == 2) {
+      output.writeMessage(2, (com.google.protobuf.Struct) message_);
+    }
+    if (messageCase_ == 6) {
+      output.writeMessage(
+          6, (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff) message_);
+    }
+    if (messageCase_ == 8) {
+      output.writeMessage(
+          8, (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText) message_);
+    }
+    if (messageCase_ == 9) {
+      output.writeMessage(
+          9, (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess) message_);
+    }
+    if (messageCase_ == 10) {
+      output.writeMessage(
+          10, (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff) message_);
+    }
+    if (messageCase_ == 11) {
+      output.writeMessage(
+          11, (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction) message_);
+    }
+    if (messageCase_ == 12) {
+      output.writeMessage(
+          12, (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio) message_);
+    }
+    if (messageCase_ == 13) {
+      output.writeMessage(
+          13, (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio) message_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (messageCase_ == 1) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              1, (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text) message_);
+    }
+    if (messageCase_ == 2) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              2, (com.google.protobuf.Struct) message_);
+    }
+    if (messageCase_ == 6) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              6,
+              (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff) message_);
+    }
+    if (messageCase_ == 8) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              8, (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText) message_);
+    }
+    if (messageCase_ == 9) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              9,
+              (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess)
+                  message_);
+    }
+    if (messageCase_ == 10) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              10,
+              (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff) message_);
+    }
+    if (messageCase_ == 11) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              11, (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction) message_);
+    }
+    if (messageCase_ == 12) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              12, (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio) message_);
+    }
+    if (messageCase_ == 13) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              13, (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio) message_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage other =
+        (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage) obj;
+
+    if (!getMessageCase().equals(other.getMessageCase())) return false;
+    switch (messageCase_) {
+      case 1:
+        if (!getText().equals(other.getText())) return false;
+        break;
+      case 2:
+        if (!getPayload().equals(other.getPayload())) return false;
+        break;
+      case 6:
+        if (!getHumanAgentHandoff().equals(other.getHumanAgentHandoff())) return false;
+        break;
+      case 9:
+        if (!getConversationSuccess().equals(other.getConversationSuccess())) return false;
+        break;
+      case 8:
+        if (!getOutputAudioText().equals(other.getOutputAudioText())) return false;
+        break;
+      case 10:
+        if (!getLiveAgentHandoff().equals(other.getLiveAgentHandoff())) return false;
+        break;
+      case 11:
+        if (!getEndInteraction().equals(other.getEndInteraction())) return false;
+        break;
+      case 12:
+        if (!getPlayAudio().equals(other.getPlayAudio())) return false;
+        break;
+      case 13:
+        if (!getMixedAudio().equals(other.getMixedAudio())) return false;
+        break;
+      case 0:
+      default:
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    switch (messageCase_) {
+      case 1:
+        hash = (37 * hash) + TEXT_FIELD_NUMBER;
+        hash = (53 * hash) + getText().hashCode();
+        break;
+      case 2:
+        hash = (37 * hash) + PAYLOAD_FIELD_NUMBER;
+        hash = (53 * hash) + getPayload().hashCode();
+        break;
+      case 6:
+        hash = (37 * hash) + HUMAN_AGENT_HANDOFF_FIELD_NUMBER;
+        hash = (53 * hash) + getHumanAgentHandoff().hashCode();
+        break;
+      case 9:
+        hash = (37 * hash) + CONVERSATION_SUCCESS_FIELD_NUMBER;
+        hash = (53 * hash) + getConversationSuccess().hashCode();
+        break;
+      case 8:
+        hash = (37 * hash) + OUTPUT_AUDIO_TEXT_FIELD_NUMBER;
+        hash = (53 * hash) + getOutputAudioText().hashCode();
+        break;
+      case 10:
+        hash = (37 * hash) + LIVE_AGENT_HANDOFF_FIELD_NUMBER;
+        hash = (53 * hash) + getLiveAgentHandoff().hashCode();
+        break;
+      case 11:
+        hash = (37 * hash) + END_INTERACTION_FIELD_NUMBER;
+        hash = (53 * hash) + getEndInteraction().hashCode();
+        break;
+      case 12:
+        hash = (37 * hash) + PLAY_AUDIO_FIELD_NUMBER;
+        hash = (53 * hash) + getPlayAudio().hashCode();
+        break;
+      case 13:
+        hash = (37 * hash) + MIXED_AUDIO_FIELD_NUMBER;
+        hash = (53 * hash) + getMixedAudio().hashCode();
+        break;
+      case 0:
+      default:
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents a response message that can be returned by a conversational agent.
+   * Response messages are also used for output audio synthesis. The approach is
+   * as follows:
+   * * If at least one OutputAudioText response is present, then all
+   *   OutputAudioText responses are linearly concatenated, and the result is used
+   *   for output audio synthesis.
+   * * If the OutputAudioText responses are a mixture of text and SSML, then the
+   *   concatenated result is treated as SSML; otherwise, the result is treated as
+   *   either text or SSML as appropriate. The agent designer should ideally use
+   *   either text or SSML consistently throughout the bot design.
+   * * Otherwise, all Text responses are linearly concatenated, and the result is
+   *   used for output audio synthesis.
+   * This approach allows for more sophisticated user experience scenarios, where
+   * the text displayed to the user may differ from what is heard.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.ResponseMessage}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.ResponseMessage)
+      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.class,
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      messageCase_ = 0;
+      message_ = null;
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage build() {
+      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage result =
+          new com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage(this);
+      if (messageCase_ == 1) {
+        if (textBuilder_ == null) {
+          result.message_ = message_;
+        } else {
+          result.message_ = textBuilder_.build();
+        }
+      }
+      if (messageCase_ == 2) {
+        if (payloadBuilder_ == null) {
+          result.message_ = message_;
+        } else {
+          result.message_ = payloadBuilder_.build();
+        }
+      }
+      if (messageCase_ == 6) {
+        if (humanAgentHandoffBuilder_ == null) {
+          result.message_ = message_;
+        } else {
+          result.message_ = humanAgentHandoffBuilder_.build();
+        }
+      }
+      if (messageCase_ == 9) {
+        if (conversationSuccessBuilder_ == null) {
+          result.message_ = message_;
+        } else {
+          result.message_ = conversationSuccessBuilder_.build();
+        }
+      }
+      if (messageCase_ == 8) {
+        if (outputAudioTextBuilder_ == null) {
+          result.message_ = message_;
+        } else {
+          result.message_ = outputAudioTextBuilder_.build();
+        }
+      }
+      if (messageCase_ == 10) {
+        if (liveAgentHandoffBuilder_ == null) {
+          result.message_ = message_;
+        } else {
+          result.message_ = liveAgentHandoffBuilder_.build();
+        }
+      }
+      if (messageCase_ == 11) {
+        if (endInteractionBuilder_ == null) {
+          result.message_ = message_;
+        } else {
+          result.message_ = endInteractionBuilder_.build();
+        }
+      }
+      if (messageCase_ == 12) {
+        if (playAudioBuilder_ == null) {
+          result.message_ = message_;
+        } else {
+          result.message_ = playAudioBuilder_.build();
+        }
+      }
+      if (messageCase_ == 13) {
+        if (mixedAudioBuilder_ == null) {
+          result.message_ = message_;
+        } else {
+          result.message_ = mixedAudioBuilder_.build();
+        }
+      }
+      result.messageCase_ = messageCase_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.getDefaultInstance())
+        return this;
+      switch (other.getMessageCase()) {
+        case TEXT:
+          {
+            mergeText(other.getText());
+            break;
+          }
+        case PAYLOAD:
+          {
+            mergePayload(other.getPayload());
+            break;
+          }
+        case HUMAN_AGENT_HANDOFF:
+          {
+            mergeHumanAgentHandoff(other.getHumanAgentHandoff());
+            break;
+          }
+        case CONVERSATION_SUCCESS:
+          {
+            mergeConversationSuccess(other.getConversationSuccess());
+            break;
+          }
+        case OUTPUT_AUDIO_TEXT:
+          {
+            mergeOutputAudioText(other.getOutputAudioText());
+            break;
+          }
+        case LIVE_AGENT_HANDOFF:
+          {
+            mergeLiveAgentHandoff(other.getLiveAgentHandoff());
+            break;
+          }
+        case END_INTERACTION:
+          {
+            mergeEndInteraction(other.getEndInteraction());
+            break;
+          }
+        case PLAY_AUDIO:
+          {
+            mergePlayAudio(other.getPlayAudio());
+            break;
+          }
+        case MIXED_AUDIO:
+          {
+            mergeMixedAudio(other.getMixedAudio());
+            break;
+          }
+        case MESSAGE_NOT_SET:
+          {
+            break;
+          }
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int messageCase_ = 0;
+    private java.lang.Object message_;
+
+    public MessageCase getMessageCase() {
+      return MessageCase.forNumber(messageCase_);
+    }
+
+    public Builder clearMessage() {
+      messageCase_ = 0;
+      message_ = null;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.TextOrBuilder>
+        textBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Returns a text response.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text text = 1;</code>
+     *
+     * @return Whether the text field is set.
+     */
+    @java.lang.Override
+    public boolean hasText() {
+      return messageCase_ == 1;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Returns a text response.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text text = 1;</code>
+     *
+     * @return The text.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text getText() {
+      if (textBuilder_ == null) {
+        if (messageCase_ == 1) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text) message_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text.getDefaultInstance();
+      } else {
+        if (messageCase_ == 1) {
+          return textBuilder_.getMessage();
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text.getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Returns a text response.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text text = 1;</code>
+     */
+    public Builder setText(com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text value) {
+      if (textBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        message_ = value;
+        onChanged();
+      } else {
+        textBuilder_.setMessage(value);
+      }
+      messageCase_ = 1;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Returns a text response.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text text = 1;</code>
+     */
+    public Builder setText(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text.Builder builderForValue) {
+      if (textBuilder_ == null) {
+        message_ = builderForValue.build();
+        onChanged();
+      } else {
+        textBuilder_.setMessage(builderForValue.build());
+      }
+      messageCase_ = 1;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Returns a text response.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text text = 1;</code>
+     */
+    public Builder mergeText(com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text value) {
+      if (textBuilder_ == null) {
+        if (messageCase_ == 1
+            && message_
+                != com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text
+                    .getDefaultInstance()) {
+          message_ =
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text.newBuilder(
+                      (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text) message_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          message_ = value;
+        }
+        onChanged();
+      } else {
+        if (messageCase_ == 1) {
+          textBuilder_.mergeFrom(value);
+        }
+        textBuilder_.setMessage(value);
+      }
+      messageCase_ = 1;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Returns a text response.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text text = 1;</code>
+     */
+    public Builder clearText() {
+      if (textBuilder_ == null) {
+        if (messageCase_ == 1) {
+          messageCase_ = 0;
+          message_ = null;
+          onChanged();
+        }
+      } else {
+        if (messageCase_ == 1) {
+          messageCase_ = 0;
+          message_ = null;
+        }
+        textBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Returns a text response.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text text = 1;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text.Builder getTextBuilder() {
+      return getTextFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Returns a text response.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text text = 1;</code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.TextOrBuilder getTextOrBuilder() {
+      if ((messageCase_ == 1) && (textBuilder_ != null)) {
+        return textBuilder_.getMessageOrBuilder();
+      } else {
+        if (messageCase_ == 1) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text) message_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text.getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Returns a text response.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text text = 1;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.TextOrBuilder>
+        getTextFieldBuilder() {
+      if (textBuilder_ == null) {
+        if (!(messageCase_ == 1)) {
+          message_ =
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text.getDefaultInstance();
+        }
+        textBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.TextOrBuilder>(
+                (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text) message_,
+                getParentForChildren(),
+                isClean());
+        message_ = null;
+      }
+      messageCase_ = 1;
+      onChanged();
+      ;
+      return textBuilder_;
+    }
+
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Struct,
+            com.google.protobuf.Struct.Builder,
+            com.google.protobuf.StructOrBuilder>
+        payloadBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Returns a response containing a custom, platform-specific payload.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 2;</code>
+     *
+     * @return Whether the payload field is set.
+     */
+    @java.lang.Override
+    public boolean hasPayload() {
+      return messageCase_ == 2;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Returns a response containing a custom, platform-specific payload.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 2;</code>
+     *
+     * @return The payload.
+     */
+    @java.lang.Override
+    public com.google.protobuf.Struct getPayload() {
+      if (payloadBuilder_ == null) {
+        if (messageCase_ == 2) {
+          return (com.google.protobuf.Struct) message_;
+        }
+        return com.google.protobuf.Struct.getDefaultInstance();
+      } else {
+        if (messageCase_ == 2) {
+          return payloadBuilder_.getMessage();
+        }
+        return com.google.protobuf.Struct.getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Returns a response containing a custom, platform-specific payload.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 2;</code>
+     */
+    public Builder setPayload(com.google.protobuf.Struct value) {
+      if (payloadBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        message_ = value;
+        onChanged();
+      } else {
+        payloadBuilder_.setMessage(value);
+      }
+      messageCase_ = 2;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Returns a response containing a custom, platform-specific payload.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 2;</code>
+     */
+    public Builder setPayload(com.google.protobuf.Struct.Builder builderForValue) {
+      if (payloadBuilder_ == null) {
+        message_ = builderForValue.build();
+        onChanged();
+      } else {
+        payloadBuilder_.setMessage(builderForValue.build());
+      }
+      messageCase_ = 2;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Returns a response containing a custom, platform-specific payload.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 2;</code>
+     */
+    public Builder mergePayload(com.google.protobuf.Struct value) {
+      if (payloadBuilder_ == null) {
+        if (messageCase_ == 2 && message_ != com.google.protobuf.Struct.getDefaultInstance()) {
+          message_ =
+              com.google.protobuf.Struct.newBuilder((com.google.protobuf.Struct) message_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          message_ = value;
+        }
+        onChanged();
+      } else {
+        if (messageCase_ == 2) {
+          payloadBuilder_.mergeFrom(value);
+        }
+        payloadBuilder_.setMessage(value);
+      }
+      messageCase_ = 2;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Returns a response containing a custom, platform-specific payload.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 2;</code>
+     */
+    public Builder clearPayload() {
+      if (payloadBuilder_ == null) {
+        if (messageCase_ == 2) {
+          messageCase_ = 0;
+          message_ = null;
+          onChanged();
+        }
+      } else {
+        if (messageCase_ == 2) {
+          messageCase_ = 0;
+          message_ = null;
+        }
+        payloadBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Returns a response containing a custom, platform-specific payload.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 2;</code>
+     */
+    public com.google.protobuf.Struct.Builder getPayloadBuilder() {
+      return getPayloadFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Returns a response containing a custom, platform-specific payload.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 2;</code>
+     */
+    @java.lang.Override
+    public com.google.protobuf.StructOrBuilder getPayloadOrBuilder() {
+      if ((messageCase_ == 2) && (payloadBuilder_ != null)) {
+        return payloadBuilder_.getMessageOrBuilder();
+      } else {
+        if (messageCase_ == 2) {
+          return (com.google.protobuf.Struct) message_;
+        }
+        return com.google.protobuf.Struct.getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Returns a response containing a custom, platform-specific payload.
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 2;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Struct,
+            com.google.protobuf.Struct.Builder,
+            com.google.protobuf.StructOrBuilder>
+        getPayloadFieldBuilder() {
+      if (payloadBuilder_ == null) {
+        if (!(messageCase_ == 2)) {
+          message_ = com.google.protobuf.Struct.getDefaultInstance();
+        }
+        payloadBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.Struct,
+                com.google.protobuf.Struct.Builder,
+                com.google.protobuf.StructOrBuilder>(
+                (com.google.protobuf.Struct) message_, getParentForChildren(), isClean());
+        message_ = null;
+      }
+      messageCase_ = 2;
+      onChanged();
+      ;
+      return payloadBuilder_;
+    }
+
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoffOrBuilder>
+        humanAgentHandoffBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Hands off conversation to a human agent.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff human_agent_handoff = 6 [deprecated = true];
+     * </code>
+     *
+     * @return Whether the humanAgentHandoff field is set.
+     */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public boolean hasHumanAgentHandoff() {
+      return messageCase_ == 6;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Hands off conversation to a human agent.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff human_agent_handoff = 6 [deprecated = true];
+     * </code>
+     *
+     * @return The humanAgentHandoff.
+     */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+        getHumanAgentHandoff() {
+      if (humanAgentHandoffBuilder_ == null) {
+        if (messageCase_ == 6) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff)
+              message_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+            .getDefaultInstance();
+      } else {
+        if (messageCase_ == 6) {
+          return humanAgentHandoffBuilder_.getMessage();
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Hands off conversation to a human agent.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff human_agent_handoff = 6 [deprecated = true];
+     * </code>
+     */
+    @java.lang.Deprecated
+    public Builder setHumanAgentHandoff(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff value) {
+      if (humanAgentHandoffBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        message_ = value;
+        onChanged();
+      } else {
+        humanAgentHandoffBuilder_.setMessage(value);
+      }
+      messageCase_ = 6;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Hands off conversation to a human agent.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff human_agent_handoff = 6 [deprecated = true];
+     * </code>
+     */
+    @java.lang.Deprecated
+    public Builder setHumanAgentHandoff(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff.Builder
+            builderForValue) {
+      if (humanAgentHandoffBuilder_ == null) {
+        message_ = builderForValue.build();
+        onChanged();
+      } else {
+        humanAgentHandoffBuilder_.setMessage(builderForValue.build());
+      }
+      messageCase_ = 6;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Hands off conversation to a human agent.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff human_agent_handoff = 6 [deprecated = true];
+     * </code>
+     */
+    @java.lang.Deprecated
+    public Builder mergeHumanAgentHandoff(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff value) {
+      if (humanAgentHandoffBuilder_ == null) {
+        if (messageCase_ == 6
+            && message_
+                != com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+                    .getDefaultInstance()) {
+          message_ =
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff.newBuilder(
+                      (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff)
+                          message_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          message_ = value;
+        }
+        onChanged();
+      } else {
+        if (messageCase_ == 6) {
+          humanAgentHandoffBuilder_.mergeFrom(value);
+        }
+        humanAgentHandoffBuilder_.setMessage(value);
+      }
+      messageCase_ = 6;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Hands off conversation to a human agent.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff human_agent_handoff = 6 [deprecated = true];
+     * </code>
+     */
+    @java.lang.Deprecated
+    public Builder clearHumanAgentHandoff() {
+      if (humanAgentHandoffBuilder_ == null) {
+        if (messageCase_ == 6) {
+          messageCase_ = 0;
+          message_ = null;
+          onChanged();
+        }
+      } else {
+        if (messageCase_ == 6) {
+          messageCase_ = 0;
+          message_ = null;
+        }
+        humanAgentHandoffBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Hands off conversation to a human agent.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff human_agent_handoff = 6 [deprecated = true];
+     * </code>
+     */
+    @java.lang.Deprecated
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff.Builder
+        getHumanAgentHandoffBuilder() {
+      return getHumanAgentHandoffFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Hands off conversation to a human agent.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff human_agent_handoff = 6 [deprecated = true];
+     * </code>
+     */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoffOrBuilder
+        getHumanAgentHandoffOrBuilder() {
+      if ((messageCase_ == 6) && (humanAgentHandoffBuilder_ != null)) {
+        return humanAgentHandoffBuilder_.getMessageOrBuilder();
+      } else {
+        if (messageCase_ == 6) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff)
+              message_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Hands off conversation to a human agent.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff human_agent_handoff = 6 [deprecated = true];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoffOrBuilder>
+        getHumanAgentHandoffFieldBuilder() {
+      if (humanAgentHandoffBuilder_ == null) {
+        if (!(messageCase_ == 6)) {
+          message_ =
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff
+                  .getDefaultInstance();
+        }
+        humanAgentHandoffBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoffOrBuilder>(
+                (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff) message_,
+                getParentForChildren(),
+                isClean());
+        message_ = null;
+      }
+      messageCase_ = 6;
+      onChanged();
+      ;
+      return humanAgentHandoffBuilder_;
+    }
+
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccessOrBuilder>
+        conversationSuccessBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Indicates that the conversation succeeded.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess conversation_success = 9;
+     * </code>
+     *
+     * @return Whether the conversationSuccess field is set.
+     */
+    @java.lang.Override
+    public boolean hasConversationSuccess() {
+      return messageCase_ == 9;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates that the conversation succeeded.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess conversation_success = 9;
+     * </code>
+     *
+     * @return The conversationSuccess.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+        getConversationSuccess() {
+      if (conversationSuccessBuilder_ == null) {
+        if (messageCase_ == 9) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess)
+              message_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+            .getDefaultInstance();
+      } else {
+        if (messageCase_ == 9) {
+          return conversationSuccessBuilder_.getMessage();
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates that the conversation succeeded.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess conversation_success = 9;
+     * </code>
+     */
+    public Builder setConversationSuccess(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess value) {
+      if (conversationSuccessBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        message_ = value;
+        onChanged();
+      } else {
+        conversationSuccessBuilder_.setMessage(value);
+      }
+      messageCase_ = 9;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates that the conversation succeeded.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess conversation_success = 9;
+     * </code>
+     */
+    public Builder setConversationSuccess(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess.Builder
+            builderForValue) {
+      if (conversationSuccessBuilder_ == null) {
+        message_ = builderForValue.build();
+        onChanged();
+      } else {
+        conversationSuccessBuilder_.setMessage(builderForValue.build());
+      }
+      messageCase_ = 9;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates that the conversation succeeded.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess conversation_success = 9;
+     * </code>
+     */
+    public Builder mergeConversationSuccess(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess value) {
+      if (conversationSuccessBuilder_ == null) {
+        if (messageCase_ == 9
+            && message_
+                != com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+                    .getDefaultInstance()) {
+          message_ =
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess.newBuilder(
+                      (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess)
+                          message_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          message_ = value;
+        }
+        onChanged();
+      } else {
+        if (messageCase_ == 9) {
+          conversationSuccessBuilder_.mergeFrom(value);
+        }
+        conversationSuccessBuilder_.setMessage(value);
+      }
+      messageCase_ = 9;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates that the conversation succeeded.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess conversation_success = 9;
+     * </code>
+     */
+    public Builder clearConversationSuccess() {
+      if (conversationSuccessBuilder_ == null) {
+        if (messageCase_ == 9) {
+          messageCase_ = 0;
+          message_ = null;
+          onChanged();
+        }
+      } else {
+        if (messageCase_ == 9) {
+          messageCase_ = 0;
+          message_ = null;
+        }
+        conversationSuccessBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates that the conversation succeeded.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess conversation_success = 9;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess.Builder
+        getConversationSuccessBuilder() {
+      return getConversationSuccessFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates that the conversation succeeded.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess conversation_success = 9;
+     * </code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccessOrBuilder
+        getConversationSuccessOrBuilder() {
+      if ((messageCase_ == 9) && (conversationSuccessBuilder_ != null)) {
+        return conversationSuccessBuilder_.getMessageOrBuilder();
+      } else {
+        if (messageCase_ == 9) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess)
+              message_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates that the conversation succeeded.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess conversation_success = 9;
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccessOrBuilder>
+        getConversationSuccessFieldBuilder() {
+      if (conversationSuccessBuilder_ == null) {
+        if (!(messageCase_ == 9)) {
+          message_ =
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+                  .getDefaultInstance();
+        }
+        conversationSuccessBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage
+                    .ConversationSuccessOrBuilder>(
+                (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess)
+                    message_,
+                getParentForChildren(),
+                isClean());
+        message_ = null;
+      }
+      messageCase_ = 9;
+      onChanged();
+      ;
+      return conversationSuccessBuilder_;
+    }
+
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioTextOrBuilder>
+        outputAudioTextBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * A text or ssml response that is preferentially used for TTS output audio
+     * synthesis, as described in the comment on the ResponseMessage message.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText output_audio_text = 8;
+     * </code>
+     *
+     * @return Whether the outputAudioText field is set.
+     */
+    @java.lang.Override
+    public boolean hasOutputAudioText() {
+      return messageCase_ == 8;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A text or ssml response that is preferentially used for TTS output audio
+     * synthesis, as described in the comment on the ResponseMessage message.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText output_audio_text = 8;
+     * </code>
+     *
+     * @return The outputAudioText.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText
+        getOutputAudioText() {
+      if (outputAudioTextBuilder_ == null) {
+        if (messageCase_ == 8) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText) message_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText
+            .getDefaultInstance();
+      } else {
+        if (messageCase_ == 8) {
+          return outputAudioTextBuilder_.getMessage();
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A text or ssml response that is preferentially used for TTS output audio
+     * synthesis, as described in the comment on the ResponseMessage message.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText output_audio_text = 8;
+     * </code>
+     */
+    public Builder setOutputAudioText(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText value) {
+      if (outputAudioTextBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        message_ = value;
+        onChanged();
+      } else {
+        outputAudioTextBuilder_.setMessage(value);
+      }
+      messageCase_ = 8;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A text or ssml response that is preferentially used for TTS output audio
+     * synthesis, as described in the comment on the ResponseMessage message.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText output_audio_text = 8;
+     * </code>
+     */
+    public Builder setOutputAudioText(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText.Builder
+            builderForValue) {
+      if (outputAudioTextBuilder_ == null) {
+        message_ = builderForValue.build();
+        onChanged();
+      } else {
+        outputAudioTextBuilder_.setMessage(builderForValue.build());
+      }
+      messageCase_ = 8;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A text or ssml response that is preferentially used for TTS output audio
+     * synthesis, as described in the comment on the ResponseMessage message.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText output_audio_text = 8;
+     * </code>
+     */
+    public Builder mergeOutputAudioText(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText value) {
+      if (outputAudioTextBuilder_ == null) {
+        if (messageCase_ == 8
+            && message_
+                != com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText
+                    .getDefaultInstance()) {
+          message_ =
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText.newBuilder(
+                      (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText)
+                          message_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          message_ = value;
+        }
+        onChanged();
+      } else {
+        if (messageCase_ == 8) {
+          outputAudioTextBuilder_.mergeFrom(value);
+        }
+        outputAudioTextBuilder_.setMessage(value);
+      }
+      messageCase_ = 8;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A text or ssml response that is preferentially used for TTS output audio
+     * synthesis, as described in the comment on the ResponseMessage message.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText output_audio_text = 8;
+     * </code>
+     */
+    public Builder clearOutputAudioText() {
+      if (outputAudioTextBuilder_ == null) {
+        if (messageCase_ == 8) {
+          messageCase_ = 0;
+          message_ = null;
+          onChanged();
+        }
+      } else {
+        if (messageCase_ == 8) {
+          messageCase_ = 0;
+          message_ = null;
+        }
+        outputAudioTextBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A text or ssml response that is preferentially used for TTS output audio
+     * synthesis, as described in the comment on the ResponseMessage message.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText output_audio_text = 8;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText.Builder
+        getOutputAudioTextBuilder() {
+      return getOutputAudioTextFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A text or ssml response that is preferentially used for TTS output audio
+     * synthesis, as described in the comment on the ResponseMessage message.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText output_audio_text = 8;
+     * </code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioTextOrBuilder
+        getOutputAudioTextOrBuilder() {
+      if ((messageCase_ == 8) && (outputAudioTextBuilder_ != null)) {
+        return outputAudioTextBuilder_.getMessageOrBuilder();
+      } else {
+        if (messageCase_ == 8) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText) message_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A text or ssml response that is preferentially used for TTS output audio
+     * synthesis, as described in the comment on the ResponseMessage message.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText output_audio_text = 8;
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioTextOrBuilder>
+        getOutputAudioTextFieldBuilder() {
+      if (outputAudioTextBuilder_ == null) {
+        if (!(messageCase_ == 8)) {
+          message_ =
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText
+                  .getDefaultInstance();
+        }
+        outputAudioTextBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioTextOrBuilder>(
+                (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText) message_,
+                getParentForChildren(),
+                isClean());
+        message_ = null;
+      }
+      messageCase_ = 8;
+      onChanged();
+      ;
+      return outputAudioTextBuilder_;
+    }
+
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoffOrBuilder>
+        liveAgentHandoffBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Hands off conversation to a human agent.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff live_agent_handoff = 10;
+     * </code>
+     *
+     * @return Whether the liveAgentHandoff field is set.
+     */
+    @java.lang.Override
+    public boolean hasLiveAgentHandoff() {
+      return messageCase_ == 10;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Hands off conversation to a human agent.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff live_agent_handoff = 10;
+     * </code>
+     *
+     * @return The liveAgentHandoff.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff
+        getLiveAgentHandoff() {
+      if (liveAgentHandoffBuilder_ == null) {
+        if (messageCase_ == 10) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff) message_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff
+            .getDefaultInstance();
+      } else {
+        if (messageCase_ == 10) {
+          return liveAgentHandoffBuilder_.getMessage();
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Hands off conversation to a human agent.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff live_agent_handoff = 10;
+     * </code>
+     */
+    public Builder setLiveAgentHandoff(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff value) {
+      if (liveAgentHandoffBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        message_ = value;
+        onChanged();
+      } else {
+        liveAgentHandoffBuilder_.setMessage(value);
+      }
+      messageCase_ = 10;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Hands off conversation to a human agent.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff live_agent_handoff = 10;
+     * </code>
+     */
+    public Builder setLiveAgentHandoff(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff.Builder
+            builderForValue) {
+      if (liveAgentHandoffBuilder_ == null) {
+        message_ = builderForValue.build();
+        onChanged();
+      } else {
+        liveAgentHandoffBuilder_.setMessage(builderForValue.build());
+      }
+      messageCase_ = 10;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Hands off conversation to a human agent.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff live_agent_handoff = 10;
+     * </code>
+     */
+    public Builder mergeLiveAgentHandoff(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff value) {
+      if (liveAgentHandoffBuilder_ == null) {
+        if (messageCase_ == 10
+            && message_
+                != com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff
+                    .getDefaultInstance()) {
+          message_ =
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff.newBuilder(
+                      (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff)
+                          message_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          message_ = value;
+        }
+        onChanged();
+      } else {
+        if (messageCase_ == 10) {
+          liveAgentHandoffBuilder_.mergeFrom(value);
+        }
+        liveAgentHandoffBuilder_.setMessage(value);
+      }
+      messageCase_ = 10;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Hands off conversation to a human agent.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff live_agent_handoff = 10;
+     * </code>
+     */
+    public Builder clearLiveAgentHandoff() {
+      if (liveAgentHandoffBuilder_ == null) {
+        if (messageCase_ == 10) {
+          messageCase_ = 0;
+          message_ = null;
+          onChanged();
+        }
+      } else {
+        if (messageCase_ == 10) {
+          messageCase_ = 0;
+          message_ = null;
+        }
+        liveAgentHandoffBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Hands off conversation to a human agent.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff live_agent_handoff = 10;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff.Builder
+        getLiveAgentHandoffBuilder() {
+      return getLiveAgentHandoffFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Hands off conversation to a human agent.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff live_agent_handoff = 10;
+     * </code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoffOrBuilder
+        getLiveAgentHandoffOrBuilder() {
+      if ((messageCase_ == 10) && (liveAgentHandoffBuilder_ != null)) {
+        return liveAgentHandoffBuilder_.getMessageOrBuilder();
+      } else {
+        if (messageCase_ == 10) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff) message_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Hands off conversation to a human agent.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff live_agent_handoff = 10;
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoffOrBuilder>
+        getLiveAgentHandoffFieldBuilder() {
+      if (liveAgentHandoffBuilder_ == null) {
+        if (!(messageCase_ == 10)) {
+          message_ =
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff
+                  .getDefaultInstance();
+        }
+        liveAgentHandoffBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoffOrBuilder>(
+                (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff) message_,
+                getParentForChildren(),
+                isClean());
+        message_ = null;
+      }
+      messageCase_ = 10;
+      onChanged();
+      ;
+      return liveAgentHandoffBuilder_;
+    }
+
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteractionOrBuilder>
+        endInteractionBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Output only. A signal that indicates the interaction with the Dialogflow agent has
+     * ended.
+     * This message is generated by Dialogflow only when the conversation
+     * reaches `END_SESSION` or `END_PAGE` page. It is not supposed to be
+     * defined by the user.
+     * It's guaranteed that there is at most one such message in each response.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction end_interaction = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     *
+     * @return Whether the endInteraction field is set.
+     */
+    @java.lang.Override
+    public boolean hasEndInteraction() {
+      return messageCase_ == 11;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. A signal that indicates the interaction with the Dialogflow agent has
+     * ended.
+     * This message is generated by Dialogflow only when the conversation
+     * reaches `END_SESSION` or `END_PAGE` page. It is not supposed to be
+     * defined by the user.
+     * It's guaranteed that there is at most one such message in each response.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction end_interaction = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     *
+     * @return The endInteraction.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction
+        getEndInteraction() {
+      if (endInteractionBuilder_ == null) {
+        if (messageCase_ == 11) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction) message_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction
+            .getDefaultInstance();
+      } else {
+        if (messageCase_ == 11) {
+          return endInteractionBuilder_.getMessage();
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. A signal that indicates the interaction with the Dialogflow agent has
+     * ended.
+     * This message is generated by Dialogflow only when the conversation
+     * reaches `END_SESSION` or `END_PAGE` page. It is not supposed to be
+     * defined by the user.
+     * It's guaranteed that there is at most one such message in each response.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction end_interaction = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public Builder setEndInteraction(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction value) {
+      if (endInteractionBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        message_ = value;
+        onChanged();
+      } else {
+        endInteractionBuilder_.setMessage(value);
+      }
+      messageCase_ = 11;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. A signal that indicates the interaction with the Dialogflow agent has
+     * ended.
+     * This message is generated by Dialogflow only when the conversation
+     * reaches `END_SESSION` or `END_PAGE` page. It is not supposed to be
+     * defined by the user.
+     * It's guaranteed that there is at most one such message in each response.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction end_interaction = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public Builder setEndInteraction(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction.Builder
+            builderForValue) {
+      if (endInteractionBuilder_ == null) {
+        message_ = builderForValue.build();
+        onChanged();
+      } else {
+        endInteractionBuilder_.setMessage(builderForValue.build());
+      }
+      messageCase_ = 11;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. A signal that indicates the interaction with the Dialogflow agent has
+     * ended.
+     * This message is generated by Dialogflow only when the conversation
+     * reaches `END_SESSION` or `END_PAGE` page. It is not supposed to be
+     * defined by the user.
+     * It's guaranteed that there is at most one such message in each response.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction end_interaction = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public Builder mergeEndInteraction(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction value) {
+      if (endInteractionBuilder_ == null) {
+        if (messageCase_ == 11
+            && message_
+                != com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction
+                    .getDefaultInstance()) {
+          message_ =
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction.newBuilder(
+                      (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction)
+                          message_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          message_ = value;
+        }
+        onChanged();
+      } else {
+        if (messageCase_ == 11) {
+          endInteractionBuilder_.mergeFrom(value);
+        }
+        endInteractionBuilder_.setMessage(value);
+      }
+      messageCase_ = 11;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. A signal that indicates the interaction with the Dialogflow agent has
+     * ended.
+     * This message is generated by Dialogflow only when the conversation
+     * reaches `END_SESSION` or `END_PAGE` page. It is not supposed to be
+     * defined by the user.
+     * It's guaranteed that there is at most one such message in each response.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction end_interaction = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public Builder clearEndInteraction() {
+      if (endInteractionBuilder_ == null) {
+        if (messageCase_ == 11) {
+          messageCase_ = 0;
+          message_ = null;
+          onChanged();
+        }
+      } else {
+        if (messageCase_ == 11) {
+          messageCase_ = 0;
+          message_ = null;
+        }
+        endInteractionBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. A signal that indicates the interaction with the Dialogflow agent has
+     * ended.
+     * This message is generated by Dialogflow only when the conversation
+     * reaches `END_SESSION` or `END_PAGE` page. It is not supposed to be
+     * defined by the user.
+     * It's guaranteed that there is at most one such message in each response.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction end_interaction = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction.Builder
+        getEndInteractionBuilder() {
+      return getEndInteractionFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. A signal that indicates the interaction with the Dialogflow agent has
+     * ended.
+     * This message is generated by Dialogflow only when the conversation
+     * reaches `END_SESSION` or `END_PAGE` page. It is not supposed to be
+     * defined by the user.
+     * It's guaranteed that there is at most one such message in each response.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction end_interaction = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteractionOrBuilder
+        getEndInteractionOrBuilder() {
+      if ((messageCase_ == 11) && (endInteractionBuilder_ != null)) {
+        return endInteractionBuilder_.getMessageOrBuilder();
+      } else {
+        if (messageCase_ == 11) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction) message_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. A signal that indicates the interaction with the Dialogflow agent has
+     * ended.
+     * This message is generated by Dialogflow only when the conversation
+     * reaches `END_SESSION` or `END_PAGE` page. It is not supposed to be
+     * defined by the user.
+     * It's guaranteed that there is at most one such message in each response.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction end_interaction = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteractionOrBuilder>
+        getEndInteractionFieldBuilder() {
+      if (endInteractionBuilder_ == null) {
+        if (!(messageCase_ == 11)) {
+          message_ =
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction
+                  .getDefaultInstance();
+        }
+        endInteractionBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteractionOrBuilder>(
+                (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction) message_,
+                getParentForChildren(),
+                isClean());
+        message_ = null;
+      }
+      messageCase_ = 11;
+      onChanged();
+      ;
+      return endInteractionBuilder_;
+    }
+
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudioOrBuilder>
+        playAudioBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Signal that the client should play an audio clip hosted at a
+     * client-specific URI. Dialogflow uses this to construct
+     * [mixed_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.mixed_audio]. However, Dialogflow itself
+     * does not try to read or process the URI in any way.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio play_audio = 12;</code>
+     *
+     * @return Whether the playAudio field is set.
+     */
+    @java.lang.Override
+    public boolean hasPlayAudio() {
+      return messageCase_ == 12;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Signal that the client should play an audio clip hosted at a
+     * client-specific URI. Dialogflow uses this to construct
+     * [mixed_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.mixed_audio]. However, Dialogflow itself
+     * does not try to read or process the URI in any way.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio play_audio = 12;</code>
+     *
+     * @return The playAudio.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio getPlayAudio() {
+      if (playAudioBuilder_ == null) {
+        if (messageCase_ == 12) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio) message_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio
+            .getDefaultInstance();
+      } else {
+        if (messageCase_ == 12) {
+          return playAudioBuilder_.getMessage();
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Signal that the client should play an audio clip hosted at a
+     * client-specific URI. Dialogflow uses this to construct
+     * [mixed_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.mixed_audio]. However, Dialogflow itself
+     * does not try to read or process the URI in any way.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio play_audio = 12;</code>
+     */
+    public Builder setPlayAudio(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio value) {
+      if (playAudioBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        message_ = value;
+        onChanged();
+      } else {
+        playAudioBuilder_.setMessage(value);
+      }
+      messageCase_ = 12;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Signal that the client should play an audio clip hosted at a
+     * client-specific URI. Dialogflow uses this to construct
+     * [mixed_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.mixed_audio]. However, Dialogflow itself
+     * does not try to read or process the URI in any way.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio play_audio = 12;</code>
+     */
+    public Builder setPlayAudio(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio.Builder builderForValue) {
+      if (playAudioBuilder_ == null) {
+        message_ = builderForValue.build();
+        onChanged();
+      } else {
+        playAudioBuilder_.setMessage(builderForValue.build());
+      }
+      messageCase_ = 12;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Signal that the client should play an audio clip hosted at a
+     * client-specific URI. Dialogflow uses this to construct
+     * [mixed_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.mixed_audio]. However, Dialogflow itself
+     * does not try to read or process the URI in any way.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio play_audio = 12;</code>
+     */
+    public Builder mergePlayAudio(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio value) {
+      if (playAudioBuilder_ == null) {
+        if (messageCase_ == 12
+            && message_
+                != com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio
+                    .getDefaultInstance()) {
+          message_ =
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio.newBuilder(
+                      (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio) message_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          message_ = value;
+        }
+        onChanged();
+      } else {
+        if (messageCase_ == 12) {
+          playAudioBuilder_.mergeFrom(value);
+        }
+        playAudioBuilder_.setMessage(value);
+      }
+      messageCase_ = 12;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Signal that the client should play an audio clip hosted at a
+     * client-specific URI. Dialogflow uses this to construct
+     * [mixed_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.mixed_audio]. However, Dialogflow itself
+     * does not try to read or process the URI in any way.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio play_audio = 12;</code>
+     */
+    public Builder clearPlayAudio() {
+      if (playAudioBuilder_ == null) {
+        if (messageCase_ == 12) {
+          messageCase_ = 0;
+          message_ = null;
+          onChanged();
+        }
+      } else {
+        if (messageCase_ == 12) {
+          messageCase_ = 0;
+          message_ = null;
+        }
+        playAudioBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Signal that the client should play an audio clip hosted at a
+     * client-specific URI. Dialogflow uses this to construct
+     * [mixed_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.mixed_audio]. However, Dialogflow itself
+     * does not try to read or process the URI in any way.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio play_audio = 12;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio.Builder
+        getPlayAudioBuilder() {
+      return getPlayAudioFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Signal that the client should play an audio clip hosted at a
+     * client-specific URI. Dialogflow uses this to construct
+     * [mixed_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.mixed_audio]. However, Dialogflow itself
+     * does not try to read or process the URI in any way.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio play_audio = 12;</code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudioOrBuilder
+        getPlayAudioOrBuilder() {
+      if ((messageCase_ == 12) && (playAudioBuilder_ != null)) {
+        return playAudioBuilder_.getMessageOrBuilder();
+      } else {
+        if (messageCase_ == 12) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio) message_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Signal that the client should play an audio clip hosted at a
+     * client-specific URI. Dialogflow uses this to construct
+     * [mixed_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.mixed_audio]. However, Dialogflow itself
+     * does not try to read or process the URI in any way.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio play_audio = 12;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudioOrBuilder>
+        getPlayAudioFieldBuilder() {
+      if (playAudioBuilder_ == null) {
+        if (!(messageCase_ == 12)) {
+          message_ =
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio.getDefaultInstance();
+        }
+        playAudioBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudioOrBuilder>(
+                (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio) message_,
+                getParentForChildren(),
+                isClean());
+        message_ = null;
+      }
+      messageCase_ = 12;
+      onChanged();
+      ;
+      return playAudioBuilder_;
+    }
+
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudioOrBuilder>
+        mixedAudioBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Output only. An audio response message composed of both the synthesized Dialogflow
+     * agent responses and responses defined via
+     * [play_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.play_audio].
+     * This message is generated by Dialogflow only and not supposed to be
+     * defined by the user.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio mixed_audio = 13 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     *
+     * @return Whether the mixedAudio field is set.
+     */
+    @java.lang.Override
+    public boolean hasMixedAudio() {
+      return messageCase_ == 13;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. An audio response message composed of both the synthesized Dialogflow
+     * agent responses and responses defined via
+     * [play_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.play_audio].
+     * This message is generated by Dialogflow only and not supposed to be
+     * defined by the user.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio mixed_audio = 13 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     *
+     * @return The mixedAudio.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio getMixedAudio() {
+      if (mixedAudioBuilder_ == null) {
+        if (messageCase_ == 13) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio) message_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio
+            .getDefaultInstance();
+      } else {
+        if (messageCase_ == 13) {
+          return mixedAudioBuilder_.getMessage();
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. An audio response message composed of both the synthesized Dialogflow
+     * agent responses and responses defined via
+     * [play_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.play_audio].
+     * This message is generated by Dialogflow only and not supposed to be
+     * defined by the user.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio mixed_audio = 13 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public Builder setMixedAudio(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio value) {
+      if (mixedAudioBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        message_ = value;
+        onChanged();
+      } else {
+        mixedAudioBuilder_.setMessage(value);
+      }
+      messageCase_ = 13;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. An audio response message composed of both the synthesized Dialogflow
+     * agent responses and responses defined via
+     * [play_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.play_audio].
+     * This message is generated by Dialogflow only and not supposed to be
+     * defined by the user.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio mixed_audio = 13 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public Builder setMixedAudio(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Builder builderForValue) {
+      if (mixedAudioBuilder_ == null) {
+        message_ = builderForValue.build();
+        onChanged();
+      } else {
+        mixedAudioBuilder_.setMessage(builderForValue.build());
+      }
+      messageCase_ = 13;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. An audio response message composed of both the synthesized Dialogflow
+     * agent responses and responses defined via
+     * [play_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.play_audio].
+     * This message is generated by Dialogflow only and not supposed to be
+     * defined by the user.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio mixed_audio = 13 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public Builder mergeMixedAudio(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio value) {
+      if (mixedAudioBuilder_ == null) {
+        if (messageCase_ == 13
+            && message_
+                != com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio
+                    .getDefaultInstance()) {
+          message_ =
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.newBuilder(
+                      (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio) message_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          message_ = value;
+        }
+        onChanged();
+      } else {
+        if (messageCase_ == 13) {
+          mixedAudioBuilder_.mergeFrom(value);
+        }
+        mixedAudioBuilder_.setMessage(value);
+      }
+      messageCase_ = 13;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. An audio response message composed of both the synthesized Dialogflow
+     * agent responses and responses defined via
+     * [play_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.play_audio].
+     * This message is generated by Dialogflow only and not supposed to be
+     * defined by the user.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio mixed_audio = 13 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public Builder clearMixedAudio() {
+      if (mixedAudioBuilder_ == null) {
+        if (messageCase_ == 13) {
+          messageCase_ = 0;
+          message_ = null;
+          onChanged();
+        }
+      } else {
+        if (messageCase_ == 13) {
+          messageCase_ = 0;
+          message_ = null;
+        }
+        mixedAudioBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. An audio response message composed of both the synthesized Dialogflow
+     * agent responses and responses defined via
+     * [play_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.play_audio].
+     * This message is generated by Dialogflow only and not supposed to be
+     * defined by the user.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio mixed_audio = 13 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Builder
+        getMixedAudioBuilder() {
+      return getMixedAudioFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. An audio response message composed of both the synthesized Dialogflow
+     * agent responses and responses defined via
+     * [play_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.play_audio].
+     * This message is generated by Dialogflow only and not supposed to be
+     * defined by the user.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio mixed_audio = 13 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudioOrBuilder
+        getMixedAudioOrBuilder() {
+      if ((messageCase_ == 13) && (mixedAudioBuilder_ != null)) {
+        return mixedAudioBuilder_.getMessageOrBuilder();
+      } else {
+        if (messageCase_ == 13) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio) message_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. An audio response message composed of both the synthesized Dialogflow
+     * agent responses and responses defined via
+     * [play_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.play_audio].
+     * This message is generated by Dialogflow only and not supposed to be
+     * defined by the user.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio mixed_audio = 13 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudioOrBuilder>
+        getMixedAudioFieldBuilder() {
+      if (mixedAudioBuilder_ == null) {
+        if (!(messageCase_ == 13)) {
+          message_ =
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio
+                  .getDefaultInstance();
+        }
+        mixedAudioBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudioOrBuilder>(
+                (com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio) message_,
+                getParentForChildren(),
+                isClean());
+        message_ = null;
+      }
+      messageCase_ = 13;
+      onChanged();
+      ;
+      return mixedAudioBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.ResponseMessage)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.ResponseMessage)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ResponseMessage> PARSER =
+      new com.google.protobuf.AbstractParser<ResponseMessage>() {
+        @java.lang.Override
+        public ResponseMessage parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ResponseMessage(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<ResponseMessage> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ResponseMessage> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ResponseMessageOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ResponseMessageOrBuilder.java
new file mode 100644
index 000000000..2e6687971
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ResponseMessageOrBuilder.java
@@ -0,0 +1,427 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/response_message.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface ResponseMessageOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.ResponseMessage)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Returns a text response.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text text = 1;</code>
+   *
+   * @return Whether the text field is set.
+   */
+  boolean hasText();
+  /**
+   *
+   *
+   * <pre>
+   * Returns a text response.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text text = 1;</code>
+   *
+   * @return The text.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text getText();
+  /**
+   *
+   *
+   * <pre>
+   * Returns a text response.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Text text = 1;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.TextOrBuilder getTextOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Returns a response containing a custom, platform-specific payload.
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 2;</code>
+   *
+   * @return Whether the payload field is set.
+   */
+  boolean hasPayload();
+  /**
+   *
+   *
+   * <pre>
+   * Returns a response containing a custom, platform-specific payload.
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 2;</code>
+   *
+   * @return The payload.
+   */
+  com.google.protobuf.Struct getPayload();
+  /**
+   *
+   *
+   * <pre>
+   * Returns a response containing a custom, platform-specific payload.
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 2;</code>
+   */
+  com.google.protobuf.StructOrBuilder getPayloadOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Hands off conversation to a human agent.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff human_agent_handoff = 6 [deprecated = true];
+   * </code>
+   *
+   * @return Whether the humanAgentHandoff field is set.
+   */
+  @java.lang.Deprecated
+  boolean hasHumanAgentHandoff();
+  /**
+   *
+   *
+   * <pre>
+   * Hands off conversation to a human agent.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff human_agent_handoff = 6 [deprecated = true];
+   * </code>
+   *
+   * @return The humanAgentHandoff.
+   */
+  @java.lang.Deprecated
+  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff getHumanAgentHandoff();
+  /**
+   *
+   *
+   * <pre>
+   * Hands off conversation to a human agent.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoff human_agent_handoff = 6 [deprecated = true];
+   * </code>
+   */
+  @java.lang.Deprecated
+  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.HumanAgentHandoffOrBuilder
+      getHumanAgentHandoffOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Indicates that the conversation succeeded.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess conversation_success = 9;
+   * </code>
+   *
+   * @return Whether the conversationSuccess field is set.
+   */
+  boolean hasConversationSuccess();
+  /**
+   *
+   *
+   * <pre>
+   * Indicates that the conversation succeeded.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess conversation_success = 9;
+   * </code>
+   *
+   * @return The conversationSuccess.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess
+      getConversationSuccess();
+  /**
+   *
+   *
+   * <pre>
+   * Indicates that the conversation succeeded.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess conversation_success = 9;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccessOrBuilder
+      getConversationSuccessOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * A text or ssml response that is preferentially used for TTS output audio
+   * synthesis, as described in the comment on the ResponseMessage message.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText output_audio_text = 8;
+   * </code>
+   *
+   * @return Whether the outputAudioText field is set.
+   */
+  boolean hasOutputAudioText();
+  /**
+   *
+   *
+   * <pre>
+   * A text or ssml response that is preferentially used for TTS output audio
+   * synthesis, as described in the comment on the ResponseMessage message.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText output_audio_text = 8;
+   * </code>
+   *
+   * @return The outputAudioText.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText getOutputAudioText();
+  /**
+   *
+   *
+   * <pre>
+   * A text or ssml response that is preferentially used for TTS output audio
+   * synthesis, as described in the comment on the ResponseMessage message.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioText output_audio_text = 8;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.OutputAudioTextOrBuilder
+      getOutputAudioTextOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Hands off conversation to a human agent.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff live_agent_handoff = 10;
+   * </code>
+   *
+   * @return Whether the liveAgentHandoff field is set.
+   */
+  boolean hasLiveAgentHandoff();
+  /**
+   *
+   *
+   * <pre>
+   * Hands off conversation to a human agent.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff live_agent_handoff = 10;
+   * </code>
+   *
+   * @return The liveAgentHandoff.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff getLiveAgentHandoff();
+  /**
+   *
+   *
+   * <pre>
+   * Hands off conversation to a human agent.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoff live_agent_handoff = 10;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.LiveAgentHandoffOrBuilder
+      getLiveAgentHandoffOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Output only. A signal that indicates the interaction with the Dialogflow agent has
+   * ended.
+   * This message is generated by Dialogflow only when the conversation
+   * reaches `END_SESSION` or `END_PAGE` page. It is not supposed to be
+   * defined by the user.
+   * It's guaranteed that there is at most one such message in each response.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction end_interaction = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return Whether the endInteraction field is set.
+   */
+  boolean hasEndInteraction();
+  /**
+   *
+   *
+   * <pre>
+   * Output only. A signal that indicates the interaction with the Dialogflow agent has
+   * ended.
+   * This message is generated by Dialogflow only when the conversation
+   * reaches `END_SESSION` or `END_PAGE` page. It is not supposed to be
+   * defined by the user.
+   * It's guaranteed that there is at most one such message in each response.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction end_interaction = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return The endInteraction.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction getEndInteraction();
+  /**
+   *
+   *
+   * <pre>
+   * Output only. A signal that indicates the interaction with the Dialogflow agent has
+   * ended.
+   * This message is generated by Dialogflow only when the conversation
+   * reaches `END_SESSION` or `END_PAGE` page. It is not supposed to be
+   * defined by the user.
+   * It's guaranteed that there is at most one such message in each response.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteraction end_interaction = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.EndInteractionOrBuilder
+      getEndInteractionOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Signal that the client should play an audio clip hosted at a
+   * client-specific URI. Dialogflow uses this to construct
+   * [mixed_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.mixed_audio]. However, Dialogflow itself
+   * does not try to read or process the URI in any way.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio play_audio = 12;</code>
+   *
+   * @return Whether the playAudio field is set.
+   */
+  boolean hasPlayAudio();
+  /**
+   *
+   *
+   * <pre>
+   * Signal that the client should play an audio clip hosted at a
+   * client-specific URI. Dialogflow uses this to construct
+   * [mixed_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.mixed_audio]. However, Dialogflow itself
+   * does not try to read or process the URI in any way.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio play_audio = 12;</code>
+   *
+   * @return The playAudio.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio getPlayAudio();
+  /**
+   *
+   *
+   * <pre>
+   * Signal that the client should play an audio clip hosted at a
+   * client-specific URI. Dialogflow uses this to construct
+   * [mixed_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.mixed_audio]. However, Dialogflow itself
+   * does not try to read or process the URI in any way.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudio play_audio = 12;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.PlayAudioOrBuilder getPlayAudioOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Output only. An audio response message composed of both the synthesized Dialogflow
+   * agent responses and responses defined via
+   * [play_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.play_audio].
+   * This message is generated by Dialogflow only and not supposed to be
+   * defined by the user.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio mixed_audio = 13 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return Whether the mixedAudio field is set.
+   */
+  boolean hasMixedAudio();
+  /**
+   *
+   *
+   * <pre>
+   * Output only. An audio response message composed of both the synthesized Dialogflow
+   * agent responses and responses defined via
+   * [play_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.play_audio].
+   * This message is generated by Dialogflow only and not supposed to be
+   * defined by the user.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio mixed_audio = 13 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return The mixedAudio.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio getMixedAudio();
+  /**
+   *
+   *
+   * <pre>
+   * Output only. An audio response message composed of both the synthesized Dialogflow
+   * agent responses and responses defined via
+   * [play_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.play_audio].
+   * This message is generated by Dialogflow only and not supposed to be
+   * defined by the user.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudio mixed_audio = 13 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MixedAudioOrBuilder
+      getMixedAudioOrBuilder();
+
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.MessageCase getMessageCase();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ResponseMessageProto.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ResponseMessageProto.java
new file mode 100644
index 000000000..ede4b546f
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ResponseMessageProto.java
@@ -0,0 +1,250 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/response_message.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public final class ResponseMessageProto {
+  private ResponseMessageProto() {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistryLite registry) {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions((com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_Text_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_Text_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_HumanAgentHandoff_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_HumanAgentHandoff_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_LiveAgentHandoff_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_LiveAgentHandoff_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_ConversationSuccess_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_ConversationSuccess_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_PlayAudio_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_PlayAudio_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_OutputAudioText_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_OutputAudioText_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_EndInteraction_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_EndInteraction_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_MixedAudio_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_MixedAudio_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_MixedAudio_Segment_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_MixedAudio_Segment_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
+    return descriptor;
+  }
+
+  private static com.google.protobuf.Descriptors.FileDescriptor descriptor;
+
+  static {
+    java.lang.String[] descriptorData = {
+      "\n9google/cloud/dialogflow/cx/v3beta1/res"
+          + "ponse_message.proto\022\"google.cloud.dialog"
+          + "flow.cx.v3beta1\032\037google/api/field_behavi"
+          + "or.proto\032\034google/protobuf/struct.proto\032\034"
+          + "google/api/annotations.proto\"\242\013\n\017Respons"
+          + "eMessage\022H\n\004text\030\001 \001(\01328.google.cloud.di"
+          + "alogflow.cx.v3beta1.ResponseMessage.Text"
+          + "H\000\022*\n\007payload\030\002 \001(\0132\027.google.protobuf.St"
+          + "ructH\000\022h\n\023human_agent_handoff\030\006 \001(\0132E.go"
+          + "ogle.cloud.dialogflow.cx.v3beta1.Respons"
+          + "eMessage.HumanAgentHandoffB\002\030\001H\000\022g\n\024conv"
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+          + "ersationSuccessH\000\022`\n\021output_audio_text\030\010"
+          + " \001(\0132C.google.cloud.dialogflow.cx.v3beta"
+          + "1.ResponseMessage.OutputAudioTextH\000\022b\n\022l"
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+          + "ialogflow.cx.v3beta1.ResponseMessage.Liv"
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+          + "sponseMessage.EndInteractionB\003\340A\003H\000\022S\n\np"
+          + "lay_audio\030\014 \001(\0132=.google.cloud.dialogflo"
+          + "w.cx.v3beta1.ResponseMessage.PlayAudioH\000"
+          + "\022Z\n\013mixed_audio\030\r \001(\0132>.google.cloud.dia"
+          + "logflow.cx.v3beta1.ResponseMessage.Mixed"
+          + "AudioB\003\340A\003H\000\032>\n\004Text\022\021\n\004text\030\001 \003(\tB\003\340A\002\022"
+          + "#\n\033allow_playback_interruption\030\002 \001(\010\032B\n\021"
+          + "HumanAgentHandoff\022)\n\010metadata\030\001 \001(\0132\027.go"
+          + "ogle.protobuf.Struct:\002\030\001\032=\n\020LiveAgentHan"
+          + "doff\022)\n\010metadata\030\001 \001(\0132\027.google.protobuf"
+          + ".Struct\032@\n\023ConversationSuccess\022)\n\010metada"
+          + "ta\030\001 \001(\0132\027.google.protobuf.Struct\032H\n\tPla"
+          + "yAudio\022\026\n\taudio_uri\030\001 \001(\tB\003\340A\002\022#\n\033allow_"
+          + "playback_interruption\030\002 \001(\010\032;\n\017OutputAud"
+          + "ioText\022\016\n\004text\030\001 \001(\tH\000\022\016\n\004ssml\030\002 \001(\tH\000B\010"
+          + "\n\006source\032\020\n\016EndInteraction\032\301\001\n\nMixedAudi"
+          + "o\022X\n\010segments\030\001 \003(\0132F.google.cloud.dialo"
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+          + "dio.Segment\032Y\n\007Segment\022\017\n\005audio\030\001 \001(\014H\000\022"
+          + "\r\n\003uri\030\002 \001(\tH\000\022#\n\033allow_playback_interru"
+          + "ption\030\003 \001(\010B\t\n\007contentB\t\n\007messageB\263\001\n&co"
+          + "m.google.cloud.dialogflow.cx.v3beta1B\024Re"
+          + "sponseMessageProtoP\001ZDgoogle.golang.org/"
+          + "genproto/googleapis/cloud/dialogflow/cx/"
+          + "v3beta1;cx\370\001\001\242\002\002DF\252\002\"Google.Cloud.Dialog"
+          + "flow.Cx.V3Beta1b\006proto3"
+    };
+    descriptor =
+        com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
+            descriptorData,
+            new com.google.protobuf.Descriptors.FileDescriptor[] {
+              com.google.api.FieldBehaviorProto.getDescriptor(),
+              com.google.protobuf.StructProto.getDescriptor(),
+              com.google.api.AnnotationsProto.getDescriptor(),
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_descriptor =
+        getDescriptor().getMessageTypes().get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_descriptor,
+            new java.lang.String[] {
+              "Text",
+              "Payload",
+              "HumanAgentHandoff",
+              "ConversationSuccess",
+              "OutputAudioText",
+              "LiveAgentHandoff",
+              "EndInteraction",
+              "PlayAudio",
+              "MixedAudio",
+              "Message",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_Text_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_Text_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_Text_descriptor,
+            new java.lang.String[] {
+              "Text", "AllowPlaybackInterruption",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_HumanAgentHandoff_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_descriptor
+            .getNestedTypes()
+            .get(1);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_HumanAgentHandoff_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_HumanAgentHandoff_descriptor,
+            new java.lang.String[] {
+              "Metadata",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_LiveAgentHandoff_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_descriptor
+            .getNestedTypes()
+            .get(2);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_LiveAgentHandoff_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_LiveAgentHandoff_descriptor,
+            new java.lang.String[] {
+              "Metadata",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_ConversationSuccess_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_descriptor
+            .getNestedTypes()
+            .get(3);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_ConversationSuccess_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_ConversationSuccess_descriptor,
+            new java.lang.String[] {
+              "Metadata",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_PlayAudio_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_descriptor
+            .getNestedTypes()
+            .get(4);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_PlayAudio_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_PlayAudio_descriptor,
+            new java.lang.String[] {
+              "AudioUri", "AllowPlaybackInterruption",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_OutputAudioText_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_descriptor
+            .getNestedTypes()
+            .get(5);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_OutputAudioText_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_OutputAudioText_descriptor,
+            new java.lang.String[] {
+              "Text", "Ssml", "Source",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_EndInteraction_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_descriptor
+            .getNestedTypes()
+            .get(6);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_EndInteraction_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_EndInteraction_descriptor,
+            new java.lang.String[] {});
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_MixedAudio_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_descriptor
+            .getNestedTypes()
+            .get(7);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_MixedAudio_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_MixedAudio_descriptor,
+            new java.lang.String[] {
+              "Segments",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_MixedAudio_Segment_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_MixedAudio_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_MixedAudio_Segment_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ResponseMessage_MixedAudio_Segment_descriptor,
+            new java.lang.String[] {
+              "Audio", "Uri", "AllowPlaybackInterruption", "Content",
+            });
+    com.google.protobuf.ExtensionRegistry registry =
+        com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
+    com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
+        descriptor, registry);
+    com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.protobuf.StructProto.getDescriptor();
+    com.google.api.AnnotationsProto.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/RestoreAgentRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/RestoreAgentRequest.java
new file mode 100644
index 000000000..ea4141050
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/RestoreAgentRequest.java
@@ -0,0 +1,1063 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Agents.RestoreAgent][google.cloud.dialogflow.cx.v3beta1.Agents.RestoreAgent].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest}
+ */
+public final class RestoreAgentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest)
+    RestoreAgentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use RestoreAgentRequest.newBuilder() to construct.
+  private RestoreAgentRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private RestoreAgentRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new RestoreAgentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private RestoreAgentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+              agentCase_ = 2;
+              agent_ = s;
+              break;
+            }
+          case 26:
+            {
+              agentCase_ = 3;
+              agent_ = input.readBytes();
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_RestoreAgentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_RestoreAgentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest.Builder.class);
+  }
+
+  private int agentCase_ = 0;
+  private java.lang.Object agent_;
+
+  public enum AgentCase
+      implements
+          com.google.protobuf.Internal.EnumLite,
+          com.google.protobuf.AbstractMessage.InternalOneOfEnum {
+    AGENT_URI(2),
+    AGENT_CONTENT(3),
+    AGENT_NOT_SET(0);
+    private final int value;
+
+    private AgentCase(int value) {
+      this.value = value;
+    }
+    /**
+     * @param value The number of the enum to look for.
+     * @return The enum associated with the given number.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static AgentCase valueOf(int value) {
+      return forNumber(value);
+    }
+
+    public static AgentCase forNumber(int value) {
+      switch (value) {
+        case 2:
+          return AGENT_URI;
+        case 3:
+          return AGENT_CONTENT;
+        case 0:
+          return AGENT_NOT_SET;
+        default:
+          return null;
+      }
+    }
+
+    public int getNumber() {
+      return this.value;
+    }
+  };
+
+  public AgentCase getAgentCase() {
+    return AgentCase.forNumber(agentCase_);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the agent to restore into.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the agent to restore into.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int AGENT_URI_FIELD_NUMBER = 2;
+  /**
+   *
+   *
+   * <pre>
+   * The [Google Cloud Storage](https://cloud.google.com/storage/docs/) URI
+   * to restore agent from. The format of this URI must be
+   * `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
+   * </pre>
+   *
+   * <code>string agent_uri = 2;</code>
+   *
+   * @return The agentUri.
+   */
+  public java.lang.String getAgentUri() {
+    java.lang.Object ref = "";
+    if (agentCase_ == 2) {
+      ref = agent_;
+    }
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      if (agentCase_ == 2) {
+        agent_ = s;
+      }
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The [Google Cloud Storage](https://cloud.google.com/storage/docs/) URI
+   * to restore agent from. The format of this URI must be
+   * `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
+   * </pre>
+   *
+   * <code>string agent_uri = 2;</code>
+   *
+   * @return The bytes for agentUri.
+   */
+  public com.google.protobuf.ByteString getAgentUriBytes() {
+    java.lang.Object ref = "";
+    if (agentCase_ == 2) {
+      ref = agent_;
+    }
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      if (agentCase_ == 2) {
+        agent_ = b;
+      }
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int AGENT_CONTENT_FIELD_NUMBER = 3;
+  /**
+   *
+   *
+   * <pre>
+   * Uncompressed raw byte content for agent.
+   * </pre>
+   *
+   * <code>bytes agent_content = 3;</code>
+   *
+   * @return The agentContent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getAgentContent() {
+    if (agentCase_ == 3) {
+      return (com.google.protobuf.ByteString) agent_;
+    }
+    return com.google.protobuf.ByteString.EMPTY;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (agentCase_ == 2) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, agent_);
+    }
+    if (agentCase_ == 3) {
+      output.writeBytes(3, (com.google.protobuf.ByteString) agent_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (agentCase_ == 2) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, agent_);
+    }
+    if (agentCase_ == 3) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeBytesSize(
+              3, (com.google.protobuf.ByteString) agent_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!getAgentCase().equals(other.getAgentCase())) return false;
+    switch (agentCase_) {
+      case 2:
+        if (!getAgentUri().equals(other.getAgentUri())) return false;
+        break;
+      case 3:
+        if (!getAgentContent().equals(other.getAgentContent())) return false;
+        break;
+      case 0:
+      default:
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    switch (agentCase_) {
+      case 2:
+        hash = (37 * hash) + AGENT_URI_FIELD_NUMBER;
+        hash = (53 * hash) + getAgentUri().hashCode();
+        break;
+      case 3:
+        hash = (37 * hash) + AGENT_CONTENT_FIELD_NUMBER;
+        hash = (53 * hash) + getAgentContent().hashCode();
+        break;
+      case 0:
+      default:
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Agents.RestoreAgent][google.cloud.dialogflow.cx.v3beta1.Agents.RestoreAgent].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_RestoreAgentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_RestoreAgentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      agentCase_ = 0;
+      agent_ = null;
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_RestoreAgentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest(this);
+      result.name_ = name_;
+      if (agentCase_ == 2) {
+        result.agent_ = agent_;
+      }
+      if (agentCase_ == 3) {
+        result.agent_ = agent_;
+      }
+      result.agentCase_ = agentCase_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      switch (other.getAgentCase()) {
+        case AGENT_URI:
+          {
+            agentCase_ = 2;
+            agent_ = other.agent_;
+            onChanged();
+            break;
+          }
+        case AGENT_CONTENT:
+          {
+            setAgentContent(other.getAgentContent());
+            break;
+          }
+        case AGENT_NOT_SET:
+          {
+            break;
+          }
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int agentCase_ = 0;
+    private java.lang.Object agent_;
+
+    public AgentCase getAgentCase() {
+      return AgentCase.forNumber(agentCase_);
+    }
+
+    public Builder clearAgent() {
+      agentCase_ = 0;
+      agent_ = null;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the agent to restore into.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the agent to restore into.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the agent to restore into.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the agent to restore into.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The name of the agent to restore into.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * The [Google Cloud Storage](https://cloud.google.com/storage/docs/) URI
+     * to restore agent from. The format of this URI must be
+     * `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
+     * </pre>
+     *
+     * <code>string agent_uri = 2;</code>
+     *
+     * @return The agentUri.
+     */
+    @java.lang.Override
+    public java.lang.String getAgentUri() {
+      java.lang.Object ref = "";
+      if (agentCase_ == 2) {
+        ref = agent_;
+      }
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (agentCase_ == 2) {
+          agent_ = s;
+        }
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The [Google Cloud Storage](https://cloud.google.com/storage/docs/) URI
+     * to restore agent from. The format of this URI must be
+     * `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
+     * </pre>
+     *
+     * <code>string agent_uri = 2;</code>
+     *
+     * @return The bytes for agentUri.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getAgentUriBytes() {
+      java.lang.Object ref = "";
+      if (agentCase_ == 2) {
+        ref = agent_;
+      }
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        if (agentCase_ == 2) {
+          agent_ = b;
+        }
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The [Google Cloud Storage](https://cloud.google.com/storage/docs/) URI
+     * to restore agent from. The format of this URI must be
+     * `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
+     * </pre>
+     *
+     * <code>string agent_uri = 2;</code>
+     *
+     * @param value The agentUri to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAgentUri(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      agentCase_ = 2;
+      agent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The [Google Cloud Storage](https://cloud.google.com/storage/docs/) URI
+     * to restore agent from. The format of this URI must be
+     * `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
+     * </pre>
+     *
+     * <code>string agent_uri = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearAgentUri() {
+      if (agentCase_ == 2) {
+        agentCase_ = 0;
+        agent_ = null;
+        onChanged();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The [Google Cloud Storage](https://cloud.google.com/storage/docs/) URI
+     * to restore agent from. The format of this URI must be
+     * `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
+     * </pre>
+     *
+     * <code>string agent_uri = 2;</code>
+     *
+     * @param value The bytes for agentUri to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAgentUriBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      agentCase_ = 2;
+      agent_ = value;
+      onChanged();
+      return this;
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Uncompressed raw byte content for agent.
+     * </pre>
+     *
+     * <code>bytes agent_content = 3;</code>
+     *
+     * @return The agentContent.
+     */
+    public com.google.protobuf.ByteString getAgentContent() {
+      if (agentCase_ == 3) {
+        return (com.google.protobuf.ByteString) agent_;
+      }
+      return com.google.protobuf.ByteString.EMPTY;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Uncompressed raw byte content for agent.
+     * </pre>
+     *
+     * <code>bytes agent_content = 3;</code>
+     *
+     * @param value The agentContent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAgentContent(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      agentCase_ = 3;
+      agent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Uncompressed raw byte content for agent.
+     * </pre>
+     *
+     * <code>bytes agent_content = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearAgentContent() {
+      if (agentCase_ == 3) {
+        agentCase_ = 0;
+        agent_ = null;
+        onChanged();
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<RestoreAgentRequest> PARSER =
+      new com.google.protobuf.AbstractParser<RestoreAgentRequest>() {
+        @java.lang.Override
+        public RestoreAgentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new RestoreAgentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<RestoreAgentRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<RestoreAgentRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/RestoreAgentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/RestoreAgentRequestOrBuilder.java
new file mode 100644
index 000000000..8ed3e2c97
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/RestoreAgentRequestOrBuilder.java
@@ -0,0 +1,100 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface RestoreAgentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the agent to restore into.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The name of the agent to restore into.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The [Google Cloud Storage](https://cloud.google.com/storage/docs/) URI
+   * to restore agent from. The format of this URI must be
+   * `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
+   * </pre>
+   *
+   * <code>string agent_uri = 2;</code>
+   *
+   * @return The agentUri.
+   */
+  java.lang.String getAgentUri();
+  /**
+   *
+   *
+   * <pre>
+   * The [Google Cloud Storage](https://cloud.google.com/storage/docs/) URI
+   * to restore agent from. The format of this URI must be
+   * `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
+   * </pre>
+   *
+   * <code>string agent_uri = 2;</code>
+   *
+   * @return The bytes for agentUri.
+   */
+  com.google.protobuf.ByteString getAgentUriBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Uncompressed raw byte content for agent.
+   * </pre>
+   *
+   * <code>bytes agent_content = 3;</code>
+   *
+   * @return The agentContent.
+   */
+  com.google.protobuf.ByteString getAgentContent();
+
+  public com.google.cloud.dialogflow.cx.v3beta1.RestoreAgentRequest.AgentCase getAgentCase();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityType.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityType.java
new file mode 100644
index 000000000..f6490a028
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityType.java
@@ -0,0 +1,1621 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Session entity types are referred to as **User** entity types and are
+ * entities that are built for an individual user such as favorites,
+ * preferences, playlists, and so on.
+ * You can redefine a session entity type at the session level to extend or
+ * replace a [custom entity type][google.cloud.dialogflow.cx.v3beta1.EntityType] at the user session level (we
+ * refer to the entity types defined at the agent level as "custom entity
+ * types").
+ * Note: session entity types apply to all queries, regardless of the language.
+ * For more information about entity types, see the [Dialogflow
+ * documentation](https://cloud.google.com/dialogflow/docs/entities-overview).
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.SessionEntityType}
+ */
+public final class SessionEntityType extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.SessionEntityType)
+    SessionEntityTypeOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use SessionEntityType.newBuilder() to construct.
+  private SessionEntityType(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private SessionEntityType() {
+    name_ = "";
+    entityOverrideMode_ = 0;
+    entities_ = java.util.Collections.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new SessionEntityType();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private SessionEntityType(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 24:
+            {
+              int rawValue = input.readEnum();
+
+              entityOverrideMode_ = rawValue;
+              break;
+            }
+          case 34:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                entities_ =
+                    new java.util.ArrayList<
+                        com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              entities_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.parser(),
+                      extensionRegistry));
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        entities_ = java.util.Collections.unmodifiableList(entities_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_SessionEntityType_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_SessionEntityType_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.class,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder.class);
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * The types of modifications for the session entity type.
+   * </pre>
+   *
+   * Protobuf enum {@code google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode}
+   */
+  public enum EntityOverrideMode implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     *
+     *
+     * <pre>
+     * Not specified. This value should be never used.
+     * </pre>
+     *
+     * <code>ENTITY_OVERRIDE_MODE_UNSPECIFIED = 0;</code>
+     */
+    ENTITY_OVERRIDE_MODE_UNSPECIFIED(0),
+    /**
+     *
+     *
+     * <pre>
+     * The collection of session entities overrides the collection of entities
+     * in the corresponding custom entity type.
+     * </pre>
+     *
+     * <code>ENTITY_OVERRIDE_MODE_OVERRIDE = 1;</code>
+     */
+    ENTITY_OVERRIDE_MODE_OVERRIDE(1),
+    /**
+     *
+     *
+     * <pre>
+     * The collection of session entities extends the collection of entities in
+     * the corresponding custom entity type.
+     * Note: Even in this override mode calls to `ListSessionEntityTypes`,
+     * `GetSessionEntityType`, `CreateSessionEntityType` and
+     * `UpdateSessionEntityType` only return the additional entities added in
+     * this session entity type. If you want to get the supplemented list,
+     * please call [EntityTypes.GetEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.GetEntityType] on the custom entity type
+     * and merge.
+     * </pre>
+     *
+     * <code>ENTITY_OVERRIDE_MODE_SUPPLEMENT = 2;</code>
+     */
+    ENTITY_OVERRIDE_MODE_SUPPLEMENT(2),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     *
+     *
+     * <pre>
+     * Not specified. This value should be never used.
+     * </pre>
+     *
+     * <code>ENTITY_OVERRIDE_MODE_UNSPECIFIED = 0;</code>
+     */
+    public static final int ENTITY_OVERRIDE_MODE_UNSPECIFIED_VALUE = 0;
+    /**
+     *
+     *
+     * <pre>
+     * The collection of session entities overrides the collection of entities
+     * in the corresponding custom entity type.
+     * </pre>
+     *
+     * <code>ENTITY_OVERRIDE_MODE_OVERRIDE = 1;</code>
+     */
+    public static final int ENTITY_OVERRIDE_MODE_OVERRIDE_VALUE = 1;
+    /**
+     *
+     *
+     * <pre>
+     * The collection of session entities extends the collection of entities in
+     * the corresponding custom entity type.
+     * Note: Even in this override mode calls to `ListSessionEntityTypes`,
+     * `GetSessionEntityType`, `CreateSessionEntityType` and
+     * `UpdateSessionEntityType` only return the additional entities added in
+     * this session entity type. If you want to get the supplemented list,
+     * please call [EntityTypes.GetEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.GetEntityType] on the custom entity type
+     * and merge.
+     * </pre>
+     *
+     * <code>ENTITY_OVERRIDE_MODE_SUPPLEMENT = 2;</code>
+     */
+    public static final int ENTITY_OVERRIDE_MODE_SUPPLEMENT_VALUE = 2;
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static EntityOverrideMode valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static EntityOverrideMode forNumber(int value) {
+      switch (value) {
+        case 0:
+          return ENTITY_OVERRIDE_MODE_UNSPECIFIED;
+        case 1:
+          return ENTITY_OVERRIDE_MODE_OVERRIDE;
+        case 2:
+          return ENTITY_OVERRIDE_MODE_SUPPLEMENT;
+        default:
+          return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap<EntityOverrideMode>
+        internalGetValueMap() {
+      return internalValueMap;
+    }
+
+    private static final com.google.protobuf.Internal.EnumLiteMap<EntityOverrideMode>
+        internalValueMap =
+            new com.google.protobuf.Internal.EnumLiteMap<EntityOverrideMode>() {
+              public EntityOverrideMode findValueByNumber(int number) {
+                return EntityOverrideMode.forNumber(number);
+              }
+            };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+
+    public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+      return getDescriptor();
+    }
+
+    public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.getDescriptor()
+          .getEnumTypes()
+          .get(0);
+    }
+
+    private static final EntityOverrideMode[] VALUES = values();
+
+    public static EntityOverrideMode valueOf(
+        com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private EntityOverrideMode(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode)
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The unique identifier of the session entity type.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+   * ID&gt;/agents/&lt;Agent ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type
+   * ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The unique identifier of the session entity type.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+   * ID&gt;/agents/&lt;Agent ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type
+   * ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int ENTITY_OVERRIDE_MODE_FIELD_NUMBER = 3;
+  private int entityOverrideMode_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. Indicates whether the additional data should override or supplement the
+   * custom entity type definition.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode entity_override_mode = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The enum numeric value on the wire for entityOverrideMode.
+   */
+  @java.lang.Override
+  public int getEntityOverrideModeValue() {
+    return entityOverrideMode_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. Indicates whether the additional data should override or supplement the
+   * custom entity type definition.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode entity_override_mode = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The entityOverrideMode.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode
+      getEntityOverrideMode() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode result =
+        com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode.valueOf(
+            entityOverrideMode_);
+    return result == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode.UNRECOGNIZED
+        : result;
+  }
+
+  public static final int ENTITIES_FIELD_NUMBER = 4;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity> entities_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The collection of entities to override or supplement the custom entity
+   * type.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity>
+      getEntitiesList() {
+    return entities_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The collection of entities to override or supplement the custom entity
+   * type.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.EntityType.EntityOrBuilder>
+      getEntitiesOrBuilderList() {
+    return entities_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The collection of entities to override or supplement the custom entity
+   * type.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public int getEntitiesCount() {
+    return entities_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The collection of entities to override or supplement the custom entity
+   * type.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity getEntities(int index) {
+    return entities_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The collection of entities to override or supplement the custom entity
+   * type.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.EntityType.EntityOrBuilder getEntitiesOrBuilder(
+      int index) {
+    return entities_.get(index);
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (entityOverrideMode_
+        != com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode
+            .ENTITY_OVERRIDE_MODE_UNSPECIFIED
+            .getNumber()) {
+      output.writeEnum(3, entityOverrideMode_);
+    }
+    for (int i = 0; i < entities_.size(); i++) {
+      output.writeMessage(4, entities_.get(i));
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (entityOverrideMode_
+        != com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode
+            .ENTITY_OVERRIDE_MODE_UNSPECIFIED
+            .getNumber()) {
+      size += com.google.protobuf.CodedOutputStream.computeEnumSize(3, entityOverrideMode_);
+    }
+    for (int i = 0; i < entities_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, entities_.get(i));
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType other =
+        (com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (entityOverrideMode_ != other.entityOverrideMode_) return false;
+    if (!getEntitiesList().equals(other.getEntitiesList())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + ENTITY_OVERRIDE_MODE_FIELD_NUMBER;
+    hash = (53 * hash) + entityOverrideMode_;
+    if (getEntitiesCount() > 0) {
+      hash = (37 * hash) + ENTITIES_FIELD_NUMBER;
+      hash = (53 * hash) + getEntitiesList().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Session entity types are referred to as **User** entity types and are
+   * entities that are built for an individual user such as favorites,
+   * preferences, playlists, and so on.
+   * You can redefine a session entity type at the session level to extend or
+   * replace a [custom entity type][google.cloud.dialogflow.cx.v3beta1.EntityType] at the user session level (we
+   * refer to the entity types defined at the agent level as "custom entity
+   * types").
+   * Note: session entity types apply to all queries, regardless of the language.
+   * For more information about entity types, see the [Dialogflow
+   * documentation](https://cloud.google.com/dialogflow/docs/entities-overview).
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.SessionEntityType}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.SessionEntityType)
+      com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_SessionEntityType_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_SessionEntityType_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.class,
+              com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getEntitiesFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      entityOverrideMode_ = 0;
+
+      if (entitiesBuilder_ == null) {
+        entities_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        entitiesBuilder_.clear();
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_SessionEntityType_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType build() {
+      com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType result =
+          new com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType(this);
+      int from_bitField0_ = bitField0_;
+      result.name_ = name_;
+      result.entityOverrideMode_ = entityOverrideMode_;
+      if (entitiesBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          entities_ = java.util.Collections.unmodifiableList(entities_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.entities_ = entities_;
+      } else {
+        result.entities_ = entitiesBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (other.entityOverrideMode_ != 0) {
+        setEntityOverrideModeValue(other.getEntityOverrideModeValue());
+      }
+      if (entitiesBuilder_ == null) {
+        if (!other.entities_.isEmpty()) {
+          if (entities_.isEmpty()) {
+            entities_ = other.entities_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureEntitiesIsMutable();
+            entities_.addAll(other.entities_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.entities_.isEmpty()) {
+          if (entitiesBuilder_.isEmpty()) {
+            entitiesBuilder_.dispose();
+            entitiesBuilder_ = null;
+            entities_ = other.entities_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            entitiesBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getEntitiesFieldBuilder()
+                    : null;
+          } else {
+            entitiesBuilder_.addAllMessages(other.entities_);
+          }
+        }
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The unique identifier of the session entity type.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+     * ID&gt;/agents/&lt;Agent ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type
+     * ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The unique identifier of the session entity type.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+     * ID&gt;/agents/&lt;Agent ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type
+     * ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The unique identifier of the session entity type.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+     * ID&gt;/agents/&lt;Agent ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type
+     * ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The unique identifier of the session entity type.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+     * ID&gt;/agents/&lt;Agent ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type
+     * ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The unique identifier of the session entity type.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+     * ID&gt;/agents/&lt;Agent ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type
+     * ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int entityOverrideMode_ = 0;
+    /**
+     *
+     *
+     * <pre>
+     * Required. Indicates whether the additional data should override or supplement the
+     * custom entity type definition.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode entity_override_mode = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The enum numeric value on the wire for entityOverrideMode.
+     */
+    @java.lang.Override
+    public int getEntityOverrideModeValue() {
+      return entityOverrideMode_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Indicates whether the additional data should override or supplement the
+     * custom entity type definition.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode entity_override_mode = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @param value The enum numeric value on the wire for entityOverrideMode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEntityOverrideModeValue(int value) {
+
+      entityOverrideMode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Indicates whether the additional data should override or supplement the
+     * custom entity type definition.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode entity_override_mode = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The entityOverrideMode.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode
+        getEntityOverrideMode() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode result =
+          com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode.valueOf(
+              entityOverrideMode_);
+      return result == null
+          ? com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode.UNRECOGNIZED
+          : result;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Indicates whether the additional data should override or supplement the
+     * custom entity type definition.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode entity_override_mode = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @param value The entityOverrideMode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEntityOverrideMode(
+        com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      entityOverrideMode_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. Indicates whether the additional data should override or supplement the
+     * custom entity type definition.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode entity_override_mode = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearEntityOverrideMode() {
+
+      entityOverrideMode_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity> entities_ =
+        java.util.Collections.emptyList();
+
+    private void ensureEntitiesIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        entities_ =
+            new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity>(
+                entities_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.EntityOrBuilder>
+        entitiesBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * Required. The collection of entities to override or supplement the custom entity
+     * type.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity>
+        getEntitiesList() {
+      if (entitiesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(entities_);
+      } else {
+        return entitiesBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The collection of entities to override or supplement the custom entity
+     * type.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public int getEntitiesCount() {
+      if (entitiesBuilder_ == null) {
+        return entities_.size();
+      } else {
+        return entitiesBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The collection of entities to override or supplement the custom entity
+     * type.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity getEntities(int index) {
+      if (entitiesBuilder_ == null) {
+        return entities_.get(index);
+      } else {
+        return entitiesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The collection of entities to override or supplement the custom entity
+     * type.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setEntities(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity value) {
+      if (entitiesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEntitiesIsMutable();
+        entities_.set(index, value);
+        onChanged();
+      } else {
+        entitiesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The collection of entities to override or supplement the custom entity
+     * type.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setEntities(
+        int index,
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.Builder builderForValue) {
+      if (entitiesBuilder_ == null) {
+        ensureEntitiesIsMutable();
+        entities_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        entitiesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The collection of entities to override or supplement the custom entity
+     * type.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder addEntities(com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity value) {
+      if (entitiesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEntitiesIsMutable();
+        entities_.add(value);
+        onChanged();
+      } else {
+        entitiesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The collection of entities to override or supplement the custom entity
+     * type.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder addEntities(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity value) {
+      if (entitiesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEntitiesIsMutable();
+        entities_.add(index, value);
+        onChanged();
+      } else {
+        entitiesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The collection of entities to override or supplement the custom entity
+     * type.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder addEntities(
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.Builder builderForValue) {
+      if (entitiesBuilder_ == null) {
+        ensureEntitiesIsMutable();
+        entities_.add(builderForValue.build());
+        onChanged();
+      } else {
+        entitiesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The collection of entities to override or supplement the custom entity
+     * type.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder addEntities(
+        int index,
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.Builder builderForValue) {
+      if (entitiesBuilder_ == null) {
+        ensureEntitiesIsMutable();
+        entities_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        entitiesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The collection of entities to override or supplement the custom entity
+     * type.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder addAllEntities(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity>
+            values) {
+      if (entitiesBuilder_ == null) {
+        ensureEntitiesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, entities_);
+        onChanged();
+      } else {
+        entitiesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The collection of entities to override or supplement the custom entity
+     * type.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearEntities() {
+      if (entitiesBuilder_ == null) {
+        entities_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        entitiesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The collection of entities to override or supplement the custom entity
+     * type.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder removeEntities(int index) {
+      if (entitiesBuilder_ == null) {
+        ensureEntitiesIsMutable();
+        entities_.remove(index);
+        onChanged();
+      } else {
+        entitiesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The collection of entities to override or supplement the custom entity
+     * type.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.Builder getEntitiesBuilder(
+        int index) {
+      return getEntitiesFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The collection of entities to override or supplement the custom entity
+     * type.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.EntityOrBuilder getEntitiesOrBuilder(
+        int index) {
+      if (entitiesBuilder_ == null) {
+        return entities_.get(index);
+      } else {
+        return entitiesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The collection of entities to override or supplement the custom entity
+     * type.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public java.util.List<
+            ? extends com.google.cloud.dialogflow.cx.v3beta1.EntityType.EntityOrBuilder>
+        getEntitiesOrBuilderList() {
+      if (entitiesBuilder_ != null) {
+        return entitiesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(entities_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The collection of entities to override or supplement the custom entity
+     * type.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.Builder addEntitiesBuilder() {
+      return getEntitiesFieldBuilder()
+          .addBuilder(
+              com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The collection of entities to override or supplement the custom entity
+     * type.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.Builder addEntitiesBuilder(
+        int index) {
+      return getEntitiesFieldBuilder()
+          .addBuilder(
+              index, com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The collection of entities to override or supplement the custom entity
+     * type.
+     * </pre>
+     *
+     * <code>
+     * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.Builder>
+        getEntitiesBuilderList() {
+      return getEntitiesFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.EntityOrBuilder>
+        getEntitiesFieldBuilder() {
+      if (entitiesBuilder_ == null) {
+        entitiesBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity,
+                com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.EntityType.EntityOrBuilder>(
+                entities_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+        entities_ = null;
+      }
+      return entitiesBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.SessionEntityType)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.SessionEntityType)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<SessionEntityType> PARSER =
+      new com.google.protobuf.AbstractParser<SessionEntityType>() {
+        @java.lang.Override
+        public SessionEntityType parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new SessionEntityType(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<SessionEntityType> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<SessionEntityType> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityTypeName.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityTypeName.java
new file mode 100644
index 000000000..85ff5e53e
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityTypeName.java
@@ -0,0 +1,488 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.pathtemplate.ValidationException;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+
+/** AUTO-GENERATED DOCUMENTATION AND CLASS */
+@javax.annotation.Generated("by GAPIC protoc plugin")
+public class SessionEntityTypeName implements ResourceName {
+
+  @Deprecated
+  protected SessionEntityTypeName() {}
+
+  private static final PathTemplate PROJECT_LOCATION_AGENT_SESSION_ENTITY_TYPE_PATH_TEMPLATE =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/agents/{agent}/sessions/{session}/entityTypes/{entity_type}");
+  private static final PathTemplate
+      PROJECT_LOCATION_AGENT_ENVIRONMENT_SESSION_ENTITY_TYPE_PATH_TEMPLATE =
+          PathTemplate.createWithoutUrlEncoding(
+              "projects/{project}/locations/{location}/agents/{agent}/environments/{environment}/sessions/{session}/entityTypes/{entity_type}");
+
+  private volatile Map<String, String> fieldValuesMap;
+  private PathTemplate pathTemplate;
+  private String fixedValue;
+
+  private String project;
+  private String location;
+  private String agent;
+  private String session;
+  private String entityType;
+  private String environment;
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public String getAgent() {
+    return agent;
+  }
+
+  public String getSession() {
+    return session;
+  }
+
+  public String getEntityType() {
+    return entityType;
+  }
+
+  public String getEnvironment() {
+    return environment;
+  }
+
+  private SessionEntityTypeName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    agent = Preconditions.checkNotNull(builder.getAgent());
+    session = Preconditions.checkNotNull(builder.getSession());
+    entityType = Preconditions.checkNotNull(builder.getEntityType());
+    pathTemplate = PROJECT_LOCATION_AGENT_SESSION_ENTITY_TYPE_PATH_TEMPLATE;
+  }
+
+  private SessionEntityTypeName(ProjectLocationAgentEnvironmentSessionEntityTypeBuilder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    agent = Preconditions.checkNotNull(builder.getAgent());
+    environment = Preconditions.checkNotNull(builder.getEnvironment());
+    session = Preconditions.checkNotNull(builder.getSession());
+    entityType = Preconditions.checkNotNull(builder.getEntityType());
+    pathTemplate = PROJECT_LOCATION_AGENT_ENVIRONMENT_SESSION_ENTITY_TYPE_PATH_TEMPLATE;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  @BetaApi("The per-pattern Builders are not stable yet and may be changed in the future.")
+  public static Builder newProjectLocationAgentSessionEntityTypeBuilder() {
+    return new Builder();
+  }
+
+  @BetaApi("The per-pattern Builders are not stable yet and may be changed in the future.")
+  public static ProjectLocationAgentEnvironmentSessionEntityTypeBuilder
+      newProjectLocationAgentEnvironmentSessionEntityTypeBuilder() {
+    return new ProjectLocationAgentEnvironmentSessionEntityTypeBuilder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  public static SessionEntityTypeName of(
+      String project, String location, String agent, String session, String entityType) {
+    return newProjectLocationAgentSessionEntityTypeBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setSession(session)
+        .setEntityType(entityType)
+        .build();
+  }
+
+  @BetaApi("The static create methods are not stable yet and may be changed in the future.")
+  public static SessionEntityTypeName ofProjectLocationAgentSessionEntityTypeName(
+      String project, String location, String agent, String session, String entityType) {
+    return newProjectLocationAgentSessionEntityTypeBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setSession(session)
+        .setEntityType(entityType)
+        .build();
+  }
+
+  @BetaApi("The static create methods are not stable yet and may be changed in the future.")
+  public static SessionEntityTypeName ofProjectLocationAgentEnvironmentSessionEntityTypeName(
+      String project,
+      String location,
+      String agent,
+      String environment,
+      String session,
+      String entityType) {
+    return newProjectLocationAgentEnvironmentSessionEntityTypeBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setEnvironment(environment)
+        .setSession(session)
+        .setEntityType(entityType)
+        .build();
+  }
+
+  public static String format(
+      String project, String location, String agent, String session, String entityType) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setSession(session)
+        .setEntityType(entityType)
+        .build()
+        .toString();
+  }
+
+  @BetaApi("The static format methods are not stable yet and may be changed in the future.")
+  public static String formatProjectLocationAgentSessionEntityTypeName(
+      String project, String location, String agent, String session, String entityType) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setSession(session)
+        .setEntityType(entityType)
+        .build()
+        .toString();
+  }
+
+  @BetaApi("The static format methods are not stable yet and may be changed in the future.")
+  public static String formatProjectLocationAgentEnvironmentSessionEntityTypeName(
+      String project,
+      String location,
+      String agent,
+      String environment,
+      String session,
+      String entityType) {
+    return newProjectLocationAgentEnvironmentSessionEntityTypeBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setEnvironment(environment)
+        .setSession(session)
+        .setEntityType(entityType)
+        .build()
+        .toString();
+  }
+
+  public static SessionEntityTypeName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    if (PROJECT_LOCATION_AGENT_SESSION_ENTITY_TYPE_PATH_TEMPLATE.matches(formattedString)) {
+      Map<String, String> matchMap =
+          PROJECT_LOCATION_AGENT_SESSION_ENTITY_TYPE_PATH_TEMPLATE.match(formattedString);
+      return ofProjectLocationAgentSessionEntityTypeName(
+          matchMap.get("project"),
+          matchMap.get("location"),
+          matchMap.get("agent"),
+          matchMap.get("session"),
+          matchMap.get("entity_type"));
+    } else if (PROJECT_LOCATION_AGENT_ENVIRONMENT_SESSION_ENTITY_TYPE_PATH_TEMPLATE.matches(
+        formattedString)) {
+      Map<String, String> matchMap =
+          PROJECT_LOCATION_AGENT_ENVIRONMENT_SESSION_ENTITY_TYPE_PATH_TEMPLATE.match(
+              formattedString);
+      return ofProjectLocationAgentEnvironmentSessionEntityTypeName(
+          matchMap.get("project"),
+          matchMap.get("location"),
+          matchMap.get("agent"),
+          matchMap.get("environment"),
+          matchMap.get("session"),
+          matchMap.get("entity_type"));
+    }
+    throw new ValidationException("JobName.parse: formattedString not in valid format");
+  }
+
+  public static List<SessionEntityTypeName> parseList(List<String> formattedStrings) {
+    List<SessionEntityTypeName> list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List<String> toStringList(List<SessionEntityTypeName> values) {
+    List<String> list = new ArrayList<>(values.size());
+    for (SessionEntityTypeName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PROJECT_LOCATION_AGENT_SESSION_ENTITY_TYPE_PATH_TEMPLATE.matches(formattedString)
+        || PROJECT_LOCATION_AGENT_ENVIRONMENT_SESSION_ENTITY_TYPE_PATH_TEMPLATE.matches(
+            formattedString);
+  }
+
+  @Override
+  public Map<String, String> getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder<String, String> fieldMapBuilder = ImmutableMap.builder();
+          if (project != null) {
+            fieldMapBuilder.put("project", project);
+          }
+          if (location != null) {
+            fieldMapBuilder.put("location", location);
+          }
+          if (agent != null) {
+            fieldMapBuilder.put("agent", agent);
+          }
+          if (session != null) {
+            fieldMapBuilder.put("session", session);
+          }
+          if (entityType != null) {
+            fieldMapBuilder.put("entity_type", entityType);
+          }
+          if (environment != null) {
+            fieldMapBuilder.put("environment", environment);
+          }
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return fixedValue != null ? fixedValue : pathTemplate.instantiate(getFieldValuesMap());
+  }
+
+  /**
+   * Builder for
+   * projects/{project}/locations/{location}/agents/{agent}/sessions/{session}/entityTypes/{entity_type}.
+   */
+  public static class Builder {
+
+    private String project;
+    private String location;
+    private String agent;
+    private String session;
+    private String entityType;
+
+    protected Builder() {}
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getAgent() {
+      return agent;
+    }
+
+    public String getSession() {
+      return session;
+    }
+
+    public String getEntityType() {
+      return entityType;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public Builder setAgent(String agent) {
+      this.agent = agent;
+      return this;
+    }
+
+    public Builder setSession(String session) {
+      this.session = session;
+      return this;
+    }
+
+    public Builder setEntityType(String entityType) {
+      this.entityType = entityType;
+      return this;
+    }
+
+    private Builder(SessionEntityTypeName sessionEntityTypeName) {
+      Preconditions.checkArgument(
+          sessionEntityTypeName.pathTemplate
+              == PROJECT_LOCATION_AGENT_SESSION_ENTITY_TYPE_PATH_TEMPLATE,
+          "toBuilder is only supported when SessionEntityTypeName has the pattern of "
+              + "projects/{project}/locations/{location}/agents/{agent}/sessions/{session}/entityTypes/{entity_type}.");
+      project = sessionEntityTypeName.project;
+      location = sessionEntityTypeName.location;
+      agent = sessionEntityTypeName.agent;
+      session = sessionEntityTypeName.session;
+      entityType = sessionEntityTypeName.entityType;
+    }
+
+    public SessionEntityTypeName build() {
+      return new SessionEntityTypeName(this);
+    }
+  }
+
+  /**
+   * Builder for
+   * projects/{project}/locations/{location}/agents/{agent}/environments/{environment}/sessions/{session}/entityTypes/{entity_type}.
+   */
+  @BetaApi("The per-pattern Builders are not stable yet and may be changed in the future.")
+  public static class ProjectLocationAgentEnvironmentSessionEntityTypeBuilder {
+
+    private String project;
+    private String location;
+    private String agent;
+    private String environment;
+    private String session;
+    private String entityType;
+
+    private ProjectLocationAgentEnvironmentSessionEntityTypeBuilder() {}
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getAgent() {
+      return agent;
+    }
+
+    public String getEnvironment() {
+      return environment;
+    }
+
+    public String getSession() {
+      return session;
+    }
+
+    public String getEntityType() {
+      return entityType;
+    }
+
+    public ProjectLocationAgentEnvironmentSessionEntityTypeBuilder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public ProjectLocationAgentEnvironmentSessionEntityTypeBuilder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public ProjectLocationAgentEnvironmentSessionEntityTypeBuilder setAgent(String agent) {
+      this.agent = agent;
+      return this;
+    }
+
+    public ProjectLocationAgentEnvironmentSessionEntityTypeBuilder setEnvironment(
+        String environment) {
+      this.environment = environment;
+      return this;
+    }
+
+    public ProjectLocationAgentEnvironmentSessionEntityTypeBuilder setSession(String session) {
+      this.session = session;
+      return this;
+    }
+
+    public ProjectLocationAgentEnvironmentSessionEntityTypeBuilder setEntityType(
+        String entityType) {
+      this.entityType = entityType;
+      return this;
+    }
+
+    public SessionEntityTypeName build() {
+      return new SessionEntityTypeName(this);
+    }
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o != null || getClass() == o.getClass()) {
+      SessionEntityTypeName that = (SessionEntityTypeName) o;
+      return (Objects.equals(this.project, that.project))
+          && (Objects.equals(this.location, that.location))
+          && (Objects.equals(this.agent, that.agent))
+          && (Objects.equals(this.session, that.session))
+          && (Objects.equals(this.entityType, that.entityType))
+          && (Objects.equals(this.environment, that.environment));
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= Objects.hashCode(fixedValue);
+    h *= 1000003;
+    h ^= Objects.hashCode(project);
+    h *= 1000003;
+    h ^= Objects.hashCode(location);
+    h *= 1000003;
+    h ^= Objects.hashCode(agent);
+    h *= 1000003;
+    h ^= Objects.hashCode(session);
+    h *= 1000003;
+    h ^= Objects.hashCode(entityType);
+    h *= 1000003;
+    h ^= Objects.hashCode(environment);
+    return h;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityTypeOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityTypeOrBuilder.java
new file mode 100644
index 000000000..d46398e56
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityTypeOrBuilder.java
@@ -0,0 +1,155 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface SessionEntityTypeOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.SessionEntityType)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The unique identifier of the session entity type.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+   * ID&gt;/agents/&lt;Agent ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type
+   * ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The unique identifier of the session entity type.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+   * ID&gt;/agents/&lt;Agent ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type
+   * ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. Indicates whether the additional data should override or supplement the
+   * custom entity type definition.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode entity_override_mode = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The enum numeric value on the wire for entityOverrideMode.
+   */
+  int getEntityOverrideModeValue();
+  /**
+   *
+   *
+   * <pre>
+   * Required. Indicates whether the additional data should override or supplement the
+   * custom entity type definition.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode entity_override_mode = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The entityOverrideMode.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.EntityOverrideMode
+      getEntityOverrideMode();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The collection of entities to override or supplement the custom entity
+   * type.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity> getEntitiesList();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The collection of entities to override or supplement the custom entity
+   * type.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.EntityType.Entity getEntities(int index);
+  /**
+   *
+   *
+   * <pre>
+   * Required. The collection of entities to override or supplement the custom entity
+   * type.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  int getEntitiesCount();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The collection of entities to override or supplement the custom entity
+   * type.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.EntityType.EntityOrBuilder>
+      getEntitiesOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The collection of entities to override or supplement the custom entity
+   * type.
+   * </pre>
+   *
+   * <code>
+   * repeated .google.cloud.dialogflow.cx.v3beta1.EntityType.Entity entities = 4 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.EntityType.EntityOrBuilder getEntitiesOrBuilder(int index);
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityTypeProto.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityTypeProto.java
new file mode 100644
index 000000000..4fddf3689
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionEntityTypeProto.java
@@ -0,0 +1,244 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public final class SessionEntityTypeProto {
+  private SessionEntityTypeProto() {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistryLite registry) {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions((com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_SessionEntityType_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_SessionEntityType_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListSessionEntityTypesRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListSessionEntityTypesRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListSessionEntityTypesResponse_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListSessionEntityTypesResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_GetSessionEntityTypeRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_GetSessionEntityTypeRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_CreateSessionEntityTypeRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_CreateSessionEntityTypeRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateSessionEntityTypeRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateSessionEntityTypeRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteSessionEntityTypeRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteSessionEntityTypeRequest_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
+    return descriptor;
+  }
+
+  private static com.google.protobuf.Descriptors.FileDescriptor descriptor;
+
+  static {
+    java.lang.String[] descriptorData = {
+      "\n<google/cloud/dialogflow/cx/v3beta1/ses"
+          + "sion_entity_type.proto\022\"google.cloud.dia"
+          + "logflow.cx.v3beta1\032\034google/api/annotatio"
+          + "ns.proto\032\027google/api/client.proto\032\037googl"
+          + "e/api/field_behavior.proto\032\031google/api/r"
+          + "esource.proto\0324google/cloud/dialogflow/c"
+          + "x/v3beta1/entity_type.proto\032\033google/prot"
+          + "obuf/empty.proto\032 google/protobuf/field_"
+          + "mask.proto\"\377\004\n\021SessionEntityType\022\021\n\004name"
+          + "\030\001 \001(\tB\003\340A\002\022k\n\024entity_override_mode\030\003 \001("
+          + "\0162H.google.cloud.dialogflow.cx.v3beta1.S"
+          + "essionEntityType.EntityOverrideModeB\003\340A\002"
+          + "\022L\n\010entities\030\004 \003(\01325.google.cloud.dialog"
+          + "flow.cx.v3beta1.EntityType.EntityB\003\340A\002\"\202"
+          + "\001\n\022EntityOverrideMode\022$\n ENTITY_OVERRIDE"
+          + "_MODE_UNSPECIFIED\020\000\022!\n\035ENTITY_OVERRIDE_M"
+          + "ODE_OVERRIDE\020\001\022#\n\037ENTITY_OVERRIDE_MODE_S"
+          + "UPPLEMENT\020\002:\226\002\352A\222\002\n+dialogflow.googleapi"
+          + "s.com/SessionEntityType\022cprojects/{proje"
+          + "ct}/locations/{location}/agents/{agent}/"
+          + "sessions/{session}/entityTypes/{entity_t"
+          + "ype}\022~projects/{project}/locations/{loca"
+          + "tion}/agents/{agent}/environments/{envir"
+          + "onment}/sessions/{session}/entityTypes/{"
+          + "entity_type}\"\213\001\n\035ListSessionEntityTypesR"
+          + "equest\022C\n\006parent\030\001 \001(\tB3\340A\002\372A-\022+dialogfl"
+          + "ow.googleapis.com/SessionEntityType\022\021\n\tp"
+          + "age_size\030\002 \001(\005\022\022\n\npage_token\030\003 \001(\t\"\216\001\n\036L"
+          + "istSessionEntityTypesResponse\022S\n\024session"
+          + "_entity_types\030\001 \003(\01325.google.cloud.dialo"
+          + "gflow.cx.v3beta1.SessionEntityType\022\027\n\017ne"
+          + "xt_page_token\030\002 \001(\t\"`\n\033GetSessionEntityT"
+          + "ypeRequest\022A\n\004name\030\001 \001(\tB3\340A\002\372A-\n+dialog"
+          + "flow.googleapis.com/SessionEntityType\"\276\001"
+          + "\n\036CreateSessionEntityTypeRequest\022C\n\006pare"
+          + "nt\030\001 \001(\tB3\340A\002\372A-\022+dialogflow.googleapis."
+          + "com/SessionEntityType\022W\n\023session_entity_"
+          + "type\030\002 \001(\01325.google.cloud.dialogflow.cx."
+          + "v3beta1.SessionEntityTypeB\003\340A\002\"\252\001\n\036Updat"
+          + "eSessionEntityTypeRequest\022W\n\023session_ent"
+          + "ity_type\030\001 \001(\01325.google.cloud.dialogflow"
+          + ".cx.v3beta1.SessionEntityTypeB\003\340A\002\022/\n\013up"
+          + "date_mask\030\002 \001(\0132\032.google.protobuf.FieldM"
+          + "ask\"c\n\036DeleteSessionEntityTypeRequest\022A\n"
+          + "\004name\030\001 \001(\tB3\340A\002\372A-\n+dialogflow.googleap"
+          + "is.com/SessionEntityType2\227\013\n\022SessionEnti"
+          + "tyTypes\022\372\001\n\026ListSessionEntityTypes\022A.goo"
+          + "gle.cloud.dialogflow.cx.v3beta1.ListSess"
+          + "ionEntityTypesRequest\032B.google.cloud.dia"
+          + "logflow.cx.v3beta1.ListSessionEntityType"
+          + "sResponse\"Y\202\323\344\223\002J\022H/v3beta1/{parent=proj"
+          + "ects/*/locations/*/agents/*/sessions/*}/"
+          + "entityTypes\332A\006parent\022\347\001\n\024GetSessionEntit"
+          + "yType\022?.google.cloud.dialogflow.cx.v3bet"
+          + "a1.GetSessionEntityTypeRequest\0325.google."
+          + "cloud.dialogflow.cx.v3beta1.SessionEntit"
+          + "yType\"W\202\323\344\223\002J\022H/v3beta1/{name=projects/*"
+          + "/locations/*/agents/*/sessions/*/entityT"
+          + "ypes/*}\332A\004name\022\231\002\n\027CreateSessionEntityTy"
+          + "pe\022B.google.cloud.dialogflow.cx.v3beta1."
+          + "CreateSessionEntityTypeRequest\0325.google."
+          + "cloud.dialogflow.cx.v3beta1.SessionEntit"
+          + "yType\"\202\001\202\323\344\223\002_\"H/v3beta1/{parent=project"
+          + "s/*/locations/*/agents/*/sessions/*}/ent"
+          + "ityTypes:\023session_entity_type\332A\032parent,s"
+          + "ession_entity_type\022\262\002\n\027UpdateSessionEnti"
+          + "tyType\022B.google.cloud.dialogflow.cx.v3be"
+          + "ta1.UpdateSessionEntityTypeRequest\0325.goo"
+          + "gle.cloud.dialogflow.cx.v3beta1.SessionE"
+          + "ntityType\"\233\001\202\323\344\223\002s2\\/v3beta1/{session_en"
+          + "tity_type.name=projects/*/locations/*/ag"
+          + "ents/*/sessions/*/entityTypes/*}:\023sessio"
+          + "n_entity_type\332A\037session_entity_type,upda"
+          + "te_mask\022\316\001\n\027DeleteSessionEntityType\022B.go"
+          + "ogle.cloud.dialogflow.cx.v3beta1.DeleteS"
+          + "essionEntityTypeRequest\032\026.google.protobu"
+          + "f.Empty\"W\202\323\344\223\002J*H/v3beta1/{name=projects"
+          + "/*/locations/*/agents/*/sessions/*/entit"
+          + "yTypes/*}\332A\004name\032x\312A\031dialogflow.googleap"
+          + "is.com\322AYhttps://www.googleapis.com/auth"
+          + "/cloud-platform,https://www.googleapis.c"
+          + "om/auth/dialogflowB\265\001\n&com.google.cloud."
+          + "dialogflow.cx.v3beta1B\026SessionEntityType"
+          + "ProtoP\001ZDgoogle.golang.org/genproto/goog"
+          + "leapis/cloud/dialogflow/cx/v3beta1;cx\370\001\001"
+          + "\242\002\002DF\252\002\"Google.Cloud.Dialogflow.Cx.V3Bet"
+          + "a1b\006proto3"
+    };
+    descriptor =
+        com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
+            descriptorData,
+            new com.google.protobuf.Descriptors.FileDescriptor[] {
+              com.google.api.AnnotationsProto.getDescriptor(),
+              com.google.api.ClientProto.getDescriptor(),
+              com.google.api.FieldBehaviorProto.getDescriptor(),
+              com.google.api.ResourceProto.getDescriptor(),
+              com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto.getDescriptor(),
+              com.google.protobuf.EmptyProto.getDescriptor(),
+              com.google.protobuf.FieldMaskProto.getDescriptor(),
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_SessionEntityType_descriptor =
+        getDescriptor().getMessageTypes().get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_SessionEntityType_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_SessionEntityType_descriptor,
+            new java.lang.String[] {
+              "Name", "EntityOverrideMode", "Entities",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListSessionEntityTypesRequest_descriptor =
+        getDescriptor().getMessageTypes().get(1);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListSessionEntityTypesRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ListSessionEntityTypesRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "PageSize", "PageToken",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListSessionEntityTypesResponse_descriptor =
+        getDescriptor().getMessageTypes().get(2);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListSessionEntityTypesResponse_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ListSessionEntityTypesResponse_descriptor,
+            new java.lang.String[] {
+              "SessionEntityTypes", "NextPageToken",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_GetSessionEntityTypeRequest_descriptor =
+        getDescriptor().getMessageTypes().get(3);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_GetSessionEntityTypeRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_GetSessionEntityTypeRequest_descriptor,
+            new java.lang.String[] {
+              "Name",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_CreateSessionEntityTypeRequest_descriptor =
+        getDescriptor().getMessageTypes().get(4);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_CreateSessionEntityTypeRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_CreateSessionEntityTypeRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "SessionEntityType",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateSessionEntityTypeRequest_descriptor =
+        getDescriptor().getMessageTypes().get(5);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateSessionEntityTypeRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateSessionEntityTypeRequest_descriptor,
+            new java.lang.String[] {
+              "SessionEntityType", "UpdateMask",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteSessionEntityTypeRequest_descriptor =
+        getDescriptor().getMessageTypes().get(6);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteSessionEntityTypeRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteSessionEntityTypeRequest_descriptor,
+            new java.lang.String[] {
+              "Name",
+            });
+    com.google.protobuf.ExtensionRegistry registry =
+        com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.ClientProto.defaultHost);
+    registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
+    registry.add(com.google.api.AnnotationsProto.http);
+    registry.add(com.google.api.ClientProto.methodSignature);
+    registry.add(com.google.api.ClientProto.oauthScopes);
+    registry.add(com.google.api.ResourceProto.resource);
+    registry.add(com.google.api.ResourceProto.resourceReference);
+    com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
+        descriptor, registry);
+    com.google.api.AnnotationsProto.getDescriptor();
+    com.google.api.ClientProto.getDescriptor();
+    com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.api.ResourceProto.getDescriptor();
+    com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto.getDescriptor();
+    com.google.protobuf.EmptyProto.getDescriptor();
+    com.google.protobuf.FieldMaskProto.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionInfo.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionInfo.java
new file mode 100644
index 000000000..08b4e999d
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionInfo.java
@@ -0,0 +1,1058 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Represents session information communicated to and from the webhook.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.SessionInfo}
+ */
+public final class SessionInfo extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.SessionInfo)
+    SessionInfoOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use SessionInfo.newBuilder() to construct.
+  private SessionInfo(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private SessionInfo() {
+    session_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new SessionInfo();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private SessionInfo(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              session_ = s;
+              break;
+            }
+          case 18:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                parameters_ =
+                    com.google.protobuf.MapField.newMapField(
+                        ParametersDefaultEntryHolder.defaultEntry);
+                mutable_bitField0_ |= 0x00000001;
+              }
+              com.google.protobuf.MapEntry<java.lang.String, com.google.protobuf.Value>
+                  parameters__ =
+                      input.readMessage(
+                          ParametersDefaultEntryHolder.defaultEntry.getParserForType(),
+                          extensionRegistry);
+              parameters_.getMutableMap().put(parameters__.getKey(), parameters__.getValue());
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_SessionInfo_descriptor;
+  }
+
+  @SuppressWarnings({"rawtypes"})
+  @java.lang.Override
+  protected com.google.protobuf.MapField internalGetMapField(int number) {
+    switch (number) {
+      case 2:
+        return internalGetParameters();
+      default:
+        throw new RuntimeException("Invalid map field number: " + number);
+    }
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_SessionInfo_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.class,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.Builder.class);
+  }
+
+  public static final int SESSION_FIELD_NUMBER = 1;
+  private volatile java.lang.Object session_;
+  /**
+   *
+   *
+   * <pre>
+   * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * The unique identifier of the [session][google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest.session]. This
+   * field can be used by the webhook to identify a user.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * </pre>
+   *
+   * <code>string session = 1 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The session.
+   */
+  @java.lang.Override
+  public java.lang.String getSession() {
+    java.lang.Object ref = session_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      session_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * The unique identifier of the [session][google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest.session]. This
+   * field can be used by the webhook to identify a user.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * </pre>
+   *
+   * <code>string session = 1 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for session.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getSessionBytes() {
+    java.lang.Object ref = session_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      session_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int PARAMETERS_FIELD_NUMBER = 2;
+
+  private static final class ParametersDefaultEntryHolder {
+    static final com.google.protobuf.MapEntry<java.lang.String, com.google.protobuf.Value>
+        defaultEntry =
+            com.google.protobuf.MapEntry
+                .<java.lang.String, com.google.protobuf.Value>newDefaultInstance(
+                    com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+                        .internal_static_google_cloud_dialogflow_cx_v3beta1_SessionInfo_ParametersEntry_descriptor,
+                    com.google.protobuf.WireFormat.FieldType.STRING,
+                    "",
+                    com.google.protobuf.WireFormat.FieldType.MESSAGE,
+                    com.google.protobuf.Value.getDefaultInstance());
+  }
+
+  private com.google.protobuf.MapField<java.lang.String, com.google.protobuf.Value> parameters_;
+
+  private com.google.protobuf.MapField<java.lang.String, com.google.protobuf.Value>
+      internalGetParameters() {
+    if (parameters_ == null) {
+      return com.google.protobuf.MapField.emptyMapField(ParametersDefaultEntryHolder.defaultEntry);
+    }
+    return parameters_;
+  }
+
+  public int getParametersCount() {
+    return internalGetParameters().getMap().size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Optional for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * All parameters collected from forms and intents during the session.
+   * Parameters can be created, updated, or removed by the webhook. To remove a
+   * parameter from the session, the webhook should explicitly set the parameter
+   * value to null in [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The map is keyed by parameters'
+   * display names.
+   * </pre>
+   *
+   * <code>map&lt;string, .google.protobuf.Value&gt; parameters = 2;</code>
+   */
+  @java.lang.Override
+  public boolean containsParameters(java.lang.String key) {
+    if (key == null) {
+      throw new java.lang.NullPointerException();
+    }
+    return internalGetParameters().getMap().containsKey(key);
+  }
+  /** Use {@link #getParametersMap()} instead. */
+  @java.lang.Override
+  @java.lang.Deprecated
+  public java.util.Map<java.lang.String, com.google.protobuf.Value> getParameters() {
+    return getParametersMap();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Optional for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * All parameters collected from forms and intents during the session.
+   * Parameters can be created, updated, or removed by the webhook. To remove a
+   * parameter from the session, the webhook should explicitly set the parameter
+   * value to null in [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The map is keyed by parameters'
+   * display names.
+   * </pre>
+   *
+   * <code>map&lt;string, .google.protobuf.Value&gt; parameters = 2;</code>
+   */
+  @java.lang.Override
+  public java.util.Map<java.lang.String, com.google.protobuf.Value> getParametersMap() {
+    return internalGetParameters().getMap();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Optional for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * All parameters collected from forms and intents during the session.
+   * Parameters can be created, updated, or removed by the webhook. To remove a
+   * parameter from the session, the webhook should explicitly set the parameter
+   * value to null in [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The map is keyed by parameters'
+   * display names.
+   * </pre>
+   *
+   * <code>map&lt;string, .google.protobuf.Value&gt; parameters = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.Value getParametersOrDefault(
+      java.lang.String key, com.google.protobuf.Value defaultValue) {
+    if (key == null) {
+      throw new java.lang.NullPointerException();
+    }
+    java.util.Map<java.lang.String, com.google.protobuf.Value> map =
+        internalGetParameters().getMap();
+    return map.containsKey(key) ? map.get(key) : defaultValue;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Optional for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * All parameters collected from forms and intents during the session.
+   * Parameters can be created, updated, or removed by the webhook. To remove a
+   * parameter from the session, the webhook should explicitly set the parameter
+   * value to null in [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The map is keyed by parameters'
+   * display names.
+   * </pre>
+   *
+   * <code>map&lt;string, .google.protobuf.Value&gt; parameters = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.Value getParametersOrThrow(java.lang.String key) {
+    if (key == null) {
+      throw new java.lang.NullPointerException();
+    }
+    java.util.Map<java.lang.String, com.google.protobuf.Value> map =
+        internalGetParameters().getMap();
+    if (!map.containsKey(key)) {
+      throw new java.lang.IllegalArgumentException();
+    }
+    return map.get(key);
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getSessionBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, session_);
+    }
+    com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
+        output, internalGetParameters(), ParametersDefaultEntryHolder.defaultEntry, 2);
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getSessionBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, session_);
+    }
+    for (java.util.Map.Entry<java.lang.String, com.google.protobuf.Value> entry :
+        internalGetParameters().getMap().entrySet()) {
+      com.google.protobuf.MapEntry<java.lang.String, com.google.protobuf.Value> parameters__ =
+          ParametersDefaultEntryHolder.defaultEntry
+              .newBuilderForType()
+              .setKey(entry.getKey())
+              .setValue(entry.getValue())
+              .build();
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, parameters__);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.SessionInfo)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.SessionInfo other =
+        (com.google.cloud.dialogflow.cx.v3beta1.SessionInfo) obj;
+
+    if (!getSession().equals(other.getSession())) return false;
+    if (!internalGetParameters().equals(other.internalGetParameters())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + SESSION_FIELD_NUMBER;
+    hash = (53 * hash) + getSession().hashCode();
+    if (!internalGetParameters().getMap().isEmpty()) {
+      hash = (37 * hash) + PARAMETERS_FIELD_NUMBER;
+      hash = (53 * hash) + internalGetParameters().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionInfo parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionInfo parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionInfo parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionInfo parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionInfo parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionInfo parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionInfo parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionInfo parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionInfo parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionInfo parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionInfo parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionInfo parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.cx.v3beta1.SessionInfo prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents session information communicated to and from the webhook.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.SessionInfo}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.SessionInfo)
+      com.google.cloud.dialogflow.cx.v3beta1.SessionInfoOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_SessionInfo_descriptor;
+    }
+
+    @SuppressWarnings({"rawtypes"})
+    protected com.google.protobuf.MapField internalGetMapField(int number) {
+      switch (number) {
+        case 2:
+          return internalGetParameters();
+        default:
+          throw new RuntimeException("Invalid map field number: " + number);
+      }
+    }
+
+    @SuppressWarnings({"rawtypes"})
+    protected com.google.protobuf.MapField internalGetMutableMapField(int number) {
+      switch (number) {
+        case 2:
+          return internalGetMutableParameters();
+        default:
+          throw new RuntimeException("Invalid map field number: " + number);
+      }
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_SessionInfo_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.class,
+              com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      session_ = "";
+
+      internalGetMutableParameters().clear();
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_SessionInfo_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionInfo getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionInfo build() {
+      com.google.cloud.dialogflow.cx.v3beta1.SessionInfo result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionInfo buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.SessionInfo result =
+          new com.google.cloud.dialogflow.cx.v3beta1.SessionInfo(this);
+      int from_bitField0_ = bitField0_;
+      result.session_ = session_;
+      result.parameters_ = internalGetParameters();
+      result.parameters_.makeImmutable();
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.SessionInfo) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.SessionInfo) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.SessionInfo other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.getDefaultInstance())
+        return this;
+      if (!other.getSession().isEmpty()) {
+        session_ = other.session_;
+        onChanged();
+      }
+      internalGetMutableParameters().mergeFrom(other.internalGetParameters());
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.SessionInfo parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.SessionInfo) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.lang.Object session_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * The unique identifier of the [session][google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest.session]. This
+     * field can be used by the webhook to identify a user.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * </pre>
+     *
+     * <code>string session = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The session.
+     */
+    public java.lang.String getSession() {
+      java.lang.Object ref = session_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        session_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * The unique identifier of the [session][google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest.session]. This
+     * field can be used by the webhook to identify a user.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * </pre>
+     *
+     * <code>string session = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The bytes for session.
+     */
+    public com.google.protobuf.ByteString getSessionBytes() {
+      java.lang.Object ref = session_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        session_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * The unique identifier of the [session][google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest.session]. This
+     * field can be used by the webhook to identify a user.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * </pre>
+     *
+     * <code>string session = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The session to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSession(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      session_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * The unique identifier of the [session][google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest.session]. This
+     * field can be used by the webhook to identify a user.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * </pre>
+     *
+     * <code>string session = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearSession() {
+
+      session_ = getDefaultInstance().getSession();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * The unique identifier of the [session][google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest.session]. This
+     * field can be used by the webhook to identify a user.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * </pre>
+     *
+     * <code>string session = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The bytes for session to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSessionBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      session_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.MapField<java.lang.String, com.google.protobuf.Value> parameters_;
+
+    private com.google.protobuf.MapField<java.lang.String, com.google.protobuf.Value>
+        internalGetParameters() {
+      if (parameters_ == null) {
+        return com.google.protobuf.MapField.emptyMapField(
+            ParametersDefaultEntryHolder.defaultEntry);
+      }
+      return parameters_;
+    }
+
+    private com.google.protobuf.MapField<java.lang.String, com.google.protobuf.Value>
+        internalGetMutableParameters() {
+      onChanged();
+      ;
+      if (parameters_ == null) {
+        parameters_ =
+            com.google.protobuf.MapField.newMapField(ParametersDefaultEntryHolder.defaultEntry);
+      }
+      if (!parameters_.isMutable()) {
+        parameters_ = parameters_.copy();
+      }
+      return parameters_;
+    }
+
+    public int getParametersCount() {
+      return internalGetParameters().getMap().size();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Optional for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * All parameters collected from forms and intents during the session.
+     * Parameters can be created, updated, or removed by the webhook. To remove a
+     * parameter from the session, the webhook should explicitly set the parameter
+     * value to null in [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The map is keyed by parameters'
+     * display names.
+     * </pre>
+     *
+     * <code>map&lt;string, .google.protobuf.Value&gt; parameters = 2;</code>
+     */
+    @java.lang.Override
+    public boolean containsParameters(java.lang.String key) {
+      if (key == null) {
+        throw new java.lang.NullPointerException();
+      }
+      return internalGetParameters().getMap().containsKey(key);
+    }
+    /** Use {@link #getParametersMap()} instead. */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public java.util.Map<java.lang.String, com.google.protobuf.Value> getParameters() {
+      return getParametersMap();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Optional for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * All parameters collected from forms and intents during the session.
+     * Parameters can be created, updated, or removed by the webhook. To remove a
+     * parameter from the session, the webhook should explicitly set the parameter
+     * value to null in [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The map is keyed by parameters'
+     * display names.
+     * </pre>
+     *
+     * <code>map&lt;string, .google.protobuf.Value&gt; parameters = 2;</code>
+     */
+    @java.lang.Override
+    public java.util.Map<java.lang.String, com.google.protobuf.Value> getParametersMap() {
+      return internalGetParameters().getMap();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Optional for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * All parameters collected from forms and intents during the session.
+     * Parameters can be created, updated, or removed by the webhook. To remove a
+     * parameter from the session, the webhook should explicitly set the parameter
+     * value to null in [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The map is keyed by parameters'
+     * display names.
+     * </pre>
+     *
+     * <code>map&lt;string, .google.protobuf.Value&gt; parameters = 2;</code>
+     */
+    @java.lang.Override
+    public com.google.protobuf.Value getParametersOrDefault(
+        java.lang.String key, com.google.protobuf.Value defaultValue) {
+      if (key == null) {
+        throw new java.lang.NullPointerException();
+      }
+      java.util.Map<java.lang.String, com.google.protobuf.Value> map =
+          internalGetParameters().getMap();
+      return map.containsKey(key) ? map.get(key) : defaultValue;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Optional for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * All parameters collected from forms and intents during the session.
+     * Parameters can be created, updated, or removed by the webhook. To remove a
+     * parameter from the session, the webhook should explicitly set the parameter
+     * value to null in [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The map is keyed by parameters'
+     * display names.
+     * </pre>
+     *
+     * <code>map&lt;string, .google.protobuf.Value&gt; parameters = 2;</code>
+     */
+    @java.lang.Override
+    public com.google.protobuf.Value getParametersOrThrow(java.lang.String key) {
+      if (key == null) {
+        throw new java.lang.NullPointerException();
+      }
+      java.util.Map<java.lang.String, com.google.protobuf.Value> map =
+          internalGetParameters().getMap();
+      if (!map.containsKey(key)) {
+        throw new java.lang.IllegalArgumentException();
+      }
+      return map.get(key);
+    }
+
+    public Builder clearParameters() {
+      internalGetMutableParameters().getMutableMap().clear();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Optional for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * All parameters collected from forms and intents during the session.
+     * Parameters can be created, updated, or removed by the webhook. To remove a
+     * parameter from the session, the webhook should explicitly set the parameter
+     * value to null in [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The map is keyed by parameters'
+     * display names.
+     * </pre>
+     *
+     * <code>map&lt;string, .google.protobuf.Value&gt; parameters = 2;</code>
+     */
+    public Builder removeParameters(java.lang.String key) {
+      if (key == null) {
+        throw new java.lang.NullPointerException();
+      }
+      internalGetMutableParameters().getMutableMap().remove(key);
+      return this;
+    }
+    /** Use alternate mutation accessors instead. */
+    @java.lang.Deprecated
+    public java.util.Map<java.lang.String, com.google.protobuf.Value> getMutableParameters() {
+      return internalGetMutableParameters().getMutableMap();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Optional for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * All parameters collected from forms and intents during the session.
+     * Parameters can be created, updated, or removed by the webhook. To remove a
+     * parameter from the session, the webhook should explicitly set the parameter
+     * value to null in [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The map is keyed by parameters'
+     * display names.
+     * </pre>
+     *
+     * <code>map&lt;string, .google.protobuf.Value&gt; parameters = 2;</code>
+     */
+    public Builder putParameters(java.lang.String key, com.google.protobuf.Value value) {
+      if (key == null) {
+        throw new java.lang.NullPointerException();
+      }
+      if (value == null) {
+        throw new java.lang.NullPointerException();
+      }
+      internalGetMutableParameters().getMutableMap().put(key, value);
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Optional for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+     * All parameters collected from forms and intents during the session.
+     * Parameters can be created, updated, or removed by the webhook. To remove a
+     * parameter from the session, the webhook should explicitly set the parameter
+     * value to null in [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The map is keyed by parameters'
+     * display names.
+     * </pre>
+     *
+     * <code>map&lt;string, .google.protobuf.Value&gt; parameters = 2;</code>
+     */
+    public Builder putAllParameters(
+        java.util.Map<java.lang.String, com.google.protobuf.Value> values) {
+      internalGetMutableParameters().getMutableMap().putAll(values);
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.SessionInfo)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.SessionInfo)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.SessionInfo DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.SessionInfo();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SessionInfo getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<SessionInfo> PARSER =
+      new com.google.protobuf.AbstractParser<SessionInfo>() {
+        @java.lang.Override
+        public SessionInfo parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new SessionInfo(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<SessionInfo> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<SessionInfo> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SessionInfo getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionInfoOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionInfoOrBuilder.java
new file mode 100644
index 000000000..834c00b0a
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionInfoOrBuilder.java
@@ -0,0 +1,138 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface SessionInfoOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.SessionInfo)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * The unique identifier of the [session][google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest.session]. This
+   * field can be used by the webhook to identify a user.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * </pre>
+   *
+   * <code>string session = 1 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The session.
+   */
+  java.lang.String getSession();
+  /**
+   *
+   *
+   * <pre>
+   * Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * The unique identifier of the [session][google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest.session]. This
+   * field can be used by the webhook to identify a user.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * </pre>
+   *
+   * <code>string session = 1 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for session.
+   */
+  com.google.protobuf.ByteString getSessionBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Optional for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * All parameters collected from forms and intents during the session.
+   * Parameters can be created, updated, or removed by the webhook. To remove a
+   * parameter from the session, the webhook should explicitly set the parameter
+   * value to null in [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The map is keyed by parameters'
+   * display names.
+   * </pre>
+   *
+   * <code>map&lt;string, .google.protobuf.Value&gt; parameters = 2;</code>
+   */
+  int getParametersCount();
+  /**
+   *
+   *
+   * <pre>
+   * Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Optional for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * All parameters collected from forms and intents during the session.
+   * Parameters can be created, updated, or removed by the webhook. To remove a
+   * parameter from the session, the webhook should explicitly set the parameter
+   * value to null in [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The map is keyed by parameters'
+   * display names.
+   * </pre>
+   *
+   * <code>map&lt;string, .google.protobuf.Value&gt; parameters = 2;</code>
+   */
+  boolean containsParameters(java.lang.String key);
+  /** Use {@link #getParametersMap()} instead. */
+  @java.lang.Deprecated
+  java.util.Map<java.lang.String, com.google.protobuf.Value> getParameters();
+  /**
+   *
+   *
+   * <pre>
+   * Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Optional for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * All parameters collected from forms and intents during the session.
+   * Parameters can be created, updated, or removed by the webhook. To remove a
+   * parameter from the session, the webhook should explicitly set the parameter
+   * value to null in [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The map is keyed by parameters'
+   * display names.
+   * </pre>
+   *
+   * <code>map&lt;string, .google.protobuf.Value&gt; parameters = 2;</code>
+   */
+  java.util.Map<java.lang.String, com.google.protobuf.Value> getParametersMap();
+  /**
+   *
+   *
+   * <pre>
+   * Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Optional for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * All parameters collected from forms and intents during the session.
+   * Parameters can be created, updated, or removed by the webhook. To remove a
+   * parameter from the session, the webhook should explicitly set the parameter
+   * value to null in [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The map is keyed by parameters'
+   * display names.
+   * </pre>
+   *
+   * <code>map&lt;string, .google.protobuf.Value&gt; parameters = 2;</code>
+   */
+  com.google.protobuf.Value getParametersOrDefault(
+      java.lang.String key, com.google.protobuf.Value defaultValue);
+  /**
+   *
+   *
+   * <pre>
+   * Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Optional for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+   * All parameters collected from forms and intents during the session.
+   * Parameters can be created, updated, or removed by the webhook. To remove a
+   * parameter from the session, the webhook should explicitly set the parameter
+   * value to null in [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The map is keyed by parameters'
+   * display names.
+   * </pre>
+   *
+   * <code>map&lt;string, .google.protobuf.Value&gt; parameters = 2;</code>
+   */
+  com.google.protobuf.Value getParametersOrThrow(java.lang.String key);
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionName.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionName.java
new file mode 100644
index 000000000..f97656188
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionName.java
@@ -0,0 +1,424 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.pathtemplate.ValidationException;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+
+/** AUTO-GENERATED DOCUMENTATION AND CLASS */
+@javax.annotation.Generated("by GAPIC protoc plugin")
+public class SessionName implements ResourceName {
+
+  @Deprecated
+  protected SessionName() {}
+
+  private static final PathTemplate PROJECT_LOCATION_AGENT_SESSION_PATH_TEMPLATE =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/agents/{agent}/sessions/{session}");
+  private static final PathTemplate PROJECT_LOCATION_AGENT_ENVIRONMENT_SESSION_PATH_TEMPLATE =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/agents/{agent}/environments/{environment}/sessions/{session}");
+
+  private volatile Map<String, String> fieldValuesMap;
+  private PathTemplate pathTemplate;
+  private String fixedValue;
+
+  private String project;
+  private String location;
+  private String agent;
+  private String session;
+  private String environment;
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public String getAgent() {
+    return agent;
+  }
+
+  public String getSession() {
+    return session;
+  }
+
+  public String getEnvironment() {
+    return environment;
+  }
+
+  private SessionName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    agent = Preconditions.checkNotNull(builder.getAgent());
+    session = Preconditions.checkNotNull(builder.getSession());
+    pathTemplate = PROJECT_LOCATION_AGENT_SESSION_PATH_TEMPLATE;
+  }
+
+  private SessionName(ProjectLocationAgentEnvironmentSessionBuilder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    agent = Preconditions.checkNotNull(builder.getAgent());
+    environment = Preconditions.checkNotNull(builder.getEnvironment());
+    session = Preconditions.checkNotNull(builder.getSession());
+    pathTemplate = PROJECT_LOCATION_AGENT_ENVIRONMENT_SESSION_PATH_TEMPLATE;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  @BetaApi("The per-pattern Builders are not stable yet and may be changed in the future.")
+  public static Builder newProjectLocationAgentSessionBuilder() {
+    return new Builder();
+  }
+
+  @BetaApi("The per-pattern Builders are not stable yet and may be changed in the future.")
+  public static ProjectLocationAgentEnvironmentSessionBuilder
+      newProjectLocationAgentEnvironmentSessionBuilder() {
+    return new ProjectLocationAgentEnvironmentSessionBuilder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  public static SessionName of(String project, String location, String agent, String session) {
+    return newProjectLocationAgentSessionBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setSession(session)
+        .build();
+  }
+
+  @BetaApi("The static create methods are not stable yet and may be changed in the future.")
+  public static SessionName ofProjectLocationAgentSessionName(
+      String project, String location, String agent, String session) {
+    return newProjectLocationAgentSessionBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setSession(session)
+        .build();
+  }
+
+  @BetaApi("The static create methods are not stable yet and may be changed in the future.")
+  public static SessionName ofProjectLocationAgentEnvironmentSessionName(
+      String project, String location, String agent, String environment, String session) {
+    return newProjectLocationAgentEnvironmentSessionBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setEnvironment(environment)
+        .setSession(session)
+        .build();
+  }
+
+  public static String format(String project, String location, String agent, String session) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setSession(session)
+        .build()
+        .toString();
+  }
+
+  @BetaApi("The static format methods are not stable yet and may be changed in the future.")
+  public static String formatProjectLocationAgentSessionName(
+      String project, String location, String agent, String session) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setSession(session)
+        .build()
+        .toString();
+  }
+
+  @BetaApi("The static format methods are not stable yet and may be changed in the future.")
+  public static String formatProjectLocationAgentEnvironmentSessionName(
+      String project, String location, String agent, String environment, String session) {
+    return newProjectLocationAgentEnvironmentSessionBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setEnvironment(environment)
+        .setSession(session)
+        .build()
+        .toString();
+  }
+
+  public static SessionName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    if (PROJECT_LOCATION_AGENT_SESSION_PATH_TEMPLATE.matches(formattedString)) {
+      Map<String, String> matchMap =
+          PROJECT_LOCATION_AGENT_SESSION_PATH_TEMPLATE.match(formattedString);
+      return ofProjectLocationAgentSessionName(
+          matchMap.get("project"),
+          matchMap.get("location"),
+          matchMap.get("agent"),
+          matchMap.get("session"));
+    } else if (PROJECT_LOCATION_AGENT_ENVIRONMENT_SESSION_PATH_TEMPLATE.matches(formattedString)) {
+      Map<String, String> matchMap =
+          PROJECT_LOCATION_AGENT_ENVIRONMENT_SESSION_PATH_TEMPLATE.match(formattedString);
+      return ofProjectLocationAgentEnvironmentSessionName(
+          matchMap.get("project"),
+          matchMap.get("location"),
+          matchMap.get("agent"),
+          matchMap.get("environment"),
+          matchMap.get("session"));
+    }
+    throw new ValidationException("JobName.parse: formattedString not in valid format");
+  }
+
+  public static List<SessionName> parseList(List<String> formattedStrings) {
+    List<SessionName> list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List<String> toStringList(List<SessionName> values) {
+    List<String> list = new ArrayList<>(values.size());
+    for (SessionName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PROJECT_LOCATION_AGENT_SESSION_PATH_TEMPLATE.matches(formattedString)
+        || PROJECT_LOCATION_AGENT_ENVIRONMENT_SESSION_PATH_TEMPLATE.matches(formattedString);
+  }
+
+  @Override
+  public Map<String, String> getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder<String, String> fieldMapBuilder = ImmutableMap.builder();
+          if (project != null) {
+            fieldMapBuilder.put("project", project);
+          }
+          if (location != null) {
+            fieldMapBuilder.put("location", location);
+          }
+          if (agent != null) {
+            fieldMapBuilder.put("agent", agent);
+          }
+          if (session != null) {
+            fieldMapBuilder.put("session", session);
+          }
+          if (environment != null) {
+            fieldMapBuilder.put("environment", environment);
+          }
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return fixedValue != null ? fixedValue : pathTemplate.instantiate(getFieldValuesMap());
+  }
+
+  /** Builder for projects/{project}/locations/{location}/agents/{agent}/sessions/{session}. */
+  public static class Builder {
+
+    private String project;
+    private String location;
+    private String agent;
+    private String session;
+
+    protected Builder() {}
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getAgent() {
+      return agent;
+    }
+
+    public String getSession() {
+      return session;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public Builder setAgent(String agent) {
+      this.agent = agent;
+      return this;
+    }
+
+    public Builder setSession(String session) {
+      this.session = session;
+      return this;
+    }
+
+    private Builder(SessionName sessionName) {
+      Preconditions.checkArgument(
+          sessionName.pathTemplate == PROJECT_LOCATION_AGENT_SESSION_PATH_TEMPLATE,
+          "toBuilder is only supported when SessionName has the pattern of "
+              + "projects/{project}/locations/{location}/agents/{agent}/sessions/{session}.");
+      project = sessionName.project;
+      location = sessionName.location;
+      agent = sessionName.agent;
+      session = sessionName.session;
+    }
+
+    public SessionName build() {
+      return new SessionName(this);
+    }
+  }
+
+  /**
+   * Builder for
+   * projects/{project}/locations/{location}/agents/{agent}/environments/{environment}/sessions/{session}.
+   */
+  @BetaApi("The per-pattern Builders are not stable yet and may be changed in the future.")
+  public static class ProjectLocationAgentEnvironmentSessionBuilder {
+
+    private String project;
+    private String location;
+    private String agent;
+    private String environment;
+    private String session;
+
+    private ProjectLocationAgentEnvironmentSessionBuilder() {}
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getAgent() {
+      return agent;
+    }
+
+    public String getEnvironment() {
+      return environment;
+    }
+
+    public String getSession() {
+      return session;
+    }
+
+    public ProjectLocationAgentEnvironmentSessionBuilder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public ProjectLocationAgentEnvironmentSessionBuilder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public ProjectLocationAgentEnvironmentSessionBuilder setAgent(String agent) {
+      this.agent = agent;
+      return this;
+    }
+
+    public ProjectLocationAgentEnvironmentSessionBuilder setEnvironment(String environment) {
+      this.environment = environment;
+      return this;
+    }
+
+    public ProjectLocationAgentEnvironmentSessionBuilder setSession(String session) {
+      this.session = session;
+      return this;
+    }
+
+    public SessionName build() {
+      return new SessionName(this);
+    }
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o != null || getClass() == o.getClass()) {
+      SessionName that = (SessionName) o;
+      return (Objects.equals(this.project, that.project))
+          && (Objects.equals(this.location, that.location))
+          && (Objects.equals(this.agent, that.agent))
+          && (Objects.equals(this.session, that.session))
+          && (Objects.equals(this.environment, that.environment));
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= Objects.hashCode(fixedValue);
+    h *= 1000003;
+    h ^= Objects.hashCode(project);
+    h *= 1000003;
+    h ^= Objects.hashCode(location);
+    h *= 1000003;
+    h ^= Objects.hashCode(agent);
+    h *= 1000003;
+    h ^= Objects.hashCode(session);
+    h *= 1000003;
+    h ^= Objects.hashCode(environment);
+    return h;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionProto.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionProto.java
new file mode 100644
index 000000000..d3de77595
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionProto.java
@@ -0,0 +1,449 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public final class SessionProto {
+  private SessionProto() {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistryLite registry) {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions((com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DetectIntentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DetectIntentRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DetectIntentResponse_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DetectIntentResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingDetectIntentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingDetectIntentRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingDetectIntentResponse_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingDetectIntentResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingRecognitionResult_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingRecognitionResult_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_QueryParameters_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_QueryParameters_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_QueryInput_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_QueryInput_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_QueryResult_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_QueryResult_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_TextInput_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_TextInput_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_IntentInput_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_IntentInput_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_AudioInput_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_AudioInput_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Match_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Match_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_MatchIntentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_MatchIntentRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_MatchIntentResponse_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_MatchIntentResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_FulfillIntentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_FulfillIntentRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_FulfillIntentResponse_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_FulfillIntentResponse_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
+    return descriptor;
+  }
+
+  private static com.google.protobuf.Descriptors.FileDescriptor descriptor;
+
+  static {
+    java.lang.String[] descriptorData = {
+      "\n0google/cloud/dialogflow/cx/v3beta1/ses"
+          + "sion.proto\022\"google.cloud.dialogflow.cx.v"
+          + "3beta1\032\034google/api/annotations.proto\032\037go"
+          + "ogle/api/field_behavior.proto\032\031google/ap"
+          + "i/resource.proto\0325google/cloud/dialogflo"
+          + "w/cx/v3beta1/audio_config.proto\032/google/"
+          + "cloud/dialogflow/cx/v3beta1/intent.proto"
+          + "\032-google/cloud/dialogflow/cx/v3beta1/pag"
+          + "e.proto\0329google/cloud/dialogflow/cx/v3be"
+          + "ta1/response_message.proto\032<google/cloud"
+          + "/dialogflow/cx/v3beta1/session_entity_ty"
+          + "pe.proto\032\036google/protobuf/duration.proto"
+          + "\032\034google/protobuf/struct.proto\032\027google/r"
+          + "pc/status.proto\032\030google/type/latlng.prot"
+          + "o\032\027google/api/client.proto\"\272\002\n\023DetectInt"
+          + "entRequest\022:\n\007session\030\001 \001(\tB)\340A\002\372A#\n!dia"
+          + "logflow.googleapis.com/Session\022I\n\014query_"
+          + "params\030\002 \001(\01323.google.cloud.dialogflow.c"
+          + "x.v3beta1.QueryParameters\022H\n\013query_input"
+          + "\030\003 \001(\0132..google.cloud.dialogflow.cx.v3be"
+          + "ta1.QueryInputB\003\340A\002\022R\n\023output_audio_conf"
+          + "ig\030\004 \001(\01325.google.cloud.dialogflow.cx.v3"
+          + "beta1.OutputAudioConfig\"\334\001\n\024DetectIntent"
+          + "Response\022\023\n\013response_id\030\001 \001(\t\022E\n\014query_r"
+          + "esult\030\002 \001(\0132/.google.cloud.dialogflow.cx"
+          + ".v3beta1.QueryResult\022\024\n\014output_audio\030\004 \001"
+          + "(\014\022R\n\023output_audio_config\030\005 \001(\01325.google"
+          + ".cloud.dialogflow.cx.v3beta1.OutputAudio"
+          + "Config\"\300\002\n\034StreamingDetectIntentRequest\022"
+          + "7\n\007session\030\001 \001(\tB&\372A#\n!dialogflow.google"
+          + "apis.com/Session\022I\n\014query_params\030\002 \001(\01323"
+          + ".google.cloud.dialogflow.cx.v3beta1.Quer"
+          + "yParameters\022H\n\013query_input\030\003 \001(\0132..googl"
+          + "e.cloud.dialogflow.cx.v3beta1.QueryInput"
+          + "B\003\340A\002\022R\n\023output_audio_config\030\004 \001(\01325.goo"
+          + "gle.cloud.dialogflow.cx.v3beta1.OutputAu"
+          + "dioConfig\"\345\001\n\035StreamingDetectIntentRespo"
+          + "nse\022\\\n\022recognition_result\030\001 \001(\0132>.google"
+          + ".cloud.dialogflow.cx.v3beta1.StreamingRe"
+          + "cognitionResultH\000\022Z\n\026detect_intent_respo"
+          + "nse\030\002 \001(\01328.google.cloud.dialogflow.cx.v"
+          + "3beta1.DetectIntentResponseH\000B\n\n\010respons"
+          + "e\"\251\003\n\032StreamingRecognitionResult\022`\n\014mess"
+          + "age_type\030\001 \001(\0162J.google.cloud.dialogflow"
+          + ".cx.v3beta1.StreamingRecognitionResult.M"
+          + "essageType\022\022\n\ntranscript\030\002 \001(\t\022\020\n\010is_fin"
+          + "al\030\003 \001(\010\022\022\n\nconfidence\030\004 \001(\002\022\021\n\tstabilit"
+          + "y\030\006 \001(\002\022L\n\020speech_word_info\030\007 \003(\01322.goog"
+          + "le.cloud.dialogflow.cx.v3beta1.SpeechWor"
+          + "dInfo\0224\n\021speech_end_offset\030\010 \001(\0132\031.googl"
+          + "e.protobuf.Duration\"X\n\013MessageType\022\034\n\030ME"
+          + "SSAGE_TYPE_UNSPECIFIED\020\000\022\016\n\nTRANSCRIPT\020\001"
+          + "\022\033\n\027END_OF_SINGLE_UTTERANCE\020\002\"\373\001\n\017QueryP"
+          + "arameters\022\021\n\ttime_zone\030\001 \001(\t\022)\n\014geo_loca"
+          + "tion\030\002 \001(\0132\023.google.type.LatLng\022S\n\024sessi"
+          + "on_entity_types\030\003 \003(\01325.google.cloud.dia"
+          + "logflow.cx.v3beta1.SessionEntityType\022(\n\007"
+          + "payload\030\004 \001(\0132\027.google.protobuf.Struct\022+"
+          + "\n\nparameters\030\005 \001(\0132\027.google.protobuf.Str"
+          + "uct\"\364\001\n\nQueryInput\022=\n\004text\030\002 \001(\0132-.googl"
+          + "e.cloud.dialogflow.cx.v3beta1.TextInputH"
+          + "\000\022A\n\006intent\030\003 \001(\0132/.google.cloud.dialogf"
+          + "low.cx.v3beta1.IntentInputH\000\022?\n\005audio\030\005 "
+          + "\001(\0132..google.cloud.dialogflow.cx.v3beta1"
+          + ".AudioInputH\000\022\032\n\rlanguage_code\030\004 \001(\tB\003\340A"
+          + "\002B\007\n\005input\"\371\004\n\013QueryResult\022\016\n\004text\030\001 \001(\t"
+          + "H\000\022\030\n\016trigger_intent\030\013 \001(\tH\000\022\024\n\ntranscri"
+          + "pt\030\014 \001(\tH\000\022\027\n\rtrigger_event\030\016 \001(\tH\000\022\025\n\rl"
+          + "anguage_code\030\002 \001(\t\022+\n\nparameters\030\003 \001(\0132\027"
+          + ".google.protobuf.Struct\022N\n\021response_mess"
+          + "ages\030\004 \003(\01323.google.cloud.dialogflow.cx."
+          + "v3beta1.ResponseMessage\022,\n\020webhook_statu"
+          + "ses\030\r \003(\0132\022.google.rpc.Status\0221\n\020webhook"
+          + "_payloads\030\006 \003(\0132\027.google.protobuf.Struct"
+          + "\022>\n\014current_page\030\007 \001(\0132(.google.cloud.di"
+          + "alogflow.cx.v3beta1.Page\022>\n\006intent\030\010 \001(\013"
+          + "2*.google.cloud.dialogflow.cx.v3beta1.In"
+          + "tentB\002\030\001\022\'\n\033intent_detection_confidence\030"
+          + "\t \001(\002B\002\030\001\0228\n\005match\030\017 \001(\0132).google.cloud."
+          + "dialogflow.cx.v3beta1.Match\0220\n\017diagnosti"
+          + "c_info\030\n \001(\0132\027.google.protobuf.StructB\007\n"
+          + "\005query\"\036\n\tTextInput\022\021\n\004text\030\001 \001(\tB\003\340A\002\"G"
+          + "\n\013IntentInput\0228\n\006intent\030\001 \001(\tB(\340A\002\372A\"\n d"
+          + "ialogflow.googleapis.com/Intent\"f\n\nAudio"
+          + "Input\022I\n\006config\030\001 \001(\01324.google.cloud.dia"
+          + "logflow.cx.v3beta1.InputAudioConfigB\003\340A\002"
+          + "\022\r\n\005audio\030\002 \001(\014\"\340\002\n\005Match\022:\n\006intent\030\001 \001("
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+          + "ntent\022+\n\nparameters\030\002 \001(\0132\027.google.proto"
+          + "buf.Struct\022\026\n\016resolved_input\030\003 \001(\t\022G\n\nma"
+          + "tch_type\030\004 \001(\01623.google.cloud.dialogflow"
+          + ".cx.v3beta1.Match.MatchType\022\022\n\nconfidenc"
+          + "e\030\005 \001(\002\"y\n\tMatchType\022\032\n\026MATCH_TYPE_UNSPE"
+          + "CIFIED\020\000\022\n\n\006INTENT\020\001\022\021\n\rDIRECT_INTENT\020\002\022"
+          + "\025\n\021PARAMETER_FILLING\020\003\022\014\n\010NO_MATCH\020\004\022\014\n\010"
+          + "NO_INPUT\020\005\"\345\001\n\022MatchIntentRequest\022:\n\007ses"
+          + "sion\030\001 \001(\tB)\340A\002\372A#\n!dialogflow.googleapi"
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+          + "rameters\022H\n\013query_input\030\003 \001(\0132..google.c"
+          + "loud.dialogflow.cx.v3beta1.QueryInputB\003\340"
+          + "A\002\"\332\001\n\023MatchIntentResponse\022\016\n\004text\030\001 \001(\t"
+          + "H\000\022\030\n\016trigger_intent\030\002 \001(\tH\000\022\024\n\ntranscri"
+          + "pt\030\003 \001(\tH\000\022:\n\007matches\030\004 \003(\0132).google.clo"
+          + "ud.dialogflow.cx.v3beta1.Match\022>\n\014curren"
+          + "t_page\030\005 \001(\0132(.google.cloud.dialogflow.c"
+          + "x.v3beta1.PageB\007\n\005query\"\372\001\n\024FulfillInten"
+          + "tRequest\022T\n\024match_intent_request\030\001 \001(\01326"
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+          + "hIntentRequest\0228\n\005match\030\002 \001(\0132).google.c"
+          + "loud.dialogflow.cx.v3beta1.Match\022R\n\023outp"
+          + "ut_audio_config\030\003 \001(\01325.google.cloud.dia"
+          + "logflow.cx.v3beta1.OutputAudioConfig\"\335\001\n"
+          + "\025FulfillIntentResponse\022\023\n\013response_id\030\001 "
+          + "\001(\t\022E\n\014query_result\030\002 \001(\0132/.google.cloud"
+          + ".dialogflow.cx.v3beta1.QueryResult\022\024\n\014ou"
+          + "tput_audio\030\003 \001(\014\022R\n\023output_audio_config\030"
+          + "\004 \001(\01325.google.cloud.dialogflow.cx.v3bet"
+          + "a1.OutputAudioConfig2\317\007\n\010Sessions\022\330\001\n\014De"
+          + "tectIntent\0227.google.cloud.dialogflow.cx."
+          + "v3beta1.DetectIntentRequest\0328.google.clo"
+          + "ud.dialogflow.cx.v3beta1.DetectIntentRes"
+          + "ponse\"U\202\323\344\223\002O\"J/v3beta1/{session=project"
+          + "s/*/locations/*/agents/*/sessions/*}:det"
+          + "ectIntent:\001*\022\242\001\n\025StreamingDetectIntent\022@"
+          + ".google.cloud.dialogflow.cx.v3beta1.Stre"
+          + "amingDetectIntentRequest\032A.google.cloud."
+          + "dialogflow.cx.v3beta1.StreamingDetectInt"
+          + "entResponse\"\000(\0010\001\022\324\001\n\013MatchIntent\0226.goog"
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+          + "3beta1.MatchIntentResponse\"T\202\323\344\223\002N\"I/v3b"
+          + "eta1/{session=projects/*/locations/*/age"
+          + "nts/*/sessions/*}:matchIntent:\001*\022\361\001\n\rFul"
+          + "fillIntent\0228.google.cloud.dialogflow.cx."
+          + "v3beta1.FulfillIntentRequest\0329.google.cl"
+          + "oud.dialogflow.cx.v3beta1.FulfillIntentR"
+          + "esponse\"k\202\323\344\223\002e\"`/v3beta1/{match_intent_"
+          + "request.session=projects/*/locations/*/a"
+          + "gents/*/sessions/*}:fulfillIntent:\001*\032x\312A"
+          + "\031dialogflow.googleapis.com\322AYhttps://www"
+          + ".googleapis.com/auth/cloud-platform,http"
+          + "s://www.googleapis.com/auth/dialogflowB\203"
+          + "\003\n&com.google.cloud.dialogflow.cx.v3beta"
+          + "1B\014SessionProtoP\001ZDgoogle.golang.org/gen"
+          + "proto/googleapis/cloud/dialogflow/cx/v3b"
+          + "eta1;cx\370\001\001\242\002\002DF\252\002\"Google.Cloud.Dialogflo"
+          + "w.Cx.V3Beta1\352A\324\001\n!dialogflow.googleapis."
+          + "com/Session\022Iprojects/{project}/location"
+          + "s/{location}/agents/{agent}/sessions/{se"
+          + "ssion}\022dprojects/{project}/locations/{lo"
+          + "cation}/agents/{agent}/environments/{env"
+          + "ironment}/sessions/{session}b\006proto3"
+    };
+    descriptor =
+        com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
+            descriptorData,
+            new com.google.protobuf.Descriptors.FileDescriptor[] {
+              com.google.api.AnnotationsProto.getDescriptor(),
+              com.google.api.FieldBehaviorProto.getDescriptor(),
+              com.google.api.ResourceProto.getDescriptor(),
+              com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto.getDescriptor(),
+              com.google.cloud.dialogflow.cx.v3beta1.IntentProto.getDescriptor(),
+              com.google.cloud.dialogflow.cx.v3beta1.PageProto.getDescriptor(),
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto.getDescriptor(),
+              com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto.getDescriptor(),
+              com.google.protobuf.DurationProto.getDescriptor(),
+              com.google.protobuf.StructProto.getDescriptor(),
+              com.google.rpc.StatusProto.getDescriptor(),
+              com.google.type.LatLngProto.getDescriptor(),
+              com.google.api.ClientProto.getDescriptor(),
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DetectIntentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DetectIntentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_DetectIntentRequest_descriptor,
+            new java.lang.String[] {
+              "Session", "QueryParams", "QueryInput", "OutputAudioConfig",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DetectIntentResponse_descriptor =
+        getDescriptor().getMessageTypes().get(1);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DetectIntentResponse_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_DetectIntentResponse_descriptor,
+            new java.lang.String[] {
+              "ResponseId", "QueryResult", "OutputAudio", "OutputAudioConfig",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingDetectIntentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(2);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingDetectIntentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingDetectIntentRequest_descriptor,
+            new java.lang.String[] {
+              "Session", "QueryParams", "QueryInput", "OutputAudioConfig",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingDetectIntentResponse_descriptor =
+        getDescriptor().getMessageTypes().get(3);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingDetectIntentResponse_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingDetectIntentResponse_descriptor,
+            new java.lang.String[] {
+              "RecognitionResult", "DetectIntentResponse", "Response",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingRecognitionResult_descriptor =
+        getDescriptor().getMessageTypes().get(4);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingRecognitionResult_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingRecognitionResult_descriptor,
+            new java.lang.String[] {
+              "MessageType",
+              "Transcript",
+              "IsFinal",
+              "Confidence",
+              "Stability",
+              "SpeechWordInfo",
+              "SpeechEndOffset",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_QueryParameters_descriptor =
+        getDescriptor().getMessageTypes().get(5);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_QueryParameters_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_QueryParameters_descriptor,
+            new java.lang.String[] {
+              "TimeZone", "GeoLocation", "SessionEntityTypes", "Payload", "Parameters",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_QueryInput_descriptor =
+        getDescriptor().getMessageTypes().get(6);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_QueryInput_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_QueryInput_descriptor,
+            new java.lang.String[] {
+              "Text", "Intent", "Audio", "LanguageCode", "Input",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_QueryResult_descriptor =
+        getDescriptor().getMessageTypes().get(7);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_QueryResult_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_QueryResult_descriptor,
+            new java.lang.String[] {
+              "Text",
+              "TriggerIntent",
+              "Transcript",
+              "TriggerEvent",
+              "LanguageCode",
+              "Parameters",
+              "ResponseMessages",
+              "WebhookStatuses",
+              "WebhookPayloads",
+              "CurrentPage",
+              "Intent",
+              "IntentDetectionConfidence",
+              "Match",
+              "DiagnosticInfo",
+              "Query",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_TextInput_descriptor =
+        getDescriptor().getMessageTypes().get(8);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_TextInput_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_TextInput_descriptor,
+            new java.lang.String[] {
+              "Text",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_IntentInput_descriptor =
+        getDescriptor().getMessageTypes().get(9);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_IntentInput_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_IntentInput_descriptor,
+            new java.lang.String[] {
+              "Intent",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_AudioInput_descriptor =
+        getDescriptor().getMessageTypes().get(10);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_AudioInput_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_AudioInput_descriptor,
+            new java.lang.String[] {
+              "Config", "Audio",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Match_descriptor =
+        getDescriptor().getMessageTypes().get(11);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Match_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_Match_descriptor,
+            new java.lang.String[] {
+              "Intent", "Parameters", "ResolvedInput", "MatchType", "Confidence",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_MatchIntentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(12);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_MatchIntentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_MatchIntentRequest_descriptor,
+            new java.lang.String[] {
+              "Session", "QueryParams", "QueryInput",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_MatchIntentResponse_descriptor =
+        getDescriptor().getMessageTypes().get(13);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_MatchIntentResponse_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_MatchIntentResponse_descriptor,
+            new java.lang.String[] {
+              "Text", "TriggerIntent", "Transcript", "Matches", "CurrentPage", "Query",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_FulfillIntentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(14);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_FulfillIntentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_FulfillIntentRequest_descriptor,
+            new java.lang.String[] {
+              "MatchIntentRequest", "Match", "OutputAudioConfig",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_FulfillIntentResponse_descriptor =
+        getDescriptor().getMessageTypes().get(15);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_FulfillIntentResponse_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_FulfillIntentResponse_descriptor,
+            new java.lang.String[] {
+              "ResponseId", "QueryResult", "OutputAudio", "OutputAudioConfig",
+            });
+    com.google.protobuf.ExtensionRegistry registry =
+        com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.ClientProto.defaultHost);
+    registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
+    registry.add(com.google.api.AnnotationsProto.http);
+    registry.add(com.google.api.ClientProto.oauthScopes);
+    registry.add(com.google.api.ResourceProto.resourceDefinition);
+    registry.add(com.google.api.ResourceProto.resourceReference);
+    com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
+        descriptor, registry);
+    com.google.api.AnnotationsProto.getDescriptor();
+    com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.api.ResourceProto.getDescriptor();
+    com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto.getDescriptor();
+    com.google.cloud.dialogflow.cx.v3beta1.IntentProto.getDescriptor();
+    com.google.cloud.dialogflow.cx.v3beta1.PageProto.getDescriptor();
+    com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto.getDescriptor();
+    com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto.getDescriptor();
+    com.google.protobuf.DurationProto.getDescriptor();
+    com.google.protobuf.StructProto.getDescriptor();
+    com.google.rpc.StatusProto.getDescriptor();
+    com.google.type.LatLngProto.getDescriptor();
+    com.google.api.ClientProto.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SpeechModelVariant.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SpeechModelVariant.java
new file mode 100644
index 000000000..12ee4584a
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SpeechModelVariant.java
@@ -0,0 +1,243 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/audio_config.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Variant of the specified [Speech model][google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.model] to use.
+ * See the [Cloud Speech
+ * documentation](https://cloud.google.com/speech-to-text/docs/enhanced-models)
+ * for which models have different variants. For example, the "phone_call" model
+ * has both a standard and an enhanced variant. When you use an enhanced model,
+ * you will generally receive higher quality results than for a standard model.
+ * </pre>
+ *
+ * Protobuf enum {@code google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant}
+ */
+public enum SpeechModelVariant implements com.google.protobuf.ProtocolMessageEnum {
+  /**
+   *
+   *
+   * <pre>
+   * No model variant specified. In this case Dialogflow defaults to
+   * USE_BEST_AVAILABLE.
+   * </pre>
+   *
+   * <code>SPEECH_MODEL_VARIANT_UNSPECIFIED = 0;</code>
+   */
+  SPEECH_MODEL_VARIANT_UNSPECIFIED(0),
+  /**
+   *
+   *
+   * <pre>
+   * Use the best available variant of the [Speech
+   * model][InputAudioConfig.model] that the caller is eligible for.
+   * Please see the [Dialogflow
+   * docs](https://cloud.google.com/dialogflow/docs/data-logging) for
+   * how to make your project eligible for enhanced models.
+   * </pre>
+   *
+   * <code>USE_BEST_AVAILABLE = 1;</code>
+   */
+  USE_BEST_AVAILABLE(1),
+  /**
+   *
+   *
+   * <pre>
+   * Use standard model variant even if an enhanced model is available.  See the
+   * [Cloud Speech
+   * documentation](https://cloud.google.com/speech-to-text/docs/enhanced-models)
+   * for details about enhanced models.
+   * </pre>
+   *
+   * <code>USE_STANDARD = 2;</code>
+   */
+  USE_STANDARD(2),
+  /**
+   *
+   *
+   * <pre>
+   * Use an enhanced model variant:
+   * * If an enhanced variant does not exist for the given
+   *   [model][google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.model] and request language, Dialogflow falls
+   *   back to the standard variant.
+   *   The [Cloud Speech
+   *   documentation](https://cloud.google.com/speech-to-text/docs/enhanced-models)
+   *   describes which models have enhanced variants.
+   * * If the API caller isn't eligible for enhanced models, Dialogflow returns
+   *   an error.  Please see the [Dialogflow
+   *   docs](https://cloud.google.com/dialogflow/docs/data-logging)
+   *   for how to make your project eligible.
+   * </pre>
+   *
+   * <code>USE_ENHANCED = 3;</code>
+   */
+  USE_ENHANCED(3),
+  UNRECOGNIZED(-1),
+  ;
+
+  /**
+   *
+   *
+   * <pre>
+   * No model variant specified. In this case Dialogflow defaults to
+   * USE_BEST_AVAILABLE.
+   * </pre>
+   *
+   * <code>SPEECH_MODEL_VARIANT_UNSPECIFIED = 0;</code>
+   */
+  public static final int SPEECH_MODEL_VARIANT_UNSPECIFIED_VALUE = 0;
+  /**
+   *
+   *
+   * <pre>
+   * Use the best available variant of the [Speech
+   * model][InputAudioConfig.model] that the caller is eligible for.
+   * Please see the [Dialogflow
+   * docs](https://cloud.google.com/dialogflow/docs/data-logging) for
+   * how to make your project eligible for enhanced models.
+   * </pre>
+   *
+   * <code>USE_BEST_AVAILABLE = 1;</code>
+   */
+  public static final int USE_BEST_AVAILABLE_VALUE = 1;
+  /**
+   *
+   *
+   * <pre>
+   * Use standard model variant even if an enhanced model is available.  See the
+   * [Cloud Speech
+   * documentation](https://cloud.google.com/speech-to-text/docs/enhanced-models)
+   * for details about enhanced models.
+   * </pre>
+   *
+   * <code>USE_STANDARD = 2;</code>
+   */
+  public static final int USE_STANDARD_VALUE = 2;
+  /**
+   *
+   *
+   * <pre>
+   * Use an enhanced model variant:
+   * * If an enhanced variant does not exist for the given
+   *   [model][google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.model] and request language, Dialogflow falls
+   *   back to the standard variant.
+   *   The [Cloud Speech
+   *   documentation](https://cloud.google.com/speech-to-text/docs/enhanced-models)
+   *   describes which models have enhanced variants.
+   * * If the API caller isn't eligible for enhanced models, Dialogflow returns
+   *   an error.  Please see the [Dialogflow
+   *   docs](https://cloud.google.com/dialogflow/docs/data-logging)
+   *   for how to make your project eligible.
+   * </pre>
+   *
+   * <code>USE_ENHANCED = 3;</code>
+   */
+  public static final int USE_ENHANCED_VALUE = 3;
+
+  public final int getNumber() {
+    if (this == UNRECOGNIZED) {
+      throw new java.lang.IllegalArgumentException(
+          "Can't get the number of an unknown enum value.");
+    }
+    return value;
+  }
+
+  /**
+   * @param value The numeric wire value of the corresponding enum entry.
+   * @return The enum associated with the given numeric wire value.
+   * @deprecated Use {@link #forNumber(int)} instead.
+   */
+  @java.lang.Deprecated
+  public static SpeechModelVariant valueOf(int value) {
+    return forNumber(value);
+  }
+
+  /**
+   * @param value The numeric wire value of the corresponding enum entry.
+   * @return The enum associated with the given numeric wire value.
+   */
+  public static SpeechModelVariant forNumber(int value) {
+    switch (value) {
+      case 0:
+        return SPEECH_MODEL_VARIANT_UNSPECIFIED;
+      case 1:
+        return USE_BEST_AVAILABLE;
+      case 2:
+        return USE_STANDARD;
+      case 3:
+        return USE_ENHANCED;
+      default:
+        return null;
+    }
+  }
+
+  public static com.google.protobuf.Internal.EnumLiteMap<SpeechModelVariant> internalGetValueMap() {
+    return internalValueMap;
+  }
+
+  private static final com.google.protobuf.Internal.EnumLiteMap<SpeechModelVariant>
+      internalValueMap =
+          new com.google.protobuf.Internal.EnumLiteMap<SpeechModelVariant>() {
+            public SpeechModelVariant findValueByNumber(int number) {
+              return SpeechModelVariant.forNumber(number);
+            }
+          };
+
+  public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+    if (this == UNRECOGNIZED) {
+      throw new java.lang.IllegalStateException(
+          "Can't get the descriptor of an unrecognized enum value.");
+    }
+    return getDescriptor().getValues().get(ordinal());
+  }
+
+  public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+    return getDescriptor();
+  }
+
+  public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto.getDescriptor()
+        .getEnumTypes()
+        .get(1);
+  }
+
+  private static final SpeechModelVariant[] VALUES = values();
+
+  public static SpeechModelVariant valueOf(
+      com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+    if (desc.getType() != getDescriptor()) {
+      throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
+    }
+    if (desc.getIndex() == -1) {
+      return UNRECOGNIZED;
+    }
+    return VALUES[desc.getIndex()];
+  }
+
+  private final int value;
+
+  private SpeechModelVariant(int value) {
+    this.value = value;
+  }
+
+  // @@protoc_insertion_point(enum_scope:google.cloud.dialogflow.cx.v3beta1.SpeechModelVariant)
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SpeechToTextSettings.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SpeechToTextSettings.java
new file mode 100644
index 000000000..ea933c8cc
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SpeechToTextSettings.java
@@ -0,0 +1,547 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Settings related to speech recognition.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings}
+ */
+public final class SpeechToTextSettings extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings)
+    SpeechToTextSettingsOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use SpeechToTextSettings.newBuilder() to construct.
+  private SpeechToTextSettings(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private SpeechToTextSettings() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new SpeechToTextSettings();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private SpeechToTextSettings(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 8:
+            {
+              enableSpeechAdaptation_ = input.readBool();
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_SpeechToTextSettings_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_SpeechToTextSettings_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings.class,
+            com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings.Builder.class);
+  }
+
+  public static final int ENABLE_SPEECH_ADAPTATION_FIELD_NUMBER = 1;
+  private boolean enableSpeechAdaptation_;
+  /**
+   *
+   *
+   * <pre>
+   * Whether to use speech adaptation for speech recognition.
+   * </pre>
+   *
+   * <code>bool enable_speech_adaptation = 1;</code>
+   *
+   * @return The enableSpeechAdaptation.
+   */
+  @java.lang.Override
+  public boolean getEnableSpeechAdaptation() {
+    return enableSpeechAdaptation_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (enableSpeechAdaptation_ != false) {
+      output.writeBool(1, enableSpeechAdaptation_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (enableSpeechAdaptation_ != false) {
+      size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enableSpeechAdaptation_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings other =
+        (com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings) obj;
+
+    if (getEnableSpeechAdaptation() != other.getEnableSpeechAdaptation()) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + ENABLE_SPEECH_ADAPTATION_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnableSpeechAdaptation());
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Settings related to speech recognition.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings)
+      com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettingsOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_SpeechToTextSettings_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_SpeechToTextSettings_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings.class,
+              com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      enableSpeechAdaptation_ = false;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_SpeechToTextSettings_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings build() {
+      com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings result =
+          new com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings(this);
+      result.enableSpeechAdaptation_ = enableSpeechAdaptation_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings.getDefaultInstance())
+        return this;
+      if (other.getEnableSpeechAdaptation() != false) {
+        setEnableSpeechAdaptation(other.getEnableSpeechAdaptation());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private boolean enableSpeechAdaptation_;
+    /**
+     *
+     *
+     * <pre>
+     * Whether to use speech adaptation for speech recognition.
+     * </pre>
+     *
+     * <code>bool enable_speech_adaptation = 1;</code>
+     *
+     * @return The enableSpeechAdaptation.
+     */
+    @java.lang.Override
+    public boolean getEnableSpeechAdaptation() {
+      return enableSpeechAdaptation_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Whether to use speech adaptation for speech recognition.
+     * </pre>
+     *
+     * <code>bool enable_speech_adaptation = 1;</code>
+     *
+     * @param value The enableSpeechAdaptation to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEnableSpeechAdaptation(boolean value) {
+
+      enableSpeechAdaptation_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Whether to use speech adaptation for speech recognition.
+     * </pre>
+     *
+     * <code>bool enable_speech_adaptation = 1;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearEnableSpeechAdaptation() {
+
+      enableSpeechAdaptation_ = false;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<SpeechToTextSettings> PARSER =
+      new com.google.protobuf.AbstractParser<SpeechToTextSettings>() {
+        @java.lang.Override
+        public SpeechToTextSettings parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new SpeechToTextSettings(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<SpeechToTextSettings> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<SpeechToTextSettings> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SpeechToTextSettingsOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SpeechToTextSettingsOrBuilder.java
new file mode 100644
index 000000000..f09a21717
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SpeechToTextSettingsOrBuilder.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface SpeechToTextSettingsOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.SpeechToTextSettings)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Whether to use speech adaptation for speech recognition.
+   * </pre>
+   *
+   * <code>bool enable_speech_adaptation = 1;</code>
+   *
+   * @return The enableSpeechAdaptation.
+   */
+  boolean getEnableSpeechAdaptation();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SpeechWordInfo.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SpeechWordInfo.java
new file mode 100644
index 000000000..16c8bca28
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SpeechWordInfo.java
@@ -0,0 +1,1336 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/audio_config.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Information for a word recognized by the speech recognizer.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo}
+ */
+public final class SpeechWordInfo extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo)
+    SpeechWordInfoOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use SpeechWordInfo.newBuilder() to construct.
+  private SpeechWordInfo(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private SpeechWordInfo() {
+    word_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new SpeechWordInfo();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private SpeechWordInfo(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
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+            done = true;
+            break;
+          case 10:
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+              com.google.protobuf.Duration.Builder subBuilder = null;
+              if (startOffset_ != null) {
+                subBuilder = startOffset_.toBuilder();
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+              startOffset_ =
+                  input.readMessage(com.google.protobuf.Duration.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(startOffset_);
+                startOffset_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 18:
+            {
+              com.google.protobuf.Duration.Builder subBuilder = null;
+              if (endOffset_ != null) {
+                subBuilder = endOffset_.toBuilder();
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+              endOffset_ =
+                  input.readMessage(com.google.protobuf.Duration.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(endOffset_);
+                endOffset_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              word_ = s;
+              break;
+            }
+          case 37:
+            {
+              confidence_ = input.readFloat();
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_SpeechWordInfo_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_SpeechWordInfo_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo.class,
+            com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo.Builder.class);
+  }
+
+  public static final int WORD_FIELD_NUMBER = 3;
+  private volatile java.lang.Object word_;
+  /**
+   *
+   *
+   * <pre>
+   * The word this info is for.
+   * </pre>
+   *
+   * <code>string word = 3;</code>
+   *
+   * @return The word.
+   */
+  @java.lang.Override
+  public java.lang.String getWord() {
+    java.lang.Object ref = word_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      word_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The word this info is for.
+   * </pre>
+   *
+   * <code>string word = 3;</code>
+   *
+   * @return The bytes for word.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getWordBytes() {
+    java.lang.Object ref = word_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      word_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int START_OFFSET_FIELD_NUMBER = 1;
+  private com.google.protobuf.Duration startOffset_;
+  /**
+   *
+   *
+   * <pre>
+   * Time offset relative to the beginning of the audio that corresponds to the
+   * start of the spoken word. This is an experimental feature and the accuracy
+   * of the time offset can vary.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration start_offset = 1;</code>
+   *
+   * @return Whether the startOffset field is set.
+   */
+  @java.lang.Override
+  public boolean hasStartOffset() {
+    return startOffset_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Time offset relative to the beginning of the audio that corresponds to the
+   * start of the spoken word. This is an experimental feature and the accuracy
+   * of the time offset can vary.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration start_offset = 1;</code>
+   *
+   * @return The startOffset.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Duration getStartOffset() {
+    return startOffset_ == null ? com.google.protobuf.Duration.getDefaultInstance() : startOffset_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Time offset relative to the beginning of the audio that corresponds to the
+   * start of the spoken word. This is an experimental feature and the accuracy
+   * of the time offset can vary.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration start_offset = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.DurationOrBuilder getStartOffsetOrBuilder() {
+    return getStartOffset();
+  }
+
+  public static final int END_OFFSET_FIELD_NUMBER = 2;
+  private com.google.protobuf.Duration endOffset_;
+  /**
+   *
+   *
+   * <pre>
+   * Time offset relative to the beginning of the audio that corresponds to the
+   * end of the spoken word. This is an experimental feature and the accuracy of
+   * the time offset can vary.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration end_offset = 2;</code>
+   *
+   * @return Whether the endOffset field is set.
+   */
+  @java.lang.Override
+  public boolean hasEndOffset() {
+    return endOffset_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Time offset relative to the beginning of the audio that corresponds to the
+   * end of the spoken word. This is an experimental feature and the accuracy of
+   * the time offset can vary.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration end_offset = 2;</code>
+   *
+   * @return The endOffset.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Duration getEndOffset() {
+    return endOffset_ == null ? com.google.protobuf.Duration.getDefaultInstance() : endOffset_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Time offset relative to the beginning of the audio that corresponds to the
+   * end of the spoken word. This is an experimental feature and the accuracy of
+   * the time offset can vary.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration end_offset = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.DurationOrBuilder getEndOffsetOrBuilder() {
+    return getEndOffset();
+  }
+
+  public static final int CONFIDENCE_FIELD_NUMBER = 4;
+  private float confidence_;
+  /**
+   *
+   *
+   * <pre>
+   * The Speech confidence between 0.0 and 1.0 for this word. A higher number
+   * indicates an estimated greater likelihood that the recognized word is
+   * correct. The default of 0.0 is a sentinel value indicating that confidence
+   * was not set.
+   * This field is not guaranteed to be fully stable over time for the same
+   * audio input. Users should also not rely on it to always be provided.
+   * </pre>
+   *
+   * <code>float confidence = 4;</code>
+   *
+   * @return The confidence.
+   */
+  @java.lang.Override
+  public float getConfidence() {
+    return confidence_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (startOffset_ != null) {
+      output.writeMessage(1, getStartOffset());
+    }
+    if (endOffset_ != null) {
+      output.writeMessage(2, getEndOffset());
+    }
+    if (!getWordBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, word_);
+    }
+    if (confidence_ != 0F) {
+      output.writeFloat(4, confidence_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (startOffset_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getStartOffset());
+    }
+    if (endOffset_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getEndOffset());
+    }
+    if (!getWordBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, word_);
+    }
+    if (confidence_ != 0F) {
+      size += com.google.protobuf.CodedOutputStream.computeFloatSize(4, confidence_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo other =
+        (com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo) obj;
+
+    if (!getWord().equals(other.getWord())) return false;
+    if (hasStartOffset() != other.hasStartOffset()) return false;
+    if (hasStartOffset()) {
+      if (!getStartOffset().equals(other.getStartOffset())) return false;
+    }
+    if (hasEndOffset() != other.hasEndOffset()) return false;
+    if (hasEndOffset()) {
+      if (!getEndOffset().equals(other.getEndOffset())) return false;
+    }
+    if (java.lang.Float.floatToIntBits(getConfidence())
+        != java.lang.Float.floatToIntBits(other.getConfidence())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + WORD_FIELD_NUMBER;
+    hash = (53 * hash) + getWord().hashCode();
+    if (hasStartOffset()) {
+      hash = (37 * hash) + START_OFFSET_FIELD_NUMBER;
+      hash = (53 * hash) + getStartOffset().hashCode();
+    }
+    if (hasEndOffset()) {
+      hash = (37 * hash) + END_OFFSET_FIELD_NUMBER;
+      hash = (53 * hash) + getEndOffset().hashCode();
+    }
+    hash = (37 * hash) + CONFIDENCE_FIELD_NUMBER;
+    hash = (53 * hash) + java.lang.Float.floatToIntBits(getConfidence());
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Information for a word recognized by the speech recognizer.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo)
+      com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfoOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_SpeechWordInfo_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_SpeechWordInfo_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo.class,
+              com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      word_ = "";
+
+      if (startOffsetBuilder_ == null) {
+        startOffset_ = null;
+      } else {
+        startOffset_ = null;
+        startOffsetBuilder_ = null;
+      }
+      if (endOffsetBuilder_ == null) {
+        endOffset_ = null;
+      } else {
+        endOffset_ = null;
+        endOffsetBuilder_ = null;
+      }
+      confidence_ = 0F;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_SpeechWordInfo_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo build() {
+      com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo result =
+          new com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo(this);
+      result.word_ = word_;
+      if (startOffsetBuilder_ == null) {
+        result.startOffset_ = startOffset_;
+      } else {
+        result.startOffset_ = startOffsetBuilder_.build();
+      }
+      if (endOffsetBuilder_ == null) {
+        result.endOffset_ = endOffset_;
+      } else {
+        result.endOffset_ = endOffsetBuilder_.build();
+      }
+      result.confidence_ = confidence_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo.getDefaultInstance())
+        return this;
+      if (!other.getWord().isEmpty()) {
+        word_ = other.word_;
+        onChanged();
+      }
+      if (other.hasStartOffset()) {
+        mergeStartOffset(other.getStartOffset());
+      }
+      if (other.hasEndOffset()) {
+        mergeEndOffset(other.getEndOffset());
+      }
+      if (other.getConfidence() != 0F) {
+        setConfidence(other.getConfidence());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object word_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The word this info is for.
+     * </pre>
+     *
+     * <code>string word = 3;</code>
+     *
+     * @return The word.
+     */
+    public java.lang.String getWord() {
+      java.lang.Object ref = word_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        word_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The word this info is for.
+     * </pre>
+     *
+     * <code>string word = 3;</code>
+     *
+     * @return The bytes for word.
+     */
+    public com.google.protobuf.ByteString getWordBytes() {
+      java.lang.Object ref = word_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        word_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The word this info is for.
+     * </pre>
+     *
+     * <code>string word = 3;</code>
+     *
+     * @param value The word to set.
+     * @return This builder for chaining.
+     */
+    public Builder setWord(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      word_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The word this info is for.
+     * </pre>
+     *
+     * <code>string word = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearWord() {
+
+      word_ = getDefaultInstance().getWord();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The word this info is for.
+     * </pre>
+     *
+     * <code>string word = 3;</code>
+     *
+     * @param value The bytes for word to set.
+     * @return This builder for chaining.
+     */
+    public Builder setWordBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      word_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.Duration startOffset_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Duration,
+            com.google.protobuf.Duration.Builder,
+            com.google.protobuf.DurationOrBuilder>
+        startOffsetBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Time offset relative to the beginning of the audio that corresponds to the
+     * start of the spoken word. This is an experimental feature and the accuracy
+     * of the time offset can vary.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration start_offset = 1;</code>
+     *
+     * @return Whether the startOffset field is set.
+     */
+    public boolean hasStartOffset() {
+      return startOffsetBuilder_ != null || startOffset_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset relative to the beginning of the audio that corresponds to the
+     * start of the spoken word. This is an experimental feature and the accuracy
+     * of the time offset can vary.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration start_offset = 1;</code>
+     *
+     * @return The startOffset.
+     */
+    public com.google.protobuf.Duration getStartOffset() {
+      if (startOffsetBuilder_ == null) {
+        return startOffset_ == null
+            ? com.google.protobuf.Duration.getDefaultInstance()
+            : startOffset_;
+      } else {
+        return startOffsetBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset relative to the beginning of the audio that corresponds to the
+     * start of the spoken word. This is an experimental feature and the accuracy
+     * of the time offset can vary.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration start_offset = 1;</code>
+     */
+    public Builder setStartOffset(com.google.protobuf.Duration value) {
+      if (startOffsetBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        startOffset_ = value;
+        onChanged();
+      } else {
+        startOffsetBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset relative to the beginning of the audio that corresponds to the
+     * start of the spoken word. This is an experimental feature and the accuracy
+     * of the time offset can vary.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration start_offset = 1;</code>
+     */
+    public Builder setStartOffset(com.google.protobuf.Duration.Builder builderForValue) {
+      if (startOffsetBuilder_ == null) {
+        startOffset_ = builderForValue.build();
+        onChanged();
+      } else {
+        startOffsetBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset relative to the beginning of the audio that corresponds to the
+     * start of the spoken word. This is an experimental feature and the accuracy
+     * of the time offset can vary.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration start_offset = 1;</code>
+     */
+    public Builder mergeStartOffset(com.google.protobuf.Duration value) {
+      if (startOffsetBuilder_ == null) {
+        if (startOffset_ != null) {
+          startOffset_ =
+              com.google.protobuf.Duration.newBuilder(startOffset_).mergeFrom(value).buildPartial();
+        } else {
+          startOffset_ = value;
+        }
+        onChanged();
+      } else {
+        startOffsetBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset relative to the beginning of the audio that corresponds to the
+     * start of the spoken word. This is an experimental feature and the accuracy
+     * of the time offset can vary.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration start_offset = 1;</code>
+     */
+    public Builder clearStartOffset() {
+      if (startOffsetBuilder_ == null) {
+        startOffset_ = null;
+        onChanged();
+      } else {
+        startOffset_ = null;
+        startOffsetBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset relative to the beginning of the audio that corresponds to the
+     * start of the spoken word. This is an experimental feature and the accuracy
+     * of the time offset can vary.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration start_offset = 1;</code>
+     */
+    public com.google.protobuf.Duration.Builder getStartOffsetBuilder() {
+
+      onChanged();
+      return getStartOffsetFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset relative to the beginning of the audio that corresponds to the
+     * start of the spoken word. This is an experimental feature and the accuracy
+     * of the time offset can vary.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration start_offset = 1;</code>
+     */
+    public com.google.protobuf.DurationOrBuilder getStartOffsetOrBuilder() {
+      if (startOffsetBuilder_ != null) {
+        return startOffsetBuilder_.getMessageOrBuilder();
+      } else {
+        return startOffset_ == null
+            ? com.google.protobuf.Duration.getDefaultInstance()
+            : startOffset_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset relative to the beginning of the audio that corresponds to the
+     * start of the spoken word. This is an experimental feature and the accuracy
+     * of the time offset can vary.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration start_offset = 1;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Duration,
+            com.google.protobuf.Duration.Builder,
+            com.google.protobuf.DurationOrBuilder>
+        getStartOffsetFieldBuilder() {
+      if (startOffsetBuilder_ == null) {
+        startOffsetBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.Duration,
+                com.google.protobuf.Duration.Builder,
+                com.google.protobuf.DurationOrBuilder>(
+                getStartOffset(), getParentForChildren(), isClean());
+        startOffset_ = null;
+      }
+      return startOffsetBuilder_;
+    }
+
+    private com.google.protobuf.Duration endOffset_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Duration,
+            com.google.protobuf.Duration.Builder,
+            com.google.protobuf.DurationOrBuilder>
+        endOffsetBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Time offset relative to the beginning of the audio that corresponds to the
+     * end of the spoken word. This is an experimental feature and the accuracy of
+     * the time offset can vary.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration end_offset = 2;</code>
+     *
+     * @return Whether the endOffset field is set.
+     */
+    public boolean hasEndOffset() {
+      return endOffsetBuilder_ != null || endOffset_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset relative to the beginning of the audio that corresponds to the
+     * end of the spoken word. This is an experimental feature and the accuracy of
+     * the time offset can vary.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration end_offset = 2;</code>
+     *
+     * @return The endOffset.
+     */
+    public com.google.protobuf.Duration getEndOffset() {
+      if (endOffsetBuilder_ == null) {
+        return endOffset_ == null ? com.google.protobuf.Duration.getDefaultInstance() : endOffset_;
+      } else {
+        return endOffsetBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset relative to the beginning of the audio that corresponds to the
+     * end of the spoken word. This is an experimental feature and the accuracy of
+     * the time offset can vary.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration end_offset = 2;</code>
+     */
+    public Builder setEndOffset(com.google.protobuf.Duration value) {
+      if (endOffsetBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        endOffset_ = value;
+        onChanged();
+      } else {
+        endOffsetBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset relative to the beginning of the audio that corresponds to the
+     * end of the spoken word. This is an experimental feature and the accuracy of
+     * the time offset can vary.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration end_offset = 2;</code>
+     */
+    public Builder setEndOffset(com.google.protobuf.Duration.Builder builderForValue) {
+      if (endOffsetBuilder_ == null) {
+        endOffset_ = builderForValue.build();
+        onChanged();
+      } else {
+        endOffsetBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset relative to the beginning of the audio that corresponds to the
+     * end of the spoken word. This is an experimental feature and the accuracy of
+     * the time offset can vary.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration end_offset = 2;</code>
+     */
+    public Builder mergeEndOffset(com.google.protobuf.Duration value) {
+      if (endOffsetBuilder_ == null) {
+        if (endOffset_ != null) {
+          endOffset_ =
+              com.google.protobuf.Duration.newBuilder(endOffset_).mergeFrom(value).buildPartial();
+        } else {
+          endOffset_ = value;
+        }
+        onChanged();
+      } else {
+        endOffsetBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset relative to the beginning of the audio that corresponds to the
+     * end of the spoken word. This is an experimental feature and the accuracy of
+     * the time offset can vary.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration end_offset = 2;</code>
+     */
+    public Builder clearEndOffset() {
+      if (endOffsetBuilder_ == null) {
+        endOffset_ = null;
+        onChanged();
+      } else {
+        endOffset_ = null;
+        endOffsetBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset relative to the beginning of the audio that corresponds to the
+     * end of the spoken word. This is an experimental feature and the accuracy of
+     * the time offset can vary.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration end_offset = 2;</code>
+     */
+    public com.google.protobuf.Duration.Builder getEndOffsetBuilder() {
+
+      onChanged();
+      return getEndOffsetFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset relative to the beginning of the audio that corresponds to the
+     * end of the spoken word. This is an experimental feature and the accuracy of
+     * the time offset can vary.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration end_offset = 2;</code>
+     */
+    public com.google.protobuf.DurationOrBuilder getEndOffsetOrBuilder() {
+      if (endOffsetBuilder_ != null) {
+        return endOffsetBuilder_.getMessageOrBuilder();
+      } else {
+        return endOffset_ == null ? com.google.protobuf.Duration.getDefaultInstance() : endOffset_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset relative to the beginning of the audio that corresponds to the
+     * end of the spoken word. This is an experimental feature and the accuracy of
+     * the time offset can vary.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration end_offset = 2;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Duration,
+            com.google.protobuf.Duration.Builder,
+            com.google.protobuf.DurationOrBuilder>
+        getEndOffsetFieldBuilder() {
+      if (endOffsetBuilder_ == null) {
+        endOffsetBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.Duration,
+                com.google.protobuf.Duration.Builder,
+                com.google.protobuf.DurationOrBuilder>(
+                getEndOffset(), getParentForChildren(), isClean());
+        endOffset_ = null;
+      }
+      return endOffsetBuilder_;
+    }
+
+    private float confidence_;
+    /**
+     *
+     *
+     * <pre>
+     * The Speech confidence between 0.0 and 1.0 for this word. A higher number
+     * indicates an estimated greater likelihood that the recognized word is
+     * correct. The default of 0.0 is a sentinel value indicating that confidence
+     * was not set.
+     * This field is not guaranteed to be fully stable over time for the same
+     * audio input. Users should also not rely on it to always be provided.
+     * </pre>
+     *
+     * <code>float confidence = 4;</code>
+     *
+     * @return The confidence.
+     */
+    @java.lang.Override
+    public float getConfidence() {
+      return confidence_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The Speech confidence between 0.0 and 1.0 for this word. A higher number
+     * indicates an estimated greater likelihood that the recognized word is
+     * correct. The default of 0.0 is a sentinel value indicating that confidence
+     * was not set.
+     * This field is not guaranteed to be fully stable over time for the same
+     * audio input. Users should also not rely on it to always be provided.
+     * </pre>
+     *
+     * <code>float confidence = 4;</code>
+     *
+     * @param value The confidence to set.
+     * @return This builder for chaining.
+     */
+    public Builder setConfidence(float value) {
+
+      confidence_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The Speech confidence between 0.0 and 1.0 for this word. A higher number
+     * indicates an estimated greater likelihood that the recognized word is
+     * correct. The default of 0.0 is a sentinel value indicating that confidence
+     * was not set.
+     * This field is not guaranteed to be fully stable over time for the same
+     * audio input. Users should also not rely on it to always be provided.
+     * </pre>
+     *
+     * <code>float confidence = 4;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearConfidence() {
+
+      confidence_ = 0F;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<SpeechWordInfo> PARSER =
+      new com.google.protobuf.AbstractParser<SpeechWordInfo>() {
+        @java.lang.Override
+        public SpeechWordInfo parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new SpeechWordInfo(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<SpeechWordInfo> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<SpeechWordInfo> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SpeechWordInfoOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SpeechWordInfoOrBuilder.java
new file mode 100644
index 000000000..122a5223e
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SpeechWordInfoOrBuilder.java
@@ -0,0 +1,150 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/audio_config.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface SpeechWordInfoOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The word this info is for.
+   * </pre>
+   *
+   * <code>string word = 3;</code>
+   *
+   * @return The word.
+   */
+  java.lang.String getWord();
+  /**
+   *
+   *
+   * <pre>
+   * The word this info is for.
+   * </pre>
+   *
+   * <code>string word = 3;</code>
+   *
+   * @return The bytes for word.
+   */
+  com.google.protobuf.ByteString getWordBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Time offset relative to the beginning of the audio that corresponds to the
+   * start of the spoken word. This is an experimental feature and the accuracy
+   * of the time offset can vary.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration start_offset = 1;</code>
+   *
+   * @return Whether the startOffset field is set.
+   */
+  boolean hasStartOffset();
+  /**
+   *
+   *
+   * <pre>
+   * Time offset relative to the beginning of the audio that corresponds to the
+   * start of the spoken word. This is an experimental feature and the accuracy
+   * of the time offset can vary.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration start_offset = 1;</code>
+   *
+   * @return The startOffset.
+   */
+  com.google.protobuf.Duration getStartOffset();
+  /**
+   *
+   *
+   * <pre>
+   * Time offset relative to the beginning of the audio that corresponds to the
+   * start of the spoken word. This is an experimental feature and the accuracy
+   * of the time offset can vary.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration start_offset = 1;</code>
+   */
+  com.google.protobuf.DurationOrBuilder getStartOffsetOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Time offset relative to the beginning of the audio that corresponds to the
+   * end of the spoken word. This is an experimental feature and the accuracy of
+   * the time offset can vary.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration end_offset = 2;</code>
+   *
+   * @return Whether the endOffset field is set.
+   */
+  boolean hasEndOffset();
+  /**
+   *
+   *
+   * <pre>
+   * Time offset relative to the beginning of the audio that corresponds to the
+   * end of the spoken word. This is an experimental feature and the accuracy of
+   * the time offset can vary.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration end_offset = 2;</code>
+   *
+   * @return The endOffset.
+   */
+  com.google.protobuf.Duration getEndOffset();
+  /**
+   *
+   *
+   * <pre>
+   * Time offset relative to the beginning of the audio that corresponds to the
+   * end of the spoken word. This is an experimental feature and the accuracy of
+   * the time offset can vary.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration end_offset = 2;</code>
+   */
+  com.google.protobuf.DurationOrBuilder getEndOffsetOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The Speech confidence between 0.0 and 1.0 for this word. A higher number
+   * indicates an estimated greater likelihood that the recognized word is
+   * correct. The default of 0.0 is a sentinel value indicating that confidence
+   * was not set.
+   * This field is not guaranteed to be fully stable over time for the same
+   * audio input. Users should also not rely on it to always be provided.
+   * </pre>
+   *
+   * <code>float confidence = 4;</code>
+   *
+   * @return The confidence.
+   */
+  float getConfidence();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SsmlVoiceGender.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SsmlVoiceGender.java
new file mode 100644
index 000000000..d83666878
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SsmlVoiceGender.java
@@ -0,0 +1,203 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/audio_config.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Gender of the voice as described in
+ * [SSML voice element](https://www.w3.org/TR/speech-synthesis11/#edef_voice).
+ * </pre>
+ *
+ * Protobuf enum {@code google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender}
+ */
+public enum SsmlVoiceGender implements com.google.protobuf.ProtocolMessageEnum {
+  /**
+   *
+   *
+   * <pre>
+   * An unspecified gender, which means that the client doesn't care which
+   * gender the selected voice will have.
+   * </pre>
+   *
+   * <code>SSML_VOICE_GENDER_UNSPECIFIED = 0;</code>
+   */
+  SSML_VOICE_GENDER_UNSPECIFIED(0),
+  /**
+   *
+   *
+   * <pre>
+   * A male voice.
+   * </pre>
+   *
+   * <code>SSML_VOICE_GENDER_MALE = 1;</code>
+   */
+  SSML_VOICE_GENDER_MALE(1),
+  /**
+   *
+   *
+   * <pre>
+   * A female voice.
+   * </pre>
+   *
+   * <code>SSML_VOICE_GENDER_FEMALE = 2;</code>
+   */
+  SSML_VOICE_GENDER_FEMALE(2),
+  /**
+   *
+   *
+   * <pre>
+   * A gender-neutral voice.
+   * </pre>
+   *
+   * <code>SSML_VOICE_GENDER_NEUTRAL = 3;</code>
+   */
+  SSML_VOICE_GENDER_NEUTRAL(3),
+  UNRECOGNIZED(-1),
+  ;
+
+  /**
+   *
+   *
+   * <pre>
+   * An unspecified gender, which means that the client doesn't care which
+   * gender the selected voice will have.
+   * </pre>
+   *
+   * <code>SSML_VOICE_GENDER_UNSPECIFIED = 0;</code>
+   */
+  public static final int SSML_VOICE_GENDER_UNSPECIFIED_VALUE = 0;
+  /**
+   *
+   *
+   * <pre>
+   * A male voice.
+   * </pre>
+   *
+   * <code>SSML_VOICE_GENDER_MALE = 1;</code>
+   */
+  public static final int SSML_VOICE_GENDER_MALE_VALUE = 1;
+  /**
+   *
+   *
+   * <pre>
+   * A female voice.
+   * </pre>
+   *
+   * <code>SSML_VOICE_GENDER_FEMALE = 2;</code>
+   */
+  public static final int SSML_VOICE_GENDER_FEMALE_VALUE = 2;
+  /**
+   *
+   *
+   * <pre>
+   * A gender-neutral voice.
+   * </pre>
+   *
+   * <code>SSML_VOICE_GENDER_NEUTRAL = 3;</code>
+   */
+  public static final int SSML_VOICE_GENDER_NEUTRAL_VALUE = 3;
+
+  public final int getNumber() {
+    if (this == UNRECOGNIZED) {
+      throw new java.lang.IllegalArgumentException(
+          "Can't get the number of an unknown enum value.");
+    }
+    return value;
+  }
+
+  /**
+   * @param value The numeric wire value of the corresponding enum entry.
+   * @return The enum associated with the given numeric wire value.
+   * @deprecated Use {@link #forNumber(int)} instead.
+   */
+  @java.lang.Deprecated
+  public static SsmlVoiceGender valueOf(int value) {
+    return forNumber(value);
+  }
+
+  /**
+   * @param value The numeric wire value of the corresponding enum entry.
+   * @return The enum associated with the given numeric wire value.
+   */
+  public static SsmlVoiceGender forNumber(int value) {
+    switch (value) {
+      case 0:
+        return SSML_VOICE_GENDER_UNSPECIFIED;
+      case 1:
+        return SSML_VOICE_GENDER_MALE;
+      case 2:
+        return SSML_VOICE_GENDER_FEMALE;
+      case 3:
+        return SSML_VOICE_GENDER_NEUTRAL;
+      default:
+        return null;
+    }
+  }
+
+  public static com.google.protobuf.Internal.EnumLiteMap<SsmlVoiceGender> internalGetValueMap() {
+    return internalValueMap;
+  }
+
+  private static final com.google.protobuf.Internal.EnumLiteMap<SsmlVoiceGender> internalValueMap =
+      new com.google.protobuf.Internal.EnumLiteMap<SsmlVoiceGender>() {
+        public SsmlVoiceGender findValueByNumber(int number) {
+          return SsmlVoiceGender.forNumber(number);
+        }
+      };
+
+  public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+    if (this == UNRECOGNIZED) {
+      throw new java.lang.IllegalStateException(
+          "Can't get the descriptor of an unrecognized enum value.");
+    }
+    return getDescriptor().getValues().get(ordinal());
+  }
+
+  public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+    return getDescriptor();
+  }
+
+  public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto.getDescriptor()
+        .getEnumTypes()
+        .get(2);
+  }
+
+  private static final SsmlVoiceGender[] VALUES = values();
+
+  public static SsmlVoiceGender valueOf(com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+    if (desc.getType() != getDescriptor()) {
+      throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
+    }
+    if (desc.getIndex() == -1) {
+      return UNRECOGNIZED;
+    }
+    return VALUES[desc.getIndex()];
+  }
+
+  private final int value;
+
+  private SsmlVoiceGender(int value) {
+    this.value = value;
+  }
+
+  // @@protoc_insertion_point(enum_scope:google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender)
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/StreamingDetectIntentRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/StreamingDetectIntentRequest.java
new file mode 100644
index 000000000..dca0c6d31
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/StreamingDetectIntentRequest.java
@@ -0,0 +1,1600 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The top-level message sent by the client to the
+ * [Sessions.StreamingDetectIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.StreamingDetectIntent] method.
+ * Multiple request messages should be sent in order:
+ * 1.  The first message must contain
+ * [session][google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest.session],
+ *     [query_input][google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest.query_input] plus optionally
+ *     [query_params][google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest.query_params]. If the client
+ *     wants to receive an audio response, it should also contain
+ *     [output_audio_config][google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest.output_audio_config].
+ * 2.  If [query_input][google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest.query_input] was set to
+ *     [query_input.audio.config][google.cloud.dialogflow.cx.v3beta1.AudioInput.config], all subsequent messages
+ *     must contain [query_input.audio.audio][google.cloud.dialogflow.cx.v3beta1.AudioInput.audio] to continue with
+ *     Speech recognition.
+ *     If you decide to rather detect an intent from text
+ *     input after you already started Speech recognition, please send a message
+ *     with [query_input.text][google.cloud.dialogflow.cx.v3beta1.QueryInput.text].
+ *     However, note that:
+ *     * Dialogflow will bill you for the audio duration so far.
+ *     * Dialogflow discards all Speech recognition results in favor of the
+ *       input text.
+ *     * Dialogflow will use the language code from the first message.
+ * After you sent all input, you must half-close or abort the request stream.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest}
+ */
+public final class StreamingDetectIntentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest)
+    StreamingDetectIntentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use StreamingDetectIntentRequest.newBuilder() to construct.
+  private StreamingDetectIntentRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private StreamingDetectIntentRequest() {
+    session_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new StreamingDetectIntentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private StreamingDetectIntentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              session_ = s;
+              break;
+            }
+          case 18:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.Builder subBuilder = null;
+              if (queryParams_ != null) {
+                subBuilder = queryParams_.toBuilder();
+              }
+              queryParams_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(queryParams_);
+                queryParams_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 26:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.QueryInput.Builder subBuilder = null;
+              if (queryInput_ != null) {
+                subBuilder = queryInput_.toBuilder();
+              }
+              queryInput_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.QueryInput.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(queryInput_);
+                queryInput_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 34:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder subBuilder = null;
+              if (outputAudioConfig_ != null) {
+                subBuilder = outputAudioConfig_.toBuilder();
+              }
+              outputAudioConfig_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(outputAudioConfig_);
+                outputAudioConfig_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingDetectIntentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingDetectIntentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest.Builder.class);
+  }
+
+  public static final int SESSION_FIELD_NUMBER = 1;
+  private volatile java.lang.Object session_;
+  /**
+   *
+   *
+   * <pre>
+   * The name of the session this query is sent to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * It's up to the API caller to choose an appropriate `Session ID`. It can be
+   * a random number or some type of session identifiers (preferably hashed).
+   * The length of the `Session ID` must not exceed 36 characters.
+   * Note: session must be set in the first request.
+   * </pre>
+   *
+   * <code>string session = 1 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The session.
+   */
+  @java.lang.Override
+  public java.lang.String getSession() {
+    java.lang.Object ref = session_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      session_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The name of the session this query is sent to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * It's up to the API caller to choose an appropriate `Session ID`. It can be
+   * a random number or some type of session identifiers (preferably hashed).
+   * The length of the `Session ID` must not exceed 36 characters.
+   * Note: session must be set in the first request.
+   * </pre>
+   *
+   * <code>string session = 1 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for session.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getSessionBytes() {
+    java.lang.Object ref = session_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      session_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int QUERY_PARAMS_FIELD_NUMBER = 2;
+  private com.google.cloud.dialogflow.cx.v3beta1.QueryParameters queryParams_;
+  /**
+   *
+   *
+   * <pre>
+   * The parameters of this query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+   *
+   * @return Whether the queryParams field is set.
+   */
+  @java.lang.Override
+  public boolean hasQueryParams() {
+    return queryParams_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The parameters of this query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+   *
+   * @return The queryParams.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.QueryParameters getQueryParams() {
+    return queryParams_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.getDefaultInstance()
+        : queryParams_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The parameters of this query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.QueryParametersOrBuilder getQueryParamsOrBuilder() {
+    return getQueryParams();
+  }
+
+  public static final int QUERY_INPUT_FIELD_NUMBER = 3;
+  private com.google.cloud.dialogflow.cx.v3beta1.QueryInput queryInput_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The input specification.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the queryInput field is set.
+   */
+  @java.lang.Override
+  public boolean hasQueryInput() {
+    return queryInput_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The input specification.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The queryInput.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.QueryInput getQueryInput() {
+    return queryInput_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.QueryInput.getDefaultInstance()
+        : queryInput_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The input specification.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.QueryInputOrBuilder getQueryInputOrBuilder() {
+    return getQueryInput();
+  }
+
+  public static final int OUTPUT_AUDIO_CONFIG_FIELD_NUMBER = 4;
+  private com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig outputAudioConfig_;
+  /**
+   *
+   *
+   * <pre>
+   * Instructs the speech synthesizer how to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+   *
+   * @return Whether the outputAudioConfig field is set.
+   */
+  @java.lang.Override
+  public boolean hasOutputAudioConfig() {
+    return outputAudioConfig_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Instructs the speech synthesizer how to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+   *
+   * @return The outputAudioConfig.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig getOutputAudioConfig() {
+    return outputAudioConfig_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.getDefaultInstance()
+        : outputAudioConfig_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Instructs the speech synthesizer how to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder
+      getOutputAudioConfigOrBuilder() {
+    return getOutputAudioConfig();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getSessionBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, session_);
+    }
+    if (queryParams_ != null) {
+      output.writeMessage(2, getQueryParams());
+    }
+    if (queryInput_ != null) {
+      output.writeMessage(3, getQueryInput());
+    }
+    if (outputAudioConfig_ != null) {
+      output.writeMessage(4, getOutputAudioConfig());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getSessionBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, session_);
+    }
+    if (queryParams_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getQueryParams());
+    }
+    if (queryInput_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getQueryInput());
+    }
+    if (outputAudioConfig_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, getOutputAudioConfig());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest) obj;
+
+    if (!getSession().equals(other.getSession())) return false;
+    if (hasQueryParams() != other.hasQueryParams()) return false;
+    if (hasQueryParams()) {
+      if (!getQueryParams().equals(other.getQueryParams())) return false;
+    }
+    if (hasQueryInput() != other.hasQueryInput()) return false;
+    if (hasQueryInput()) {
+      if (!getQueryInput().equals(other.getQueryInput())) return false;
+    }
+    if (hasOutputAudioConfig() != other.hasOutputAudioConfig()) return false;
+    if (hasOutputAudioConfig()) {
+      if (!getOutputAudioConfig().equals(other.getOutputAudioConfig())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + SESSION_FIELD_NUMBER;
+    hash = (53 * hash) + getSession().hashCode();
+    if (hasQueryParams()) {
+      hash = (37 * hash) + QUERY_PARAMS_FIELD_NUMBER;
+      hash = (53 * hash) + getQueryParams().hashCode();
+    }
+    if (hasQueryInput()) {
+      hash = (37 * hash) + QUERY_INPUT_FIELD_NUMBER;
+      hash = (53 * hash) + getQueryInput().hashCode();
+    }
+    if (hasOutputAudioConfig()) {
+      hash = (37 * hash) + OUTPUT_AUDIO_CONFIG_FIELD_NUMBER;
+      hash = (53 * hash) + getOutputAudioConfig().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest
+      parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest
+      parseDelimitedFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The top-level message sent by the client to the
+   * [Sessions.StreamingDetectIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.StreamingDetectIntent] method.
+   * Multiple request messages should be sent in order:
+   * 1.  The first message must contain
+   * [session][google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest.session],
+   *     [query_input][google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest.query_input] plus optionally
+   *     [query_params][google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest.query_params]. If the client
+   *     wants to receive an audio response, it should also contain
+   *     [output_audio_config][google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest.output_audio_config].
+   * 2.  If [query_input][google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest.query_input] was set to
+   *     [query_input.audio.config][google.cloud.dialogflow.cx.v3beta1.AudioInput.config], all subsequent messages
+   *     must contain [query_input.audio.audio][google.cloud.dialogflow.cx.v3beta1.AudioInput.audio] to continue with
+   *     Speech recognition.
+   *     If you decide to rather detect an intent from text
+   *     input after you already started Speech recognition, please send a message
+   *     with [query_input.text][google.cloud.dialogflow.cx.v3beta1.QueryInput.text].
+   *     However, note that:
+   *     * Dialogflow will bill you for the audio duration so far.
+   *     * Dialogflow discards all Speech recognition results in favor of the
+   *       input text.
+   *     * Dialogflow will use the language code from the first message.
+   * After you sent all input, you must half-close or abort the request stream.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingDetectIntentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingDetectIntentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest.Builder.class);
+    }
+
+    // Construct using
+    // com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      session_ = "";
+
+      if (queryParamsBuilder_ == null) {
+        queryParams_ = null;
+      } else {
+        queryParams_ = null;
+        queryParamsBuilder_ = null;
+      }
+      if (queryInputBuilder_ == null) {
+        queryInput_ = null;
+      } else {
+        queryInput_ = null;
+        queryInputBuilder_ = null;
+      }
+      if (outputAudioConfigBuilder_ == null) {
+        outputAudioConfig_ = null;
+      } else {
+        outputAudioConfig_ = null;
+        outputAudioConfigBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingDetectIntentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest
+          .getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest(this);
+      result.session_ = session_;
+      if (queryParamsBuilder_ == null) {
+        result.queryParams_ = queryParams_;
+      } else {
+        result.queryParams_ = queryParamsBuilder_.build();
+      }
+      if (queryInputBuilder_ == null) {
+        result.queryInput_ = queryInput_;
+      } else {
+        result.queryInput_ = queryInputBuilder_.build();
+      }
+      if (outputAudioConfigBuilder_ == null) {
+        result.outputAudioConfig_ = outputAudioConfig_;
+      } else {
+        result.outputAudioConfig_ = outputAudioConfigBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest) {
+        return mergeFrom(
+            (com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest
+              .getDefaultInstance()) return this;
+      if (!other.getSession().isEmpty()) {
+        session_ = other.session_;
+        onChanged();
+      }
+      if (other.hasQueryParams()) {
+        mergeQueryParams(other.getQueryParams());
+      }
+      if (other.hasQueryInput()) {
+        mergeQueryInput(other.getQueryInput());
+      }
+      if (other.hasOutputAudioConfig()) {
+        mergeOutputAudioConfig(other.getOutputAudioConfig());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object session_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The name of the session this query is sent to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * It's up to the API caller to choose an appropriate `Session ID`. It can be
+     * a random number or some type of session identifiers (preferably hashed).
+     * The length of the `Session ID` must not exceed 36 characters.
+     * Note: session must be set in the first request.
+     * </pre>
+     *
+     * <code>string session = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The session.
+     */
+    public java.lang.String getSession() {
+      java.lang.Object ref = session_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        session_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The name of the session this query is sent to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * It's up to the API caller to choose an appropriate `Session ID`. It can be
+     * a random number or some type of session identifiers (preferably hashed).
+     * The length of the `Session ID` must not exceed 36 characters.
+     * Note: session must be set in the first request.
+     * </pre>
+     *
+     * <code>string session = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The bytes for session.
+     */
+    public com.google.protobuf.ByteString getSessionBytes() {
+      java.lang.Object ref = session_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        session_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The name of the session this query is sent to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * It's up to the API caller to choose an appropriate `Session ID`. It can be
+     * a random number or some type of session identifiers (preferably hashed).
+     * The length of the `Session ID` must not exceed 36 characters.
+     * Note: session must be set in the first request.
+     * </pre>
+     *
+     * <code>string session = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The session to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSession(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      session_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The name of the session this query is sent to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * It's up to the API caller to choose an appropriate `Session ID`. It can be
+     * a random number or some type of session identifiers (preferably hashed).
+     * The length of the `Session ID` must not exceed 36 characters.
+     * Note: session must be set in the first request.
+     * </pre>
+     *
+     * <code>string session = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearSession() {
+
+      session_ = getDefaultInstance().getSession();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The name of the session this query is sent to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;`.
+     * It's up to the API caller to choose an appropriate `Session ID`. It can be
+     * a random number or some type of session identifiers (preferably hashed).
+     * The length of the `Session ID` must not exceed 36 characters.
+     * Note: session must be set in the first request.
+     * </pre>
+     *
+     * <code>string session = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The bytes for session to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSessionBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      session_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.QueryParameters queryParams_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.QueryParameters,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryParametersOrBuilder>
+        queryParamsBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     *
+     * @return Whether the queryParams field is set.
+     */
+    public boolean hasQueryParams() {
+      return queryParamsBuilder_ != null || queryParams_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     *
+     * @return The queryParams.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryParameters getQueryParams() {
+      if (queryParamsBuilder_ == null) {
+        return queryParams_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.getDefaultInstance()
+            : queryParams_;
+      } else {
+        return queryParamsBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     */
+    public Builder setQueryParams(com.google.cloud.dialogflow.cx.v3beta1.QueryParameters value) {
+      if (queryParamsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        queryParams_ = value;
+        onChanged();
+      } else {
+        queryParamsBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     */
+    public Builder setQueryParams(
+        com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.Builder builderForValue) {
+      if (queryParamsBuilder_ == null) {
+        queryParams_ = builderForValue.build();
+        onChanged();
+      } else {
+        queryParamsBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     */
+    public Builder mergeQueryParams(com.google.cloud.dialogflow.cx.v3beta1.QueryParameters value) {
+      if (queryParamsBuilder_ == null) {
+        if (queryParams_ != null) {
+          queryParams_ =
+              com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.newBuilder(queryParams_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          queryParams_ = value;
+        }
+        onChanged();
+      } else {
+        queryParamsBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     */
+    public Builder clearQueryParams() {
+      if (queryParamsBuilder_ == null) {
+        queryParams_ = null;
+        onChanged();
+      } else {
+        queryParams_ = null;
+        queryParamsBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.Builder getQueryParamsBuilder() {
+
+      onChanged();
+      return getQueryParamsFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryParametersOrBuilder
+        getQueryParamsOrBuilder() {
+      if (queryParamsBuilder_ != null) {
+        return queryParamsBuilder_.getMessageOrBuilder();
+      } else {
+        return queryParams_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.getDefaultInstance()
+            : queryParams_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The parameters of this query.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.QueryParameters,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryParametersOrBuilder>
+        getQueryParamsFieldBuilder() {
+      if (queryParamsBuilder_ == null) {
+        queryParamsBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.QueryParameters,
+                com.google.cloud.dialogflow.cx.v3beta1.QueryParameters.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.QueryParametersOrBuilder>(
+                getQueryParams(), getParentForChildren(), isClean());
+        queryParams_ = null;
+      }
+      return queryParamsBuilder_;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.QueryInput queryInput_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.QueryInput,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryInput.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryInputOrBuilder>
+        queryInputBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the queryInput field is set.
+     */
+    public boolean hasQueryInput() {
+      return queryInputBuilder_ != null || queryInput_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The queryInput.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryInput getQueryInput() {
+      if (queryInputBuilder_ == null) {
+        return queryInput_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.QueryInput.getDefaultInstance()
+            : queryInput_;
+      } else {
+        return queryInputBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setQueryInput(com.google.cloud.dialogflow.cx.v3beta1.QueryInput value) {
+      if (queryInputBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        queryInput_ = value;
+        onChanged();
+      } else {
+        queryInputBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setQueryInput(
+        com.google.cloud.dialogflow.cx.v3beta1.QueryInput.Builder builderForValue) {
+      if (queryInputBuilder_ == null) {
+        queryInput_ = builderForValue.build();
+        onChanged();
+      } else {
+        queryInputBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeQueryInput(com.google.cloud.dialogflow.cx.v3beta1.QueryInput value) {
+      if (queryInputBuilder_ == null) {
+        if (queryInput_ != null) {
+          queryInput_ =
+              com.google.cloud.dialogflow.cx.v3beta1.QueryInput.newBuilder(queryInput_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          queryInput_ = value;
+        }
+        onChanged();
+      } else {
+        queryInputBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearQueryInput() {
+      if (queryInputBuilder_ == null) {
+        queryInput_ = null;
+        onChanged();
+      } else {
+        queryInput_ = null;
+        queryInputBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryInput.Builder getQueryInputBuilder() {
+
+      onChanged();
+      return getQueryInputFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.QueryInputOrBuilder getQueryInputOrBuilder() {
+      if (queryInputBuilder_ != null) {
+        return queryInputBuilder_.getMessageOrBuilder();
+      } else {
+        return queryInput_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.QueryInput.getDefaultInstance()
+            : queryInput_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The input specification.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.QueryInput,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryInput.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.QueryInputOrBuilder>
+        getQueryInputFieldBuilder() {
+      if (queryInputBuilder_ == null) {
+        queryInputBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.QueryInput,
+                com.google.cloud.dialogflow.cx.v3beta1.QueryInput.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.QueryInputOrBuilder>(
+                getQueryInput(), getParentForChildren(), isClean());
+        queryInput_ = null;
+      }
+      return queryInputBuilder_;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig outputAudioConfig_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig,
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder>
+        outputAudioConfigBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     *
+     * @return Whether the outputAudioConfig field is set.
+     */
+    public boolean hasOutputAudioConfig() {
+      return outputAudioConfigBuilder_ != null || outputAudioConfig_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     *
+     * @return The outputAudioConfig.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig getOutputAudioConfig() {
+      if (outputAudioConfigBuilder_ == null) {
+        return outputAudioConfig_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.getDefaultInstance()
+            : outputAudioConfig_;
+      } else {
+        return outputAudioConfigBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     */
+    public Builder setOutputAudioConfig(
+        com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig value) {
+      if (outputAudioConfigBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        outputAudioConfig_ = value;
+        onChanged();
+      } else {
+        outputAudioConfigBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     */
+    public Builder setOutputAudioConfig(
+        com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder builderForValue) {
+      if (outputAudioConfigBuilder_ == null) {
+        outputAudioConfig_ = builderForValue.build();
+        onChanged();
+      } else {
+        outputAudioConfigBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     */
+    public Builder mergeOutputAudioConfig(
+        com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig value) {
+      if (outputAudioConfigBuilder_ == null) {
+        if (outputAudioConfig_ != null) {
+          outputAudioConfig_ =
+              com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.newBuilder(
+                      outputAudioConfig_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          outputAudioConfig_ = value;
+        }
+        onChanged();
+      } else {
+        outputAudioConfigBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     */
+    public Builder clearOutputAudioConfig() {
+      if (outputAudioConfigBuilder_ == null) {
+        outputAudioConfig_ = null;
+        onChanged();
+      } else {
+        outputAudioConfig_ = null;
+        outputAudioConfigBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder
+        getOutputAudioConfigBuilder() {
+
+      onChanged();
+      return getOutputAudioConfigFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder
+        getOutputAudioConfigOrBuilder() {
+      if (outputAudioConfigBuilder_ != null) {
+        return outputAudioConfigBuilder_.getMessageOrBuilder();
+      } else {
+        return outputAudioConfig_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.getDefaultInstance()
+            : outputAudioConfig_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Instructs the speech synthesizer how to generate the output audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig,
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder>
+        getOutputAudioConfigFieldBuilder() {
+      if (outputAudioConfigBuilder_ == null) {
+        outputAudioConfigBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig,
+                com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder>(
+                getOutputAudioConfig(), getParentForChildren(), isClean());
+        outputAudioConfig_ = null;
+      }
+      return outputAudioConfigBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<StreamingDetectIntentRequest> PARSER =
+      new com.google.protobuf.AbstractParser<StreamingDetectIntentRequest>() {
+        @java.lang.Override
+        public StreamingDetectIntentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new StreamingDetectIntentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<StreamingDetectIntentRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<StreamingDetectIntentRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/StreamingDetectIntentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/StreamingDetectIntentRequestOrBuilder.java
new file mode 100644
index 000000000..fbb614139
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/StreamingDetectIntentRequestOrBuilder.java
@@ -0,0 +1,173 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface StreamingDetectIntentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The name of the session this query is sent to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * It's up to the API caller to choose an appropriate `Session ID`. It can be
+   * a random number or some type of session identifiers (preferably hashed).
+   * The length of the `Session ID` must not exceed 36 characters.
+   * Note: session must be set in the first request.
+   * </pre>
+   *
+   * <code>string session = 1 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The session.
+   */
+  java.lang.String getSession();
+  /**
+   *
+   *
+   * <pre>
+   * The name of the session this query is sent to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;`.
+   * It's up to the API caller to choose an appropriate `Session ID`. It can be
+   * a random number or some type of session identifiers (preferably hashed).
+   * The length of the `Session ID` must not exceed 36 characters.
+   * Note: session must be set in the first request.
+   * </pre>
+   *
+   * <code>string session = 1 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for session.
+   */
+  com.google.protobuf.ByteString getSessionBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The parameters of this query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+   *
+   * @return Whether the queryParams field is set.
+   */
+  boolean hasQueryParams();
+  /**
+   *
+   *
+   * <pre>
+   * The parameters of this query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+   *
+   * @return The queryParams.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.QueryParameters getQueryParams();
+  /**
+   *
+   *
+   * <pre>
+   * The parameters of this query.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.QueryParameters query_params = 2;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.QueryParametersOrBuilder getQueryParamsOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The input specification.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the queryInput field is set.
+   */
+  boolean hasQueryInput();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The input specification.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The queryInput.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.QueryInput getQueryInput();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The input specification.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.QueryInput query_input = 3 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.QueryInputOrBuilder getQueryInputOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Instructs the speech synthesizer how to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+   *
+   * @return Whether the outputAudioConfig field is set.
+   */
+  boolean hasOutputAudioConfig();
+  /**
+   *
+   *
+   * <pre>
+   * Instructs the speech synthesizer how to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+   *
+   * @return The outputAudioConfig.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig getOutputAudioConfig();
+  /**
+   *
+   *
+   * <pre>
+   * Instructs the speech synthesizer how to generate the output audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfig output_audio_config = 4;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.OutputAudioConfigOrBuilder getOutputAudioConfigOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/StreamingDetectIntentResponse.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/StreamingDetectIntentResponse.java
new file mode 100644
index 000000000..3840559ae
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/StreamingDetectIntentResponse.java
@@ -0,0 +1,1221 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The top-level message returned from the `StreamingDetectIntent` method.
+ * Multiple response messages can be returned in order:
+ * 1.  If the input was set to streaming audio, the first one or more messages
+ *     contain `recognition_result`. Each `recognition_result` represents a more
+ *     complete transcript of what the user said. The last `recognition_result`
+ *     has `is_final` set to `true`.
+ * 2.  The last message contains `detect_intent_response`.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse}
+ */
+public final class StreamingDetectIntentResponse extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse)
+    StreamingDetectIntentResponseOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use StreamingDetectIntentResponse.newBuilder() to construct.
+  private StreamingDetectIntentResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private StreamingDetectIntentResponse() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new StreamingDetectIntentResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private StreamingDetectIntentResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.Builder subBuilder =
+                  null;
+              if (responseCase_ == 1) {
+                subBuilder =
+                    ((com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult) response_)
+                        .toBuilder();
+              }
+              response_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(
+                    (com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult) response_);
+                response_ = subBuilder.buildPartial();
+              }
+              responseCase_ = 1;
+              break;
+            }
+          case 18:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse.Builder subBuilder = null;
+              if (responseCase_ == 2) {
+                subBuilder =
+                    ((com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse) response_)
+                        .toBuilder();
+              }
+              response_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(
+                    (com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse) response_);
+                response_ = subBuilder.buildPartial();
+              }
+              responseCase_ = 2;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingDetectIntentResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingDetectIntentResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse.class,
+            com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse.Builder.class);
+  }
+
+  private int responseCase_ = 0;
+  private java.lang.Object response_;
+
+  public enum ResponseCase
+      implements
+          com.google.protobuf.Internal.EnumLite,
+          com.google.protobuf.AbstractMessage.InternalOneOfEnum {
+    RECOGNITION_RESULT(1),
+    DETECT_INTENT_RESPONSE(2),
+    RESPONSE_NOT_SET(0);
+    private final int value;
+
+    private ResponseCase(int value) {
+      this.value = value;
+    }
+    /**
+     * @param value The number of the enum to look for.
+     * @return The enum associated with the given number.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static ResponseCase valueOf(int value) {
+      return forNumber(value);
+    }
+
+    public static ResponseCase forNumber(int value) {
+      switch (value) {
+        case 1:
+          return RECOGNITION_RESULT;
+        case 2:
+          return DETECT_INTENT_RESPONSE;
+        case 0:
+          return RESPONSE_NOT_SET;
+        default:
+          return null;
+      }
+    }
+
+    public int getNumber() {
+      return this.value;
+    }
+  };
+
+  public ResponseCase getResponseCase() {
+    return ResponseCase.forNumber(responseCase_);
+  }
+
+  public static final int RECOGNITION_RESULT_FIELD_NUMBER = 1;
+  /**
+   *
+   *
+   * <pre>
+   * The result of speech recognition.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult recognition_result = 1;
+   * </code>
+   *
+   * @return Whether the recognitionResult field is set.
+   */
+  @java.lang.Override
+  public boolean hasRecognitionResult() {
+    return responseCase_ == 1;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The result of speech recognition.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult recognition_result = 1;
+   * </code>
+   *
+   * @return The recognitionResult.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult getRecognitionResult() {
+    if (responseCase_ == 1) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult) response_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.getDefaultInstance();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The result of speech recognition.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult recognition_result = 1;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResultOrBuilder
+      getRecognitionResultOrBuilder() {
+    if (responseCase_ == 1) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult) response_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.getDefaultInstance();
+  }
+
+  public static final int DETECT_INTENT_RESPONSE_FIELD_NUMBER = 2;
+  /**
+   *
+   *
+   * <pre>
+   * The response from detect intent.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse detect_intent_response = 2;
+   * </code>
+   *
+   * @return Whether the detectIntentResponse field is set.
+   */
+  @java.lang.Override
+  public boolean hasDetectIntentResponse() {
+    return responseCase_ == 2;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The response from detect intent.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse detect_intent_response = 2;
+   * </code>
+   *
+   * @return The detectIntentResponse.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse getDetectIntentResponse() {
+    if (responseCase_ == 2) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse) response_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse.getDefaultInstance();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The response from detect intent.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse detect_intent_response = 2;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponseOrBuilder
+      getDetectIntentResponseOrBuilder() {
+    if (responseCase_ == 2) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse) response_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse.getDefaultInstance();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (responseCase_ == 1) {
+      output.writeMessage(
+          1, (com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult) response_);
+    }
+    if (responseCase_ == 2) {
+      output.writeMessage(
+          2, (com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse) response_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (responseCase_ == 1) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              1, (com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult) response_);
+    }
+    if (responseCase_ == 2) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              2, (com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse) response_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse other =
+        (com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse) obj;
+
+    if (!getResponseCase().equals(other.getResponseCase())) return false;
+    switch (responseCase_) {
+      case 1:
+        if (!getRecognitionResult().equals(other.getRecognitionResult())) return false;
+        break;
+      case 2:
+        if (!getDetectIntentResponse().equals(other.getDetectIntentResponse())) return false;
+        break;
+      case 0:
+      default:
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    switch (responseCase_) {
+      case 1:
+        hash = (37 * hash) + RECOGNITION_RESULT_FIELD_NUMBER;
+        hash = (53 * hash) + getRecognitionResult().hashCode();
+        break;
+      case 2:
+        hash = (37 * hash) + DETECT_INTENT_RESPONSE_FIELD_NUMBER;
+        hash = (53 * hash) + getDetectIntentResponse().hashCode();
+        break;
+      case 0:
+      default:
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse
+      parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse
+      parseDelimitedFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The top-level message returned from the `StreamingDetectIntent` method.
+   * Multiple response messages can be returned in order:
+   * 1.  If the input was set to streaming audio, the first one or more messages
+   *     contain `recognition_result`. Each `recognition_result` represents a more
+   *     complete transcript of what the user said. The last `recognition_result`
+   *     has `is_final` set to `true`.
+   * 2.  The last message contains `detect_intent_response`.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse)
+      com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingDetectIntentResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingDetectIntentResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse.class,
+              com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse.Builder.class);
+    }
+
+    // Construct using
+    // com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      responseCase_ = 0;
+      response_ = null;
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingDetectIntentResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse
+          .getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse build() {
+      com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse result =
+          new com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse(this);
+      if (responseCase_ == 1) {
+        if (recognitionResultBuilder_ == null) {
+          result.response_ = response_;
+        } else {
+          result.response_ = recognitionResultBuilder_.build();
+        }
+      }
+      if (responseCase_ == 2) {
+        if (detectIntentResponseBuilder_ == null) {
+          result.response_ = response_;
+        } else {
+          result.response_ = detectIntentResponseBuilder_.build();
+        }
+      }
+      result.responseCase_ = responseCase_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse) {
+        return mergeFrom(
+            (com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse
+              .getDefaultInstance()) return this;
+      switch (other.getResponseCase()) {
+        case RECOGNITION_RESULT:
+          {
+            mergeRecognitionResult(other.getRecognitionResult());
+            break;
+          }
+        case DETECT_INTENT_RESPONSE:
+          {
+            mergeDetectIntentResponse(other.getDetectIntentResponse());
+            break;
+          }
+        case RESPONSE_NOT_SET:
+          {
+            break;
+          }
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int responseCase_ = 0;
+    private java.lang.Object response_;
+
+    public ResponseCase getResponseCase() {
+      return ResponseCase.forNumber(responseCase_);
+    }
+
+    public Builder clearResponse() {
+      responseCase_ = 0;
+      response_ = null;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult,
+            com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResultOrBuilder>
+        recognitionResultBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The result of speech recognition.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult recognition_result = 1;
+     * </code>
+     *
+     * @return Whether the recognitionResult field is set.
+     */
+    @java.lang.Override
+    public boolean hasRecognitionResult() {
+      return responseCase_ == 1;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of speech recognition.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult recognition_result = 1;
+     * </code>
+     *
+     * @return The recognitionResult.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult
+        getRecognitionResult() {
+      if (recognitionResultBuilder_ == null) {
+        if (responseCase_ == 1) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult) response_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult
+            .getDefaultInstance();
+      } else {
+        if (responseCase_ == 1) {
+          return recognitionResultBuilder_.getMessage();
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of speech recognition.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult recognition_result = 1;
+     * </code>
+     */
+    public Builder setRecognitionResult(
+        com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult value) {
+      if (recognitionResultBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        response_ = value;
+        onChanged();
+      } else {
+        recognitionResultBuilder_.setMessage(value);
+      }
+      responseCase_ = 1;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of speech recognition.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult recognition_result = 1;
+     * </code>
+     */
+    public Builder setRecognitionResult(
+        com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.Builder builderForValue) {
+      if (recognitionResultBuilder_ == null) {
+        response_ = builderForValue.build();
+        onChanged();
+      } else {
+        recognitionResultBuilder_.setMessage(builderForValue.build());
+      }
+      responseCase_ = 1;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of speech recognition.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult recognition_result = 1;
+     * </code>
+     */
+    public Builder mergeRecognitionResult(
+        com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult value) {
+      if (recognitionResultBuilder_ == null) {
+        if (responseCase_ == 1
+            && response_
+                != com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult
+                    .getDefaultInstance()) {
+          response_ =
+              com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.newBuilder(
+                      (com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult) response_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          response_ = value;
+        }
+        onChanged();
+      } else {
+        if (responseCase_ == 1) {
+          recognitionResultBuilder_.mergeFrom(value);
+        }
+        recognitionResultBuilder_.setMessage(value);
+      }
+      responseCase_ = 1;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of speech recognition.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult recognition_result = 1;
+     * </code>
+     */
+    public Builder clearRecognitionResult() {
+      if (recognitionResultBuilder_ == null) {
+        if (responseCase_ == 1) {
+          responseCase_ = 0;
+          response_ = null;
+          onChanged();
+        }
+      } else {
+        if (responseCase_ == 1) {
+          responseCase_ = 0;
+          response_ = null;
+        }
+        recognitionResultBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of speech recognition.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult recognition_result = 1;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.Builder
+        getRecognitionResultBuilder() {
+      return getRecognitionResultFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of speech recognition.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult recognition_result = 1;
+     * </code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResultOrBuilder
+        getRecognitionResultOrBuilder() {
+      if ((responseCase_ == 1) && (recognitionResultBuilder_ != null)) {
+        return recognitionResultBuilder_.getMessageOrBuilder();
+      } else {
+        if (responseCase_ == 1) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult) response_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The result of speech recognition.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult recognition_result = 1;
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult,
+            com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResultOrBuilder>
+        getRecognitionResultFieldBuilder() {
+      if (recognitionResultBuilder_ == null) {
+        if (!(responseCase_ == 1)) {
+          response_ =
+              com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult
+                  .getDefaultInstance();
+        }
+        recognitionResultBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult,
+                com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResultOrBuilder>(
+                (com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult) response_,
+                getParentForChildren(),
+                isClean());
+        response_ = null;
+      }
+      responseCase_ = 1;
+      onChanged();
+      ;
+      return recognitionResultBuilder_;
+    }
+
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse,
+            com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponseOrBuilder>
+        detectIntentResponseBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The response from detect intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse detect_intent_response = 2;
+     * </code>
+     *
+     * @return Whether the detectIntentResponse field is set.
+     */
+    @java.lang.Override
+    public boolean hasDetectIntentResponse() {
+      return responseCase_ == 2;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The response from detect intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse detect_intent_response = 2;
+     * </code>
+     *
+     * @return The detectIntentResponse.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse getDetectIntentResponse() {
+      if (detectIntentResponseBuilder_ == null) {
+        if (responseCase_ == 2) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse) response_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse.getDefaultInstance();
+      } else {
+        if (responseCase_ == 2) {
+          return detectIntentResponseBuilder_.getMessage();
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse.getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The response from detect intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse detect_intent_response = 2;
+     * </code>
+     */
+    public Builder setDetectIntentResponse(
+        com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse value) {
+      if (detectIntentResponseBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        response_ = value;
+        onChanged();
+      } else {
+        detectIntentResponseBuilder_.setMessage(value);
+      }
+      responseCase_ = 2;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The response from detect intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse detect_intent_response = 2;
+     * </code>
+     */
+    public Builder setDetectIntentResponse(
+        com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse.Builder builderForValue) {
+      if (detectIntentResponseBuilder_ == null) {
+        response_ = builderForValue.build();
+        onChanged();
+      } else {
+        detectIntentResponseBuilder_.setMessage(builderForValue.build());
+      }
+      responseCase_ = 2;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The response from detect intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse detect_intent_response = 2;
+     * </code>
+     */
+    public Builder mergeDetectIntentResponse(
+        com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse value) {
+      if (detectIntentResponseBuilder_ == null) {
+        if (responseCase_ == 2
+            && response_
+                != com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse
+                    .getDefaultInstance()) {
+          response_ =
+              com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse.newBuilder(
+                      (com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse) response_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          response_ = value;
+        }
+        onChanged();
+      } else {
+        if (responseCase_ == 2) {
+          detectIntentResponseBuilder_.mergeFrom(value);
+        }
+        detectIntentResponseBuilder_.setMessage(value);
+      }
+      responseCase_ = 2;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The response from detect intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse detect_intent_response = 2;
+     * </code>
+     */
+    public Builder clearDetectIntentResponse() {
+      if (detectIntentResponseBuilder_ == null) {
+        if (responseCase_ == 2) {
+          responseCase_ = 0;
+          response_ = null;
+          onChanged();
+        }
+      } else {
+        if (responseCase_ == 2) {
+          responseCase_ = 0;
+          response_ = null;
+        }
+        detectIntentResponseBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The response from detect intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse detect_intent_response = 2;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse.Builder
+        getDetectIntentResponseBuilder() {
+      return getDetectIntentResponseFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The response from detect intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse detect_intent_response = 2;
+     * </code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponseOrBuilder
+        getDetectIntentResponseOrBuilder() {
+      if ((responseCase_ == 2) && (detectIntentResponseBuilder_ != null)) {
+        return detectIntentResponseBuilder_.getMessageOrBuilder();
+      } else {
+        if (responseCase_ == 2) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse) response_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse.getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The response from detect intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse detect_intent_response = 2;
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse,
+            com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponseOrBuilder>
+        getDetectIntentResponseFieldBuilder() {
+      if (detectIntentResponseBuilder_ == null) {
+        if (!(responseCase_ == 2)) {
+          response_ =
+              com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse.getDefaultInstance();
+        }
+        detectIntentResponseBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse,
+                com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponseOrBuilder>(
+                (com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse) response_,
+                getParentForChildren(),
+                isClean());
+        response_ = null;
+      }
+      responseCase_ = 2;
+      onChanged();
+      ;
+      return detectIntentResponseBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<StreamingDetectIntentResponse> PARSER =
+      new com.google.protobuf.AbstractParser<StreamingDetectIntentResponse>() {
+        @java.lang.Override
+        public StreamingDetectIntentResponse parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new StreamingDetectIntentResponse(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<StreamingDetectIntentResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<StreamingDetectIntentResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/StreamingDetectIntentResponseOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/StreamingDetectIntentResponseOrBuilder.java
new file mode 100644
index 000000000..25c102448
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/StreamingDetectIntentResponseOrBuilder.java
@@ -0,0 +1,106 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface StreamingDetectIntentResponseOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The result of speech recognition.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult recognition_result = 1;
+   * </code>
+   *
+   * @return Whether the recognitionResult field is set.
+   */
+  boolean hasRecognitionResult();
+  /**
+   *
+   *
+   * <pre>
+   * The result of speech recognition.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult recognition_result = 1;
+   * </code>
+   *
+   * @return The recognitionResult.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult getRecognitionResult();
+  /**
+   *
+   *
+   * <pre>
+   * The result of speech recognition.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult recognition_result = 1;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResultOrBuilder
+      getRecognitionResultOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The response from detect intent.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse detect_intent_response = 2;
+   * </code>
+   *
+   * @return Whether the detectIntentResponse field is set.
+   */
+  boolean hasDetectIntentResponse();
+  /**
+   *
+   *
+   * <pre>
+   * The response from detect intent.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse detect_intent_response = 2;
+   * </code>
+   *
+   * @return The detectIntentResponse.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse getDetectIntentResponse();
+  /**
+   *
+   *
+   * <pre>
+   * The response from detect intent.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse detect_intent_response = 2;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.DetectIntentResponseOrBuilder
+      getDetectIntentResponseOrBuilder();
+
+  public com.google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentResponse.ResponseCase
+      getResponseCase();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/StreamingRecognitionResult.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/StreamingRecognitionResult.java
new file mode 100644
index 000000000..2b7cea14d
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/StreamingRecognitionResult.java
@@ -0,0 +1,2248 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Contains a speech recognition result corresponding to a portion of the audio
+ * that is currently being processed or an indication that this is the end
+ * of the single requested utterance.
+ * Example:
+ * 1.  transcript: "tube"
+ * 2.  transcript: "to be a"
+ * 3.  transcript: "to be"
+ * 4.  transcript: "to be or not to be"
+ *     is_final: true
+ * 5.  transcript: " that's"
+ * 6.  transcript: " that is"
+ * 7.  message_type: `END_OF_SINGLE_UTTERANCE`
+ * 8.  transcript: " that is the question"
+ *     is_final: true
+ * Only two of the responses contain final results (#4 and #8 indicated by
+ * `is_final: true`). Concatenating these generates the full transcript: "to be
+ * or not to be that is the question".
+ * In each response we populate:
+ * *  for `TRANSCRIPT`: `transcript` and possibly `is_final`.
+ * *  for `END_OF_SINGLE_UTTERANCE`: only `message_type`.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult}
+ */
+public final class StreamingRecognitionResult extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult)
+    StreamingRecognitionResultOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use StreamingRecognitionResult.newBuilder() to construct.
+  private StreamingRecognitionResult(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private StreamingRecognitionResult() {
+    messageType_ = 0;
+    transcript_ = "";
+    speechWordInfo_ = java.util.Collections.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new StreamingRecognitionResult();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private StreamingRecognitionResult(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 8:
+            {
+              int rawValue = input.readEnum();
+
+              messageType_ = rawValue;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              transcript_ = s;
+              break;
+            }
+          case 24:
+            {
+              isFinal_ = input.readBool();
+              break;
+            }
+          case 37:
+            {
+              confidence_ = input.readFloat();
+              break;
+            }
+          case 53:
+            {
+              stability_ = input.readFloat();
+              break;
+            }
+          case 58:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                speechWordInfo_ =
+                    new java.util.ArrayList<
+                        com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              speechWordInfo_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo.parser(),
+                      extensionRegistry));
+              break;
+            }
+          case 66:
+            {
+              com.google.protobuf.Duration.Builder subBuilder = null;
+              if (speechEndOffset_ != null) {
+                subBuilder = speechEndOffset_.toBuilder();
+              }
+              speechEndOffset_ =
+                  input.readMessage(com.google.protobuf.Duration.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(speechEndOffset_);
+                speechEndOffset_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        speechWordInfo_ = java.util.Collections.unmodifiableList(speechWordInfo_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingRecognitionResult_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingRecognitionResult_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.class,
+            com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.Builder.class);
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * Type of the response message.
+   * </pre>
+   *
+   * Protobuf enum {@code google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType}
+   */
+  public enum MessageType implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     *
+     *
+     * <pre>
+     * Not specified. Should never be used.
+     * </pre>
+     *
+     * <code>MESSAGE_TYPE_UNSPECIFIED = 0;</code>
+     */
+    MESSAGE_TYPE_UNSPECIFIED(0),
+    /**
+     *
+     *
+     * <pre>
+     * Message contains a (possibly partial) transcript.
+     * </pre>
+     *
+     * <code>TRANSCRIPT = 1;</code>
+     */
+    TRANSCRIPT(1),
+    /**
+     *
+     *
+     * <pre>
+     * Event indicates that the server has detected the end of the user's speech
+     * utterance and expects no additional speech. Therefore, the server will
+     * not process additional audio (although it may subsequently return
+     * additional results). The client should stop sending additional audio
+     * data, half-close the gRPC connection, and wait for any additional results
+     * until the server closes the gRPC connection. This message is only sent if
+     * [`single_utterance`][google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.single_utterance] was set to
+     * `true`, and is not used otherwise.
+     * </pre>
+     *
+     * <code>END_OF_SINGLE_UTTERANCE = 2;</code>
+     */
+    END_OF_SINGLE_UTTERANCE(2),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     *
+     *
+     * <pre>
+     * Not specified. Should never be used.
+     * </pre>
+     *
+     * <code>MESSAGE_TYPE_UNSPECIFIED = 0;</code>
+     */
+    public static final int MESSAGE_TYPE_UNSPECIFIED_VALUE = 0;
+    /**
+     *
+     *
+     * <pre>
+     * Message contains a (possibly partial) transcript.
+     * </pre>
+     *
+     * <code>TRANSCRIPT = 1;</code>
+     */
+    public static final int TRANSCRIPT_VALUE = 1;
+    /**
+     *
+     *
+     * <pre>
+     * Event indicates that the server has detected the end of the user's speech
+     * utterance and expects no additional speech. Therefore, the server will
+     * not process additional audio (although it may subsequently return
+     * additional results). The client should stop sending additional audio
+     * data, half-close the gRPC connection, and wait for any additional results
+     * until the server closes the gRPC connection. This message is only sent if
+     * [`single_utterance`][google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.single_utterance] was set to
+     * `true`, and is not used otherwise.
+     * </pre>
+     *
+     * <code>END_OF_SINGLE_UTTERANCE = 2;</code>
+     */
+    public static final int END_OF_SINGLE_UTTERANCE_VALUE = 2;
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static MessageType valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static MessageType forNumber(int value) {
+      switch (value) {
+        case 0:
+          return MESSAGE_TYPE_UNSPECIFIED;
+        case 1:
+          return TRANSCRIPT;
+        case 2:
+          return END_OF_SINGLE_UTTERANCE;
+        default:
+          return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap<MessageType> internalGetValueMap() {
+      return internalValueMap;
+    }
+
+    private static final com.google.protobuf.Internal.EnumLiteMap<MessageType> internalValueMap =
+        new com.google.protobuf.Internal.EnumLiteMap<MessageType>() {
+          public MessageType findValueByNumber(int number) {
+            return MessageType.forNumber(number);
+          }
+        };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+
+    public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+      return getDescriptor();
+    }
+
+    public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.getDescriptor()
+          .getEnumTypes()
+          .get(0);
+    }
+
+    private static final MessageType[] VALUES = values();
+
+    public static MessageType valueOf(com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private MessageType(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType)
+  }
+
+  public static final int MESSAGE_TYPE_FIELD_NUMBER = 1;
+  private int messageType_;
+  /**
+   *
+   *
+   * <pre>
+   * Type of the result message.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType message_type = 1;
+   * </code>
+   *
+   * @return The enum numeric value on the wire for messageType.
+   */
+  @java.lang.Override
+  public int getMessageTypeValue() {
+    return messageType_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Type of the result message.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType message_type = 1;
+   * </code>
+   *
+   * @return The messageType.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType
+      getMessageType() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType result =
+        com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType.valueOf(
+            messageType_);
+    return result == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType.UNRECOGNIZED
+        : result;
+  }
+
+  public static final int TRANSCRIPT_FIELD_NUMBER = 2;
+  private volatile java.lang.Object transcript_;
+  /**
+   *
+   *
+   * <pre>
+   * Transcript text representing the words that the user spoke.
+   * Populated if and only if `message_type` = `TRANSCRIPT`.
+   * </pre>
+   *
+   * <code>string transcript = 2;</code>
+   *
+   * @return The transcript.
+   */
+  @java.lang.Override
+  public java.lang.String getTranscript() {
+    java.lang.Object ref = transcript_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      transcript_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Transcript text representing the words that the user spoke.
+   * Populated if and only if `message_type` = `TRANSCRIPT`.
+   * </pre>
+   *
+   * <code>string transcript = 2;</code>
+   *
+   * @return The bytes for transcript.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getTranscriptBytes() {
+    java.lang.Object ref = transcript_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      transcript_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int IS_FINAL_FIELD_NUMBER = 3;
+  private boolean isFinal_;
+  /**
+   *
+   *
+   * <pre>
+   * If `false`, the `StreamingRecognitionResult` represents an
+   * interim result that may change. If `true`, the recognizer will not return
+   * any further hypotheses about this piece of the audio. May only be populated
+   * for `message_type` = `TRANSCRIPT`.
+   * </pre>
+   *
+   * <code>bool is_final = 3;</code>
+   *
+   * @return The isFinal.
+   */
+  @java.lang.Override
+  public boolean getIsFinal() {
+    return isFinal_;
+  }
+
+  public static final int CONFIDENCE_FIELD_NUMBER = 4;
+  private float confidence_;
+  /**
+   *
+   *
+   * <pre>
+   * The Speech confidence between 0.0 and 1.0 for the current portion of audio.
+   * A higher number indicates an estimated greater likelihood that the
+   * recognized words are correct. The default of 0.0 is a sentinel value
+   * indicating that confidence was not set.
+   * This field is typically only provided if `is_final` is true and you should
+   * not rely on it being accurate or even set.
+   * </pre>
+   *
+   * <code>float confidence = 4;</code>
+   *
+   * @return The confidence.
+   */
+  @java.lang.Override
+  public float getConfidence() {
+    return confidence_;
+  }
+
+  public static final int STABILITY_FIELD_NUMBER = 6;
+  private float stability_;
+  /**
+   *
+   *
+   * <pre>
+   * An estimate of the likelihood that the speech recognizer will
+   * not change its guess about this interim recognition result:
+   * * If the value is unspecified or 0.0, Dialogflow didn't compute the
+   *   stability. In particular, Dialogflow will only provide stability for
+   *   `TRANSCRIPT` results with `is_final = false`.
+   * * Otherwise, the value is in (0.0, 1.0] where 0.0 means completely
+   *   unstable and 1.0 means completely stable.
+   * </pre>
+   *
+   * <code>float stability = 6;</code>
+   *
+   * @return The stability.
+   */
+  @java.lang.Override
+  public float getStability() {
+    return stability_;
+  }
+
+  public static final int SPEECH_WORD_INFO_FIELD_NUMBER = 7;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo> speechWordInfo_;
+  /**
+   *
+   *
+   * <pre>
+   * Word-specific information for the words recognized by Speech in
+   * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+   * [InputAudioConfig.enable_word_info] is set.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo>
+      getSpeechWordInfoList() {
+    return speechWordInfo_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Word-specific information for the words recognized by Speech in
+   * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+   * [InputAudioConfig.enable_word_info] is set.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfoOrBuilder>
+      getSpeechWordInfoOrBuilderList() {
+    return speechWordInfo_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Word-specific information for the words recognized by Speech in
+   * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+   * [InputAudioConfig.enable_word_info] is set.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;</code>
+   */
+  @java.lang.Override
+  public int getSpeechWordInfoCount() {
+    return speechWordInfo_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Word-specific information for the words recognized by Speech in
+   * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+   * [InputAudioConfig.enable_word_info] is set.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo getSpeechWordInfo(int index) {
+    return speechWordInfo_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Word-specific information for the words recognized by Speech in
+   * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+   * [InputAudioConfig.enable_word_info] is set.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfoOrBuilder getSpeechWordInfoOrBuilder(
+      int index) {
+    return speechWordInfo_.get(index);
+  }
+
+  public static final int SPEECH_END_OFFSET_FIELD_NUMBER = 8;
+  private com.google.protobuf.Duration speechEndOffset_;
+  /**
+   *
+   *
+   * <pre>
+   * Time offset of the end of this Speech recognition result relative to the
+   * beginning of the audio. Only populated for `message_type` =
+   * `TRANSCRIPT`.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration speech_end_offset = 8;</code>
+   *
+   * @return Whether the speechEndOffset field is set.
+   */
+  @java.lang.Override
+  public boolean hasSpeechEndOffset() {
+    return speechEndOffset_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Time offset of the end of this Speech recognition result relative to the
+   * beginning of the audio. Only populated for `message_type` =
+   * `TRANSCRIPT`.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration speech_end_offset = 8;</code>
+   *
+   * @return The speechEndOffset.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Duration getSpeechEndOffset() {
+    return speechEndOffset_ == null
+        ? com.google.protobuf.Duration.getDefaultInstance()
+        : speechEndOffset_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Time offset of the end of this Speech recognition result relative to the
+   * beginning of the audio. Only populated for `message_type` =
+   * `TRANSCRIPT`.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration speech_end_offset = 8;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.DurationOrBuilder getSpeechEndOffsetOrBuilder() {
+    return getSpeechEndOffset();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (messageType_
+        != com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType
+            .MESSAGE_TYPE_UNSPECIFIED
+            .getNumber()) {
+      output.writeEnum(1, messageType_);
+    }
+    if (!getTranscriptBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, transcript_);
+    }
+    if (isFinal_ != false) {
+      output.writeBool(3, isFinal_);
+    }
+    if (confidence_ != 0F) {
+      output.writeFloat(4, confidence_);
+    }
+    if (stability_ != 0F) {
+      output.writeFloat(6, stability_);
+    }
+    for (int i = 0; i < speechWordInfo_.size(); i++) {
+      output.writeMessage(7, speechWordInfo_.get(i));
+    }
+    if (speechEndOffset_ != null) {
+      output.writeMessage(8, getSpeechEndOffset());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (messageType_
+        != com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType
+            .MESSAGE_TYPE_UNSPECIFIED
+            .getNumber()) {
+      size += com.google.protobuf.CodedOutputStream.computeEnumSize(1, messageType_);
+    }
+    if (!getTranscriptBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, transcript_);
+    }
+    if (isFinal_ != false) {
+      size += com.google.protobuf.CodedOutputStream.computeBoolSize(3, isFinal_);
+    }
+    if (confidence_ != 0F) {
+      size += com.google.protobuf.CodedOutputStream.computeFloatSize(4, confidence_);
+    }
+    if (stability_ != 0F) {
+      size += com.google.protobuf.CodedOutputStream.computeFloatSize(6, stability_);
+    }
+    for (int i = 0; i < speechWordInfo_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(7, speechWordInfo_.get(i));
+    }
+    if (speechEndOffset_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(8, getSpeechEndOffset());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult other =
+        (com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult) obj;
+
+    if (messageType_ != other.messageType_) return false;
+    if (!getTranscript().equals(other.getTranscript())) return false;
+    if (getIsFinal() != other.getIsFinal()) return false;
+    if (java.lang.Float.floatToIntBits(getConfidence())
+        != java.lang.Float.floatToIntBits(other.getConfidence())) return false;
+    if (java.lang.Float.floatToIntBits(getStability())
+        != java.lang.Float.floatToIntBits(other.getStability())) return false;
+    if (!getSpeechWordInfoList().equals(other.getSpeechWordInfoList())) return false;
+    if (hasSpeechEndOffset() != other.hasSpeechEndOffset()) return false;
+    if (hasSpeechEndOffset()) {
+      if (!getSpeechEndOffset().equals(other.getSpeechEndOffset())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + MESSAGE_TYPE_FIELD_NUMBER;
+    hash = (53 * hash) + messageType_;
+    hash = (37 * hash) + TRANSCRIPT_FIELD_NUMBER;
+    hash = (53 * hash) + getTranscript().hashCode();
+    hash = (37 * hash) + IS_FINAL_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getIsFinal());
+    hash = (37 * hash) + CONFIDENCE_FIELD_NUMBER;
+    hash = (53 * hash) + java.lang.Float.floatToIntBits(getConfidence());
+    hash = (37 * hash) + STABILITY_FIELD_NUMBER;
+    hash = (53 * hash) + java.lang.Float.floatToIntBits(getStability());
+    if (getSpeechWordInfoCount() > 0) {
+      hash = (37 * hash) + SPEECH_WORD_INFO_FIELD_NUMBER;
+      hash = (53 * hash) + getSpeechWordInfoList().hashCode();
+    }
+    if (hasSpeechEndOffset()) {
+      hash = (37 * hash) + SPEECH_END_OFFSET_FIELD_NUMBER;
+      hash = (53 * hash) + getSpeechEndOffset().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult
+      parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult
+      parseDelimitedFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Contains a speech recognition result corresponding to a portion of the audio
+   * that is currently being processed or an indication that this is the end
+   * of the single requested utterance.
+   * Example:
+   * 1.  transcript: "tube"
+   * 2.  transcript: "to be a"
+   * 3.  transcript: "to be"
+   * 4.  transcript: "to be or not to be"
+   *     is_final: true
+   * 5.  transcript: " that's"
+   * 6.  transcript: " that is"
+   * 7.  message_type: `END_OF_SINGLE_UTTERANCE`
+   * 8.  transcript: " that is the question"
+   *     is_final: true
+   * Only two of the responses contain final results (#4 and #8 indicated by
+   * `is_final: true`). Concatenating these generates the full transcript: "to be
+   * or not to be that is the question".
+   * In each response we populate:
+   * *  for `TRANSCRIPT`: `transcript` and possibly `is_final`.
+   * *  for `END_OF_SINGLE_UTTERANCE`: only `message_type`.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult)
+      com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResultOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingRecognitionResult_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingRecognitionResult_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.class,
+              com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.Builder.class);
+    }
+
+    // Construct using
+    // com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getSpeechWordInfoFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      messageType_ = 0;
+
+      transcript_ = "";
+
+      isFinal_ = false;
+
+      confidence_ = 0F;
+
+      stability_ = 0F;
+
+      if (speechWordInfoBuilder_ == null) {
+        speechWordInfo_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        speechWordInfoBuilder_.clear();
+      }
+      if (speechEndOffsetBuilder_ == null) {
+        speechEndOffset_ = null;
+      } else {
+        speechEndOffset_ = null;
+        speechEndOffsetBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_StreamingRecognitionResult_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult build() {
+      com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult result =
+          new com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult(this);
+      int from_bitField0_ = bitField0_;
+      result.messageType_ = messageType_;
+      result.transcript_ = transcript_;
+      result.isFinal_ = isFinal_;
+      result.confidence_ = confidence_;
+      result.stability_ = stability_;
+      if (speechWordInfoBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          speechWordInfo_ = java.util.Collections.unmodifiableList(speechWordInfo_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.speechWordInfo_ = speechWordInfo_;
+      } else {
+        result.speechWordInfo_ = speechWordInfoBuilder_.build();
+      }
+      if (speechEndOffsetBuilder_ == null) {
+        result.speechEndOffset_ = speechEndOffset_;
+      } else {
+        result.speechEndOffset_ = speechEndOffsetBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.getDefaultInstance())
+        return this;
+      if (other.messageType_ != 0) {
+        setMessageTypeValue(other.getMessageTypeValue());
+      }
+      if (!other.getTranscript().isEmpty()) {
+        transcript_ = other.transcript_;
+        onChanged();
+      }
+      if (other.getIsFinal() != false) {
+        setIsFinal(other.getIsFinal());
+      }
+      if (other.getConfidence() != 0F) {
+        setConfidence(other.getConfidence());
+      }
+      if (other.getStability() != 0F) {
+        setStability(other.getStability());
+      }
+      if (speechWordInfoBuilder_ == null) {
+        if (!other.speechWordInfo_.isEmpty()) {
+          if (speechWordInfo_.isEmpty()) {
+            speechWordInfo_ = other.speechWordInfo_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureSpeechWordInfoIsMutable();
+            speechWordInfo_.addAll(other.speechWordInfo_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.speechWordInfo_.isEmpty()) {
+          if (speechWordInfoBuilder_.isEmpty()) {
+            speechWordInfoBuilder_.dispose();
+            speechWordInfoBuilder_ = null;
+            speechWordInfo_ = other.speechWordInfo_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            speechWordInfoBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getSpeechWordInfoFieldBuilder()
+                    : null;
+          } else {
+            speechWordInfoBuilder_.addAllMessages(other.speechWordInfo_);
+          }
+        }
+      }
+      if (other.hasSpeechEndOffset()) {
+        mergeSpeechEndOffset(other.getSpeechEndOffset());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private int messageType_ = 0;
+    /**
+     *
+     *
+     * <pre>
+     * Type of the result message.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType message_type = 1;
+     * </code>
+     *
+     * @return The enum numeric value on the wire for messageType.
+     */
+    @java.lang.Override
+    public int getMessageTypeValue() {
+      return messageType_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Type of the result message.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType message_type = 1;
+     * </code>
+     *
+     * @param value The enum numeric value on the wire for messageType to set.
+     * @return This builder for chaining.
+     */
+    public Builder setMessageTypeValue(int value) {
+
+      messageType_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Type of the result message.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType message_type = 1;
+     * </code>
+     *
+     * @return The messageType.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType
+        getMessageType() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType result =
+          com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType.valueOf(
+              messageType_);
+      return result == null
+          ? com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType
+              .UNRECOGNIZED
+          : result;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Type of the result message.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType message_type = 1;
+     * </code>
+     *
+     * @param value The messageType to set.
+     * @return This builder for chaining.
+     */
+    public Builder setMessageType(
+        com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      messageType_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Type of the result message.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType message_type = 1;
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearMessageType() {
+
+      messageType_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object transcript_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Transcript text representing the words that the user spoke.
+     * Populated if and only if `message_type` = `TRANSCRIPT`.
+     * </pre>
+     *
+     * <code>string transcript = 2;</code>
+     *
+     * @return The transcript.
+     */
+    public java.lang.String getTranscript() {
+      java.lang.Object ref = transcript_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        transcript_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Transcript text representing the words that the user spoke.
+     * Populated if and only if `message_type` = `TRANSCRIPT`.
+     * </pre>
+     *
+     * <code>string transcript = 2;</code>
+     *
+     * @return The bytes for transcript.
+     */
+    public com.google.protobuf.ByteString getTranscriptBytes() {
+      java.lang.Object ref = transcript_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        transcript_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Transcript text representing the words that the user spoke.
+     * Populated if and only if `message_type` = `TRANSCRIPT`.
+     * </pre>
+     *
+     * <code>string transcript = 2;</code>
+     *
+     * @param value The transcript to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTranscript(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      transcript_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Transcript text representing the words that the user spoke.
+     * Populated if and only if `message_type` = `TRANSCRIPT`.
+     * </pre>
+     *
+     * <code>string transcript = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearTranscript() {
+
+      transcript_ = getDefaultInstance().getTranscript();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Transcript text representing the words that the user spoke.
+     * Populated if and only if `message_type` = `TRANSCRIPT`.
+     * </pre>
+     *
+     * <code>string transcript = 2;</code>
+     *
+     * @param value The bytes for transcript to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTranscriptBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      transcript_ = value;
+      onChanged();
+      return this;
+    }
+
+    private boolean isFinal_;
+    /**
+     *
+     *
+     * <pre>
+     * If `false`, the `StreamingRecognitionResult` represents an
+     * interim result that may change. If `true`, the recognizer will not return
+     * any further hypotheses about this piece of the audio. May only be populated
+     * for `message_type` = `TRANSCRIPT`.
+     * </pre>
+     *
+     * <code>bool is_final = 3;</code>
+     *
+     * @return The isFinal.
+     */
+    @java.lang.Override
+    public boolean getIsFinal() {
+      return isFinal_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If `false`, the `StreamingRecognitionResult` represents an
+     * interim result that may change. If `true`, the recognizer will not return
+     * any further hypotheses about this piece of the audio. May only be populated
+     * for `message_type` = `TRANSCRIPT`.
+     * </pre>
+     *
+     * <code>bool is_final = 3;</code>
+     *
+     * @param value The isFinal to set.
+     * @return This builder for chaining.
+     */
+    public Builder setIsFinal(boolean value) {
+
+      isFinal_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * If `false`, the `StreamingRecognitionResult` represents an
+     * interim result that may change. If `true`, the recognizer will not return
+     * any further hypotheses about this piece of the audio. May only be populated
+     * for `message_type` = `TRANSCRIPT`.
+     * </pre>
+     *
+     * <code>bool is_final = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearIsFinal() {
+
+      isFinal_ = false;
+      onChanged();
+      return this;
+    }
+
+    private float confidence_;
+    /**
+     *
+     *
+     * <pre>
+     * The Speech confidence between 0.0 and 1.0 for the current portion of audio.
+     * A higher number indicates an estimated greater likelihood that the
+     * recognized words are correct. The default of 0.0 is a sentinel value
+     * indicating that confidence was not set.
+     * This field is typically only provided if `is_final` is true and you should
+     * not rely on it being accurate or even set.
+     * </pre>
+     *
+     * <code>float confidence = 4;</code>
+     *
+     * @return The confidence.
+     */
+    @java.lang.Override
+    public float getConfidence() {
+      return confidence_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The Speech confidence between 0.0 and 1.0 for the current portion of audio.
+     * A higher number indicates an estimated greater likelihood that the
+     * recognized words are correct. The default of 0.0 is a sentinel value
+     * indicating that confidence was not set.
+     * This field is typically only provided if `is_final` is true and you should
+     * not rely on it being accurate or even set.
+     * </pre>
+     *
+     * <code>float confidence = 4;</code>
+     *
+     * @param value The confidence to set.
+     * @return This builder for chaining.
+     */
+    public Builder setConfidence(float value) {
+
+      confidence_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The Speech confidence between 0.0 and 1.0 for the current portion of audio.
+     * A higher number indicates an estimated greater likelihood that the
+     * recognized words are correct. The default of 0.0 is a sentinel value
+     * indicating that confidence was not set.
+     * This field is typically only provided if `is_final` is true and you should
+     * not rely on it being accurate or even set.
+     * </pre>
+     *
+     * <code>float confidence = 4;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearConfidence() {
+
+      confidence_ = 0F;
+      onChanged();
+      return this;
+    }
+
+    private float stability_;
+    /**
+     *
+     *
+     * <pre>
+     * An estimate of the likelihood that the speech recognizer will
+     * not change its guess about this interim recognition result:
+     * * If the value is unspecified or 0.0, Dialogflow didn't compute the
+     *   stability. In particular, Dialogflow will only provide stability for
+     *   `TRANSCRIPT` results with `is_final = false`.
+     * * Otherwise, the value is in (0.0, 1.0] where 0.0 means completely
+     *   unstable and 1.0 means completely stable.
+     * </pre>
+     *
+     * <code>float stability = 6;</code>
+     *
+     * @return The stability.
+     */
+    @java.lang.Override
+    public float getStability() {
+      return stability_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * An estimate of the likelihood that the speech recognizer will
+     * not change its guess about this interim recognition result:
+     * * If the value is unspecified or 0.0, Dialogflow didn't compute the
+     *   stability. In particular, Dialogflow will only provide stability for
+     *   `TRANSCRIPT` results with `is_final = false`.
+     * * Otherwise, the value is in (0.0, 1.0] where 0.0 means completely
+     *   unstable and 1.0 means completely stable.
+     * </pre>
+     *
+     * <code>float stability = 6;</code>
+     *
+     * @param value The stability to set.
+     * @return This builder for chaining.
+     */
+    public Builder setStability(float value) {
+
+      stability_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * An estimate of the likelihood that the speech recognizer will
+     * not change its guess about this interim recognition result:
+     * * If the value is unspecified or 0.0, Dialogflow didn't compute the
+     *   stability. In particular, Dialogflow will only provide stability for
+     *   `TRANSCRIPT` results with `is_final = false`.
+     * * Otherwise, the value is in (0.0, 1.0] where 0.0 means completely
+     *   unstable and 1.0 means completely stable.
+     * </pre>
+     *
+     * <code>float stability = 6;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearStability() {
+
+      stability_ = 0F;
+      onChanged();
+      return this;
+    }
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo> speechWordInfo_ =
+        java.util.Collections.emptyList();
+
+    private void ensureSpeechWordInfoIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        speechWordInfo_ =
+            new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo>(
+                speechWordInfo_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo,
+            com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfoOrBuilder>
+        speechWordInfoBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * Word-specific information for the words recognized by Speech in
+     * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+     * [InputAudioConfig.enable_word_info] is set.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo>
+        getSpeechWordInfoList() {
+      if (speechWordInfoBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(speechWordInfo_);
+      } else {
+        return speechWordInfoBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Word-specific information for the words recognized by Speech in
+     * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+     * [InputAudioConfig.enable_word_info] is set.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;
+     * </code>
+     */
+    public int getSpeechWordInfoCount() {
+      if (speechWordInfoBuilder_ == null) {
+        return speechWordInfo_.size();
+      } else {
+        return speechWordInfoBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Word-specific information for the words recognized by Speech in
+     * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+     * [InputAudioConfig.enable_word_info] is set.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo getSpeechWordInfo(int index) {
+      if (speechWordInfoBuilder_ == null) {
+        return speechWordInfo_.get(index);
+      } else {
+        return speechWordInfoBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Word-specific information for the words recognized by Speech in
+     * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+     * [InputAudioConfig.enable_word_info] is set.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;
+     * </code>
+     */
+    public Builder setSpeechWordInfo(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo value) {
+      if (speechWordInfoBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureSpeechWordInfoIsMutable();
+        speechWordInfo_.set(index, value);
+        onChanged();
+      } else {
+        speechWordInfoBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Word-specific information for the words recognized by Speech in
+     * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+     * [InputAudioConfig.enable_word_info] is set.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;
+     * </code>
+     */
+    public Builder setSpeechWordInfo(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo.Builder builderForValue) {
+      if (speechWordInfoBuilder_ == null) {
+        ensureSpeechWordInfoIsMutable();
+        speechWordInfo_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        speechWordInfoBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Word-specific information for the words recognized by Speech in
+     * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+     * [InputAudioConfig.enable_word_info] is set.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;
+     * </code>
+     */
+    public Builder addSpeechWordInfo(com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo value) {
+      if (speechWordInfoBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureSpeechWordInfoIsMutable();
+        speechWordInfo_.add(value);
+        onChanged();
+      } else {
+        speechWordInfoBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Word-specific information for the words recognized by Speech in
+     * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+     * [InputAudioConfig.enable_word_info] is set.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;
+     * </code>
+     */
+    public Builder addSpeechWordInfo(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo value) {
+      if (speechWordInfoBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureSpeechWordInfoIsMutable();
+        speechWordInfo_.add(index, value);
+        onChanged();
+      } else {
+        speechWordInfoBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Word-specific information for the words recognized by Speech in
+     * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+     * [InputAudioConfig.enable_word_info] is set.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;
+     * </code>
+     */
+    public Builder addSpeechWordInfo(
+        com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo.Builder builderForValue) {
+      if (speechWordInfoBuilder_ == null) {
+        ensureSpeechWordInfoIsMutable();
+        speechWordInfo_.add(builderForValue.build());
+        onChanged();
+      } else {
+        speechWordInfoBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Word-specific information for the words recognized by Speech in
+     * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+     * [InputAudioConfig.enable_word_info] is set.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;
+     * </code>
+     */
+    public Builder addSpeechWordInfo(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo.Builder builderForValue) {
+      if (speechWordInfoBuilder_ == null) {
+        ensureSpeechWordInfoIsMutable();
+        speechWordInfo_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        speechWordInfoBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Word-specific information for the words recognized by Speech in
+     * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+     * [InputAudioConfig.enable_word_info] is set.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;
+     * </code>
+     */
+    public Builder addAllSpeechWordInfo(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo>
+            values) {
+      if (speechWordInfoBuilder_ == null) {
+        ensureSpeechWordInfoIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, speechWordInfo_);
+        onChanged();
+      } else {
+        speechWordInfoBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Word-specific information for the words recognized by Speech in
+     * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+     * [InputAudioConfig.enable_word_info] is set.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;
+     * </code>
+     */
+    public Builder clearSpeechWordInfo() {
+      if (speechWordInfoBuilder_ == null) {
+        speechWordInfo_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        speechWordInfoBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Word-specific information for the words recognized by Speech in
+     * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+     * [InputAudioConfig.enable_word_info] is set.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;
+     * </code>
+     */
+    public Builder removeSpeechWordInfo(int index) {
+      if (speechWordInfoBuilder_ == null) {
+        ensureSpeechWordInfoIsMutable();
+        speechWordInfo_.remove(index);
+        onChanged();
+      } else {
+        speechWordInfoBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Word-specific information for the words recognized by Speech in
+     * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+     * [InputAudioConfig.enable_word_info] is set.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo.Builder getSpeechWordInfoBuilder(
+        int index) {
+      return getSpeechWordInfoFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Word-specific information for the words recognized by Speech in
+     * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+     * [InputAudioConfig.enable_word_info] is set.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfoOrBuilder
+        getSpeechWordInfoOrBuilder(int index) {
+      if (speechWordInfoBuilder_ == null) {
+        return speechWordInfo_.get(index);
+      } else {
+        return speechWordInfoBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Word-specific information for the words recognized by Speech in
+     * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+     * [InputAudioConfig.enable_word_info] is set.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;
+     * </code>
+     */
+    public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfoOrBuilder>
+        getSpeechWordInfoOrBuilderList() {
+      if (speechWordInfoBuilder_ != null) {
+        return speechWordInfoBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(speechWordInfo_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Word-specific information for the words recognized by Speech in
+     * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+     * [InputAudioConfig.enable_word_info] is set.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo.Builder
+        addSpeechWordInfoBuilder() {
+      return getSpeechWordInfoFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Word-specific information for the words recognized by Speech in
+     * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+     * [InputAudioConfig.enable_word_info] is set.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo.Builder addSpeechWordInfoBuilder(
+        int index) {
+      return getSpeechWordInfoFieldBuilder()
+          .addBuilder(
+              index, com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Word-specific information for the words recognized by Speech in
+     * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+     * [InputAudioConfig.enable_word_info] is set.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo.Builder>
+        getSpeechWordInfoBuilderList() {
+      return getSpeechWordInfoFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo,
+            com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfoOrBuilder>
+        getSpeechWordInfoFieldBuilder() {
+      if (speechWordInfoBuilder_ == null) {
+        speechWordInfoBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo,
+                com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfoOrBuilder>(
+                speechWordInfo_,
+                ((bitField0_ & 0x00000001) != 0),
+                getParentForChildren(),
+                isClean());
+        speechWordInfo_ = null;
+      }
+      return speechWordInfoBuilder_;
+    }
+
+    private com.google.protobuf.Duration speechEndOffset_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Duration,
+            com.google.protobuf.Duration.Builder,
+            com.google.protobuf.DurationOrBuilder>
+        speechEndOffsetBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Time offset of the end of this Speech recognition result relative to the
+     * beginning of the audio. Only populated for `message_type` =
+     * `TRANSCRIPT`.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration speech_end_offset = 8;</code>
+     *
+     * @return Whether the speechEndOffset field is set.
+     */
+    public boolean hasSpeechEndOffset() {
+      return speechEndOffsetBuilder_ != null || speechEndOffset_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset of the end of this Speech recognition result relative to the
+     * beginning of the audio. Only populated for `message_type` =
+     * `TRANSCRIPT`.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration speech_end_offset = 8;</code>
+     *
+     * @return The speechEndOffset.
+     */
+    public com.google.protobuf.Duration getSpeechEndOffset() {
+      if (speechEndOffsetBuilder_ == null) {
+        return speechEndOffset_ == null
+            ? com.google.protobuf.Duration.getDefaultInstance()
+            : speechEndOffset_;
+      } else {
+        return speechEndOffsetBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset of the end of this Speech recognition result relative to the
+     * beginning of the audio. Only populated for `message_type` =
+     * `TRANSCRIPT`.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration speech_end_offset = 8;</code>
+     */
+    public Builder setSpeechEndOffset(com.google.protobuf.Duration value) {
+      if (speechEndOffsetBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        speechEndOffset_ = value;
+        onChanged();
+      } else {
+        speechEndOffsetBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset of the end of this Speech recognition result relative to the
+     * beginning of the audio. Only populated for `message_type` =
+     * `TRANSCRIPT`.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration speech_end_offset = 8;</code>
+     */
+    public Builder setSpeechEndOffset(com.google.protobuf.Duration.Builder builderForValue) {
+      if (speechEndOffsetBuilder_ == null) {
+        speechEndOffset_ = builderForValue.build();
+        onChanged();
+      } else {
+        speechEndOffsetBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset of the end of this Speech recognition result relative to the
+     * beginning of the audio. Only populated for `message_type` =
+     * `TRANSCRIPT`.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration speech_end_offset = 8;</code>
+     */
+    public Builder mergeSpeechEndOffset(com.google.protobuf.Duration value) {
+      if (speechEndOffsetBuilder_ == null) {
+        if (speechEndOffset_ != null) {
+          speechEndOffset_ =
+              com.google.protobuf.Duration.newBuilder(speechEndOffset_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          speechEndOffset_ = value;
+        }
+        onChanged();
+      } else {
+        speechEndOffsetBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset of the end of this Speech recognition result relative to the
+     * beginning of the audio. Only populated for `message_type` =
+     * `TRANSCRIPT`.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration speech_end_offset = 8;</code>
+     */
+    public Builder clearSpeechEndOffset() {
+      if (speechEndOffsetBuilder_ == null) {
+        speechEndOffset_ = null;
+        onChanged();
+      } else {
+        speechEndOffset_ = null;
+        speechEndOffsetBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset of the end of this Speech recognition result relative to the
+     * beginning of the audio. Only populated for `message_type` =
+     * `TRANSCRIPT`.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration speech_end_offset = 8;</code>
+     */
+    public com.google.protobuf.Duration.Builder getSpeechEndOffsetBuilder() {
+
+      onChanged();
+      return getSpeechEndOffsetFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset of the end of this Speech recognition result relative to the
+     * beginning of the audio. Only populated for `message_type` =
+     * `TRANSCRIPT`.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration speech_end_offset = 8;</code>
+     */
+    public com.google.protobuf.DurationOrBuilder getSpeechEndOffsetOrBuilder() {
+      if (speechEndOffsetBuilder_ != null) {
+        return speechEndOffsetBuilder_.getMessageOrBuilder();
+      } else {
+        return speechEndOffset_ == null
+            ? com.google.protobuf.Duration.getDefaultInstance()
+            : speechEndOffset_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Time offset of the end of this Speech recognition result relative to the
+     * beginning of the audio. Only populated for `message_type` =
+     * `TRANSCRIPT`.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration speech_end_offset = 8;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Duration,
+            com.google.protobuf.Duration.Builder,
+            com.google.protobuf.DurationOrBuilder>
+        getSpeechEndOffsetFieldBuilder() {
+      if (speechEndOffsetBuilder_ == null) {
+        speechEndOffsetBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.Duration,
+                com.google.protobuf.Duration.Builder,
+                com.google.protobuf.DurationOrBuilder>(
+                getSpeechEndOffset(), getParentForChildren(), isClean());
+        speechEndOffset_ = null;
+      }
+      return speechEndOffsetBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<StreamingRecognitionResult> PARSER =
+      new com.google.protobuf.AbstractParser<StreamingRecognitionResult>() {
+        @java.lang.Override
+        public StreamingRecognitionResult parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new StreamingRecognitionResult(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<StreamingRecognitionResult> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<StreamingRecognitionResult> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/StreamingRecognitionResultOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/StreamingRecognitionResultOrBuilder.java
new file mode 100644
index 000000000..c661fa7cb
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/StreamingRecognitionResultOrBuilder.java
@@ -0,0 +1,238 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface StreamingRecognitionResultOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Type of the result message.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType message_type = 1;
+   * </code>
+   *
+   * @return The enum numeric value on the wire for messageType.
+   */
+  int getMessageTypeValue();
+  /**
+   *
+   *
+   * <pre>
+   * Type of the result message.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType message_type = 1;
+   * </code>
+   *
+   * @return The messageType.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.MessageType getMessageType();
+
+  /**
+   *
+   *
+   * <pre>
+   * Transcript text representing the words that the user spoke.
+   * Populated if and only if `message_type` = `TRANSCRIPT`.
+   * </pre>
+   *
+   * <code>string transcript = 2;</code>
+   *
+   * @return The transcript.
+   */
+  java.lang.String getTranscript();
+  /**
+   *
+   *
+   * <pre>
+   * Transcript text representing the words that the user spoke.
+   * Populated if and only if `message_type` = `TRANSCRIPT`.
+   * </pre>
+   *
+   * <code>string transcript = 2;</code>
+   *
+   * @return The bytes for transcript.
+   */
+  com.google.protobuf.ByteString getTranscriptBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * If `false`, the `StreamingRecognitionResult` represents an
+   * interim result that may change. If `true`, the recognizer will not return
+   * any further hypotheses about this piece of the audio. May only be populated
+   * for `message_type` = `TRANSCRIPT`.
+   * </pre>
+   *
+   * <code>bool is_final = 3;</code>
+   *
+   * @return The isFinal.
+   */
+  boolean getIsFinal();
+
+  /**
+   *
+   *
+   * <pre>
+   * The Speech confidence between 0.0 and 1.0 for the current portion of audio.
+   * A higher number indicates an estimated greater likelihood that the
+   * recognized words are correct. The default of 0.0 is a sentinel value
+   * indicating that confidence was not set.
+   * This field is typically only provided if `is_final` is true and you should
+   * not rely on it being accurate or even set.
+   * </pre>
+   *
+   * <code>float confidence = 4;</code>
+   *
+   * @return The confidence.
+   */
+  float getConfidence();
+
+  /**
+   *
+   *
+   * <pre>
+   * An estimate of the likelihood that the speech recognizer will
+   * not change its guess about this interim recognition result:
+   * * If the value is unspecified or 0.0, Dialogflow didn't compute the
+   *   stability. In particular, Dialogflow will only provide stability for
+   *   `TRANSCRIPT` results with `is_final = false`.
+   * * Otherwise, the value is in (0.0, 1.0] where 0.0 means completely
+   *   unstable and 1.0 means completely stable.
+   * </pre>
+   *
+   * <code>float stability = 6;</code>
+   *
+   * @return The stability.
+   */
+  float getStability();
+
+  /**
+   *
+   *
+   * <pre>
+   * Word-specific information for the words recognized by Speech in
+   * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+   * [InputAudioConfig.enable_word_info] is set.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;</code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo> getSpeechWordInfoList();
+  /**
+   *
+   *
+   * <pre>
+   * Word-specific information for the words recognized by Speech in
+   * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+   * [InputAudioConfig.enable_word_info] is set.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo getSpeechWordInfo(int index);
+  /**
+   *
+   *
+   * <pre>
+   * Word-specific information for the words recognized by Speech in
+   * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+   * [InputAudioConfig.enable_word_info] is set.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;</code>
+   */
+  int getSpeechWordInfoCount();
+  /**
+   *
+   *
+   * <pre>
+   * Word-specific information for the words recognized by Speech in
+   * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+   * [InputAudioConfig.enable_word_info] is set.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;</code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfoOrBuilder>
+      getSpeechWordInfoOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * Word-specific information for the words recognized by Speech in
+   * [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+   * [InputAudioConfig.enable_word_info] is set.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo speech_word_info = 7;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.SpeechWordInfoOrBuilder getSpeechWordInfoOrBuilder(
+      int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * Time offset of the end of this Speech recognition result relative to the
+   * beginning of the audio. Only populated for `message_type` =
+   * `TRANSCRIPT`.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration speech_end_offset = 8;</code>
+   *
+   * @return Whether the speechEndOffset field is set.
+   */
+  boolean hasSpeechEndOffset();
+  /**
+   *
+   *
+   * <pre>
+   * Time offset of the end of this Speech recognition result relative to the
+   * beginning of the audio. Only populated for `message_type` =
+   * `TRANSCRIPT`.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration speech_end_offset = 8;</code>
+   *
+   * @return The speechEndOffset.
+   */
+  com.google.protobuf.Duration getSpeechEndOffset();
+  /**
+   *
+   *
+   * <pre>
+   * Time offset of the end of this Speech recognition result relative to the
+   * beginning of the audio. Only populated for `message_type` =
+   * `TRANSCRIPT`.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration speech_end_offset = 8;</code>
+   */
+  com.google.protobuf.DurationOrBuilder getSpeechEndOffsetOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SynthesizeSpeechConfig.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SynthesizeSpeechConfig.java
new file mode 100644
index 000000000..17482bf49
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SynthesizeSpeechConfig.java
@@ -0,0 +1,1377 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/audio_config.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Configuration of how speech should be synthesized.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig}
+ */
+public final class SynthesizeSpeechConfig extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig)
+    SynthesizeSpeechConfigOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use SynthesizeSpeechConfig.newBuilder() to construct.
+  private SynthesizeSpeechConfig(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private SynthesizeSpeechConfig() {
+    effectsProfileId_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new SynthesizeSpeechConfig();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private SynthesizeSpeechConfig(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 9:
+            {
+              speakingRate_ = input.readDouble();
+              break;
+            }
+          case 17:
+            {
+              pitch_ = input.readDouble();
+              break;
+            }
+          case 25:
+            {
+              volumeGainDb_ = input.readDouble();
+              break;
+            }
+          case 34:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.Builder subBuilder = null;
+              if (voice_ != null) {
+                subBuilder = voice_.toBuilder();
+              }
+              voice_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(voice_);
+                voice_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 42:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                effectsProfileId_ = new com.google.protobuf.LazyStringArrayList();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              effectsProfileId_.add(s);
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        effectsProfileId_ = effectsProfileId_.getUnmodifiableView();
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_SynthesizeSpeechConfig_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_SynthesizeSpeechConfig_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig.class,
+            com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig.Builder.class);
+  }
+
+  public static final int SPEAKING_RATE_FIELD_NUMBER = 1;
+  private double speakingRate_;
+  /**
+   *
+   *
+   * <pre>
+   * Optional. Speaking rate/speed, in the range [0.25, 4.0]. 1.0 is the normal
+   * native speed supported by the specific voice. 2.0 is twice as fast, and
+   * 0.5 is half as fast. If unset(0.0), defaults to the native 1.0 speed. Any
+   * other values &lt; 0.25 or &gt; 4.0 will return an error.
+   * </pre>
+   *
+   * <code>double speaking_rate = 1;</code>
+   *
+   * @return The speakingRate.
+   */
+  @java.lang.Override
+  public double getSpeakingRate() {
+    return speakingRate_;
+  }
+
+  public static final int PITCH_FIELD_NUMBER = 2;
+  private double pitch_;
+  /**
+   *
+   *
+   * <pre>
+   * Optional. Speaking pitch, in the range [-20.0, 20.0]. 20 means increase 20
+   * semitones from the original pitch. -20 means decrease 20 semitones from the
+   * original pitch.
+   * </pre>
+   *
+   * <code>double pitch = 2;</code>
+   *
+   * @return The pitch.
+   */
+  @java.lang.Override
+  public double getPitch() {
+    return pitch_;
+  }
+
+  public static final int VOLUME_GAIN_DB_FIELD_NUMBER = 3;
+  private double volumeGainDb_;
+  /**
+   *
+   *
+   * <pre>
+   * Optional. Volume gain (in dB) of the normal native volume supported by the
+   * specific voice, in the range [-96.0, 16.0]. If unset, or set to a value of
+   * 0.0 (dB), will play at normal native signal amplitude. A value of -6.0 (dB)
+   * will play at approximately half the amplitude of the normal native signal
+   * amplitude. A value of +6.0 (dB) will play at approximately twice the
+   * amplitude of the normal native signal amplitude. We strongly recommend not
+   * to exceed +10 (dB) as there's usually no effective increase in loudness for
+   * any value greater than that.
+   * </pre>
+   *
+   * <code>double volume_gain_db = 3;</code>
+   *
+   * @return The volumeGainDb.
+   */
+  @java.lang.Override
+  public double getVolumeGainDb() {
+    return volumeGainDb_;
+  }
+
+  public static final int EFFECTS_PROFILE_ID_FIELD_NUMBER = 5;
+  private com.google.protobuf.LazyStringList effectsProfileId_;
+  /**
+   *
+   *
+   * <pre>
+   * Optional. An identifier which selects 'audio effects' profiles that are
+   * applied on (post synthesized) text to speech. Effects are applied on top of
+   * each other in the order they are given.
+   * </pre>
+   *
+   * <code>repeated string effects_profile_id = 5;</code>
+   *
+   * @return A list containing the effectsProfileId.
+   */
+  public com.google.protobuf.ProtocolStringList getEffectsProfileIdList() {
+    return effectsProfileId_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Optional. An identifier which selects 'audio effects' profiles that are
+   * applied on (post synthesized) text to speech. Effects are applied on top of
+   * each other in the order they are given.
+   * </pre>
+   *
+   * <code>repeated string effects_profile_id = 5;</code>
+   *
+   * @return The count of effectsProfileId.
+   */
+  public int getEffectsProfileIdCount() {
+    return effectsProfileId_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Optional. An identifier which selects 'audio effects' profiles that are
+   * applied on (post synthesized) text to speech. Effects are applied on top of
+   * each other in the order they are given.
+   * </pre>
+   *
+   * <code>repeated string effects_profile_id = 5;</code>
+   *
+   * @param index The index of the element to return.
+   * @return The effectsProfileId at the given index.
+   */
+  public java.lang.String getEffectsProfileId(int index) {
+    return effectsProfileId_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Optional. An identifier which selects 'audio effects' profiles that are
+   * applied on (post synthesized) text to speech. Effects are applied on top of
+   * each other in the order they are given.
+   * </pre>
+   *
+   * <code>repeated string effects_profile_id = 5;</code>
+   *
+   * @param index The index of the value to return.
+   * @return The bytes of the effectsProfileId at the given index.
+   */
+  public com.google.protobuf.ByteString getEffectsProfileIdBytes(int index) {
+    return effectsProfileId_.getByteString(index);
+  }
+
+  public static final int VOICE_FIELD_NUMBER = 4;
+  private com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams voice_;
+  /**
+   *
+   *
+   * <pre>
+   * Optional. The desired voice of the synthesized audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams voice = 4;</code>
+   *
+   * @return Whether the voice field is set.
+   */
+  @java.lang.Override
+  public boolean hasVoice() {
+    return voice_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Optional. The desired voice of the synthesized audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams voice = 4;</code>
+   *
+   * @return The voice.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams getVoice() {
+    return voice_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.getDefaultInstance()
+        : voice_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Optional. The desired voice of the synthesized audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams voice = 4;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParamsOrBuilder getVoiceOrBuilder() {
+    return getVoice();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (speakingRate_ != 0D) {
+      output.writeDouble(1, speakingRate_);
+    }
+    if (pitch_ != 0D) {
+      output.writeDouble(2, pitch_);
+    }
+    if (volumeGainDb_ != 0D) {
+      output.writeDouble(3, volumeGainDb_);
+    }
+    if (voice_ != null) {
+      output.writeMessage(4, getVoice());
+    }
+    for (int i = 0; i < effectsProfileId_.size(); i++) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 5, effectsProfileId_.getRaw(i));
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (speakingRate_ != 0D) {
+      size += com.google.protobuf.CodedOutputStream.computeDoubleSize(1, speakingRate_);
+    }
+    if (pitch_ != 0D) {
+      size += com.google.protobuf.CodedOutputStream.computeDoubleSize(2, pitch_);
+    }
+    if (volumeGainDb_ != 0D) {
+      size += com.google.protobuf.CodedOutputStream.computeDoubleSize(3, volumeGainDb_);
+    }
+    if (voice_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, getVoice());
+    }
+    {
+      int dataSize = 0;
+      for (int i = 0; i < effectsProfileId_.size(); i++) {
+        dataSize += computeStringSizeNoTag(effectsProfileId_.getRaw(i));
+      }
+      size += dataSize;
+      size += 1 * getEffectsProfileIdList().size();
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig other =
+        (com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig) obj;
+
+    if (java.lang.Double.doubleToLongBits(getSpeakingRate())
+        != java.lang.Double.doubleToLongBits(other.getSpeakingRate())) return false;
+    if (java.lang.Double.doubleToLongBits(getPitch())
+        != java.lang.Double.doubleToLongBits(other.getPitch())) return false;
+    if (java.lang.Double.doubleToLongBits(getVolumeGainDb())
+        != java.lang.Double.doubleToLongBits(other.getVolumeGainDb())) return false;
+    if (!getEffectsProfileIdList().equals(other.getEffectsProfileIdList())) return false;
+    if (hasVoice() != other.hasVoice()) return false;
+    if (hasVoice()) {
+      if (!getVoice().equals(other.getVoice())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + SPEAKING_RATE_FIELD_NUMBER;
+    hash =
+        (53 * hash)
+            + com.google.protobuf.Internal.hashLong(
+                java.lang.Double.doubleToLongBits(getSpeakingRate()));
+    hash = (37 * hash) + PITCH_FIELD_NUMBER;
+    hash =
+        (53 * hash)
+            + com.google.protobuf.Internal.hashLong(java.lang.Double.doubleToLongBits(getPitch()));
+    hash = (37 * hash) + VOLUME_GAIN_DB_FIELD_NUMBER;
+    hash =
+        (53 * hash)
+            + com.google.protobuf.Internal.hashLong(
+                java.lang.Double.doubleToLongBits(getVolumeGainDb()));
+    if (getEffectsProfileIdCount() > 0) {
+      hash = (37 * hash) + EFFECTS_PROFILE_ID_FIELD_NUMBER;
+      hash = (53 * hash) + getEffectsProfileIdList().hashCode();
+    }
+    if (hasVoice()) {
+      hash = (37 * hash) + VOICE_FIELD_NUMBER;
+      hash = (53 * hash) + getVoice().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Configuration of how speech should be synthesized.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig)
+      com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfigOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_SynthesizeSpeechConfig_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_SynthesizeSpeechConfig_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig.class,
+              com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      speakingRate_ = 0D;
+
+      pitch_ = 0D;
+
+      volumeGainDb_ = 0D;
+
+      effectsProfileId_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000001);
+      if (voiceBuilder_ == null) {
+        voice_ = null;
+      } else {
+        voice_ = null;
+        voiceBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_SynthesizeSpeechConfig_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig build() {
+      com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig result =
+          new com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig(this);
+      int from_bitField0_ = bitField0_;
+      result.speakingRate_ = speakingRate_;
+      result.pitch_ = pitch_;
+      result.volumeGainDb_ = volumeGainDb_;
+      if (((bitField0_ & 0x00000001) != 0)) {
+        effectsProfileId_ = effectsProfileId_.getUnmodifiableView();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      }
+      result.effectsProfileId_ = effectsProfileId_;
+      if (voiceBuilder_ == null) {
+        result.voice_ = voice_;
+      } else {
+        result.voice_ = voiceBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig.getDefaultInstance())
+        return this;
+      if (other.getSpeakingRate() != 0D) {
+        setSpeakingRate(other.getSpeakingRate());
+      }
+      if (other.getPitch() != 0D) {
+        setPitch(other.getPitch());
+      }
+      if (other.getVolumeGainDb() != 0D) {
+        setVolumeGainDb(other.getVolumeGainDb());
+      }
+      if (!other.effectsProfileId_.isEmpty()) {
+        if (effectsProfileId_.isEmpty()) {
+          effectsProfileId_ = other.effectsProfileId_;
+          bitField0_ = (bitField0_ & ~0x00000001);
+        } else {
+          ensureEffectsProfileIdIsMutable();
+          effectsProfileId_.addAll(other.effectsProfileId_);
+        }
+        onChanged();
+      }
+      if (other.hasVoice()) {
+        mergeVoice(other.getVoice());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private double speakingRate_;
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Speaking rate/speed, in the range [0.25, 4.0]. 1.0 is the normal
+     * native speed supported by the specific voice. 2.0 is twice as fast, and
+     * 0.5 is half as fast. If unset(0.0), defaults to the native 1.0 speed. Any
+     * other values &lt; 0.25 or &gt; 4.0 will return an error.
+     * </pre>
+     *
+     * <code>double speaking_rate = 1;</code>
+     *
+     * @return The speakingRate.
+     */
+    @java.lang.Override
+    public double getSpeakingRate() {
+      return speakingRate_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Speaking rate/speed, in the range [0.25, 4.0]. 1.0 is the normal
+     * native speed supported by the specific voice. 2.0 is twice as fast, and
+     * 0.5 is half as fast. If unset(0.0), defaults to the native 1.0 speed. Any
+     * other values &lt; 0.25 or &gt; 4.0 will return an error.
+     * </pre>
+     *
+     * <code>double speaking_rate = 1;</code>
+     *
+     * @param value The speakingRate to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSpeakingRate(double value) {
+
+      speakingRate_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Speaking rate/speed, in the range [0.25, 4.0]. 1.0 is the normal
+     * native speed supported by the specific voice. 2.0 is twice as fast, and
+     * 0.5 is half as fast. If unset(0.0), defaults to the native 1.0 speed. Any
+     * other values &lt; 0.25 or &gt; 4.0 will return an error.
+     * </pre>
+     *
+     * <code>double speaking_rate = 1;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearSpeakingRate() {
+
+      speakingRate_ = 0D;
+      onChanged();
+      return this;
+    }
+
+    private double pitch_;
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Speaking pitch, in the range [-20.0, 20.0]. 20 means increase 20
+     * semitones from the original pitch. -20 means decrease 20 semitones from the
+     * original pitch.
+     * </pre>
+     *
+     * <code>double pitch = 2;</code>
+     *
+     * @return The pitch.
+     */
+    @java.lang.Override
+    public double getPitch() {
+      return pitch_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Speaking pitch, in the range [-20.0, 20.0]. 20 means increase 20
+     * semitones from the original pitch. -20 means decrease 20 semitones from the
+     * original pitch.
+     * </pre>
+     *
+     * <code>double pitch = 2;</code>
+     *
+     * @param value The pitch to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPitch(double value) {
+
+      pitch_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Speaking pitch, in the range [-20.0, 20.0]. 20 means increase 20
+     * semitones from the original pitch. -20 means decrease 20 semitones from the
+     * original pitch.
+     * </pre>
+     *
+     * <code>double pitch = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPitch() {
+
+      pitch_ = 0D;
+      onChanged();
+      return this;
+    }
+
+    private double volumeGainDb_;
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Volume gain (in dB) of the normal native volume supported by the
+     * specific voice, in the range [-96.0, 16.0]. If unset, or set to a value of
+     * 0.0 (dB), will play at normal native signal amplitude. A value of -6.0 (dB)
+     * will play at approximately half the amplitude of the normal native signal
+     * amplitude. A value of +6.0 (dB) will play at approximately twice the
+     * amplitude of the normal native signal amplitude. We strongly recommend not
+     * to exceed +10 (dB) as there's usually no effective increase in loudness for
+     * any value greater than that.
+     * </pre>
+     *
+     * <code>double volume_gain_db = 3;</code>
+     *
+     * @return The volumeGainDb.
+     */
+    @java.lang.Override
+    public double getVolumeGainDb() {
+      return volumeGainDb_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Volume gain (in dB) of the normal native volume supported by the
+     * specific voice, in the range [-96.0, 16.0]. If unset, or set to a value of
+     * 0.0 (dB), will play at normal native signal amplitude. A value of -6.0 (dB)
+     * will play at approximately half the amplitude of the normal native signal
+     * amplitude. A value of +6.0 (dB) will play at approximately twice the
+     * amplitude of the normal native signal amplitude. We strongly recommend not
+     * to exceed +10 (dB) as there's usually no effective increase in loudness for
+     * any value greater than that.
+     * </pre>
+     *
+     * <code>double volume_gain_db = 3;</code>
+     *
+     * @param value The volumeGainDb to set.
+     * @return This builder for chaining.
+     */
+    public Builder setVolumeGainDb(double value) {
+
+      volumeGainDb_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. Volume gain (in dB) of the normal native volume supported by the
+     * specific voice, in the range [-96.0, 16.0]. If unset, or set to a value of
+     * 0.0 (dB), will play at normal native signal amplitude. A value of -6.0 (dB)
+     * will play at approximately half the amplitude of the normal native signal
+     * amplitude. A value of +6.0 (dB) will play at approximately twice the
+     * amplitude of the normal native signal amplitude. We strongly recommend not
+     * to exceed +10 (dB) as there's usually no effective increase in loudness for
+     * any value greater than that.
+     * </pre>
+     *
+     * <code>double volume_gain_db = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearVolumeGainDb() {
+
+      volumeGainDb_ = 0D;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.LazyStringList effectsProfileId_ =
+        com.google.protobuf.LazyStringArrayList.EMPTY;
+
+    private void ensureEffectsProfileIdIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        effectsProfileId_ = new com.google.protobuf.LazyStringArrayList(effectsProfileId_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. An identifier which selects 'audio effects' profiles that are
+     * applied on (post synthesized) text to speech. Effects are applied on top of
+     * each other in the order they are given.
+     * </pre>
+     *
+     * <code>repeated string effects_profile_id = 5;</code>
+     *
+     * @return A list containing the effectsProfileId.
+     */
+    public com.google.protobuf.ProtocolStringList getEffectsProfileIdList() {
+      return effectsProfileId_.getUnmodifiableView();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. An identifier which selects 'audio effects' profiles that are
+     * applied on (post synthesized) text to speech. Effects are applied on top of
+     * each other in the order they are given.
+     * </pre>
+     *
+     * <code>repeated string effects_profile_id = 5;</code>
+     *
+     * @return The count of effectsProfileId.
+     */
+    public int getEffectsProfileIdCount() {
+      return effectsProfileId_.size();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. An identifier which selects 'audio effects' profiles that are
+     * applied on (post synthesized) text to speech. Effects are applied on top of
+     * each other in the order they are given.
+     * </pre>
+     *
+     * <code>repeated string effects_profile_id = 5;</code>
+     *
+     * @param index The index of the element to return.
+     * @return The effectsProfileId at the given index.
+     */
+    public java.lang.String getEffectsProfileId(int index) {
+      return effectsProfileId_.get(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. An identifier which selects 'audio effects' profiles that are
+     * applied on (post synthesized) text to speech. Effects are applied on top of
+     * each other in the order they are given.
+     * </pre>
+     *
+     * <code>repeated string effects_profile_id = 5;</code>
+     *
+     * @param index The index of the value to return.
+     * @return The bytes of the effectsProfileId at the given index.
+     */
+    public com.google.protobuf.ByteString getEffectsProfileIdBytes(int index) {
+      return effectsProfileId_.getByteString(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. An identifier which selects 'audio effects' profiles that are
+     * applied on (post synthesized) text to speech. Effects are applied on top of
+     * each other in the order they are given.
+     * </pre>
+     *
+     * <code>repeated string effects_profile_id = 5;</code>
+     *
+     * @param index The index to set the value at.
+     * @param value The effectsProfileId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEffectsProfileId(int index, java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      ensureEffectsProfileIdIsMutable();
+      effectsProfileId_.set(index, value);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. An identifier which selects 'audio effects' profiles that are
+     * applied on (post synthesized) text to speech. Effects are applied on top of
+     * each other in the order they are given.
+     * </pre>
+     *
+     * <code>repeated string effects_profile_id = 5;</code>
+     *
+     * @param value The effectsProfileId to add.
+     * @return This builder for chaining.
+     */
+    public Builder addEffectsProfileId(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      ensureEffectsProfileIdIsMutable();
+      effectsProfileId_.add(value);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. An identifier which selects 'audio effects' profiles that are
+     * applied on (post synthesized) text to speech. Effects are applied on top of
+     * each other in the order they are given.
+     * </pre>
+     *
+     * <code>repeated string effects_profile_id = 5;</code>
+     *
+     * @param values The effectsProfileId to add.
+     * @return This builder for chaining.
+     */
+    public Builder addAllEffectsProfileId(java.lang.Iterable<java.lang.String> values) {
+      ensureEffectsProfileIdIsMutable();
+      com.google.protobuf.AbstractMessageLite.Builder.addAll(values, effectsProfileId_);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. An identifier which selects 'audio effects' profiles that are
+     * applied on (post synthesized) text to speech. Effects are applied on top of
+     * each other in the order they are given.
+     * </pre>
+     *
+     * <code>repeated string effects_profile_id = 5;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearEffectsProfileId() {
+      effectsProfileId_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000001);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. An identifier which selects 'audio effects' profiles that are
+     * applied on (post synthesized) text to speech. Effects are applied on top of
+     * each other in the order they are given.
+     * </pre>
+     *
+     * <code>repeated string effects_profile_id = 5;</code>
+     *
+     * @param value The bytes of the effectsProfileId to add.
+     * @return This builder for chaining.
+     */
+    public Builder addEffectsProfileIdBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      ensureEffectsProfileIdIsMutable();
+      effectsProfileId_.add(value);
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams voice_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams,
+            com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParamsOrBuilder>
+        voiceBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The desired voice of the synthesized audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams voice = 4;</code>
+     *
+     * @return Whether the voice field is set.
+     */
+    public boolean hasVoice() {
+      return voiceBuilder_ != null || voice_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The desired voice of the synthesized audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams voice = 4;</code>
+     *
+     * @return The voice.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams getVoice() {
+      if (voiceBuilder_ == null) {
+        return voice_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.getDefaultInstance()
+            : voice_;
+      } else {
+        return voiceBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The desired voice of the synthesized audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams voice = 4;</code>
+     */
+    public Builder setVoice(com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams value) {
+      if (voiceBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        voice_ = value;
+        onChanged();
+      } else {
+        voiceBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The desired voice of the synthesized audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams voice = 4;</code>
+     */
+    public Builder setVoice(
+        com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.Builder builderForValue) {
+      if (voiceBuilder_ == null) {
+        voice_ = builderForValue.build();
+        onChanged();
+      } else {
+        voiceBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The desired voice of the synthesized audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams voice = 4;</code>
+     */
+    public Builder mergeVoice(com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams value) {
+      if (voiceBuilder_ == null) {
+        if (voice_ != null) {
+          voice_ =
+              com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.newBuilder(voice_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          voice_ = value;
+        }
+        onChanged();
+      } else {
+        voiceBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The desired voice of the synthesized audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams voice = 4;</code>
+     */
+    public Builder clearVoice() {
+      if (voiceBuilder_ == null) {
+        voice_ = null;
+        onChanged();
+      } else {
+        voice_ = null;
+        voiceBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The desired voice of the synthesized audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams voice = 4;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.Builder getVoiceBuilder() {
+
+      onChanged();
+      return getVoiceFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The desired voice of the synthesized audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams voice = 4;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParamsOrBuilder
+        getVoiceOrBuilder() {
+      if (voiceBuilder_ != null) {
+        return voiceBuilder_.getMessageOrBuilder();
+      } else {
+        return voice_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.getDefaultInstance()
+            : voice_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The desired voice of the synthesized audio.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams voice = 4;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams,
+            com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParamsOrBuilder>
+        getVoiceFieldBuilder() {
+      if (voiceBuilder_ == null) {
+        voiceBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams,
+                com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParamsOrBuilder>(
+                getVoice(), getParentForChildren(), isClean());
+        voice_ = null;
+      }
+      return voiceBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<SynthesizeSpeechConfig> PARSER =
+      new com.google.protobuf.AbstractParser<SynthesizeSpeechConfig>() {
+        @java.lang.Override
+        public SynthesizeSpeechConfig parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new SynthesizeSpeechConfig(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<SynthesizeSpeechConfig> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<SynthesizeSpeechConfig> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SynthesizeSpeechConfigOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SynthesizeSpeechConfigOrBuilder.java
new file mode 100644
index 000000000..8ab53a357
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SynthesizeSpeechConfigOrBuilder.java
@@ -0,0 +1,170 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/audio_config.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface SynthesizeSpeechConfigOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.SynthesizeSpeechConfig)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Optional. Speaking rate/speed, in the range [0.25, 4.0]. 1.0 is the normal
+   * native speed supported by the specific voice. 2.0 is twice as fast, and
+   * 0.5 is half as fast. If unset(0.0), defaults to the native 1.0 speed. Any
+   * other values &lt; 0.25 or &gt; 4.0 will return an error.
+   * </pre>
+   *
+   * <code>double speaking_rate = 1;</code>
+   *
+   * @return The speakingRate.
+   */
+  double getSpeakingRate();
+
+  /**
+   *
+   *
+   * <pre>
+   * Optional. Speaking pitch, in the range [-20.0, 20.0]. 20 means increase 20
+   * semitones from the original pitch. -20 means decrease 20 semitones from the
+   * original pitch.
+   * </pre>
+   *
+   * <code>double pitch = 2;</code>
+   *
+   * @return The pitch.
+   */
+  double getPitch();
+
+  /**
+   *
+   *
+   * <pre>
+   * Optional. Volume gain (in dB) of the normal native volume supported by the
+   * specific voice, in the range [-96.0, 16.0]. If unset, or set to a value of
+   * 0.0 (dB), will play at normal native signal amplitude. A value of -6.0 (dB)
+   * will play at approximately half the amplitude of the normal native signal
+   * amplitude. A value of +6.0 (dB) will play at approximately twice the
+   * amplitude of the normal native signal amplitude. We strongly recommend not
+   * to exceed +10 (dB) as there's usually no effective increase in loudness for
+   * any value greater than that.
+   * </pre>
+   *
+   * <code>double volume_gain_db = 3;</code>
+   *
+   * @return The volumeGainDb.
+   */
+  double getVolumeGainDb();
+
+  /**
+   *
+   *
+   * <pre>
+   * Optional. An identifier which selects 'audio effects' profiles that are
+   * applied on (post synthesized) text to speech. Effects are applied on top of
+   * each other in the order they are given.
+   * </pre>
+   *
+   * <code>repeated string effects_profile_id = 5;</code>
+   *
+   * @return A list containing the effectsProfileId.
+   */
+  java.util.List<java.lang.String> getEffectsProfileIdList();
+  /**
+   *
+   *
+   * <pre>
+   * Optional. An identifier which selects 'audio effects' profiles that are
+   * applied on (post synthesized) text to speech. Effects are applied on top of
+   * each other in the order they are given.
+   * </pre>
+   *
+   * <code>repeated string effects_profile_id = 5;</code>
+   *
+   * @return The count of effectsProfileId.
+   */
+  int getEffectsProfileIdCount();
+  /**
+   *
+   *
+   * <pre>
+   * Optional. An identifier which selects 'audio effects' profiles that are
+   * applied on (post synthesized) text to speech. Effects are applied on top of
+   * each other in the order they are given.
+   * </pre>
+   *
+   * <code>repeated string effects_profile_id = 5;</code>
+   *
+   * @param index The index of the element to return.
+   * @return The effectsProfileId at the given index.
+   */
+  java.lang.String getEffectsProfileId(int index);
+  /**
+   *
+   *
+   * <pre>
+   * Optional. An identifier which selects 'audio effects' profiles that are
+   * applied on (post synthesized) text to speech. Effects are applied on top of
+   * each other in the order they are given.
+   * </pre>
+   *
+   * <code>repeated string effects_profile_id = 5;</code>
+   *
+   * @param index The index of the value to return.
+   * @return The bytes of the effectsProfileId at the given index.
+   */
+  com.google.protobuf.ByteString getEffectsProfileIdBytes(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * Optional. The desired voice of the synthesized audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams voice = 4;</code>
+   *
+   * @return Whether the voice field is set.
+   */
+  boolean hasVoice();
+  /**
+   *
+   *
+   * <pre>
+   * Optional. The desired voice of the synthesized audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams voice = 4;</code>
+   *
+   * @return The voice.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams getVoice();
+  /**
+   *
+   *
+   * <pre>
+   * Optional. The desired voice of the synthesized audio.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams voice = 4;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParamsOrBuilder getVoiceOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TextInput.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TextInput.java
new file mode 100644
index 000000000..b009a8614
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TextInput.java
@@ -0,0 +1,642 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Represents the natural language text to be processed.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.TextInput}
+ */
+public final class TextInput extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.TextInput)
+    TextInputOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use TextInput.newBuilder() to construct.
+  private TextInput(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private TextInput() {
+    text_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new TextInput();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private TextInput(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              text_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_TextInput_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_TextInput_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.TextInput.class,
+            com.google.cloud.dialogflow.cx.v3beta1.TextInput.Builder.class);
+  }
+
+  public static final int TEXT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object text_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The UTF-8 encoded natural language text to be processed. Text length must
+   * not exceed 256 characters.
+   * </pre>
+   *
+   * <code>string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
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+  public java.lang.String getText() {
+    java.lang.Object ref = text_;
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+      java.lang.String s = bs.toStringUtf8();
+      text_ = s;
+      return s;
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+   *
+   *
+   * <pre>
+   * Required. The UTF-8 encoded natural language text to be processed. Text length must
+   * not exceed 256 characters.
+   * </pre>
+   *
+   * <code>string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for text.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getTextBytes() {
+    java.lang.Object ref = text_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      text_ = b;
+      return b;
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+      return (com.google.protobuf.ByteString) ref;
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+  }
+
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+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getTextBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, text_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getTextBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, text_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.TextInput)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.TextInput other =
+        (com.google.cloud.dialogflow.cx.v3beta1.TextInput) obj;
+
+    if (!getText().equals(other.getText())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + TEXT_FIELD_NUMBER;
+    hash = (53 * hash) + getText().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextInput parseFrom(java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextInput parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextInput parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextInput parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextInput parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextInput parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextInput parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextInput parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextInput parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextInput parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextInput parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextInput parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.cx.v3beta1.TextInput prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents the natural language text to be processed.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.TextInput}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.TextInput)
+      com.google.cloud.dialogflow.cx.v3beta1.TextInputOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_TextInput_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_TextInput_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.TextInput.class,
+              com.google.cloud.dialogflow.cx.v3beta1.TextInput.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.TextInput.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      text_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_TextInput_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.TextInput getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TextInput.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.TextInput build() {
+      com.google.cloud.dialogflow.cx.v3beta1.TextInput result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.TextInput buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.TextInput result =
+          new com.google.cloud.dialogflow.cx.v3beta1.TextInput(this);
+      result.text_ = text_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.TextInput) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.TextInput) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.TextInput other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.TextInput.getDefaultInstance())
+        return this;
+      if (!other.getText().isEmpty()) {
+        text_ = other.text_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.TextInput parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.dialogflow.cx.v3beta1.TextInput) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object text_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The UTF-8 encoded natural language text to be processed. Text length must
+     * not exceed 256 characters.
+     * </pre>
+     *
+     * <code>string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The text.
+     */
+    public java.lang.String getText() {
+      java.lang.Object ref = text_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        text_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The UTF-8 encoded natural language text to be processed. Text length must
+     * not exceed 256 characters.
+     * </pre>
+     *
+     * <code>string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for text.
+     */
+    public com.google.protobuf.ByteString getTextBytes() {
+      java.lang.Object ref = text_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        text_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The UTF-8 encoded natural language text to be processed. Text length must
+     * not exceed 256 characters.
+     * </pre>
+     *
+     * <code>string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The text to set.
+     * @return This builder for chaining.
+     */
+    public Builder setText(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      text_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The UTF-8 encoded natural language text to be processed. Text length must
+     * not exceed 256 characters.
+     * </pre>
+     *
+     * <code>string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearText() {
+
+      text_ = getDefaultInstance().getText();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The UTF-8 encoded natural language text to be processed. Text length must
+     * not exceed 256 characters.
+     * </pre>
+     *
+     * <code>string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The bytes for text to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTextBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      text_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.TextInput)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.TextInput)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.TextInput DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.TextInput();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TextInput getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<TextInput> PARSER =
+      new com.google.protobuf.AbstractParser<TextInput>() {
+        @java.lang.Override
+        public TextInput parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new TextInput(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<TextInput> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<TextInput> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.TextInput getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TextInputOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TextInputOrBuilder.java
new file mode 100644
index 000000000..7d37f79d6
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TextInputOrBuilder.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface TextInputOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.TextInput)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The UTF-8 encoded natural language text to be processed. Text length must
+   * not exceed 256 characters.
+   * </pre>
+   *
+   * <code>string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The text.
+   */
+  java.lang.String getText();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The UTF-8 encoded natural language text to be processed. Text length must
+   * not exceed 256 characters.
+   * </pre>
+   *
+   * <code>string text = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for text.
+   */
+  com.google.protobuf.ByteString getTextBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TrainFlowRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TrainFlowRequest.java
new file mode 100644
index 000000000..e66662a01
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TrainFlowRequest.java
@@ -0,0 +1,665 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/flow.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Flows.TrainFlow][google.cloud.dialogflow.cx.v3beta1.Flows.TrainFlow].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest}
+ */
+public final class TrainFlowRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest)
+    TrainFlowRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use TrainFlowRequest.newBuilder() to construct.
+  private TrainFlowRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private TrainFlowRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new TrainFlowRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private TrainFlowRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_TrainFlowRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_TrainFlowRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to train.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to train.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Flows.TrainFlow][google.cloud.dialogflow.cx.v3beta1.Flows.TrainFlow].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_TrainFlowRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_TrainFlowRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_TrainFlowRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to train.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to train.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to train.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to train.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to train.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<TrainFlowRequest> PARSER =
+      new com.google.protobuf.AbstractParser<TrainFlowRequest>() {
+        @java.lang.Override
+        public TrainFlowRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new TrainFlowRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<TrainFlowRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<TrainFlowRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TrainFlowRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TrainFlowRequestOrBuilder.java
new file mode 100644
index 000000000..76afcf07b
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TrainFlowRequestOrBuilder.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/flow.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface TrainFlowRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.TrainFlowRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to train.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to train.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRoute.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRoute.java
new file mode 100644
index 000000000..dd1ac09e8
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRoute.java
@@ -0,0 +1,1928 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/page.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * A transition route specifies a [intent][google.cloud.dialogflow.cx.v3beta1.Intent] that can be matched and/or a
+ * data condition that can be evaluated during a session. When a specified
+ * transition is matched, the following actions are taken in order:
+ * *   If there is a
+ * [`trigger_fulfillment`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.trigger_fulfillment] associated with
+ * the transition, it will be called.
+ * *   If there is a [`target_page`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.target_page] associated
+ * with the transition, the session will transition into the specified page.
+ * *   If there is a [`target_flow`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.target_flow] associated
+ * with the transition, the session will transition into the specified flow.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.TransitionRoute}
+ */
+public final class TransitionRoute extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.TransitionRoute)
+    TransitionRouteOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use TransitionRoute.newBuilder() to construct.
+  private TransitionRoute(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private TransitionRoute() {
+    name_ = "";
+    intent_ = "";
+    condition_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new TransitionRoute();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private TransitionRoute(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              intent_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              condition_ = s;
+              break;
+            }
+          case 26:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder subBuilder = null;
+              if (triggerFulfillment_ != null) {
+                subBuilder = triggerFulfillment_.toBuilder();
+              }
+              triggerFulfillment_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(triggerFulfillment_);
+                triggerFulfillment_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 34:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+              targetCase_ = 4;
+              target_ = s;
+              break;
+            }
+          case 42:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+              targetCase_ = 5;
+              target_ = s;
+              break;
+            }
+          case 50:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_TransitionRoute_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_TransitionRoute_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.class,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder.class);
+  }
+
+  private int targetCase_ = 0;
+  private java.lang.Object target_;
+
+  public enum TargetCase
+      implements
+          com.google.protobuf.Internal.EnumLite,
+          com.google.protobuf.AbstractMessage.InternalOneOfEnum {
+    TARGET_PAGE(4),
+    TARGET_FLOW(5),
+    TARGET_NOT_SET(0);
+    private final int value;
+
+    private TargetCase(int value) {
+      this.value = value;
+    }
+    /**
+     * @param value The number of the enum to look for.
+     * @return The enum associated with the given number.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static TargetCase valueOf(int value) {
+      return forNumber(value);
+    }
+
+    public static TargetCase forNumber(int value) {
+      switch (value) {
+        case 4:
+          return TARGET_PAGE;
+        case 5:
+          return TARGET_FLOW;
+        case 0:
+          return TARGET_NOT_SET;
+        default:
+          return null;
+      }
+    }
+
+    public int getNumber() {
+      return this.value;
+    }
+  };
+
+  public TargetCase getTargetCase() {
+    return TargetCase.forNumber(targetCase_);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 6;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The unique identifier of this transition route.
+   * </pre>
+   *
+   * <code>string name = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The unique identifier of this transition route.
+   * </pre>
+   *
+   * <code>string name = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int INTENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object intent_;
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of an [Intent][google.cloud.dialogflow.cx.v3beta1.Intent].
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/intents/&lt;Intent ID&gt;`.
+   * Indicates that the transition can only happen when the given intent is
+   * matched.
+   * At least one of `intent` or `condition` must be specified. When both
+   * `intent` and `condition` are specified, the transition can only happen
+   * when both are fulfilled.
+   * </pre>
+   *
+   * <code>string intent = 1 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The intent.
+   */
+  @java.lang.Override
+  public java.lang.String getIntent() {
+    java.lang.Object ref = intent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      intent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of an [Intent][google.cloud.dialogflow.cx.v3beta1.Intent].
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/intents/&lt;Intent ID&gt;`.
+   * Indicates that the transition can only happen when the given intent is
+   * matched.
+   * At least one of `intent` or `condition` must be specified. When both
+   * `intent` and `condition` are specified, the transition can only happen
+   * when both are fulfilled.
+   * </pre>
+   *
+   * <code>string intent = 1 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for intent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getIntentBytes() {
+    java.lang.Object ref = intent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      intent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int CONDITION_FIELD_NUMBER = 2;
+  private volatile java.lang.Object condition_;
+  /**
+   *
+   *
+   * <pre>
+   * The condition to evaluate against [form parameters][google.cloud.dialogflow.cx.v3beta1.Form.parameters] or
+   * [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+   * See the [conditions
+   * reference](https://cloud.google.com/dialogflow/cx/docs/reference/condition).
+   * At least one of `intent` or `condition` must be specified. When both
+   * `intent` and `condition` are specified, the transition can only happen
+   * when both are fulfilled.
+   * </pre>
+   *
+   * <code>string condition = 2;</code>
+   *
+   * @return The condition.
+   */
+  @java.lang.Override
+  public java.lang.String getCondition() {
+    java.lang.Object ref = condition_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      condition_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The condition to evaluate against [form parameters][google.cloud.dialogflow.cx.v3beta1.Form.parameters] or
+   * [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+   * See the [conditions
+   * reference](https://cloud.google.com/dialogflow/cx/docs/reference/condition).
+   * At least one of `intent` or `condition` must be specified. When both
+   * `intent` and `condition` are specified, the transition can only happen
+   * when both are fulfilled.
+   * </pre>
+   *
+   * <code>string condition = 2;</code>
+   *
+   * @return The bytes for condition.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getConditionBytes() {
+    java.lang.Object ref = condition_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      condition_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int TRIGGER_FULFILLMENT_FIELD_NUMBER = 3;
+  private com.google.cloud.dialogflow.cx.v3beta1.Fulfillment triggerFulfillment_;
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment to call when the condition is satisfied. At least one of
+   * `trigger_fulfillment` and `target` must be specified. When both are
+   * defined, `trigger_fulfillment` is executed first.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 3;</code>
+   *
+   * @return Whether the triggerFulfillment field is set.
+   */
+  @java.lang.Override
+  public boolean hasTriggerFulfillment() {
+    return triggerFulfillment_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment to call when the condition is satisfied. At least one of
+   * `trigger_fulfillment` and `target` must be specified. When both are
+   * defined, `trigger_fulfillment` is executed first.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 3;</code>
+   *
+   * @return The triggerFulfillment.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment getTriggerFulfillment() {
+    return triggerFulfillment_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.getDefaultInstance()
+        : triggerFulfillment_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment to call when the condition is satisfied. At least one of
+   * `trigger_fulfillment` and `target` must be specified. When both are
+   * defined, `trigger_fulfillment` is executed first.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 3;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder
+      getTriggerFulfillmentOrBuilder() {
+    return getTriggerFulfillment();
+  }
+
+  public static final int TARGET_PAGE_FIELD_NUMBER = 4;
+  /**
+   *
+   *
+   * <pre>
+   * The target page to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_page = 4 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The targetPage.
+   */
+  public java.lang.String getTargetPage() {
+    java.lang.Object ref = "";
+    if (targetCase_ == 4) {
+      ref = target_;
+    }
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      if (targetCase_ == 4) {
+        target_ = s;
+      }
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The target page to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_page = 4 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for targetPage.
+   */
+  public com.google.protobuf.ByteString getTargetPageBytes() {
+    java.lang.Object ref = "";
+    if (targetCase_ == 4) {
+      ref = target_;
+    }
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      if (targetCase_ == 4) {
+        target_ = b;
+      }
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int TARGET_FLOW_FIELD_NUMBER = 5;
+  /**
+   *
+   *
+   * <pre>
+   * The target flow to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_flow = 5 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The targetFlow.
+   */
+  public java.lang.String getTargetFlow() {
+    java.lang.Object ref = "";
+    if (targetCase_ == 5) {
+      ref = target_;
+    }
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      if (targetCase_ == 5) {
+        target_ = s;
+      }
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The target flow to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_flow = 5 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for targetFlow.
+   */
+  public com.google.protobuf.ByteString getTargetFlowBytes() {
+    java.lang.Object ref = "";
+    if (targetCase_ == 5) {
+      ref = target_;
+    }
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      if (targetCase_ == 5) {
+        target_ = b;
+      }
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getIntentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, intent_);
+    }
+    if (!getConditionBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, condition_);
+    }
+    if (triggerFulfillment_ != null) {
+      output.writeMessage(3, getTriggerFulfillment());
+    }
+    if (targetCase_ == 4) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 4, target_);
+    }
+    if (targetCase_ == 5) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 5, target_);
+    }
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 6, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getIntentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, intent_);
+    }
+    if (!getConditionBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, condition_);
+    }
+    if (triggerFulfillment_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getTriggerFulfillment());
+    }
+    if (targetCase_ == 4) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, target_);
+    }
+    if (targetCase_ == 5) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, target_);
+    }
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute other =
+        (com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!getIntent().equals(other.getIntent())) return false;
+    if (!getCondition().equals(other.getCondition())) return false;
+    if (hasTriggerFulfillment() != other.hasTriggerFulfillment()) return false;
+    if (hasTriggerFulfillment()) {
+      if (!getTriggerFulfillment().equals(other.getTriggerFulfillment())) return false;
+    }
+    if (!getTargetCase().equals(other.getTargetCase())) return false;
+    switch (targetCase_) {
+      case 4:
+        if (!getTargetPage().equals(other.getTargetPage())) return false;
+        break;
+      case 5:
+        if (!getTargetFlow().equals(other.getTargetFlow())) return false;
+        break;
+      case 0:
+      default:
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + INTENT_FIELD_NUMBER;
+    hash = (53 * hash) + getIntent().hashCode();
+    hash = (37 * hash) + CONDITION_FIELD_NUMBER;
+    hash = (53 * hash) + getCondition().hashCode();
+    if (hasTriggerFulfillment()) {
+      hash = (37 * hash) + TRIGGER_FULFILLMENT_FIELD_NUMBER;
+      hash = (53 * hash) + getTriggerFulfillment().hashCode();
+    }
+    switch (targetCase_) {
+      case 4:
+        hash = (37 * hash) + TARGET_PAGE_FIELD_NUMBER;
+        hash = (53 * hash) + getTargetPage().hashCode();
+        break;
+      case 5:
+        hash = (37 * hash) + TARGET_FLOW_FIELD_NUMBER;
+        hash = (53 * hash) + getTargetFlow().hashCode();
+        break;
+      case 0:
+      default:
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A transition route specifies a [intent][google.cloud.dialogflow.cx.v3beta1.Intent] that can be matched and/or a
+   * data condition that can be evaluated during a session. When a specified
+   * transition is matched, the following actions are taken in order:
+   * *   If there is a
+   * [`trigger_fulfillment`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.trigger_fulfillment] associated with
+   * the transition, it will be called.
+   * *   If there is a [`target_page`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.target_page] associated
+   * with the transition, the session will transition into the specified page.
+   * *   If there is a [`target_flow`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.target_flow] associated
+   * with the transition, the session will transition into the specified flow.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.TransitionRoute}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.TransitionRoute)
+      com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_TransitionRoute_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_TransitionRoute_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.class,
+              com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      intent_ = "";
+
+      condition_ = "";
+
+      if (triggerFulfillmentBuilder_ == null) {
+        triggerFulfillment_ = null;
+      } else {
+        triggerFulfillment_ = null;
+        triggerFulfillmentBuilder_ = null;
+      }
+      targetCase_ = 0;
+      target_ = null;
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_TransitionRoute_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute build() {
+      com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute result =
+          new com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute(this);
+      result.name_ = name_;
+      result.intent_ = intent_;
+      result.condition_ = condition_;
+      if (triggerFulfillmentBuilder_ == null) {
+        result.triggerFulfillment_ = triggerFulfillment_;
+      } else {
+        result.triggerFulfillment_ = triggerFulfillmentBuilder_.build();
+      }
+      if (targetCase_ == 4) {
+        result.target_ = target_;
+      }
+      if (targetCase_ == 5) {
+        result.target_ = target_;
+      }
+      result.targetCase_ = targetCase_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getIntent().isEmpty()) {
+        intent_ = other.intent_;
+        onChanged();
+      }
+      if (!other.getCondition().isEmpty()) {
+        condition_ = other.condition_;
+        onChanged();
+      }
+      if (other.hasTriggerFulfillment()) {
+        mergeTriggerFulfillment(other.getTriggerFulfillment());
+      }
+      switch (other.getTargetCase()) {
+        case TARGET_PAGE:
+          {
+            targetCase_ = 4;
+            target_ = other.target_;
+            onChanged();
+            break;
+          }
+        case TARGET_FLOW:
+          {
+            targetCase_ = 5;
+            target_ = other.target_;
+            onChanged();
+            break;
+          }
+        case TARGET_NOT_SET:
+          {
+            break;
+          }
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int targetCase_ = 0;
+    private java.lang.Object target_;
+
+    public TargetCase getTargetCase() {
+      return TargetCase.forNumber(targetCase_);
+    }
+
+    public Builder clearTarget() {
+      targetCase_ = 0;
+      target_ = null;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of this transition route.
+     * </pre>
+     *
+     * <code>string name = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of this transition route.
+     * </pre>
+     *
+     * <code>string name = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of this transition route.
+     * </pre>
+     *
+     * <code>string name = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of this transition route.
+     * </pre>
+     *
+     * <code>string name = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The unique identifier of this transition route.
+     * </pre>
+     *
+     * <code>string name = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object intent_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of an [Intent][google.cloud.dialogflow.cx.v3beta1.Intent].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * Indicates that the transition can only happen when the given intent is
+     * matched.
+     * At least one of `intent` or `condition` must be specified. When both
+     * `intent` and `condition` are specified, the transition can only happen
+     * when both are fulfilled.
+     * </pre>
+     *
+     * <code>string intent = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The intent.
+     */
+    public java.lang.String getIntent() {
+      java.lang.Object ref = intent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        intent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of an [Intent][google.cloud.dialogflow.cx.v3beta1.Intent].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * Indicates that the transition can only happen when the given intent is
+     * matched.
+     * At least one of `intent` or `condition` must be specified. When both
+     * `intent` and `condition` are specified, the transition can only happen
+     * when both are fulfilled.
+     * </pre>
+     *
+     * <code>string intent = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The bytes for intent.
+     */
+    public com.google.protobuf.ByteString getIntentBytes() {
+      java.lang.Object ref = intent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        intent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of an [Intent][google.cloud.dialogflow.cx.v3beta1.Intent].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * Indicates that the transition can only happen when the given intent is
+     * matched.
+     * At least one of `intent` or `condition` must be specified. When both
+     * `intent` and `condition` are specified, the transition can only happen
+     * when both are fulfilled.
+     * </pre>
+     *
+     * <code>string intent = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The intent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setIntent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      intent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of an [Intent][google.cloud.dialogflow.cx.v3beta1.Intent].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * Indicates that the transition can only happen when the given intent is
+     * matched.
+     * At least one of `intent` or `condition` must be specified. When both
+     * `intent` and `condition` are specified, the transition can only happen
+     * when both are fulfilled.
+     * </pre>
+     *
+     * <code>string intent = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearIntent() {
+
+      intent_ = getDefaultInstance().getIntent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of an [Intent][google.cloud.dialogflow.cx.v3beta1.Intent].
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/intents/&lt;Intent ID&gt;`.
+     * Indicates that the transition can only happen when the given intent is
+     * matched.
+     * At least one of `intent` or `condition` must be specified. When both
+     * `intent` and `condition` are specified, the transition can only happen
+     * when both are fulfilled.
+     * </pre>
+     *
+     * <code>string intent = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The bytes for intent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setIntentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      intent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object condition_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The condition to evaluate against [form parameters][google.cloud.dialogflow.cx.v3beta1.Form.parameters] or
+     * [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+     * See the [conditions
+     * reference](https://cloud.google.com/dialogflow/cx/docs/reference/condition).
+     * At least one of `intent` or `condition` must be specified. When both
+     * `intent` and `condition` are specified, the transition can only happen
+     * when both are fulfilled.
+     * </pre>
+     *
+     * <code>string condition = 2;</code>
+     *
+     * @return The condition.
+     */
+    public java.lang.String getCondition() {
+      java.lang.Object ref = condition_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        condition_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The condition to evaluate against [form parameters][google.cloud.dialogflow.cx.v3beta1.Form.parameters] or
+     * [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+     * See the [conditions
+     * reference](https://cloud.google.com/dialogflow/cx/docs/reference/condition).
+     * At least one of `intent` or `condition` must be specified. When both
+     * `intent` and `condition` are specified, the transition can only happen
+     * when both are fulfilled.
+     * </pre>
+     *
+     * <code>string condition = 2;</code>
+     *
+     * @return The bytes for condition.
+     */
+    public com.google.protobuf.ByteString getConditionBytes() {
+      java.lang.Object ref = condition_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        condition_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The condition to evaluate against [form parameters][google.cloud.dialogflow.cx.v3beta1.Form.parameters] or
+     * [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+     * See the [conditions
+     * reference](https://cloud.google.com/dialogflow/cx/docs/reference/condition).
+     * At least one of `intent` or `condition` must be specified. When both
+     * `intent` and `condition` are specified, the transition can only happen
+     * when both are fulfilled.
+     * </pre>
+     *
+     * <code>string condition = 2;</code>
+     *
+     * @param value The condition to set.
+     * @return This builder for chaining.
+     */
+    public Builder setCondition(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      condition_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The condition to evaluate against [form parameters][google.cloud.dialogflow.cx.v3beta1.Form.parameters] or
+     * [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+     * See the [conditions
+     * reference](https://cloud.google.com/dialogflow/cx/docs/reference/condition).
+     * At least one of `intent` or `condition` must be specified. When both
+     * `intent` and `condition` are specified, the transition can only happen
+     * when both are fulfilled.
+     * </pre>
+     *
+     * <code>string condition = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearCondition() {
+
+      condition_ = getDefaultInstance().getCondition();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The condition to evaluate against [form parameters][google.cloud.dialogflow.cx.v3beta1.Form.parameters] or
+     * [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+     * See the [conditions
+     * reference](https://cloud.google.com/dialogflow/cx/docs/reference/condition).
+     * At least one of `intent` or `condition` must be specified. When both
+     * `intent` and `condition` are specified, the transition can only happen
+     * when both are fulfilled.
+     * </pre>
+     *
+     * <code>string condition = 2;</code>
+     *
+     * @param value The bytes for condition to set.
+     * @return This builder for chaining.
+     */
+    public Builder setConditionBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      condition_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Fulfillment triggerFulfillment_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment,
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder>
+        triggerFulfillmentBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the condition is satisfied. At least one of
+     * `trigger_fulfillment` and `target` must be specified. When both are
+     * defined, `trigger_fulfillment` is executed first.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 3;</code>
+     *
+     * @return Whether the triggerFulfillment field is set.
+     */
+    public boolean hasTriggerFulfillment() {
+      return triggerFulfillmentBuilder_ != null || triggerFulfillment_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the condition is satisfied. At least one of
+     * `trigger_fulfillment` and `target` must be specified. When both are
+     * defined, `trigger_fulfillment` is executed first.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 3;</code>
+     *
+     * @return The triggerFulfillment.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment getTriggerFulfillment() {
+      if (triggerFulfillmentBuilder_ == null) {
+        return triggerFulfillment_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.getDefaultInstance()
+            : triggerFulfillment_;
+      } else {
+        return triggerFulfillmentBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the condition is satisfied. At least one of
+     * `trigger_fulfillment` and `target` must be specified. When both are
+     * defined, `trigger_fulfillment` is executed first.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 3;</code>
+     */
+    public Builder setTriggerFulfillment(com.google.cloud.dialogflow.cx.v3beta1.Fulfillment value) {
+      if (triggerFulfillmentBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        triggerFulfillment_ = value;
+        onChanged();
+      } else {
+        triggerFulfillmentBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the condition is satisfied. At least one of
+     * `trigger_fulfillment` and `target` must be specified. When both are
+     * defined, `trigger_fulfillment` is executed first.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 3;</code>
+     */
+    public Builder setTriggerFulfillment(
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder builderForValue) {
+      if (triggerFulfillmentBuilder_ == null) {
+        triggerFulfillment_ = builderForValue.build();
+        onChanged();
+      } else {
+        triggerFulfillmentBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the condition is satisfied. At least one of
+     * `trigger_fulfillment` and `target` must be specified. When both are
+     * defined, `trigger_fulfillment` is executed first.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 3;</code>
+     */
+    public Builder mergeTriggerFulfillment(
+        com.google.cloud.dialogflow.cx.v3beta1.Fulfillment value) {
+      if (triggerFulfillmentBuilder_ == null) {
+        if (triggerFulfillment_ != null) {
+          triggerFulfillment_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.newBuilder(triggerFulfillment_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          triggerFulfillment_ = value;
+        }
+        onChanged();
+      } else {
+        triggerFulfillmentBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the condition is satisfied. At least one of
+     * `trigger_fulfillment` and `target` must be specified. When both are
+     * defined, `trigger_fulfillment` is executed first.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 3;</code>
+     */
+    public Builder clearTriggerFulfillment() {
+      if (triggerFulfillmentBuilder_ == null) {
+        triggerFulfillment_ = null;
+        onChanged();
+      } else {
+        triggerFulfillment_ = null;
+        triggerFulfillmentBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the condition is satisfied. At least one of
+     * `trigger_fulfillment` and `target` must be specified. When both are
+     * defined, `trigger_fulfillment` is executed first.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 3;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder
+        getTriggerFulfillmentBuilder() {
+
+      onChanged();
+      return getTriggerFulfillmentFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the condition is satisfied. At least one of
+     * `trigger_fulfillment` and `target` must be specified. When both are
+     * defined, `trigger_fulfillment` is executed first.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 3;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder
+        getTriggerFulfillmentOrBuilder() {
+      if (triggerFulfillmentBuilder_ != null) {
+        return triggerFulfillmentBuilder_.getMessageOrBuilder();
+      } else {
+        return triggerFulfillment_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.getDefaultInstance()
+            : triggerFulfillment_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment to call when the condition is satisfied. At least one of
+     * `trigger_fulfillment` and `target` must be specified. When both are
+     * defined, `trigger_fulfillment` is executed first.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 3;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment,
+            com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder>
+        getTriggerFulfillmentFieldBuilder() {
+      if (triggerFulfillmentBuilder_ == null) {
+        triggerFulfillmentBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment,
+                com.google.cloud.dialogflow.cx.v3beta1.Fulfillment.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder>(
+                getTriggerFulfillment(), getParentForChildren(), isClean());
+        triggerFulfillment_ = null;
+      }
+      return triggerFulfillmentBuilder_;
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * The target page to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_page = 4 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The targetPage.
+     */
+    @java.lang.Override
+    public java.lang.String getTargetPage() {
+      java.lang.Object ref = "";
+      if (targetCase_ == 4) {
+        ref = target_;
+      }
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (targetCase_ == 4) {
+          target_ = s;
+        }
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target page to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_page = 4 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The bytes for targetPage.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getTargetPageBytes() {
+      java.lang.Object ref = "";
+      if (targetCase_ == 4) {
+        ref = target_;
+      }
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        if (targetCase_ == 4) {
+          target_ = b;
+        }
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target page to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_page = 4 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The targetPage to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTargetPage(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      targetCase_ = 4;
+      target_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target page to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_page = 4 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearTargetPage() {
+      if (targetCase_ == 4) {
+        targetCase_ = 0;
+        target_ = null;
+        onChanged();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target page to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_page = 4 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The bytes for targetPage to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTargetPageBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      targetCase_ = 4;
+      target_ = value;
+      onChanged();
+      return this;
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * The target flow to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_flow = 5 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The targetFlow.
+     */
+    @java.lang.Override
+    public java.lang.String getTargetFlow() {
+      java.lang.Object ref = "";
+      if (targetCase_ == 5) {
+        ref = target_;
+      }
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (targetCase_ == 5) {
+          target_ = s;
+        }
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target flow to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_flow = 5 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The bytes for targetFlow.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getTargetFlowBytes() {
+      java.lang.Object ref = "";
+      if (targetCase_ == 5) {
+        ref = target_;
+      }
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        if (targetCase_ == 5) {
+          target_ = b;
+        }
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target flow to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_flow = 5 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The targetFlow to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTargetFlow(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      targetCase_ = 5;
+      target_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target flow to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_flow = 5 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearTargetFlow() {
+      if (targetCase_ == 5) {
+        targetCase_ = 0;
+        target_ = null;
+        onChanged();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target flow to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_flow = 5 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The bytes for targetFlow to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTargetFlowBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      targetCase_ = 5;
+      target_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.TransitionRoute)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.TransitionRoute)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<TransitionRoute> PARSER =
+      new com.google.protobuf.AbstractParser<TransitionRoute>() {
+        @java.lang.Override
+        public TransitionRoute parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new TransitionRoute(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<TransitionRoute> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<TransitionRoute> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroup.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroup.java
new file mode 100644
index 000000000..4632823df
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroup.java
@@ -0,0 +1,1481 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * An TransitionRouteGroup represents a group of
+ * [`TransitionRoutes`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] to be used by a [Page][google.cloud.dialogflow.cx.v3beta1.Page].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup}
+ */
+public final class TransitionRouteGroup extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup)
+    TransitionRouteGroupOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use TransitionRouteGroup.newBuilder() to construct.
+  private TransitionRouteGroup(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private TransitionRouteGroup() {
+    name_ = "";
+    displayName_ = "";
+    transitionRoutes_ = java.util.Collections.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new TransitionRouteGroup();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private TransitionRouteGroup(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              displayName_ = s;
+              break;
+            }
+          case 42:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                transitionRoutes_ =
+                    new java.util.ArrayList<
+                        com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              transitionRoutes_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.parser(),
+                      extensionRegistry));
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        transitionRoutes_ = java.util.Collections.unmodifiableList(transitionRoutes_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_TransitionRouteGroup_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_TransitionRouteGroup_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.class,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the transition route group.
+   * [TransitionRouteGroups.CreateTransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.CreateTransitionRouteGroup] populates the name
+   * automatically.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the transition route group.
+   * [TransitionRouteGroups.CreateTransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.CreateTransitionRouteGroup] populates the name
+   * automatically.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int DISPLAY_NAME_FIELD_NUMBER = 2;
+  private volatile java.lang.Object displayName_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the transition route group, unique within
+   * the [Agent][google.cloud.dialogflow.cx.v3beta1.Agent]. The display name can be no longer than 30 characters.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The displayName.
+   */
+  @java.lang.Override
+  public java.lang.String getDisplayName() {
+    java.lang.Object ref = displayName_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      displayName_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the transition route group, unique within
+   * the [Agent][google.cloud.dialogflow.cx.v3beta1.Agent]. The display name can be no longer than 30 characters.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for displayName.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getDisplayNameBytes() {
+    java.lang.Object ref = displayName_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      displayName_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int TRANSITION_ROUTES_FIELD_NUMBER = 5;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute> transitionRoutes_;
+  /**
+   *
+   *
+   * <pre>
+   * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   * Duplicate transition routes (i.e. using the same
+   * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+   * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+   * transition route group scope.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute>
+      getTransitionRoutesList() {
+    return transitionRoutes_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   * Duplicate transition routes (i.e. using the same
+   * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+   * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+   * transition route group scope.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+   * </code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder>
+      getTransitionRoutesOrBuilderList() {
+    return transitionRoutes_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   * Duplicate transition routes (i.e. using the same
+   * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+   * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+   * transition route group scope.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+   * </code>
+   */
+  @java.lang.Override
+  public int getTransitionRoutesCount() {
+    return transitionRoutes_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   * Duplicate transition routes (i.e. using the same
+   * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+   * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+   * transition route group scope.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute getTransitionRoutes(int index) {
+    return transitionRoutes_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   * Duplicate transition routes (i.e. using the same
+   * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+   * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+   * transition route group scope.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder
+      getTransitionRoutesOrBuilder(int index) {
+    return transitionRoutes_.get(index);
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (!getDisplayNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, displayName_);
+    }
+    for (int i = 0; i < transitionRoutes_.size(); i++) {
+      output.writeMessage(5, transitionRoutes_.get(i));
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (!getDisplayNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, displayName_);
+    }
+    for (int i = 0; i < transitionRoutes_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, transitionRoutes_.get(i));
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup other =
+        (com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!getDisplayName().equals(other.getDisplayName())) return false;
+    if (!getTransitionRoutesList().equals(other.getTransitionRoutesList())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + DISPLAY_NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getDisplayName().hashCode();
+    if (getTransitionRoutesCount() > 0) {
+      hash = (37 * hash) + TRANSITION_ROUTES_FIELD_NUMBER;
+      hash = (53 * hash) + getTransitionRoutesList().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * An TransitionRouteGroup represents a group of
+   * [`TransitionRoutes`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] to be used by a [Page][google.cloud.dialogflow.cx.v3beta1.Page].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup)
+      com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_TransitionRouteGroup_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_TransitionRouteGroup_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.class,
+              com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getTransitionRoutesFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      displayName_ = "";
+
+      if (transitionRoutesBuilder_ == null) {
+        transitionRoutes_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        transitionRoutesBuilder_.clear();
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_TransitionRouteGroup_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup build() {
+      com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup result =
+          new com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup(this);
+      int from_bitField0_ = bitField0_;
+      result.name_ = name_;
+      result.displayName_ = displayName_;
+      if (transitionRoutesBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          transitionRoutes_ = java.util.Collections.unmodifiableList(transitionRoutes_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.transitionRoutes_ = transitionRoutes_;
+      } else {
+        result.transitionRoutes_ = transitionRoutesBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getDisplayName().isEmpty()) {
+        displayName_ = other.displayName_;
+        onChanged();
+      }
+      if (transitionRoutesBuilder_ == null) {
+        if (!other.transitionRoutes_.isEmpty()) {
+          if (transitionRoutes_.isEmpty()) {
+            transitionRoutes_ = other.transitionRoutes_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureTransitionRoutesIsMutable();
+            transitionRoutes_.addAll(other.transitionRoutes_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.transitionRoutes_.isEmpty()) {
+          if (transitionRoutesBuilder_.isEmpty()) {
+            transitionRoutesBuilder_.dispose();
+            transitionRoutesBuilder_ = null;
+            transitionRoutes_ = other.transitionRoutes_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            transitionRoutesBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getTransitionRoutesFieldBuilder()
+                    : null;
+          } else {
+            transitionRoutesBuilder_.addAllMessages(other.transitionRoutes_);
+          }
+        }
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the transition route group.
+     * [TransitionRouteGroups.CreateTransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.CreateTransitionRouteGroup] populates the name
+     * automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the transition route group.
+     * [TransitionRouteGroups.CreateTransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.CreateTransitionRouteGroup] populates the name
+     * automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the transition route group.
+     * [TransitionRouteGroups.CreateTransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.CreateTransitionRouteGroup] populates the name
+     * automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the transition route group.
+     * [TransitionRouteGroups.CreateTransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.CreateTransitionRouteGroup] populates the name
+     * automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the transition route group.
+     * [TransitionRouteGroups.CreateTransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.CreateTransitionRouteGroup] populates the name
+     * automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object displayName_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the transition route group, unique within
+     * the [Agent][google.cloud.dialogflow.cx.v3beta1.Agent]. The display name can be no longer than 30 characters.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The displayName.
+     */
+    public java.lang.String getDisplayName() {
+      java.lang.Object ref = displayName_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        displayName_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the transition route group, unique within
+     * the [Agent][google.cloud.dialogflow.cx.v3beta1.Agent]. The display name can be no longer than 30 characters.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for displayName.
+     */
+    public com.google.protobuf.ByteString getDisplayNameBytes() {
+      java.lang.Object ref = displayName_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        displayName_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the transition route group, unique within
+     * the [Agent][google.cloud.dialogflow.cx.v3beta1.Agent]. The display name can be no longer than 30 characters.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The displayName to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDisplayName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      displayName_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the transition route group, unique within
+     * the [Agent][google.cloud.dialogflow.cx.v3beta1.Agent]. The display name can be no longer than 30 characters.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearDisplayName() {
+
+      displayName_ = getDefaultInstance().getDisplayName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the transition route group, unique within
+     * the [Agent][google.cloud.dialogflow.cx.v3beta1.Agent]. The display name can be no longer than 30 characters.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The bytes for displayName to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDisplayNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      displayName_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute>
+        transitionRoutes_ = java.util.Collections.emptyList();
+
+    private void ensureTransitionRoutesIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        transitionRoutes_ =
+            new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute>(
+                transitionRoutes_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder>
+        transitionRoutesBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Duplicate transition routes (i.e. using the same
+     * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+     * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+     * transition route group scope.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute>
+        getTransitionRoutesList() {
+      if (transitionRoutesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(transitionRoutes_);
+      } else {
+        return transitionRoutesBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Duplicate transition routes (i.e. using the same
+     * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+     * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+     * transition route group scope.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+     * </code>
+     */
+    public int getTransitionRoutesCount() {
+      if (transitionRoutesBuilder_ == null) {
+        return transitionRoutes_.size();
+      } else {
+        return transitionRoutesBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Duplicate transition routes (i.e. using the same
+     * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+     * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+     * transition route group scope.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute getTransitionRoutes(int index) {
+      if (transitionRoutesBuilder_ == null) {
+        return transitionRoutes_.get(index);
+      } else {
+        return transitionRoutesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Duplicate transition routes (i.e. using the same
+     * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+     * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+     * transition route group scope.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+     * </code>
+     */
+    public Builder setTransitionRoutes(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute value) {
+      if (transitionRoutesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTransitionRoutesIsMutable();
+        transitionRoutes_.set(index, value);
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Duplicate transition routes (i.e. using the same
+     * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+     * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+     * transition route group scope.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+     * </code>
+     */
+    public Builder setTransitionRoutes(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder builderForValue) {
+      if (transitionRoutesBuilder_ == null) {
+        ensureTransitionRoutesIsMutable();
+        transitionRoutes_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Duplicate transition routes (i.e. using the same
+     * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+     * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+     * transition route group scope.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+     * </code>
+     */
+    public Builder addTransitionRoutes(
+        com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute value) {
+      if (transitionRoutesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTransitionRoutesIsMutable();
+        transitionRoutes_.add(value);
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Duplicate transition routes (i.e. using the same
+     * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+     * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+     * transition route group scope.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+     * </code>
+     */
+    public Builder addTransitionRoutes(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute value) {
+      if (transitionRoutesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTransitionRoutesIsMutable();
+        transitionRoutes_.add(index, value);
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Duplicate transition routes (i.e. using the same
+     * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+     * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+     * transition route group scope.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+     * </code>
+     */
+    public Builder addTransitionRoutes(
+        com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder builderForValue) {
+      if (transitionRoutesBuilder_ == null) {
+        ensureTransitionRoutesIsMutable();
+        transitionRoutes_.add(builderForValue.build());
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Duplicate transition routes (i.e. using the same
+     * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+     * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+     * transition route group scope.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+     * </code>
+     */
+    public Builder addTransitionRoutes(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder builderForValue) {
+      if (transitionRoutesBuilder_ == null) {
+        ensureTransitionRoutesIsMutable();
+        transitionRoutes_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Duplicate transition routes (i.e. using the same
+     * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+     * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+     * transition route group scope.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+     * </code>
+     */
+    public Builder addAllTransitionRoutes(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute>
+            values) {
+      if (transitionRoutesBuilder_ == null) {
+        ensureTransitionRoutesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, transitionRoutes_);
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Duplicate transition routes (i.e. using the same
+     * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+     * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+     * transition route group scope.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+     * </code>
+     */
+    public Builder clearTransitionRoutes() {
+      if (transitionRoutesBuilder_ == null) {
+        transitionRoutes_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Duplicate transition routes (i.e. using the same
+     * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+     * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+     * transition route group scope.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+     * </code>
+     */
+    public Builder removeTransitionRoutes(int index) {
+      if (transitionRoutesBuilder_ == null) {
+        ensureTransitionRoutesIsMutable();
+        transitionRoutes_.remove(index);
+        onChanged();
+      } else {
+        transitionRoutesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Duplicate transition routes (i.e. using the same
+     * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+     * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+     * transition route group scope.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder
+        getTransitionRoutesBuilder(int index) {
+      return getTransitionRoutesFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Duplicate transition routes (i.e. using the same
+     * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+     * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+     * transition route group scope.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder
+        getTransitionRoutesOrBuilder(int index) {
+      if (transitionRoutesBuilder_ == null) {
+        return transitionRoutes_.get(index);
+      } else {
+        return transitionRoutesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Duplicate transition routes (i.e. using the same
+     * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+     * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+     * transition route group scope.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+     * </code>
+     */
+    public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder>
+        getTransitionRoutesOrBuilderList() {
+      if (transitionRoutesBuilder_ != null) {
+        return transitionRoutesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(transitionRoutes_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Duplicate transition routes (i.e. using the same
+     * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+     * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+     * transition route group scope.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder
+        addTransitionRoutesBuilder() {
+      return getTransitionRoutesFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Duplicate transition routes (i.e. using the same
+     * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+     * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+     * transition route group scope.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder
+        addTransitionRoutesBuilder(int index) {
+      return getTransitionRoutesFieldBuilder()
+          .addBuilder(
+              index, com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+     * Duplicate transition routes (i.e. using the same
+     * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+     * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+     * transition route group scope.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+     * </code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder>
+        getTransitionRoutesBuilderList() {
+      return getTransitionRoutesFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder>
+        getTransitionRoutesFieldBuilder() {
+      if (transitionRoutesBuilder_ == null) {
+        transitionRoutesBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute,
+                com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder>(
+                transitionRoutes_,
+                ((bitField0_ & 0x00000001) != 0),
+                getParentForChildren(),
+                isClean());
+        transitionRoutes_ = null;
+      }
+      return transitionRoutesBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<TransitionRouteGroup> PARSER =
+      new com.google.protobuf.AbstractParser<TransitionRouteGroup>() {
+        @java.lang.Override
+        public TransitionRouteGroup parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new TransitionRouteGroup(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<TransitionRouteGroup> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<TransitionRouteGroup> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroupName.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroupName.java
new file mode 100644
index 000000000..cabac6911
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroupName.java
@@ -0,0 +1,277 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+/** AUTO-GENERATED DOCUMENTATION AND CLASS */
+@javax.annotation.Generated("by GAPIC protoc plugin")
+public class TransitionRouteGroupName implements ResourceName {
+
+  private static final PathTemplate PATH_TEMPLATE =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/agents/{agent}/flows/{flow}/transitionRouteGroups/{transition_route_group}");
+
+  private volatile Map<String, String> fieldValuesMap;
+
+  private final String project;
+  private final String location;
+  private final String agent;
+  private final String flow;
+  private final String transitionRouteGroup;
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public String getAgent() {
+    return agent;
+  }
+
+  public String getFlow() {
+    return flow;
+  }
+
+  public String getTransitionRouteGroup() {
+    return transitionRouteGroup;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  private TransitionRouteGroupName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    agent = Preconditions.checkNotNull(builder.getAgent());
+    flow = Preconditions.checkNotNull(builder.getFlow());
+    transitionRouteGroup = Preconditions.checkNotNull(builder.getTransitionRouteGroup());
+  }
+
+  public static TransitionRouteGroupName of(
+      String project, String location, String agent, String flow, String transitionRouteGroup) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setFlow(flow)
+        .setTransitionRouteGroup(transitionRouteGroup)
+        .build();
+  }
+
+  public static String format(
+      String project, String location, String agent, String flow, String transitionRouteGroup) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setFlow(flow)
+        .setTransitionRouteGroup(transitionRouteGroup)
+        .build()
+        .toString();
+  }
+
+  public static TransitionRouteGroupName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    Map<String, String> matchMap =
+        PATH_TEMPLATE.validatedMatch(
+            formattedString, "TransitionRouteGroupName.parse: formattedString not in valid format");
+    return of(
+        matchMap.get("project"),
+        matchMap.get("location"),
+        matchMap.get("agent"),
+        matchMap.get("flow"),
+        matchMap.get("transition_route_group"));
+  }
+
+  public static List<TransitionRouteGroupName> parseList(List<String> formattedStrings) {
+    List<TransitionRouteGroupName> list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List<String> toStringList(List<TransitionRouteGroupName> values) {
+    List<String> list = new ArrayList<String>(values.size());
+    for (TransitionRouteGroupName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PATH_TEMPLATE.matches(formattedString);
+  }
+
+  public Map<String, String> getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder<String, String> fieldMapBuilder = ImmutableMap.builder();
+          fieldMapBuilder.put("project", project);
+          fieldMapBuilder.put("location", location);
+          fieldMapBuilder.put("agent", agent);
+          fieldMapBuilder.put("flow", flow);
+          fieldMapBuilder.put("transitionRouteGroup", transitionRouteGroup);
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return PATH_TEMPLATE.instantiate(
+        "project",
+        project,
+        "location",
+        location,
+        "agent",
+        agent,
+        "flow",
+        flow,
+        "transition_route_group",
+        transitionRouteGroup);
+  }
+
+  /** Builder for TransitionRouteGroupName. */
+  public static class Builder {
+
+    private String project;
+    private String location;
+    private String agent;
+    private String flow;
+    private String transitionRouteGroup;
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getAgent() {
+      return agent;
+    }
+
+    public String getFlow() {
+      return flow;
+    }
+
+    public String getTransitionRouteGroup() {
+      return transitionRouteGroup;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public Builder setAgent(String agent) {
+      this.agent = agent;
+      return this;
+    }
+
+    public Builder setFlow(String flow) {
+      this.flow = flow;
+      return this;
+    }
+
+    public Builder setTransitionRouteGroup(String transitionRouteGroup) {
+      this.transitionRouteGroup = transitionRouteGroup;
+      return this;
+    }
+
+    private Builder() {}
+
+    private Builder(TransitionRouteGroupName transitionRouteGroupName) {
+      project = transitionRouteGroupName.project;
+      location = transitionRouteGroupName.location;
+      agent = transitionRouteGroupName.agent;
+      flow = transitionRouteGroupName.flow;
+      transitionRouteGroup = transitionRouteGroupName.transitionRouteGroup;
+    }
+
+    public TransitionRouteGroupName build() {
+      return new TransitionRouteGroupName(this);
+    }
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o instanceof TransitionRouteGroupName) {
+      TransitionRouteGroupName that = (TransitionRouteGroupName) o;
+      return (this.project.equals(that.project))
+          && (this.location.equals(that.location))
+          && (this.agent.equals(that.agent))
+          && (this.flow.equals(that.flow))
+          && (this.transitionRouteGroup.equals(that.transitionRouteGroup));
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= project.hashCode();
+    h *= 1000003;
+    h ^= location.hashCode();
+    h *= 1000003;
+    h ^= agent.hashCode();
+    h *= 1000003;
+    h ^= flow.hashCode();
+    h *= 1000003;
+    h ^= transitionRouteGroup.hashCode();
+    return h;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroupOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroupOrBuilder.java
new file mode 100644
index 000000000..dd0c0ab23
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroupOrBuilder.java
@@ -0,0 +1,163 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface TransitionRouteGroupOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the transition route group.
+   * [TransitionRouteGroups.CreateTransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.CreateTransitionRouteGroup] populates the name
+   * automatically.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the transition route group.
+   * [TransitionRouteGroups.CreateTransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.CreateTransitionRouteGroup] populates the name
+   * automatically.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;Transition Route Group ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the transition route group, unique within
+   * the [Agent][google.cloud.dialogflow.cx.v3beta1.Agent]. The display name can be no longer than 30 characters.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The displayName.
+   */
+  java.lang.String getDisplayName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the transition route group, unique within
+   * the [Agent][google.cloud.dialogflow.cx.v3beta1.Agent]. The display name can be no longer than 30 characters.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for displayName.
+   */
+  com.google.protobuf.ByteString getDisplayNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   * Duplicate transition routes (i.e. using the same
+   * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+   * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+   * transition route group scope.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+   * </code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute> getTransitionRoutesList();
+  /**
+   *
+   *
+   * <pre>
+   * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   * Duplicate transition routes (i.e. using the same
+   * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+   * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+   * transition route group scope.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute getTransitionRoutes(int index);
+  /**
+   *
+   *
+   * <pre>
+   * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   * Duplicate transition routes (i.e. using the same
+   * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+   * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+   * transition route group scope.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+   * </code>
+   */
+  int getTransitionRoutesCount();
+  /**
+   *
+   *
+   * <pre>
+   * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   * Duplicate transition routes (i.e. using the same
+   * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+   * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+   * transition route group scope.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+   * </code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder>
+      getTransitionRoutesOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+   * Duplicate transition routes (i.e. using the same
+   * [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+   * Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+   * transition route group scope.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.TransitionRoute transition_routes = 5;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder getTransitionRoutesOrBuilder(
+      int index);
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroupProto.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroupProto.java
new file mode 100644
index 000000000..9f2066395
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteGroupProto.java
@@ -0,0 +1,242 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public final class TransitionRouteGroupProto {
+  private TransitionRouteGroupProto() {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistryLite registry) {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions((com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_TransitionRouteGroup_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_TransitionRouteGroup_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListTransitionRouteGroupsRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListTransitionRouteGroupsRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListTransitionRouteGroupsResponse_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListTransitionRouteGroupsResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_GetTransitionRouteGroupRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_GetTransitionRouteGroupRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_CreateTransitionRouteGroupRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_CreateTransitionRouteGroupRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateTransitionRouteGroupRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateTransitionRouteGroupRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteTransitionRouteGroupRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteTransitionRouteGroupRequest_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
+    return descriptor;
+  }
+
+  private static com.google.protobuf.Descriptors.FileDescriptor descriptor;
+
+  static {
+    java.lang.String[] descriptorData = {
+      "\n?google/cloud/dialogflow/cx/v3beta1/tra"
+          + "nsition_route_group.proto\022\"google.cloud."
+          + "dialogflow.cx.v3beta1\032\034google/api/annota"
+          + "tions.proto\032\027google/api/client.proto\032\037go"
+          + "ogle/api/field_behavior.proto\032\031google/ap"
+          + "i/resource.proto\032-google/cloud/dialogflo"
+          + "w/cx/v3beta1/page.proto\032\033google/protobuf"
+          + "/empty.proto\032 google/protobuf/field_mask"
+          + ".proto\"\272\002\n\024TransitionRouteGroup\022\014\n\004name\030"
+          + "\001 \001(\t\022\031\n\014display_name\030\002 \001(\tB\003\340A\002\022N\n\021tran"
+          + "sition_routes\030\005 \003(\01323.google.cloud.dialo"
+          + "gflow.cx.v3beta1.TransitionRoute:\250\001\352A\244\001\n"
+          + ".dialogflow.googleapis.com/TransitionRou"
+          + "teGroup\022rprojects/{project}/locations/{l"
+          + "ocation}/agents/{agent}/flows/{flow}/tra"
+          + "nsitionRouteGroups/{transition_route_gro"
+          + "up}\"\250\001\n ListTransitionRouteGroupsRequest"
+          + "\022F\n\006parent\030\001 \001(\tB6\340A\002\372A0\022.dialogflow.goo"
+          + "gleapis.com/TransitionRouteGroup\022\021\n\tpage"
+          + "_size\030\002 \001(\005\022\022\n\npage_token\030\003 \001(\t\022\025\n\rlangu"
+          + "age_code\030\004 \001(\t\"\227\001\n!ListTransitionRouteGr"
+          + "oupsResponse\022Y\n\027transition_route_groups\030"
+          + "\001 \003(\01328.google.cloud.dialogflow.cx.v3bet"
+          + "a1.TransitionRouteGroup\022\027\n\017next_page_tok"
+          + "en\030\002 \001(\t\"}\n\036GetTransitionRouteGroupReque"
+          + "st\022D\n\004name\030\001 \001(\tB6\340A\002\372A0\n.dialogflow.goo"
+          + "gleapis.com/TransitionRouteGroup\022\025\n\rlang"
+          + "uage_code\030\002 \001(\t\"\341\001\n!CreateTransitionRout"
+          + "eGroupRequest\022F\n\006parent\030\001 \001(\tB6\340A\002\372A0\022.d"
+          + "ialogflow.googleapis.com/TransitionRoute"
+          + "Group\022]\n\026transition_route_group\030\002 \001(\01328."
+          + "google.cloud.dialogflow.cx.v3beta1.Trans"
+          + "itionRouteGroupB\003\340A\002\022\025\n\rlanguage_code\030\003 "
+          + "\001(\t\"\312\001\n!UpdateTransitionRouteGroupReques"
+          + "t\022]\n\026transition_route_group\030\001 \001(\01328.goog"
+          + "le.cloud.dialogflow.cx.v3beta1.Transitio"
+          + "nRouteGroupB\003\340A\002\022/\n\013update_mask\030\002 \001(\0132\032."
+          + "google.protobuf.FieldMask\022\025\n\rlanguage_co"
+          + "de\030\003 \001(\t\"x\n!DeleteTransitionRouteGroupRe"
+          + "quest\022D\n\004name\030\001 \001(\tB6\340A\002\372A0\n.dialogflow."
+          + "googleapis.com/TransitionRouteGroup\022\r\n\005f"
+          + "orce\030\002 \001(\0102\367\013\n\025TransitionRouteGroups\022\212\002\n"
+          + "\031ListTransitionRouteGroups\022D.google.clou"
+          + "d.dialogflow.cx.v3beta1.ListTransitionRo"
+          + "uteGroupsRequest\032E.google.cloud.dialogfl"
+          + "ow.cx.v3beta1.ListTransitionRouteGroupsR"
+          + "esponse\"`\202\323\344\223\002Q\022O/v3beta1/{parent=projec"
+          + "ts/*/locations/*/agents/*/flows/*}/trans"
+          + "itionRouteGroups\332A\006parent\022\367\001\n\027GetTransit"
+          + "ionRouteGroup\022B.google.cloud.dialogflow."
+          + "cx.v3beta1.GetTransitionRouteGroupReques"
+          + "t\0328.google.cloud.dialogflow.cx.v3beta1.T"
+          + "ransitionRouteGroup\"^\202\323\344\223\002Q\022O/v3beta1/{n"
+          + "ame=projects/*/locations/*/agents/*/flow"
+          + "s/*/transitionRouteGroups/*}\332A\004name\022\257\002\n\032"
+          + "CreateTransitionRouteGroup\022E.google.clou"
+          + "d.dialogflow.cx.v3beta1.CreateTransition"
+          + "RouteGroupRequest\0328.google.cloud.dialogf"
+          + "low.cx.v3beta1.TransitionRouteGroup\"\217\001\202\323"
+          + "\344\223\002i\"O/v3beta1/{parent=projects/*/locati"
+          + "ons/*/agents/*/flows/*}/transitionRouteG"
+          + "roups:\026transition_route_group\332A\035parent,t"
+          + "ransition_route_group\022\314\002\n\032UpdateTransiti"
+          + "onRouteGroup\022E.google.cloud.dialogflow.c"
+          + "x.v3beta1.UpdateTransitionRouteGroupRequ"
+          + "est\0328.google.cloud.dialogflow.cx.v3beta1"
+          + ".TransitionRouteGroup\"\254\001\202\323\344\223\002\200\0012f/v3beta"
+          + "1/{transition_route_group.name=projects/"
+          + "*/locations/*/agents/*/flows/*/transitio"
+          + "nRouteGroups/*}:\026transition_route_group\332"
+          + "A\"transition_route_group,update_mask\022\333\001\n"
+          + "\032DeleteTransitionRouteGroup\022E.google.clo"
+          + "ud.dialogflow.cx.v3beta1.DeleteTransitio"
+          + "nRouteGroupRequest\032\026.google.protobuf.Emp"
+          + "ty\"^\202\323\344\223\002Q*O/v3beta1/{name=projects/*/lo"
+          + "cations/*/agents/*/flows/*/transitionRou"
+          + "teGroups/*}\332A\004name\032x\312A\031dialogflow.google"
+          + "apis.com\322AYhttps://www.googleapis.com/au"
+          + "th/cloud-platform,https://www.googleapis"
+          + ".com/auth/dialogflowB\270\001\n&com.google.clou"
+          + "d.dialogflow.cx.v3beta1B\031TransitionRoute"
+          + "GroupProtoP\001ZDgoogle.golang.org/genproto"
+          + "/googleapis/cloud/dialogflow/cx/v3beta1;"
+          + "cx\370\001\001\242\002\002DF\252\002\"Google.Cloud.Dialogflow.Cx."
+          + "V3Beta1b\006proto3"
+    };
+    descriptor =
+        com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
+            descriptorData,
+            new com.google.protobuf.Descriptors.FileDescriptor[] {
+              com.google.api.AnnotationsProto.getDescriptor(),
+              com.google.api.ClientProto.getDescriptor(),
+              com.google.api.FieldBehaviorProto.getDescriptor(),
+              com.google.api.ResourceProto.getDescriptor(),
+              com.google.cloud.dialogflow.cx.v3beta1.PageProto.getDescriptor(),
+              com.google.protobuf.EmptyProto.getDescriptor(),
+              com.google.protobuf.FieldMaskProto.getDescriptor(),
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_TransitionRouteGroup_descriptor =
+        getDescriptor().getMessageTypes().get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_TransitionRouteGroup_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_TransitionRouteGroup_descriptor,
+            new java.lang.String[] {
+              "Name", "DisplayName", "TransitionRoutes",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListTransitionRouteGroupsRequest_descriptor =
+        getDescriptor().getMessageTypes().get(1);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListTransitionRouteGroupsRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ListTransitionRouteGroupsRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "PageSize", "PageToken", "LanguageCode",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListTransitionRouteGroupsResponse_descriptor =
+        getDescriptor().getMessageTypes().get(2);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListTransitionRouteGroupsResponse_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ListTransitionRouteGroupsResponse_descriptor,
+            new java.lang.String[] {
+              "TransitionRouteGroups", "NextPageToken",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_GetTransitionRouteGroupRequest_descriptor =
+        getDescriptor().getMessageTypes().get(3);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_GetTransitionRouteGroupRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_GetTransitionRouteGroupRequest_descriptor,
+            new java.lang.String[] {
+              "Name", "LanguageCode",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_CreateTransitionRouteGroupRequest_descriptor =
+        getDescriptor().getMessageTypes().get(4);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_CreateTransitionRouteGroupRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_CreateTransitionRouteGroupRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "TransitionRouteGroup", "LanguageCode",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateTransitionRouteGroupRequest_descriptor =
+        getDescriptor().getMessageTypes().get(5);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateTransitionRouteGroupRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateTransitionRouteGroupRequest_descriptor,
+            new java.lang.String[] {
+              "TransitionRouteGroup", "UpdateMask", "LanguageCode",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteTransitionRouteGroupRequest_descriptor =
+        getDescriptor().getMessageTypes().get(6);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteTransitionRouteGroupRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteTransitionRouteGroupRequest_descriptor,
+            new java.lang.String[] {
+              "Name", "Force",
+            });
+    com.google.protobuf.ExtensionRegistry registry =
+        com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.ClientProto.defaultHost);
+    registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
+    registry.add(com.google.api.AnnotationsProto.http);
+    registry.add(com.google.api.ClientProto.methodSignature);
+    registry.add(com.google.api.ClientProto.oauthScopes);
+    registry.add(com.google.api.ResourceProto.resource);
+    registry.add(com.google.api.ResourceProto.resourceReference);
+    com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
+        descriptor, registry);
+    com.google.api.AnnotationsProto.getDescriptor();
+    com.google.api.ClientProto.getDescriptor();
+    com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.api.ResourceProto.getDescriptor();
+    com.google.cloud.dialogflow.cx.v3beta1.PageProto.getDescriptor();
+    com.google.protobuf.EmptyProto.getDescriptor();
+    com.google.protobuf.FieldMaskProto.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteOrBuilder.java
new file mode 100644
index 000000000..cb0c51c47
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/TransitionRouteOrBuilder.java
@@ -0,0 +1,227 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/page.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface TransitionRouteOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.TransitionRoute)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The unique identifier of this transition route.
+   * </pre>
+   *
+   * <code>string name = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The unique identifier of this transition route.
+   * </pre>
+   *
+   * <code>string name = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of an [Intent][google.cloud.dialogflow.cx.v3beta1.Intent].
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/intents/&lt;Intent ID&gt;`.
+   * Indicates that the transition can only happen when the given intent is
+   * matched.
+   * At least one of `intent` or `condition` must be specified. When both
+   * `intent` and `condition` are specified, the transition can only happen
+   * when both are fulfilled.
+   * </pre>
+   *
+   * <code>string intent = 1 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The intent.
+   */
+  java.lang.String getIntent();
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of an [Intent][google.cloud.dialogflow.cx.v3beta1.Intent].
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/intents/&lt;Intent ID&gt;`.
+   * Indicates that the transition can only happen when the given intent is
+   * matched.
+   * At least one of `intent` or `condition` must be specified. When both
+   * `intent` and `condition` are specified, the transition can only happen
+   * when both are fulfilled.
+   * </pre>
+   *
+   * <code>string intent = 1 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for intent.
+   */
+  com.google.protobuf.ByteString getIntentBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The condition to evaluate against [form parameters][google.cloud.dialogflow.cx.v3beta1.Form.parameters] or
+   * [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+   * See the [conditions
+   * reference](https://cloud.google.com/dialogflow/cx/docs/reference/condition).
+   * At least one of `intent` or `condition` must be specified. When both
+   * `intent` and `condition` are specified, the transition can only happen
+   * when both are fulfilled.
+   * </pre>
+   *
+   * <code>string condition = 2;</code>
+   *
+   * @return The condition.
+   */
+  java.lang.String getCondition();
+  /**
+   *
+   *
+   * <pre>
+   * The condition to evaluate against [form parameters][google.cloud.dialogflow.cx.v3beta1.Form.parameters] or
+   * [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+   * See the [conditions
+   * reference](https://cloud.google.com/dialogflow/cx/docs/reference/condition).
+   * At least one of `intent` or `condition` must be specified. When both
+   * `intent` and `condition` are specified, the transition can only happen
+   * when both are fulfilled.
+   * </pre>
+   *
+   * <code>string condition = 2;</code>
+   *
+   * @return The bytes for condition.
+   */
+  com.google.protobuf.ByteString getConditionBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment to call when the condition is satisfied. At least one of
+   * `trigger_fulfillment` and `target` must be specified. When both are
+   * defined, `trigger_fulfillment` is executed first.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 3;</code>
+   *
+   * @return Whether the triggerFulfillment field is set.
+   */
+  boolean hasTriggerFulfillment();
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment to call when the condition is satisfied. At least one of
+   * `trigger_fulfillment` and `target` must be specified. When both are
+   * defined, `trigger_fulfillment` is executed first.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 3;</code>
+   *
+   * @return The triggerFulfillment.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Fulfillment getTriggerFulfillment();
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment to call when the condition is satisfied. At least one of
+   * `trigger_fulfillment` and `target` must be specified. When both are
+   * defined, `trigger_fulfillment` is executed first.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Fulfillment trigger_fulfillment = 3;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.FulfillmentOrBuilder getTriggerFulfillmentOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The target page to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_page = 4 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The targetPage.
+   */
+  java.lang.String getTargetPage();
+  /**
+   *
+   *
+   * <pre>
+   * The target page to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_page = 4 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for targetPage.
+   */
+  com.google.protobuf.ByteString getTargetPageBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The target flow to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_flow = 5 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The targetFlow.
+   */
+  java.lang.String getTargetFlow();
+  /**
+   *
+   *
+   * <pre>
+   * The target flow to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_flow = 5 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for targetFlow.
+   */
+  com.google.protobuf.ByteString getTargetFlowBytes();
+
+  public com.google.cloud.dialogflow.cx.v3beta1.TransitionRoute.TargetCase getTargetCase();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateAgentRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateAgentRequest.java
new file mode 100644
index 000000000..fae08853f
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateAgentRequest.java
@@ -0,0 +1,1042 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest}
+ */
+public final class UpdateAgentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest)
+    UpdateAgentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use UpdateAgentRequest.newBuilder() to construct.
+  private UpdateAgentRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private UpdateAgentRequest() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new UpdateAgentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private UpdateAgentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder subBuilder = null;
+              if (agent_ != null) {
+                subBuilder = agent_.toBuilder();
+              }
+              agent_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Agent.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(agent_);
+                agent_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 18:
+            {
+              com.google.protobuf.FieldMask.Builder subBuilder = null;
+              if (updateMask_ != null) {
+                subBuilder = updateMask_.toBuilder();
+              }
+              updateMask_ =
+                  input.readMessage(com.google.protobuf.FieldMask.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(updateMask_);
+                updateMask_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateAgentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateAgentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest.Builder.class);
+  }
+
+  public static final int AGENT_FIELD_NUMBER = 1;
+  private com.google.cloud.dialogflow.cx.v3beta1.Agent agent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the agent field is set.
+   */
+  @java.lang.Override
+  public boolean hasAgent() {
+    return agent_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The agent.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Agent getAgent() {
+    return agent_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.Agent.getDefaultInstance()
+        : agent_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.AgentOrBuilder getAgentOrBuilder() {
+    return getAgent();
+  }
+
+  public static final int UPDATE_MASK_FIELD_NUMBER = 2;
+  private com.google.protobuf.FieldMask updateMask_;
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   *
+   * @return Whether the updateMask field is set.
+   */
+  @java.lang.Override
+  public boolean hasUpdateMask() {
+    return updateMask_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   *
+   * @return The updateMask.
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMask getUpdateMask() {
+    return updateMask_ == null ? com.google.protobuf.FieldMask.getDefaultInstance() : updateMask_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+    return getUpdateMask();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (agent_ != null) {
+      output.writeMessage(1, getAgent());
+    }
+    if (updateMask_ != null) {
+      output.writeMessage(2, getUpdateMask());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (agent_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getAgent());
+    }
+    if (updateMask_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getUpdateMask());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest) obj;
+
+    if (hasAgent() != other.hasAgent()) return false;
+    if (hasAgent()) {
+      if (!getAgent().equals(other.getAgent())) return false;
+    }
+    if (hasUpdateMask() != other.hasUpdateMask()) return false;
+    if (hasUpdateMask()) {
+      if (!getUpdateMask().equals(other.getUpdateMask())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasAgent()) {
+      hash = (37 * hash) + AGENT_FIELD_NUMBER;
+      hash = (53 * hash) + getAgent().hashCode();
+    }
+    if (hasUpdateMask()) {
+      hash = (37 * hash) + UPDATE_MASK_FIELD_NUMBER;
+      hash = (53 * hash) + getUpdateMask().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateAgentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateAgentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (agentBuilder_ == null) {
+        agent_ = null;
+      } else {
+        agent_ = null;
+        agentBuilder_ = null;
+      }
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AgentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateAgentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest(this);
+      if (agentBuilder_ == null) {
+        result.agent_ = agent_;
+      } else {
+        result.agent_ = agentBuilder_.build();
+      }
+      if (updateMaskBuilder_ == null) {
+        result.updateMask_ = updateMask_;
+      } else {
+        result.updateMask_ = updateMaskBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest.getDefaultInstance())
+        return this;
+      if (other.hasAgent()) {
+        mergeAgent(other.getAgent());
+      }
+      if (other.hasUpdateMask()) {
+        mergeUpdateMask(other.getUpdateMask());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Agent agent_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Agent,
+            com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.AgentOrBuilder>
+        agentBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the agent field is set.
+     */
+    public boolean hasAgent() {
+      return agentBuilder_ != null || agent_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The agent.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Agent getAgent() {
+      if (agentBuilder_ == null) {
+        return agent_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Agent.getDefaultInstance()
+            : agent_;
+      } else {
+        return agentBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setAgent(com.google.cloud.dialogflow.cx.v3beta1.Agent value) {
+      if (agentBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        agent_ = value;
+        onChanged();
+      } else {
+        agentBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setAgent(com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder builderForValue) {
+      if (agentBuilder_ == null) {
+        agent_ = builderForValue.build();
+        onChanged();
+      } else {
+        agentBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeAgent(com.google.cloud.dialogflow.cx.v3beta1.Agent value) {
+      if (agentBuilder_ == null) {
+        if (agent_ != null) {
+          agent_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Agent.newBuilder(agent_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          agent_ = value;
+        }
+        onChanged();
+      } else {
+        agentBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearAgent() {
+      if (agentBuilder_ == null) {
+        agent_ = null;
+        onChanged();
+      } else {
+        agent_ = null;
+        agentBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder getAgentBuilder() {
+
+      onChanged();
+      return getAgentFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.AgentOrBuilder getAgentOrBuilder() {
+      if (agentBuilder_ != null) {
+        return agentBuilder_.getMessageOrBuilder();
+      } else {
+        return agent_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Agent.getDefaultInstance()
+            : agent_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The agent to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Agent,
+            com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.AgentOrBuilder>
+        getAgentFieldBuilder() {
+      if (agentBuilder_ == null) {
+        agentBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Agent,
+                com.google.cloud.dialogflow.cx.v3beta1.Agent.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.AgentOrBuilder>(
+                getAgent(), getParentForChildren(), isClean());
+        agent_ = null;
+      }
+      return agentBuilder_;
+    }
+
+    private com.google.protobuf.FieldMask updateMask_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        updateMaskBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     *
+     * @return Whether the updateMask field is set.
+     */
+    public boolean hasUpdateMask() {
+      return updateMaskBuilder_ != null || updateMask_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     *
+     * @return The updateMask.
+     */
+    public com.google.protobuf.FieldMask getUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      } else {
+        return updateMaskBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        updateMask_ = value;
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask.Builder builderForValue) {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = builderForValue.build();
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public Builder mergeUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (updateMask_ != null) {
+          updateMask_ =
+              com.google.protobuf.FieldMask.newBuilder(updateMask_).mergeFrom(value).buildPartial();
+        } else {
+          updateMask_ = value;
+        }
+        onChanged();
+      } else {
+        updateMaskBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public Builder clearUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+        onChanged();
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public com.google.protobuf.FieldMask.Builder getUpdateMaskBuilder() {
+
+      onChanged();
+      return getUpdateMaskFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+      if (updateMaskBuilder_ != null) {
+        return updateMaskBuilder_.getMessageOrBuilder();
+      } else {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        getUpdateMaskFieldBuilder() {
+      if (updateMaskBuilder_ == null) {
+        updateMaskBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.FieldMask,
+                com.google.protobuf.FieldMask.Builder,
+                com.google.protobuf.FieldMaskOrBuilder>(
+                getUpdateMask(), getParentForChildren(), isClean());
+        updateMask_ = null;
+      }
+      return updateMaskBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<UpdateAgentRequest> PARSER =
+      new com.google.protobuf.AbstractParser<UpdateAgentRequest>() {
+        @java.lang.Override
+        public UpdateAgentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new UpdateAgentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<UpdateAgentRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<UpdateAgentRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateAgentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateAgentRequestOrBuilder.java
new file mode 100644
index 000000000..f591289eb
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateAgentRequestOrBuilder.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/agent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface UpdateAgentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.UpdateAgentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the agent field is set.
+   */
+  boolean hasAgent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The agent.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Agent getAgent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The agent to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Agent agent = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.AgentOrBuilder getAgentOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   *
+   * @return Whether the updateMask field is set.
+   */
+  boolean hasUpdateMask();
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   *
+   * @return The updateMask.
+   */
+  com.google.protobuf.FieldMask getUpdateMask();
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   */
+  com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateEntityTypeRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateEntityTypeRequest.java
new file mode 100644
index 000000000..ff393d694
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateEntityTypeRequest.java
@@ -0,0 +1,1274 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [EntityTypes.UpdateEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.UpdateEntityType].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest}
+ */
+public final class UpdateEntityTypeRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest)
+    UpdateEntityTypeRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use UpdateEntityTypeRequest.newBuilder() to construct.
+  private UpdateEntityTypeRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private UpdateEntityTypeRequest() {
+    languageCode_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new UpdateEntityTypeRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private UpdateEntityTypeRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder subBuilder = null;
+              if (entityType_ != null) {
+                subBuilder = entityType_.toBuilder();
+              }
+              entityType_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.EntityType.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(entityType_);
+                entityType_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              languageCode_ = s;
+              break;
+            }
+          case 26:
+            {
+              com.google.protobuf.FieldMask.Builder subBuilder = null;
+              if (updateMask_ != null) {
+                subBuilder = updateMask_.toBuilder();
+              }
+              updateMask_ =
+                  input.readMessage(com.google.protobuf.FieldMask.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(updateMask_);
+                updateMask_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateEntityTypeRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateEntityTypeRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest.Builder.class);
+  }
+
+  public static final int ENTITY_TYPE_FIELD_NUMBER = 1;
+  private com.google.cloud.dialogflow.cx.v3beta1.EntityType entityType_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The entity type to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the entityType field is set.
+   */
+  @java.lang.Override
+  public boolean hasEntityType() {
+    return entityType_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The entity type to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The entityType.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.EntityType getEntityType() {
+    return entityType_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.EntityType.getDefaultInstance()
+        : entityType_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The entity type to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder getEntityTypeOrBuilder() {
+    return getEntityType();
+  }
+
+  public static final int LANGUAGE_CODE_FIELD_NUMBER = 2;
+  private volatile java.lang.Object languageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `entity_type`:
+   * *   `EntityType.entities.value`
+   * *   `EntityType.entities.synonyms`
+   * *   `EntityType.excluded_phrases.value`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The languageCode.
+   */
+  @java.lang.Override
+  public java.lang.String getLanguageCode() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      languageCode_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `entity_type`:
+   * *   `EntityType.entities.value`
+   * *   `EntityType.entities.synonyms`
+   * *   `EntityType.excluded_phrases.value`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getLanguageCodeBytes() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      languageCode_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int UPDATE_MASK_FIELD_NUMBER = 3;
+  private com.google.protobuf.FieldMask updateMask_;
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+   *
+   * @return Whether the updateMask field is set.
+   */
+  @java.lang.Override
+  public boolean hasUpdateMask() {
+    return updateMask_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+   *
+   * @return The updateMask.
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMask getUpdateMask() {
+    return updateMask_ == null ? com.google.protobuf.FieldMask.getDefaultInstance() : updateMask_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+    return getUpdateMask();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (entityType_ != null) {
+      output.writeMessage(1, getEntityType());
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, languageCode_);
+    }
+    if (updateMask_ != null) {
+      output.writeMessage(3, getUpdateMask());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (entityType_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getEntityType());
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, languageCode_);
+    }
+    if (updateMask_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getUpdateMask());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest) obj;
+
+    if (hasEntityType() != other.hasEntityType()) return false;
+    if (hasEntityType()) {
+      if (!getEntityType().equals(other.getEntityType())) return false;
+    }
+    if (!getLanguageCode().equals(other.getLanguageCode())) return false;
+    if (hasUpdateMask() != other.hasUpdateMask()) return false;
+    if (hasUpdateMask()) {
+      if (!getUpdateMask().equals(other.getUpdateMask())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasEntityType()) {
+      hash = (37 * hash) + ENTITY_TYPE_FIELD_NUMBER;
+      hash = (53 * hash) + getEntityType().hashCode();
+    }
+    hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
+    hash = (53 * hash) + getLanguageCode().hashCode();
+    if (hasUpdateMask()) {
+      hash = (37 * hash) + UPDATE_MASK_FIELD_NUMBER;
+      hash = (53 * hash) + getUpdateMask().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [EntityTypes.UpdateEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.UpdateEntityType].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateEntityTypeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateEntityTypeRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (entityTypeBuilder_ == null) {
+        entityType_ = null;
+      } else {
+        entityType_ = null;
+        entityTypeBuilder_ = null;
+      }
+      languageCode_ = "";
+
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateEntityTypeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest(this);
+      if (entityTypeBuilder_ == null) {
+        result.entityType_ = entityType_;
+      } else {
+        result.entityType_ = entityTypeBuilder_.build();
+      }
+      result.languageCode_ = languageCode_;
+      if (updateMaskBuilder_ == null) {
+        result.updateMask_ = updateMask_;
+      } else {
+        result.updateMask_ = updateMaskBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest.getDefaultInstance())
+        return this;
+      if (other.hasEntityType()) {
+        mergeEntityType(other.getEntityType());
+      }
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
+      }
+      if (other.hasUpdateMask()) {
+        mergeUpdateMask(other.getUpdateMask());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.EntityType entityType_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder>
+        entityTypeBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the entityType field is set.
+     */
+    public boolean hasEntityType() {
+      return entityTypeBuilder_ != null || entityType_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The entityType.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType getEntityType() {
+      if (entityTypeBuilder_ == null) {
+        return entityType_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.EntityType.getDefaultInstance()
+            : entityType_;
+      } else {
+        return entityTypeBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setEntityType(com.google.cloud.dialogflow.cx.v3beta1.EntityType value) {
+      if (entityTypeBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        entityType_ = value;
+        onChanged();
+      } else {
+        entityTypeBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder builderForValue) {
+      if (entityTypeBuilder_ == null) {
+        entityType_ = builderForValue.build();
+        onChanged();
+      } else {
+        entityTypeBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeEntityType(com.google.cloud.dialogflow.cx.v3beta1.EntityType value) {
+      if (entityTypeBuilder_ == null) {
+        if (entityType_ != null) {
+          entityType_ =
+              com.google.cloud.dialogflow.cx.v3beta1.EntityType.newBuilder(entityType_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          entityType_ = value;
+        }
+        onChanged();
+      } else {
+        entityTypeBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearEntityType() {
+      if (entityTypeBuilder_ == null) {
+        entityType_ = null;
+        onChanged();
+      } else {
+        entityType_ = null;
+        entityTypeBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder getEntityTypeBuilder() {
+
+      onChanged();
+      return getEntityTypeFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder getEntityTypeOrBuilder() {
+      if (entityTypeBuilder_ != null) {
+        return entityTypeBuilder_.getMessageOrBuilder();
+      } else {
+        return entityType_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.EntityType.getDefaultInstance()
+            : entityType_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The entity type to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder>
+        getEntityTypeFieldBuilder() {
+      if (entityTypeBuilder_ == null) {
+        entityTypeBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.EntityType,
+                com.google.cloud.dialogflow.cx.v3beta1.EntityType.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder>(
+                getEntityType(), getParentForChildren(), isClean());
+        entityType_ = null;
+      }
+      return entityTypeBuilder_;
+    }
+
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `entity_type`:
+     * *   `EntityType.entities.value`
+     * *   `EntityType.entities.synonyms`
+     * *   `EntityType.excluded_phrases.value`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `entity_type`:
+     * *   `EntityType.entities.value`
+     * *   `EntityType.entities.synonyms`
+     * *   `EntityType.excluded_phrases.value`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `entity_type`:
+     * *   `EntityType.entities.value`
+     * *   `EntityType.entities.synonyms`
+     * *   `EntityType.excluded_phrases.value`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `entity_type`:
+     * *   `EntityType.entities.value`
+     * *   `EntityType.entities.synonyms`
+     * *   `EntityType.excluded_phrases.value`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `entity_type`:
+     * *   `EntityType.entities.value`
+     * *   `EntityType.entities.synonyms`
+     * *   `EntityType.excluded_phrases.value`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.FieldMask updateMask_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        updateMaskBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     *
+     * @return Whether the updateMask field is set.
+     */
+    public boolean hasUpdateMask() {
+      return updateMaskBuilder_ != null || updateMask_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     *
+     * @return The updateMask.
+     */
+    public com.google.protobuf.FieldMask getUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      } else {
+        return updateMaskBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        updateMask_ = value;
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask.Builder builderForValue) {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = builderForValue.build();
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     */
+    public Builder mergeUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (updateMask_ != null) {
+          updateMask_ =
+              com.google.protobuf.FieldMask.newBuilder(updateMask_).mergeFrom(value).buildPartial();
+        } else {
+          updateMask_ = value;
+        }
+        onChanged();
+      } else {
+        updateMaskBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     */
+    public Builder clearUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+        onChanged();
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     */
+    public com.google.protobuf.FieldMask.Builder getUpdateMaskBuilder() {
+
+      onChanged();
+      return getUpdateMaskFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     */
+    public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+      if (updateMaskBuilder_ != null) {
+        return updateMaskBuilder_.getMessageOrBuilder();
+      } else {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        getUpdateMaskFieldBuilder() {
+      if (updateMaskBuilder_ == null) {
+        updateMaskBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.FieldMask,
+                com.google.protobuf.FieldMask.Builder,
+                com.google.protobuf.FieldMaskOrBuilder>(
+                getUpdateMask(), getParentForChildren(), isClean());
+        updateMask_ = null;
+      }
+      return updateMaskBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<UpdateEntityTypeRequest> PARSER =
+      new com.google.protobuf.AbstractParser<UpdateEntityTypeRequest>() {
+        @java.lang.Override
+        public UpdateEntityTypeRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new UpdateEntityTypeRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<UpdateEntityTypeRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<UpdateEntityTypeRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateEntityTypeRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateEntityTypeRequestOrBuilder.java
new file mode 100644
index 000000000..6a43b0cfa
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateEntityTypeRequestOrBuilder.java
@@ -0,0 +1,142 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface UpdateEntityTypeRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.UpdateEntityTypeRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The entity type to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the entityType field is set.
+   */
+  boolean hasEntityType();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The entity type to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The entityType.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.EntityType getEntityType();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The entity type to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.EntityType entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder getEntityTypeOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `entity_type`:
+   * *   `EntityType.entities.value`
+   * *   `EntityType.entities.synonyms`
+   * *   `EntityType.excluded_phrases.value`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `entity_type`:
+   * *   `EntityType.entities.value`
+   * *   `EntityType.entities.synonyms`
+   * *   `EntityType.excluded_phrases.value`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+   *
+   * @return Whether the updateMask field is set.
+   */
+  boolean hasUpdateMask();
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+   *
+   * @return The updateMask.
+   */
+  com.google.protobuf.FieldMask getUpdateMask();
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+   */
+  com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateEnvironmentRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateEnvironmentRequest.java
new file mode 100644
index 000000000..6456b38c2
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateEnvironmentRequest.java
@@ -0,0 +1,1051 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/environment.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Environments.UpdateEnvironment][google.cloud.dialogflow.cx.v3beta1.Environments.UpdateEnvironment].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest}
+ */
+public final class UpdateEnvironmentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest)
+    UpdateEnvironmentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use UpdateEnvironmentRequest.newBuilder() to construct.
+  private UpdateEnvironmentRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private UpdateEnvironmentRequest() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new UpdateEnvironmentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private UpdateEnvironmentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder subBuilder = null;
+              if (environment_ != null) {
+                subBuilder = environment_.toBuilder();
+              }
+              environment_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Environment.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(environment_);
+                environment_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 18:
+            {
+              com.google.protobuf.FieldMask.Builder subBuilder = null;
+              if (updateMask_ != null) {
+                subBuilder = updateMask_.toBuilder();
+              }
+              updateMask_ =
+                  input.readMessage(com.google.protobuf.FieldMask.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(updateMask_);
+                updateMask_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateEnvironmentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateEnvironmentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest.Builder.class);
+  }
+
+  public static final int ENVIRONMENT_FIELD_NUMBER = 1;
+  private com.google.cloud.dialogflow.cx.v3beta1.Environment environment_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The environment to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the environment field is set.
+   */
+  @java.lang.Override
+  public boolean hasEnvironment() {
+    return environment_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The environment to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The environment.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Environment getEnvironment() {
+    return environment_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.Environment.getDefaultInstance()
+        : environment_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The environment to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder getEnvironmentOrBuilder() {
+    return getEnvironment();
+  }
+
+  public static final int UPDATE_MASK_FIELD_NUMBER = 2;
+  private com.google.protobuf.FieldMask updateMask_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the updateMask field is set.
+   */
+  @java.lang.Override
+  public boolean hasUpdateMask() {
+    return updateMask_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The updateMask.
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMask getUpdateMask() {
+    return updateMask_ == null ? com.google.protobuf.FieldMask.getDefaultInstance() : updateMask_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+    return getUpdateMask();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (environment_ != null) {
+      output.writeMessage(1, getEnvironment());
+    }
+    if (updateMask_ != null) {
+      output.writeMessage(2, getUpdateMask());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (environment_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getEnvironment());
+    }
+    if (updateMask_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getUpdateMask());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest) obj;
+
+    if (hasEnvironment() != other.hasEnvironment()) return false;
+    if (hasEnvironment()) {
+      if (!getEnvironment().equals(other.getEnvironment())) return false;
+    }
+    if (hasUpdateMask() != other.hasUpdateMask()) return false;
+    if (hasUpdateMask()) {
+      if (!getUpdateMask().equals(other.getUpdateMask())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasEnvironment()) {
+      hash = (37 * hash) + ENVIRONMENT_FIELD_NUMBER;
+      hash = (53 * hash) + getEnvironment().hashCode();
+    }
+    if (hasUpdateMask()) {
+      hash = (37 * hash) + UPDATE_MASK_FIELD_NUMBER;
+      hash = (53 * hash) + getUpdateMask().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Environments.UpdateEnvironment][google.cloud.dialogflow.cx.v3beta1.Environments.UpdateEnvironment].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateEnvironmentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateEnvironmentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (environmentBuilder_ == null) {
+        environment_ = null;
+      } else {
+        environment_ = null;
+        environmentBuilder_ = null;
+      }
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateEnvironmentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest(this);
+      if (environmentBuilder_ == null) {
+        result.environment_ = environment_;
+      } else {
+        result.environment_ = environmentBuilder_.build();
+      }
+      if (updateMaskBuilder_ == null) {
+        result.updateMask_ = updateMask_;
+      } else {
+        result.updateMask_ = updateMaskBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest.getDefaultInstance())
+        return this;
+      if (other.hasEnvironment()) {
+        mergeEnvironment(other.getEnvironment());
+      }
+      if (other.hasUpdateMask()) {
+        mergeUpdateMask(other.getUpdateMask());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Environment environment_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Environment,
+            com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder>
+        environmentBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The environment to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the environment field is set.
+     */
+    public boolean hasEnvironment() {
+      return environmentBuilder_ != null || environment_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The environment to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The environment.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Environment getEnvironment() {
+      if (environmentBuilder_ == null) {
+        return environment_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Environment.getDefaultInstance()
+            : environment_;
+      } else {
+        return environmentBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The environment to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setEnvironment(com.google.cloud.dialogflow.cx.v3beta1.Environment value) {
+      if (environmentBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        environment_ = value;
+        onChanged();
+      } else {
+        environmentBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The environment to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setEnvironment(
+        com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder builderForValue) {
+      if (environmentBuilder_ == null) {
+        environment_ = builderForValue.build();
+        onChanged();
+      } else {
+        environmentBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The environment to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeEnvironment(com.google.cloud.dialogflow.cx.v3beta1.Environment value) {
+      if (environmentBuilder_ == null) {
+        if (environment_ != null) {
+          environment_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Environment.newBuilder(environment_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          environment_ = value;
+        }
+        onChanged();
+      } else {
+        environmentBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The environment to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearEnvironment() {
+      if (environmentBuilder_ == null) {
+        environment_ = null;
+        onChanged();
+      } else {
+        environment_ = null;
+        environmentBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The environment to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder getEnvironmentBuilder() {
+
+      onChanged();
+      return getEnvironmentFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The environment to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder getEnvironmentOrBuilder() {
+      if (environmentBuilder_ != null) {
+        return environmentBuilder_.getMessageOrBuilder();
+      } else {
+        return environment_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Environment.getDefaultInstance()
+            : environment_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The environment to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Environment,
+            com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder>
+        getEnvironmentFieldBuilder() {
+      if (environmentBuilder_ == null) {
+        environmentBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Environment,
+                com.google.cloud.dialogflow.cx.v3beta1.Environment.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder>(
+                getEnvironment(), getParentForChildren(), isClean());
+        environment_ = null;
+      }
+      return environmentBuilder_;
+    }
+
+    private com.google.protobuf.FieldMask updateMask_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        updateMaskBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the updateMask field is set.
+     */
+    public boolean hasUpdateMask() {
+      return updateMaskBuilder_ != null || updateMask_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The updateMask.
+     */
+    public com.google.protobuf.FieldMask getUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      } else {
+        return updateMaskBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        updateMask_ = value;
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask.Builder builderForValue) {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = builderForValue.build();
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (updateMask_ != null) {
+          updateMask_ =
+              com.google.protobuf.FieldMask.newBuilder(updateMask_).mergeFrom(value).buildPartial();
+        } else {
+          updateMask_ = value;
+        }
+        onChanged();
+      } else {
+        updateMaskBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+        onChanged();
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.protobuf.FieldMask.Builder getUpdateMaskBuilder() {
+
+      onChanged();
+      return getUpdateMaskFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+      if (updateMaskBuilder_ != null) {
+        return updateMaskBuilder_.getMessageOrBuilder();
+      } else {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        getUpdateMaskFieldBuilder() {
+      if (updateMaskBuilder_ == null) {
+        updateMaskBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.FieldMask,
+                com.google.protobuf.FieldMask.Builder,
+                com.google.protobuf.FieldMaskOrBuilder>(
+                getUpdateMask(), getParentForChildren(), isClean());
+        updateMask_ = null;
+      }
+      return updateMaskBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<UpdateEnvironmentRequest> PARSER =
+      new com.google.protobuf.AbstractParser<UpdateEnvironmentRequest>() {
+        @java.lang.Override
+        public UpdateEnvironmentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new UpdateEnvironmentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<UpdateEnvironmentRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<UpdateEnvironmentRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateEnvironmentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateEnvironmentRequestOrBuilder.java
new file mode 100644
index 000000000..03f67eebe
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateEnvironmentRequestOrBuilder.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/environment.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface UpdateEnvironmentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.UpdateEnvironmentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The environment to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the environment field is set.
+   */
+  boolean hasEnvironment();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The environment to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The environment.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Environment getEnvironment();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The environment to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.EnvironmentOrBuilder getEnvironmentOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the updateMask field is set.
+   */
+  boolean hasUpdateMask();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The updateMask.
+   */
+  com.google.protobuf.FieldMask getUpdateMask();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateFlowRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateFlowRequest.java
new file mode 100644
index 000000000..e410f4d33
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateFlowRequest.java
@@ -0,0 +1,1281 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/flow.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Flows.UpdateFlow][google.cloud.dialogflow.cx.v3beta1.Flows.UpdateFlow].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest}
+ */
+public final class UpdateFlowRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest)
+    UpdateFlowRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use UpdateFlowRequest.newBuilder() to construct.
+  private UpdateFlowRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private UpdateFlowRequest() {
+    languageCode_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new UpdateFlowRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private UpdateFlowRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder subBuilder = null;
+              if (flow_ != null) {
+                subBuilder = flow_.toBuilder();
+              }
+              flow_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Flow.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(flow_);
+                flow_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 18:
+            {
+              com.google.protobuf.FieldMask.Builder subBuilder = null;
+              if (updateMask_ != null) {
+                subBuilder = updateMask_.toBuilder();
+              }
+              updateMask_ =
+                  input.readMessage(com.google.protobuf.FieldMask.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(updateMask_);
+                updateMask_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              languageCode_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateFlowRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateFlowRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest.Builder.class);
+  }
+
+  public static final int FLOW_FIELD_NUMBER = 1;
+  private com.google.cloud.dialogflow.cx.v3beta1.Flow flow_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the flow field is set.
+   */
+  @java.lang.Override
+  public boolean hasFlow() {
+    return flow_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The flow.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Flow getFlow() {
+    return flow_ == null ? com.google.cloud.dialogflow.cx.v3beta1.Flow.getDefaultInstance() : flow_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder getFlowOrBuilder() {
+    return getFlow();
+  }
+
+  public static final int UPDATE_MASK_FIELD_NUMBER = 2;
+  private com.google.protobuf.FieldMask updateMask_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The mask to control which fields get updated. If `update_mask` is not
+   * specified, an error will be returned.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the updateMask field is set.
+   */
+  @java.lang.Override
+  public boolean hasUpdateMask() {
+    return updateMask_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The mask to control which fields get updated. If `update_mask` is not
+   * specified, an error will be returned.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The updateMask.
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMask getUpdateMask() {
+    return updateMask_ == null ? com.google.protobuf.FieldMask.getDefaultInstance() : updateMask_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The mask to control which fields get updated. If `update_mask` is not
+   * specified, an error will be returned.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+    return getUpdateMask();
+  }
+
+  public static final int LANGUAGE_CODE_FIELD_NUMBER = 3;
+  private volatile java.lang.Object languageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `flow`:
+   * *  `Flow.event_handlers.trigger_fulfillment.messages`
+   * *  `Flow.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The languageCode.
+   */
+  @java.lang.Override
+  public java.lang.String getLanguageCode() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      languageCode_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `flow`:
+   * *  `Flow.event_handlers.trigger_fulfillment.messages`
+   * *  `Flow.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getLanguageCodeBytes() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      languageCode_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (flow_ != null) {
+      output.writeMessage(1, getFlow());
+    }
+    if (updateMask_ != null) {
+      output.writeMessage(2, getUpdateMask());
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, languageCode_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (flow_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getFlow());
+    }
+    if (updateMask_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getUpdateMask());
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, languageCode_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest) obj;
+
+    if (hasFlow() != other.hasFlow()) return false;
+    if (hasFlow()) {
+      if (!getFlow().equals(other.getFlow())) return false;
+    }
+    if (hasUpdateMask() != other.hasUpdateMask()) return false;
+    if (hasUpdateMask()) {
+      if (!getUpdateMask().equals(other.getUpdateMask())) return false;
+    }
+    if (!getLanguageCode().equals(other.getLanguageCode())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasFlow()) {
+      hash = (37 * hash) + FLOW_FIELD_NUMBER;
+      hash = (53 * hash) + getFlow().hashCode();
+    }
+    if (hasUpdateMask()) {
+      hash = (37 * hash) + UPDATE_MASK_FIELD_NUMBER;
+      hash = (53 * hash) + getUpdateMask().hashCode();
+    }
+    hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
+    hash = (53 * hash) + getLanguageCode().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Flows.UpdateFlow][google.cloud.dialogflow.cx.v3beta1.Flows.UpdateFlow].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateFlowRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateFlowRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (flowBuilder_ == null) {
+        flow_ = null;
+      } else {
+        flow_ = null;
+        flowBuilder_ = null;
+      }
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+      languageCode_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.FlowProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateFlowRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest(this);
+      if (flowBuilder_ == null) {
+        result.flow_ = flow_;
+      } else {
+        result.flow_ = flowBuilder_.build();
+      }
+      if (updateMaskBuilder_ == null) {
+        result.updateMask_ = updateMask_;
+      } else {
+        result.updateMask_ = updateMaskBuilder_.build();
+      }
+      result.languageCode_ = languageCode_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest.getDefaultInstance())
+        return this;
+      if (other.hasFlow()) {
+        mergeFlow(other.getFlow());
+      }
+      if (other.hasUpdateMask()) {
+        mergeUpdateMask(other.getUpdateMask());
+      }
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Flow flow_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Flow,
+            com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder>
+        flowBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the flow field is set.
+     */
+    public boolean hasFlow() {
+      return flowBuilder_ != null || flow_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The flow.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Flow getFlow() {
+      if (flowBuilder_ == null) {
+        return flow_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Flow.getDefaultInstance()
+            : flow_;
+      } else {
+        return flowBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setFlow(com.google.cloud.dialogflow.cx.v3beta1.Flow value) {
+      if (flowBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        flow_ = value;
+        onChanged();
+      } else {
+        flowBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setFlow(com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder builderForValue) {
+      if (flowBuilder_ == null) {
+        flow_ = builderForValue.build();
+        onChanged();
+      } else {
+        flowBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeFlow(com.google.cloud.dialogflow.cx.v3beta1.Flow value) {
+      if (flowBuilder_ == null) {
+        if (flow_ != null) {
+          flow_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Flow.newBuilder(flow_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          flow_ = value;
+        }
+        onChanged();
+      } else {
+        flowBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearFlow() {
+      if (flowBuilder_ == null) {
+        flow_ = null;
+        onChanged();
+      } else {
+        flow_ = null;
+        flowBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder getFlowBuilder() {
+
+      onChanged();
+      return getFlowFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder getFlowOrBuilder() {
+      if (flowBuilder_ != null) {
+        return flowBuilder_.getMessageOrBuilder();
+      } else {
+        return flow_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Flow.getDefaultInstance()
+            : flow_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The flow to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Flow,
+            com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder>
+        getFlowFieldBuilder() {
+      if (flowBuilder_ == null) {
+        flowBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Flow,
+                com.google.cloud.dialogflow.cx.v3beta1.Flow.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder>(
+                getFlow(), getParentForChildren(), isClean());
+        flow_ = null;
+      }
+      return flowBuilder_;
+    }
+
+    private com.google.protobuf.FieldMask updateMask_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        updateMaskBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated. If `update_mask` is not
+     * specified, an error will be returned.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the updateMask field is set.
+     */
+    public boolean hasUpdateMask() {
+      return updateMaskBuilder_ != null || updateMask_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated. If `update_mask` is not
+     * specified, an error will be returned.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The updateMask.
+     */
+    public com.google.protobuf.FieldMask getUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      } else {
+        return updateMaskBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated. If `update_mask` is not
+     * specified, an error will be returned.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        updateMask_ = value;
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated. If `update_mask` is not
+     * specified, an error will be returned.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask.Builder builderForValue) {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = builderForValue.build();
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated. If `update_mask` is not
+     * specified, an error will be returned.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (updateMask_ != null) {
+          updateMask_ =
+              com.google.protobuf.FieldMask.newBuilder(updateMask_).mergeFrom(value).buildPartial();
+        } else {
+          updateMask_ = value;
+        }
+        onChanged();
+      } else {
+        updateMaskBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated. If `update_mask` is not
+     * specified, an error will be returned.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+        onChanged();
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated. If `update_mask` is not
+     * specified, an error will be returned.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.protobuf.FieldMask.Builder getUpdateMaskBuilder() {
+
+      onChanged();
+      return getUpdateMaskFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated. If `update_mask` is not
+     * specified, an error will be returned.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+      if (updateMaskBuilder_ != null) {
+        return updateMaskBuilder_.getMessageOrBuilder();
+      } else {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated. If `update_mask` is not
+     * specified, an error will be returned.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        getUpdateMaskFieldBuilder() {
+      if (updateMaskBuilder_ == null) {
+        updateMaskBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.FieldMask,
+                com.google.protobuf.FieldMask.Builder,
+                com.google.protobuf.FieldMaskOrBuilder>(
+                getUpdateMask(), getParentForChildren(), isClean());
+        updateMask_ = null;
+      }
+      return updateMaskBuilder_;
+    }
+
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `flow`:
+     * *  `Flow.event_handlers.trigger_fulfillment.messages`
+     * *  `Flow.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `flow`:
+     * *  `Flow.event_handlers.trigger_fulfillment.messages`
+     * *  `Flow.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `flow`:
+     * *  `Flow.event_handlers.trigger_fulfillment.messages`
+     * *  `Flow.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `flow`:
+     * *  `Flow.event_handlers.trigger_fulfillment.messages`
+     * *  `Flow.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `flow`:
+     * *  `Flow.event_handlers.trigger_fulfillment.messages`
+     * *  `Flow.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<UpdateFlowRequest> PARSER =
+      new com.google.protobuf.AbstractParser<UpdateFlowRequest>() {
+        @java.lang.Override
+        public UpdateFlowRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new UpdateFlowRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<UpdateFlowRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<UpdateFlowRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateFlowRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateFlowRequestOrBuilder.java
new file mode 100644
index 000000000..7b31b182d
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateFlowRequestOrBuilder.java
@@ -0,0 +1,146 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/flow.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface UpdateFlowRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.UpdateFlowRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the flow field is set.
+   */
+  boolean hasFlow();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The flow.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Flow getFlow();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The flow to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Flow flow = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder getFlowOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The mask to control which fields get updated. If `update_mask` is not
+   * specified, an error will be returned.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the updateMask field is set.
+   */
+  boolean hasUpdateMask();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The mask to control which fields get updated. If `update_mask` is not
+   * specified, an error will be returned.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The updateMask.
+   */
+  com.google.protobuf.FieldMask getUpdateMask();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The mask to control which fields get updated. If `update_mask` is not
+   * specified, an error will be returned.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `flow`:
+   * *  `Flow.event_handlers.trigger_fulfillment.messages`
+   * *  `Flow.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `flow`:
+   * *  `Flow.event_handlers.trigger_fulfillment.messages`
+   * *  `Flow.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateIntentRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateIntentRequest.java
new file mode 100644
index 000000000..a284be2ce
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateIntentRequest.java
@@ -0,0 +1,1265 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/intent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Intents.UpdateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.UpdateIntent].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest}
+ */
+public final class UpdateIntentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest)
+    UpdateIntentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use UpdateIntentRequest.newBuilder() to construct.
+  private UpdateIntentRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private UpdateIntentRequest() {
+    languageCode_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new UpdateIntentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private UpdateIntentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder subBuilder = null;
+              if (intent_ != null) {
+                subBuilder = intent_.toBuilder();
+              }
+              intent_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Intent.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(intent_);
+                intent_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              languageCode_ = s;
+              break;
+            }
+          case 26:
+            {
+              com.google.protobuf.FieldMask.Builder subBuilder = null;
+              if (updateMask_ != null) {
+                subBuilder = updateMask_.toBuilder();
+              }
+              updateMask_ =
+                  input.readMessage(com.google.protobuf.FieldMask.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(updateMask_);
+                updateMask_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateIntentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateIntentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest.Builder.class);
+  }
+
+  public static final int INTENT_FIELD_NUMBER = 1;
+  private com.google.cloud.dialogflow.cx.v3beta1.Intent intent_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The intent to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the intent field is set.
+   */
+  @java.lang.Override
+  public boolean hasIntent() {
+    return intent_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The intent to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The intent.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Intent getIntent() {
+    return intent_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.Intent.getDefaultInstance()
+        : intent_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The intent to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder getIntentOrBuilder() {
+    return getIntent();
+  }
+
+  public static final int LANGUAGE_CODE_FIELD_NUMBER = 2;
+  private volatile java.lang.Object languageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `intent`:
+   * *   `Intent.training_phrases.parts.text`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The languageCode.
+   */
+  @java.lang.Override
+  public java.lang.String getLanguageCode() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      languageCode_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `intent`:
+   * *   `Intent.training_phrases.parts.text`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getLanguageCodeBytes() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      languageCode_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int UPDATE_MASK_FIELD_NUMBER = 3;
+  private com.google.protobuf.FieldMask updateMask_;
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+   *
+   * @return Whether the updateMask field is set.
+   */
+  @java.lang.Override
+  public boolean hasUpdateMask() {
+    return updateMask_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+   *
+   * @return The updateMask.
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMask getUpdateMask() {
+    return updateMask_ == null ? com.google.protobuf.FieldMask.getDefaultInstance() : updateMask_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+    return getUpdateMask();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (intent_ != null) {
+      output.writeMessage(1, getIntent());
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, languageCode_);
+    }
+    if (updateMask_ != null) {
+      output.writeMessage(3, getUpdateMask());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (intent_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getIntent());
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, languageCode_);
+    }
+    if (updateMask_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getUpdateMask());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest) obj;
+
+    if (hasIntent() != other.hasIntent()) return false;
+    if (hasIntent()) {
+      if (!getIntent().equals(other.getIntent())) return false;
+    }
+    if (!getLanguageCode().equals(other.getLanguageCode())) return false;
+    if (hasUpdateMask() != other.hasUpdateMask()) return false;
+    if (hasUpdateMask()) {
+      if (!getUpdateMask().equals(other.getUpdateMask())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasIntent()) {
+      hash = (37 * hash) + INTENT_FIELD_NUMBER;
+      hash = (53 * hash) + getIntent().hashCode();
+    }
+    hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
+    hash = (53 * hash) + getLanguageCode().hashCode();
+    if (hasUpdateMask()) {
+      hash = (37 * hash) + UPDATE_MASK_FIELD_NUMBER;
+      hash = (53 * hash) + getUpdateMask().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Intents.UpdateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.UpdateIntent].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateIntentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateIntentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (intentBuilder_ == null) {
+        intent_ = null;
+      } else {
+        intent_ = null;
+        intentBuilder_ = null;
+      }
+      languageCode_ = "";
+
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.IntentProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateIntentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest(this);
+      if (intentBuilder_ == null) {
+        result.intent_ = intent_;
+      } else {
+        result.intent_ = intentBuilder_.build();
+      }
+      result.languageCode_ = languageCode_;
+      if (updateMaskBuilder_ == null) {
+        result.updateMask_ = updateMask_;
+      } else {
+        result.updateMask_ = updateMaskBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest.getDefaultInstance())
+        return this;
+      if (other.hasIntent()) {
+        mergeIntent(other.getIntent());
+      }
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
+      }
+      if (other.hasUpdateMask()) {
+        mergeUpdateMask(other.getUpdateMask());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Intent intent_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Intent,
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder>
+        intentBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The intent to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the intent field is set.
+     */
+    public boolean hasIntent() {
+      return intentBuilder_ != null || intent_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The intent to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The intent.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent getIntent() {
+      if (intentBuilder_ == null) {
+        return intent_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Intent.getDefaultInstance()
+            : intent_;
+      } else {
+        return intentBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The intent to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setIntent(com.google.cloud.dialogflow.cx.v3beta1.Intent value) {
+      if (intentBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        intent_ = value;
+        onChanged();
+      } else {
+        intentBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The intent to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setIntent(
+        com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder builderForValue) {
+      if (intentBuilder_ == null) {
+        intent_ = builderForValue.build();
+        onChanged();
+      } else {
+        intentBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The intent to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeIntent(com.google.cloud.dialogflow.cx.v3beta1.Intent value) {
+      if (intentBuilder_ == null) {
+        if (intent_ != null) {
+          intent_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Intent.newBuilder(intent_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          intent_ = value;
+        }
+        onChanged();
+      } else {
+        intentBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The intent to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearIntent() {
+      if (intentBuilder_ == null) {
+        intent_ = null;
+        onChanged();
+      } else {
+        intent_ = null;
+        intentBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The intent to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder getIntentBuilder() {
+
+      onChanged();
+      return getIntentFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The intent to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder getIntentOrBuilder() {
+      if (intentBuilder_ != null) {
+        return intentBuilder_.getMessageOrBuilder();
+      } else {
+        return intent_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Intent.getDefaultInstance()
+            : intent_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The intent to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Intent,
+            com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder>
+        getIntentFieldBuilder() {
+      if (intentBuilder_ == null) {
+        intentBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Intent,
+                com.google.cloud.dialogflow.cx.v3beta1.Intent.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder>(
+                getIntent(), getParentForChildren(), isClean());
+        intent_ = null;
+      }
+      return intentBuilder_;
+    }
+
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `intent`:
+     * *   `Intent.training_phrases.parts.text`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `intent`:
+     * *   `Intent.training_phrases.parts.text`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `intent`:
+     * *   `Intent.training_phrases.parts.text`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `intent`:
+     * *   `Intent.training_phrases.parts.text`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `intent`:
+     * *   `Intent.training_phrases.parts.text`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.FieldMask updateMask_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        updateMaskBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     *
+     * @return Whether the updateMask field is set.
+     */
+    public boolean hasUpdateMask() {
+      return updateMaskBuilder_ != null || updateMask_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     *
+     * @return The updateMask.
+     */
+    public com.google.protobuf.FieldMask getUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      } else {
+        return updateMaskBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        updateMask_ = value;
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask.Builder builderForValue) {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = builderForValue.build();
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     */
+    public Builder mergeUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (updateMask_ != null) {
+          updateMask_ =
+              com.google.protobuf.FieldMask.newBuilder(updateMask_).mergeFrom(value).buildPartial();
+        } else {
+          updateMask_ = value;
+        }
+        onChanged();
+      } else {
+        updateMaskBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     */
+    public Builder clearUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+        onChanged();
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     */
+    public com.google.protobuf.FieldMask.Builder getUpdateMaskBuilder() {
+
+      onChanged();
+      return getUpdateMaskFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     */
+    public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+      if (updateMaskBuilder_ != null) {
+        return updateMaskBuilder_.getMessageOrBuilder();
+      } else {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        getUpdateMaskFieldBuilder() {
+      if (updateMaskBuilder_ == null) {
+        updateMaskBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.FieldMask,
+                com.google.protobuf.FieldMask.Builder,
+                com.google.protobuf.FieldMaskOrBuilder>(
+                getUpdateMask(), getParentForChildren(), isClean());
+        updateMask_ = null;
+      }
+      return updateMaskBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<UpdateIntentRequest> PARSER =
+      new com.google.protobuf.AbstractParser<UpdateIntentRequest>() {
+        @java.lang.Override
+        public UpdateIntentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new UpdateIntentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<UpdateIntentRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<UpdateIntentRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateIntentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateIntentRequestOrBuilder.java
new file mode 100644
index 000000000..aaeb01a63
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateIntentRequestOrBuilder.java
@@ -0,0 +1,141 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/intent.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface UpdateIntentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.UpdateIntentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The intent to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the intent field is set.
+   */
+  boolean hasIntent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The intent to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The intent.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Intent getIntent();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The intent to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Intent intent = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder getIntentOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `intent`:
+   * *   `Intent.training_phrases.parts.text`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `intent`:
+   * *   `Intent.training_phrases.parts.text`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+   *
+   * @return Whether the updateMask field is set.
+   */
+  boolean hasUpdateMask();
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+   *
+   * @return The updateMask.
+   */
+  com.google.protobuf.FieldMask getUpdateMask();
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+   */
+  com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdatePageRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdatePageRequest.java
new file mode 100644
index 000000000..87ffc31cb
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdatePageRequest.java
@@ -0,0 +1,1297 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/page.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Pages.UpdatePage][google.cloud.dialogflow.cx.v3beta1.Pages.UpdatePage].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest}
+ */
+public final class UpdatePageRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest)
+    UpdatePageRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use UpdatePageRequest.newBuilder() to construct.
+  private UpdatePageRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private UpdatePageRequest() {
+    languageCode_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new UpdatePageRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private UpdatePageRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Page.Builder subBuilder = null;
+              if (page_ != null) {
+                subBuilder = page_.toBuilder();
+              }
+              page_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Page.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(page_);
+                page_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              languageCode_ = s;
+              break;
+            }
+          case 26:
+            {
+              com.google.protobuf.FieldMask.Builder subBuilder = null;
+              if (updateMask_ != null) {
+                subBuilder = updateMask_.toBuilder();
+              }
+              updateMask_ =
+                  input.readMessage(com.google.protobuf.FieldMask.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(updateMask_);
+                updateMask_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdatePageRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdatePageRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest.Builder.class);
+  }
+
+  public static final int PAGE_FIELD_NUMBER = 1;
+  private com.google.cloud.dialogflow.cx.v3beta1.Page page_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The page to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Page page = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the page field is set.
+   */
+  @java.lang.Override
+  public boolean hasPage() {
+    return page_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The page to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Page page = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The page.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Page getPage() {
+    return page_ == null ? com.google.cloud.dialogflow.cx.v3beta1.Page.getDefaultInstance() : page_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The page to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Page page = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder getPageOrBuilder() {
+    return getPage();
+  }
+
+  public static final int LANGUAGE_CODE_FIELD_NUMBER = 2;
+  private volatile java.lang.Object languageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `page`:
+   * *  `Page.entry_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+   * *  `Page.transition_route.trigger_fulfillment.messages`
+   * *
+   * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The languageCode.
+   */
+  @java.lang.Override
+  public java.lang.String getLanguageCode() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      languageCode_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `page`:
+   * *  `Page.entry_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+   * *  `Page.transition_route.trigger_fulfillment.messages`
+   * *
+   * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getLanguageCodeBytes() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      languageCode_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int UPDATE_MASK_FIELD_NUMBER = 3;
+  private com.google.protobuf.FieldMask updateMask_;
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+   *
+   * @return Whether the updateMask field is set.
+   */
+  @java.lang.Override
+  public boolean hasUpdateMask() {
+    return updateMask_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+   *
+   * @return The updateMask.
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMask getUpdateMask() {
+    return updateMask_ == null ? com.google.protobuf.FieldMask.getDefaultInstance() : updateMask_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+    return getUpdateMask();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (page_ != null) {
+      output.writeMessage(1, getPage());
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, languageCode_);
+    }
+    if (updateMask_ != null) {
+      output.writeMessage(3, getUpdateMask());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (page_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getPage());
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, languageCode_);
+    }
+    if (updateMask_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getUpdateMask());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest) obj;
+
+    if (hasPage() != other.hasPage()) return false;
+    if (hasPage()) {
+      if (!getPage().equals(other.getPage())) return false;
+    }
+    if (!getLanguageCode().equals(other.getLanguageCode())) return false;
+    if (hasUpdateMask() != other.hasUpdateMask()) return false;
+    if (hasUpdateMask()) {
+      if (!getUpdateMask().equals(other.getUpdateMask())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasPage()) {
+      hash = (37 * hash) + PAGE_FIELD_NUMBER;
+      hash = (53 * hash) + getPage().hashCode();
+    }
+    hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
+    hash = (53 * hash) + getLanguageCode().hashCode();
+    if (hasUpdateMask()) {
+      hash = (37 * hash) + UPDATE_MASK_FIELD_NUMBER;
+      hash = (53 * hash) + getUpdateMask().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Pages.UpdatePage][google.cloud.dialogflow.cx.v3beta1.Pages.UpdatePage].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdatePageRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdatePageRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (pageBuilder_ == null) {
+        page_ = null;
+      } else {
+        page_ = null;
+        pageBuilder_ = null;
+      }
+      languageCode_ = "";
+
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.PageProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdatePageRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest(this);
+      if (pageBuilder_ == null) {
+        result.page_ = page_;
+      } else {
+        result.page_ = pageBuilder_.build();
+      }
+      result.languageCode_ = languageCode_;
+      if (updateMaskBuilder_ == null) {
+        result.updateMask_ = updateMask_;
+      } else {
+        result.updateMask_ = updateMaskBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest.getDefaultInstance())
+        return this;
+      if (other.hasPage()) {
+        mergePage(other.getPage());
+      }
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
+      }
+      if (other.hasUpdateMask()) {
+        mergeUpdateMask(other.getUpdateMask());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Page page_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Page,
+            com.google.cloud.dialogflow.cx.v3beta1.Page.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder>
+        pageBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The page to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Page page = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the page field is set.
+     */
+    public boolean hasPage() {
+      return pageBuilder_ != null || page_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The page to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Page page = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The page.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Page getPage() {
+      if (pageBuilder_ == null) {
+        return page_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Page.getDefaultInstance()
+            : page_;
+      } else {
+        return pageBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The page to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Page page = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setPage(com.google.cloud.dialogflow.cx.v3beta1.Page value) {
+      if (pageBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        page_ = value;
+        onChanged();
+      } else {
+        pageBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The page to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Page page = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setPage(com.google.cloud.dialogflow.cx.v3beta1.Page.Builder builderForValue) {
+      if (pageBuilder_ == null) {
+        page_ = builderForValue.build();
+        onChanged();
+      } else {
+        pageBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The page to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Page page = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergePage(com.google.cloud.dialogflow.cx.v3beta1.Page value) {
+      if (pageBuilder_ == null) {
+        if (page_ != null) {
+          page_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Page.newBuilder(page_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          page_ = value;
+        }
+        onChanged();
+      } else {
+        pageBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The page to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Page page = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearPage() {
+      if (pageBuilder_ == null) {
+        page_ = null;
+        onChanged();
+      } else {
+        page_ = null;
+        pageBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The page to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Page page = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Page.Builder getPageBuilder() {
+
+      onChanged();
+      return getPageFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The page to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Page page = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder getPageOrBuilder() {
+      if (pageBuilder_ != null) {
+        return pageBuilder_.getMessageOrBuilder();
+      } else {
+        return page_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Page.getDefaultInstance()
+            : page_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The page to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Page page = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Page,
+            com.google.cloud.dialogflow.cx.v3beta1.Page.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder>
+        getPageFieldBuilder() {
+      if (pageBuilder_ == null) {
+        pageBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Page,
+                com.google.cloud.dialogflow.cx.v3beta1.Page.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder>(
+                getPage(), getParentForChildren(), isClean());
+        page_ = null;
+      }
+      return pageBuilder_;
+    }
+
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `page`:
+     * *  `Page.entry_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+     * *  `Page.transition_route.trigger_fulfillment.messages`
+     * *
+     * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `page`:
+     * *  `Page.entry_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+     * *  `Page.transition_route.trigger_fulfillment.messages`
+     * *
+     * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `page`:
+     * *  `Page.entry_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+     * *  `Page.transition_route.trigger_fulfillment.messages`
+     * *
+     * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `page`:
+     * *  `Page.entry_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+     * *  `Page.transition_route.trigger_fulfillment.messages`
+     * *
+     * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language of the following fields in `page`:
+     * *  `Page.entry_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+     * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+     * *  `Page.transition_route.trigger_fulfillment.messages`
+     * *
+     * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 2;</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.FieldMask updateMask_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        updateMaskBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     *
+     * @return Whether the updateMask field is set.
+     */
+    public boolean hasUpdateMask() {
+      return updateMaskBuilder_ != null || updateMask_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     *
+     * @return The updateMask.
+     */
+    public com.google.protobuf.FieldMask getUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      } else {
+        return updateMaskBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        updateMask_ = value;
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask.Builder builderForValue) {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = builderForValue.build();
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     */
+    public Builder mergeUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (updateMask_ != null) {
+          updateMask_ =
+              com.google.protobuf.FieldMask.newBuilder(updateMask_).mergeFrom(value).buildPartial();
+        } else {
+          updateMask_ = value;
+        }
+        onChanged();
+      } else {
+        updateMaskBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     */
+    public Builder clearUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+        onChanged();
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     */
+    public com.google.protobuf.FieldMask.Builder getUpdateMaskBuilder() {
+
+      onChanged();
+      return getUpdateMaskFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     */
+    public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+      if (updateMaskBuilder_ != null) {
+        return updateMaskBuilder_.getMessageOrBuilder();
+      } else {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        getUpdateMaskFieldBuilder() {
+      if (updateMaskBuilder_ == null) {
+        updateMaskBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.FieldMask,
+                com.google.protobuf.FieldMask.Builder,
+                com.google.protobuf.FieldMaskOrBuilder>(
+                getUpdateMask(), getParentForChildren(), isClean());
+        updateMask_ = null;
+      }
+      return updateMaskBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<UpdatePageRequest> PARSER =
+      new com.google.protobuf.AbstractParser<UpdatePageRequest>() {
+        @java.lang.Override
+        public UpdatePageRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new UpdatePageRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<UpdatePageRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<UpdatePageRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdatePageRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdatePageRequestOrBuilder.java
new file mode 100644
index 000000000..fc7bb633d
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdatePageRequestOrBuilder.java
@@ -0,0 +1,151 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/page.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface UpdatePageRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.UpdatePageRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The page to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Page page = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the page field is set.
+   */
+  boolean hasPage();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The page to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Page page = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The page.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Page getPage();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The page to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Page page = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder getPageOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `page`:
+   * *  `Page.entry_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+   * *  `Page.transition_route.trigger_fulfillment.messages`
+   * *
+   * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * The language of the following fields in `page`:
+   * *  `Page.entry_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+   * *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+   * *  `Page.transition_route.trigger_fulfillment.messages`
+   * *
+   * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 2;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+   *
+   * @return Whether the updateMask field is set.
+   */
+  boolean hasUpdateMask();
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+   *
+   * @return The updateMask.
+   */
+  com.google.protobuf.FieldMask getUpdateMask();
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 3;</code>
+   */
+  com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateSessionEntityTypeRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateSessionEntityTypeRequest.java
new file mode 100644
index 000000000..b80234224
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateSessionEntityTypeRequest.java
@@ -0,0 +1,1074 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [SessionEntityTypes.UpdateSessionEntityType][google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes.UpdateSessionEntityType].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest}
+ */
+public final class UpdateSessionEntityTypeRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest)
+    UpdateSessionEntityTypeRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use UpdateSessionEntityTypeRequest.newBuilder() to construct.
+  private UpdateSessionEntityTypeRequest(
+      com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private UpdateSessionEntityTypeRequest() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new UpdateSessionEntityTypeRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private UpdateSessionEntityTypeRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder subBuilder = null;
+              if (sessionEntityType_ != null) {
+                subBuilder = sessionEntityType_.toBuilder();
+              }
+              sessionEntityType_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(sessionEntityType_);
+                sessionEntityType_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 18:
+            {
+              com.google.protobuf.FieldMask.Builder subBuilder = null;
+              if (updateMask_ != null) {
+                subBuilder = updateMask_.toBuilder();
+              }
+              updateMask_ =
+                  input.readMessage(com.google.protobuf.FieldMask.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(updateMask_);
+                updateMask_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateSessionEntityTypeRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateSessionEntityTypeRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest.Builder.class);
+  }
+
+  public static final int SESSION_ENTITY_TYPE_FIELD_NUMBER = 1;
+  private com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType sessionEntityType_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The session entity type to update.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the sessionEntityType field is set.
+   */
+  @java.lang.Override
+  public boolean hasSessionEntityType() {
+    return sessionEntityType_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The session entity type to update.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The sessionEntityType.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType getSessionEntityType() {
+    return sessionEntityType_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.getDefaultInstance()
+        : sessionEntityType_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The session entity type to update.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder
+      getSessionEntityTypeOrBuilder() {
+    return getSessionEntityType();
+  }
+
+  public static final int UPDATE_MASK_FIELD_NUMBER = 2;
+  private com.google.protobuf.FieldMask updateMask_;
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   *
+   * @return Whether the updateMask field is set.
+   */
+  @java.lang.Override
+  public boolean hasUpdateMask() {
+    return updateMask_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   *
+   * @return The updateMask.
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMask getUpdateMask() {
+    return updateMask_ == null ? com.google.protobuf.FieldMask.getDefaultInstance() : updateMask_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+    return getUpdateMask();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (sessionEntityType_ != null) {
+      output.writeMessage(1, getSessionEntityType());
+    }
+    if (updateMask_ != null) {
+      output.writeMessage(2, getUpdateMask());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (sessionEntityType_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getSessionEntityType());
+    }
+    if (updateMask_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getUpdateMask());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest) obj;
+
+    if (hasSessionEntityType() != other.hasSessionEntityType()) return false;
+    if (hasSessionEntityType()) {
+      if (!getSessionEntityType().equals(other.getSessionEntityType())) return false;
+    }
+    if (hasUpdateMask() != other.hasUpdateMask()) return false;
+    if (hasUpdateMask()) {
+      if (!getUpdateMask().equals(other.getUpdateMask())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasSessionEntityType()) {
+      hash = (37 * hash) + SESSION_ENTITY_TYPE_FIELD_NUMBER;
+      hash = (53 * hash) + getSessionEntityType().hashCode();
+    }
+    if (hasUpdateMask()) {
+      hash = (37 * hash) + UPDATE_MASK_FIELD_NUMBER;
+      hash = (53 * hash) + getUpdateMask().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest
+      parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest
+      parseDelimitedFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [SessionEntityTypes.UpdateSessionEntityType][google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes.UpdateSessionEntityType].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateSessionEntityTypeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateSessionEntityTypeRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest.Builder.class);
+    }
+
+    // Construct using
+    // com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (sessionEntityTypeBuilder_ == null) {
+        sessionEntityType_ = null;
+      } else {
+        sessionEntityType_ = null;
+        sessionEntityTypeBuilder_ = null;
+      }
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateSessionEntityTypeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest
+          .getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest(this);
+      if (sessionEntityTypeBuilder_ == null) {
+        result.sessionEntityType_ = sessionEntityType_;
+      } else {
+        result.sessionEntityType_ = sessionEntityTypeBuilder_.build();
+      }
+      if (updateMaskBuilder_ == null) {
+        result.updateMask_ = updateMask_;
+      } else {
+        result.updateMask_ = updateMaskBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest) {
+        return mergeFrom(
+            (com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest
+              .getDefaultInstance()) return this;
+      if (other.hasSessionEntityType()) {
+        mergeSessionEntityType(other.getSessionEntityType());
+      }
+      if (other.hasUpdateMask()) {
+        mergeUpdateMask(other.getUpdateMask());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType sessionEntityType_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder>
+        sessionEntityTypeBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session entity type to update.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the sessionEntityType field is set.
+     */
+    public boolean hasSessionEntityType() {
+      return sessionEntityTypeBuilder_ != null || sessionEntityType_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session entity type to update.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The sessionEntityType.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType getSessionEntityType() {
+      if (sessionEntityTypeBuilder_ == null) {
+        return sessionEntityType_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.getDefaultInstance()
+            : sessionEntityType_;
+      } else {
+        return sessionEntityTypeBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session entity type to update.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setSessionEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType value) {
+      if (sessionEntityTypeBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        sessionEntityType_ = value;
+        onChanged();
+      } else {
+        sessionEntityTypeBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session entity type to update.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setSessionEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder builderForValue) {
+      if (sessionEntityTypeBuilder_ == null) {
+        sessionEntityType_ = builderForValue.build();
+        onChanged();
+      } else {
+        sessionEntityTypeBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session entity type to update.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeSessionEntityType(
+        com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType value) {
+      if (sessionEntityTypeBuilder_ == null) {
+        if (sessionEntityType_ != null) {
+          sessionEntityType_ =
+              com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.newBuilder(
+                      sessionEntityType_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          sessionEntityType_ = value;
+        }
+        onChanged();
+      } else {
+        sessionEntityTypeBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session entity type to update.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearSessionEntityType() {
+      if (sessionEntityTypeBuilder_ == null) {
+        sessionEntityType_ = null;
+        onChanged();
+      } else {
+        sessionEntityType_ = null;
+        sessionEntityTypeBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session entity type to update.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder
+        getSessionEntityTypeBuilder() {
+
+      onChanged();
+      return getSessionEntityTypeFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session entity type to update.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder
+        getSessionEntityTypeOrBuilder() {
+      if (sessionEntityTypeBuilder_ != null) {
+        return sessionEntityTypeBuilder_.getMessageOrBuilder();
+      } else {
+        return sessionEntityType_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.getDefaultInstance()
+            : sessionEntityType_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The session entity type to update.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder>
+        getSessionEntityTypeFieldBuilder() {
+      if (sessionEntityTypeBuilder_ == null) {
+        sessionEntityTypeBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType,
+                com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder>(
+                getSessionEntityType(), getParentForChildren(), isClean());
+        sessionEntityType_ = null;
+      }
+      return sessionEntityTypeBuilder_;
+    }
+
+    private com.google.protobuf.FieldMask updateMask_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        updateMaskBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     *
+     * @return Whether the updateMask field is set.
+     */
+    public boolean hasUpdateMask() {
+      return updateMaskBuilder_ != null || updateMask_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     *
+     * @return The updateMask.
+     */
+    public com.google.protobuf.FieldMask getUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      } else {
+        return updateMaskBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        updateMask_ = value;
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask.Builder builderForValue) {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = builderForValue.build();
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public Builder mergeUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (updateMask_ != null) {
+          updateMask_ =
+              com.google.protobuf.FieldMask.newBuilder(updateMask_).mergeFrom(value).buildPartial();
+        } else {
+          updateMask_ = value;
+        }
+        onChanged();
+      } else {
+        updateMaskBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public Builder clearUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+        onChanged();
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public com.google.protobuf.FieldMask.Builder getUpdateMaskBuilder() {
+
+      onChanged();
+      return getUpdateMaskFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+      if (updateMaskBuilder_ != null) {
+        return updateMaskBuilder_.getMessageOrBuilder();
+      } else {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        getUpdateMaskFieldBuilder() {
+      if (updateMaskBuilder_ == null) {
+        updateMaskBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.FieldMask,
+                com.google.protobuf.FieldMask.Builder,
+                com.google.protobuf.FieldMaskOrBuilder>(
+                getUpdateMask(), getParentForChildren(), isClean());
+        updateMask_ = null;
+      }
+      return updateMaskBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<UpdateSessionEntityTypeRequest> PARSER =
+      new com.google.protobuf.AbstractParser<UpdateSessionEntityTypeRequest>() {
+        @java.lang.Override
+        public UpdateSessionEntityTypeRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new UpdateSessionEntityTypeRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<UpdateSessionEntityTypeRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<UpdateSessionEntityTypeRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateSessionEntityTypeRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateSessionEntityTypeRequestOrBuilder.java
new file mode 100644
index 000000000..e971b66ce
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateSessionEntityTypeRequestOrBuilder.java
@@ -0,0 +1,107 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface UpdateSessionEntityTypeRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.UpdateSessionEntityTypeRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The session entity type to update.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the sessionEntityType field is set.
+   */
+  boolean hasSessionEntityType();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The session entity type to update.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The sessionEntityType.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.SessionEntityType getSessionEntityType();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The session entity type to update.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/sessions/&lt;Session ID&gt;/entityTypes/&lt;Entity Type ID&gt;`.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.SessionEntityType session_entity_type = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder getSessionEntityTypeOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   *
+   * @return Whether the updateMask field is set.
+   */
+  boolean hasUpdateMask();
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   *
+   * @return The updateMask.
+   */
+  com.google.protobuf.FieldMask getUpdateMask();
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   */
+  com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateTransitionRouteGroupRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateTransitionRouteGroupRequest.java
new file mode 100644
index 000000000..79371a1e7
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateTransitionRouteGroupRequest.java
@@ -0,0 +1,1285 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [TransitionRouteGroups.UpdateTransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.UpdateTransitionRouteGroup].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest}
+ */
+public final class UpdateTransitionRouteGroupRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest)
+    UpdateTransitionRouteGroupRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use UpdateTransitionRouteGroupRequest.newBuilder() to construct.
+  private UpdateTransitionRouteGroupRequest(
+      com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private UpdateTransitionRouteGroupRequest() {
+    languageCode_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new UpdateTransitionRouteGroupRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private UpdateTransitionRouteGroupRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder subBuilder = null;
+              if (transitionRouteGroup_ != null) {
+                subBuilder = transitionRouteGroup_.toBuilder();
+              }
+              transitionRouteGroup_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(transitionRouteGroup_);
+                transitionRouteGroup_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 18:
+            {
+              com.google.protobuf.FieldMask.Builder subBuilder = null;
+              if (updateMask_ != null) {
+                subBuilder = updateMask_.toBuilder();
+              }
+              updateMask_ =
+                  input.readMessage(com.google.protobuf.FieldMask.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(updateMask_);
+                updateMask_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              languageCode_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateTransitionRouteGroupRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateTransitionRouteGroupRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest.Builder.class);
+  }
+
+  public static final int TRANSITION_ROUTE_GROUP_FIELD_NUMBER = 1;
+  private com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transitionRouteGroup_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The transition route group to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the transitionRouteGroup field is set.
+   */
+  @java.lang.Override
+  public boolean hasTransitionRouteGroup() {
+    return transitionRouteGroup_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The transition route group to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The transitionRouteGroup.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup getTransitionRouteGroup() {
+    return transitionRouteGroup_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.getDefaultInstance()
+        : transitionRouteGroup_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The transition route group to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupOrBuilder
+      getTransitionRouteGroupOrBuilder() {
+    return getTransitionRouteGroup();
+  }
+
+  public static final int UPDATE_MASK_FIELD_NUMBER = 2;
+  private com.google.protobuf.FieldMask updateMask_;
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   *
+   * @return Whether the updateMask field is set.
+   */
+  @java.lang.Override
+  public boolean hasUpdateMask() {
+    return updateMask_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   *
+   * @return The updateMask.
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMask getUpdateMask() {
+    return updateMask_ == null ? com.google.protobuf.FieldMask.getDefaultInstance() : updateMask_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+    return getUpdateMask();
+  }
+
+  public static final int LANGUAGE_CODE_FIELD_NUMBER = 3;
+  private volatile java.lang.Object languageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * The language to list transition route groups for. The field
+   * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+   * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The languageCode.
+   */
+  @java.lang.Override
+  public java.lang.String getLanguageCode() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      languageCode_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The language to list transition route groups for. The field
+   * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+   * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getLanguageCodeBytes() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      languageCode_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (transitionRouteGroup_ != null) {
+      output.writeMessage(1, getTransitionRouteGroup());
+    }
+    if (updateMask_ != null) {
+      output.writeMessage(2, getUpdateMask());
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, languageCode_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (transitionRouteGroup_ != null) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(1, getTransitionRouteGroup());
+    }
+    if (updateMask_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getUpdateMask());
+    }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, languageCode_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj
+        instanceof com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest) obj;
+
+    if (hasTransitionRouteGroup() != other.hasTransitionRouteGroup()) return false;
+    if (hasTransitionRouteGroup()) {
+      if (!getTransitionRouteGroup().equals(other.getTransitionRouteGroup())) return false;
+    }
+    if (hasUpdateMask() != other.hasUpdateMask()) return false;
+    if (hasUpdateMask()) {
+      if (!getUpdateMask().equals(other.getUpdateMask())) return false;
+    }
+    if (!getLanguageCode().equals(other.getLanguageCode())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasTransitionRouteGroup()) {
+      hash = (37 * hash) + TRANSITION_ROUTE_GROUP_FIELD_NUMBER;
+      hash = (53 * hash) + getTransitionRouteGroup().hashCode();
+    }
+    if (hasUpdateMask()) {
+      hash = (37 * hash) + UPDATE_MASK_FIELD_NUMBER;
+      hash = (53 * hash) + getUpdateMask().hashCode();
+    }
+    hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
+    hash = (53 * hash) + getLanguageCode().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest
+      parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest
+      parseDelimitedFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [TransitionRouteGroups.UpdateTransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.UpdateTransitionRouteGroup].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateTransitionRouteGroupRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateTransitionRouteGroupRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest.Builder
+                  .class);
+    }
+
+    // Construct using
+    // com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (transitionRouteGroupBuilder_ == null) {
+        transitionRouteGroup_ = null;
+      } else {
+        transitionRouteGroup_ = null;
+        transitionRouteGroupBuilder_ = null;
+      }
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+      languageCode_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateTransitionRouteGroupRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest
+          .getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest result =
+          buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest(this);
+      if (transitionRouteGroupBuilder_ == null) {
+        result.transitionRouteGroup_ = transitionRouteGroup_;
+      } else {
+        result.transitionRouteGroup_ = transitionRouteGroupBuilder_.build();
+      }
+      if (updateMaskBuilder_ == null) {
+        result.updateMask_ = updateMask_;
+      } else {
+        result.updateMask_ = updateMaskBuilder_.build();
+      }
+      result.languageCode_ = languageCode_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other
+          instanceof com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest) {
+        return mergeFrom(
+            (com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest
+              .getDefaultInstance()) return this;
+      if (other.hasTransitionRouteGroup()) {
+        mergeTransitionRouteGroup(other.getTransitionRouteGroup());
+      }
+      if (other.hasUpdateMask()) {
+        mergeUpdateMask(other.getUpdateMask());
+      }
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transitionRouteGroup_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupOrBuilder>
+        transitionRouteGroupBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The transition route group to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the transitionRouteGroup field is set.
+     */
+    public boolean hasTransitionRouteGroup() {
+      return transitionRouteGroupBuilder_ != null || transitionRouteGroup_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The transition route group to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The transitionRouteGroup.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup getTransitionRouteGroup() {
+      if (transitionRouteGroupBuilder_ == null) {
+        return transitionRouteGroup_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.getDefaultInstance()
+            : transitionRouteGroup_;
+      } else {
+        return transitionRouteGroupBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The transition route group to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setTransitionRouteGroup(
+        com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup value) {
+      if (transitionRouteGroupBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        transitionRouteGroup_ = value;
+        onChanged();
+      } else {
+        transitionRouteGroupBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The transition route group to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setTransitionRouteGroup(
+        com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder builderForValue) {
+      if (transitionRouteGroupBuilder_ == null) {
+        transitionRouteGroup_ = builderForValue.build();
+        onChanged();
+      } else {
+        transitionRouteGroupBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The transition route group to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeTransitionRouteGroup(
+        com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup value) {
+      if (transitionRouteGroupBuilder_ == null) {
+        if (transitionRouteGroup_ != null) {
+          transitionRouteGroup_ =
+              com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.newBuilder(
+                      transitionRouteGroup_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          transitionRouteGroup_ = value;
+        }
+        onChanged();
+      } else {
+        transitionRouteGroupBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The transition route group to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearTransitionRouteGroup() {
+      if (transitionRouteGroupBuilder_ == null) {
+        transitionRouteGroup_ = null;
+        onChanged();
+      } else {
+        transitionRouteGroup_ = null;
+        transitionRouteGroupBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The transition route group to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder
+        getTransitionRouteGroupBuilder() {
+
+      onChanged();
+      return getTransitionRouteGroupFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The transition route group to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupOrBuilder
+        getTransitionRouteGroupOrBuilder() {
+      if (transitionRouteGroupBuilder_ != null) {
+        return transitionRouteGroupBuilder_.getMessageOrBuilder();
+      } else {
+        return transitionRouteGroup_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.getDefaultInstance()
+            : transitionRouteGroup_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The transition route group to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupOrBuilder>
+        getTransitionRouteGroupFieldBuilder() {
+      if (transitionRouteGroupBuilder_ == null) {
+        transitionRouteGroupBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup,
+                com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupOrBuilder>(
+                getTransitionRouteGroup(), getParentForChildren(), isClean());
+        transitionRouteGroup_ = null;
+      }
+      return transitionRouteGroupBuilder_;
+    }
+
+    private com.google.protobuf.FieldMask updateMask_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        updateMaskBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     *
+     * @return Whether the updateMask field is set.
+     */
+    public boolean hasUpdateMask() {
+      return updateMaskBuilder_ != null || updateMask_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     *
+     * @return The updateMask.
+     */
+    public com.google.protobuf.FieldMask getUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      } else {
+        return updateMaskBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        updateMask_ = value;
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask.Builder builderForValue) {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = builderForValue.build();
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public Builder mergeUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (updateMask_ != null) {
+          updateMask_ =
+              com.google.protobuf.FieldMask.newBuilder(updateMask_).mergeFrom(value).buildPartial();
+        } else {
+          updateMask_ = value;
+        }
+        onChanged();
+      } else {
+        updateMaskBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public Builder clearUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+        onChanged();
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public com.google.protobuf.FieldMask.Builder getUpdateMaskBuilder() {
+
+      onChanged();
+      return getUpdateMaskFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+      if (updateMaskBuilder_ != null) {
+        return updateMaskBuilder_.getMessageOrBuilder();
+      } else {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        getUpdateMaskFieldBuilder() {
+      if (updateMaskBuilder_ == null) {
+        updateMaskBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.FieldMask,
+                com.google.protobuf.FieldMask.Builder,
+                com.google.protobuf.FieldMaskOrBuilder>(
+                getUpdateMask(), getParentForChildren(), isClean());
+        updateMask_ = null;
+      }
+      return updateMaskBuilder_;
+    }
+
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The language to list transition route groups for. The field
+     * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+     * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list transition route groups for. The field
+     * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+     * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list transition route groups for. The field
+     * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+     * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list transition route groups for. The field
+     * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+     * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language to list transition route groups for. The field
+     * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+     * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+     * If not specified, the agent's default language is used.
+     * [Many
+     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * are supported.
+     * Note: languages must be enabled in the agent before they can be used.
+     * </pre>
+     *
+     * <code>string language_code = 3;</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE =
+        new com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<UpdateTransitionRouteGroupRequest> PARSER =
+      new com.google.protobuf.AbstractParser<UpdateTransitionRouteGroupRequest>() {
+        @java.lang.Override
+        public UpdateTransitionRouteGroupRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new UpdateTransitionRouteGroupRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<UpdateTransitionRouteGroupRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<UpdateTransitionRouteGroupRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateTransitionRouteGroupRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateTransitionRouteGroupRequestOrBuilder.java
new file mode 100644
index 000000000..aadba9b09
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateTransitionRouteGroupRequestOrBuilder.java
@@ -0,0 +1,141 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface UpdateTransitionRouteGroupRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.UpdateTransitionRouteGroupRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The transition route group to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the transitionRouteGroup field is set.
+   */
+  boolean hasTransitionRouteGroup();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The transition route group to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The transitionRouteGroup.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup getTransitionRouteGroup();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The transition route group to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup transition_route_group = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroupOrBuilder
+      getTransitionRouteGroupOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   *
+   * @return Whether the updateMask field is set.
+   */
+  boolean hasUpdateMask();
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   *
+   * @return The updateMask.
+   */
+  com.google.protobuf.FieldMask getUpdateMask();
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   */
+  com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The language to list transition route groups for. The field
+   * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+   * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * The language to list transition route groups for. The field
+   * [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+   * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+   * If not specified, the agent's default language is used.
+   * [Many
+   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * are supported.
+   * Note: languages must be enabled in the agent before they can be used.
+   * </pre>
+   *
+   * <code>string language_code = 3;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateVersionRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateVersionRequest.java
new file mode 100644
index 000000000..8ff0717b2
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateVersionRequest.java
@@ -0,0 +1,1055 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/version.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Versions.UpdateVersion][google.cloud.dialogflow.cx.v3beta1.Versions.UpdateVersion].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest}
+ */
+public final class UpdateVersionRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest)
+    UpdateVersionRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use UpdateVersionRequest.newBuilder() to construct.
+  private UpdateVersionRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private UpdateVersionRequest() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new UpdateVersionRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private UpdateVersionRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Version.Builder subBuilder = null;
+              if (version_ != null) {
+                subBuilder = version_.toBuilder();
+              }
+              version_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Version.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(version_);
+                version_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 18:
+            {
+              com.google.protobuf.FieldMask.Builder subBuilder = null;
+              if (updateMask_ != null) {
+                subBuilder = updateMask_.toBuilder();
+              }
+              updateMask_ =
+                  input.readMessage(com.google.protobuf.FieldMask.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(updateMask_);
+                updateMask_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateVersionRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateVersionRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest.Builder.class);
+  }
+
+  public static final int VERSION_FIELD_NUMBER = 1;
+  private com.google.cloud.dialogflow.cx.v3beta1.Version version_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The version to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the version field is set.
+   */
+  @java.lang.Override
+  public boolean hasVersion() {
+    return version_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The version to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The version.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Version getVersion() {
+    return version_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.Version.getDefaultInstance()
+        : version_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The version to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.VersionOrBuilder getVersionOrBuilder() {
+    return getVersion();
+  }
+
+  public static final int UPDATE_MASK_FIELD_NUMBER = 2;
+  private com.google.protobuf.FieldMask updateMask_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The mask to control which fields get updated. Currently only `description`
+   * and `display_name` can be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the updateMask field is set.
+   */
+  @java.lang.Override
+  public boolean hasUpdateMask() {
+    return updateMask_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The mask to control which fields get updated. Currently only `description`
+   * and `display_name` can be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The updateMask.
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMask getUpdateMask() {
+    return updateMask_ == null ? com.google.protobuf.FieldMask.getDefaultInstance() : updateMask_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The mask to control which fields get updated. Currently only `description`
+   * and `display_name` can be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+    return getUpdateMask();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (version_ != null) {
+      output.writeMessage(1, getVersion());
+    }
+    if (updateMask_ != null) {
+      output.writeMessage(2, getUpdateMask());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (version_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getVersion());
+    }
+    if (updateMask_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getUpdateMask());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest) obj;
+
+    if (hasVersion() != other.hasVersion()) return false;
+    if (hasVersion()) {
+      if (!getVersion().equals(other.getVersion())) return false;
+    }
+    if (hasUpdateMask() != other.hasUpdateMask()) return false;
+    if (hasUpdateMask()) {
+      if (!getUpdateMask().equals(other.getUpdateMask())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasVersion()) {
+      hash = (37 * hash) + VERSION_FIELD_NUMBER;
+      hash = (53 * hash) + getVersion().hashCode();
+    }
+    if (hasUpdateMask()) {
+      hash = (37 * hash) + UPDATE_MASK_FIELD_NUMBER;
+      hash = (53 * hash) + getUpdateMask().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Versions.UpdateVersion][google.cloud.dialogflow.cx.v3beta1.Versions.UpdateVersion].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateVersionRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateVersionRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (versionBuilder_ == null) {
+        version_ = null;
+      } else {
+        version_ = null;
+        versionBuilder_ = null;
+      }
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateVersionRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest(this);
+      if (versionBuilder_ == null) {
+        result.version_ = version_;
+      } else {
+        result.version_ = versionBuilder_.build();
+      }
+      if (updateMaskBuilder_ == null) {
+        result.updateMask_ = updateMask_;
+      } else {
+        result.updateMask_ = updateMaskBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest.getDefaultInstance())
+        return this;
+      if (other.hasVersion()) {
+        mergeVersion(other.getVersion());
+      }
+      if (other.hasUpdateMask()) {
+        mergeUpdateMask(other.getUpdateMask());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Version version_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Version,
+            com.google.cloud.dialogflow.cx.v3beta1.Version.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.VersionOrBuilder>
+        versionBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The version to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the version field is set.
+     */
+    public boolean hasVersion() {
+      return versionBuilder_ != null || version_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The version to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The version.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Version getVersion() {
+      if (versionBuilder_ == null) {
+        return version_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Version.getDefaultInstance()
+            : version_;
+      } else {
+        return versionBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The version to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setVersion(com.google.cloud.dialogflow.cx.v3beta1.Version value) {
+      if (versionBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        version_ = value;
+        onChanged();
+      } else {
+        versionBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The version to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setVersion(
+        com.google.cloud.dialogflow.cx.v3beta1.Version.Builder builderForValue) {
+      if (versionBuilder_ == null) {
+        version_ = builderForValue.build();
+        onChanged();
+      } else {
+        versionBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The version to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeVersion(com.google.cloud.dialogflow.cx.v3beta1.Version value) {
+      if (versionBuilder_ == null) {
+        if (version_ != null) {
+          version_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Version.newBuilder(version_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          version_ = value;
+        }
+        onChanged();
+      } else {
+        versionBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The version to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearVersion() {
+      if (versionBuilder_ == null) {
+        version_ = null;
+        onChanged();
+      } else {
+        version_ = null;
+        versionBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The version to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Version.Builder getVersionBuilder() {
+
+      onChanged();
+      return getVersionFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The version to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.VersionOrBuilder getVersionOrBuilder() {
+      if (versionBuilder_ != null) {
+        return versionBuilder_.getMessageOrBuilder();
+      } else {
+        return version_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Version.getDefaultInstance()
+            : version_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The version to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Version,
+            com.google.cloud.dialogflow.cx.v3beta1.Version.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.VersionOrBuilder>
+        getVersionFieldBuilder() {
+      if (versionBuilder_ == null) {
+        versionBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Version,
+                com.google.cloud.dialogflow.cx.v3beta1.Version.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.VersionOrBuilder>(
+                getVersion(), getParentForChildren(), isClean());
+        version_ = null;
+      }
+      return versionBuilder_;
+    }
+
+    private com.google.protobuf.FieldMask updateMask_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        updateMaskBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated. Currently only `description`
+     * and `display_name` can be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the updateMask field is set.
+     */
+    public boolean hasUpdateMask() {
+      return updateMaskBuilder_ != null || updateMask_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated. Currently only `description`
+     * and `display_name` can be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The updateMask.
+     */
+    public com.google.protobuf.FieldMask getUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      } else {
+        return updateMaskBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated. Currently only `description`
+     * and `display_name` can be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        updateMask_ = value;
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated. Currently only `description`
+     * and `display_name` can be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask.Builder builderForValue) {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = builderForValue.build();
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated. Currently only `description`
+     * and `display_name` can be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (updateMask_ != null) {
+          updateMask_ =
+              com.google.protobuf.FieldMask.newBuilder(updateMask_).mergeFrom(value).buildPartial();
+        } else {
+          updateMask_ = value;
+        }
+        onChanged();
+      } else {
+        updateMaskBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated. Currently only `description`
+     * and `display_name` can be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+        onChanged();
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated. Currently only `description`
+     * and `display_name` can be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.protobuf.FieldMask.Builder getUpdateMaskBuilder() {
+
+      onChanged();
+      return getUpdateMaskFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated. Currently only `description`
+     * and `display_name` can be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+      if (updateMaskBuilder_ != null) {
+        return updateMaskBuilder_.getMessageOrBuilder();
+      } else {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The mask to control which fields get updated. Currently only `description`
+     * and `display_name` can be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        getUpdateMaskFieldBuilder() {
+      if (updateMaskBuilder_ == null) {
+        updateMaskBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.FieldMask,
+                com.google.protobuf.FieldMask.Builder,
+                com.google.protobuf.FieldMaskOrBuilder>(
+                getUpdateMask(), getParentForChildren(), isClean());
+        updateMask_ = null;
+      }
+      return updateMaskBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<UpdateVersionRequest> PARSER =
+      new com.google.protobuf.AbstractParser<UpdateVersionRequest>() {
+        @java.lang.Override
+        public UpdateVersionRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new UpdateVersionRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<UpdateVersionRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<UpdateVersionRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateVersionRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateVersionRequestOrBuilder.java
new file mode 100644
index 000000000..700e4e7cf
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateVersionRequestOrBuilder.java
@@ -0,0 +1,107 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/version.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface UpdateVersionRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.UpdateVersionRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The version to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the version field is set.
+   */
+  boolean hasVersion();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The version to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The version.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Version getVersion();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The version to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.VersionOrBuilder getVersionOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The mask to control which fields get updated. Currently only `description`
+   * and `display_name` can be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the updateMask field is set.
+   */
+  boolean hasUpdateMask();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The mask to control which fields get updated. Currently only `description`
+   * and `display_name` can be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The updateMask.
+   */
+  com.google.protobuf.FieldMask getUpdateMask();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The mask to control which fields get updated. Currently only `description`
+   * and `display_name` can be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateWebhookRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateWebhookRequest.java
new file mode 100644
index 000000000..f1f9b3d16
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateWebhookRequest.java
@@ -0,0 +1,1043 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for [Webhooks.UpdateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.UpdateWebhook].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest}
+ */
+public final class UpdateWebhookRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest)
+    UpdateWebhookRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use UpdateWebhookRequest.newBuilder() to construct.
+  private UpdateWebhookRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private UpdateWebhookRequest() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new UpdateWebhookRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private UpdateWebhookRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder subBuilder = null;
+              if (webhook_ != null) {
+                subBuilder = webhook_.toBuilder();
+              }
+              webhook_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Webhook.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(webhook_);
+                webhook_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 18:
+            {
+              com.google.protobuf.FieldMask.Builder subBuilder = null;
+              if (updateMask_ != null) {
+                subBuilder = updateMask_.toBuilder();
+              }
+              updateMask_ =
+                  input.readMessage(com.google.protobuf.FieldMask.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(updateMask_);
+                updateMask_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateWebhookRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateWebhookRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest.Builder.class);
+  }
+
+  public static final int WEBHOOK_FIELD_NUMBER = 1;
+  private com.google.cloud.dialogflow.cx.v3beta1.Webhook webhook_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The webhook to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the webhook field is set.
+   */
+  @java.lang.Override
+  public boolean hasWebhook() {
+    return webhook_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The webhook to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The webhook.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Webhook getWebhook() {
+    return webhook_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.Webhook.getDefaultInstance()
+        : webhook_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The webhook to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.WebhookOrBuilder getWebhookOrBuilder() {
+    return getWebhook();
+  }
+
+  public static final int UPDATE_MASK_FIELD_NUMBER = 2;
+  private com.google.protobuf.FieldMask updateMask_;
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   *
+   * @return Whether the updateMask field is set.
+   */
+  @java.lang.Override
+  public boolean hasUpdateMask() {
+    return updateMask_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   *
+   * @return The updateMask.
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMask getUpdateMask() {
+    return updateMask_ == null ? com.google.protobuf.FieldMask.getDefaultInstance() : updateMask_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+    return getUpdateMask();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (webhook_ != null) {
+      output.writeMessage(1, getWebhook());
+    }
+    if (updateMask_ != null) {
+      output.writeMessage(2, getUpdateMask());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (webhook_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getWebhook());
+    }
+    if (updateMask_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getUpdateMask());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest) obj;
+
+    if (hasWebhook() != other.hasWebhook()) return false;
+    if (hasWebhook()) {
+      if (!getWebhook().equals(other.getWebhook())) return false;
+    }
+    if (hasUpdateMask() != other.hasUpdateMask()) return false;
+    if (hasUpdateMask()) {
+      if (!getUpdateMask().equals(other.getUpdateMask())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasWebhook()) {
+      hash = (37 * hash) + WEBHOOK_FIELD_NUMBER;
+      hash = (53 * hash) + getWebhook().hashCode();
+    }
+    if (hasUpdateMask()) {
+      hash = (37 * hash) + UPDATE_MASK_FIELD_NUMBER;
+      hash = (53 * hash) + getUpdateMask().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for [Webhooks.UpdateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.UpdateWebhook].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateWebhookRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateWebhookRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (webhookBuilder_ == null) {
+        webhook_ = null;
+      } else {
+        webhook_ = null;
+        webhookBuilder_ = null;
+      }
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateWebhookRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest(this);
+      if (webhookBuilder_ == null) {
+        result.webhook_ = webhook_;
+      } else {
+        result.webhook_ = webhookBuilder_.build();
+      }
+      if (updateMaskBuilder_ == null) {
+        result.updateMask_ = updateMask_;
+      } else {
+        result.updateMask_ = updateMaskBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest.getDefaultInstance())
+        return this;
+      if (other.hasWebhook()) {
+        mergeWebhook(other.getWebhook());
+      }
+      if (other.hasUpdateMask()) {
+        mergeUpdateMask(other.getUpdateMask());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.Webhook webhook_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook,
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookOrBuilder>
+        webhookBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The webhook to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return Whether the webhook field is set.
+     */
+    public boolean hasWebhook() {
+      return webhookBuilder_ != null || webhook_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The webhook to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     *
+     * @return The webhook.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Webhook getWebhook() {
+      if (webhookBuilder_ == null) {
+        return webhook_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Webhook.getDefaultInstance()
+            : webhook_;
+      } else {
+        return webhookBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The webhook to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setWebhook(com.google.cloud.dialogflow.cx.v3beta1.Webhook value) {
+      if (webhookBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        webhook_ = value;
+        onChanged();
+      } else {
+        webhookBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The webhook to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder setWebhook(
+        com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder builderForValue) {
+      if (webhookBuilder_ == null) {
+        webhook_ = builderForValue.build();
+        onChanged();
+      } else {
+        webhookBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The webhook to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder mergeWebhook(com.google.cloud.dialogflow.cx.v3beta1.Webhook value) {
+      if (webhookBuilder_ == null) {
+        if (webhook_ != null) {
+          webhook_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Webhook.newBuilder(webhook_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          webhook_ = value;
+        }
+        onChanged();
+      } else {
+        webhookBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The webhook to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public Builder clearWebhook() {
+      if (webhookBuilder_ == null) {
+        webhook_ = null;
+        onChanged();
+      } else {
+        webhook_ = null;
+        webhookBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The webhook to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder getWebhookBuilder() {
+
+      onChanged();
+      return getWebhookFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The webhook to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookOrBuilder getWebhookOrBuilder() {
+      if (webhookBuilder_ != null) {
+        return webhookBuilder_.getMessageOrBuilder();
+      } else {
+        return webhook_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.Webhook.getDefaultInstance()
+            : webhook_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The webhook to update.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 1 [(.google.api.field_behavior) = REQUIRED];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook,
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookOrBuilder>
+        getWebhookFieldBuilder() {
+      if (webhookBuilder_ == null) {
+        webhookBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Webhook,
+                com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.WebhookOrBuilder>(
+                getWebhook(), getParentForChildren(), isClean());
+        webhook_ = null;
+      }
+      return webhookBuilder_;
+    }
+
+    private com.google.protobuf.FieldMask updateMask_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        updateMaskBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     *
+     * @return Whether the updateMask field is set.
+     */
+    public boolean hasUpdateMask() {
+      return updateMaskBuilder_ != null || updateMask_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     *
+     * @return The updateMask.
+     */
+    public com.google.protobuf.FieldMask getUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      } else {
+        return updateMaskBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        updateMask_ = value;
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask.Builder builderForValue) {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = builderForValue.build();
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public Builder mergeUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (updateMask_ != null) {
+          updateMask_ =
+              com.google.protobuf.FieldMask.newBuilder(updateMask_).mergeFrom(value).buildPartial();
+        } else {
+          updateMask_ = value;
+        }
+        onChanged();
+      } else {
+        updateMaskBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public Builder clearUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+        onChanged();
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public com.google.protobuf.FieldMask.Builder getUpdateMaskBuilder() {
+
+      onChanged();
+      return getUpdateMaskFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+      if (updateMaskBuilder_ != null) {
+        return updateMaskBuilder_.getMessageOrBuilder();
+      } else {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The mask to control which fields get updated. If the mask is not present,
+     * all fields will be updated.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        getUpdateMaskFieldBuilder() {
+      if (updateMaskBuilder_ == null) {
+        updateMaskBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.FieldMask,
+                com.google.protobuf.FieldMask.Builder,
+                com.google.protobuf.FieldMaskOrBuilder>(
+                getUpdateMask(), getParentForChildren(), isClean());
+        updateMask_ = null;
+      }
+      return updateMaskBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<UpdateWebhookRequest> PARSER =
+      new com.google.protobuf.AbstractParser<UpdateWebhookRequest>() {
+        @java.lang.Override
+        public UpdateWebhookRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new UpdateWebhookRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<UpdateWebhookRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<UpdateWebhookRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateWebhookRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateWebhookRequestOrBuilder.java
new file mode 100644
index 000000000..169ad9fd6
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateWebhookRequestOrBuilder.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface UpdateWebhookRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.UpdateWebhookRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The webhook to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return Whether the webhook field is set.
+   */
+  boolean hasWebhook();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The webhook to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   *
+   * @return The webhook.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Webhook getWebhook();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The webhook to update.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Webhook webhook = 1 [(.google.api.field_behavior) = REQUIRED];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.WebhookOrBuilder getWebhookOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   *
+   * @return Whether the updateMask field is set.
+   */
+  boolean hasUpdateMask();
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   *
+   * @return The updateMask.
+   */
+  com.google.protobuf.FieldMask getUpdateMask();
+  /**
+   *
+   *
+   * <pre>
+   * The mask to control which fields get updated. If the mask is not present,
+   * all fields will be updated.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 2;</code>
+   */
+  com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Version.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Version.java
new file mode 100644
index 000000000..f36e7f86d
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Version.java
@@ -0,0 +1,1965 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/version.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Represents a version of a flow.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Version}
+ */
+public final class Version extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.Version)
+    VersionOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use Version.newBuilder() to construct.
+  private Version(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private Version() {
+    name_ = "";
+    displayName_ = "";
+    description_ = "";
+    state_ = 0;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new Version();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private Version(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              displayName_ = s;
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              description_ = s;
+              break;
+            }
+          case 34:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.NluSettings.Builder subBuilder = null;
+              if (nluSettings_ != null) {
+                subBuilder = nluSettings_.toBuilder();
+              }
+              nluSettings_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.NluSettings.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(nluSettings_);
+                nluSettings_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 42:
+            {
+              com.google.protobuf.Timestamp.Builder subBuilder = null;
+              if (createTime_ != null) {
+                subBuilder = createTime_.toBuilder();
+              }
+              createTime_ =
+                  input.readMessage(com.google.protobuf.Timestamp.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(createTime_);
+                createTime_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 48:
+            {
+              int rawValue = input.readEnum();
+
+              state_ = rawValue;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_Version_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_Version_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.Version.class,
+            com.google.cloud.dialogflow.cx.v3beta1.Version.Builder.class);
+  }
+
+  /**
+   *
+   *
+   * <pre>
+   * The state of the version.
+   * </pre>
+   *
+   * Protobuf enum {@code google.cloud.dialogflow.cx.v3beta1.Version.State}
+   */
+  public enum State implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     *
+     *
+     * <pre>
+     * Not specified. This value is not used.
+     * </pre>
+     *
+     * <code>STATE_UNSPECIFIED = 0;</code>
+     */
+    STATE_UNSPECIFIED(0),
+    /**
+     *
+     *
+     * <pre>
+     * Version is not ready to serve (e.g. training is running).
+     * </pre>
+     *
+     * <code>RUNNING = 1;</code>
+     */
+    RUNNING(1),
+    /**
+     *
+     *
+     * <pre>
+     * Training has succeeded and this version is ready to serve.
+     * </pre>
+     *
+     * <code>SUCCEEDED = 2;</code>
+     */
+    SUCCEEDED(2),
+    /**
+     *
+     *
+     * <pre>
+     * Version training failed.
+     * </pre>
+     *
+     * <code>FAILED = 3;</code>
+     */
+    FAILED(3),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     *
+     *
+     * <pre>
+     * Not specified. This value is not used.
+     * </pre>
+     *
+     * <code>STATE_UNSPECIFIED = 0;</code>
+     */
+    public static final int STATE_UNSPECIFIED_VALUE = 0;
+    /**
+     *
+     *
+     * <pre>
+     * Version is not ready to serve (e.g. training is running).
+     * </pre>
+     *
+     * <code>RUNNING = 1;</code>
+     */
+    public static final int RUNNING_VALUE = 1;
+    /**
+     *
+     *
+     * <pre>
+     * Training has succeeded and this version is ready to serve.
+     * </pre>
+     *
+     * <code>SUCCEEDED = 2;</code>
+     */
+    public static final int SUCCEEDED_VALUE = 2;
+    /**
+     *
+     *
+     * <pre>
+     * Version training failed.
+     * </pre>
+     *
+     * <code>FAILED = 3;</code>
+     */
+    public static final int FAILED_VALUE = 3;
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static State valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static State forNumber(int value) {
+      switch (value) {
+        case 0:
+          return STATE_UNSPECIFIED;
+        case 1:
+          return RUNNING;
+        case 2:
+          return SUCCEEDED;
+        case 3:
+          return FAILED;
+        default:
+          return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap<State> internalGetValueMap() {
+      return internalValueMap;
+    }
+
+    private static final com.google.protobuf.Internal.EnumLiteMap<State> internalValueMap =
+        new com.google.protobuf.Internal.EnumLiteMap<State>() {
+          public State findValueByNumber(int number) {
+            return State.forNumber(number);
+          }
+        };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+
+    public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+      return getDescriptor();
+    }
+
+    public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.Version.getDescriptor().getEnumTypes().get(0);
+    }
+
+    private static final State[] VALUES = values();
+
+    public static State valueOf(com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private State(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:google.cloud.dialogflow.cx.v3beta1.Version.State)
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Format: projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;. Version ID is a self-increasing
+   * number generated by Dialogflow upon version creation.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Format: projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;. Version ID is a self-increasing
+   * number generated by Dialogflow upon version creation.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int DISPLAY_NAME_FIELD_NUMBER = 2;
+  private volatile java.lang.Object displayName_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the version. Limit of 64 characters.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The displayName.
+   */
+  @java.lang.Override
+  public java.lang.String getDisplayName() {
+    java.lang.Object ref = displayName_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      displayName_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the version. Limit of 64 characters.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for displayName.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getDisplayNameBytes() {
+    java.lang.Object ref = displayName_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      displayName_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int DESCRIPTION_FIELD_NUMBER = 3;
+  private volatile java.lang.Object description_;
+  /**
+   *
+   *
+   * <pre>
+   * The description of the version. The maximum length is 500 characters. If
+   * exceeded, the request is rejected.
+   * </pre>
+   *
+   * <code>string description = 3;</code>
+   *
+   * @return The description.
+   */
+  @java.lang.Override
+  public java.lang.String getDescription() {
+    java.lang.Object ref = description_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      description_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The description of the version. The maximum length is 500 characters. If
+   * exceeded, the request is rejected.
+   * </pre>
+   *
+   * <code>string description = 3;</code>
+   *
+   * @return The bytes for description.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getDescriptionBytes() {
+    java.lang.Object ref = description_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      description_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int NLU_SETTINGS_FIELD_NUMBER = 4;
+  private com.google.cloud.dialogflow.cx.v3beta1.NluSettings nluSettings_;
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The NLU settings of the flow at version creation.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return Whether the nluSettings field is set.
+   */
+  @java.lang.Override
+  public boolean hasNluSettings() {
+    return nluSettings_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The NLU settings of the flow at version creation.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return The nluSettings.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.NluSettings getNluSettings() {
+    return nluSettings_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.NluSettings.getDefaultInstance()
+        : nluSettings_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The NLU settings of the flow at version creation.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.NluSettingsOrBuilder getNluSettingsOrBuilder() {
+    return getNluSettings();
+  }
+
+  public static final int CREATE_TIME_FIELD_NUMBER = 5;
+  private com.google.protobuf.Timestamp createTime_;
+  /**
+   *
+   *
+   * <pre>
+   * Output only. Create time of the version.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return Whether the createTime field is set.
+   */
+  @java.lang.Override
+  public boolean hasCreateTime() {
+    return createTime_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Output only. Create time of the version.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return The createTime.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Timestamp getCreateTime() {
+    return createTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Output only. Create time of the version.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
+    return getCreateTime();
+  }
+
+  public static final int STATE_FIELD_NUMBER = 6;
+  private int state_;
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The state of this version. This field is read-only and cannot be set by
+   * create and update methods.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Version.State state = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return The enum numeric value on the wire for state.
+   */
+  @java.lang.Override
+  public int getStateValue() {
+    return state_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The state of this version. This field is read-only and cannot be set by
+   * create and update methods.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Version.State state = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return The state.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Version.State getState() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.dialogflow.cx.v3beta1.Version.State result =
+        com.google.cloud.dialogflow.cx.v3beta1.Version.State.valueOf(state_);
+    return result == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.Version.State.UNRECOGNIZED
+        : result;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (!getDisplayNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, displayName_);
+    }
+    if (!getDescriptionBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, description_);
+    }
+    if (nluSettings_ != null) {
+      output.writeMessage(4, getNluSettings());
+    }
+    if (createTime_ != null) {
+      output.writeMessage(5, getCreateTime());
+    }
+    if (state_
+        != com.google.cloud.dialogflow.cx.v3beta1.Version.State.STATE_UNSPECIFIED.getNumber()) {
+      output.writeEnum(6, state_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (!getDisplayNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, displayName_);
+    }
+    if (!getDescriptionBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, description_);
+    }
+    if (nluSettings_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, getNluSettings());
+    }
+    if (createTime_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, getCreateTime());
+    }
+    if (state_
+        != com.google.cloud.dialogflow.cx.v3beta1.Version.State.STATE_UNSPECIFIED.getNumber()) {
+      size += com.google.protobuf.CodedOutputStream.computeEnumSize(6, state_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.Version)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.Version other =
+        (com.google.cloud.dialogflow.cx.v3beta1.Version) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!getDisplayName().equals(other.getDisplayName())) return false;
+    if (!getDescription().equals(other.getDescription())) return false;
+    if (hasNluSettings() != other.hasNluSettings()) return false;
+    if (hasNluSettings()) {
+      if (!getNluSettings().equals(other.getNluSettings())) return false;
+    }
+    if (hasCreateTime() != other.hasCreateTime()) return false;
+    if (hasCreateTime()) {
+      if (!getCreateTime().equals(other.getCreateTime())) return false;
+    }
+    if (state_ != other.state_) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + DISPLAY_NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getDisplayName().hashCode();
+    hash = (37 * hash) + DESCRIPTION_FIELD_NUMBER;
+    hash = (53 * hash) + getDescription().hashCode();
+    if (hasNluSettings()) {
+      hash = (37 * hash) + NLU_SETTINGS_FIELD_NUMBER;
+      hash = (53 * hash) + getNluSettings().hashCode();
+    }
+    if (hasCreateTime()) {
+      hash = (37 * hash) + CREATE_TIME_FIELD_NUMBER;
+      hash = (53 * hash) + getCreateTime().hashCode();
+    }
+    hash = (37 * hash) + STATE_FIELD_NUMBER;
+    hash = (53 * hash) + state_;
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Version parseFrom(java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Version parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Version parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Version parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Version parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Version parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Version parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Version parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Version parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Version parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Version parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Version parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.cx.v3beta1.Version prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents a version of a flow.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Version}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.Version)
+      com.google.cloud.dialogflow.cx.v3beta1.VersionOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Version_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Version_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.Version.class,
+              com.google.cloud.dialogflow.cx.v3beta1.Version.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.Version.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      displayName_ = "";
+
+      description_ = "";
+
+      if (nluSettingsBuilder_ == null) {
+        nluSettings_ = null;
+      } else {
+        nluSettings_ = null;
+        nluSettingsBuilder_ = null;
+      }
+      if (createTimeBuilder_ == null) {
+        createTime_ = null;
+      } else {
+        createTime_ = null;
+        createTimeBuilder_ = null;
+      }
+      state_ = 0;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Version_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Version getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.Version.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Version build() {
+      com.google.cloud.dialogflow.cx.v3beta1.Version result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Version buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.Version result =
+          new com.google.cloud.dialogflow.cx.v3beta1.Version(this);
+      result.name_ = name_;
+      result.displayName_ = displayName_;
+      result.description_ = description_;
+      if (nluSettingsBuilder_ == null) {
+        result.nluSettings_ = nluSettings_;
+      } else {
+        result.nluSettings_ = nluSettingsBuilder_.build();
+      }
+      if (createTimeBuilder_ == null) {
+        result.createTime_ = createTime_;
+      } else {
+        result.createTime_ = createTimeBuilder_.build();
+      }
+      result.state_ = state_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.Version) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.Version) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.Version other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.Version.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getDisplayName().isEmpty()) {
+        displayName_ = other.displayName_;
+        onChanged();
+      }
+      if (!other.getDescription().isEmpty()) {
+        description_ = other.description_;
+        onChanged();
+      }
+      if (other.hasNluSettings()) {
+        mergeNluSettings(other.getNluSettings());
+      }
+      if (other.hasCreateTime()) {
+        mergeCreateTime(other.getCreateTime());
+      }
+      if (other.state_ != 0) {
+        setStateValue(other.getStateValue());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.Version parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.dialogflow.cx.v3beta1.Version) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Format: projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;. Version ID is a self-increasing
+     * number generated by Dialogflow upon version creation.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Format: projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;. Version ID is a self-increasing
+     * number generated by Dialogflow upon version creation.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Format: projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;. Version ID is a self-increasing
+     * number generated by Dialogflow upon version creation.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Format: projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;. Version ID is a self-increasing
+     * number generated by Dialogflow upon version creation.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Format: projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;. Version ID is a self-increasing
+     * number generated by Dialogflow upon version creation.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object displayName_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the version. Limit of 64 characters.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The displayName.
+     */
+    public java.lang.String getDisplayName() {
+      java.lang.Object ref = displayName_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        displayName_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the version. Limit of 64 characters.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for displayName.
+     */
+    public com.google.protobuf.ByteString getDisplayNameBytes() {
+      java.lang.Object ref = displayName_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        displayName_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the version. Limit of 64 characters.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The displayName to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDisplayName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      displayName_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the version. Limit of 64 characters.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearDisplayName() {
+
+      displayName_ = getDefaultInstance().getDisplayName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the version. Limit of 64 characters.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The bytes for displayName to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDisplayNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      displayName_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object description_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The description of the version. The maximum length is 500 characters. If
+     * exceeded, the request is rejected.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     *
+     * @return The description.
+     */
+    public java.lang.String getDescription() {
+      java.lang.Object ref = description_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        description_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The description of the version. The maximum length is 500 characters. If
+     * exceeded, the request is rejected.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     *
+     * @return The bytes for description.
+     */
+    public com.google.protobuf.ByteString getDescriptionBytes() {
+      java.lang.Object ref = description_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        description_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The description of the version. The maximum length is 500 characters. If
+     * exceeded, the request is rejected.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     *
+     * @param value The description to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDescription(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      description_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The description of the version. The maximum length is 500 characters. If
+     * exceeded, the request is rejected.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearDescription() {
+
+      description_ = getDefaultInstance().getDescription();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The description of the version. The maximum length is 500 characters. If
+     * exceeded, the request is rejected.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     *
+     * @param value The bytes for description to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDescriptionBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      description_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.NluSettings nluSettings_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.NluSettings,
+            com.google.cloud.dialogflow.cx.v3beta1.NluSettings.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.NluSettingsOrBuilder>
+        nluSettingsBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The NLU settings of the flow at version creation.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     *
+     * @return Whether the nluSettings field is set.
+     */
+    public boolean hasNluSettings() {
+      return nluSettingsBuilder_ != null || nluSettings_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The NLU settings of the flow at version creation.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     *
+     * @return The nluSettings.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.NluSettings getNluSettings() {
+      if (nluSettingsBuilder_ == null) {
+        return nluSettings_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.NluSettings.getDefaultInstance()
+            : nluSettings_;
+      } else {
+        return nluSettingsBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The NLU settings of the flow at version creation.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public Builder setNluSettings(com.google.cloud.dialogflow.cx.v3beta1.NluSettings value) {
+      if (nluSettingsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        nluSettings_ = value;
+        onChanged();
+      } else {
+        nluSettingsBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The NLU settings of the flow at version creation.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public Builder setNluSettings(
+        com.google.cloud.dialogflow.cx.v3beta1.NluSettings.Builder builderForValue) {
+      if (nluSettingsBuilder_ == null) {
+        nluSettings_ = builderForValue.build();
+        onChanged();
+      } else {
+        nluSettingsBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The NLU settings of the flow at version creation.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public Builder mergeNluSettings(com.google.cloud.dialogflow.cx.v3beta1.NluSettings value) {
+      if (nluSettingsBuilder_ == null) {
+        if (nluSettings_ != null) {
+          nluSettings_ =
+              com.google.cloud.dialogflow.cx.v3beta1.NluSettings.newBuilder(nluSettings_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          nluSettings_ = value;
+        }
+        onChanged();
+      } else {
+        nluSettingsBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The NLU settings of the flow at version creation.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public Builder clearNluSettings() {
+      if (nluSettingsBuilder_ == null) {
+        nluSettings_ = null;
+        onChanged();
+      } else {
+        nluSettings_ = null;
+        nluSettingsBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The NLU settings of the flow at version creation.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.NluSettings.Builder getNluSettingsBuilder() {
+
+      onChanged();
+      return getNluSettingsFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The NLU settings of the flow at version creation.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.NluSettingsOrBuilder getNluSettingsOrBuilder() {
+      if (nluSettingsBuilder_ != null) {
+        return nluSettingsBuilder_.getMessageOrBuilder();
+      } else {
+        return nluSettings_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.NluSettings.getDefaultInstance()
+            : nluSettings_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The NLU settings of the flow at version creation.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.NluSettings,
+            com.google.cloud.dialogflow.cx.v3beta1.NluSettings.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.NluSettingsOrBuilder>
+        getNluSettingsFieldBuilder() {
+      if (nluSettingsBuilder_ == null) {
+        nluSettingsBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.NluSettings,
+                com.google.cloud.dialogflow.cx.v3beta1.NluSettings.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.NluSettingsOrBuilder>(
+                getNluSettings(), getParentForChildren(), isClean());
+        nluSettings_ = null;
+      }
+      return nluSettingsBuilder_;
+    }
+
+    private com.google.protobuf.Timestamp createTime_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Timestamp,
+            com.google.protobuf.Timestamp.Builder,
+            com.google.protobuf.TimestampOrBuilder>
+        createTimeBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Output only. Create time of the version.
+     * </pre>
+     *
+     * <code>
+     * .google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     *
+     * @return Whether the createTime field is set.
+     */
+    public boolean hasCreateTime() {
+      return createTimeBuilder_ != null || createTime_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. Create time of the version.
+     * </pre>
+     *
+     * <code>
+     * .google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     *
+     * @return The createTime.
+     */
+    public com.google.protobuf.Timestamp getCreateTime() {
+      if (createTimeBuilder_ == null) {
+        return createTime_ == null
+            ? com.google.protobuf.Timestamp.getDefaultInstance()
+            : createTime_;
+      } else {
+        return createTimeBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. Create time of the version.
+     * </pre>
+     *
+     * <code>
+     * .google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public Builder setCreateTime(com.google.protobuf.Timestamp value) {
+      if (createTimeBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        createTime_ = value;
+        onChanged();
+      } else {
+        createTimeBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. Create time of the version.
+     * </pre>
+     *
+     * <code>
+     * .google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public Builder setCreateTime(com.google.protobuf.Timestamp.Builder builderForValue) {
+      if (createTimeBuilder_ == null) {
+        createTime_ = builderForValue.build();
+        onChanged();
+      } else {
+        createTimeBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. Create time of the version.
+     * </pre>
+     *
+     * <code>
+     * .google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public Builder mergeCreateTime(com.google.protobuf.Timestamp value) {
+      if (createTimeBuilder_ == null) {
+        if (createTime_ != null) {
+          createTime_ =
+              com.google.protobuf.Timestamp.newBuilder(createTime_).mergeFrom(value).buildPartial();
+        } else {
+          createTime_ = value;
+        }
+        onChanged();
+      } else {
+        createTimeBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. Create time of the version.
+     * </pre>
+     *
+     * <code>
+     * .google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public Builder clearCreateTime() {
+      if (createTimeBuilder_ == null) {
+        createTime_ = null;
+        onChanged();
+      } else {
+        createTime_ = null;
+        createTimeBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. Create time of the version.
+     * </pre>
+     *
+     * <code>
+     * .google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public com.google.protobuf.Timestamp.Builder getCreateTimeBuilder() {
+
+      onChanged();
+      return getCreateTimeFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. Create time of the version.
+     * </pre>
+     *
+     * <code>
+     * .google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
+      if (createTimeBuilder_ != null) {
+        return createTimeBuilder_.getMessageOrBuilder();
+      } else {
+        return createTime_ == null
+            ? com.google.protobuf.Timestamp.getDefaultInstance()
+            : createTime_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. Create time of the version.
+     * </pre>
+     *
+     * <code>
+     * .google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Timestamp,
+            com.google.protobuf.Timestamp.Builder,
+            com.google.protobuf.TimestampOrBuilder>
+        getCreateTimeFieldBuilder() {
+      if (createTimeBuilder_ == null) {
+        createTimeBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.Timestamp,
+                com.google.protobuf.Timestamp.Builder,
+                com.google.protobuf.TimestampOrBuilder>(
+                getCreateTime(), getParentForChildren(), isClean());
+        createTime_ = null;
+      }
+      return createTimeBuilder_;
+    }
+
+    private int state_ = 0;
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The state of this version. This field is read-only and cannot be set by
+     * create and update methods.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version.State state = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     *
+     * @return The enum numeric value on the wire for state.
+     */
+    @java.lang.Override
+    public int getStateValue() {
+      return state_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The state of this version. This field is read-only and cannot be set by
+     * create and update methods.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version.State state = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     *
+     * @param value The enum numeric value on the wire for state to set.
+     * @return This builder for chaining.
+     */
+    public Builder setStateValue(int value) {
+
+      state_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The state of this version. This field is read-only and cannot be set by
+     * create and update methods.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version.State state = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     *
+     * @return The state.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Version.State getState() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.dialogflow.cx.v3beta1.Version.State result =
+          com.google.cloud.dialogflow.cx.v3beta1.Version.State.valueOf(state_);
+      return result == null
+          ? com.google.cloud.dialogflow.cx.v3beta1.Version.State.UNRECOGNIZED
+          : result;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The state of this version. This field is read-only and cannot be set by
+     * create and update methods.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version.State state = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     *
+     * @param value The state to set.
+     * @return This builder for chaining.
+     */
+    public Builder setState(com.google.cloud.dialogflow.cx.v3beta1.Version.State value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      state_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Output only. The state of this version. This field is read-only and cannot be set by
+     * create and update methods.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.Version.State state = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearState() {
+
+      state_ = 0;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.Version)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.Version)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.Version DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.Version();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Version getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<Version> PARSER =
+      new com.google.protobuf.AbstractParser<Version>() {
+        @java.lang.Override
+        public Version parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new Version(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<Version> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<Version> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Version getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VersionName.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VersionName.java
new file mode 100644
index 000000000..1a80539be
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VersionName.java
@@ -0,0 +1,268 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+/** AUTO-GENERATED DOCUMENTATION AND CLASS */
+@javax.annotation.Generated("by GAPIC protoc plugin")
+public class VersionName implements ResourceName {
+
+  private static final PathTemplate PATH_TEMPLATE =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/agents/{agent}/flows/{flow}/versions/{version}");
+
+  private volatile Map<String, String> fieldValuesMap;
+
+  private final String project;
+  private final String location;
+  private final String agent;
+  private final String flow;
+  private final String version;
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public String getAgent() {
+    return agent;
+  }
+
+  public String getFlow() {
+    return flow;
+  }
+
+  public String getVersion() {
+    return version;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  private VersionName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    agent = Preconditions.checkNotNull(builder.getAgent());
+    flow = Preconditions.checkNotNull(builder.getFlow());
+    version = Preconditions.checkNotNull(builder.getVersion());
+  }
+
+  public static VersionName of(
+      String project, String location, String agent, String flow, String version) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setFlow(flow)
+        .setVersion(version)
+        .build();
+  }
+
+  public static String format(
+      String project, String location, String agent, String flow, String version) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setFlow(flow)
+        .setVersion(version)
+        .build()
+        .toString();
+  }
+
+  public static VersionName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    Map<String, String> matchMap =
+        PATH_TEMPLATE.validatedMatch(
+            formattedString, "VersionName.parse: formattedString not in valid format");
+    return of(
+        matchMap.get("project"),
+        matchMap.get("location"),
+        matchMap.get("agent"),
+        matchMap.get("flow"),
+        matchMap.get("version"));
+  }
+
+  public static List<VersionName> parseList(List<String> formattedStrings) {
+    List<VersionName> list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List<String> toStringList(List<VersionName> values) {
+    List<String> list = new ArrayList<String>(values.size());
+    for (VersionName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PATH_TEMPLATE.matches(formattedString);
+  }
+
+  public Map<String, String> getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder<String, String> fieldMapBuilder = ImmutableMap.builder();
+          fieldMapBuilder.put("project", project);
+          fieldMapBuilder.put("location", location);
+          fieldMapBuilder.put("agent", agent);
+          fieldMapBuilder.put("flow", flow);
+          fieldMapBuilder.put("version", version);
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return PATH_TEMPLATE.instantiate(
+        "project", project, "location", location, "agent", agent, "flow", flow, "version", version);
+  }
+
+  /** Builder for VersionName. */
+  public static class Builder {
+
+    private String project;
+    private String location;
+    private String agent;
+    private String flow;
+    private String version;
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getAgent() {
+      return agent;
+    }
+
+    public String getFlow() {
+      return flow;
+    }
+
+    public String getVersion() {
+      return version;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public Builder setAgent(String agent) {
+      this.agent = agent;
+      return this;
+    }
+
+    public Builder setFlow(String flow) {
+      this.flow = flow;
+      return this;
+    }
+
+    public Builder setVersion(String version) {
+      this.version = version;
+      return this;
+    }
+
+    private Builder() {}
+
+    private Builder(VersionName versionName) {
+      project = versionName.project;
+      location = versionName.location;
+      agent = versionName.agent;
+      flow = versionName.flow;
+      version = versionName.version;
+    }
+
+    public VersionName build() {
+      return new VersionName(this);
+    }
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o instanceof VersionName) {
+      VersionName that = (VersionName) o;
+      return (this.project.equals(that.project))
+          && (this.location.equals(that.location))
+          && (this.agent.equals(that.agent))
+          && (this.flow.equals(that.flow))
+          && (this.version.equals(that.version));
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= project.hashCode();
+    h *= 1000003;
+    h ^= location.hashCode();
+    h *= 1000003;
+    h ^= agent.hashCode();
+    h *= 1000003;
+    h ^= flow.hashCode();
+    h *= 1000003;
+    h ^= version.hashCode();
+    return h;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VersionOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VersionOrBuilder.java
new file mode 100644
index 000000000..ea44e274b
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VersionOrBuilder.java
@@ -0,0 +1,216 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/version.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface VersionOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.Version)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Format: projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;. Version ID is a self-increasing
+   * number generated by Dialogflow upon version creation.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Format: projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/versions/&lt;Version ID&gt;. Version ID is a self-increasing
+   * number generated by Dialogflow upon version creation.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the version. Limit of 64 characters.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The displayName.
+   */
+  java.lang.String getDisplayName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the version. Limit of 64 characters.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for displayName.
+   */
+  com.google.protobuf.ByteString getDisplayNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The description of the version. The maximum length is 500 characters. If
+   * exceeded, the request is rejected.
+   * </pre>
+   *
+   * <code>string description = 3;</code>
+   *
+   * @return The description.
+   */
+  java.lang.String getDescription();
+  /**
+   *
+   *
+   * <pre>
+   * The description of the version. The maximum length is 500 characters. If
+   * exceeded, the request is rejected.
+   * </pre>
+   *
+   * <code>string description = 3;</code>
+   *
+   * @return The bytes for description.
+   */
+  com.google.protobuf.ByteString getDescriptionBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The NLU settings of the flow at version creation.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return Whether the nluSettings field is set.
+   */
+  boolean hasNluSettings();
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The NLU settings of the flow at version creation.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return The nluSettings.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.NluSettings getNluSettings();
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The NLU settings of the flow at version creation.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.NluSettings nlu_settings = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.NluSettingsOrBuilder getNluSettingsOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Output only. Create time of the version.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return Whether the createTime field is set.
+   */
+  boolean hasCreateTime();
+  /**
+   *
+   *
+   * <pre>
+   * Output only. Create time of the version.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return The createTime.
+   */
+  com.google.protobuf.Timestamp getCreateTime();
+  /**
+   *
+   *
+   * <pre>
+   * Output only. Create time of the version.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   */
+  com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The state of this version. This field is read-only and cannot be set by
+   * create and update methods.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Version.State state = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return The enum numeric value on the wire for state.
+   */
+  int getStateValue();
+  /**
+   *
+   *
+   * <pre>
+   * Output only. The state of this version. This field is read-only and cannot be set by
+   * create and update methods.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.Version.State state = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * </code>
+   *
+   * @return The state.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Version.State getState();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VersionProto.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VersionProto.java
new file mode 100644
index 000000000..86f16c116
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VersionProto.java
@@ -0,0 +1,272 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/version.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public final class VersionProto {
+  private VersionProto() {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistryLite registry) {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions((com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_CreateVersionOperationMetadata_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_CreateVersionOperationMetadata_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Version_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Version_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListVersionsRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListVersionsRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListVersionsResponse_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListVersionsResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_GetVersionRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_GetVersionRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_CreateVersionRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_CreateVersionRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateVersionRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateVersionRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteVersionRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteVersionRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_LoadVersionRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_LoadVersionRequest_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
+    return descriptor;
+  }
+
+  private static com.google.protobuf.Descriptors.FileDescriptor descriptor;
+
+  static {
+    java.lang.String[] descriptorData = {
+      "\n0google/cloud/dialogflow/cx/v3beta1/ver"
+          + "sion.proto\022\"google.cloud.dialogflow.cx.v"
+          + "3beta1\032\034google/api/annotations.proto\032\027go"
+          + "ogle/api/client.proto\032\037google/api/field_"
+          + "behavior.proto\032\031google/api/resource.prot"
+          + "o\032-google/cloud/dialogflow/cx/v3beta1/fl"
+          + "ow.proto\032#google/longrunning/operations."
+          + "proto\032\033google/protobuf/empty.proto\032 goog"
+          + "le/protobuf/field_mask.proto\032\037google/pro"
+          + "tobuf/timestamp.proto\"Y\n\036CreateVersionOp"
+          + "erationMetadata\0227\n\007version\030\001 \001(\tB&\372A#\n!d"
+          + "ialogflow.googleapis.com/Version\"\330\003\n\007Ver"
+          + "sion\022\014\n\004name\030\001 \001(\t\022\031\n\014display_name\030\002 \001(\t"
+          + "B\003\340A\002\022\023\n\013description\030\003 \001(\t\022J\n\014nlu_settin"
+          + "gs\030\004 \001(\0132/.google.cloud.dialogflow.cx.v3"
+          + "beta1.NluSettingsB\003\340A\003\0224\n\013create_time\030\005 "
+          + "\001(\0132\032.google.protobuf.TimestampB\003\340A\003\022E\n\005"
+          + "state\030\006 \001(\01621.google.cloud.dialogflow.cx"
+          + ".v3beta1.Version.StateB\003\340A\003\"F\n\005State\022\025\n\021"
+          + "STATE_UNSPECIFIED\020\000\022\013\n\007RUNNING\020\001\022\r\n\tSUCC"
+          + "EEDED\020\002\022\n\n\006FAILED\020\003:~\352A{\n!dialogflow.goo"
+          + "gleapis.com/Version\022Vprojects/{project}/"
+          + "locations/{location}/agents/{agent}/flow"
+          + "s/{flow}/versions/{version}\"w\n\023ListVersi"
+          + "onsRequest\0229\n\006parent\030\001 \001(\tB)\340A\002\372A#\022!dial"
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+          + "ze\030\002 \001(\005\022\022\n\npage_token\030\003 \001(\t\"n\n\024ListVers"
+          + "ionsResponse\022=\n\010versions\030\001 \003(\0132+.google."
+          + "cloud.dialogflow.cx.v3beta1.Version\022\027\n\017n"
+          + "ext_page_token\030\002 \001(\t\"L\n\021GetVersionReques"
+          + "t\0227\n\004name\030\001 \001(\tB)\340A\002\372A#\n!dialogflow.goog"
+          + "leapis.com/Version\"\224\001\n\024CreateVersionRequ"
+          + "est\0229\n\006parent\030\001 \001(\tB)\340A\002\372A#\022!dialogflow."
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+          + "(\0132\032.google.protobuf.FieldMaskB\003\340A\002\"O\n\024D"
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+          + "\n!dialogflow.googleapis.com/Version\022&\n\036a"
+          + "llow_override_agent_resources\030\002 \001(\0102\271\013\n\010"
+          + "Versions\022\326\001\n\014ListVersions\0227.google.cloud"
+          + ".dialogflow.cx.v3beta1.ListVersionsReque"
+          + "st\0328.google.cloud.dialogflow.cx.v3beta1."
+          + "ListVersionsResponse\"S\202\323\344\223\002D\022B/v3beta1/{"
+          + "parent=projects/*/locations/*/agents/*/f"
+          + "lows/*}/versions\332A\006parent\022\303\001\n\nGetVersion"
+          + "\0225.google.cloud.dialogflow.cx.v3beta1.Ge"
+          + "tVersionRequest\032+.google.cloud.dialogflo"
+          + "w.cx.v3beta1.Version\"Q\202\323\344\223\002D\022B/v3beta1/{"
+          + "name=projects/*/locations/*/agents/*/flo"
+          + "ws/*/versions/*}\332A\004name\022\373\001\n\rCreateVersio"
+          + "n\0228.google.cloud.dialogflow.cx.v3beta1.C"
+          + "reateVersionRequest\032\035.google.longrunning"
+          + ".Operation\"\220\001\202\323\344\223\002M\"B/v3beta1/{parent=pr"
+          + "ojects/*/locations/*/agents/*/flows/*}/v"
+          + "ersions:\007version\332A\016parent,version\312A)\n\007Ve"
+          + "rsion\022\036CreateVersionOperationMetadata\022\351\001"
+          + "\n\rUpdateVersion\0228.google.cloud.dialogflo"
+          + "w.cx.v3beta1.UpdateVersionRequest\032+.goog"
+          + "le.cloud.dialogflow.cx.v3beta1.Version\"q"
+          + "\202\323\344\223\002U2J/v3beta1/{version.name=projects/"
+          + "*/locations/*/agents/*/flows/*/versions/"
+          + "*}:\007version\332A\023version,update_mask\022\264\001\n\rDe"
+          + "leteVersion\0228.google.cloud.dialogflow.cx"
+          + ".v3beta1.DeleteVersionRequest\032\026.google.p"
+          + "rotobuf.Empty\"Q\202\323\344\223\002D*B/v3beta1/{name=pr"
+          + "ojects/*/locations/*/agents/*/flows/*/ve"
+          + "rsions/*}\332A\004name\022\362\001\n\013LoadVersion\0226.googl"
+          + "e.cloud.dialogflow.cx.v3beta1.LoadVersio"
+          + "nRequest\032\035.google.longrunning.Operation\""
+          + "\213\001\202\323\344\223\002L\"G/v3beta1/{name=projects/*/loca"
+          + "tions/*/agents/*/flows/*/versions/*}:loa"
+          + "d:\001*\332A\004name\312A/\n\025google.protobuf.Empty\022\026g"
+          + "oogle.protobuf.Struct\032x\312A\031dialogflow.goo"
+          + "gleapis.com\322AYhttps://www.googleapis.com"
+          + "/auth/cloud-platform,https://www.googlea"
+          + "pis.com/auth/dialogflowB\253\001\n&com.google.c"
+          + "loud.dialogflow.cx.v3beta1B\014VersionProto"
+          + "P\001ZDgoogle.golang.org/genproto/googleapi"
+          + "s/cloud/dialogflow/cx/v3beta1;cx\370\001\001\242\002\002DF"
+          + "\252\002\"Google.Cloud.Dialogflow.Cx.V3Beta1b\006p"
+          + "roto3"
+    };
+    descriptor =
+        com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
+            descriptorData,
+            new com.google.protobuf.Descriptors.FileDescriptor[] {
+              com.google.api.AnnotationsProto.getDescriptor(),
+              com.google.api.ClientProto.getDescriptor(),
+              com.google.api.FieldBehaviorProto.getDescriptor(),
+              com.google.api.ResourceProto.getDescriptor(),
+              com.google.cloud.dialogflow.cx.v3beta1.FlowProto.getDescriptor(),
+              com.google.longrunning.OperationsProto.getDescriptor(),
+              com.google.protobuf.EmptyProto.getDescriptor(),
+              com.google.protobuf.FieldMaskProto.getDescriptor(),
+              com.google.protobuf.TimestampProto.getDescriptor(),
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_CreateVersionOperationMetadata_descriptor =
+        getDescriptor().getMessageTypes().get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_CreateVersionOperationMetadata_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_CreateVersionOperationMetadata_descriptor,
+            new java.lang.String[] {
+              "Version",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Version_descriptor =
+        getDescriptor().getMessageTypes().get(1);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Version_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_Version_descriptor,
+            new java.lang.String[] {
+              "Name", "DisplayName", "Description", "NluSettings", "CreateTime", "State",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListVersionsRequest_descriptor =
+        getDescriptor().getMessageTypes().get(2);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListVersionsRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ListVersionsRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "PageSize", "PageToken",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListVersionsResponse_descriptor =
+        getDescriptor().getMessageTypes().get(3);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListVersionsResponse_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ListVersionsResponse_descriptor,
+            new java.lang.String[] {
+              "Versions", "NextPageToken",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_GetVersionRequest_descriptor =
+        getDescriptor().getMessageTypes().get(4);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_GetVersionRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_GetVersionRequest_descriptor,
+            new java.lang.String[] {
+              "Name",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_CreateVersionRequest_descriptor =
+        getDescriptor().getMessageTypes().get(5);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_CreateVersionRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_CreateVersionRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "Version",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateVersionRequest_descriptor =
+        getDescriptor().getMessageTypes().get(6);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateVersionRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateVersionRequest_descriptor,
+            new java.lang.String[] {
+              "Version", "UpdateMask",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteVersionRequest_descriptor =
+        getDescriptor().getMessageTypes().get(7);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteVersionRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteVersionRequest_descriptor,
+            new java.lang.String[] {
+              "Name",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_LoadVersionRequest_descriptor =
+        getDescriptor().getMessageTypes().get(8);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_LoadVersionRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_LoadVersionRequest_descriptor,
+            new java.lang.String[] {
+              "Name", "AllowOverrideAgentResources",
+            });
+    com.google.protobuf.ExtensionRegistry registry =
+        com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.ClientProto.defaultHost);
+    registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
+    registry.add(com.google.api.AnnotationsProto.http);
+    registry.add(com.google.api.ClientProto.methodSignature);
+    registry.add(com.google.api.ClientProto.oauthScopes);
+    registry.add(com.google.api.ResourceProto.resource);
+    registry.add(com.google.api.ResourceProto.resourceReference);
+    registry.add(com.google.longrunning.OperationsProto.operationInfo);
+    com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
+        descriptor, registry);
+    com.google.api.AnnotationsProto.getDescriptor();
+    com.google.api.ClientProto.getDescriptor();
+    com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.api.ResourceProto.getDescriptor();
+    com.google.cloud.dialogflow.cx.v3beta1.FlowProto.getDescriptor();
+    com.google.longrunning.OperationsProto.getDescriptor();
+    com.google.protobuf.EmptyProto.getDescriptor();
+    com.google.protobuf.FieldMaskProto.getDescriptor();
+    com.google.protobuf.TimestampProto.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VoiceSelectionParams.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VoiceSelectionParams.java
new file mode 100644
index 000000000..f03e09502
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VoiceSelectionParams.java
@@ -0,0 +1,837 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/audio_config.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Description of which voice to use for speech synthesis.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams}
+ */
+public final class VoiceSelectionParams extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams)
+    VoiceSelectionParamsOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use VoiceSelectionParams.newBuilder() to construct.
+  private VoiceSelectionParams(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private VoiceSelectionParams() {
+    name_ = "";
+    ssmlGender_ = 0;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new VoiceSelectionParams();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private VoiceSelectionParams(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 16:
+            {
+              int rawValue = input.readEnum();
+
+              ssmlGender_ = rawValue;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_VoiceSelectionParams_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_VoiceSelectionParams_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.class,
+            com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * Optional. The name of the voice. If not set, the service will choose a
+   * voice based on the other parameters such as language_code and
+   * [ssml_gender][google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.ssml_gender].
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Optional. The name of the voice. If not set, the service will choose a
+   * voice based on the other parameters such as language_code and
+   * [ssml_gender][google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.ssml_gender].
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int SSML_GENDER_FIELD_NUMBER = 2;
+  private int ssmlGender_;
+  /**
+   *
+   *
+   * <pre>
+   * Optional. The preferred gender of the voice. If not set, the service will
+   * choose a voice based on the other parameters such as language_code and
+   * [name][google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.name]. Note that this is only a preference, not requirement. If a
+   * voice of the appropriate gender is not available, the synthesizer should
+   * substitute a voice with a different gender rather than failing the request.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender ssml_gender = 2;</code>
+   *
+   * @return The enum numeric value on the wire for ssmlGender.
+   */
+  @java.lang.Override
+  public int getSsmlGenderValue() {
+    return ssmlGender_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Optional. The preferred gender of the voice. If not set, the service will
+   * choose a voice based on the other parameters such as language_code and
+   * [name][google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.name]. Note that this is only a preference, not requirement. If a
+   * voice of the appropriate gender is not available, the synthesizer should
+   * substitute a voice with a different gender rather than failing the request.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender ssml_gender = 2;</code>
+   *
+   * @return The ssmlGender.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender getSsmlGender() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender result =
+        com.google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender.valueOf(ssmlGender_);
+    return result == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender.UNRECOGNIZED
+        : result;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (ssmlGender_
+        != com.google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender.SSML_VOICE_GENDER_UNSPECIFIED
+            .getNumber()) {
+      output.writeEnum(2, ssmlGender_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (ssmlGender_
+        != com.google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender.SSML_VOICE_GENDER_UNSPECIFIED
+            .getNumber()) {
+      size += com.google.protobuf.CodedOutputStream.computeEnumSize(2, ssmlGender_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams other =
+        (com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (ssmlGender_ != other.ssmlGender_) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + SSML_GENDER_FIELD_NUMBER;
+    hash = (53 * hash) + ssmlGender_;
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Description of which voice to use for speech synthesis.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams)
+      com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParamsOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_VoiceSelectionParams_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_VoiceSelectionParams_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.class,
+              com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      ssmlGender_ = 0;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.AudioConfigProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_VoiceSelectionParams_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams build() {
+      com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams result =
+          new com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams(this);
+      result.name_ = name_;
+      result.ssmlGender_ = ssmlGender_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (other.ssmlGender_ != 0) {
+        setSsmlGenderValue(other.getSsmlGenderValue());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The name of the voice. If not set, the service will choose a
+     * voice based on the other parameters such as language_code and
+     * [ssml_gender][google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.ssml_gender].
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The name of the voice. If not set, the service will choose a
+     * voice based on the other parameters such as language_code and
+     * [ssml_gender][google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.ssml_gender].
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The name of the voice. If not set, the service will choose a
+     * voice based on the other parameters such as language_code and
+     * [ssml_gender][google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.ssml_gender].
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The name of the voice. If not set, the service will choose a
+     * voice based on the other parameters such as language_code and
+     * [ssml_gender][google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.ssml_gender].
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The name of the voice. If not set, the service will choose a
+     * voice based on the other parameters such as language_code and
+     * [ssml_gender][google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.ssml_gender].
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int ssmlGender_ = 0;
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The preferred gender of the voice. If not set, the service will
+     * choose a voice based on the other parameters such as language_code and
+     * [name][google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.name]. Note that this is only a preference, not requirement. If a
+     * voice of the appropriate gender is not available, the synthesizer should
+     * substitute a voice with a different gender rather than failing the request.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender ssml_gender = 2;</code>
+     *
+     * @return The enum numeric value on the wire for ssmlGender.
+     */
+    @java.lang.Override
+    public int getSsmlGenderValue() {
+      return ssmlGender_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The preferred gender of the voice. If not set, the service will
+     * choose a voice based on the other parameters such as language_code and
+     * [name][google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.name]. Note that this is only a preference, not requirement. If a
+     * voice of the appropriate gender is not available, the synthesizer should
+     * substitute a voice with a different gender rather than failing the request.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender ssml_gender = 2;</code>
+     *
+     * @param value The enum numeric value on the wire for ssmlGender to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSsmlGenderValue(int value) {
+
+      ssmlGender_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The preferred gender of the voice. If not set, the service will
+     * choose a voice based on the other parameters such as language_code and
+     * [name][google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.name]. Note that this is only a preference, not requirement. If a
+     * voice of the appropriate gender is not available, the synthesizer should
+     * substitute a voice with a different gender rather than failing the request.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender ssml_gender = 2;</code>
+     *
+     * @return The ssmlGender.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender getSsmlGender() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender result =
+          com.google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender.valueOf(ssmlGender_);
+      return result == null
+          ? com.google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender.UNRECOGNIZED
+          : result;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The preferred gender of the voice. If not set, the service will
+     * choose a voice based on the other parameters such as language_code and
+     * [name][google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.name]. Note that this is only a preference, not requirement. If a
+     * voice of the appropriate gender is not available, the synthesizer should
+     * substitute a voice with a different gender rather than failing the request.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender ssml_gender = 2;</code>
+     *
+     * @param value The ssmlGender to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSsmlGender(com.google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      ssmlGender_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Optional. The preferred gender of the voice. If not set, the service will
+     * choose a voice based on the other parameters such as language_code and
+     * [name][google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.name]. Note that this is only a preference, not requirement. If a
+     * voice of the appropriate gender is not available, the synthesizer should
+     * substitute a voice with a different gender rather than failing the request.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender ssml_gender = 2;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearSsmlGender() {
+
+      ssmlGender_ = 0;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<VoiceSelectionParams> PARSER =
+      new com.google.protobuf.AbstractParser<VoiceSelectionParams>() {
+        @java.lang.Override
+        public VoiceSelectionParams parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new VoiceSelectionParams(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<VoiceSelectionParams> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<VoiceSelectionParams> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VoiceSelectionParamsOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VoiceSelectionParamsOrBuilder.java
new file mode 100644
index 000000000..4ab2d9bc3
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/VoiceSelectionParamsOrBuilder.java
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/audio_config.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface VoiceSelectionParamsOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Optional. The name of the voice. If not set, the service will choose a
+   * voice based on the other parameters such as language_code and
+   * [ssml_gender][google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.ssml_gender].
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * Optional. The name of the voice. If not set, the service will choose a
+   * voice based on the other parameters such as language_code and
+   * [ssml_gender][google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.ssml_gender].
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Optional. The preferred gender of the voice. If not set, the service will
+   * choose a voice based on the other parameters such as language_code and
+   * [name][google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.name]. Note that this is only a preference, not requirement. If a
+   * voice of the appropriate gender is not available, the synthesizer should
+   * substitute a voice with a different gender rather than failing the request.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender ssml_gender = 2;</code>
+   *
+   * @return The enum numeric value on the wire for ssmlGender.
+   */
+  int getSsmlGenderValue();
+  /**
+   *
+   *
+   * <pre>
+   * Optional. The preferred gender of the voice. If not set, the service will
+   * choose a voice based on the other parameters such as language_code and
+   * [name][google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.name]. Note that this is only a preference, not requirement. If a
+   * voice of the appropriate gender is not available, the synthesizer should
+   * substitute a voice with a different gender rather than failing the request.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender ssml_gender = 2;</code>
+   *
+   * @return The ssmlGender.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.SsmlVoiceGender getSsmlGender();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Webhook.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Webhook.java
new file mode 100644
index 000000000..ca9061ccd
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Webhook.java
@@ -0,0 +1,3136 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * Webhooks host the developer's business logic. During a session, webhooks
+ * allow the developer to use the data extracted by Dialogflow's natural
+ * language processing to generate dynamic responses, validate collected data,
+ * or trigger actions on the backend.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Webhook}
+ */
+public final class Webhook extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.Webhook)
+    WebhookOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use Webhook.newBuilder() to construct.
+  private Webhook(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private Webhook() {
+    name_ = "";
+    displayName_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new Webhook();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private Webhook(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              displayName_ = s;
+              break;
+            }
+          case 34:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService.Builder subBuilder =
+                  null;
+              if (webhookCase_ == 4) {
+                subBuilder =
+                    ((com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService) webhook_)
+                        .toBuilder();
+              }
+              webhook_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(
+                    (com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService) webhook_);
+                webhook_ = subBuilder.buildPartial();
+              }
+              webhookCase_ = 4;
+              break;
+            }
+          case 40:
+            {
+              disabled_ = input.readBool();
+              break;
+            }
+          case 50:
+            {
+              com.google.protobuf.Duration.Builder subBuilder = null;
+              if (timeout_ != null) {
+                subBuilder = timeout_.toBuilder();
+              }
+              timeout_ =
+                  input.readMessage(com.google.protobuf.Duration.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(timeout_);
+                timeout_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook.class,
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder.class);
+  }
+
+  public interface GenericWebServiceOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * <pre>
+     * Required. The webhook URI for receiving POST requests. It must use https protocol.
+     * </pre>
+     *
+     * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The uri.
+     */
+    java.lang.String getUri();
+    /**
+     *
+     *
+     * <pre>
+     * Required. The webhook URI for receiving POST requests. It must use https protocol.
+     * </pre>
+     *
+     * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for uri.
+     */
+    com.google.protobuf.ByteString getUriBytes();
+
+    /**
+     *
+     *
+     * <pre>
+     * The user name for HTTP Basic authentication.
+     * </pre>
+     *
+     * <code>string username = 2 [deprecated = true];</code>
+     *
+     * @return The username.
+     */
+    @java.lang.Deprecated
+    java.lang.String getUsername();
+    /**
+     *
+     *
+     * <pre>
+     * The user name for HTTP Basic authentication.
+     * </pre>
+     *
+     * <code>string username = 2 [deprecated = true];</code>
+     *
+     * @return The bytes for username.
+     */
+    @java.lang.Deprecated
+    com.google.protobuf.ByteString getUsernameBytes();
+
+    /**
+     *
+     *
+     * <pre>
+     * The password for HTTP Basic authentication.
+     * </pre>
+     *
+     * <code>string password = 3 [deprecated = true];</code>
+     *
+     * @return The password.
+     */
+    @java.lang.Deprecated
+    java.lang.String getPassword();
+    /**
+     *
+     *
+     * <pre>
+     * The password for HTTP Basic authentication.
+     * </pre>
+     *
+     * <code>string password = 3 [deprecated = true];</code>
+     *
+     * @return The bytes for password.
+     */
+    @java.lang.Deprecated
+    com.google.protobuf.ByteString getPasswordBytes();
+
+    /**
+     *
+     *
+     * <pre>
+     * The HTTP request headers to send together with webhook
+     * requests.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; request_headers = 4;</code>
+     */
+    int getRequestHeadersCount();
+    /**
+     *
+     *
+     * <pre>
+     * The HTTP request headers to send together with webhook
+     * requests.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; request_headers = 4;</code>
+     */
+    boolean containsRequestHeaders(java.lang.String key);
+    /** Use {@link #getRequestHeadersMap()} instead. */
+    @java.lang.Deprecated
+    java.util.Map<java.lang.String, java.lang.String> getRequestHeaders();
+    /**
+     *
+     *
+     * <pre>
+     * The HTTP request headers to send together with webhook
+     * requests.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; request_headers = 4;</code>
+     */
+    java.util.Map<java.lang.String, java.lang.String> getRequestHeadersMap();
+    /**
+     *
+     *
+     * <pre>
+     * The HTTP request headers to send together with webhook
+     * requests.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; request_headers = 4;</code>
+     */
+    java.lang.String getRequestHeadersOrDefault(
+        java.lang.String key, java.lang.String defaultValue);
+    /**
+     *
+     *
+     * <pre>
+     * The HTTP request headers to send together with webhook
+     * requests.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; request_headers = 4;</code>
+     */
+    java.lang.String getRequestHeadersOrThrow(java.lang.String key);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents configuration for a generic web service.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService}
+   */
+  public static final class GenericWebService extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService)
+      GenericWebServiceOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use GenericWebService.newBuilder() to construct.
+    private GenericWebService(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+
+    private GenericWebService() {
+      uri_ = "";
+      username_ = "";
+      password_ = "";
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new GenericWebService();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private GenericWebService(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      int mutable_bitField0_ = 0;
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+
+                uri_ = s;
+                break;
+              }
+            case 18:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+
+                username_ = s;
+                break;
+              }
+            case 26:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+
+                password_ = s;
+                break;
+              }
+            case 34:
+              {
+                if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                  requestHeaders_ =
+                      com.google.protobuf.MapField.newMapField(
+                          RequestHeadersDefaultEntryHolder.defaultEntry);
+                  mutable_bitField0_ |= 0x00000001;
+                }
+                com.google.protobuf.MapEntry<java.lang.String, java.lang.String> requestHeaders__ =
+                    input.readMessage(
+                        RequestHeadersDefaultEntryHolder.defaultEntry.getParserForType(),
+                        extensionRegistry);
+                requestHeaders_
+                    .getMutableMap()
+                    .put(requestHeaders__.getKey(), requestHeaders__.getValue());
+                break;
+              }
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_GenericWebService_descriptor;
+    }
+
+    @SuppressWarnings({"rawtypes"})
+    @java.lang.Override
+    protected com.google.protobuf.MapField internalGetMapField(int number) {
+      switch (number) {
+        case 4:
+          return internalGetRequestHeaders();
+        default:
+          throw new RuntimeException("Invalid map field number: " + number);
+      }
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_GenericWebService_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService.class,
+              com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService.Builder.class);
+    }
+
+    public static final int URI_FIELD_NUMBER = 1;
+    private volatile java.lang.Object uri_;
+    /**
+     *
+     *
+     * <pre>
+     * Required. The webhook URI for receiving POST requests. It must use https protocol.
+     * </pre>
+     *
+     * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The uri.
+     */
+    @java.lang.Override
+    public java.lang.String getUri() {
+      java.lang.Object ref = uri_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        uri_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The webhook URI for receiving POST requests. It must use https protocol.
+     * </pre>
+     *
+     * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for uri.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getUriBytes() {
+      java.lang.Object ref = uri_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        uri_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    public static final int USERNAME_FIELD_NUMBER = 2;
+    private volatile java.lang.Object username_;
+    /**
+     *
+     *
+     * <pre>
+     * The user name for HTTP Basic authentication.
+     * </pre>
+     *
+     * <code>string username = 2 [deprecated = true];</code>
+     *
+     * @return The username.
+     */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public java.lang.String getUsername() {
+      java.lang.Object ref = username_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        username_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The user name for HTTP Basic authentication.
+     * </pre>
+     *
+     * <code>string username = 2 [deprecated = true];</code>
+     *
+     * @return The bytes for username.
+     */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public com.google.protobuf.ByteString getUsernameBytes() {
+      java.lang.Object ref = username_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        username_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    public static final int PASSWORD_FIELD_NUMBER = 3;
+    private volatile java.lang.Object password_;
+    /**
+     *
+     *
+     * <pre>
+     * The password for HTTP Basic authentication.
+     * </pre>
+     *
+     * <code>string password = 3 [deprecated = true];</code>
+     *
+     * @return The password.
+     */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public java.lang.String getPassword() {
+      java.lang.Object ref = password_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        password_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The password for HTTP Basic authentication.
+     * </pre>
+     *
+     * <code>string password = 3 [deprecated = true];</code>
+     *
+     * @return The bytes for password.
+     */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public com.google.protobuf.ByteString getPasswordBytes() {
+      java.lang.Object ref = password_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        password_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    public static final int REQUEST_HEADERS_FIELD_NUMBER = 4;
+
+    private static final class RequestHeadersDefaultEntryHolder {
+      static final com.google.protobuf.MapEntry<java.lang.String, java.lang.String> defaultEntry =
+          com.google.protobuf.MapEntry.<java.lang.String, java.lang.String>newDefaultInstance(
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+                  .internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_GenericWebService_RequestHeadersEntry_descriptor,
+              com.google.protobuf.WireFormat.FieldType.STRING,
+              "",
+              com.google.protobuf.WireFormat.FieldType.STRING,
+              "");
+    }
+
+    private com.google.protobuf.MapField<java.lang.String, java.lang.String> requestHeaders_;
+
+    private com.google.protobuf.MapField<java.lang.String, java.lang.String>
+        internalGetRequestHeaders() {
+      if (requestHeaders_ == null) {
+        return com.google.protobuf.MapField.emptyMapField(
+            RequestHeadersDefaultEntryHolder.defaultEntry);
+      }
+      return requestHeaders_;
+    }
+
+    public int getRequestHeadersCount() {
+      return internalGetRequestHeaders().getMap().size();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The HTTP request headers to send together with webhook
+     * requests.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; request_headers = 4;</code>
+     */
+    @java.lang.Override
+    public boolean containsRequestHeaders(java.lang.String key) {
+      if (key == null) {
+        throw new java.lang.NullPointerException();
+      }
+      return internalGetRequestHeaders().getMap().containsKey(key);
+    }
+    /** Use {@link #getRequestHeadersMap()} instead. */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public java.util.Map<java.lang.String, java.lang.String> getRequestHeaders() {
+      return getRequestHeadersMap();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The HTTP request headers to send together with webhook
+     * requests.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; request_headers = 4;</code>
+     */
+    @java.lang.Override
+    public java.util.Map<java.lang.String, java.lang.String> getRequestHeadersMap() {
+      return internalGetRequestHeaders().getMap();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The HTTP request headers to send together with webhook
+     * requests.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; request_headers = 4;</code>
+     */
+    @java.lang.Override
+    public java.lang.String getRequestHeadersOrDefault(
+        java.lang.String key, java.lang.String defaultValue) {
+      if (key == null) {
+        throw new java.lang.NullPointerException();
+      }
+      java.util.Map<java.lang.String, java.lang.String> map = internalGetRequestHeaders().getMap();
+      return map.containsKey(key) ? map.get(key) : defaultValue;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The HTTP request headers to send together with webhook
+     * requests.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; request_headers = 4;</code>
+     */
+    @java.lang.Override
+    public java.lang.String getRequestHeadersOrThrow(java.lang.String key) {
+      if (key == null) {
+        throw new java.lang.NullPointerException();
+      }
+      java.util.Map<java.lang.String, java.lang.String> map = internalGetRequestHeaders().getMap();
+      if (!map.containsKey(key)) {
+        throw new java.lang.IllegalArgumentException();
+      }
+      return map.get(key);
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (!getUriBytes().isEmpty()) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, uri_);
+      }
+      if (!getUsernameBytes().isEmpty()) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 2, username_);
+      }
+      if (!getPasswordBytes().isEmpty()) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 3, password_);
+      }
+      com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
+          output, internalGetRequestHeaders(), RequestHeadersDefaultEntryHolder.defaultEntry, 4);
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (!getUriBytes().isEmpty()) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, uri_);
+      }
+      if (!getUsernameBytes().isEmpty()) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, username_);
+      }
+      if (!getPasswordBytes().isEmpty()) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, password_);
+      }
+      for (java.util.Map.Entry<java.lang.String, java.lang.String> entry :
+          internalGetRequestHeaders().getMap().entrySet()) {
+        com.google.protobuf.MapEntry<java.lang.String, java.lang.String> requestHeaders__ =
+            RequestHeadersDefaultEntryHolder.defaultEntry
+                .newBuilderForType()
+                .setKey(entry.getKey())
+                .setValue(entry.getValue())
+                .build();
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, requestHeaders__);
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService other =
+          (com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService) obj;
+
+      if (!getUri().equals(other.getUri())) return false;
+      if (!getUsername().equals(other.getUsername())) return false;
+      if (!getPassword().equals(other.getPassword())) return false;
+      if (!internalGetRequestHeaders().equals(other.internalGetRequestHeaders())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + URI_FIELD_NUMBER;
+      hash = (53 * hash) + getUri().hashCode();
+      hash = (37 * hash) + USERNAME_FIELD_NUMBER;
+      hash = (53 * hash) + getUsername().hashCode();
+      hash = (37 * hash) + PASSWORD_FIELD_NUMBER;
+      hash = (53 * hash) + getPassword().hashCode();
+      if (!internalGetRequestHeaders().getMap().isEmpty()) {
+        hash = (37 * hash) + REQUEST_HEADERS_FIELD_NUMBER;
+        hash = (53 * hash) + internalGetRequestHeaders().hashCode();
+      }
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService parseFrom(
+        byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents configuration for a generic web service.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService)
+        com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebServiceOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_GenericWebService_descriptor;
+      }
+
+      @SuppressWarnings({"rawtypes"})
+      protected com.google.protobuf.MapField internalGetMapField(int number) {
+        switch (number) {
+          case 4:
+            return internalGetRequestHeaders();
+          default:
+            throw new RuntimeException("Invalid map field number: " + number);
+        }
+      }
+
+      @SuppressWarnings({"rawtypes"})
+      protected com.google.protobuf.MapField internalGetMutableMapField(int number) {
+        switch (number) {
+          case 4:
+            return internalGetMutableRequestHeaders();
+          default:
+            throw new RuntimeException("Invalid map field number: " + number);
+        }
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_GenericWebService_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService.class,
+                com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService.Builder.class);
+      }
+
+      // Construct using
+      // com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        uri_ = "";
+
+        username_ = "";
+
+        password_ = "";
+
+        internalGetMutableRequestHeaders().clear();
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_GenericWebService_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService
+          getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService
+            .getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService build() {
+        com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService buildPartial() {
+        com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService result =
+            new com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService(this);
+        int from_bitField0_ = bitField0_;
+        result.uri_ = uri_;
+        result.username_ = username_;
+        result.password_ = password_;
+        result.requestHeaders_ = internalGetRequestHeaders();
+        result.requestHeaders_.makeImmutable();
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService) {
+          return mergeFrom(
+              (com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService other) {
+        if (other
+            == com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService
+                .getDefaultInstance()) return this;
+        if (!other.getUri().isEmpty()) {
+          uri_ = other.uri_;
+          onChanged();
+        }
+        if (!other.getUsername().isEmpty()) {
+          username_ = other.username_;
+          onChanged();
+        }
+        if (!other.getPassword().isEmpty()) {
+          password_ = other.password_;
+          onChanged();
+        }
+        internalGetMutableRequestHeaders().mergeFrom(other.internalGetRequestHeaders());
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService)
+                  e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private int bitField0_;
+
+      private java.lang.Object uri_ = "";
+      /**
+       *
+       *
+       * <pre>
+       * Required. The webhook URI for receiving POST requests. It must use https protocol.
+       * </pre>
+       *
+       * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return The uri.
+       */
+      public java.lang.String getUri() {
+        java.lang.Object ref = uri_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          uri_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The webhook URI for receiving POST requests. It must use https protocol.
+       * </pre>
+       *
+       * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return The bytes for uri.
+       */
+      public com.google.protobuf.ByteString getUriBytes() {
+        java.lang.Object ref = uri_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          uri_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The webhook URI for receiving POST requests. It must use https protocol.
+       * </pre>
+       *
+       * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param value The uri to set.
+       * @return This builder for chaining.
+       */
+      public Builder setUri(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+
+        uri_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The webhook URI for receiving POST requests. It must use https protocol.
+       * </pre>
+       *
+       * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearUri() {
+
+        uri_ = getDefaultInstance().getUri();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Required. The webhook URI for receiving POST requests. It must use https protocol.
+       * </pre>
+       *
+       * <code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+       *
+       * @param value The bytes for uri to set.
+       * @return This builder for chaining.
+       */
+      public Builder setUriBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+
+        uri_ = value;
+        onChanged();
+        return this;
+      }
+
+      private java.lang.Object username_ = "";
+      /**
+       *
+       *
+       * <pre>
+       * The user name for HTTP Basic authentication.
+       * </pre>
+       *
+       * <code>string username = 2 [deprecated = true];</code>
+       *
+       * @return The username.
+       */
+      @java.lang.Deprecated
+      public java.lang.String getUsername() {
+        java.lang.Object ref = username_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          username_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The user name for HTTP Basic authentication.
+       * </pre>
+       *
+       * <code>string username = 2 [deprecated = true];</code>
+       *
+       * @return The bytes for username.
+       */
+      @java.lang.Deprecated
+      public com.google.protobuf.ByteString getUsernameBytes() {
+        java.lang.Object ref = username_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          username_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The user name for HTTP Basic authentication.
+       * </pre>
+       *
+       * <code>string username = 2 [deprecated = true];</code>
+       *
+       * @param value The username to set.
+       * @return This builder for chaining.
+       */
+      @java.lang.Deprecated
+      public Builder setUsername(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+
+        username_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The user name for HTTP Basic authentication.
+       * </pre>
+       *
+       * <code>string username = 2 [deprecated = true];</code>
+       *
+       * @return This builder for chaining.
+       */
+      @java.lang.Deprecated
+      public Builder clearUsername() {
+
+        username_ = getDefaultInstance().getUsername();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The user name for HTTP Basic authentication.
+       * </pre>
+       *
+       * <code>string username = 2 [deprecated = true];</code>
+       *
+       * @param value The bytes for username to set.
+       * @return This builder for chaining.
+       */
+      @java.lang.Deprecated
+      public Builder setUsernameBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+
+        username_ = value;
+        onChanged();
+        return this;
+      }
+
+      private java.lang.Object password_ = "";
+      /**
+       *
+       *
+       * <pre>
+       * The password for HTTP Basic authentication.
+       * </pre>
+       *
+       * <code>string password = 3 [deprecated = true];</code>
+       *
+       * @return The password.
+       */
+      @java.lang.Deprecated
+      public java.lang.String getPassword() {
+        java.lang.Object ref = password_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          password_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The password for HTTP Basic authentication.
+       * </pre>
+       *
+       * <code>string password = 3 [deprecated = true];</code>
+       *
+       * @return The bytes for password.
+       */
+      @java.lang.Deprecated
+      public com.google.protobuf.ByteString getPasswordBytes() {
+        java.lang.Object ref = password_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          password_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The password for HTTP Basic authentication.
+       * </pre>
+       *
+       * <code>string password = 3 [deprecated = true];</code>
+       *
+       * @param value The password to set.
+       * @return This builder for chaining.
+       */
+      @java.lang.Deprecated
+      public Builder setPassword(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+
+        password_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The password for HTTP Basic authentication.
+       * </pre>
+       *
+       * <code>string password = 3 [deprecated = true];</code>
+       *
+       * @return This builder for chaining.
+       */
+      @java.lang.Deprecated
+      public Builder clearPassword() {
+
+        password_ = getDefaultInstance().getPassword();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The password for HTTP Basic authentication.
+       * </pre>
+       *
+       * <code>string password = 3 [deprecated = true];</code>
+       *
+       * @param value The bytes for password to set.
+       * @return This builder for chaining.
+       */
+      @java.lang.Deprecated
+      public Builder setPasswordBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+
+        password_ = value;
+        onChanged();
+        return this;
+      }
+
+      private com.google.protobuf.MapField<java.lang.String, java.lang.String> requestHeaders_;
+
+      private com.google.protobuf.MapField<java.lang.String, java.lang.String>
+          internalGetRequestHeaders() {
+        if (requestHeaders_ == null) {
+          return com.google.protobuf.MapField.emptyMapField(
+              RequestHeadersDefaultEntryHolder.defaultEntry);
+        }
+        return requestHeaders_;
+      }
+
+      private com.google.protobuf.MapField<java.lang.String, java.lang.String>
+          internalGetMutableRequestHeaders() {
+        onChanged();
+        ;
+        if (requestHeaders_ == null) {
+          requestHeaders_ =
+              com.google.protobuf.MapField.newMapField(
+                  RequestHeadersDefaultEntryHolder.defaultEntry);
+        }
+        if (!requestHeaders_.isMutable()) {
+          requestHeaders_ = requestHeaders_.copy();
+        }
+        return requestHeaders_;
+      }
+
+      public int getRequestHeadersCount() {
+        return internalGetRequestHeaders().getMap().size();
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The HTTP request headers to send together with webhook
+       * requests.
+       * </pre>
+       *
+       * <code>map&lt;string, string&gt; request_headers = 4;</code>
+       */
+      @java.lang.Override
+      public boolean containsRequestHeaders(java.lang.String key) {
+        if (key == null) {
+          throw new java.lang.NullPointerException();
+        }
+        return internalGetRequestHeaders().getMap().containsKey(key);
+      }
+      /** Use {@link #getRequestHeadersMap()} instead. */
+      @java.lang.Override
+      @java.lang.Deprecated
+      public java.util.Map<java.lang.String, java.lang.String> getRequestHeaders() {
+        return getRequestHeadersMap();
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The HTTP request headers to send together with webhook
+       * requests.
+       * </pre>
+       *
+       * <code>map&lt;string, string&gt; request_headers = 4;</code>
+       */
+      @java.lang.Override
+      public java.util.Map<java.lang.String, java.lang.String> getRequestHeadersMap() {
+        return internalGetRequestHeaders().getMap();
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The HTTP request headers to send together with webhook
+       * requests.
+       * </pre>
+       *
+       * <code>map&lt;string, string&gt; request_headers = 4;</code>
+       */
+      @java.lang.Override
+      public java.lang.String getRequestHeadersOrDefault(
+          java.lang.String key, java.lang.String defaultValue) {
+        if (key == null) {
+          throw new java.lang.NullPointerException();
+        }
+        java.util.Map<java.lang.String, java.lang.String> map =
+            internalGetRequestHeaders().getMap();
+        return map.containsKey(key) ? map.get(key) : defaultValue;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The HTTP request headers to send together with webhook
+       * requests.
+       * </pre>
+       *
+       * <code>map&lt;string, string&gt; request_headers = 4;</code>
+       */
+      @java.lang.Override
+      public java.lang.String getRequestHeadersOrThrow(java.lang.String key) {
+        if (key == null) {
+          throw new java.lang.NullPointerException();
+        }
+        java.util.Map<java.lang.String, java.lang.String> map =
+            internalGetRequestHeaders().getMap();
+        if (!map.containsKey(key)) {
+          throw new java.lang.IllegalArgumentException();
+        }
+        return map.get(key);
+      }
+
+      public Builder clearRequestHeaders() {
+        internalGetMutableRequestHeaders().getMutableMap().clear();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The HTTP request headers to send together with webhook
+       * requests.
+       * </pre>
+       *
+       * <code>map&lt;string, string&gt; request_headers = 4;</code>
+       */
+      public Builder removeRequestHeaders(java.lang.String key) {
+        if (key == null) {
+          throw new java.lang.NullPointerException();
+        }
+        internalGetMutableRequestHeaders().getMutableMap().remove(key);
+        return this;
+      }
+      /** Use alternate mutation accessors instead. */
+      @java.lang.Deprecated
+      public java.util.Map<java.lang.String, java.lang.String> getMutableRequestHeaders() {
+        return internalGetMutableRequestHeaders().getMutableMap();
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The HTTP request headers to send together with webhook
+       * requests.
+       * </pre>
+       *
+       * <code>map&lt;string, string&gt; request_headers = 4;</code>
+       */
+      public Builder putRequestHeaders(java.lang.String key, java.lang.String value) {
+        if (key == null) {
+          throw new java.lang.NullPointerException();
+        }
+        if (value == null) {
+          throw new java.lang.NullPointerException();
+        }
+        internalGetMutableRequestHeaders().getMutableMap().put(key, value);
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The HTTP request headers to send together with webhook
+       * requests.
+       * </pre>
+       *
+       * <code>map&lt;string, string&gt; request_headers = 4;</code>
+       */
+      public Builder putAllRequestHeaders(
+          java.util.Map<java.lang.String, java.lang.String> values) {
+        internalGetMutableRequestHeaders().getMutableMap().putAll(values);
+        return this;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService)
+    private static final com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService();
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<GenericWebService> PARSER =
+        new com.google.protobuf.AbstractParser<GenericWebService>() {
+          @java.lang.Override
+          public GenericWebService parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new GenericWebService(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser<GenericWebService> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<GenericWebService> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  private int webhookCase_ = 0;
+  private java.lang.Object webhook_;
+
+  public enum WebhookCase
+      implements
+          com.google.protobuf.Internal.EnumLite,
+          com.google.protobuf.AbstractMessage.InternalOneOfEnum {
+    GENERIC_WEB_SERVICE(4),
+    WEBHOOK_NOT_SET(0);
+    private final int value;
+
+    private WebhookCase(int value) {
+      this.value = value;
+    }
+    /**
+     * @param value The number of the enum to look for.
+     * @return The enum associated with the given number.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static WebhookCase valueOf(int value) {
+      return forNumber(value);
+    }
+
+    public static WebhookCase forNumber(int value) {
+      switch (value) {
+        case 4:
+          return GENERIC_WEB_SERVICE;
+        case 0:
+          return WEBHOOK_NOT_SET;
+        default:
+          return null;
+      }
+    }
+
+    public int getNumber() {
+      return this.value;
+    }
+  };
+
+  public WebhookCase getWebhookCase() {
+    return WebhookCase.forNumber(webhookCase_);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the webhook.
+   * Required for the [Webhooks.UpdateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.UpdateWebhook] method.
+   * [Webhooks.CreateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.CreateWebhook] populates the name automatically.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the webhook.
+   * Required for the [Webhooks.UpdateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.UpdateWebhook] method.
+   * [Webhooks.CreateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.CreateWebhook] populates the name automatically.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int DISPLAY_NAME_FIELD_NUMBER = 2;
+  private volatile java.lang.Object displayName_;
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the webhook, unique within the agent.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The displayName.
+   */
+  @java.lang.Override
+  public java.lang.String getDisplayName() {
+    java.lang.Object ref = displayName_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      displayName_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the webhook, unique within the agent.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for displayName.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getDisplayNameBytes() {
+    java.lang.Object ref = displayName_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      displayName_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int GENERIC_WEB_SERVICE_FIELD_NUMBER = 4;
+  /**
+   *
+   *
+   * <pre>
+   * Configuration for a generic web service.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService generic_web_service = 4;
+   * </code>
+   *
+   * @return Whether the genericWebService field is set.
+   */
+  @java.lang.Override
+  public boolean hasGenericWebService() {
+    return webhookCase_ == 4;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Configuration for a generic web service.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService generic_web_service = 4;
+   * </code>
+   *
+   * @return The genericWebService.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService getGenericWebService() {
+    if (webhookCase_ == 4) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService) webhook_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService.getDefaultInstance();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Configuration for a generic web service.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService generic_web_service = 4;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebServiceOrBuilder
+      getGenericWebServiceOrBuilder() {
+    if (webhookCase_ == 4) {
+      return (com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService) webhook_;
+    }
+    return com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService.getDefaultInstance();
+  }
+
+  public static final int TIMEOUT_FIELD_NUMBER = 6;
+  private com.google.protobuf.Duration timeout_;
+  /**
+   *
+   *
+   * <pre>
+   * Webhook execution timeout. Execution is considered failed if Dialogflow
+   * doesn't receive a response from webhook at the end of the timeout period.
+   * Defaults to 5 seconds, maximum allowed timeout is 30 seconds.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration timeout = 6;</code>
+   *
+   * @return Whether the timeout field is set.
+   */
+  @java.lang.Override
+  public boolean hasTimeout() {
+    return timeout_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Webhook execution timeout. Execution is considered failed if Dialogflow
+   * doesn't receive a response from webhook at the end of the timeout period.
+   * Defaults to 5 seconds, maximum allowed timeout is 30 seconds.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration timeout = 6;</code>
+   *
+   * @return The timeout.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Duration getTimeout() {
+    return timeout_ == null ? com.google.protobuf.Duration.getDefaultInstance() : timeout_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Webhook execution timeout. Execution is considered failed if Dialogflow
+   * doesn't receive a response from webhook at the end of the timeout period.
+   * Defaults to 5 seconds, maximum allowed timeout is 30 seconds.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration timeout = 6;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.DurationOrBuilder getTimeoutOrBuilder() {
+    return getTimeout();
+  }
+
+  public static final int DISABLED_FIELD_NUMBER = 5;
+  private boolean disabled_;
+  /**
+   *
+   *
+   * <pre>
+   * Indicates whether the webhook is disabled.
+   * </pre>
+   *
+   * <code>bool disabled = 5;</code>
+   *
+   * @return The disabled.
+   */
+  @java.lang.Override
+  public boolean getDisabled() {
+    return disabled_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (!getDisplayNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, displayName_);
+    }
+    if (webhookCase_ == 4) {
+      output.writeMessage(
+          4, (com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService) webhook_);
+    }
+    if (disabled_ != false) {
+      output.writeBool(5, disabled_);
+    }
+    if (timeout_ != null) {
+      output.writeMessage(6, getTimeout());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (!getDisplayNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, displayName_);
+    }
+    if (webhookCase_ == 4) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              4, (com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService) webhook_);
+    }
+    if (disabled_ != false) {
+      size += com.google.protobuf.CodedOutputStream.computeBoolSize(5, disabled_);
+    }
+    if (timeout_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(6, getTimeout());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.Webhook)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.Webhook other =
+        (com.google.cloud.dialogflow.cx.v3beta1.Webhook) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!getDisplayName().equals(other.getDisplayName())) return false;
+    if (hasTimeout() != other.hasTimeout()) return false;
+    if (hasTimeout()) {
+      if (!getTimeout().equals(other.getTimeout())) return false;
+    }
+    if (getDisabled() != other.getDisabled()) return false;
+    if (!getWebhookCase().equals(other.getWebhookCase())) return false;
+    switch (webhookCase_) {
+      case 4:
+        if (!getGenericWebService().equals(other.getGenericWebService())) return false;
+        break;
+      case 0:
+      default:
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + DISPLAY_NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getDisplayName().hashCode();
+    if (hasTimeout()) {
+      hash = (37 * hash) + TIMEOUT_FIELD_NUMBER;
+      hash = (53 * hash) + getTimeout().hashCode();
+    }
+    hash = (37 * hash) + DISABLED_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getDisabled());
+    switch (webhookCase_) {
+      case 4:
+        hash = (37 * hash) + GENERIC_WEB_SERVICE_FIELD_NUMBER;
+        hash = (53 * hash) + getGenericWebService().hashCode();
+        break;
+      case 0:
+      default:
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Webhook parseFrom(java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Webhook parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Webhook parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Webhook parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Webhook parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Webhook parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Webhook parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Webhook parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Webhook parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Webhook parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Webhook parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Webhook parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.cx.v3beta1.Webhook prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Webhooks host the developer's business logic. During a session, webhooks
+   * allow the developer to use the data extracted by Dialogflow's natural
+   * language processing to generate dynamic responses, validate collected data,
+   * or trigger actions on the backend.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.Webhook}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.Webhook)
+      com.google.cloud.dialogflow.cx.v3beta1.WebhookOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.Webhook.class,
+              com.google.cloud.dialogflow.cx.v3beta1.Webhook.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.Webhook.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      displayName_ = "";
+
+      if (timeoutBuilder_ == null) {
+        timeout_ = null;
+      } else {
+        timeout_ = null;
+        timeoutBuilder_ = null;
+      }
+      disabled_ = false;
+
+      webhookCase_ = 0;
+      webhook_ = null;
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Webhook getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.Webhook.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Webhook build() {
+      com.google.cloud.dialogflow.cx.v3beta1.Webhook result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Webhook buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.Webhook result =
+          new com.google.cloud.dialogflow.cx.v3beta1.Webhook(this);
+      result.name_ = name_;
+      result.displayName_ = displayName_;
+      if (webhookCase_ == 4) {
+        if (genericWebServiceBuilder_ == null) {
+          result.webhook_ = webhook_;
+        } else {
+          result.webhook_ = genericWebServiceBuilder_.build();
+        }
+      }
+      if (timeoutBuilder_ == null) {
+        result.timeout_ = timeout_;
+      } else {
+        result.timeout_ = timeoutBuilder_.build();
+      }
+      result.disabled_ = disabled_;
+      result.webhookCase_ = webhookCase_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.Webhook) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.Webhook) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.Webhook other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.Webhook.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getDisplayName().isEmpty()) {
+        displayName_ = other.displayName_;
+        onChanged();
+      }
+      if (other.hasTimeout()) {
+        mergeTimeout(other.getTimeout());
+      }
+      if (other.getDisabled() != false) {
+        setDisabled(other.getDisabled());
+      }
+      switch (other.getWebhookCase()) {
+        case GENERIC_WEB_SERVICE:
+          {
+            mergeGenericWebService(other.getGenericWebService());
+            break;
+          }
+        case WEBHOOK_NOT_SET:
+          {
+            break;
+          }
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.Webhook parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.dialogflow.cx.v3beta1.Webhook) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int webhookCase_ = 0;
+    private java.lang.Object webhook_;
+
+    public WebhookCase getWebhookCase() {
+      return WebhookCase.forNumber(webhookCase_);
+    }
+
+    public Builder clearWebhook() {
+      webhookCase_ = 0;
+      webhook_ = null;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the webhook.
+     * Required for the [Webhooks.UpdateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.UpdateWebhook] method.
+     * [Webhooks.CreateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.CreateWebhook] populates the name automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the webhook.
+     * Required for the [Webhooks.UpdateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.UpdateWebhook] method.
+     * [Webhooks.CreateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.CreateWebhook] populates the name automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the webhook.
+     * Required for the [Webhooks.UpdateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.UpdateWebhook] method.
+     * [Webhooks.CreateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.CreateWebhook] populates the name automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the webhook.
+     * Required for the [Webhooks.UpdateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.UpdateWebhook] method.
+     * [Webhooks.CreateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.CreateWebhook] populates the name automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the webhook.
+     * Required for the [Webhooks.UpdateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.UpdateWebhook] method.
+     * [Webhooks.CreateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.CreateWebhook] populates the name automatically.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object displayName_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the webhook, unique within the agent.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The displayName.
+     */
+    public java.lang.String getDisplayName() {
+      java.lang.Object ref = displayName_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        displayName_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the webhook, unique within the agent.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return The bytes for displayName.
+     */
+    public com.google.protobuf.ByteString getDisplayNameBytes() {
+      java.lang.Object ref = displayName_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        displayName_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the webhook, unique within the agent.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The displayName to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDisplayName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      displayName_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the webhook, unique within the agent.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearDisplayName() {
+
+      displayName_ = getDefaultInstance().getDisplayName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Required. The human-readable name of the webhook, unique within the agent.
+     * </pre>
+     *
+     * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     *
+     * @param value The bytes for displayName to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDisplayNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      displayName_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService,
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebServiceOrBuilder>
+        genericWebServiceBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Configuration for a generic web service.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService generic_web_service = 4;
+     * </code>
+     *
+     * @return Whether the genericWebService field is set.
+     */
+    @java.lang.Override
+    public boolean hasGenericWebService() {
+      return webhookCase_ == 4;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration for a generic web service.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService generic_web_service = 4;
+     * </code>
+     *
+     * @return The genericWebService.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService getGenericWebService() {
+      if (genericWebServiceBuilder_ == null) {
+        if (webhookCase_ == 4) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService) webhook_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService
+            .getDefaultInstance();
+      } else {
+        if (webhookCase_ == 4) {
+          return genericWebServiceBuilder_.getMessage();
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration for a generic web service.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService generic_web_service = 4;
+     * </code>
+     */
+    public Builder setGenericWebService(
+        com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService value) {
+      if (genericWebServiceBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        webhook_ = value;
+        onChanged();
+      } else {
+        genericWebServiceBuilder_.setMessage(value);
+      }
+      webhookCase_ = 4;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration for a generic web service.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService generic_web_service = 4;
+     * </code>
+     */
+    public Builder setGenericWebService(
+        com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService.Builder builderForValue) {
+      if (genericWebServiceBuilder_ == null) {
+        webhook_ = builderForValue.build();
+        onChanged();
+      } else {
+        genericWebServiceBuilder_.setMessage(builderForValue.build());
+      }
+      webhookCase_ = 4;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration for a generic web service.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService generic_web_service = 4;
+     * </code>
+     */
+    public Builder mergeGenericWebService(
+        com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService value) {
+      if (genericWebServiceBuilder_ == null) {
+        if (webhookCase_ == 4
+            && webhook_
+                != com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService
+                    .getDefaultInstance()) {
+          webhook_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService.newBuilder(
+                      (com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService) webhook_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          webhook_ = value;
+        }
+        onChanged();
+      } else {
+        if (webhookCase_ == 4) {
+          genericWebServiceBuilder_.mergeFrom(value);
+        }
+        genericWebServiceBuilder_.setMessage(value);
+      }
+      webhookCase_ = 4;
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration for a generic web service.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService generic_web_service = 4;
+     * </code>
+     */
+    public Builder clearGenericWebService() {
+      if (genericWebServiceBuilder_ == null) {
+        if (webhookCase_ == 4) {
+          webhookCase_ = 0;
+          webhook_ = null;
+          onChanged();
+        }
+      } else {
+        if (webhookCase_ == 4) {
+          webhookCase_ = 0;
+          webhook_ = null;
+        }
+        genericWebServiceBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration for a generic web service.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService generic_web_service = 4;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService.Builder
+        getGenericWebServiceBuilder() {
+      return getGenericWebServiceFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration for a generic web service.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService generic_web_service = 4;
+     * </code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebServiceOrBuilder
+        getGenericWebServiceOrBuilder() {
+      if ((webhookCase_ == 4) && (genericWebServiceBuilder_ != null)) {
+        return genericWebServiceBuilder_.getMessageOrBuilder();
+      } else {
+        if (webhookCase_ == 4) {
+          return (com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService) webhook_;
+        }
+        return com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Configuration for a generic web service.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService generic_web_service = 4;
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService,
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebServiceOrBuilder>
+        getGenericWebServiceFieldBuilder() {
+      if (genericWebServiceBuilder_ == null) {
+        if (!(webhookCase_ == 4)) {
+          webhook_ =
+              com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService.getDefaultInstance();
+        }
+        genericWebServiceBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService,
+                com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebServiceOrBuilder>(
+                (com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService) webhook_,
+                getParentForChildren(),
+                isClean());
+        webhook_ = null;
+      }
+      webhookCase_ = 4;
+      onChanged();
+      ;
+      return genericWebServiceBuilder_;
+    }
+
+    private com.google.protobuf.Duration timeout_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Duration,
+            com.google.protobuf.Duration.Builder,
+            com.google.protobuf.DurationOrBuilder>
+        timeoutBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Webhook execution timeout. Execution is considered failed if Dialogflow
+     * doesn't receive a response from webhook at the end of the timeout period.
+     * Defaults to 5 seconds, maximum allowed timeout is 30 seconds.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration timeout = 6;</code>
+     *
+     * @return Whether the timeout field is set.
+     */
+    public boolean hasTimeout() {
+      return timeoutBuilder_ != null || timeout_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Webhook execution timeout. Execution is considered failed if Dialogflow
+     * doesn't receive a response from webhook at the end of the timeout period.
+     * Defaults to 5 seconds, maximum allowed timeout is 30 seconds.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration timeout = 6;</code>
+     *
+     * @return The timeout.
+     */
+    public com.google.protobuf.Duration getTimeout() {
+      if (timeoutBuilder_ == null) {
+        return timeout_ == null ? com.google.protobuf.Duration.getDefaultInstance() : timeout_;
+      } else {
+        return timeoutBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Webhook execution timeout. Execution is considered failed if Dialogflow
+     * doesn't receive a response from webhook at the end of the timeout period.
+     * Defaults to 5 seconds, maximum allowed timeout is 30 seconds.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration timeout = 6;</code>
+     */
+    public Builder setTimeout(com.google.protobuf.Duration value) {
+      if (timeoutBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        timeout_ = value;
+        onChanged();
+      } else {
+        timeoutBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Webhook execution timeout. Execution is considered failed if Dialogflow
+     * doesn't receive a response from webhook at the end of the timeout period.
+     * Defaults to 5 seconds, maximum allowed timeout is 30 seconds.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration timeout = 6;</code>
+     */
+    public Builder setTimeout(com.google.protobuf.Duration.Builder builderForValue) {
+      if (timeoutBuilder_ == null) {
+        timeout_ = builderForValue.build();
+        onChanged();
+      } else {
+        timeoutBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Webhook execution timeout. Execution is considered failed if Dialogflow
+     * doesn't receive a response from webhook at the end of the timeout period.
+     * Defaults to 5 seconds, maximum allowed timeout is 30 seconds.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration timeout = 6;</code>
+     */
+    public Builder mergeTimeout(com.google.protobuf.Duration value) {
+      if (timeoutBuilder_ == null) {
+        if (timeout_ != null) {
+          timeout_ =
+              com.google.protobuf.Duration.newBuilder(timeout_).mergeFrom(value).buildPartial();
+        } else {
+          timeout_ = value;
+        }
+        onChanged();
+      } else {
+        timeoutBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Webhook execution timeout. Execution is considered failed if Dialogflow
+     * doesn't receive a response from webhook at the end of the timeout period.
+     * Defaults to 5 seconds, maximum allowed timeout is 30 seconds.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration timeout = 6;</code>
+     */
+    public Builder clearTimeout() {
+      if (timeoutBuilder_ == null) {
+        timeout_ = null;
+        onChanged();
+      } else {
+        timeout_ = null;
+        timeoutBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Webhook execution timeout. Execution is considered failed if Dialogflow
+     * doesn't receive a response from webhook at the end of the timeout period.
+     * Defaults to 5 seconds, maximum allowed timeout is 30 seconds.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration timeout = 6;</code>
+     */
+    public com.google.protobuf.Duration.Builder getTimeoutBuilder() {
+
+      onChanged();
+      return getTimeoutFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Webhook execution timeout. Execution is considered failed if Dialogflow
+     * doesn't receive a response from webhook at the end of the timeout period.
+     * Defaults to 5 seconds, maximum allowed timeout is 30 seconds.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration timeout = 6;</code>
+     */
+    public com.google.protobuf.DurationOrBuilder getTimeoutOrBuilder() {
+      if (timeoutBuilder_ != null) {
+        return timeoutBuilder_.getMessageOrBuilder();
+      } else {
+        return timeout_ == null ? com.google.protobuf.Duration.getDefaultInstance() : timeout_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Webhook execution timeout. Execution is considered failed if Dialogflow
+     * doesn't receive a response from webhook at the end of the timeout period.
+     * Defaults to 5 seconds, maximum allowed timeout is 30 seconds.
+     * </pre>
+     *
+     * <code>.google.protobuf.Duration timeout = 6;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Duration,
+            com.google.protobuf.Duration.Builder,
+            com.google.protobuf.DurationOrBuilder>
+        getTimeoutFieldBuilder() {
+      if (timeoutBuilder_ == null) {
+        timeoutBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.Duration,
+                com.google.protobuf.Duration.Builder,
+                com.google.protobuf.DurationOrBuilder>(
+                getTimeout(), getParentForChildren(), isClean());
+        timeout_ = null;
+      }
+      return timeoutBuilder_;
+    }
+
+    private boolean disabled_;
+    /**
+     *
+     *
+     * <pre>
+     * Indicates whether the webhook is disabled.
+     * </pre>
+     *
+     * <code>bool disabled = 5;</code>
+     *
+     * @return The disabled.
+     */
+    @java.lang.Override
+    public boolean getDisabled() {
+      return disabled_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates whether the webhook is disabled.
+     * </pre>
+     *
+     * <code>bool disabled = 5;</code>
+     *
+     * @param value The disabled to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDisabled(boolean value) {
+
+      disabled_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Indicates whether the webhook is disabled.
+     * </pre>
+     *
+     * <code>bool disabled = 5;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearDisabled() {
+
+      disabled_ = false;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.Webhook)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.Webhook)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.Webhook DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.Webhook();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.Webhook getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<Webhook> PARSER =
+      new com.google.protobuf.AbstractParser<Webhook>() {
+        @java.lang.Override
+        public Webhook parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new Webhook(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<Webhook> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<Webhook> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.Webhook getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookName.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookName.java
new file mode 100644
index 000000000..980ad9e20
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookName.java
@@ -0,0 +1,242 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+/** AUTO-GENERATED DOCUMENTATION AND CLASS */
+@javax.annotation.Generated("by GAPIC protoc plugin")
+public class WebhookName implements ResourceName {
+
+  private static final PathTemplate PATH_TEMPLATE =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/agents/{agent}/webhooks/{webhook}");
+
+  private volatile Map<String, String> fieldValuesMap;
+
+  private final String project;
+  private final String location;
+  private final String agent;
+  private final String webhook;
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public String getAgent() {
+    return agent;
+  }
+
+  public String getWebhook() {
+    return webhook;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  private WebhookName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    agent = Preconditions.checkNotNull(builder.getAgent());
+    webhook = Preconditions.checkNotNull(builder.getWebhook());
+  }
+
+  public static WebhookName of(String project, String location, String agent, String webhook) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setWebhook(webhook)
+        .build();
+  }
+
+  public static String format(String project, String location, String agent, String webhook) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAgent(agent)
+        .setWebhook(webhook)
+        .build()
+        .toString();
+  }
+
+  public static WebhookName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    Map<String, String> matchMap =
+        PATH_TEMPLATE.validatedMatch(
+            formattedString, "WebhookName.parse: formattedString not in valid format");
+    return of(
+        matchMap.get("project"),
+        matchMap.get("location"),
+        matchMap.get("agent"),
+        matchMap.get("webhook"));
+  }
+
+  public static List<WebhookName> parseList(List<String> formattedStrings) {
+    List<WebhookName> list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List<String> toStringList(List<WebhookName> values) {
+    List<String> list = new ArrayList<String>(values.size());
+    for (WebhookName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PATH_TEMPLATE.matches(formattedString);
+  }
+
+  public Map<String, String> getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder<String, String> fieldMapBuilder = ImmutableMap.builder();
+          fieldMapBuilder.put("project", project);
+          fieldMapBuilder.put("location", location);
+          fieldMapBuilder.put("agent", agent);
+          fieldMapBuilder.put("webhook", webhook);
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return PATH_TEMPLATE.instantiate(
+        "project", project, "location", location, "agent", agent, "webhook", webhook);
+  }
+
+  /** Builder for WebhookName. */
+  public static class Builder {
+
+    private String project;
+    private String location;
+    private String agent;
+    private String webhook;
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getAgent() {
+      return agent;
+    }
+
+    public String getWebhook() {
+      return webhook;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public Builder setAgent(String agent) {
+      this.agent = agent;
+      return this;
+    }
+
+    public Builder setWebhook(String webhook) {
+      this.webhook = webhook;
+      return this;
+    }
+
+    private Builder() {}
+
+    private Builder(WebhookName webhookName) {
+      project = webhookName.project;
+      location = webhookName.location;
+      agent = webhookName.agent;
+      webhook = webhookName.webhook;
+    }
+
+    public WebhookName build() {
+      return new WebhookName(this);
+    }
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o instanceof WebhookName) {
+      WebhookName that = (WebhookName) o;
+      return (this.project.equals(that.project))
+          && (this.location.equals(that.location))
+          && (this.agent.equals(that.agent))
+          && (this.webhook.equals(that.webhook));
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= project.hashCode();
+    h *= 1000003;
+    h ^= location.hashCode();
+    h *= 1000003;
+    h ^= agent.hashCode();
+    h *= 1000003;
+    h ^= webhook.hashCode();
+    return h;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookOrBuilder.java
new file mode 100644
index 000000000..d34f019a5
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookOrBuilder.java
@@ -0,0 +1,178 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface WebhookOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.Webhook)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the webhook.
+   * Required for the [Webhooks.UpdateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.UpdateWebhook] method.
+   * [Webhooks.CreateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.CreateWebhook] populates the name automatically.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the webhook.
+   * Required for the [Webhooks.UpdateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.UpdateWebhook] method.
+   * [Webhooks.CreateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.CreateWebhook] populates the name automatically.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/webhooks/&lt;Webhook ID&gt;`.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the webhook, unique within the agent.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The displayName.
+   */
+  java.lang.String getDisplayName();
+  /**
+   *
+   *
+   * <pre>
+   * Required. The human-readable name of the webhook, unique within the agent.
+   * </pre>
+   *
+   * <code>string display_name = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   *
+   * @return The bytes for displayName.
+   */
+  com.google.protobuf.ByteString getDisplayNameBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Configuration for a generic web service.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService generic_web_service = 4;
+   * </code>
+   *
+   * @return Whether the genericWebService field is set.
+   */
+  boolean hasGenericWebService();
+  /**
+   *
+   *
+   * <pre>
+   * Configuration for a generic web service.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService generic_web_service = 4;
+   * </code>
+   *
+   * @return The genericWebService.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService getGenericWebService();
+  /**
+   *
+   *
+   * <pre>
+   * Configuration for a generic web service.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebService generic_web_service = 4;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.Webhook.GenericWebServiceOrBuilder
+      getGenericWebServiceOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Webhook execution timeout. Execution is considered failed if Dialogflow
+   * doesn't receive a response from webhook at the end of the timeout period.
+   * Defaults to 5 seconds, maximum allowed timeout is 30 seconds.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration timeout = 6;</code>
+   *
+   * @return Whether the timeout field is set.
+   */
+  boolean hasTimeout();
+  /**
+   *
+   *
+   * <pre>
+   * Webhook execution timeout. Execution is considered failed if Dialogflow
+   * doesn't receive a response from webhook at the end of the timeout period.
+   * Defaults to 5 seconds, maximum allowed timeout is 30 seconds.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration timeout = 6;</code>
+   *
+   * @return The timeout.
+   */
+  com.google.protobuf.Duration getTimeout();
+  /**
+   *
+   *
+   * <pre>
+   * Webhook execution timeout. Execution is considered failed if Dialogflow
+   * doesn't receive a response from webhook at the end of the timeout period.
+   * Defaults to 5 seconds, maximum allowed timeout is 30 seconds.
+   * </pre>
+   *
+   * <code>.google.protobuf.Duration timeout = 6;</code>
+   */
+  com.google.protobuf.DurationOrBuilder getTimeoutOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Indicates whether the webhook is disabled.
+   * </pre>
+   *
+   * <code>bool disabled = 5;</code>
+   *
+   * @return The disabled.
+   */
+  boolean getDisabled();
+
+  public com.google.cloud.dialogflow.cx.v3beta1.Webhook.WebhookCase getWebhookCase();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookProto.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookProto.java
new file mode 100644
index 000000000..f3351a60f
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookProto.java
@@ -0,0 +1,497 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public final class WebhookProto {
+  private WebhookProto() {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistryLite registry) {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions((com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_GenericWebService_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_GenericWebService_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_GenericWebService_RequestHeadersEntry_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_GenericWebService_RequestHeadersEntry_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListWebhooksRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListWebhooksRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListWebhooksResponse_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_ListWebhooksResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_GetWebhookRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_GetWebhookRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_CreateWebhookRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_CreateWebhookRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateWebhookRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateWebhookRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteWebhookRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteWebhookRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_FulfillmentInfo_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_FulfillmentInfo_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_IntentParameterValue_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_IntentParameterValue_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_ParametersEntry_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_ParametersEntry_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookResponse_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookResponse_FulfillmentResponse_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookResponse_FulfillmentResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_FormInfo_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_FormInfo_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_FormInfo_ParameterInfo_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_FormInfo_ParameterInfo_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_SessionInfo_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_SessionInfo_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_cx_v3beta1_SessionInfo_ParametersEntry_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_cx_v3beta1_SessionInfo_ParametersEntry_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
+    return descriptor;
+  }
+
+  private static com.google.protobuf.Descriptors.FileDescriptor descriptor;
+
+  static {
+    java.lang.String[] descriptorData = {
+      "\n0google/cloud/dialogflow/cx/v3beta1/web"
+          + "hook.proto\022\"google.cloud.dialogflow.cx.v"
+          + "3beta1\032\034google/api/annotations.proto\032\027go"
+          + "ogle/api/client.proto\032\037google/api/field_"
+          + "behavior.proto\032\031google/api/resource.prot"
+          + "o\0329google/cloud/dialogflow/cx/v3beta1/re"
+          + "sponse_message.proto\032\036google/protobuf/du"
+          + "ration.proto\032\033google/protobuf/empty.prot"
+          + "o\032 google/protobuf/field_mask.proto\032\034goo"
+          + "gle/protobuf/struct.proto\"\303\004\n\007Webhook\022\014\n"
+          + "\004name\030\001 \001(\t\022\031\n\014display_name\030\002 \001(\tB\003\340A\002\022\\"
+          + "\n\023generic_web_service\030\004 \001(\0132=.google.clo"
+          + "ud.dialogflow.cx.v3beta1.Webhook.Generic"
+          + "WebServiceH\000\022*\n\007timeout\030\006 \001(\0132\031.google.p"
+          + "rotobuf.Duration\022\020\n\010disabled\030\005 \001(\010\032\364\001\n\021G"
+          + "enericWebService\022\020\n\003uri\030\001 \001(\tB\003\340A\002\022\024\n\010us"
+          + "ername\030\002 \001(\tB\002\030\001\022\024\n\010password\030\003 \001(\tB\002\030\001\022j"
+          + "\n\017request_headers\030\004 \003(\0132Q.google.cloud.d"
+          + "ialogflow.cx.v3beta1.Webhook.GenericWebS"
+          + "ervice.RequestHeadersEntry\0325\n\023RequestHea"
+          + "dersEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028"
+          + "\001:q\352An\n!dialogflow.googleapis.com/Webhoo"
+          + "k\022Iprojects/{project}/locations/{locatio"
+          + "n}/agents/{agent}/webhooks/{webhook}B\t\n\007"
+          + "webhook\"w\n\023ListWebhooksRequest\0229\n\006parent"
+          + "\030\001 \001(\tB)\340A\002\372A#\022!dialogflow.googleapis.co"
+          + "m/Webhook\022\021\n\tpage_size\030\002 \001(\005\022\022\n\npage_tok"
+          + "en\030\003 \001(\t\"n\n\024ListWebhooksResponse\022=\n\010webh"
+          + "ooks\030\001 \003(\0132+.google.cloud.dialogflow.cx."
+          + "v3beta1.Webhook\022\027\n\017next_page_token\030\002 \001(\t"
+          + "\"L\n\021GetWebhookRequest\0227\n\004name\030\001 \001(\tB)\340A\002"
+          + "\372A#\n!dialogflow.googleapis.com/Webhook\"\224"
+          + "\001\n\024CreateWebhookRequest\0229\n\006parent\030\001 \001(\tB"
+          + ")\340A\002\372A#\022!dialogflow.googleapis.com/Webho"
+          + "ok\022A\n\007webhook\030\002 \001(\0132+.google.cloud.dialo"
+          + "gflow.cx.v3beta1.WebhookB\003\340A\002\"\212\001\n\024Update"
+          + "WebhookRequest\022A\n\007webhook\030\001 \001(\0132+.google"
+          + ".cloud.dialogflow.cx.v3beta1.WebhookB\003\340A"
+          + "\002\022/\n\013update_mask\030\002 \001(\0132\032.google.protobuf"
+          + ".FieldMask\"O\n\024DeleteWebhookRequest\0227\n\004na"
+          + "me\030\001 \001(\tB)\340A\002\372A#\n!dialogflow.googleapis."
+          + "com/Webhook\"\234\007\n\016WebhookRequest\022!\n\031detect"
+          + "_intent_response_id\030\001 \001(\t\022\\\n\020fulfillment"
+          + "_info\030\006 \001(\0132B.google.cloud.dialogflow.cx"
+          + ".v3beta1.WebhookRequest.FulfillmentInfo\022"
+          + "R\n\013intent_info\030\003 \001(\0132=.google.cloud.dial"
+          + "ogflow.cx.v3beta1.WebhookRequest.IntentI"
+          + "nfo\022?\n\tpage_info\030\004 \001(\0132,.google.cloud.di"
+          + "alogflow.cx.v3beta1.PageInfo\022E\n\014session_"
+          + "info\030\005 \001(\0132/.google.cloud.dialogflow.cx."
+          + "v3beta1.SessionInfo\022E\n\010messages\030\007 \003(\01323."
+          + "google.cloud.dialogflow.cx.v3beta1.Respo"
+          + "nseMessage\022(\n\007payload\030\010 \001(\0132\027.google.pro"
+          + "tobuf.Struct\032\036\n\017FulfillmentInfo\022\013\n\003tag\030\001"
+          + " \001(\t\032\233\003\n\nIntentInfo\022B\n\023last_matched_inte"
+          + "nt\030\001 \001(\tB%\372A\"\n dialogflow.googleapis.com"
+          + "/Intent\022a\n\nparameters\030\002 \003(\0132M.google.clo"
+          + "ud.dialogflow.cx.v3beta1.WebhookRequest."
+          + "IntentInfo.ParametersEntry\032^\n\024IntentPara"
+          + "meterValue\022\026\n\016original_value\030\001 \001(\t\022.\n\016re"
+          + "solved_value\030\002 \001(\0132\026.google.protobuf.Val"
+          + "ue\032\205\001\n\017ParametersEntry\022\013\n\003key\030\001 \001(\t\022a\n\005v"
+          + "alue\030\002 \001(\0132R.google.cloud.dialogflow.cx."
+          + "v3beta1.WebhookRequest.IntentInfo.Intent"
+          + "ParameterValue:\0028\001\"\310\005\n\017WebhookResponse\022e"
+          + "\n\024fulfillment_response\030\001 \001(\0132G.google.cl"
+          + "oud.dialogflow.cx.v3beta1.WebhookRespons"
+          + "e.FulfillmentResponse\022?\n\tpage_info\030\002 \001(\013"
+          + "2,.google.cloud.dialogflow.cx.v3beta1.Pa"
+          + "geInfo\022E\n\014session_info\030\003 \001(\0132/.google.cl"
+          + "oud.dialogflow.cx.v3beta1.SessionInfo\022(\n"
+          + "\007payload\030\004 \001(\0132\027.google.protobuf.Struct\022"
+          + ":\n\013target_page\030\005 \001(\tB#\372A \n\036dialogflow.go"
+          + "ogleapis.com/PageH\000\022:\n\013target_flow\030\006 \001(\t"
+          + "B#\372A \n\036dialogflow.googleapis.com/FlowH\000\032"
+          + "\225\002\n\023FulfillmentResponse\022E\n\010messages\030\001 \003("
+          + "\01323.google.cloud.dialogflow.cx.v3beta1.R"
+          + "esponseMessage\022m\n\016merge_behavior\030\002 \001(\0162U"
+          + ".google.cloud.dialogflow.cx.v3beta1.Webh"
+          + "ookResponse.FulfillmentResponse.MergeBeh"
+          + "avior\"H\n\rMergeBehavior\022\036\n\032MERGE_BEHAVIOR"
+          + "_UNSPECIFIED\020\000\022\n\n\006APPEND\020\001\022\013\n\007REPLACE\020\002B"
+          + "\014\n\ntransition\"\254\004\n\010PageInfo\0229\n\014current_pa"
+          + "ge\030\001 \001(\tB#\372A \n\036dialogflow.googleapis.com"
+          + "/Page\022H\n\tform_info\030\003 \001(\01325.google.cloud."
+          + "dialogflow.cx.v3beta1.PageInfo.FormInfo\032"
+          + "\232\003\n\010FormInfo\022[\n\016parameter_info\030\002 \003(\0132C.g"
+          + "oogle.cloud.dialogflow.cx.v3beta1.PageIn"
+          + "fo.FormInfo.ParameterInfo\032\260\002\n\rParameterI"
+          + "nfo\022\024\n\014display_name\030\001 \001(\t\022\020\n\010required\030\002 "
+          + "\001(\010\022a\n\005state\030\003 \001(\0162R.google.cloud.dialog"
+          + "flow.cx.v3beta1.PageInfo.FormInfo.Parame"
+          + "terInfo.ParameterState\022%\n\005value\030\004 \001(\0132\026."
+          + "google.protobuf.Value\022\026\n\016just_collected\030"
+          + "\005 \001(\010\"U\n\016ParameterState\022\037\n\033PARAMETER_STA"
+          + "TE_UNSPECIFIED\020\000\022\t\n\005EMPTY\020\001\022\013\n\007INVALID\020\002"
+          + "\022\n\n\006FILLED\020\003\"\346\001\n\013SessionInfo\0227\n\007session\030"
+          + "\001 \001(\tB&\372A#\n!dialogflow.googleapis.com/Se"
+          + "ssion\022S\n\nparameters\030\002 \003(\0132?.google.cloud"
+          + ".dialogflow.cx.v3beta1.SessionInfo.Param"
+          + "etersEntry\032I\n\017ParametersEntry\022\013\n\003key\030\001 \001"
+          + "(\t\022%\n\005value\030\002 \001(\0132\026.google.protobuf.Valu"
+          + "e:\0028\0012\375\010\n\010Webhooks\022\316\001\n\014ListWebhooks\0227.go"
+          + "ogle.cloud.dialogflow.cx.v3beta1.ListWeb"
+          + "hooksRequest\0328.google.cloud.dialogflow.c"
+          + "x.v3beta1.ListWebhooksResponse\"K\202\323\344\223\002<\022:"
+          + "/v3beta1/{parent=projects/*/locations/*/"
+          + "agents/*}/webhooks\332A\006parent\022\273\001\n\nGetWebho"
+          + "ok\0225.google.cloud.dialogflow.cx.v3beta1."
+          + "GetWebhookRequest\032+.google.cloud.dialogf"
+          + "low.cx.v3beta1.Webhook\"I\202\323\344\223\002<\022:/v3beta1"
+          + "/{name=projects/*/locations/*/agents/*/w"
+          + "ebhooks/*}\332A\004name\022\324\001\n\rCreateWebhook\0228.go"
+          + "ogle.cloud.dialogflow.cx.v3beta1.CreateW"
+          + "ebhookRequest\032+.google.cloud.dialogflow."
+          + "cx.v3beta1.Webhook\"\\\202\323\344\223\002E\":/v3beta1/{pa"
+          + "rent=projects/*/locations/*/agents/*}/we"
+          + "bhooks:\007webhook\332A\016parent,webhook\022\341\001\n\rUpd"
+          + "ateWebhook\0228.google.cloud.dialogflow.cx."
+          + "v3beta1.UpdateWebhookRequest\032+.google.cl"
+          + "oud.dialogflow.cx.v3beta1.Webhook\"i\202\323\344\223\002"
+          + "M2B/v3beta1/{webhook.name=projects/*/loc"
+          + "ations/*/agents/*/webhooks/*}:\007webhook\332A"
+          + "\023webhook,update_mask\022\254\001\n\rDeleteWebhook\0228"
+          + ".google.cloud.dialogflow.cx.v3beta1.Dele"
+          + "teWebhookRequest\032\026.google.protobuf.Empty"
+          + "\"I\202\323\344\223\002<*:/v3beta1/{name=projects/*/loca"
+          + "tions/*/agents/*/webhooks/*}\332A\004name\032x\312A\031"
+          + "dialogflow.googleapis.com\322AYhttps://www."
+          + "googleapis.com/auth/cloud-platform,https"
+          + "://www.googleapis.com/auth/dialogflowB\253\001"
+          + "\n&com.google.cloud.dialogflow.cx.v3beta1"
+          + "B\014WebhookProtoP\001ZDgoogle.golang.org/genp"
+          + "roto/googleapis/cloud/dialogflow/cx/v3be"
+          + "ta1;cx\370\001\001\242\002\002DF\252\002\"Google.Cloud.Dialogflow"
+          + ".Cx.V3Beta1b\006proto3"
+    };
+    descriptor =
+        com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
+            descriptorData,
+            new com.google.protobuf.Descriptors.FileDescriptor[] {
+              com.google.api.AnnotationsProto.getDescriptor(),
+              com.google.api.ClientProto.getDescriptor(),
+              com.google.api.FieldBehaviorProto.getDescriptor(),
+              com.google.api.ResourceProto.getDescriptor(),
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto.getDescriptor(),
+              com.google.protobuf.DurationProto.getDescriptor(),
+              com.google.protobuf.EmptyProto.getDescriptor(),
+              com.google.protobuf.FieldMaskProto.getDescriptor(),
+              com.google.protobuf.StructProto.getDescriptor(),
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_descriptor =
+        getDescriptor().getMessageTypes().get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_descriptor,
+            new java.lang.String[] {
+              "Name", "DisplayName", "GenericWebService", "Timeout", "Disabled", "Webhook",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_GenericWebService_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_GenericWebService_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_GenericWebService_descriptor,
+            new java.lang.String[] {
+              "Uri", "Username", "Password", "RequestHeaders",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_GenericWebService_RequestHeadersEntry_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_GenericWebService_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_GenericWebService_RequestHeadersEntry_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_Webhook_GenericWebService_RequestHeadersEntry_descriptor,
+            new java.lang.String[] {
+              "Key", "Value",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListWebhooksRequest_descriptor =
+        getDescriptor().getMessageTypes().get(1);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListWebhooksRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ListWebhooksRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "PageSize", "PageToken",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListWebhooksResponse_descriptor =
+        getDescriptor().getMessageTypes().get(2);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_ListWebhooksResponse_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_ListWebhooksResponse_descriptor,
+            new java.lang.String[] {
+              "Webhooks", "NextPageToken",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_GetWebhookRequest_descriptor =
+        getDescriptor().getMessageTypes().get(3);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_GetWebhookRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_GetWebhookRequest_descriptor,
+            new java.lang.String[] {
+              "Name",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_CreateWebhookRequest_descriptor =
+        getDescriptor().getMessageTypes().get(4);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_CreateWebhookRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_CreateWebhookRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "Webhook",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateWebhookRequest_descriptor =
+        getDescriptor().getMessageTypes().get(5);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateWebhookRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_UpdateWebhookRequest_descriptor,
+            new java.lang.String[] {
+              "Webhook", "UpdateMask",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteWebhookRequest_descriptor =
+        getDescriptor().getMessageTypes().get(6);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteWebhookRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_DeleteWebhookRequest_descriptor,
+            new java.lang.String[] {
+              "Name",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_descriptor =
+        getDescriptor().getMessageTypes().get(7);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_descriptor,
+            new java.lang.String[] {
+              "DetectIntentResponseId",
+              "FulfillmentInfo",
+              "IntentInfo",
+              "PageInfo",
+              "SessionInfo",
+              "Messages",
+              "Payload",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_FulfillmentInfo_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_FulfillmentInfo_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_FulfillmentInfo_descriptor,
+            new java.lang.String[] {
+              "Tag",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_descriptor
+            .getNestedTypes()
+            .get(1);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_descriptor,
+            new java.lang.String[] {
+              "LastMatchedIntent", "Parameters",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_IntentParameterValue_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_IntentParameterValue_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_IntentParameterValue_descriptor,
+            new java.lang.String[] {
+              "OriginalValue", "ResolvedValue",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_ParametersEntry_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_descriptor
+            .getNestedTypes()
+            .get(1);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_ParametersEntry_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_ParametersEntry_descriptor,
+            new java.lang.String[] {
+              "Key", "Value",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookResponse_descriptor =
+        getDescriptor().getMessageTypes().get(8);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookResponse_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookResponse_descriptor,
+            new java.lang.String[] {
+              "FulfillmentResponse",
+              "PageInfo",
+              "SessionInfo",
+              "Payload",
+              "TargetPage",
+              "TargetFlow",
+              "Transition",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookResponse_FulfillmentResponse_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookResponse_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookResponse_FulfillmentResponse_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookResponse_FulfillmentResponse_descriptor,
+            new java.lang.String[] {
+              "Messages", "MergeBehavior",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_descriptor =
+        getDescriptor().getMessageTypes().get(9);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_descriptor,
+            new java.lang.String[] {
+              "CurrentPage", "FormInfo",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_FormInfo_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_FormInfo_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_FormInfo_descriptor,
+            new java.lang.String[] {
+              "ParameterInfo",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_FormInfo_ParameterInfo_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_FormInfo_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_FormInfo_ParameterInfo_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_PageInfo_FormInfo_ParameterInfo_descriptor,
+            new java.lang.String[] {
+              "DisplayName", "Required", "State", "Value", "JustCollected",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_SessionInfo_descriptor =
+        getDescriptor().getMessageTypes().get(10);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_SessionInfo_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_SessionInfo_descriptor,
+            new java.lang.String[] {
+              "Session", "Parameters",
+            });
+    internal_static_google_cloud_dialogflow_cx_v3beta1_SessionInfo_ParametersEntry_descriptor =
+        internal_static_google_cloud_dialogflow_cx_v3beta1_SessionInfo_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_cx_v3beta1_SessionInfo_ParametersEntry_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_cx_v3beta1_SessionInfo_ParametersEntry_descriptor,
+            new java.lang.String[] {
+              "Key", "Value",
+            });
+    com.google.protobuf.ExtensionRegistry registry =
+        com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.ClientProto.defaultHost);
+    registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
+    registry.add(com.google.api.AnnotationsProto.http);
+    registry.add(com.google.api.ClientProto.methodSignature);
+    registry.add(com.google.api.ClientProto.oauthScopes);
+    registry.add(com.google.api.ResourceProto.resource);
+    registry.add(com.google.api.ResourceProto.resourceReference);
+    com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
+        descriptor, registry);
+    com.google.api.AnnotationsProto.getDescriptor();
+    com.google.api.ClientProto.getDescriptor();
+    com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.api.ResourceProto.getDescriptor();
+    com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageProto.getDescriptor();
+    com.google.protobuf.DurationProto.getDescriptor();
+    com.google.protobuf.EmptyProto.getDescriptor();
+    com.google.protobuf.FieldMaskProto.getDescriptor();
+    com.google.protobuf.StructProto.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookRequest.java
new file mode 100644
index 000000000..54559d8d0
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookRequest.java
@@ -0,0 +1,5584 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The request message for a webhook call.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.WebhookRequest}
+ */
+public final class WebhookRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.WebhookRequest)
+    WebhookRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use WebhookRequest.newBuilder() to construct.
+  private WebhookRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private WebhookRequest() {
+    detectIntentResponseId_ = "";
+    messages_ = java.util.Collections.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new WebhookRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private WebhookRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              detectIntentResponseId_ = s;
+              break;
+            }
+          case 26:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.Builder subBuilder =
+                  null;
+              if (intentInfo_ != null) {
+                subBuilder = intentInfo_.toBuilder();
+              }
+              intentInfo_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(intentInfo_);
+                intentInfo_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 34:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.PageInfo.Builder subBuilder = null;
+              if (pageInfo_ != null) {
+                subBuilder = pageInfo_.toBuilder();
+              }
+              pageInfo_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.PageInfo.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(pageInfo_);
+                pageInfo_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 42:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.Builder subBuilder = null;
+              if (sessionInfo_ != null) {
+                subBuilder = sessionInfo_.toBuilder();
+              }
+              sessionInfo_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(sessionInfo_);
+                sessionInfo_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 50:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo.Builder
+                  subBuilder = null;
+              if (fulfillmentInfo_ != null) {
+                subBuilder = fulfillmentInfo_.toBuilder();
+              }
+              fulfillmentInfo_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo
+                          .parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(fulfillmentInfo_);
+                fulfillmentInfo_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 58:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                messages_ =
+                    new java.util.ArrayList<
+                        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              messages_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.parser(),
+                      extensionRegistry));
+              break;
+            }
+          case 66:
+            {
+              com.google.protobuf.Struct.Builder subBuilder = null;
+              if (payload_ != null) {
+                subBuilder = payload_.toBuilder();
+              }
+              payload_ = input.readMessage(com.google.protobuf.Struct.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(payload_);
+                payload_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        messages_ = java.util.Collections.unmodifiableList(messages_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.class,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.Builder.class);
+  }
+
+  public interface FulfillmentInfoOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * <pre>
+     * Always present. The tag used to identify which fulfillment is being
+     * called.
+     * </pre>
+     *
+     * <code>string tag = 1;</code>
+     *
+     * @return The tag.
+     */
+    java.lang.String getTag();
+    /**
+     *
+     *
+     * <pre>
+     * Always present. The tag used to identify which fulfillment is being
+     * called.
+     * </pre>
+     *
+     * <code>string tag = 1;</code>
+     *
+     * @return The bytes for tag.
+     */
+    com.google.protobuf.ByteString getTagBytes();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents fulfillment information communicated to the webhook.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo}
+   */
+  public static final class FulfillmentInfo extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo)
+      FulfillmentInfoOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use FulfillmentInfo.newBuilder() to construct.
+    private FulfillmentInfo(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+
+    private FulfillmentInfo() {
+      tag_ = "";
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new FulfillmentInfo();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private FulfillmentInfo(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+
+                tag_ = s;
+                break;
+              }
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_FulfillmentInfo_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_FulfillmentInfo_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo.class,
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo.Builder.class);
+    }
+
+    public static final int TAG_FIELD_NUMBER = 1;
+    private volatile java.lang.Object tag_;
+    /**
+     *
+     *
+     * <pre>
+     * Always present. The tag used to identify which fulfillment is being
+     * called.
+     * </pre>
+     *
+     * <code>string tag = 1;</code>
+     *
+     * @return The tag.
+     */
+    @java.lang.Override
+    public java.lang.String getTag() {
+      java.lang.Object ref = tag_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        tag_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Always present. The tag used to identify which fulfillment is being
+     * called.
+     * </pre>
+     *
+     * <code>string tag = 1;</code>
+     *
+     * @return The bytes for tag.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getTagBytes() {
+      java.lang.Object ref = tag_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        tag_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (!getTagBytes().isEmpty()) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, tag_);
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (!getTagBytes().isEmpty()) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, tag_);
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo other =
+          (com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo) obj;
+
+      if (!getTag().equals(other.getTag())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + TAG_FIELD_NUMBER;
+      hash = (53 * hash) + getTag().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo parseFrom(
+        byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents fulfillment information communicated to the webhook.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo)
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfoOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_FulfillmentInfo_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_FulfillmentInfo_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo.class,
+                com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo.Builder
+                    .class);
+      }
+
+      // Construct using
+      // com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        tag_ = "";
+
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_FulfillmentInfo_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo
+          getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo
+            .getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo build() {
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo result =
+            buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo buildPartial() {
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo result =
+            new com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo(this);
+        result.tag_ = tag_;
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other
+            instanceof com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo) {
+          return mergeFrom(
+              (com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo other) {
+        if (other
+            == com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo
+                .getDefaultInstance()) return this;
+        if (!other.getTag().isEmpty()) {
+          tag_ = other.tag_;
+          onChanged();
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo)
+                  e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private java.lang.Object tag_ = "";
+      /**
+       *
+       *
+       * <pre>
+       * Always present. The tag used to identify which fulfillment is being
+       * called.
+       * </pre>
+       *
+       * <code>string tag = 1;</code>
+       *
+       * @return The tag.
+       */
+      public java.lang.String getTag() {
+        java.lang.Object ref = tag_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          tag_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Always present. The tag used to identify which fulfillment is being
+       * called.
+       * </pre>
+       *
+       * <code>string tag = 1;</code>
+       *
+       * @return The bytes for tag.
+       */
+      public com.google.protobuf.ByteString getTagBytes() {
+        java.lang.Object ref = tag_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          tag_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Always present. The tag used to identify which fulfillment is being
+       * called.
+       * </pre>
+       *
+       * <code>string tag = 1;</code>
+       *
+       * @param value The tag to set.
+       * @return This builder for chaining.
+       */
+      public Builder setTag(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+
+        tag_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Always present. The tag used to identify which fulfillment is being
+       * called.
+       * </pre>
+       *
+       * <code>string tag = 1;</code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearTag() {
+
+        tag_ = getDefaultInstance().getTag();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Always present. The tag used to identify which fulfillment is being
+       * called.
+       * </pre>
+       *
+       * <code>string tag = 1;</code>
+       *
+       * @param value The bytes for tag to set.
+       * @return This builder for chaining.
+       */
+      public Builder setTagBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+
+        tag_ = value;
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo)
+    private static final com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE =
+          new com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo();
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<FulfillmentInfo> PARSER =
+        new com.google.protobuf.AbstractParser<FulfillmentInfo>() {
+          @java.lang.Override
+          public FulfillmentInfo parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new FulfillmentInfo(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser<FulfillmentInfo> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<FulfillmentInfo> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public interface IntentInfoOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * <pre>
+     * Always present. The unique identifier of the last matched
+     * [intent][google.cloud.dialogflow.cx.v3beta1.Intent]. Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+     * ID&gt;/agents/&lt;Agent ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>string last_matched_intent = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The lastMatchedIntent.
+     */
+    java.lang.String getLastMatchedIntent();
+    /**
+     *
+     *
+     * <pre>
+     * Always present. The unique identifier of the last matched
+     * [intent][google.cloud.dialogflow.cx.v3beta1.Intent]. Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+     * ID&gt;/agents/&lt;Agent ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>string last_matched_intent = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The bytes for lastMatchedIntent.
+     */
+    com.google.protobuf.ByteString getLastMatchedIntentBytes();
+
+    /**
+     *
+     *
+     * <pre>
+     * Parameters identified as a result of intent matching. This is a map of
+     * the name of the identified parameter to the value of the parameter
+     * identified from the user's utterance. All parameters defined in the
+     * matched intent that are identified will be surfaced here.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue&gt; parameters = 2;
+     * </code>
+     */
+    int getParametersCount();
+    /**
+     *
+     *
+     * <pre>
+     * Parameters identified as a result of intent matching. This is a map of
+     * the name of the identified parameter to the value of the parameter
+     * identified from the user's utterance. All parameters defined in the
+     * matched intent that are identified will be surfaced here.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue&gt; parameters = 2;
+     * </code>
+     */
+    boolean containsParameters(java.lang.String key);
+    /** Use {@link #getParametersMap()} instead. */
+    @java.lang.Deprecated
+    java.util.Map<
+            java.lang.String,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue>
+        getParameters();
+    /**
+     *
+     *
+     * <pre>
+     * Parameters identified as a result of intent matching. This is a map of
+     * the name of the identified parameter to the value of the parameter
+     * identified from the user's utterance. All parameters defined in the
+     * matched intent that are identified will be surfaced here.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue&gt; parameters = 2;
+     * </code>
+     */
+    java.util.Map<
+            java.lang.String,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue>
+        getParametersMap();
+    /**
+     *
+     *
+     * <pre>
+     * Parameters identified as a result of intent matching. This is a map of
+     * the name of the identified parameter to the value of the parameter
+     * identified from the user's utterance. All parameters defined in the
+     * matched intent that are identified will be surfaced here.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue&gt; parameters = 2;
+     * </code>
+     */
+    com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue
+        getParametersOrDefault(
+            java.lang.String key,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue
+                defaultValue);
+    /**
+     *
+     *
+     * <pre>
+     * Parameters identified as a result of intent matching. This is a map of
+     * the name of the identified parameter to the value of the parameter
+     * identified from the user's utterance. All parameters defined in the
+     * matched intent that are identified will be surfaced here.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue&gt; parameters = 2;
+     * </code>
+     */
+    com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue
+        getParametersOrThrow(java.lang.String key);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents intent information communicated to the webhook.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo}
+   */
+  public static final class IntentInfo extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo)
+      IntentInfoOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use IntentInfo.newBuilder() to construct.
+    private IntentInfo(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+
+    private IntentInfo() {
+      lastMatchedIntent_ = "";
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new IntentInfo();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private IntentInfo(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      int mutable_bitField0_ = 0;
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+
+                lastMatchedIntent_ = s;
+                break;
+              }
+            case 18:
+              {
+                if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                  parameters_ =
+                      com.google.protobuf.MapField.newMapField(
+                          ParametersDefaultEntryHolder.defaultEntry);
+                  mutable_bitField0_ |= 0x00000001;
+                }
+                com.google.protobuf.MapEntry<
+                        java.lang.String,
+                        com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+                            .IntentParameterValue>
+                    parameters__ =
+                        input.readMessage(
+                            ParametersDefaultEntryHolder.defaultEntry.getParserForType(),
+                            extensionRegistry);
+                parameters_.getMutableMap().put(parameters__.getKey(), parameters__.getValue());
+                break;
+              }
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_descriptor;
+    }
+
+    @SuppressWarnings({"rawtypes"})
+    @java.lang.Override
+    protected com.google.protobuf.MapField internalGetMapField(int number) {
+      switch (number) {
+        case 2:
+          return internalGetParameters();
+        default:
+          throw new RuntimeException("Invalid map field number: " + number);
+      }
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.class,
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.Builder.class);
+    }
+
+    public interface IntentParameterValueOrBuilder
+        extends
+        // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue)
+        com.google.protobuf.MessageOrBuilder {
+
+      /**
+       *
+       *
+       * <pre>
+       * Always present. Original text value extracted from user utterance.
+       * </pre>
+       *
+       * <code>string original_value = 1;</code>
+       *
+       * @return The originalValue.
+       */
+      java.lang.String getOriginalValue();
+      /**
+       *
+       *
+       * <pre>
+       * Always present. Original text value extracted from user utterance.
+       * </pre>
+       *
+       * <code>string original_value = 1;</code>
+       *
+       * @return The bytes for originalValue.
+       */
+      com.google.protobuf.ByteString getOriginalValueBytes();
+
+      /**
+       *
+       *
+       * <pre>
+       * Always present. Structured value for the parameter extracted from user
+       * utterance.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value resolved_value = 2;</code>
+       *
+       * @return Whether the resolvedValue field is set.
+       */
+      boolean hasResolvedValue();
+      /**
+       *
+       *
+       * <pre>
+       * Always present. Structured value for the parameter extracted from user
+       * utterance.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value resolved_value = 2;</code>
+       *
+       * @return The resolvedValue.
+       */
+      com.google.protobuf.Value getResolvedValue();
+      /**
+       *
+       *
+       * <pre>
+       * Always present. Structured value for the parameter extracted from user
+       * utterance.
+       * </pre>
+       *
+       * <code>.google.protobuf.Value resolved_value = 2;</code>
+       */
+      com.google.protobuf.ValueOrBuilder getResolvedValueOrBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents a value for an intent parameter.
+     * </pre>
+     *
+     * Protobuf type {@code
+     * google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue}
+     */
+    public static final class IntentParameterValue extends com.google.protobuf.GeneratedMessageV3
+        implements
+        // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue)
+        IntentParameterValueOrBuilder {
+      private static final long serialVersionUID = 0L;
+      // Use IntentParameterValue.newBuilder() to construct.
+      private IntentParameterValue(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+        super(builder);
+      }
+
+      private IntentParameterValue() {
+        originalValue_ = "";
+      }
+
+      @java.lang.Override
+      @SuppressWarnings({"unused"})
+      protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+        return new IntentParameterValue();
+      }
+
+      @java.lang.Override
+      public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+        return this.unknownFields;
+      }
+
+      private IntentParameterValue(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        this();
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
+        com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+            com.google.protobuf.UnknownFieldSet.newBuilder();
+        try {
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  java.lang.String s = input.readStringRequireUtf8();
+
+                  originalValue_ = s;
+                  break;
+                }
+              case 18:
+                {
+                  com.google.protobuf.Value.Builder subBuilder = null;
+                  if (resolvedValue_ != null) {
+                    subBuilder = resolvedValue_.toBuilder();
+                  }
+                  resolvedValue_ =
+                      input.readMessage(com.google.protobuf.Value.parser(), extensionRegistry);
+                  if (subBuilder != null) {
+                    subBuilder.mergeFrom(resolvedValue_);
+                    resolvedValue_ = subBuilder.buildPartial();
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+        if (!(obj
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+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+                .IntentParameterValue)) {
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+        int hash = 41;
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+      public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+              .IntentParameterValue
+          parseFrom(java.nio.ByteBuffer data)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+              .IntentParameterValue
+          parseFrom(
+              java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+              .IntentParameterValue
+          parseFrom(com.google.protobuf.ByteString data)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+              .IntentParameterValue
+          parseFrom(
+              com.google.protobuf.ByteString data,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+              .IntentParameterValue
+          parseFrom(byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+              .IntentParameterValue
+          parseFrom(byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+              .IntentParameterValue
+          parseFrom(java.io.InputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
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+
+      public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+              .IntentParameterValue
+          parseFrom(
+              java.io.InputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
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+
+      public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+              .IntentParameterValue
+          parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+              .IntentParameterValue
+          parseDelimitedFrom(
+              java.io.InputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+            PARSER, input, extensionRegistry);
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+
+      public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+              .IntentParameterValue
+          parseFrom(com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+              .IntentParameterValue
+          parseFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      @java.lang.Override
+      public Builder newBuilderForType() {
+        return newBuilder();
+      }
+
+      public static Builder newBuilder() {
+        return DEFAULT_INSTANCE.toBuilder();
+      }
+
+      public static Builder newBuilder(
+          com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue
+              prototype) {
+        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+      }
+
+      @java.lang.Override
+      public Builder toBuilder() {
+        return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+      }
+
+      @java.lang.Override
+      protected Builder newBuilderForType(
+          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        Builder builder = new Builder(parent);
+        return builder;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Represents a value for an intent parameter.
+       * </pre>
+       *
+       * Protobuf type {@code
+       * google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue}
+       */
+      public static final class Builder
+          extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+          implements
+          // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue)
+          com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+              .IntentParameterValueOrBuilder {
+        public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+          return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+              .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_IntentParameterValue_descriptor;
+        }
+
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+              .ensureFieldAccessorsInitialized(
+                  com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+                      .IntentParameterValue.class,
+                  com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+                      .IntentParameterValue.Builder.class);
+        }
+
+        // Construct using
+        // com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue.newBuilder()
+        private Builder() {
+          maybeForceBuilderInitialization();
+        }
+
+        private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+          super(parent);
+          maybeForceBuilderInitialization();
+        }
+
+        private void maybeForceBuilderInitialization() {
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+        @java.lang.Override
+        public Builder clear() {
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+          originalValue_ = "";
+
+          if (resolvedValueBuilder_ == null) {
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+          } else {
+            resolvedValue_ = null;
+            resolvedValueBuilder_ = null;
+          }
+          return this;
+        }
+
+        @java.lang.Override
+        public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+          return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+              .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_IntentParameterValue_descriptor;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue
+            getDefaultInstanceForType() {
+          return com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+              .IntentParameterValue.getDefaultInstance();
+        }
+
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue
+            build() {
+          com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue
+              result = buildPartial();
+          if (!result.isInitialized()) {
+            throw newUninitializedMessageException(result);
+          }
+          return result;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue
+            buildPartial() {
+          com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue
+              result =
+                  new com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+                      .IntentParameterValue(this);
+          result.originalValue_ = originalValue_;
+          if (resolvedValueBuilder_ == null) {
+            result.resolvedValue_ = resolvedValue_;
+          } else {
+            result.resolvedValue_ = resolvedValueBuilder_.build();
+          }
+          onBuilt();
+          return result;
+        }
+
+        @java.lang.Override
+        public Builder clone() {
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+        }
+
+        @java.lang.Override
+        public Builder setField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
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+        @java.lang.Override
+        public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
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+        }
+
+        @java.lang.Override
+        public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+          return super.clearOneof(oneof);
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+
+        @java.lang.Override
+        public Builder setRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field,
+            int index,
+            java.lang.Object value) {
+          return super.setRepeatedField(field, index, value);
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+
+        @java.lang.Override
+        public Builder addRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.addRepeatedField(field, value);
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+
+        @java.lang.Override
+        public Builder mergeFrom(com.google.protobuf.Message other) {
+          if (other
+              instanceof
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+                  .IntentParameterValue) {
+            return mergeFrom(
+                (com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+                        .IntentParameterValue)
+                    other);
+          } else {
+            super.mergeFrom(other);
+            return this;
+          }
+        }
+
+        public Builder mergeFrom(
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue
+                other) {
+          if (other
+              == com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+                  .IntentParameterValue.getDefaultInstance()) return this;
+          if (!other.getOriginalValue().isEmpty()) {
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+            onChanged();
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+          if (other.hasResolvedValue()) {
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+          this.mergeUnknownFields(other.unknownFields);
+          onChanged();
+          return this;
+        }
+
+        @java.lang.Override
+        public final boolean isInitialized() {
+          return true;
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+          com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue
+              parsedMessage = null;
+          try {
+            parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            parsedMessage =
+                (com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+                        .IntentParameterValue)
+                    e.getUnfinishedMessage();
+            throw e.unwrapIOException();
+          } finally {
+            if (parsedMessage != null) {
+              mergeFrom(parsedMessage);
+            }
+          }
+          return this;
+        }
+
+        private java.lang.Object originalValue_ = "";
+        /**
+         *
+         *
+         * <pre>
+         * Always present. Original text value extracted from user utterance.
+         * </pre>
+         *
+         * <code>string original_value = 1;</code>
+         *
+         * @return The originalValue.
+         */
+        public java.lang.String getOriginalValue() {
+          java.lang.Object ref = originalValue_;
+          if (!(ref instanceof java.lang.String)) {
+            com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+            java.lang.String s = bs.toStringUtf8();
+            originalValue_ = s;
+            return s;
+          } else {
+            return (java.lang.String) ref;
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Always present. Original text value extracted from user utterance.
+         * </pre>
+         *
+         * <code>string original_value = 1;</code>
+         *
+         * @return The bytes for originalValue.
+         */
+        public com.google.protobuf.ByteString getOriginalValueBytes() {
+          java.lang.Object ref = originalValue_;
+          if (ref instanceof String) {
+            com.google.protobuf.ByteString b =
+                com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+            originalValue_ = b;
+            return b;
+          } else {
+            return (com.google.protobuf.ByteString) ref;
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Always present. Original text value extracted from user utterance.
+         * </pre>
+         *
+         * <code>string original_value = 1;</code>
+         *
+         * @param value The originalValue to set.
+         * @return This builder for chaining.
+         */
+        public Builder setOriginalValue(java.lang.String value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+
+          originalValue_ = value;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Always present. Original text value extracted from user utterance.
+         * </pre>
+         *
+         * <code>string original_value = 1;</code>
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearOriginalValue() {
+
+          originalValue_ = getDefaultInstance().getOriginalValue();
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Always present. Original text value extracted from user utterance.
+         * </pre>
+         *
+         * <code>string original_value = 1;</code>
+         *
+         * @param value The bytes for originalValue to set.
+         * @return This builder for chaining.
+         */
+        public Builder setOriginalValueBytes(com.google.protobuf.ByteString value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          checkByteStringIsUtf8(value);
+
+          originalValue_ = value;
+          onChanged();
+          return this;
+        }
+
+        private com.google.protobuf.Value resolvedValue_;
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.Value,
+                com.google.protobuf.Value.Builder,
+                com.google.protobuf.ValueOrBuilder>
+            resolvedValueBuilder_;
+        /**
+         *
+         *
+         * <pre>
+         * Always present. Structured value for the parameter extracted from user
+         * utterance.
+         * </pre>
+         *
+         * <code>.google.protobuf.Value resolved_value = 2;</code>
+         *
+         * @return Whether the resolvedValue field is set.
+         */
+        public boolean hasResolvedValue() {
+          return resolvedValueBuilder_ != null || resolvedValue_ != null;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Always present. Structured value for the parameter extracted from user
+         * utterance.
+         * </pre>
+         *
+         * <code>.google.protobuf.Value resolved_value = 2;</code>
+         *
+         * @return The resolvedValue.
+         */
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+          if (resolvedValueBuilder_ == null) {
+            return resolvedValue_ == null
+                ? com.google.protobuf.Value.getDefaultInstance()
+                : resolvedValue_;
+          } else {
+            return resolvedValueBuilder_.getMessage();
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Always present. Structured value for the parameter extracted from user
+         * utterance.
+         * </pre>
+         *
+         * <code>.google.protobuf.Value resolved_value = 2;</code>
+         */
+        public Builder setResolvedValue(com.google.protobuf.Value value) {
+          if (resolvedValueBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            resolvedValue_ = value;
+            onChanged();
+          } else {
+            resolvedValueBuilder_.setMessage(value);
+          }
+
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Always present. Structured value for the parameter extracted from user
+         * utterance.
+         * </pre>
+         *
+         * <code>.google.protobuf.Value resolved_value = 2;</code>
+         */
+        public Builder setResolvedValue(com.google.protobuf.Value.Builder builderForValue) {
+          if (resolvedValueBuilder_ == null) {
+            resolvedValue_ = builderForValue.build();
+            onChanged();
+          } else {
+            resolvedValueBuilder_.setMessage(builderForValue.build());
+          }
+
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Always present. Structured value for the parameter extracted from user
+         * utterance.
+         * </pre>
+         *
+         * <code>.google.protobuf.Value resolved_value = 2;</code>
+         */
+        public Builder mergeResolvedValue(com.google.protobuf.Value value) {
+          if (resolvedValueBuilder_ == null) {
+            if (resolvedValue_ != null) {
+              resolvedValue_ =
+                  com.google.protobuf.Value.newBuilder(resolvedValue_)
+                      .mergeFrom(value)
+                      .buildPartial();
+            } else {
+              resolvedValue_ = value;
+            }
+            onChanged();
+          } else {
+            resolvedValueBuilder_.mergeFrom(value);
+          }
+
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Always present. Structured value for the parameter extracted from user
+         * utterance.
+         * </pre>
+         *
+         * <code>.google.protobuf.Value resolved_value = 2;</code>
+         */
+        public Builder clearResolvedValue() {
+          if (resolvedValueBuilder_ == null) {
+            resolvedValue_ = null;
+            onChanged();
+          } else {
+            resolvedValue_ = null;
+            resolvedValueBuilder_ = null;
+          }
+
+          return this;
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Always present. Structured value for the parameter extracted from user
+         * utterance.
+         * </pre>
+         *
+         * <code>.google.protobuf.Value resolved_value = 2;</code>
+         */
+        public com.google.protobuf.Value.Builder getResolvedValueBuilder() {
+
+          onChanged();
+          return getResolvedValueFieldBuilder().getBuilder();
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Always present. Structured value for the parameter extracted from user
+         * utterance.
+         * </pre>
+         *
+         * <code>.google.protobuf.Value resolved_value = 2;</code>
+         */
+        public com.google.protobuf.ValueOrBuilder getResolvedValueOrBuilder() {
+          if (resolvedValueBuilder_ != null) {
+            return resolvedValueBuilder_.getMessageOrBuilder();
+          } else {
+            return resolvedValue_ == null
+                ? com.google.protobuf.Value.getDefaultInstance()
+                : resolvedValue_;
+          }
+        }
+        /**
+         *
+         *
+         * <pre>
+         * Always present. Structured value for the parameter extracted from user
+         * utterance.
+         * </pre>
+         *
+         * <code>.google.protobuf.Value resolved_value = 2;</code>
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.Value,
+                com.google.protobuf.Value.Builder,
+                com.google.protobuf.ValueOrBuilder>
+            getResolvedValueFieldBuilder() {
+          if (resolvedValueBuilder_ == null) {
+            resolvedValueBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.protobuf.Value,
+                    com.google.protobuf.Value.Builder,
+                    com.google.protobuf.ValueOrBuilder>(
+                    getResolvedValue(), getParentForChildren(), isClean());
+            resolvedValue_ = null;
+          }
+          return resolvedValueBuilder_;
+        }
+
+        @java.lang.Override
+        public final Builder setUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.setUnknownFields(unknownFields);
+        }
+
+        @java.lang.Override
+        public final Builder mergeUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.mergeUnknownFields(unknownFields);
+        }
+
+        // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue)
+      }
+
+      // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue)
+      private static final com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+              .IntentParameterValue
+          DEFAULT_INSTANCE;
+
+      static {
+        DEFAULT_INSTANCE =
+            new com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+                .IntentParameterValue();
+      }
+
+      public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+              .IntentParameterValue
+          getDefaultInstance() {
+        return DEFAULT_INSTANCE;
+      }
+
+      private static final com.google.protobuf.Parser<IntentParameterValue> PARSER =
+          new com.google.protobuf.AbstractParser<IntentParameterValue>() {
+            @java.lang.Override
+            public IntentParameterValue parsePartialFrom(
+                com.google.protobuf.CodedInputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+              return new IntentParameterValue(input, extensionRegistry);
+            }
+          };
+
+      public static com.google.protobuf.Parser<IntentParameterValue> parser() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Parser<IntentParameterValue> getParserForType() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue
+          getDefaultInstanceForType() {
+        return DEFAULT_INSTANCE;
+      }
+    }
+
+    public static final int LAST_MATCHED_INTENT_FIELD_NUMBER = 1;
+    private volatile java.lang.Object lastMatchedIntent_;
+    /**
+     *
+     *
+     * <pre>
+     * Always present. The unique identifier of the last matched
+     * [intent][google.cloud.dialogflow.cx.v3beta1.Intent]. Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+     * ID&gt;/agents/&lt;Agent ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>string last_matched_intent = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The lastMatchedIntent.
+     */
+    @java.lang.Override
+    public java.lang.String getLastMatchedIntent() {
+      java.lang.Object ref = lastMatchedIntent_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        lastMatchedIntent_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Always present. The unique identifier of the last matched
+     * [intent][google.cloud.dialogflow.cx.v3beta1.Intent]. Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+     * ID&gt;/agents/&lt;Agent ID&gt;/intents/&lt;Intent ID&gt;`.
+     * </pre>
+     *
+     * <code>string last_matched_intent = 1 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The bytes for lastMatchedIntent.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getLastMatchedIntentBytes() {
+      java.lang.Object ref = lastMatchedIntent_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        lastMatchedIntent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    public static final int PARAMETERS_FIELD_NUMBER = 2;
+
+    private static final class ParametersDefaultEntryHolder {
+      static final com.google.protobuf.MapEntry<
+              java.lang.String,
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue>
+          defaultEntry =
+              com.google.protobuf.MapEntry
+                  .<java.lang.String,
+                      com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+                          .IntentParameterValue>
+                      newDefaultInstance(
+                          com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+                              .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_ParametersEntry_descriptor,
+                          com.google.protobuf.WireFormat.FieldType.STRING,
+                          "",
+                          com.google.protobuf.WireFormat.FieldType.MESSAGE,
+                          com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+                              .IntentParameterValue.getDefaultInstance());
+    }
+
+    private com.google.protobuf.MapField<
+            java.lang.String,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue>
+        parameters_;
+
+    private com.google.protobuf.MapField<
+            java.lang.String,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue>
+        internalGetParameters() {
+      if (parameters_ == null) {
+        return com.google.protobuf.MapField.emptyMapField(
+            ParametersDefaultEntryHolder.defaultEntry);
+      }
+      return parameters_;
+    }
+
+    public int getParametersCount() {
+      return internalGetParameters().getMap().size();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Parameters identified as a result of intent matching. This is a map of
+     * the name of the identified parameter to the value of the parameter
+     * identified from the user's utterance. All parameters defined in the
+     * matched intent that are identified will be surfaced here.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue&gt; parameters = 2;
+     * </code>
+     */
+    @java.lang.Override
+    public boolean containsParameters(java.lang.String key) {
+      if (key == null) {
+        throw new java.lang.NullPointerException();
+      }
+      return internalGetParameters().getMap().containsKey(key);
+    }
+    /** Use {@link #getParametersMap()} instead. */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public java.util.Map<
+            java.lang.String,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue>
+        getParameters() {
+      return getParametersMap();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Parameters identified as a result of intent matching. This is a map of
+     * the name of the identified parameter to the value of the parameter
+     * identified from the user's utterance. All parameters defined in the
+     * matched intent that are identified will be surfaced here.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue&gt; parameters = 2;
+     * </code>
+     */
+    @java.lang.Override
+    public java.util.Map<
+            java.lang.String,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue>
+        getParametersMap() {
+      return internalGetParameters().getMap();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Parameters identified as a result of intent matching. This is a map of
+     * the name of the identified parameter to the value of the parameter
+     * identified from the user's utterance. All parameters defined in the
+     * matched intent that are identified will be surfaced here.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue&gt; parameters = 2;
+     * </code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue
+        getParametersOrDefault(
+            java.lang.String key,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue
+                defaultValue) {
+      if (key == null) {
+        throw new java.lang.NullPointerException();
+      }
+      java.util.Map<
+              java.lang.String,
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue>
+          map = internalGetParameters().getMap();
+      return map.containsKey(key) ? map.get(key) : defaultValue;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Parameters identified as a result of intent matching. This is a map of
+     * the name of the identified parameter to the value of the parameter
+     * identified from the user's utterance. All parameters defined in the
+     * matched intent that are identified will be surfaced here.
+     * </pre>
+     *
+     * <code>
+     * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue&gt; parameters = 2;
+     * </code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue
+        getParametersOrThrow(java.lang.String key) {
+      if (key == null) {
+        throw new java.lang.NullPointerException();
+      }
+      java.util.Map<
+              java.lang.String,
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue>
+          map = internalGetParameters().getMap();
+      if (!map.containsKey(key)) {
+        throw new java.lang.IllegalArgumentException();
+      }
+      return map.get(key);
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (!getLastMatchedIntentBytes().isEmpty()) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, lastMatchedIntent_);
+      }
+      com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
+          output, internalGetParameters(), ParametersDefaultEntryHolder.defaultEntry, 2);
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (!getLastMatchedIntentBytes().isEmpty()) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, lastMatchedIntent_);
+      }
+      for (java.util.Map.Entry<
+              java.lang.String,
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue>
+          entry : internalGetParameters().getMap().entrySet()) {
+        com.google.protobuf.MapEntry<
+                java.lang.String,
+                com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+                    .IntentParameterValue>
+            parameters__ =
+                ParametersDefaultEntryHolder.defaultEntry
+                    .newBuilderForType()
+                    .setKey(entry.getKey())
+                    .setValue(entry.getValue())
+                    .build();
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, parameters__);
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo other =
+          (com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo) obj;
+
+      if (!getLastMatchedIntent().equals(other.getLastMatchedIntent())) return false;
+      if (!internalGetParameters().equals(other.internalGetParameters())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + LAST_MATCHED_INTENT_FIELD_NUMBER;
+      hash = (53 * hash) + getLastMatchedIntent().hashCode();
+      if (!internalGetParameters().getMap().isEmpty()) {
+        hash = (37 * hash) + PARAMETERS_FIELD_NUMBER;
+        hash = (53 * hash) + internalGetParameters().hashCode();
+      }
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo parseFrom(
+        byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents intent information communicated to the webhook.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo)
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfoOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_descriptor;
+      }
+
+      @SuppressWarnings({"rawtypes"})
+      protected com.google.protobuf.MapField internalGetMapField(int number) {
+        switch (number) {
+          case 2:
+            return internalGetParameters();
+          default:
+            throw new RuntimeException("Invalid map field number: " + number);
+        }
+      }
+
+      @SuppressWarnings({"rawtypes"})
+      protected com.google.protobuf.MapField internalGetMutableMapField(int number) {
+        switch (number) {
+          case 2:
+            return internalGetMutableParameters();
+          default:
+            throw new RuntimeException("Invalid map field number: " + number);
+        }
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.class,
+                com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.Builder.class);
+      }
+
+      // Construct using
+      // com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        lastMatchedIntent_ = "";
+
+        internalGetMutableParameters().clear();
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_IntentInfo_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+          getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+            .getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo build() {
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo buildPartial() {
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo result =
+            new com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo(this);
+        int from_bitField0_ = bitField0_;
+        result.lastMatchedIntent_ = lastMatchedIntent_;
+        result.parameters_ = internalGetParameters();
+        result.parameters_.makeImmutable();
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo) {
+          return mergeFrom(
+              (com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo other) {
+        if (other
+            == com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+                .getDefaultInstance()) return this;
+        if (!other.getLastMatchedIntent().isEmpty()) {
+          lastMatchedIntent_ = other.lastMatchedIntent_;
+          onChanged();
+        }
+        internalGetMutableParameters().mergeFrom(other.internalGetParameters());
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo)
+                  e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private int bitField0_;
+
+      private java.lang.Object lastMatchedIntent_ = "";
+      /**
+       *
+       *
+       * <pre>
+       * Always present. The unique identifier of the last matched
+       * [intent][google.cloud.dialogflow.cx.v3beta1.Intent]. Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+       * ID&gt;/agents/&lt;Agent ID&gt;/intents/&lt;Intent ID&gt;`.
+       * </pre>
+       *
+       * <code>string last_matched_intent = 1 [(.google.api.resource_reference) = { ... }</code>
+       *
+       * @return The lastMatchedIntent.
+       */
+      public java.lang.String getLastMatchedIntent() {
+        java.lang.Object ref = lastMatchedIntent_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          lastMatchedIntent_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Always present. The unique identifier of the last matched
+       * [intent][google.cloud.dialogflow.cx.v3beta1.Intent]. Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+       * ID&gt;/agents/&lt;Agent ID&gt;/intents/&lt;Intent ID&gt;`.
+       * </pre>
+       *
+       * <code>string last_matched_intent = 1 [(.google.api.resource_reference) = { ... }</code>
+       *
+       * @return The bytes for lastMatchedIntent.
+       */
+      public com.google.protobuf.ByteString getLastMatchedIntentBytes() {
+        java.lang.Object ref = lastMatchedIntent_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          lastMatchedIntent_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Always present. The unique identifier of the last matched
+       * [intent][google.cloud.dialogflow.cx.v3beta1.Intent]. Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+       * ID&gt;/agents/&lt;Agent ID&gt;/intents/&lt;Intent ID&gt;`.
+       * </pre>
+       *
+       * <code>string last_matched_intent = 1 [(.google.api.resource_reference) = { ... }</code>
+       *
+       * @param value The lastMatchedIntent to set.
+       * @return This builder for chaining.
+       */
+      public Builder setLastMatchedIntent(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+
+        lastMatchedIntent_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Always present. The unique identifier of the last matched
+       * [intent][google.cloud.dialogflow.cx.v3beta1.Intent]. Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+       * ID&gt;/agents/&lt;Agent ID&gt;/intents/&lt;Intent ID&gt;`.
+       * </pre>
+       *
+       * <code>string last_matched_intent = 1 [(.google.api.resource_reference) = { ... }</code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearLastMatchedIntent() {
+
+        lastMatchedIntent_ = getDefaultInstance().getLastMatchedIntent();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Always present. The unique identifier of the last matched
+       * [intent][google.cloud.dialogflow.cx.v3beta1.Intent]. Format: `projects/&lt;Project ID&gt;/locations/&lt;Location
+       * ID&gt;/agents/&lt;Agent ID&gt;/intents/&lt;Intent ID&gt;`.
+       * </pre>
+       *
+       * <code>string last_matched_intent = 1 [(.google.api.resource_reference) = { ... }</code>
+       *
+       * @param value The bytes for lastMatchedIntent to set.
+       * @return This builder for chaining.
+       */
+      public Builder setLastMatchedIntentBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+
+        lastMatchedIntent_ = value;
+        onChanged();
+        return this;
+      }
+
+      private com.google.protobuf.MapField<
+              java.lang.String,
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue>
+          parameters_;
+
+      private com.google.protobuf.MapField<
+              java.lang.String,
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue>
+          internalGetParameters() {
+        if (parameters_ == null) {
+          return com.google.protobuf.MapField.emptyMapField(
+              ParametersDefaultEntryHolder.defaultEntry);
+        }
+        return parameters_;
+      }
+
+      private com.google.protobuf.MapField<
+              java.lang.String,
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue>
+          internalGetMutableParameters() {
+        onChanged();
+        ;
+        if (parameters_ == null) {
+          parameters_ =
+              com.google.protobuf.MapField.newMapField(ParametersDefaultEntryHolder.defaultEntry);
+        }
+        if (!parameters_.isMutable()) {
+          parameters_ = parameters_.copy();
+        }
+        return parameters_;
+      }
+
+      public int getParametersCount() {
+        return internalGetParameters().getMap().size();
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Parameters identified as a result of intent matching. This is a map of
+       * the name of the identified parameter to the value of the parameter
+       * identified from the user's utterance. All parameters defined in the
+       * matched intent that are identified will be surfaced here.
+       * </pre>
+       *
+       * <code>
+       * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue&gt; parameters = 2;
+       * </code>
+       */
+      @java.lang.Override
+      public boolean containsParameters(java.lang.String key) {
+        if (key == null) {
+          throw new java.lang.NullPointerException();
+        }
+        return internalGetParameters().getMap().containsKey(key);
+      }
+      /** Use {@link #getParametersMap()} instead. */
+      @java.lang.Override
+      @java.lang.Deprecated
+      public java.util.Map<
+              java.lang.String,
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue>
+          getParameters() {
+        return getParametersMap();
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Parameters identified as a result of intent matching. This is a map of
+       * the name of the identified parameter to the value of the parameter
+       * identified from the user's utterance. All parameters defined in the
+       * matched intent that are identified will be surfaced here.
+       * </pre>
+       *
+       * <code>
+       * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue&gt; parameters = 2;
+       * </code>
+       */
+      @java.lang.Override
+      public java.util.Map<
+              java.lang.String,
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue>
+          getParametersMap() {
+        return internalGetParameters().getMap();
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Parameters identified as a result of intent matching. This is a map of
+       * the name of the identified parameter to the value of the parameter
+       * identified from the user's utterance. All parameters defined in the
+       * matched intent that are identified will be surfaced here.
+       * </pre>
+       *
+       * <code>
+       * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue&gt; parameters = 2;
+       * </code>
+       */
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue
+          getParametersOrDefault(
+              java.lang.String key,
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue
+                  defaultValue) {
+        if (key == null) {
+          throw new java.lang.NullPointerException();
+        }
+        java.util.Map<
+                java.lang.String,
+                com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+                    .IntentParameterValue>
+            map = internalGetParameters().getMap();
+        return map.containsKey(key) ? map.get(key) : defaultValue;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Parameters identified as a result of intent matching. This is a map of
+       * the name of the identified parameter to the value of the parameter
+       * identified from the user's utterance. All parameters defined in the
+       * matched intent that are identified will be surfaced here.
+       * </pre>
+       *
+       * <code>
+       * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue&gt; parameters = 2;
+       * </code>
+       */
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue
+          getParametersOrThrow(java.lang.String key) {
+        if (key == null) {
+          throw new java.lang.NullPointerException();
+        }
+        java.util.Map<
+                java.lang.String,
+                com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+                    .IntentParameterValue>
+            map = internalGetParameters().getMap();
+        if (!map.containsKey(key)) {
+          throw new java.lang.IllegalArgumentException();
+        }
+        return map.get(key);
+      }
+
+      public Builder clearParameters() {
+        internalGetMutableParameters().getMutableMap().clear();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Parameters identified as a result of intent matching. This is a map of
+       * the name of the identified parameter to the value of the parameter
+       * identified from the user's utterance. All parameters defined in the
+       * matched intent that are identified will be surfaced here.
+       * </pre>
+       *
+       * <code>
+       * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue&gt; parameters = 2;
+       * </code>
+       */
+      public Builder removeParameters(java.lang.String key) {
+        if (key == null) {
+          throw new java.lang.NullPointerException();
+        }
+        internalGetMutableParameters().getMutableMap().remove(key);
+        return this;
+      }
+      /** Use alternate mutation accessors instead. */
+      @java.lang.Deprecated
+      public java.util.Map<
+              java.lang.String,
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue>
+          getMutableParameters() {
+        return internalGetMutableParameters().getMutableMap();
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Parameters identified as a result of intent matching. This is a map of
+       * the name of the identified parameter to the value of the parameter
+       * identified from the user's utterance. All parameters defined in the
+       * matched intent that are identified will be surfaced here.
+       * </pre>
+       *
+       * <code>
+       * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue&gt; parameters = 2;
+       * </code>
+       */
+      public Builder putParameters(
+          java.lang.String key,
+          com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue
+              value) {
+        if (key == null) {
+          throw new java.lang.NullPointerException();
+        }
+        if (value == null) {
+          throw new java.lang.NullPointerException();
+        }
+        internalGetMutableParameters().getMutableMap().put(key, value);
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Parameters identified as a result of intent matching. This is a map of
+       * the name of the identified parameter to the value of the parameter
+       * identified from the user's utterance. All parameters defined in the
+       * matched intent that are identified will be surfaced here.
+       * </pre>
+       *
+       * <code>
+       * map&lt;string, .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.IntentParameterValue&gt; parameters = 2;
+       * </code>
+       */
+      public Builder putAllParameters(
+          java.util.Map<
+                  java.lang.String,
+                  com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+                      .IntentParameterValue>
+              values) {
+        internalGetMutableParameters().getMutableMap().putAll(values);
+        return this;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo)
+    private static final com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo();
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<IntentInfo> PARSER =
+        new com.google.protobuf.AbstractParser<IntentInfo>() {
+          @java.lang.Override
+          public IntentInfo parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new IntentInfo(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser<IntentInfo> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<IntentInfo> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public static final int DETECT_INTENT_RESPONSE_ID_FIELD_NUMBER = 1;
+  private volatile java.lang.Object detectIntentResponseId_;
+  /**
+   *
+   *
+   * <pre>
+   * Always present. The unique identifier of the [DetectIntentResponse][google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse] that
+   * will be returned to the API caller.
+   * </pre>
+   *
+   * <code>string detect_intent_response_id = 1;</code>
+   *
+   * @return The detectIntentResponseId.
+   */
+  @java.lang.Override
+  public java.lang.String getDetectIntentResponseId() {
+    java.lang.Object ref = detectIntentResponseId_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      detectIntentResponseId_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Always present. The unique identifier of the [DetectIntentResponse][google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse] that
+   * will be returned to the API caller.
+   * </pre>
+   *
+   * <code>string detect_intent_response_id = 1;</code>
+   *
+   * @return The bytes for detectIntentResponseId.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getDetectIntentResponseIdBytes() {
+    java.lang.Object ref = detectIntentResponseId_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      detectIntentResponseId_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int FULFILLMENT_INFO_FIELD_NUMBER = 6;
+  private com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo fulfillmentInfo_;
+  /**
+   *
+   *
+   * <pre>
+   * Always present. Information about the fulfillment that triggered this
+   * webhook call.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo fulfillment_info = 6;
+   * </code>
+   *
+   * @return Whether the fulfillmentInfo field is set.
+   */
+  @java.lang.Override
+  public boolean hasFulfillmentInfo() {
+    return fulfillmentInfo_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Always present. Information about the fulfillment that triggered this
+   * webhook call.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo fulfillment_info = 6;
+   * </code>
+   *
+   * @return The fulfillmentInfo.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo
+      getFulfillmentInfo() {
+    return fulfillmentInfo_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo.getDefaultInstance()
+        : fulfillmentInfo_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Always present. Information about the fulfillment that triggered this
+   * webhook call.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo fulfillment_info = 6;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfoOrBuilder
+      getFulfillmentInfoOrBuilder() {
+    return getFulfillmentInfo();
+  }
+
+  public static final int INTENT_INFO_FIELD_NUMBER = 3;
+  private com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo intentInfo_;
+  /**
+   *
+   *
+   * <pre>
+   * Information about the last matched intent.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo intent_info = 3;</code>
+   *
+   * @return Whether the intentInfo field is set.
+   */
+  @java.lang.Override
+  public boolean hasIntentInfo() {
+    return intentInfo_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Information about the last matched intent.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo intent_info = 3;</code>
+   *
+   * @return The intentInfo.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo getIntentInfo() {
+    return intentInfo_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.getDefaultInstance()
+        : intentInfo_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Information about the last matched intent.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo intent_info = 3;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfoOrBuilder
+      getIntentInfoOrBuilder() {
+    return getIntentInfo();
+  }
+
+  public static final int PAGE_INFO_FIELD_NUMBER = 4;
+  private com.google.cloud.dialogflow.cx.v3beta1.PageInfo pageInfo_;
+  /**
+   *
+   *
+   * <pre>
+   * Information about page status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 4;</code>
+   *
+   * @return Whether the pageInfo field is set.
+   */
+  @java.lang.Override
+  public boolean hasPageInfo() {
+    return pageInfo_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Information about page status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 4;</code>
+   *
+   * @return The pageInfo.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.PageInfo getPageInfo() {
+    return pageInfo_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.PageInfo.getDefaultInstance()
+        : pageInfo_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Information about page status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 4;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.PageInfoOrBuilder getPageInfoOrBuilder() {
+    return getPageInfo();
+  }
+
+  public static final int SESSION_INFO_FIELD_NUMBER = 5;
+  private com.google.cloud.dialogflow.cx.v3beta1.SessionInfo sessionInfo_;
+  /**
+   *
+   *
+   * <pre>
+   * Information about session status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 5;</code>
+   *
+   * @return Whether the sessionInfo field is set.
+   */
+  @java.lang.Override
+  public boolean hasSessionInfo() {
+    return sessionInfo_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Information about session status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 5;</code>
+   *
+   * @return The sessionInfo.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SessionInfo getSessionInfo() {
+    return sessionInfo_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.getDefaultInstance()
+        : sessionInfo_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Information about session status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 5;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SessionInfoOrBuilder getSessionInfoOrBuilder() {
+    return getSessionInfo();
+  }
+
+  public static final int MESSAGES_FIELD_NUMBER = 7;
+  private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage> messages_;
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich message responses to present to the user. Webhook can
+   * choose to append or replace this list in
+   * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage> getMessagesList() {
+    return messages_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich message responses to present to the user. Webhook can
+   * choose to append or replace this list in
+   * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>
+      getMessagesOrBuilderList() {
+    return messages_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich message responses to present to the user. Webhook can
+   * choose to append or replace this list in
+   * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+   */
+  @java.lang.Override
+  public int getMessagesCount() {
+    return messages_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich message responses to present to the user. Webhook can
+   * choose to append or replace this list in
+   * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage getMessages(int index) {
+    return messages_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich message responses to present to the user. Webhook can
+   * choose to append or replace this list in
+   * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder getMessagesOrBuilder(
+      int index) {
+    return messages_.get(index);
+  }
+
+  public static final int PAYLOAD_FIELD_NUMBER = 8;
+  private com.google.protobuf.Struct payload_;
+  /**
+   *
+   *
+   * <pre>
+   * Custom data set in [QueryParameters.payload][google.cloud.dialogflow.cx.v3beta1.QueryParameters.payload].
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 8;</code>
+   *
+   * @return Whether the payload field is set.
+   */
+  @java.lang.Override
+  public boolean hasPayload() {
+    return payload_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Custom data set in [QueryParameters.payload][google.cloud.dialogflow.cx.v3beta1.QueryParameters.payload].
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 8;</code>
+   *
+   * @return The payload.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Struct getPayload() {
+    return payload_ == null ? com.google.protobuf.Struct.getDefaultInstance() : payload_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Custom data set in [QueryParameters.payload][google.cloud.dialogflow.cx.v3beta1.QueryParameters.payload].
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 8;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.StructOrBuilder getPayloadOrBuilder() {
+    return getPayload();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getDetectIntentResponseIdBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, detectIntentResponseId_);
+    }
+    if (intentInfo_ != null) {
+      output.writeMessage(3, getIntentInfo());
+    }
+    if (pageInfo_ != null) {
+      output.writeMessage(4, getPageInfo());
+    }
+    if (sessionInfo_ != null) {
+      output.writeMessage(5, getSessionInfo());
+    }
+    if (fulfillmentInfo_ != null) {
+      output.writeMessage(6, getFulfillmentInfo());
+    }
+    for (int i = 0; i < messages_.size(); i++) {
+      output.writeMessage(7, messages_.get(i));
+    }
+    if (payload_ != null) {
+      output.writeMessage(8, getPayload());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getDetectIntentResponseIdBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, detectIntentResponseId_);
+    }
+    if (intentInfo_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getIntentInfo());
+    }
+    if (pageInfo_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, getPageInfo());
+    }
+    if (sessionInfo_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, getSessionInfo());
+    }
+    if (fulfillmentInfo_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(6, getFulfillmentInfo());
+    }
+    for (int i = 0; i < messages_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(7, messages_.get(i));
+    }
+    if (payload_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(8, getPayload());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest other =
+        (com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest) obj;
+
+    if (!getDetectIntentResponseId().equals(other.getDetectIntentResponseId())) return false;
+    if (hasFulfillmentInfo() != other.hasFulfillmentInfo()) return false;
+    if (hasFulfillmentInfo()) {
+      if (!getFulfillmentInfo().equals(other.getFulfillmentInfo())) return false;
+    }
+    if (hasIntentInfo() != other.hasIntentInfo()) return false;
+    if (hasIntentInfo()) {
+      if (!getIntentInfo().equals(other.getIntentInfo())) return false;
+    }
+    if (hasPageInfo() != other.hasPageInfo()) return false;
+    if (hasPageInfo()) {
+      if (!getPageInfo().equals(other.getPageInfo())) return false;
+    }
+    if (hasSessionInfo() != other.hasSessionInfo()) return false;
+    if (hasSessionInfo()) {
+      if (!getSessionInfo().equals(other.getSessionInfo())) return false;
+    }
+    if (!getMessagesList().equals(other.getMessagesList())) return false;
+    if (hasPayload() != other.hasPayload()) return false;
+    if (hasPayload()) {
+      if (!getPayload().equals(other.getPayload())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + DETECT_INTENT_RESPONSE_ID_FIELD_NUMBER;
+    hash = (53 * hash) + getDetectIntentResponseId().hashCode();
+    if (hasFulfillmentInfo()) {
+      hash = (37 * hash) + FULFILLMENT_INFO_FIELD_NUMBER;
+      hash = (53 * hash) + getFulfillmentInfo().hashCode();
+    }
+    if (hasIntentInfo()) {
+      hash = (37 * hash) + INTENT_INFO_FIELD_NUMBER;
+      hash = (53 * hash) + getIntentInfo().hashCode();
+    }
+    if (hasPageInfo()) {
+      hash = (37 * hash) + PAGE_INFO_FIELD_NUMBER;
+      hash = (53 * hash) + getPageInfo().hashCode();
+    }
+    if (hasSessionInfo()) {
+      hash = (37 * hash) + SESSION_INFO_FIELD_NUMBER;
+      hash = (53 * hash) + getSessionInfo().hashCode();
+    }
+    if (getMessagesCount() > 0) {
+      hash = (37 * hash) + MESSAGES_FIELD_NUMBER;
+      hash = (53 * hash) + getMessagesList().hashCode();
+    }
+    if (hasPayload()) {
+      hash = (37 * hash) + PAYLOAD_FIELD_NUMBER;
+      hash = (53 * hash) + getPayload().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The request message for a webhook call.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.WebhookRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.WebhookRequest)
+      com.google.cloud.dialogflow.cx.v3beta1.WebhookRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.class,
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getMessagesFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      detectIntentResponseId_ = "";
+
+      if (fulfillmentInfoBuilder_ == null) {
+        fulfillmentInfo_ = null;
+      } else {
+        fulfillmentInfo_ = null;
+        fulfillmentInfoBuilder_ = null;
+      }
+      if (intentInfoBuilder_ == null) {
+        intentInfo_ = null;
+      } else {
+        intentInfo_ = null;
+        intentInfoBuilder_ = null;
+      }
+      if (pageInfoBuilder_ == null) {
+        pageInfo_ = null;
+      } else {
+        pageInfo_ = null;
+        pageInfoBuilder_ = null;
+      }
+      if (sessionInfoBuilder_ == null) {
+        sessionInfo_ = null;
+      } else {
+        sessionInfo_ = null;
+        sessionInfoBuilder_ = null;
+      }
+      if (messagesBuilder_ == null) {
+        messages_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        messagesBuilder_.clear();
+      }
+      if (payloadBuilder_ == null) {
+        payload_ = null;
+      } else {
+        payload_ = null;
+        payloadBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest build() {
+      com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest result =
+          new com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest(this);
+      int from_bitField0_ = bitField0_;
+      result.detectIntentResponseId_ = detectIntentResponseId_;
+      if (fulfillmentInfoBuilder_ == null) {
+        result.fulfillmentInfo_ = fulfillmentInfo_;
+      } else {
+        result.fulfillmentInfo_ = fulfillmentInfoBuilder_.build();
+      }
+      if (intentInfoBuilder_ == null) {
+        result.intentInfo_ = intentInfo_;
+      } else {
+        result.intentInfo_ = intentInfoBuilder_.build();
+      }
+      if (pageInfoBuilder_ == null) {
+        result.pageInfo_ = pageInfo_;
+      } else {
+        result.pageInfo_ = pageInfoBuilder_.build();
+      }
+      if (sessionInfoBuilder_ == null) {
+        result.sessionInfo_ = sessionInfo_;
+      } else {
+        result.sessionInfo_ = sessionInfoBuilder_.build();
+      }
+      if (messagesBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          messages_ = java.util.Collections.unmodifiableList(messages_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.messages_ = messages_;
+      } else {
+        result.messages_ = messagesBuilder_.build();
+      }
+      if (payloadBuilder_ == null) {
+        result.payload_ = payload_;
+      } else {
+        result.payload_ = payloadBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.getDefaultInstance())
+        return this;
+      if (!other.getDetectIntentResponseId().isEmpty()) {
+        detectIntentResponseId_ = other.detectIntentResponseId_;
+        onChanged();
+      }
+      if (other.hasFulfillmentInfo()) {
+        mergeFulfillmentInfo(other.getFulfillmentInfo());
+      }
+      if (other.hasIntentInfo()) {
+        mergeIntentInfo(other.getIntentInfo());
+      }
+      if (other.hasPageInfo()) {
+        mergePageInfo(other.getPageInfo());
+      }
+      if (other.hasSessionInfo()) {
+        mergeSessionInfo(other.getSessionInfo());
+      }
+      if (messagesBuilder_ == null) {
+        if (!other.messages_.isEmpty()) {
+          if (messages_.isEmpty()) {
+            messages_ = other.messages_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureMessagesIsMutable();
+            messages_.addAll(other.messages_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.messages_.isEmpty()) {
+          if (messagesBuilder_.isEmpty()) {
+            messagesBuilder_.dispose();
+            messagesBuilder_ = null;
+            messages_ = other.messages_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            messagesBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getMessagesFieldBuilder()
+                    : null;
+          } else {
+            messagesBuilder_.addAllMessages(other.messages_);
+          }
+        }
+      }
+      if (other.hasPayload()) {
+        mergePayload(other.getPayload());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.lang.Object detectIntentResponseId_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * Always present. The unique identifier of the [DetectIntentResponse][google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse] that
+     * will be returned to the API caller.
+     * </pre>
+     *
+     * <code>string detect_intent_response_id = 1;</code>
+     *
+     * @return The detectIntentResponseId.
+     */
+    public java.lang.String getDetectIntentResponseId() {
+      java.lang.Object ref = detectIntentResponseId_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        detectIntentResponseId_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Always present. The unique identifier of the [DetectIntentResponse][google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse] that
+     * will be returned to the API caller.
+     * </pre>
+     *
+     * <code>string detect_intent_response_id = 1;</code>
+     *
+     * @return The bytes for detectIntentResponseId.
+     */
+    public com.google.protobuf.ByteString getDetectIntentResponseIdBytes() {
+      java.lang.Object ref = detectIntentResponseId_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        detectIntentResponseId_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Always present. The unique identifier of the [DetectIntentResponse][google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse] that
+     * will be returned to the API caller.
+     * </pre>
+     *
+     * <code>string detect_intent_response_id = 1;</code>
+     *
+     * @param value The detectIntentResponseId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDetectIntentResponseId(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      detectIntentResponseId_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Always present. The unique identifier of the [DetectIntentResponse][google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse] that
+     * will be returned to the API caller.
+     * </pre>
+     *
+     * <code>string detect_intent_response_id = 1;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearDetectIntentResponseId() {
+
+      detectIntentResponseId_ = getDefaultInstance().getDetectIntentResponseId();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Always present. The unique identifier of the [DetectIntentResponse][google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse] that
+     * will be returned to the API caller.
+     * </pre>
+     *
+     * <code>string detect_intent_response_id = 1;</code>
+     *
+     * @param value The bytes for detectIntentResponseId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDetectIntentResponseIdBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      detectIntentResponseId_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo fulfillmentInfo_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfoOrBuilder>
+        fulfillmentInfoBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Always present. Information about the fulfillment that triggered this
+     * webhook call.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo fulfillment_info = 6;
+     * </code>
+     *
+     * @return Whether the fulfillmentInfo field is set.
+     */
+    public boolean hasFulfillmentInfo() {
+      return fulfillmentInfoBuilder_ != null || fulfillmentInfo_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Always present. Information about the fulfillment that triggered this
+     * webhook call.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo fulfillment_info = 6;
+     * </code>
+     *
+     * @return The fulfillmentInfo.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo
+        getFulfillmentInfo() {
+      if (fulfillmentInfoBuilder_ == null) {
+        return fulfillmentInfo_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo
+                .getDefaultInstance()
+            : fulfillmentInfo_;
+      } else {
+        return fulfillmentInfoBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Always present. Information about the fulfillment that triggered this
+     * webhook call.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo fulfillment_info = 6;
+     * </code>
+     */
+    public Builder setFulfillmentInfo(
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo value) {
+      if (fulfillmentInfoBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        fulfillmentInfo_ = value;
+        onChanged();
+      } else {
+        fulfillmentInfoBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Always present. Information about the fulfillment that triggered this
+     * webhook call.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo fulfillment_info = 6;
+     * </code>
+     */
+    public Builder setFulfillmentInfo(
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo.Builder
+            builderForValue) {
+      if (fulfillmentInfoBuilder_ == null) {
+        fulfillmentInfo_ = builderForValue.build();
+        onChanged();
+      } else {
+        fulfillmentInfoBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Always present. Information about the fulfillment that triggered this
+     * webhook call.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo fulfillment_info = 6;
+     * </code>
+     */
+    public Builder mergeFulfillmentInfo(
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo value) {
+      if (fulfillmentInfoBuilder_ == null) {
+        if (fulfillmentInfo_ != null) {
+          fulfillmentInfo_ =
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo.newBuilder(
+                      fulfillmentInfo_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          fulfillmentInfo_ = value;
+        }
+        onChanged();
+      } else {
+        fulfillmentInfoBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Always present. Information about the fulfillment that triggered this
+     * webhook call.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo fulfillment_info = 6;
+     * </code>
+     */
+    public Builder clearFulfillmentInfo() {
+      if (fulfillmentInfoBuilder_ == null) {
+        fulfillmentInfo_ = null;
+        onChanged();
+      } else {
+        fulfillmentInfo_ = null;
+        fulfillmentInfoBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Always present. Information about the fulfillment that triggered this
+     * webhook call.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo fulfillment_info = 6;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo.Builder
+        getFulfillmentInfoBuilder() {
+
+      onChanged();
+      return getFulfillmentInfoFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Always present. Information about the fulfillment that triggered this
+     * webhook call.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo fulfillment_info = 6;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfoOrBuilder
+        getFulfillmentInfoOrBuilder() {
+      if (fulfillmentInfoBuilder_ != null) {
+        return fulfillmentInfoBuilder_.getMessageOrBuilder();
+      } else {
+        return fulfillmentInfo_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo
+                .getDefaultInstance()
+            : fulfillmentInfo_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Always present. Information about the fulfillment that triggered this
+     * webhook call.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo fulfillment_info = 6;
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfoOrBuilder>
+        getFulfillmentInfoFieldBuilder() {
+      if (fulfillmentInfoBuilder_ == null) {
+        fulfillmentInfoBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo,
+                com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfoOrBuilder>(
+                getFulfillmentInfo(), getParentForChildren(), isClean());
+        fulfillmentInfo_ = null;
+      }
+      return fulfillmentInfoBuilder_;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo intentInfo_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfoOrBuilder>
+        intentInfoBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Information about the last matched intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo intent_info = 3;</code>
+     *
+     * @return Whether the intentInfo field is set.
+     */
+    public boolean hasIntentInfo() {
+      return intentInfoBuilder_ != null || intentInfo_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about the last matched intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo intent_info = 3;</code>
+     *
+     * @return The intentInfo.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo getIntentInfo() {
+      if (intentInfoBuilder_ == null) {
+        return intentInfo_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.getDefaultInstance()
+            : intentInfo_;
+      } else {
+        return intentInfoBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about the last matched intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo intent_info = 3;</code>
+     */
+    public Builder setIntentInfo(
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo value) {
+      if (intentInfoBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        intentInfo_ = value;
+        onChanged();
+      } else {
+        intentInfoBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about the last matched intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo intent_info = 3;</code>
+     */
+    public Builder setIntentInfo(
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.Builder builderForValue) {
+      if (intentInfoBuilder_ == null) {
+        intentInfo_ = builderForValue.build();
+        onChanged();
+      } else {
+        intentInfoBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about the last matched intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo intent_info = 3;</code>
+     */
+    public Builder mergeIntentInfo(
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo value) {
+      if (intentInfoBuilder_ == null) {
+        if (intentInfo_ != null) {
+          intentInfo_ =
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.newBuilder(
+                      intentInfo_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          intentInfo_ = value;
+        }
+        onChanged();
+      } else {
+        intentInfoBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about the last matched intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo intent_info = 3;</code>
+     */
+    public Builder clearIntentInfo() {
+      if (intentInfoBuilder_ == null) {
+        intentInfo_ = null;
+        onChanged();
+      } else {
+        intentInfo_ = null;
+        intentInfoBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about the last matched intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo intent_info = 3;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.Builder
+        getIntentInfoBuilder() {
+
+      onChanged();
+      return getIntentInfoFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about the last matched intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo intent_info = 3;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfoOrBuilder
+        getIntentInfoOrBuilder() {
+      if (intentInfoBuilder_ != null) {
+        return intentInfoBuilder_.getMessageOrBuilder();
+      } else {
+        return intentInfo_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.getDefaultInstance()
+            : intentInfo_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about the last matched intent.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo intent_info = 3;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfoOrBuilder>
+        getIntentInfoFieldBuilder() {
+      if (intentInfoBuilder_ == null) {
+        intentInfoBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo,
+                com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfoOrBuilder>(
+                getIntentInfo(), getParentForChildren(), isClean());
+        intentInfo_ = null;
+      }
+      return intentInfoBuilder_;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.PageInfo pageInfo_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.PageInfo,
+            com.google.cloud.dialogflow.cx.v3beta1.PageInfo.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.PageInfoOrBuilder>
+        pageInfoBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Information about page status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 4;</code>
+     *
+     * @return Whether the pageInfo field is set.
+     */
+    public boolean hasPageInfo() {
+      return pageInfoBuilder_ != null || pageInfo_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about page status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 4;</code>
+     *
+     * @return The pageInfo.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.PageInfo getPageInfo() {
+      if (pageInfoBuilder_ == null) {
+        return pageInfo_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.PageInfo.getDefaultInstance()
+            : pageInfo_;
+      } else {
+        return pageInfoBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about page status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 4;</code>
+     */
+    public Builder setPageInfo(com.google.cloud.dialogflow.cx.v3beta1.PageInfo value) {
+      if (pageInfoBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        pageInfo_ = value;
+        onChanged();
+      } else {
+        pageInfoBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about page status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 4;</code>
+     */
+    public Builder setPageInfo(
+        com.google.cloud.dialogflow.cx.v3beta1.PageInfo.Builder builderForValue) {
+      if (pageInfoBuilder_ == null) {
+        pageInfo_ = builderForValue.build();
+        onChanged();
+      } else {
+        pageInfoBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about page status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 4;</code>
+     */
+    public Builder mergePageInfo(com.google.cloud.dialogflow.cx.v3beta1.PageInfo value) {
+      if (pageInfoBuilder_ == null) {
+        if (pageInfo_ != null) {
+          pageInfo_ =
+              com.google.cloud.dialogflow.cx.v3beta1.PageInfo.newBuilder(pageInfo_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          pageInfo_ = value;
+        }
+        onChanged();
+      } else {
+        pageInfoBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about page status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 4;</code>
+     */
+    public Builder clearPageInfo() {
+      if (pageInfoBuilder_ == null) {
+        pageInfo_ = null;
+        onChanged();
+      } else {
+        pageInfo_ = null;
+        pageInfoBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about page status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 4;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.Builder getPageInfoBuilder() {
+
+      onChanged();
+      return getPageInfoFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about page status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 4;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.PageInfoOrBuilder getPageInfoOrBuilder() {
+      if (pageInfoBuilder_ != null) {
+        return pageInfoBuilder_.getMessageOrBuilder();
+      } else {
+        return pageInfo_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.PageInfo.getDefaultInstance()
+            : pageInfo_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about page status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 4;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.PageInfo,
+            com.google.cloud.dialogflow.cx.v3beta1.PageInfo.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.PageInfoOrBuilder>
+        getPageInfoFieldBuilder() {
+      if (pageInfoBuilder_ == null) {
+        pageInfoBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.PageInfo,
+                com.google.cloud.dialogflow.cx.v3beta1.PageInfo.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.PageInfoOrBuilder>(
+                getPageInfo(), getParentForChildren(), isClean());
+        pageInfo_ = null;
+      }
+      return pageInfoBuilder_;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.SessionInfo sessionInfo_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.SessionInfo,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionInfoOrBuilder>
+        sessionInfoBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Information about session status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 5;</code>
+     *
+     * @return Whether the sessionInfo field is set.
+     */
+    public boolean hasSessionInfo() {
+      return sessionInfoBuilder_ != null || sessionInfo_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about session status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 5;</code>
+     *
+     * @return The sessionInfo.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionInfo getSessionInfo() {
+      if (sessionInfoBuilder_ == null) {
+        return sessionInfo_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.getDefaultInstance()
+            : sessionInfo_;
+      } else {
+        return sessionInfoBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about session status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 5;</code>
+     */
+    public Builder setSessionInfo(com.google.cloud.dialogflow.cx.v3beta1.SessionInfo value) {
+      if (sessionInfoBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        sessionInfo_ = value;
+        onChanged();
+      } else {
+        sessionInfoBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about session status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 5;</code>
+     */
+    public Builder setSessionInfo(
+        com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.Builder builderForValue) {
+      if (sessionInfoBuilder_ == null) {
+        sessionInfo_ = builderForValue.build();
+        onChanged();
+      } else {
+        sessionInfoBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about session status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 5;</code>
+     */
+    public Builder mergeSessionInfo(com.google.cloud.dialogflow.cx.v3beta1.SessionInfo value) {
+      if (sessionInfoBuilder_ == null) {
+        if (sessionInfo_ != null) {
+          sessionInfo_ =
+              com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.newBuilder(sessionInfo_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          sessionInfo_ = value;
+        }
+        onChanged();
+      } else {
+        sessionInfoBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about session status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 5;</code>
+     */
+    public Builder clearSessionInfo() {
+      if (sessionInfoBuilder_ == null) {
+        sessionInfo_ = null;
+        onChanged();
+      } else {
+        sessionInfo_ = null;
+        sessionInfoBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about session status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 5;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.Builder getSessionInfoBuilder() {
+
+      onChanged();
+      return getSessionInfoFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about session status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 5;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionInfoOrBuilder getSessionInfoOrBuilder() {
+      if (sessionInfoBuilder_ != null) {
+        return sessionInfoBuilder_.getMessageOrBuilder();
+      } else {
+        return sessionInfo_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.getDefaultInstance()
+            : sessionInfo_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about session status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 5;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.SessionInfo,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionInfoOrBuilder>
+        getSessionInfoFieldBuilder() {
+      if (sessionInfoBuilder_ == null) {
+        sessionInfoBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.SessionInfo,
+                com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.SessionInfoOrBuilder>(
+                getSessionInfo(), getParentForChildren(), isClean());
+        sessionInfo_ = null;
+      }
+      return sessionInfoBuilder_;
+    }
+
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage> messages_ =
+        java.util.Collections.emptyList();
+
+    private void ensureMessagesIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        messages_ =
+            new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage>(
+                messages_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>
+        messagesBuilder_;
+
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user. Webhook can
+     * choose to append or replace this list in
+     * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage>
+        getMessagesList() {
+      if (messagesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(messages_);
+      } else {
+        return messagesBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user. Webhook can
+     * choose to append or replace this list in
+     * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+     */
+    public int getMessagesCount() {
+      if (messagesBuilder_ == null) {
+        return messages_.size();
+      } else {
+        return messagesBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user. Webhook can
+     * choose to append or replace this list in
+     * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage getMessages(int index) {
+      if (messagesBuilder_ == null) {
+        return messages_.get(index);
+      } else {
+        return messagesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user. Webhook can
+     * choose to append or replace this list in
+     * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+     */
+    public Builder setMessages(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage value) {
+      if (messagesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureMessagesIsMutable();
+        messages_.set(index, value);
+        onChanged();
+      } else {
+        messagesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user. Webhook can
+     * choose to append or replace this list in
+     * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+     */
+    public Builder setMessages(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder builderForValue) {
+      if (messagesBuilder_ == null) {
+        ensureMessagesIsMutable();
+        messages_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        messagesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user. Webhook can
+     * choose to append or replace this list in
+     * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+     */
+    public Builder addMessages(com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage value) {
+      if (messagesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureMessagesIsMutable();
+        messages_.add(value);
+        onChanged();
+      } else {
+        messagesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user. Webhook can
+     * choose to append or replace this list in
+     * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+     */
+    public Builder addMessages(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage value) {
+      if (messagesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureMessagesIsMutable();
+        messages_.add(index, value);
+        onChanged();
+      } else {
+        messagesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user. Webhook can
+     * choose to append or replace this list in
+     * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+     */
+    public Builder addMessages(
+        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder builderForValue) {
+      if (messagesBuilder_ == null) {
+        ensureMessagesIsMutable();
+        messages_.add(builderForValue.build());
+        onChanged();
+      } else {
+        messagesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user. Webhook can
+     * choose to append or replace this list in
+     * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+     */
+    public Builder addMessages(
+        int index, com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder builderForValue) {
+      if (messagesBuilder_ == null) {
+        ensureMessagesIsMutable();
+        messages_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        messagesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user. Webhook can
+     * choose to append or replace this list in
+     * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+     */
+    public Builder addAllMessages(
+        java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage>
+            values) {
+      if (messagesBuilder_ == null) {
+        ensureMessagesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, messages_);
+        onChanged();
+      } else {
+        messagesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user. Webhook can
+     * choose to append or replace this list in
+     * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+     */
+    public Builder clearMessages() {
+      if (messagesBuilder_ == null) {
+        messages_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        messagesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user. Webhook can
+     * choose to append or replace this list in
+     * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+     */
+    public Builder removeMessages(int index) {
+      if (messagesBuilder_ == null) {
+        ensureMessagesIsMutable();
+        messages_.remove(index);
+        onChanged();
+      } else {
+        messagesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user. Webhook can
+     * choose to append or replace this list in
+     * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder getMessagesBuilder(
+        int index) {
+      return getMessagesFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user. Webhook can
+     * choose to append or replace this list in
+     * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder getMessagesOrBuilder(
+        int index) {
+      if (messagesBuilder_ == null) {
+        return messages_.get(index);
+      } else {
+        return messagesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user. Webhook can
+     * choose to append or replace this list in
+     * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+     */
+    public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>
+        getMessagesOrBuilderList() {
+      if (messagesBuilder_ != null) {
+        return messagesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(messages_);
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user. Webhook can
+     * choose to append or replace this list in
+     * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder addMessagesBuilder() {
+      return getMessagesFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user. Webhook can
+     * choose to append or replace this list in
+     * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder addMessagesBuilder(
+        int index) {
+      return getMessagesFieldBuilder()
+          .addBuilder(
+              index, com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user. Webhook can
+     * choose to append or replace this list in
+     * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+     */
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder>
+        getMessagesBuilderList() {
+      return getMessagesFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>
+        getMessagesFieldBuilder() {
+      if (messagesBuilder_ == null) {
+        messagesBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>(
+                messages_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+        messages_ = null;
+      }
+      return messagesBuilder_;
+    }
+
+    private com.google.protobuf.Struct payload_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Struct,
+            com.google.protobuf.Struct.Builder,
+            com.google.protobuf.StructOrBuilder>
+        payloadBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Custom data set in [QueryParameters.payload][google.cloud.dialogflow.cx.v3beta1.QueryParameters.payload].
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 8;</code>
+     *
+     * @return Whether the payload field is set.
+     */
+    public boolean hasPayload() {
+      return payloadBuilder_ != null || payload_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Custom data set in [QueryParameters.payload][google.cloud.dialogflow.cx.v3beta1.QueryParameters.payload].
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 8;</code>
+     *
+     * @return The payload.
+     */
+    public com.google.protobuf.Struct getPayload() {
+      if (payloadBuilder_ == null) {
+        return payload_ == null ? com.google.protobuf.Struct.getDefaultInstance() : payload_;
+      } else {
+        return payloadBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Custom data set in [QueryParameters.payload][google.cloud.dialogflow.cx.v3beta1.QueryParameters.payload].
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 8;</code>
+     */
+    public Builder setPayload(com.google.protobuf.Struct value) {
+      if (payloadBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        payload_ = value;
+        onChanged();
+      } else {
+        payloadBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Custom data set in [QueryParameters.payload][google.cloud.dialogflow.cx.v3beta1.QueryParameters.payload].
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 8;</code>
+     */
+    public Builder setPayload(com.google.protobuf.Struct.Builder builderForValue) {
+      if (payloadBuilder_ == null) {
+        payload_ = builderForValue.build();
+        onChanged();
+      } else {
+        payloadBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Custom data set in [QueryParameters.payload][google.cloud.dialogflow.cx.v3beta1.QueryParameters.payload].
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 8;</code>
+     */
+    public Builder mergePayload(com.google.protobuf.Struct value) {
+      if (payloadBuilder_ == null) {
+        if (payload_ != null) {
+          payload_ =
+              com.google.protobuf.Struct.newBuilder(payload_).mergeFrom(value).buildPartial();
+        } else {
+          payload_ = value;
+        }
+        onChanged();
+      } else {
+        payloadBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Custom data set in [QueryParameters.payload][google.cloud.dialogflow.cx.v3beta1.QueryParameters.payload].
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 8;</code>
+     */
+    public Builder clearPayload() {
+      if (payloadBuilder_ == null) {
+        payload_ = null;
+        onChanged();
+      } else {
+        payload_ = null;
+        payloadBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Custom data set in [QueryParameters.payload][google.cloud.dialogflow.cx.v3beta1.QueryParameters.payload].
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 8;</code>
+     */
+    public com.google.protobuf.Struct.Builder getPayloadBuilder() {
+
+      onChanged();
+      return getPayloadFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Custom data set in [QueryParameters.payload][google.cloud.dialogflow.cx.v3beta1.QueryParameters.payload].
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 8;</code>
+     */
+    public com.google.protobuf.StructOrBuilder getPayloadOrBuilder() {
+      if (payloadBuilder_ != null) {
+        return payloadBuilder_.getMessageOrBuilder();
+      } else {
+        return payload_ == null ? com.google.protobuf.Struct.getDefaultInstance() : payload_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Custom data set in [QueryParameters.payload][google.cloud.dialogflow.cx.v3beta1.QueryParameters.payload].
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 8;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Struct,
+            com.google.protobuf.Struct.Builder,
+            com.google.protobuf.StructOrBuilder>
+        getPayloadFieldBuilder() {
+      if (payloadBuilder_ == null) {
+        payloadBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.Struct,
+                com.google.protobuf.Struct.Builder,
+                com.google.protobuf.StructOrBuilder>(
+                getPayload(), getParentForChildren(), isClean());
+        payload_ = null;
+      }
+      return payloadBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.WebhookRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.WebhookRequest)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<WebhookRequest> PARSER =
+      new com.google.protobuf.AbstractParser<WebhookRequest>() {
+        @java.lang.Override
+        public WebhookRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new WebhookRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<WebhookRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<WebhookRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookRequestOrBuilder.java
new file mode 100644
index 000000000..88aac4b74
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookRequestOrBuilder.java
@@ -0,0 +1,297 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface WebhookRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.WebhookRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * Always present. The unique identifier of the [DetectIntentResponse][google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse] that
+   * will be returned to the API caller.
+   * </pre>
+   *
+   * <code>string detect_intent_response_id = 1;</code>
+   *
+   * @return The detectIntentResponseId.
+   */
+  java.lang.String getDetectIntentResponseId();
+  /**
+   *
+   *
+   * <pre>
+   * Always present. The unique identifier of the [DetectIntentResponse][google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse] that
+   * will be returned to the API caller.
+   * </pre>
+   *
+   * <code>string detect_intent_response_id = 1;</code>
+   *
+   * @return The bytes for detectIntentResponseId.
+   */
+  com.google.protobuf.ByteString getDetectIntentResponseIdBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * Always present. Information about the fulfillment that triggered this
+   * webhook call.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo fulfillment_info = 6;
+   * </code>
+   *
+   * @return Whether the fulfillmentInfo field is set.
+   */
+  boolean hasFulfillmentInfo();
+  /**
+   *
+   *
+   * <pre>
+   * Always present. Information about the fulfillment that triggered this
+   * webhook call.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo fulfillment_info = 6;
+   * </code>
+   *
+   * @return The fulfillmentInfo.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo getFulfillmentInfo();
+  /**
+   *
+   *
+   * <pre>
+   * Always present. Information about the fulfillment that triggered this
+   * webhook call.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo fulfillment_info = 6;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfoOrBuilder
+      getFulfillmentInfoOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Information about the last matched intent.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo intent_info = 3;</code>
+   *
+   * @return Whether the intentInfo field is set.
+   */
+  boolean hasIntentInfo();
+  /**
+   *
+   *
+   * <pre>
+   * Information about the last matched intent.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo intent_info = 3;</code>
+   *
+   * @return The intentInfo.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo getIntentInfo();
+  /**
+   *
+   *
+   * <pre>
+   * Information about the last matched intent.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfo intent_info = 3;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.IntentInfoOrBuilder
+      getIntentInfoOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Information about page status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 4;</code>
+   *
+   * @return Whether the pageInfo field is set.
+   */
+  boolean hasPageInfo();
+  /**
+   *
+   *
+   * <pre>
+   * Information about page status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 4;</code>
+   *
+   * @return The pageInfo.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.PageInfo getPageInfo();
+  /**
+   *
+   *
+   * <pre>
+   * Information about page status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 4;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.PageInfoOrBuilder getPageInfoOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Information about session status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 5;</code>
+   *
+   * @return Whether the sessionInfo field is set.
+   */
+  boolean hasSessionInfo();
+  /**
+   *
+   *
+   * <pre>
+   * Information about session status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 5;</code>
+   *
+   * @return The sessionInfo.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.SessionInfo getSessionInfo();
+  /**
+   *
+   *
+   * <pre>
+   * Information about session status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 5;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.SessionInfoOrBuilder getSessionInfoOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich message responses to present to the user. Webhook can
+   * choose to append or replace this list in
+   * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+   */
+  java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage> getMessagesList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich message responses to present to the user. Webhook can
+   * choose to append or replace this list in
+   * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage getMessages(int index);
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich message responses to present to the user. Webhook can
+   * choose to append or replace this list in
+   * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+   */
+  int getMessagesCount();
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich message responses to present to the user. Webhook can
+   * choose to append or replace this list in
+   * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+   */
+  java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>
+      getMessagesOrBuilderList();
+  /**
+   *
+   *
+   * <pre>
+   * The list of rich message responses to present to the user. Webhook can
+   * choose to append or replace this list in
+   * [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+   * </pre>
+   *
+   * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 7;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder getMessagesOrBuilder(int index);
+
+  /**
+   *
+   *
+   * <pre>
+   * Custom data set in [QueryParameters.payload][google.cloud.dialogflow.cx.v3beta1.QueryParameters.payload].
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 8;</code>
+   *
+   * @return Whether the payload field is set.
+   */
+  boolean hasPayload();
+  /**
+   *
+   *
+   * <pre>
+   * Custom data set in [QueryParameters.payload][google.cloud.dialogflow.cx.v3beta1.QueryParameters.payload].
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 8;</code>
+   *
+   * @return The payload.
+   */
+  com.google.protobuf.Struct getPayload();
+  /**
+   *
+   *
+   * <pre>
+   * Custom data set in [QueryParameters.payload][google.cloud.dialogflow.cx.v3beta1.QueryParameters.payload].
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 8;</code>
+   */
+  com.google.protobuf.StructOrBuilder getPayloadOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookResponse.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookResponse.java
new file mode 100644
index 000000000..f0fd8ac36
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookResponse.java
@@ -0,0 +1,3573 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+/**
+ *
+ *
+ * <pre>
+ * The response message for a webhook call.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.WebhookResponse}
+ */
+public final class WebhookResponse extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.WebhookResponse)
+    WebhookResponseOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use WebhookResponse.newBuilder() to construct.
+  private WebhookResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+
+  private WebhookResponse() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new WebhookResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private WebhookResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.Builder
+                  subBuilder = null;
+              if (fulfillmentResponse_ != null) {
+                subBuilder = fulfillmentResponse_.toBuilder();
+              }
+              fulfillmentResponse_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+                          .parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(fulfillmentResponse_);
+                fulfillmentResponse_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 18:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.PageInfo.Builder subBuilder = null;
+              if (pageInfo_ != null) {
+                subBuilder = pageInfo_.toBuilder();
+              }
+              pageInfo_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.PageInfo.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(pageInfo_);
+                pageInfo_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 26:
+            {
+              com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.Builder subBuilder = null;
+              if (sessionInfo_ != null) {
+                subBuilder = sessionInfo_.toBuilder();
+              }
+              sessionInfo_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(sessionInfo_);
+                sessionInfo_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 34:
+            {
+              com.google.protobuf.Struct.Builder subBuilder = null;
+              if (payload_ != null) {
+                subBuilder = payload_.toBuilder();
+              }
+              payload_ = input.readMessage(com.google.protobuf.Struct.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(payload_);
+                payload_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 42:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+              transitionCase_ = 5;
+              transition_ = s;
+              break;
+            }
+          case 50:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+              transitionCase_ = 6;
+              transition_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+        .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.class,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.Builder.class);
+  }
+
+  public interface FulfillmentResponseOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage> getMessagesList();
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage getMessages(int index);
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    int getMessagesCount();
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>
+        getMessagesOrBuilderList();
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder getMessagesOrBuilder(int index);
+
+    /**
+     *
+     *
+     * <pre>
+     * Merge behavior for `messages`.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.MergeBehavior merge_behavior = 2;
+     * </code>
+     *
+     * @return The enum numeric value on the wire for mergeBehavior.
+     */
+    int getMergeBehaviorValue();
+    /**
+     *
+     *
+     * <pre>
+     * Merge behavior for `messages`.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.MergeBehavior merge_behavior = 2;
+     * </code>
+     *
+     * @return The mergeBehavior.
+     */
+    com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.MergeBehavior
+        getMergeBehavior();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Represents a fulfillment response to the user.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse}
+   */
+  public static final class FulfillmentResponse extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse)
+      FulfillmentResponseOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use FulfillmentResponse.newBuilder() to construct.
+    private FulfillmentResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+
+    private FulfillmentResponse() {
+      messages_ = java.util.Collections.emptyList();
+      mergeBehavior_ = 0;
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new FulfillmentResponse();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private FulfillmentResponse(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      int mutable_bitField0_ = 0;
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                  messages_ =
+                      new java.util.ArrayList<
+                          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage>();
+                  mutable_bitField0_ |= 0x00000001;
+                }
+                messages_.add(
+                    input.readMessage(
+                        com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.parser(),
+                        extensionRegistry));
+                break;
+              }
+            case 16:
+              {
+                int rawValue = input.readEnum();
+
+                mergeBehavior_ = rawValue;
+                break;
+              }
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        if (((mutable_bitField0_ & 0x00000001) != 0)) {
+          messages_ = java.util.Collections.unmodifiableList(messages_);
+        }
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookResponse_FulfillmentResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookResponse_FulfillmentResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.class,
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.Builder
+                  .class);
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * Defines merge behavior for `messages`.
+     * </pre>
+     *
+     * Protobuf enum {@code
+     * google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.MergeBehavior}
+     */
+    public enum MergeBehavior implements com.google.protobuf.ProtocolMessageEnum {
+      /**
+       *
+       *
+       * <pre>
+       * Not specified. `APPEND` will be used.
+       * </pre>
+       *
+       * <code>MERGE_BEHAVIOR_UNSPECIFIED = 0;</code>
+       */
+      MERGE_BEHAVIOR_UNSPECIFIED(0),
+      /**
+       *
+       *
+       * <pre>
+       * `messages` will be appended to the list of messages waiting to be sent
+       * to the user.
+       * </pre>
+       *
+       * <code>APPEND = 1;</code>
+       */
+      APPEND(1),
+      /**
+       *
+       *
+       * <pre>
+       * `messages` will replace the list of messages waiting to be sent to the
+       * user.
+       * </pre>
+       *
+       * <code>REPLACE = 2;</code>
+       */
+      REPLACE(2),
+      UNRECOGNIZED(-1),
+      ;
+
+      /**
+       *
+       *
+       * <pre>
+       * Not specified. `APPEND` will be used.
+       * </pre>
+       *
+       * <code>MERGE_BEHAVIOR_UNSPECIFIED = 0;</code>
+       */
+      public static final int MERGE_BEHAVIOR_UNSPECIFIED_VALUE = 0;
+      /**
+       *
+       *
+       * <pre>
+       * `messages` will be appended to the list of messages waiting to be sent
+       * to the user.
+       * </pre>
+       *
+       * <code>APPEND = 1;</code>
+       */
+      public static final int APPEND_VALUE = 1;
+      /**
+       *
+       *
+       * <pre>
+       * `messages` will replace the list of messages waiting to be sent to the
+       * user.
+       * </pre>
+       *
+       * <code>REPLACE = 2;</code>
+       */
+      public static final int REPLACE_VALUE = 2;
+
+      public final int getNumber() {
+        if (this == UNRECOGNIZED) {
+          throw new java.lang.IllegalArgumentException(
+              "Can't get the number of an unknown enum value.");
+        }
+        return value;
+      }
+
+      /**
+       * @param value The numeric wire value of the corresponding enum entry.
+       * @return The enum associated with the given numeric wire value.
+       * @deprecated Use {@link #forNumber(int)} instead.
+       */
+      @java.lang.Deprecated
+      public static MergeBehavior valueOf(int value) {
+        return forNumber(value);
+      }
+
+      /**
+       * @param value The numeric wire value of the corresponding enum entry.
+       * @return The enum associated with the given numeric wire value.
+       */
+      public static MergeBehavior forNumber(int value) {
+        switch (value) {
+          case 0:
+            return MERGE_BEHAVIOR_UNSPECIFIED;
+          case 1:
+            return APPEND;
+          case 2:
+            return REPLACE;
+          default:
+            return null;
+        }
+      }
+
+      public static com.google.protobuf.Internal.EnumLiteMap<MergeBehavior> internalGetValueMap() {
+        return internalValueMap;
+      }
+
+      private static final com.google.protobuf.Internal.EnumLiteMap<MergeBehavior>
+          internalValueMap =
+              new com.google.protobuf.Internal.EnumLiteMap<MergeBehavior>() {
+                public MergeBehavior findValueByNumber(int number) {
+                  return MergeBehavior.forNumber(number);
+                }
+              };
+
+      public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+        if (this == UNRECOGNIZED) {
+          throw new java.lang.IllegalStateException(
+              "Can't get the descriptor of an unrecognized enum value.");
+        }
+        return getDescriptor().getValues().get(ordinal());
+      }
+
+      public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+        return getDescriptor();
+      }
+
+      public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+            .getDescriptor()
+            .getEnumTypes()
+            .get(0);
+      }
+
+      private static final MergeBehavior[] VALUES = values();
+
+      public static MergeBehavior valueOf(
+          com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+        if (desc.getType() != getDescriptor()) {
+          throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
+        }
+        if (desc.getIndex() == -1) {
+          return UNRECOGNIZED;
+        }
+        return VALUES[desc.getIndex()];
+      }
+
+      private final int value;
+
+      private MergeBehavior(int value) {
+        this.value = value;
+      }
+
+      // @@protoc_insertion_point(enum_scope:google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.MergeBehavior)
+    }
+
+    public static final int MESSAGES_FIELD_NUMBER = 1;
+    private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage> messages_;
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    @java.lang.Override
+    public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage>
+        getMessagesList() {
+      return messages_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    @java.lang.Override
+    public java.util.List<? extends com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>
+        getMessagesOrBuilderList() {
+      return messages_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    @java.lang.Override
+    public int getMessagesCount() {
+      return messages_.size();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage getMessages(int index) {
+      return messages_.get(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The list of rich message responses to present to the user.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder getMessagesOrBuilder(
+        int index) {
+      return messages_.get(index);
+    }
+
+    public static final int MERGE_BEHAVIOR_FIELD_NUMBER = 2;
+    private int mergeBehavior_;
+    /**
+     *
+     *
+     * <pre>
+     * Merge behavior for `messages`.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.MergeBehavior merge_behavior = 2;
+     * </code>
+     *
+     * @return The enum numeric value on the wire for mergeBehavior.
+     */
+    @java.lang.Override
+    public int getMergeBehaviorValue() {
+      return mergeBehavior_;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Merge behavior for `messages`.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.MergeBehavior merge_behavior = 2;
+     * </code>
+     *
+     * @return The mergeBehavior.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.MergeBehavior
+        getMergeBehavior() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.MergeBehavior
+          result =
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+                  .MergeBehavior.valueOf(mergeBehavior_);
+      return result == null
+          ? com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.MergeBehavior
+              .UNRECOGNIZED
+          : result;
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      for (int i = 0; i < messages_.size(); i++) {
+        output.writeMessage(1, messages_.get(i));
+      }
+      if (mergeBehavior_
+          != com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+              .MergeBehavior.MERGE_BEHAVIOR_UNSPECIFIED
+              .getNumber()) {
+        output.writeEnum(2, mergeBehavior_);
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      for (int i = 0; i < messages_.size(); i++) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, messages_.get(i));
+      }
+      if (mergeBehavior_
+          != com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+              .MergeBehavior.MERGE_BEHAVIOR_UNSPECIFIED
+              .getNumber()) {
+        size += com.google.protobuf.CodedOutputStream.computeEnumSize(2, mergeBehavior_);
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj
+          instanceof com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse other =
+          (com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse) obj;
+
+      if (!getMessagesList().equals(other.getMessagesList())) return false;
+      if (mergeBehavior_ != other.mergeBehavior_) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      if (getMessagesCount() > 0) {
+        hash = (37 * hash) + MESSAGES_FIELD_NUMBER;
+        hash = (53 * hash) + getMessagesList().hashCode();
+      }
+      hash = (37 * hash) + MERGE_BEHAVIOR_FIELD_NUMBER;
+      hash = (53 * hash) + mergeBehavior_;
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+        parseFrom(java.nio.ByteBuffer data)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+        parseFrom(
+            java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+        parseFrom(com.google.protobuf.ByteString data)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+        parseFrom(
+            com.google.protobuf.ByteString data,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+        parseFrom(byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+        parseFrom(byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+        parseFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+        parseFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+        parseFrom(com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+        parseFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Represents a fulfillment response to the user.
+     * </pre>
+     *
+     * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse)
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponseOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookResponse_FulfillmentResponse_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookResponse_FulfillmentResponse_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.class,
+                com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.Builder
+                    .class);
+      }
+
+      // Construct using
+      // com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+          getMessagesFieldBuilder();
+        }
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        if (messagesBuilder_ == null) {
+          messages_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000001);
+        } else {
+          messagesBuilder_.clear();
+        }
+        mergeBehavior_ = 0;
+
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+            .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookResponse_FulfillmentResponse_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+          getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+            .getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse build() {
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse result =
+            buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+          buildPartial() {
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse result =
+            new com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse(this);
+        int from_bitField0_ = bitField0_;
+        if (messagesBuilder_ == null) {
+          if (((bitField0_ & 0x00000001) != 0)) {
+            messages_ = java.util.Collections.unmodifiableList(messages_);
+            bitField0_ = (bitField0_ & ~0x00000001);
+          }
+          result.messages_ = messages_;
+        } else {
+          result.messages_ = messagesBuilder_.build();
+        }
+        result.mergeBehavior_ = mergeBehavior_;
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other
+            instanceof com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse) {
+          return mergeFrom(
+              (com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse other) {
+        if (other
+            == com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+                .getDefaultInstance()) return this;
+        if (messagesBuilder_ == null) {
+          if (!other.messages_.isEmpty()) {
+            if (messages_.isEmpty()) {
+              messages_ = other.messages_;
+              bitField0_ = (bitField0_ & ~0x00000001);
+            } else {
+              ensureMessagesIsMutable();
+              messages_.addAll(other.messages_);
+            }
+            onChanged();
+          }
+        } else {
+          if (!other.messages_.isEmpty()) {
+            if (messagesBuilder_.isEmpty()) {
+              messagesBuilder_.dispose();
+              messagesBuilder_ = null;
+              messages_ = other.messages_;
+              bitField0_ = (bitField0_ & ~0x00000001);
+              messagesBuilder_ =
+                  com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                      ? getMessagesFieldBuilder()
+                      : null;
+            } else {
+              messagesBuilder_.addAllMessages(other.messages_);
+            }
+          }
+        }
+        if (other.mergeBehavior_ != 0) {
+          setMergeBehaviorValue(other.getMergeBehaviorValue());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse parsedMessage =
+            null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse)
+                  e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private int bitField0_;
+
+      private java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage> messages_ =
+          java.util.Collections.emptyList();
+
+      private void ensureMessagesIsMutable() {
+        if (!((bitField0_ & 0x00000001) != 0)) {
+          messages_ =
+              new java.util.ArrayList<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage>(
+                  messages_);
+          bitField0_ |= 0x00000001;
+        }
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage,
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder,
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>
+          messagesBuilder_;
+
+      /**
+       *
+       *
+       * <pre>
+       * The list of rich message responses to present to the user.
+       * </pre>
+       *
+       * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+       */
+      public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage>
+          getMessagesList() {
+        if (messagesBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(messages_);
+        } else {
+          return messagesBuilder_.getMessageList();
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The list of rich message responses to present to the user.
+       * </pre>
+       *
+       * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+       */
+      public int getMessagesCount() {
+        if (messagesBuilder_ == null) {
+          return messages_.size();
+        } else {
+          return messagesBuilder_.getCount();
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The list of rich message responses to present to the user.
+       * </pre>
+       *
+       * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage getMessages(int index) {
+        if (messagesBuilder_ == null) {
+          return messages_.get(index);
+        } else {
+          return messagesBuilder_.getMessage(index);
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The list of rich message responses to present to the user.
+       * </pre>
+       *
+       * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+       */
+      public Builder setMessages(
+          int index, com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage value) {
+        if (messagesBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureMessagesIsMutable();
+          messages_.set(index, value);
+          onChanged();
+        } else {
+          messagesBuilder_.setMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The list of rich message responses to present to the user.
+       * </pre>
+       *
+       * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+       */
+      public Builder setMessages(
+          int index,
+          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder builderForValue) {
+        if (messagesBuilder_ == null) {
+          ensureMessagesIsMutable();
+          messages_.set(index, builderForValue.build());
+          onChanged();
+        } else {
+          messagesBuilder_.setMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The list of rich message responses to present to the user.
+       * </pre>
+       *
+       * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+       */
+      public Builder addMessages(com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage value) {
+        if (messagesBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureMessagesIsMutable();
+          messages_.add(value);
+          onChanged();
+        } else {
+          messagesBuilder_.addMessage(value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The list of rich message responses to present to the user.
+       * </pre>
+       *
+       * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+       */
+      public Builder addMessages(
+          int index, com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage value) {
+        if (messagesBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureMessagesIsMutable();
+          messages_.add(index, value);
+          onChanged();
+        } else {
+          messagesBuilder_.addMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The list of rich message responses to present to the user.
+       * </pre>
+       *
+       * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+       */
+      public Builder addMessages(
+          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder builderForValue) {
+        if (messagesBuilder_ == null) {
+          ensureMessagesIsMutable();
+          messages_.add(builderForValue.build());
+          onChanged();
+        } else {
+          messagesBuilder_.addMessage(builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The list of rich message responses to present to the user.
+       * </pre>
+       *
+       * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+       */
+      public Builder addMessages(
+          int index,
+          com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder builderForValue) {
+        if (messagesBuilder_ == null) {
+          ensureMessagesIsMutable();
+          messages_.add(index, builderForValue.build());
+          onChanged();
+        } else {
+          messagesBuilder_.addMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The list of rich message responses to present to the user.
+       * </pre>
+       *
+       * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+       */
+      public Builder addAllMessages(
+          java.lang.Iterable<? extends com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage>
+              values) {
+        if (messagesBuilder_ == null) {
+          ensureMessagesIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, messages_);
+          onChanged();
+        } else {
+          messagesBuilder_.addAllMessages(values);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The list of rich message responses to present to the user.
+       * </pre>
+       *
+       * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+       */
+      public Builder clearMessages() {
+        if (messagesBuilder_ == null) {
+          messages_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000001);
+          onChanged();
+        } else {
+          messagesBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The list of rich message responses to present to the user.
+       * </pre>
+       *
+       * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+       */
+      public Builder removeMessages(int index) {
+        if (messagesBuilder_ == null) {
+          ensureMessagesIsMutable();
+          messages_.remove(index);
+          onChanged();
+        } else {
+          messagesBuilder_.remove(index);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The list of rich message responses to present to the user.
+       * </pre>
+       *
+       * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder getMessagesBuilder(
+          int index) {
+        return getMessagesFieldBuilder().getBuilder(index);
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The list of rich message responses to present to the user.
+       * </pre>
+       *
+       * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder getMessagesOrBuilder(
+          int index) {
+        if (messagesBuilder_ == null) {
+          return messages_.get(index);
+        } else {
+          return messagesBuilder_.getMessageOrBuilder(index);
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The list of rich message responses to present to the user.
+       * </pre>
+       *
+       * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+       */
+      public java.util.List<
+              ? extends com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>
+          getMessagesOrBuilderList() {
+        if (messagesBuilder_ != null) {
+          return messagesBuilder_.getMessageOrBuilderList();
+        } else {
+          return java.util.Collections.unmodifiableList(messages_);
+        }
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The list of rich message responses to present to the user.
+       * </pre>
+       *
+       * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder addMessagesBuilder() {
+        return getMessagesFieldBuilder()
+            .addBuilder(
+                com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The list of rich message responses to present to the user.
+       * </pre>
+       *
+       * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+       */
+      public com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder addMessagesBuilder(
+          int index) {
+        return getMessagesFieldBuilder()
+            .addBuilder(
+                index, com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * <pre>
+       * The list of rich message responses to present to the user.
+       * </pre>
+       *
+       * <code>repeated .google.cloud.dialogflow.cx.v3beta1.ResponseMessage messages = 1;</code>
+       */
+      public java.util.List<com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder>
+          getMessagesBuilderList() {
+        return getMessagesFieldBuilder().getBuilderList();
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage,
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder,
+              com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>
+          getMessagesFieldBuilder() {
+        if (messagesBuilder_ == null) {
+          messagesBuilder_ =
+              new com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage,
+                  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessage.Builder,
+                  com.google.cloud.dialogflow.cx.v3beta1.ResponseMessageOrBuilder>(
+                  messages_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+          messages_ = null;
+        }
+        return messagesBuilder_;
+      }
+
+      private int mergeBehavior_ = 0;
+      /**
+       *
+       *
+       * <pre>
+       * Merge behavior for `messages`.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.MergeBehavior merge_behavior = 2;
+       * </code>
+       *
+       * @return The enum numeric value on the wire for mergeBehavior.
+       */
+      @java.lang.Override
+      public int getMergeBehaviorValue() {
+        return mergeBehavior_;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Merge behavior for `messages`.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.MergeBehavior merge_behavior = 2;
+       * </code>
+       *
+       * @param value The enum numeric value on the wire for mergeBehavior to set.
+       * @return This builder for chaining.
+       */
+      public Builder setMergeBehaviorValue(int value) {
+
+        mergeBehavior_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Merge behavior for `messages`.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.MergeBehavior merge_behavior = 2;
+       * </code>
+       *
+       * @return The mergeBehavior.
+       */
+      @java.lang.Override
+      public com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+              .MergeBehavior
+          getMergeBehavior() {
+        @SuppressWarnings("deprecation")
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.MergeBehavior
+            result =
+                com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+                    .MergeBehavior.valueOf(mergeBehavior_);
+        return result == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+                .MergeBehavior.UNRECOGNIZED
+            : result;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Merge behavior for `messages`.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.MergeBehavior merge_behavior = 2;
+       * </code>
+       *
+       * @param value The mergeBehavior to set.
+       * @return This builder for chaining.
+       */
+      public Builder setMergeBehavior(
+          com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.MergeBehavior
+              value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+
+        mergeBehavior_ = value.getNumber();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * <pre>
+       * Merge behavior for `messages`.
+       * </pre>
+       *
+       * <code>
+       * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.MergeBehavior merge_behavior = 2;
+       * </code>
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearMergeBehavior() {
+
+        mergeBehavior_ = 0;
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse)
+    private static final com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE =
+          new com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse();
+    }
+
+    public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<FulfillmentResponse> PARSER =
+        new com.google.protobuf.AbstractParser<FulfillmentResponse>() {
+          @java.lang.Override
+          public FulfillmentResponse parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new FulfillmentResponse(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser<FulfillmentResponse> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<FulfillmentResponse> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  private int transitionCase_ = 0;
+  private java.lang.Object transition_;
+
+  public enum TransitionCase
+      implements
+          com.google.protobuf.Internal.EnumLite,
+          com.google.protobuf.AbstractMessage.InternalOneOfEnum {
+    TARGET_PAGE(5),
+    TARGET_FLOW(6),
+    TRANSITION_NOT_SET(0);
+    private final int value;
+
+    private TransitionCase(int value) {
+      this.value = value;
+    }
+    /**
+     * @param value The number of the enum to look for.
+     * @return The enum associated with the given number.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static TransitionCase valueOf(int value) {
+      return forNumber(value);
+    }
+
+    public static TransitionCase forNumber(int value) {
+      switch (value) {
+        case 5:
+          return TARGET_PAGE;
+        case 6:
+          return TARGET_FLOW;
+        case 0:
+          return TRANSITION_NOT_SET;
+        default:
+          return null;
+      }
+    }
+
+    public int getNumber() {
+      return this.value;
+    }
+  };
+
+  public TransitionCase getTransitionCase() {
+    return TransitionCase.forNumber(transitionCase_);
+  }
+
+  public static final int FULFILLMENT_RESPONSE_FIELD_NUMBER = 1;
+  private com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+      fulfillmentResponse_;
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment response to send to the user. This field can be omitted by
+   * the webhook if it does not intend to send any response to the user.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse fulfillment_response = 1;
+   * </code>
+   *
+   * @return Whether the fulfillmentResponse field is set.
+   */
+  @java.lang.Override
+  public boolean hasFulfillmentResponse() {
+    return fulfillmentResponse_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment response to send to the user. This field can be omitted by
+   * the webhook if it does not intend to send any response to the user.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse fulfillment_response = 1;
+   * </code>
+   *
+   * @return The fulfillmentResponse.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+      getFulfillmentResponse() {
+    return fulfillmentResponse_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+            .getDefaultInstance()
+        : fulfillmentResponse_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment response to send to the user. This field can be omitted by
+   * the webhook if it does not intend to send any response to the user.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse fulfillment_response = 1;
+   * </code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponseOrBuilder
+      getFulfillmentResponseOrBuilder() {
+    return getFulfillmentResponse();
+  }
+
+  public static final int PAGE_INFO_FIELD_NUMBER = 2;
+  private com.google.cloud.dialogflow.cx.v3beta1.PageInfo pageInfo_;
+  /**
+   *
+   *
+   * <pre>
+   * Information about page status. This field can be omitted by the webhook if
+   * it does not intend to modify page status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 2;</code>
+   *
+   * @return Whether the pageInfo field is set.
+   */
+  @java.lang.Override
+  public boolean hasPageInfo() {
+    return pageInfo_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Information about page status. This field can be omitted by the webhook if
+   * it does not intend to modify page status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 2;</code>
+   *
+   * @return The pageInfo.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.PageInfo getPageInfo() {
+    return pageInfo_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.PageInfo.getDefaultInstance()
+        : pageInfo_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Information about page status. This field can be omitted by the webhook if
+   * it does not intend to modify page status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.PageInfoOrBuilder getPageInfoOrBuilder() {
+    return getPageInfo();
+  }
+
+  public static final int SESSION_INFO_FIELD_NUMBER = 3;
+  private com.google.cloud.dialogflow.cx.v3beta1.SessionInfo sessionInfo_;
+  /**
+   *
+   *
+   * <pre>
+   * Information about session status. This field can be omitted by the webhook
+   * if it does not intend to modify session status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 3;</code>
+   *
+   * @return Whether the sessionInfo field is set.
+   */
+  @java.lang.Override
+  public boolean hasSessionInfo() {
+    return sessionInfo_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Information about session status. This field can be omitted by the webhook
+   * if it does not intend to modify session status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 3;</code>
+   *
+   * @return The sessionInfo.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SessionInfo getSessionInfo() {
+    return sessionInfo_ == null
+        ? com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.getDefaultInstance()
+        : sessionInfo_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Information about session status. This field can be omitted by the webhook
+   * if it does not intend to modify session status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 3;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.SessionInfoOrBuilder getSessionInfoOrBuilder() {
+    return getSessionInfo();
+  }
+
+  public static final int PAYLOAD_FIELD_NUMBER = 4;
+  private com.google.protobuf.Struct payload_;
+  /**
+   *
+   *
+   * <pre>
+   * Value to append directly to [QueryResult.webhook_payloads][google.cloud.dialogflow.cx.v3beta1.QueryResult.webhook_payloads].
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 4;</code>
+   *
+   * @return Whether the payload field is set.
+   */
+  @java.lang.Override
+  public boolean hasPayload() {
+    return payload_ != null;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Value to append directly to [QueryResult.webhook_payloads][google.cloud.dialogflow.cx.v3beta1.QueryResult.webhook_payloads].
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 4;</code>
+   *
+   * @return The payload.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Struct getPayload() {
+    return payload_ == null ? com.google.protobuf.Struct.getDefaultInstance() : payload_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * Value to append directly to [QueryResult.webhook_payloads][google.cloud.dialogflow.cx.v3beta1.QueryResult.webhook_payloads].
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 4;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.StructOrBuilder getPayloadOrBuilder() {
+    return getPayload();
+  }
+
+  public static final int TARGET_PAGE_FIELD_NUMBER = 5;
+  /**
+   *
+   *
+   * <pre>
+   * The target page to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_page = 5 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The targetPage.
+   */
+  public java.lang.String getTargetPage() {
+    java.lang.Object ref = "";
+    if (transitionCase_ == 5) {
+      ref = transition_;
+    }
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      if (transitionCase_ == 5) {
+        transition_ = s;
+      }
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The target page to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_page = 5 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for targetPage.
+   */
+  public com.google.protobuf.ByteString getTargetPageBytes() {
+    java.lang.Object ref = "";
+    if (transitionCase_ == 5) {
+      ref = transition_;
+    }
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      if (transitionCase_ == 5) {
+        transition_ = b;
+      }
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int TARGET_FLOW_FIELD_NUMBER = 6;
+  /**
+   *
+   *
+   * <pre>
+   * The target flow to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_flow = 6 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The targetFlow.
+   */
+  public java.lang.String getTargetFlow() {
+    java.lang.Object ref = "";
+    if (transitionCase_ == 6) {
+      ref = transition_;
+    }
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      if (transitionCase_ == 6) {
+        transition_ = s;
+      }
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The target flow to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_flow = 6 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for targetFlow.
+   */
+  public com.google.protobuf.ByteString getTargetFlowBytes() {
+    java.lang.Object ref = "";
+    if (transitionCase_ == 6) {
+      ref = transition_;
+    }
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      if (transitionCase_ == 6) {
+        transition_ = b;
+      }
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (fulfillmentResponse_ != null) {
+      output.writeMessage(1, getFulfillmentResponse());
+    }
+    if (pageInfo_ != null) {
+      output.writeMessage(2, getPageInfo());
+    }
+    if (sessionInfo_ != null) {
+      output.writeMessage(3, getSessionInfo());
+    }
+    if (payload_ != null) {
+      output.writeMessage(4, getPayload());
+    }
+    if (transitionCase_ == 5) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 5, transition_);
+    }
+    if (transitionCase_ == 6) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 6, transition_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (fulfillmentResponse_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getFulfillmentResponse());
+    }
+    if (pageInfo_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getPageInfo());
+    }
+    if (sessionInfo_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getSessionInfo());
+    }
+    if (payload_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, getPayload());
+    }
+    if (transitionCase_ == 5) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, transition_);
+    }
+    if (transitionCase_ == 6) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, transition_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse other =
+        (com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse) obj;
+
+    if (hasFulfillmentResponse() != other.hasFulfillmentResponse()) return false;
+    if (hasFulfillmentResponse()) {
+      if (!getFulfillmentResponse().equals(other.getFulfillmentResponse())) return false;
+    }
+    if (hasPageInfo() != other.hasPageInfo()) return false;
+    if (hasPageInfo()) {
+      if (!getPageInfo().equals(other.getPageInfo())) return false;
+    }
+    if (hasSessionInfo() != other.hasSessionInfo()) return false;
+    if (hasSessionInfo()) {
+      if (!getSessionInfo().equals(other.getSessionInfo())) return false;
+    }
+    if (hasPayload() != other.hasPayload()) return false;
+    if (hasPayload()) {
+      if (!getPayload().equals(other.getPayload())) return false;
+    }
+    if (!getTransitionCase().equals(other.getTransitionCase())) return false;
+    switch (transitionCase_) {
+      case 5:
+        if (!getTargetPage().equals(other.getTargetPage())) return false;
+        break;
+      case 6:
+        if (!getTargetFlow().equals(other.getTargetFlow())) return false;
+        break;
+      case 0:
+      default:
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasFulfillmentResponse()) {
+      hash = (37 * hash) + FULFILLMENT_RESPONSE_FIELD_NUMBER;
+      hash = (53 * hash) + getFulfillmentResponse().hashCode();
+    }
+    if (hasPageInfo()) {
+      hash = (37 * hash) + PAGE_INFO_FIELD_NUMBER;
+      hash = (53 * hash) + getPageInfo().hashCode();
+    }
+    if (hasSessionInfo()) {
+      hash = (37 * hash) + SESSION_INFO_FIELD_NUMBER;
+      hash = (53 * hash) + getSessionInfo().hashCode();
+    }
+    if (hasPayload()) {
+      hash = (37 * hash) + PAYLOAD_FIELD_NUMBER;
+      hash = (53 * hash) + getPayload().hashCode();
+    }
+    switch (transitionCase_) {
+      case 5:
+        hash = (37 * hash) + TARGET_PAGE_FIELD_NUMBER;
+        hash = (53 * hash) + getTargetPage().hashCode();
+        break;
+      case 6:
+        hash = (37 * hash) + TARGET_FLOW_FIELD_NUMBER;
+        hash = (53 * hash) + getTargetFlow().hashCode();
+        break;
+      case 0:
+      default:
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The response message for a webhook call.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.dialogflow.cx.v3beta1.WebhookResponse}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.cx.v3beta1.WebhookResponse)
+      com.google.cloud.dialogflow.cx.v3beta1.WebhookResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.class,
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (fulfillmentResponseBuilder_ == null) {
+        fulfillmentResponse_ = null;
+      } else {
+        fulfillmentResponse_ = null;
+        fulfillmentResponseBuilder_ = null;
+      }
+      if (pageInfoBuilder_ == null) {
+        pageInfo_ = null;
+      } else {
+        pageInfo_ = null;
+        pageInfoBuilder_ = null;
+      }
+      if (sessionInfoBuilder_ == null) {
+        sessionInfo_ = null;
+      } else {
+        sessionInfo_ = null;
+        sessionInfoBuilder_ = null;
+      }
+      if (payloadBuilder_ == null) {
+        payload_ = null;
+      } else {
+        payload_ = null;
+        payloadBuilder_ = null;
+      }
+      transitionCase_ = 0;
+      transition_ = null;
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookProto
+          .internal_static_google_cloud_dialogflow_cx_v3beta1_WebhookResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse build() {
+      com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse buildPartial() {
+      com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse result =
+          new com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse(this);
+      if (fulfillmentResponseBuilder_ == null) {
+        result.fulfillmentResponse_ = fulfillmentResponse_;
+      } else {
+        result.fulfillmentResponse_ = fulfillmentResponseBuilder_.build();
+      }
+      if (pageInfoBuilder_ == null) {
+        result.pageInfo_ = pageInfo_;
+      } else {
+        result.pageInfo_ = pageInfoBuilder_.build();
+      }
+      if (sessionInfoBuilder_ == null) {
+        result.sessionInfo_ = sessionInfo_;
+      } else {
+        result.sessionInfo_ = sessionInfoBuilder_.build();
+      }
+      if (payloadBuilder_ == null) {
+        result.payload_ = payload_;
+      } else {
+        result.payload_ = payloadBuilder_.build();
+      }
+      if (transitionCase_ == 5) {
+        result.transition_ = transition_;
+      }
+      if (transitionCase_ == 6) {
+        result.transition_ = transition_;
+      }
+      result.transitionCase_ = transitionCase_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse) {
+        return mergeFrom((com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse other) {
+      if (other == com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.getDefaultInstance())
+        return this;
+      if (other.hasFulfillmentResponse()) {
+        mergeFulfillmentResponse(other.getFulfillmentResponse());
+      }
+      if (other.hasPageInfo()) {
+        mergePageInfo(other.getPageInfo());
+      }
+      if (other.hasSessionInfo()) {
+        mergeSessionInfo(other.getSessionInfo());
+      }
+      if (other.hasPayload()) {
+        mergePayload(other.getPayload());
+      }
+      switch (other.getTransitionCase()) {
+        case TARGET_PAGE:
+          {
+            transitionCase_ = 5;
+            transition_ = other.transition_;
+            onChanged();
+            break;
+          }
+        case TARGET_FLOW:
+          {
+            transitionCase_ = 6;
+            transition_ = other.transition_;
+            onChanged();
+            break;
+          }
+        case TRANSITION_NOT_SET:
+          {
+            break;
+          }
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int transitionCase_ = 0;
+    private java.lang.Object transition_;
+
+    public TransitionCase getTransitionCase() {
+      return TransitionCase.forNumber(transitionCase_);
+    }
+
+    public Builder clearTransition() {
+      transitionCase_ = 0;
+      transition_ = null;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+        fulfillmentResponse_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponseOrBuilder>
+        fulfillmentResponseBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment response to send to the user. This field can be omitted by
+     * the webhook if it does not intend to send any response to the user.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse fulfillment_response = 1;
+     * </code>
+     *
+     * @return Whether the fulfillmentResponse field is set.
+     */
+    public boolean hasFulfillmentResponse() {
+      return fulfillmentResponseBuilder_ != null || fulfillmentResponse_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment response to send to the user. This field can be omitted by
+     * the webhook if it does not intend to send any response to the user.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse fulfillment_response = 1;
+     * </code>
+     *
+     * @return The fulfillmentResponse.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+        getFulfillmentResponse() {
+      if (fulfillmentResponseBuilder_ == null) {
+        return fulfillmentResponse_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+                .getDefaultInstance()
+            : fulfillmentResponse_;
+      } else {
+        return fulfillmentResponseBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment response to send to the user. This field can be omitted by
+     * the webhook if it does not intend to send any response to the user.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse fulfillment_response = 1;
+     * </code>
+     */
+    public Builder setFulfillmentResponse(
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse value) {
+      if (fulfillmentResponseBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        fulfillmentResponse_ = value;
+        onChanged();
+      } else {
+        fulfillmentResponseBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment response to send to the user. This field can be omitted by
+     * the webhook if it does not intend to send any response to the user.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse fulfillment_response = 1;
+     * </code>
+     */
+    public Builder setFulfillmentResponse(
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.Builder
+            builderForValue) {
+      if (fulfillmentResponseBuilder_ == null) {
+        fulfillmentResponse_ = builderForValue.build();
+        onChanged();
+      } else {
+        fulfillmentResponseBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment response to send to the user. This field can be omitted by
+     * the webhook if it does not intend to send any response to the user.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse fulfillment_response = 1;
+     * </code>
+     */
+    public Builder mergeFulfillmentResponse(
+        com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse value) {
+      if (fulfillmentResponseBuilder_ == null) {
+        if (fulfillmentResponse_ != null) {
+          fulfillmentResponse_ =
+              com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.newBuilder(
+                      fulfillmentResponse_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          fulfillmentResponse_ = value;
+        }
+        onChanged();
+      } else {
+        fulfillmentResponseBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment response to send to the user. This field can be omitted by
+     * the webhook if it does not intend to send any response to the user.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse fulfillment_response = 1;
+     * </code>
+     */
+    public Builder clearFulfillmentResponse() {
+      if (fulfillmentResponseBuilder_ == null) {
+        fulfillmentResponse_ = null;
+        onChanged();
+      } else {
+        fulfillmentResponse_ = null;
+        fulfillmentResponseBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment response to send to the user. This field can be omitted by
+     * the webhook if it does not intend to send any response to the user.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse fulfillment_response = 1;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.Builder
+        getFulfillmentResponseBuilder() {
+
+      onChanged();
+      return getFulfillmentResponseFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment response to send to the user. This field can be omitted by
+     * the webhook if it does not intend to send any response to the user.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse fulfillment_response = 1;
+     * </code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponseOrBuilder
+        getFulfillmentResponseOrBuilder() {
+      if (fulfillmentResponseBuilder_ != null) {
+        return fulfillmentResponseBuilder_.getMessageOrBuilder();
+      } else {
+        return fulfillmentResponse_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+                .getDefaultInstance()
+            : fulfillmentResponse_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The fulfillment response to send to the user. This field can be omitted by
+     * the webhook if it does not intend to send any response to the user.
+     * </pre>
+     *
+     * <code>
+     * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse fulfillment_response = 1;
+     * </code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponseOrBuilder>
+        getFulfillmentResponseFieldBuilder() {
+      if (fulfillmentResponseBuilder_ == null) {
+        fulfillmentResponseBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse,
+                com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse
+                    .FulfillmentResponseOrBuilder>(
+                getFulfillmentResponse(), getParentForChildren(), isClean());
+        fulfillmentResponse_ = null;
+      }
+      return fulfillmentResponseBuilder_;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.PageInfo pageInfo_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.PageInfo,
+            com.google.cloud.dialogflow.cx.v3beta1.PageInfo.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.PageInfoOrBuilder>
+        pageInfoBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Information about page status. This field can be omitted by the webhook if
+     * it does not intend to modify page status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 2;</code>
+     *
+     * @return Whether the pageInfo field is set.
+     */
+    public boolean hasPageInfo() {
+      return pageInfoBuilder_ != null || pageInfo_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about page status. This field can be omitted by the webhook if
+     * it does not intend to modify page status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 2;</code>
+     *
+     * @return The pageInfo.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.PageInfo getPageInfo() {
+      if (pageInfoBuilder_ == null) {
+        return pageInfo_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.PageInfo.getDefaultInstance()
+            : pageInfo_;
+      } else {
+        return pageInfoBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about page status. This field can be omitted by the webhook if
+     * it does not intend to modify page status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 2;</code>
+     */
+    public Builder setPageInfo(com.google.cloud.dialogflow.cx.v3beta1.PageInfo value) {
+      if (pageInfoBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        pageInfo_ = value;
+        onChanged();
+      } else {
+        pageInfoBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about page status. This field can be omitted by the webhook if
+     * it does not intend to modify page status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 2;</code>
+     */
+    public Builder setPageInfo(
+        com.google.cloud.dialogflow.cx.v3beta1.PageInfo.Builder builderForValue) {
+      if (pageInfoBuilder_ == null) {
+        pageInfo_ = builderForValue.build();
+        onChanged();
+      } else {
+        pageInfoBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about page status. This field can be omitted by the webhook if
+     * it does not intend to modify page status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 2;</code>
+     */
+    public Builder mergePageInfo(com.google.cloud.dialogflow.cx.v3beta1.PageInfo value) {
+      if (pageInfoBuilder_ == null) {
+        if (pageInfo_ != null) {
+          pageInfo_ =
+              com.google.cloud.dialogflow.cx.v3beta1.PageInfo.newBuilder(pageInfo_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          pageInfo_ = value;
+        }
+        onChanged();
+      } else {
+        pageInfoBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about page status. This field can be omitted by the webhook if
+     * it does not intend to modify page status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 2;</code>
+     */
+    public Builder clearPageInfo() {
+      if (pageInfoBuilder_ == null) {
+        pageInfo_ = null;
+        onChanged();
+      } else {
+        pageInfo_ = null;
+        pageInfoBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about page status. This field can be omitted by the webhook if
+     * it does not intend to modify page status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 2;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.PageInfo.Builder getPageInfoBuilder() {
+
+      onChanged();
+      return getPageInfoFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about page status. This field can be omitted by the webhook if
+     * it does not intend to modify page status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 2;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.PageInfoOrBuilder getPageInfoOrBuilder() {
+      if (pageInfoBuilder_ != null) {
+        return pageInfoBuilder_.getMessageOrBuilder();
+      } else {
+        return pageInfo_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.PageInfo.getDefaultInstance()
+            : pageInfo_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about page status. This field can be omitted by the webhook if
+     * it does not intend to modify page status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 2;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.PageInfo,
+            com.google.cloud.dialogflow.cx.v3beta1.PageInfo.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.PageInfoOrBuilder>
+        getPageInfoFieldBuilder() {
+      if (pageInfoBuilder_ == null) {
+        pageInfoBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.PageInfo,
+                com.google.cloud.dialogflow.cx.v3beta1.PageInfo.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.PageInfoOrBuilder>(
+                getPageInfo(), getParentForChildren(), isClean());
+        pageInfo_ = null;
+      }
+      return pageInfoBuilder_;
+    }
+
+    private com.google.cloud.dialogflow.cx.v3beta1.SessionInfo sessionInfo_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.SessionInfo,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionInfoOrBuilder>
+        sessionInfoBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Information about session status. This field can be omitted by the webhook
+     * if it does not intend to modify session status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 3;</code>
+     *
+     * @return Whether the sessionInfo field is set.
+     */
+    public boolean hasSessionInfo() {
+      return sessionInfoBuilder_ != null || sessionInfo_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about session status. This field can be omitted by the webhook
+     * if it does not intend to modify session status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 3;</code>
+     *
+     * @return The sessionInfo.
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionInfo getSessionInfo() {
+      if (sessionInfoBuilder_ == null) {
+        return sessionInfo_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.getDefaultInstance()
+            : sessionInfo_;
+      } else {
+        return sessionInfoBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about session status. This field can be omitted by the webhook
+     * if it does not intend to modify session status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 3;</code>
+     */
+    public Builder setSessionInfo(com.google.cloud.dialogflow.cx.v3beta1.SessionInfo value) {
+      if (sessionInfoBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        sessionInfo_ = value;
+        onChanged();
+      } else {
+        sessionInfoBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about session status. This field can be omitted by the webhook
+     * if it does not intend to modify session status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 3;</code>
+     */
+    public Builder setSessionInfo(
+        com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.Builder builderForValue) {
+      if (sessionInfoBuilder_ == null) {
+        sessionInfo_ = builderForValue.build();
+        onChanged();
+      } else {
+        sessionInfoBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about session status. This field can be omitted by the webhook
+     * if it does not intend to modify session status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 3;</code>
+     */
+    public Builder mergeSessionInfo(com.google.cloud.dialogflow.cx.v3beta1.SessionInfo value) {
+      if (sessionInfoBuilder_ == null) {
+        if (sessionInfo_ != null) {
+          sessionInfo_ =
+              com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.newBuilder(sessionInfo_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          sessionInfo_ = value;
+        }
+        onChanged();
+      } else {
+        sessionInfoBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about session status. This field can be omitted by the webhook
+     * if it does not intend to modify session status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 3;</code>
+     */
+    public Builder clearSessionInfo() {
+      if (sessionInfoBuilder_ == null) {
+        sessionInfo_ = null;
+        onChanged();
+      } else {
+        sessionInfo_ = null;
+        sessionInfoBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about session status. This field can be omitted by the webhook
+     * if it does not intend to modify session status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 3;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.Builder getSessionInfoBuilder() {
+
+      onChanged();
+      return getSessionInfoFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about session status. This field can be omitted by the webhook
+     * if it does not intend to modify session status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 3;</code>
+     */
+    public com.google.cloud.dialogflow.cx.v3beta1.SessionInfoOrBuilder getSessionInfoOrBuilder() {
+      if (sessionInfoBuilder_ != null) {
+        return sessionInfoBuilder_.getMessageOrBuilder();
+      } else {
+        return sessionInfo_ == null
+            ? com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.getDefaultInstance()
+            : sessionInfo_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Information about session status. This field can be omitted by the webhook
+     * if it does not intend to modify session status.
+     * </pre>
+     *
+     * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 3;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.cx.v3beta1.SessionInfo,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.Builder,
+            com.google.cloud.dialogflow.cx.v3beta1.SessionInfoOrBuilder>
+        getSessionInfoFieldBuilder() {
+      if (sessionInfoBuilder_ == null) {
+        sessionInfoBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.cx.v3beta1.SessionInfo,
+                com.google.cloud.dialogflow.cx.v3beta1.SessionInfo.Builder,
+                com.google.cloud.dialogflow.cx.v3beta1.SessionInfoOrBuilder>(
+                getSessionInfo(), getParentForChildren(), isClean());
+        sessionInfo_ = null;
+      }
+      return sessionInfoBuilder_;
+    }
+
+    private com.google.protobuf.Struct payload_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Struct,
+            com.google.protobuf.Struct.Builder,
+            com.google.protobuf.StructOrBuilder>
+        payloadBuilder_;
+    /**
+     *
+     *
+     * <pre>
+     * Value to append directly to [QueryResult.webhook_payloads][google.cloud.dialogflow.cx.v3beta1.QueryResult.webhook_payloads].
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 4;</code>
+     *
+     * @return Whether the payload field is set.
+     */
+    public boolean hasPayload() {
+      return payloadBuilder_ != null || payload_ != null;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Value to append directly to [QueryResult.webhook_payloads][google.cloud.dialogflow.cx.v3beta1.QueryResult.webhook_payloads].
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 4;</code>
+     *
+     * @return The payload.
+     */
+    public com.google.protobuf.Struct getPayload() {
+      if (payloadBuilder_ == null) {
+        return payload_ == null ? com.google.protobuf.Struct.getDefaultInstance() : payload_;
+      } else {
+        return payloadBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Value to append directly to [QueryResult.webhook_payloads][google.cloud.dialogflow.cx.v3beta1.QueryResult.webhook_payloads].
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 4;</code>
+     */
+    public Builder setPayload(com.google.protobuf.Struct value) {
+      if (payloadBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        payload_ = value;
+        onChanged();
+      } else {
+        payloadBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Value to append directly to [QueryResult.webhook_payloads][google.cloud.dialogflow.cx.v3beta1.QueryResult.webhook_payloads].
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 4;</code>
+     */
+    public Builder setPayload(com.google.protobuf.Struct.Builder builderForValue) {
+      if (payloadBuilder_ == null) {
+        payload_ = builderForValue.build();
+        onChanged();
+      } else {
+        payloadBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Value to append directly to [QueryResult.webhook_payloads][google.cloud.dialogflow.cx.v3beta1.QueryResult.webhook_payloads].
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 4;</code>
+     */
+    public Builder mergePayload(com.google.protobuf.Struct value) {
+      if (payloadBuilder_ == null) {
+        if (payload_ != null) {
+          payload_ =
+              com.google.protobuf.Struct.newBuilder(payload_).mergeFrom(value).buildPartial();
+        } else {
+          payload_ = value;
+        }
+        onChanged();
+      } else {
+        payloadBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Value to append directly to [QueryResult.webhook_payloads][google.cloud.dialogflow.cx.v3beta1.QueryResult.webhook_payloads].
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 4;</code>
+     */
+    public Builder clearPayload() {
+      if (payloadBuilder_ == null) {
+        payload_ = null;
+        onChanged();
+      } else {
+        payload_ = null;
+        payloadBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Value to append directly to [QueryResult.webhook_payloads][google.cloud.dialogflow.cx.v3beta1.QueryResult.webhook_payloads].
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 4;</code>
+     */
+    public com.google.protobuf.Struct.Builder getPayloadBuilder() {
+
+      onChanged();
+      return getPayloadFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Value to append directly to [QueryResult.webhook_payloads][google.cloud.dialogflow.cx.v3beta1.QueryResult.webhook_payloads].
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 4;</code>
+     */
+    public com.google.protobuf.StructOrBuilder getPayloadOrBuilder() {
+      if (payloadBuilder_ != null) {
+        return payloadBuilder_.getMessageOrBuilder();
+      } else {
+        return payload_ == null ? com.google.protobuf.Struct.getDefaultInstance() : payload_;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * Value to append directly to [QueryResult.webhook_payloads][google.cloud.dialogflow.cx.v3beta1.QueryResult.webhook_payloads].
+     * </pre>
+     *
+     * <code>.google.protobuf.Struct payload = 4;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Struct,
+            com.google.protobuf.Struct.Builder,
+            com.google.protobuf.StructOrBuilder>
+        getPayloadFieldBuilder() {
+      if (payloadBuilder_ == null) {
+        payloadBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.Struct,
+                com.google.protobuf.Struct.Builder,
+                com.google.protobuf.StructOrBuilder>(
+                getPayload(), getParentForChildren(), isClean());
+        payload_ = null;
+      }
+      return payloadBuilder_;
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * The target page to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_page = 5 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The targetPage.
+     */
+    @java.lang.Override
+    public java.lang.String getTargetPage() {
+      java.lang.Object ref = "";
+      if (transitionCase_ == 5) {
+        ref = transition_;
+      }
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (transitionCase_ == 5) {
+          transition_ = s;
+        }
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target page to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_page = 5 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The bytes for targetPage.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getTargetPageBytes() {
+      java.lang.Object ref = "";
+      if (transitionCase_ == 5) {
+        ref = transition_;
+      }
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        if (transitionCase_ == 5) {
+          transition_ = b;
+        }
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target page to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_page = 5 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The targetPage to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTargetPage(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      transitionCase_ = 5;
+      transition_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target page to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_page = 5 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearTargetPage() {
+      if (transitionCase_ == 5) {
+        transitionCase_ = 0;
+        transition_ = null;
+        onChanged();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target page to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_page = 5 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The bytes for targetPage to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTargetPageBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      transitionCase_ = 5;
+      transition_ = value;
+      onChanged();
+      return this;
+    }
+
+    /**
+     *
+     *
+     * <pre>
+     * The target flow to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_flow = 6 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The targetFlow.
+     */
+    @java.lang.Override
+    public java.lang.String getTargetFlow() {
+      java.lang.Object ref = "";
+      if (transitionCase_ == 6) {
+        ref = transition_;
+      }
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (transitionCase_ == 6) {
+          transition_ = s;
+        }
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target flow to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_flow = 6 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The bytes for targetFlow.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getTargetFlowBytes() {
+      java.lang.Object ref = "";
+      if (transitionCase_ == 6) {
+        ref = transition_;
+      }
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        if (transitionCase_ == 6) {
+          transition_ = b;
+        }
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target flow to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_flow = 6 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The targetFlow to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTargetFlow(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      transitionCase_ = 6;
+      transition_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target flow to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_flow = 6 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearTargetFlow() {
+      if (transitionCase_ == 6) {
+        transitionCase_ = 0;
+        transition_ = null;
+        onChanged();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The target flow to transition to.
+     * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;`.
+     * </pre>
+     *
+     * <code>string target_flow = 6 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The bytes for targetFlow to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTargetFlowBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      transitionCase_ = 6;
+      transition_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.cx.v3beta1.WebhookResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.cx.v3beta1.WebhookResponse)
+  private static final com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse();
+  }
+
+  public static com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<WebhookResponse> PARSER =
+      new com.google.protobuf.AbstractParser<WebhookResponse>() {
+        @java.lang.Override
+        public WebhookResponse parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new WebhookResponse(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser<WebhookResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<WebhookResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookResponseOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookResponseOrBuilder.java
new file mode 100644
index 000000000..95adb567c
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookResponseOrBuilder.java
@@ -0,0 +1,242 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/cx/v3beta1/webhook.proto
+
+package com.google.cloud.dialogflow.cx.v3beta1;
+
+public interface WebhookResponseOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.cx.v3beta1.WebhookResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment response to send to the user. This field can be omitted by
+   * the webhook if it does not intend to send any response to the user.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse fulfillment_response = 1;
+   * </code>
+   *
+   * @return Whether the fulfillmentResponse field is set.
+   */
+  boolean hasFulfillmentResponse();
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment response to send to the user. This field can be omitted by
+   * the webhook if it does not intend to send any response to the user.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse fulfillment_response = 1;
+   * </code>
+   *
+   * @return The fulfillmentResponse.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse
+      getFulfillmentResponse();
+  /**
+   *
+   *
+   * <pre>
+   * The fulfillment response to send to the user. This field can be omitted by
+   * the webhook if it does not intend to send any response to the user.
+   * </pre>
+   *
+   * <code>
+   * .google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponse fulfillment_response = 1;
+   * </code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.FulfillmentResponseOrBuilder
+      getFulfillmentResponseOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Information about page status. This field can be omitted by the webhook if
+   * it does not intend to modify page status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 2;</code>
+   *
+   * @return Whether the pageInfo field is set.
+   */
+  boolean hasPageInfo();
+  /**
+   *
+   *
+   * <pre>
+   * Information about page status. This field can be omitted by the webhook if
+   * it does not intend to modify page status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 2;</code>
+   *
+   * @return The pageInfo.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.PageInfo getPageInfo();
+  /**
+   *
+   *
+   * <pre>
+   * Information about page status. This field can be omitted by the webhook if
+   * it does not intend to modify page status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.PageInfo page_info = 2;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.PageInfoOrBuilder getPageInfoOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Information about session status. This field can be omitted by the webhook
+   * if it does not intend to modify session status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 3;</code>
+   *
+   * @return Whether the sessionInfo field is set.
+   */
+  boolean hasSessionInfo();
+  /**
+   *
+   *
+   * <pre>
+   * Information about session status. This field can be omitted by the webhook
+   * if it does not intend to modify session status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 3;</code>
+   *
+   * @return The sessionInfo.
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.SessionInfo getSessionInfo();
+  /**
+   *
+   *
+   * <pre>
+   * Information about session status. This field can be omitted by the webhook
+   * if it does not intend to modify session status.
+   * </pre>
+   *
+   * <code>.google.cloud.dialogflow.cx.v3beta1.SessionInfo session_info = 3;</code>
+   */
+  com.google.cloud.dialogflow.cx.v3beta1.SessionInfoOrBuilder getSessionInfoOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * Value to append directly to [QueryResult.webhook_payloads][google.cloud.dialogflow.cx.v3beta1.QueryResult.webhook_payloads].
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 4;</code>
+   *
+   * @return Whether the payload field is set.
+   */
+  boolean hasPayload();
+  /**
+   *
+   *
+   * <pre>
+   * Value to append directly to [QueryResult.webhook_payloads][google.cloud.dialogflow.cx.v3beta1.QueryResult.webhook_payloads].
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 4;</code>
+   *
+   * @return The payload.
+   */
+  com.google.protobuf.Struct getPayload();
+  /**
+   *
+   *
+   * <pre>
+   * Value to append directly to [QueryResult.webhook_payloads][google.cloud.dialogflow.cx.v3beta1.QueryResult.webhook_payloads].
+   * </pre>
+   *
+   * <code>.google.protobuf.Struct payload = 4;</code>
+   */
+  com.google.protobuf.StructOrBuilder getPayloadOrBuilder();
+
+  /**
+   *
+   *
+   * <pre>
+   * The target page to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_page = 5 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The targetPage.
+   */
+  java.lang.String getTargetPage();
+  /**
+   *
+   *
+   * <pre>
+   * The target page to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/pages/&lt;Page ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_page = 5 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for targetPage.
+   */
+  com.google.protobuf.ByteString getTargetPageBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The target flow to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_flow = 6 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The targetFlow.
+   */
+  java.lang.String getTargetFlow();
+  /**
+   *
+   *
+   * <pre>
+   * The target flow to transition to.
+   * Format: `projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;`.
+   * </pre>
+   *
+   * <code>string target_flow = 6 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for targetFlow.
+   */
+  com.google.protobuf.ByteString getTargetFlowBytes();
+
+  public com.google.cloud.dialogflow.cx.v3beta1.WebhookResponse.TransitionCase getTransitionCase();
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/agent.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/agent.proto
new file mode 100644
index 000000000..e2510668e
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/agent.proto
@@ -0,0 +1,318 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.dialogflow.cx.v3beta1;
+
+import "google/api/annotations.proto";
+import "google/api/client.proto";
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
+import "google/cloud/dialogflow/cx/v3beta1/flow.proto";
+import "google/longrunning/operations.proto";
+import "google/protobuf/empty.proto";
+import "google/protobuf/field_mask.proto";
+
+option cc_enable_arenas = true;
+option csharp_namespace = "Google.Cloud.Dialogflow.Cx.V3Beta1";
+option go_package = "google.golang.org/genproto/googleapis/cloud/dialogflow/cx/v3beta1;cx";
+option java_multiple_files = true;
+option java_outer_classname = "AgentProto";
+option java_package = "com.google.cloud.dialogflow.cx.v3beta1";
+option objc_class_prefix = "DF";
+
+// Service for managing [Agents][google.cloud.dialogflow.cx.v3beta1.Agent].
+service Agents {
+  option (google.api.default_host) = "dialogflow.googleapis.com";
+  option (google.api.oauth_scopes) =
+      "https://www.googleapis.com/auth/cloud-platform,"
+      "https://www.googleapis.com/auth/dialogflow";
+
+  // Returns the list of all agents in the specified location.
+  rpc ListAgents(ListAgentsRequest) returns (ListAgentsResponse) {
+    option (google.api.http) = {
+      get: "/v3beta1/{parent=projects/*/locations/*}/agents"
+    };
+    option (google.api.method_signature) = "parent";
+  }
+
+  // Retrieves the specified agent.
+  rpc GetAgent(GetAgentRequest) returns (Agent) {
+    option (google.api.http) = {
+      get: "/v3beta1/{name=projects/*/locations/*/agents/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+
+  // Creates an agent in the specified location.
+  rpc CreateAgent(CreateAgentRequest) returns (Agent) {
+    option (google.api.http) = {
+      post: "/v3beta1/{parent=projects/*/locations/*}/agents"
+      body: "agent"
+    };
+    option (google.api.method_signature) = "parent,agent";
+  }
+
+  // Updates the specified agent.
+  rpc UpdateAgent(UpdateAgentRequest) returns (Agent) {
+    option (google.api.http) = {
+      patch: "/v3beta1/{agent.name=projects/*/locations/*/agents/*}"
+      body: "agent"
+    };
+    option (google.api.method_signature) = "agent,update_mask";
+  }
+
+  // Deletes the specified agent.
+  rpc DeleteAgent(DeleteAgentRequest) returns (google.protobuf.Empty) {
+    option (google.api.http) = {
+      delete: "/v3beta1/{name=projects/*/locations/*/agents/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+
+  // Exports the specified agent to a ZIP file.
+  rpc ExportAgent(ExportAgentRequest) returns (google.longrunning.Operation) {
+    option (google.api.http) = {
+      post: "/v3beta1/{name=projects/*/locations/*/agents/*}:export"
+      body: "*"
+    };
+    option (google.longrunning.operation_info) = {
+      response_type: "ExportAgentResponse"
+      metadata_type: "google.protobuf.Struct"
+    };
+  }
+
+  // Restores the specified agent from a ZIP file.
+  //
+  // Note that all existing intents, intent routes, entity types, pages and
+  // webhooks in the agent will be deleted.
+  rpc RestoreAgent(RestoreAgentRequest) returns (google.longrunning.Operation) {
+    option (google.api.http) = {
+      post: "/v3beta1/{name=projects/*/locations/*/agents/*}:restore"
+      body: "*"
+    };
+    option (google.longrunning.operation_info) = {
+      response_type: "google.protobuf.Empty"
+      metadata_type: "google.protobuf.Struct"
+    };
+  }
+}
+
+// Settings related to speech recognition.
+message SpeechToTextSettings {
+  // Whether to use speech adaptation for speech recognition.
+  bool enable_speech_adaptation = 1;
+}
+
+// Agents are best described as Natural Language Understanding (NLU) modules
+// that transform user requests into actionable data. You can include agents
+// in your app, product, or service to determine user intent and respond to the
+// user in a natural way.
+//
+// After you create an agent, you can add [Intents][google.cloud.dialogflow.cx.v3beta1.Intent],
+// [Entity Types][google.cloud.dialogflow.cx.v3beta1.EntityType], [Flows][google.cloud.dialogflow.cx.v3beta1.Flow], [Fulfillments][google.cloud.dialogflow.cx.v3beta1.Fulfillment],
+// [Webhooks][google.cloud.dialogflow.cx.v3beta1.Webhook], and so on to manage the conversation flows..
+message Agent {
+  option (google.api.resource) = {
+    type: "dialogflow.googleapis.com/Agent"
+    pattern: "projects/{project}/locations/{location}/agents/{agent}"
+  };
+
+  // The unique identifier of the agent.
+  // Required for the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method. [Agents.CreateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.CreateAgent]
+  // populates the name automatically.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent ID>`.
+  string name = 1;
+
+  // Required. The human-readable name of the agent, unique within the location.
+  string display_name = 2 [(google.api.field_behavior) = REQUIRED];
+
+  // Immutable. The default language of the agent as a language tag.
+  // See [Language
+  // Support](https://cloud.google.com/dialogflow/docs/reference/language)
+  // for a list of the currently supported language codes.
+  // This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method.
+  string default_language_code = 3 [(google.api.field_behavior) = IMMUTABLE];
+
+  // Required. The time zone of the agent from the [time zone
+  // database](https://www.iana.org/time-zones), e.g., America/New_York,
+  // Europe/Paris.
+  string time_zone = 5 [(google.api.field_behavior) = REQUIRED];
+
+  // The description of the agent. The maximum length is 500 characters. If
+  // exceeded, the request is rejected.
+  string description = 6;
+
+  // The URI of the agent's avatar. Avatars are used throughout the Dialogflow
+  // console and in the self-hosted [Web
+  // Demo](https://cloud.google.com/dialogflow/docs/integrations/web-demo)
+  // integration.
+  string avatar_uri = 7;
+
+  // Speech recognition related settings.
+  SpeechToTextSettings speech_to_text_settings = 13;
+
+  // Immutable. Name of the start flow in this agent. A start flow will be automatically
+  // created when the agent is created, and can only be deleted by deleting the
+  // agent.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>`.
+  string start_flow = 16 [
+    (google.api.field_behavior) = IMMUTABLE,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Flow"
+    }
+  ];
+
+  // Indicates if stackdriver logging is enabled for the agent.
+  bool enable_stackdriver_logging = 18;
+
+  // Indicates if automatic spell correction is enabled in detect intent
+  // requests.
+  bool enable_spell_correction = 20;
+}
+
+// The request message for [Agents.ListAgents][google.cloud.dialogflow.cx.v3beta1.Agents.ListAgents].
+message ListAgentsRequest {
+  // Required. The location to list all agents for.
+  // Format: `projects/<Project ID>/locations/<Location ID>`.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/Agent"
+    }
+  ];
+
+  // The maximum number of items to return in a single page. By default 100 and
+  // at most 1000.
+  int32 page_size = 2;
+
+  // The next_page_token value returned from a previous list request.
+  string page_token = 3;
+}
+
+// The response message for [Agents.ListAgents][google.cloud.dialogflow.cx.v3beta1.Agents.ListAgents].
+message ListAgentsResponse {
+  // The list of agents. There will be a maximum number of items returned based
+  // on the page_size field in the request.
+  repeated Agent agents = 1;
+
+  // Token to retrieve the next page of results, or empty if there are no more
+  // results in the list.
+  string next_page_token = 2;
+}
+
+// The request message for [Agents.GetAgent][google.cloud.dialogflow.cx.v3beta1.Agents.GetAgent].
+message GetAgentRequest {
+  // Required. The name of the agent.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Agent"
+    }
+  ];
+}
+
+// The request message for [Agents.CreateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.CreateAgent].
+message CreateAgentRequest {
+  // Required. The location to create a agent for.
+  // Format: `projects/<Project ID>/locations/<Location ID>`.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/Agent"
+    }
+  ];
+
+  // Required. The agent to create.
+  Agent agent = 2 [(google.api.field_behavior) = REQUIRED];
+}
+
+// The request message for [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent].
+message UpdateAgentRequest {
+  // Required. The agent to update.
+  Agent agent = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // The mask to control which fields get updated. If the mask is not present,
+  // all fields will be updated.
+  google.protobuf.FieldMask update_mask = 2;
+}
+
+// The request message for [Agents.DeleteAgent][google.cloud.dialogflow.cx.v3beta1.Agents.DeleteAgent].
+message DeleteAgentRequest {
+  // Required. The name of the agent to delete.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Agent"
+    }
+  ];
+}
+
+// The request message for [Agents.ExportAgent][google.cloud.dialogflow.cx.v3beta1.Agents.ExportAgent].
+message ExportAgentRequest {
+  // Required. The name of the agent to export.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Agent"
+    }
+  ];
+
+  // Optional. The [Google Cloud Storage](https://cloud.google.com/storage/docs/) URI to
+  // export the agent to. The format of this URI must be
+  // `gs://<bucket-name>/<object-name>`.
+  // If left unspecified, the serialized agent is returned inline.
+  string agent_uri = 2 [(google.api.field_behavior) = OPTIONAL];
+}
+
+// The response message for [Agents.ExportAgent][google.cloud.dialogflow.cx.v3beta1.Agents.ExportAgent].
+message ExportAgentResponse {
+  // The exported agent.
+  oneof agent {
+    // The URI to a file containing the exported agent. This field is populated
+    // only if `agent_uri` is specified in [ExportAgentRequest][google.cloud.dialogflow.cx.v3beta1.ExportAgentRequest].
+    string agent_uri = 1;
+
+    // Uncompressed raw byte content for agent.
+    bytes agent_content = 2;
+  }
+}
+
+// The request message for [Agents.RestoreAgent][google.cloud.dialogflow.cx.v3beta1.Agents.RestoreAgent].
+message RestoreAgentRequest {
+  // Required. The name of the agent to restore into.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Agent"
+    }
+  ];
+
+  // Required. The agent to restore.
+  oneof agent {
+    // The [Google Cloud Storage](https://cloud.google.com/storage/docs/) URI
+    // to restore agent from. The format of this URI must be
+    // `gs://<bucket-name>/<object-name>`.
+    string agent_uri = 2;
+
+    // Uncompressed raw byte content for agent.
+    bytes agent_content = 3;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/audio_config.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/audio_config.proto
new file mode 100644
index 000000000..c0043a529
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/audio_config.proto
@@ -0,0 +1,305 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.dialogflow.cx.v3beta1;
+
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
+import "google/protobuf/duration.proto";
+import "google/api/annotations.proto";
+
+option cc_enable_arenas = true;
+option csharp_namespace = "Google.Cloud.Dialogflow.Cx.V3Beta1";
+option go_package = "google.golang.org/genproto/googleapis/cloud/dialogflow/cx/v3beta1;cx";
+option java_multiple_files = true;
+option java_outer_classname = "AudioConfigProto";
+option java_package = "com.google.cloud.dialogflow.cx.v3beta1";
+option objc_class_prefix = "DF";
+
+// Audio encoding of the audio content sent in the conversational query request.
+// Refer to the
+// [Cloud Speech API
+// documentation](https://cloud.google.com/speech-to-text/docs/basics) for more
+// details.
+enum AudioEncoding {
+  // Not specified.
+  AUDIO_ENCODING_UNSPECIFIED = 0;
+
+  // Uncompressed 16-bit signed little-endian samples (Linear PCM).
+  AUDIO_ENCODING_LINEAR_16 = 1;
+
+  // [`FLAC`](https://xiph.org/flac/documentation.html) (Free Lossless Audio
+  // Codec) is the recommended encoding because it is lossless (therefore
+  // recognition is not compromised) and requires only about half the
+  // bandwidth of `LINEAR16`. `FLAC` stream encoding supports 16-bit and
+  // 24-bit samples, however, not all fields in `STREAMINFO` are supported.
+  AUDIO_ENCODING_FLAC = 2;
+
+  // 8-bit samples that compand 14-bit audio samples using G.711 PCMU/mu-law.
+  AUDIO_ENCODING_MULAW = 3;
+
+  // Adaptive Multi-Rate Narrowband codec. `sample_rate_hertz` must be 8000.
+  AUDIO_ENCODING_AMR = 4;
+
+  // Adaptive Multi-Rate Wideband codec. `sample_rate_hertz` must be 16000.
+  AUDIO_ENCODING_AMR_WB = 5;
+
+  // Opus encoded audio frames in Ogg container
+  // ([OggOpus](https://wiki.xiph.org/OggOpus)).
+  // `sample_rate_hertz` must be 16000.
+  AUDIO_ENCODING_OGG_OPUS = 6;
+
+  // Although the use of lossy encodings is not recommended, if a very low
+  // bitrate encoding is required, `OGG_OPUS` is highly preferred over
+  // Speex encoding. The [Speex](https://speex.org/) encoding supported by
+  // Dialogflow API has a header byte in each block, as in MIME type
+  // `audio/x-speex-with-header-byte`.
+  // It is a variant of the RTP Speex encoding defined in
+  // [RFC 5574](https://tools.ietf.org/html/rfc5574).
+  // The stream is a sequence of blocks, one block per RTP packet. Each block
+  // starts with a byte containing the length of the block, in bytes, followed
+  // by one or more frames of Speex data, padded to an integral number of
+  // bytes (octets) as specified in RFC 5574. In other words, each RTP header
+  // is replaced with a single byte containing the block length. Only Speex
+  // wideband is supported. `sample_rate_hertz` must be 16000.
+  AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE = 7;
+}
+
+// Information for a word recognized by the speech recognizer.
+message SpeechWordInfo {
+  // The word this info is for.
+  string word = 3;
+
+  // Time offset relative to the beginning of the audio that corresponds to the
+  // start of the spoken word. This is an experimental feature and the accuracy
+  // of the time offset can vary.
+  google.protobuf.Duration start_offset = 1;
+
+  // Time offset relative to the beginning of the audio that corresponds to the
+  // end of the spoken word. This is an experimental feature and the accuracy of
+  // the time offset can vary.
+  google.protobuf.Duration end_offset = 2;
+
+  // The Speech confidence between 0.0 and 1.0 for this word. A higher number
+  // indicates an estimated greater likelihood that the recognized word is
+  // correct. The default of 0.0 is a sentinel value indicating that confidence
+  // was not set.
+  //
+  // This field is not guaranteed to be fully stable over time for the same
+  // audio input. Users should also not rely on it to always be provided.
+  float confidence = 4;
+}
+
+// Instructs the speech recognizer on how to process the audio content.
+message InputAudioConfig {
+  // Required. Audio encoding of the audio content to process.
+  AudioEncoding audio_encoding = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // Sample rate (in Hertz) of the audio content sent in the query.
+  // Refer to
+  // [Cloud Speech API
+  // documentation](https://cloud.google.com/speech-to-text/docs/basics) for
+  // more details.
+  int32 sample_rate_hertz = 2;
+
+  // Optional. If `true`, Dialogflow returns [SpeechWordInfo][google.cloud.dialogflow.cx.v3beta1.SpeechWordInfo] in
+  // [StreamingRecognitionResult][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult] with information about the recognized speech
+  // words, e.g. start and end time offsets. If false or unspecified, Speech
+  // doesn't return any word-level information.
+  bool enable_word_info = 13;
+
+  // Optional. A list of strings containing words and phrases that the speech
+  // recognizer should recognize with higher likelihood.
+  //
+  // See [the Cloud Speech
+  // documentation](https://cloud.google.com/speech-to-text/docs/basics#phrase-hints)
+  // for more details.
+  repeated string phrase_hints = 4;
+
+  // Optional. Which Speech model to select for the given request. Select the
+  // model best suited to your domain to get best results. If a model is not
+  // explicitly specified, then we auto-select a model based on the parameters
+  // in the InputAudioConfig.
+  // If enhanced speech model is enabled for the agent and an enhanced
+  // version of the specified model for the language does not exist, then the
+  // speech is recognized using the standard version of the specified model.
+  // Refer to
+  // [Cloud Speech API
+  // documentation](https://cloud.google.com/speech-to-text/docs/basics#select-model)
+  // for more details.
+  string model = 7;
+
+  // Optional. Which variant of the [Speech model][google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.model] to use.
+  SpeechModelVariant model_variant = 10;
+
+  // Optional. If `false` (default), recognition does not cease until the
+  // client closes the stream.
+  // If `true`, the recognizer will detect a single spoken utterance in input
+  // audio. Recognition ceases when it detects the audio's voice has
+  // stopped or paused. In this case, once a detected intent is received, the
+  // client should close the stream and start a new request with a new stream as
+  // needed.
+  // Note: This setting is relevant only for streaming methods.
+  bool single_utterance = 8;
+}
+
+// Variant of the specified [Speech model][google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.model] to use.
+//
+// See the [Cloud Speech
+// documentation](https://cloud.google.com/speech-to-text/docs/enhanced-models)
+// for which models have different variants. For example, the "phone_call" model
+// has both a standard and an enhanced variant. When you use an enhanced model,
+// you will generally receive higher quality results than for a standard model.
+enum SpeechModelVariant {
+  // No model variant specified. In this case Dialogflow defaults to
+  // USE_BEST_AVAILABLE.
+  SPEECH_MODEL_VARIANT_UNSPECIFIED = 0;
+
+  // Use the best available variant of the [Speech
+  // model][InputAudioConfig.model] that the caller is eligible for.
+  //
+  // Please see the [Dialogflow
+  // docs](https://cloud.google.com/dialogflow/docs/data-logging) for
+  // how to make your project eligible for enhanced models.
+  USE_BEST_AVAILABLE = 1;
+
+  // Use standard model variant even if an enhanced model is available.  See the
+  // [Cloud Speech
+  // documentation](https://cloud.google.com/speech-to-text/docs/enhanced-models)
+  // for details about enhanced models.
+  USE_STANDARD = 2;
+
+  // Use an enhanced model variant:
+  //
+  // * If an enhanced variant does not exist for the given
+  //   [model][google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.model] and request language, Dialogflow falls
+  //   back to the standard variant.
+  //
+  //   The [Cloud Speech
+  //   documentation](https://cloud.google.com/speech-to-text/docs/enhanced-models)
+  //   describes which models have enhanced variants.
+  //
+  // * If the API caller isn't eligible for enhanced models, Dialogflow returns
+  //   an error.  Please see the [Dialogflow
+  //   docs](https://cloud.google.com/dialogflow/docs/data-logging)
+  //   for how to make your project eligible.
+  USE_ENHANCED = 3;
+}
+
+// Description of which voice to use for speech synthesis.
+message VoiceSelectionParams {
+  // Optional. The name of the voice. If not set, the service will choose a
+  // voice based on the other parameters such as language_code and
+  // [ssml_gender][google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.ssml_gender].
+  string name = 1;
+
+  // Optional. The preferred gender of the voice. If not set, the service will
+  // choose a voice based on the other parameters such as language_code and
+  // [name][google.cloud.dialogflow.cx.v3beta1.VoiceSelectionParams.name]. Note that this is only a preference, not requirement. If a
+  // voice of the appropriate gender is not available, the synthesizer should
+  // substitute a voice with a different gender rather than failing the request.
+  SsmlVoiceGender ssml_gender = 2;
+}
+
+// Configuration of how speech should be synthesized.
+message SynthesizeSpeechConfig {
+  // Optional. Speaking rate/speed, in the range [0.25, 4.0]. 1.0 is the normal
+  // native speed supported by the specific voice. 2.0 is twice as fast, and
+  // 0.5 is half as fast. If unset(0.0), defaults to the native 1.0 speed. Any
+  // other values < 0.25 or > 4.0 will return an error.
+  double speaking_rate = 1;
+
+  // Optional. Speaking pitch, in the range [-20.0, 20.0]. 20 means increase 20
+  // semitones from the original pitch. -20 means decrease 20 semitones from the
+  // original pitch.
+  double pitch = 2;
+
+  // Optional. Volume gain (in dB) of the normal native volume supported by the
+  // specific voice, in the range [-96.0, 16.0]. If unset, or set to a value of
+  // 0.0 (dB), will play at normal native signal amplitude. A value of -6.0 (dB)
+  // will play at approximately half the amplitude of the normal native signal
+  // amplitude. A value of +6.0 (dB) will play at approximately twice the
+  // amplitude of the normal native signal amplitude. We strongly recommend not
+  // to exceed +10 (dB) as there's usually no effective increase in loudness for
+  // any value greater than that.
+  double volume_gain_db = 3;
+
+  // Optional. An identifier which selects 'audio effects' profiles that are
+  // applied on (post synthesized) text to speech. Effects are applied on top of
+  // each other in the order they are given.
+  repeated string effects_profile_id = 5;
+
+  // Optional. The desired voice of the synthesized audio.
+  VoiceSelectionParams voice = 4;
+}
+
+// Gender of the voice as described in
+// [SSML voice element](https://www.w3.org/TR/speech-synthesis11/#edef_voice).
+enum SsmlVoiceGender {
+  // An unspecified gender, which means that the client doesn't care which
+  // gender the selected voice will have.
+  SSML_VOICE_GENDER_UNSPECIFIED = 0;
+
+  // A male voice.
+  SSML_VOICE_GENDER_MALE = 1;
+
+  // A female voice.
+  SSML_VOICE_GENDER_FEMALE = 2;
+
+  // A gender-neutral voice.
+  SSML_VOICE_GENDER_NEUTRAL = 3;
+}
+
+// Instructs the speech synthesizer how to generate the output audio content.
+message OutputAudioConfig {
+  // Required. Audio encoding of the synthesized audio content.
+  OutputAudioEncoding audio_encoding = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // Optional. The synthesis sample rate (in hertz) for this audio. If not
+  // provided, then the synthesizer will use the default sample rate based on
+  // the audio encoding. If this is different from the voice's natural sample
+  // rate, then the synthesizer will honor this request by converting to the
+  // desired sample rate (which might result in worse audio quality).
+  int32 sample_rate_hertz = 2;
+
+  // Optional. Configuration of how speech should be synthesized.
+  SynthesizeSpeechConfig synthesize_speech_config = 3;
+}
+
+// Audio encoding of the output audio format in Text-To-Speech.
+enum OutputAudioEncoding {
+  // Not specified.
+  OUTPUT_AUDIO_ENCODING_UNSPECIFIED = 0;
+
+  // Uncompressed 16-bit signed little-endian samples (Linear PCM).
+  // Audio content returned as LINEAR16 also contains a WAV header.
+  OUTPUT_AUDIO_ENCODING_LINEAR_16 = 1;
+
+  // MP3 audio at 32kbps.
+  OUTPUT_AUDIO_ENCODING_MP3 = 2;
+
+  // MP3 audio at 64kbps.
+  OUTPUT_AUDIO_ENCODING_MP3_64_KBPS = 4;
+
+  // Opus encoded audio wrapped in an ogg container. The result will be a
+  // file which can be played natively on Android, and in browsers (at least
+  // Chrome and Firefox). The quality of the encoding is considerably higher
+  // than MP3 while using approximately the same bitrate.
+  OUTPUT_AUDIO_ENCODING_OGG_OPUS = 3;
+
+  // 8-bit samples that compand 14-bit audio samples using G.711 PCMU/mu-law.
+  OUTPUT_AUDIO_ENCODING_MULAW = 5;
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/entity_type.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/entity_type.proto
new file mode 100644
index 000000000..f12cd70f8
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/entity_type.proto
@@ -0,0 +1,342 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.dialogflow.cx.v3beta1;
+
+import "google/api/annotations.proto";
+import "google/api/client.proto";
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
+import "google/protobuf/empty.proto";
+import "google/protobuf/field_mask.proto";
+
+option cc_enable_arenas = true;
+option csharp_namespace = "Google.Cloud.Dialogflow.Cx.V3Beta1";
+option go_package = "google.golang.org/genproto/googleapis/cloud/dialogflow/cx/v3beta1;cx";
+option java_multiple_files = true;
+option java_outer_classname = "EntityTypeProto";
+option java_package = "com.google.cloud.dialogflow.cx.v3beta1";
+option objc_class_prefix = "DF";
+
+// Service for managing [EntityTypes][google.cloud.dialogflow.cx.v3beta1.EntityType].
+service EntityTypes {
+  option (google.api.default_host) = "dialogflow.googleapis.com";
+  option (google.api.oauth_scopes) =
+      "https://www.googleapis.com/auth/cloud-platform,"
+      "https://www.googleapis.com/auth/dialogflow";
+
+  // Returns the list of all entity types in the specified agent.
+  rpc ListEntityTypes(ListEntityTypesRequest) returns (ListEntityTypesResponse) {
+    option (google.api.http) = {
+      get: "/v3beta1/{parent=projects/*/locations/*/agents/*}/entityTypes"
+    };
+    option (google.api.method_signature) = "parent";
+  }
+
+  // Retrieves the specified entity type.
+  rpc GetEntityType(GetEntityTypeRequest) returns (EntityType) {
+    option (google.api.http) = {
+      get: "/v3beta1/{name=projects/*/locations/*/agents/*/entityTypes/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+
+  // Creates an entity type in the specified agent.
+  rpc CreateEntityType(CreateEntityTypeRequest) returns (EntityType) {
+    option (google.api.http) = {
+      post: "/v3beta1/{parent=projects/*/locations/*/agents/*}/entityTypes"
+      body: "entity_type"
+    };
+    option (google.api.method_signature) = "parent,entity_type";
+  }
+
+  // Updates the specified entity type.
+  rpc UpdateEntityType(UpdateEntityTypeRequest) returns (EntityType) {
+    option (google.api.http) = {
+      patch: "/v3beta1/{entity_type.name=projects/*/locations/*/agents/*/entityTypes/*}"
+      body: "entity_type"
+    };
+    option (google.api.method_signature) = "entity_type,update_mask";
+  }
+
+  // Deletes the specified entity type.
+  rpc DeleteEntityType(DeleteEntityTypeRequest) returns (google.protobuf.Empty) {
+    option (google.api.http) = {
+      delete: "/v3beta1/{name=projects/*/locations/*/agents/*/entityTypes/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+}
+
+// Entities are extracted from user input and represent parameters that are
+// meaningful to your application. For example, a date range, a proper name
+// such as a geographic location or landmark, and so on. Entities represent
+// actionable data for your application.
+//
+// When you define an entity, you can also include synonyms that all map to
+// that entity. For example, "soft drink", "soda", "pop", and so on.
+//
+// There are three types of entities:
+//
+// *   **System** - entities that are defined by the Dialogflow API for common
+//     data types such as date, time, currency, and so on. A system entity is
+//     represented by the `EntityType` type.
+//
+// *   **Custom** - entities that are defined by you that represent
+//     actionable data that is meaningful to your application. For example,
+//     you could define a `pizza.sauce` entity for red or white pizza sauce,
+//     a `pizza.cheese` entity for the different types of cheese on a pizza,
+//     a `pizza.topping` entity for different toppings, and so on. A custom
+//     entity is represented by the `EntityType` type.
+//
+// *   **User** - entities that are built for an individual user such as
+//     favorites, preferences, playlists, and so on. A user entity is
+//     represented by the [SessionEntityType][google.cloud.dialogflow.cx.v3beta1.SessionEntityType] type.
+//
+// For more information about entity types, see the [Dialogflow
+// documentation](https://cloud.google.com/dialogflow/docs/entities-overview).
+message EntityType {
+  option (google.api.resource) = {
+    type: "dialogflow.googleapis.com/EntityType"
+    pattern: "projects/{project}/locations/{location}/agents/{agent}/entityTypes/{entity_type}"
+  };
+
+  // An **entity entry** for an associated entity type.
+  // Next Id = 8
+  message Entity {
+    // Required. The primary value associated with this entity entry.
+    // For example, if the entity type is *vegetable*, the value could be
+    // *scallions*.
+    //
+    // For `KIND_MAP` entity types:
+    //
+    // *   A canonical value to be used in place of synonyms.
+    //
+    // For `KIND_LIST` entity types:
+    //
+    // *   A string that can contain references to other entity types (with or
+    //     without aliases).
+    string value = 1 [(google.api.field_behavior) = REQUIRED];
+
+    // Required. A collection of value synonyms. For example, if the entity type
+    // is *vegetable*, and `value` is *scallions*, a synonym could be *green
+    // onions*.
+    //
+    // For `KIND_LIST` entity types:
+    //
+    // *   This collection must contain exactly one synonym equal to `value`.
+    repeated string synonyms = 2 [(google.api.field_behavior) = REQUIRED];
+  }
+
+  // An excluded entity phrase that should not be matched.
+  message ExcludedPhrase {
+    // Required. The word or phrase to be excluded.
+    string value = 1 [(google.api.field_behavior) = REQUIRED];
+  }
+
+  // Represents kinds of entities.
+  enum Kind {
+    // Not specified. This value should be never used.
+    KIND_UNSPECIFIED = 0;
+
+    // Map entity types allow mapping of a group of synonyms to a canonical
+    // value.
+    KIND_MAP = 1;
+
+    // List entity types contain a set of entries that do not map to canonical
+    // values. However, list entity types can contain references to other entity
+    // types (with or without aliases).
+    KIND_LIST = 2;
+
+    // Regexp entity types allow to specify regular expressions in entries
+    // values.
+    KIND_REGEXP = 3;
+  }
+
+  // Represents different entity type expansion modes. Automated expansion
+  // allows an agent to recognize values that have not been explicitly listed in
+  // the entity (for example, new kinds of shopping list items).
+  enum AutoExpansionMode {
+    // Auto expansion disabled for the entity.
+    AUTO_EXPANSION_MODE_UNSPECIFIED = 0;
+
+    // Allows an agent to recognize values that have not been explicitly
+    // listed in the entity.
+    AUTO_EXPANSION_MODE_DEFAULT = 1;
+  }
+
+  // The unique identifier of the entity type.
+  // Required for [EntityTypes.UpdateEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.UpdateEntityType].
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/entityTypes/<Entity Type ID>`.
+  string name = 1;
+
+  // Required. The human-readable name of the entity type, unique within the agent.
+  string display_name = 2 [(google.api.field_behavior) = REQUIRED];
+
+  // Required. Indicates the kind of entity type.
+  Kind kind = 3 [(google.api.field_behavior) = REQUIRED];
+
+  // Indicates whether the entity type can be automatically expanded.
+  AutoExpansionMode auto_expansion_mode = 4;
+
+  // The collection of entity entries associated with the entity type.
+  repeated Entity entities = 5;
+
+  // Collection of exceptional words and phrases that shouldn't be matched.
+  // For example, if you have a size entity type with entry `giant`(an
+  // adjective), you might consider adding `giants`(a noun) as an exclusion.
+  // If the kind of entity type is `KIND_MAP`, then the phrases specified by
+  // entities and excluded phrases should be mutually exclusive.
+  repeated ExcludedPhrase excluded_phrases = 6;
+
+  // Enables fuzzy entity extraction during classification.
+  bool enable_fuzzy_extraction = 7;
+}
+
+// The request message for [EntityTypes.ListEntityTypes][google.cloud.dialogflow.cx.v3beta1.EntityTypes.ListEntityTypes].
+message ListEntityTypesRequest {
+  // Required. The agent to list all entity types for.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent ID>`.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/EntityType"
+    }
+  ];
+
+  // The language to list entity types for. The following fields are language
+  // dependent:
+  //
+  // *   `EntityType.entities.value`
+  // *   `EntityType.entities.synonyms`
+  // *   `EntityType.excluded_phrases.value`
+  //
+  // If not specified, the agent's default language is used.
+  // [Many
+  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // are supported.
+  // Note: languages must be enabled in the agent before they can be used.
+  string language_code = 2;
+
+  // The maximum number of items to return in a single page. By default 100 and
+  // at most 1000.
+  int32 page_size = 3;
+
+  // The next_page_token value returned from a previous list request.
+  string page_token = 4;
+}
+
+// The response message for [EntityTypes.ListEntityTypes][google.cloud.dialogflow.cx.v3beta1.EntityTypes.ListEntityTypes].
+message ListEntityTypesResponse {
+  // The list of entity types. There will be a maximum number of items returned
+  // based on the page_size field in the request.
+  repeated EntityType entity_types = 1;
+
+  // Token to retrieve the next page of results, or empty if there are no
+  // more results in the list.
+  string next_page_token = 2;
+}
+
+// The request message for [EntityTypes.GetEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.GetEntityType].
+message GetEntityTypeRequest {
+  // Required. The name of the entity type.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/entityTypes/<Entity Type ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/EntityType"
+    }
+  ];
+
+  // The language to retrieve the entity type for. The following fields are
+  // language dependent:
+  //
+  // *   `EntityType.entities.value`
+  // *   `EntityType.entities.synonyms`
+  // *   `EntityType.excluded_phrases.value`
+  //
+  // If not specified, the agent's default language is used.
+  // [Many
+  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // are supported.
+  // Note: languages must be enabled in the agent before they can be used.
+  string language_code = 2;
+}
+
+// The request message for [EntityTypes.CreateEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.CreateEntityType].
+message CreateEntityTypeRequest {
+  // Required. The agent to create a entity type for.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent ID>`.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/EntityType"
+    }
+  ];
+
+  // Required. The entity type to create.
+  EntityType entity_type = 2 [(google.api.field_behavior) = REQUIRED];
+
+  // The language of the following fields in `entity_type`:
+  //
+  // *   `EntityType.entities.value`
+  // *   `EntityType.entities.synonyms`
+  // *   `EntityType.excluded_phrases.value`
+  //
+  // If not specified, the agent's default language is used.
+  // [Many
+  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // are supported.
+  // Note: languages must be enabled in the agent before they can be used.
+  string language_code = 3;
+}
+
+// The request message for [EntityTypes.UpdateEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.UpdateEntityType].
+message UpdateEntityTypeRequest {
+  // Required. The entity type to update.
+  EntityType entity_type = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // The language of the following fields in `entity_type`:
+  //
+  // *   `EntityType.entities.value`
+  // *   `EntityType.entities.synonyms`
+  // *   `EntityType.excluded_phrases.value`
+  //
+  // If not specified, the agent's default language is used.
+  // [Many
+  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // are supported.
+  // Note: languages must be enabled in the agent before they can be used.
+  string language_code = 2;
+
+  // The mask to control which fields get updated.
+  google.protobuf.FieldMask update_mask = 3;
+}
+
+// The request message for [EntityTypes.DeleteEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.DeleteEntityType].
+message DeleteEntityTypeRequest {
+  // Required. The name of the entity type to delete.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/entityTypes/<Entity Type ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/EntityType"
+    }
+  ];
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/environment.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/environment.proto
new file mode 100644
index 000000000..a5c444c3d
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/environment.proto
@@ -0,0 +1,262 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.dialogflow.cx.v3beta1;
+
+import "google/api/annotations.proto";
+import "google/api/client.proto";
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
+import "google/longrunning/operations.proto";
+import "google/protobuf/empty.proto";
+import "google/protobuf/field_mask.proto";
+import "google/protobuf/timestamp.proto";
+
+option cc_enable_arenas = true;
+option csharp_namespace = "Google.Cloud.Dialogflow.Cx.V3Beta1";
+option go_package = "google.golang.org/genproto/googleapis/cloud/dialogflow/cx/v3beta1;cx";
+option java_multiple_files = true;
+option java_outer_classname = "EnvironmentProto";
+option java_package = "com.google.cloud.dialogflow.cx.v3beta1";
+option objc_class_prefix = "DF";
+
+// Service for managing [Environments][google.cloud.dialogflow.cx.v3beta1.Environment].
+service Environments {
+  option (google.api.default_host) = "dialogflow.googleapis.com";
+  option (google.api.oauth_scopes) =
+      "https://www.googleapis.com/auth/cloud-platform,"
+      "https://www.googleapis.com/auth/dialogflow";
+
+  // Returns the list of all environments in the specified [Agent][google.cloud.dialogflow.cx.v3beta1.Agent].
+  rpc ListEnvironments(ListEnvironmentsRequest) returns (ListEnvironmentsResponse) {
+    option (google.api.http) = {
+      get: "/v3beta1/{parent=projects/*/locations/*/agents/*}/environments"
+    };
+    option (google.api.method_signature) = "parent";
+  }
+
+  // Retrieves the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+  rpc GetEnvironment(GetEnvironmentRequest) returns (Environment) {
+    option (google.api.http) = {
+      get: "/v3beta1/{name=projects/*/locations/*/agents/*/environments/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+
+  // Creates an [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] in the specified [Agent][google.cloud.dialogflow.cx.v3beta1.Agent].
+  rpc CreateEnvironment(CreateEnvironmentRequest) returns (google.longrunning.Operation) {
+    option (google.api.http) = {
+      post: "/v3beta1/{parent=projects/*/locations/*/agents/*}/environments"
+      body: "environment"
+    };
+    option (google.api.method_signature) = "parent,environment";
+    option (google.longrunning.operation_info) = {
+      response_type: "Environment"
+      metadata_type: "google.protobuf.Struct"
+    };
+  }
+
+  // Updates the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+  rpc UpdateEnvironment(UpdateEnvironmentRequest) returns (google.longrunning.Operation) {
+    option (google.api.http) = {
+      patch: "/v3beta1/{environment.name=projects/*/locations/*/agents/*/environments/*}"
+      body: "environment"
+    };
+    option (google.api.method_signature) = "environment,update_mask";
+    option (google.longrunning.operation_info) = {
+      response_type: "Environment"
+      metadata_type: "google.protobuf.Struct"
+    };
+  }
+
+  // Deletes the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+  rpc DeleteEnvironment(DeleteEnvironmentRequest) returns (google.protobuf.Empty) {
+    option (google.api.http) = {
+      delete: "/v3beta1/{name=projects/*/locations/*/agents/*/environments/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+
+  // Looks up the history of the specified [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+  rpc LookupEnvironmentHistory(LookupEnvironmentHistoryRequest) returns (LookupEnvironmentHistoryResponse) {
+    option (google.api.http) = {
+      get: "/v3beta1/{name=projects/*/locations/*/agents/*/environments/*}:lookupEnvironmentHistory"
+    };
+    option (google.api.method_signature) = "name";
+  }
+}
+
+// Represents an environment for an agent. You can create multiple versions
+// of your agent and publish them to separate environments. When you edit an
+// agent, you are editing the draft agent. At any point, you can save the draft
+// agent as an agent version, which is an immutable snapshot of your agent. When
+// you save the draft agent, it is published to the default environment. When
+// you create agent versions, you can publish them to custom environments. You
+// can create a variety of custom environments for testing, development,
+// production, etc.
+message Environment {
+  option (google.api.resource) = {
+    type: "dialogflow.googleapis.com/Environment"
+    pattern: "projects/{project}/locations/{location}/agents/{agent}/environments/{environment}"
+  };
+
+  // Configuration for the version.
+  message VersionConfig {
+    // Required. Format: projects/<Project ID>/locations/<Location ID>/agents/<Agent
+    // ID>/flows/<Flow ID>/versions/<Version ID>.
+    string version = 1 [
+      (google.api.field_behavior) = REQUIRED,
+      (google.api.resource_reference) = {
+        type: "dialogflow.googleapis.com/Version"
+      }
+    ];
+  }
+
+  // The name of the environment.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/environments/<Environment ID>`.
+  string name = 1;
+
+  // Required. The human-readable name of the environment (unique in an agent). Limit of
+  // 64 characters.
+  string display_name = 2 [(google.api.field_behavior) = REQUIRED];
+
+  // The human-readable description of the environment. The maximum length is
+  // 500 characters. If exceeded, the request is rejected.
+  string description = 3;
+
+  // Required. A list of configurations for flow versions. You should include version
+  // configs for all flows that are reachable from [`Start
+  // Flow`][Agent.start_flow] in the agent. Otherwise, an error will be
+  // returned.
+  repeated VersionConfig version_configs = 6 [(google.api.field_behavior) = REQUIRED];
+
+  // Output only. Update time of this environment.
+  google.protobuf.Timestamp update_time = 5 [(google.api.field_behavior) = OUTPUT_ONLY];
+}
+
+// The request message for [Environments.ListEnvironments][google.cloud.dialogflow.cx.v3beta1.Environments.ListEnvironments].
+message ListEnvironmentsRequest {
+  // Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to list all environments for.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent ID>`.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/Environment"
+    }
+  ];
+
+  // The maximum number of items to return in a single page. By default 20 and
+  // at most 100.
+  int32 page_size = 2;
+
+  // The next_page_token value returned from a previous list request.
+  string page_token = 3;
+}
+
+// The response message for [Environments.ListEnvironments][google.cloud.dialogflow.cx.v3beta1.Environments.ListEnvironments].
+message ListEnvironmentsResponse {
+  // The list of environments. There will be a maximum number of items
+  // returned based on the page_size field in the request. The list may in some
+  // cases be empty or contain fewer entries than page_size even if this isn't
+  // the last page.
+  repeated Environment environments = 1;
+
+  // Token to retrieve the next page of results, or empty if there are no more
+  // results in the list.
+  string next_page_token = 2;
+}
+
+// The request message for [Environments.GetEnvironment][google.cloud.dialogflow.cx.v3beta1.Environments.GetEnvironment].
+message GetEnvironmentRequest {
+  // Required. The name of the [Environment][google.cloud.dialogflow.cx.v3beta1.Environment].
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/environments/<Environment ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Environment"
+    }
+  ];
+}
+
+// The request message for [Environments.CreateEnvironment][google.cloud.dialogflow.cx.v3beta1.Environments.CreateEnvironment].
+message CreateEnvironmentRequest {
+  // Required. The [Agent][google.cloud.dialogflow.cx.v3beta1.Agent] to create an [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] for.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent ID>`.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/Environment"
+    }
+  ];
+
+  // Required. The environment to create.
+  Environment environment = 2 [(google.api.field_behavior) = REQUIRED];
+}
+
+// The request message for [Environments.UpdateEnvironment][google.cloud.dialogflow.cx.v3beta1.Environments.UpdateEnvironment].
+message UpdateEnvironmentRequest {
+  // Required. The environment to update.
+  Environment environment = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // Required. The mask to control which fields get updated.
+  google.protobuf.FieldMask update_mask = 2 [(google.api.field_behavior) = REQUIRED];
+}
+
+// The request message for [Environments.DeleteEnvironment][google.cloud.dialogflow.cx.v3beta1.Environments.DeleteEnvironment].
+message DeleteEnvironmentRequest {
+  // Required. The name of the [Environment][google.cloud.dialogflow.cx.v3beta1.Environment] to delete.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/environments/<Environment ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Environment"
+    }
+  ];
+}
+
+// The request message for [Environments.LookupEnvironmentHistory][google.cloud.dialogflow.cx.v3beta1.Environments.LookupEnvironmentHistory].
+message LookupEnvironmentHistoryRequest {
+  // Required. Resource name of the environment to look up the history for.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/environments/<Environment ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Environment"
+    }
+  ];
+
+  // The maximum number of items to return in a single page. By default 100 and
+  // at most 1000.
+  int32 page_size = 2;
+
+  // The next_page_token value returned from a previous list request.
+  string page_token = 3;
+}
+
+// The response message for [Environments.LookupEnvironmentHistory][google.cloud.dialogflow.cx.v3beta1.Environments.LookupEnvironmentHistory].
+message LookupEnvironmentHistoryResponse {
+  // Represents a list of snapshots for an environment. Time of the snapshots is
+  // stored in [`update_time`][google.cloud.dialogflow.cx.v3beta1.Environment.update_time].
+  repeated Environment environments = 1;
+
+  // Token to retrieve the next page of results, or empty if there are no more
+  // results in the list.
+  string next_page_token = 2;
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/flow.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/flow.proto
new file mode 100644
index 000000000..6541a9d94
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/flow.proto
@@ -0,0 +1,367 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.dialogflow.cx.v3beta1;
+
+import "google/api/annotations.proto";
+import "google/api/client.proto";
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
+import "google/cloud/dialogflow/cx/v3beta1/page.proto";
+import "google/longrunning/operations.proto";
+import "google/protobuf/empty.proto";
+import "google/protobuf/field_mask.proto";
+
+option cc_enable_arenas = true;
+option csharp_namespace = "Google.Cloud.Dialogflow.Cx.V3Beta1";
+option go_package = "google.golang.org/genproto/googleapis/cloud/dialogflow/cx/v3beta1;cx";
+option java_multiple_files = true;
+option java_outer_classname = "FlowProto";
+option java_package = "com.google.cloud.dialogflow.cx.v3beta1";
+option objc_class_prefix = "DF";
+
+// Service for managing [Flows][google.cloud.dialogflow.cx.v3beta1.Flow].
+service Flows {
+  option (google.api.default_host) = "dialogflow.googleapis.com";
+  option (google.api.oauth_scopes) =
+      "https://www.googleapis.com/auth/cloud-platform,"
+      "https://www.googleapis.com/auth/dialogflow";
+
+  // Creates a flow in the specified agent.
+  rpc CreateFlow(CreateFlowRequest) returns (Flow) {
+    option (google.api.http) = {
+      post: "/v3beta1/{parent=projects/*/locations/*/agents/*}/flows"
+      body: "flow"
+    };
+    option (google.api.method_signature) = "parent,flow";
+  }
+
+  // Deletes a specified flow.
+  rpc DeleteFlow(DeleteFlowRequest) returns (google.protobuf.Empty) {
+    option (google.api.http) = {
+      delete: "/v3beta1/{name=projects/*/locations/*/agents/*/flows/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+
+  // Returns the list of all flows in the specified agent.
+  rpc ListFlows(ListFlowsRequest) returns (ListFlowsResponse) {
+    option (google.api.http) = {
+      get: "/v3beta1/{parent=projects/*/locations/*/agents/*}/flows"
+    };
+    option (google.api.method_signature) = "parent";
+  }
+
+  // Retrieves the specified flow.
+  rpc GetFlow(GetFlowRequest) returns (Flow) {
+    option (google.api.http) = {
+      get: "/v3beta1/{name=projects/*/locations/*/agents/*/flows/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+
+  // Updates the specified flow.
+  rpc UpdateFlow(UpdateFlowRequest) returns (Flow) {
+    option (google.api.http) = {
+      patch: "/v3beta1/{flow.name=projects/*/locations/*/agents/*/flows/*}"
+      body: "flow"
+    };
+    option (google.api.method_signature) = "flow,update_mask";
+  }
+
+  // Trains the specified flow. Note that only the flow in 'draft' environment
+  // is trained.
+  rpc TrainFlow(TrainFlowRequest) returns (google.longrunning.Operation) {
+    option (google.api.http) = {
+      post: "/v3beta1/{name=projects/*/locations/*/agents/*/flows/*}:train"
+      body: "*"
+    };
+    option (google.api.method_signature) = "name";
+    option (google.longrunning.operation_info) = {
+      response_type: "google.protobuf.Empty"
+      metadata_type: "google.protobuf.Struct"
+    };
+  }
+}
+
+// Settings related to NLU.
+message NluSettings {
+  // NLU model type.
+  enum ModelType {
+    // Not specified. `MODEL_TYPE_STANDARD` will be used.
+    MODEL_TYPE_UNSPECIFIED = 0;
+
+    // Use standard NLU model.
+    MODEL_TYPE_STANDARD = 1;
+
+    // Use custom NLU model.
+    MODEL_TYPE_CUSTOM = 2;
+
+    // Use advanced NLU model.
+    MODEL_TYPE_ADVANCED = 3;
+  }
+
+  // NLU model training mode.
+  enum ModelTrainingMode {
+    // Not specified. `MODEL_TRAINING_MODE_AUTOMATIC` will be used.
+    MODEL_TRAINING_MODE_UNSPECIFIED = 0;
+
+    // NLU model training is automatically triggered when a flow gets modified.
+    // User can also manually trigger model training in this mode.
+    MODEL_TRAINING_MODE_AUTOMATIC = 1;
+
+    // User needs to manually trigger NLU model training. Best for large flows
+    // whose models take long time to train.
+    MODEL_TRAINING_MODE_MANUAL = 2;
+  }
+
+  // Indicates the type of NLU model.
+  ModelType model_type = 1;
+
+  // To filter out false positive results and still get variety in matched
+  // natural language inputs for your agent, you can tune the machine learning
+  // classification threshold. If the returned score value is less than the
+  // threshold value, then a no-match event will be triggered. The score values
+  // range from 0.0 (completely uncertain) to 1.0 (completely certain). If set
+  // to 0.0, the default of 0.3 is used.
+  float classification_threshold = 3;
+
+  // Indicates NLU model training mode.
+  ModelTrainingMode model_training_mode = 4;
+
+  // Indicates if automatic spell correction is enabled in detect intent
+  // requests.
+  bool enable_spell_correction = 5 [deprecated = true];
+}
+
+// Flows represents the conversation flows when you build your chatbot agent.
+//
+// A flow consists of many pages connected by the transition routes.
+// Conversations always start with the built-in Start Flow (with an all-0 ID).
+// Transition routes can direct the conversation session from the current flow
+// (parent flow) to another flow (sub flow). When the sub flow is finished,
+// Dialogflow will bring the session back to the parent flow, where the sub flow
+// is started.
+//
+// Usually, when a transition route is followed by a matched intent, the intent
+// will be "consumed". This means the intent won't activate more transition
+// routes. However, when the followed transition route moves the conversation
+// session into a different flow, the matched intent can be carried over and to
+// be consumed in the target flow.
+message Flow {
+  option (google.api.resource) = {
+    type: "dialogflow.googleapis.com/Flow"
+    pattern: "projects/{project}/locations/{location}/agents/{agent}/flows/{flow}"
+  };
+
+  // The unique identifier of the flow.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>`.
+  string name = 1;
+
+  // Required. The human-readable name of the flow.
+  string display_name = 2 [(google.api.field_behavior) = REQUIRED];
+
+  // The description of the flow. The maximum length is 500 characters. If
+  // exceeded, the request is rejected.
+  string description = 3;
+
+  // A flow's transition routes serve two purposes:
+  //
+  // *   They are responsible for matching the user's first utterances in the
+  // flow.
+  // *   They are inherited by every page's [transition
+  // routes][Page.transition_routes] and can support use cases such as the user
+  // saying "help" or "can I talk to a human?", which can be handled in a common
+  // way regardless of the current page. Transition routes defined in the page
+  // have higher priority than those defined in the flow.
+  //
+  // TransitionRoutes are evalauted in the following order:
+  //
+  // *   TransitionRoutes with intent specified..
+  // *   TransitionRoutes with only condition specified.
+  //
+  // TransitionRoutes with intent specified are inherited by pages in the flow.
+  repeated TransitionRoute transition_routes = 4;
+
+  // A flow's event handlers serve two purposes:
+  //
+  // *   They are responsible for handling events (e.g. no match,
+  // webhook errors) in the flow.
+  // *   They are inherited by every page's [event
+  // handlers][Page.event_handlers], which can be used to handle common events
+  // regardless of the current page. Event handlers defined in the page
+  // have higher priority than those defined in the flow.
+  //
+  // Unlike [transition_routes][google.cloud.dialogflow.cx.v3beta1.Flow.transition_routes], these handlers are
+  // evaluated on a first-match basis. The first one that matches the event
+  // get executed, with the rest being ignored.
+  repeated EventHandler event_handlers = 10;
+
+  // NLU related settings of the flow.
+  NluSettings nlu_settings = 11;
+}
+
+// The request message for [Flows.CreateFlow][google.cloud.dialogflow.cx.v3beta1.Flows.CreateFlow].
+message CreateFlowRequest {
+  // Required. The agent to create a flow for.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent ID>`.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/Flow"
+    }
+  ];
+
+  // Required. The flow to create.
+  Flow flow = 2 [(google.api.field_behavior) = REQUIRED];
+
+  // The language of the following fields in `flow`:
+  //
+  // *  `Flow.event_handlers.trigger_fulfillment.messages`
+  // *  `Flow.transition_routes.trigger_fulfillment.messages`
+  //
+  // If not specified, the agent's default language is used.
+  // [Many
+  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // are supported.
+  // Note: languages must be enabled in the agent before they can be used.
+  string language_code = 3;
+}
+
+// The request message for [Flows.DeleteFlow][google.cloud.dialogflow.cx.v3beta1.Flows.DeleteFlow].
+message DeleteFlowRequest {
+  // Required. The name of the flow to delete.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Flow"
+    }
+  ];
+
+  // This field has no effect for flows with no incoming transitions.
+  // For flows with incoming transitions:
+  //
+  // *  If `force` is set to false, an error will be returned with message
+  //    indicating the incoming transitions.
+  // *  If `force` is set to true, Dialogflow will remove the flow, as well as
+  //    any transitions to the flow.
+  bool force = 2;
+}
+
+// The request message for [Flows.ListFlows][google.cloud.dialogflow.cx.v3beta1.Flows.ListFlows].
+message ListFlowsRequest {
+  // Required. The agent containing the flows.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent ID>`.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/Flow"
+    }
+  ];
+
+  // The maximum number of items to return in a single page. By default 100 and
+  // at most 1000.
+  int32 page_size = 2;
+
+  // The next_page_token value returned from a previous list request.
+  string page_token = 3;
+
+  // The language to list flows for. The following fields are language
+  // dependent:
+  //
+  // *  `Flow.event_handlers.trigger_fulfillment.messages`
+  // *  `Flow.transition_routes.trigger_fulfillment.messages`
+  //
+  // If not specified, the agent's default language is used.
+  // [Many
+  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // are supported.
+  // Note: languages must be enabled in the agent before they can be used.
+  string language_code = 4;
+}
+
+// The response message for [Flows.ListFlows][google.cloud.dialogflow.cx.v3beta1.Flows.ListFlows].
+message ListFlowsResponse {
+  // The list of flows. There will be a maximum number of items returned based
+  // on the page_size field in the request.
+  repeated Flow flows = 1;
+
+  // Token to retrieve the next page of results, or empty if there are no more
+  // results in the list.
+  string next_page_token = 2;
+}
+
+// The response message for [Flows.GetFlow][google.cloud.dialogflow.cx.v3beta1.Flows.GetFlow].
+message GetFlowRequest {
+  // Required. The name of the flow to get.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Flow"
+    }
+  ];
+
+  // The language to retrieve the flow for. The following fields are language
+  // dependent:
+  //
+  // *  `Flow.event_handlers.trigger_fulfillment.messages`
+  // *  `Flow.transition_routes.trigger_fulfillment.messages`
+  //
+  // If not specified, the agent's default language is used.
+  // [Many
+  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // are supported.
+  // Note: languages must be enabled in the agent before they can be used.
+  string language_code = 2;
+}
+
+// The request message for [Flows.UpdateFlow][google.cloud.dialogflow.cx.v3beta1.Flows.UpdateFlow].
+message UpdateFlowRequest {
+  // Required. The flow to update.
+  Flow flow = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // Required. The mask to control which fields get updated. If `update_mask` is not
+  // specified, an error will be returned.
+  google.protobuf.FieldMask update_mask = 2 [(google.api.field_behavior) = REQUIRED];
+
+  // The language of the following fields in `flow`:
+  //
+  // *  `Flow.event_handlers.trigger_fulfillment.messages`
+  // *  `Flow.transition_routes.trigger_fulfillment.messages`
+  //
+  // If not specified, the agent's default language is used.
+  // [Many
+  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // are supported.
+  // Note: languages must be enabled in the agent before they can be used.
+  string language_code = 3;
+}
+
+// The request message for [Flows.TrainFlow][google.cloud.dialogflow.cx.v3beta1.Flows.TrainFlow].
+message TrainFlowRequest {
+  // Required. The flow to train.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = { type: "dialogflow.googleapis.com/Flow" }
+  ];
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/fulfillment.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/fulfillment.proto
new file mode 100644
index 000000000..7a8e5af3c
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/fulfillment.proto
@@ -0,0 +1,107 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.dialogflow.cx.v3beta1;
+
+import "google/api/resource.proto";
+import "google/cloud/dialogflow/cx/v3beta1/response_message.proto";
+import "google/protobuf/struct.proto";
+import "google/api/annotations.proto";
+
+option cc_enable_arenas = true;
+option csharp_namespace = "Google.Cloud.Dialogflow.Cx.V3Beta1";
+option go_package = "google.golang.org/genproto/googleapis/cloud/dialogflow/cx/v3beta1;cx";
+option java_multiple_files = true;
+option java_outer_classname = "FulfillmentProto";
+option java_package = "com.google.cloud.dialogflow.cx.v3beta1";
+option objc_class_prefix = "DF";
+
+// A fulfillment can do one or more of the following actions at the same time:
+//
+//   * Generate rich message responses.
+//   * Set parameter values.
+//   * Call the webhook.
+//
+// Fulfillments can be called at various stages in the [Page][google.cloud.dialogflow.cx.v3beta1.Page] or
+// [Form][google.cloud.dialogflow.cx.v3beta1.Form] lifecycle. For example, when a [DetectIntentRequest][google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest] drives a
+// session to enter a new page, the page's entry fulfillment can add a static
+// response to the [QueryResult][google.cloud.dialogflow.cx.v3beta1.QueryResult] in the returning [DetectIntentResponse][google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse],
+// call the webhook (for example, to load user data from a database), or both.
+message Fulfillment {
+  // Setting a parameter value.
+  message SetParameterAction {
+    // Display name of the parameter.
+    string parameter = 1;
+
+    // The new value of the parameter. A null value clears the parameter.
+    google.protobuf.Value value = 2;
+  }
+
+  // A list of cascading if-else conditions. Cases are mutually exclusive.
+  // The first one with a matching condition is selected, all the rest ignored.
+  message ConditionalCases {
+    // Each case has a Boolean condition. When it is evaluated to be True, the
+    // corresponding messages will be selected and evaluated recursively.
+    message Case {
+      // The list of messages or conditional cases to activate for this case.
+      message CaseContent {
+        // Either a message is returned or additional cases to be evaluated.
+        oneof cases_or_message {
+          // Returned message.
+          ResponseMessage message = 1;
+
+          // Additional cases to be evaluated.
+          ConditionalCases additional_cases = 2;
+        }
+      }
+
+      // The condition to activate and select this case. Empty means the
+      // condition is always true. The condition is evaluated against [form
+      // parameters][Form.parameters] or [session
+      // parameters][SessionInfo.parameters].
+      //
+      // See the [conditions
+      // reference](https://cloud.google.com/dialogflow/cx/docs/reference/condition).
+      string condition = 1;
+
+      // A list of case content.
+      repeated CaseContent case_content = 2;
+    }
+
+    // A list of cascading if-else conditions.
+    repeated Case cases = 1;
+  }
+
+  // The list of rich message responses to present to the user.
+  repeated ResponseMessage messages = 1;
+
+  // The webhook to call.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/webhooks/<Webhook ID>`.
+  string webhook = 2 [(google.api.resource_reference) = {
+                        type: "dialogflow.googleapis.com/Webhook"
+                      }];
+
+  // The tag used by the webhook to identify which fulfillment is being called.
+  // This field is required if `webhook` is specified.
+  string tag = 3;
+
+  // Set parameter values before executing the webhook.
+  repeated SetParameterAction set_parameter_actions = 4;
+
+  // Conditional cases for this fulfillment.
+  repeated ConditionalCases conditional_cases = 5;
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/gcs.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/gcs.proto
new file mode 100644
index 000000000..c2bb45178
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/gcs.proto
@@ -0,0 +1,28 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.dialogflow.cx.v3beta1;
+
+import "google/api/field_behavior.proto";
+import "google/api/annotations.proto";
+
+option cc_enable_arenas = true;
+option csharp_namespace = "Google.Cloud.Dialogflow.Cx.V3Beta1";
+option go_package = "google.golang.org/genproto/googleapis/cloud/dialogflow/cx/v3beta1;cx";
+option java_multiple_files = true;
+option java_outer_classname = "GcsProto";
+option java_package = "com.google.cloud.dialogflow.cx.v3beta1";
+option objc_class_prefix = "DF";
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/intent.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/intent.proto
new file mode 100644
index 000000000..d93e94489
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/intent.proto
@@ -0,0 +1,337 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.dialogflow.cx.v3beta1;
+
+import "google/api/annotations.proto";
+import "google/api/client.proto";
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
+import "google/protobuf/empty.proto";
+import "google/protobuf/field_mask.proto";
+
+option cc_enable_arenas = true;
+option csharp_namespace = "Google.Cloud.Dialogflow.Cx.V3Beta1";
+option go_package = "google.golang.org/genproto/googleapis/cloud/dialogflow/cx/v3beta1;cx";
+option java_multiple_files = true;
+option java_outer_classname = "IntentProto";
+option java_package = "com.google.cloud.dialogflow.cx.v3beta1";
+option objc_class_prefix = "DF";
+
+// Service for managing [Intents][google.cloud.dialogflow.cx.v3beta1.Intent].
+service Intents {
+  option (google.api.default_host) = "dialogflow.googleapis.com";
+  option (google.api.oauth_scopes) =
+      "https://www.googleapis.com/auth/cloud-platform,"
+      "https://www.googleapis.com/auth/dialogflow";
+
+  // Returns the list of all intents in the specified agent.
+  rpc ListIntents(ListIntentsRequest) returns (ListIntentsResponse) {
+    option (google.api.http) = {
+      get: "/v3beta1/{parent=projects/*/locations/*/agents/*}/intents"
+    };
+    option (google.api.method_signature) = "parent";
+  }
+
+  // Retrieves the specified intent.
+  rpc GetIntent(GetIntentRequest) returns (Intent) {
+    option (google.api.http) = {
+      get: "/v3beta1/{name=projects/*/locations/*/agents/*/intents/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+
+  // Creates an intent in the specified agent.
+  rpc CreateIntent(CreateIntentRequest) returns (Intent) {
+    option (google.api.http) = {
+      post: "/v3beta1/{parent=projects/*/locations/*/agents/*}/intents"
+      body: "intent"
+    };
+    option (google.api.method_signature) = "parent,intent";
+  }
+
+  // Updates the specified intent.
+  rpc UpdateIntent(UpdateIntentRequest) returns (Intent) {
+    option (google.api.http) = {
+      patch: "/v3beta1/{intent.name=projects/*/locations/*/agents/*/intents/*}"
+      body: "intent"
+    };
+    option (google.api.method_signature) = "intent,update_mask";
+  }
+
+  // Deletes the specified intent.
+  rpc DeleteIntent(DeleteIntentRequest) returns (google.protobuf.Empty) {
+    option (google.api.http) = {
+      delete: "/v3beta1/{name=projects/*/locations/*/agents/*/intents/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+}
+
+// An intent represents a user's intent to interact with a conversational agent.
+//
+// You can provide information for the Dialogflow API to use to match user input
+// to an intent by adding training phrases (i.e., examples of user input) to
+// your intent.
+message Intent {
+  option (google.api.resource) = {
+    type: "dialogflow.googleapis.com/Intent"
+    pattern: "projects/{project}/locations/{location}/agents/{agent}/intents/{intent}"
+  };
+
+  // Represents an example that the agent is trained on to identify the intent.
+  message TrainingPhrase {
+    // Represents a part of a training phrase.
+    message Part {
+      // Required. The text for this part.
+      string text = 1 [(google.api.field_behavior) = REQUIRED];
+
+      // The [parameter][google.cloud.dialogflow.cx.v3beta1.Intent.Parameter] used to annotate this part of the
+      // training phrase. This field is required for annotated parts of the
+      // training phrase.
+      string parameter_id = 2;
+    }
+
+    // Output only. The unique identifier of the training phrase.
+    string id = 1;
+
+    // Required. The ordered list of training phrase parts.
+    // The parts are concatenated in order to form the training phrase.
+    //
+    // Note: The API does not automatically annotate training phrases like the
+    // Dialogflow Console does.
+    //
+    // Note: Do not forget to include whitespace at part boundaries, so the
+    // training phrase is well formatted when the parts are concatenated.
+    //
+    // If the training phrase does not need to be annotated with parameters,
+    // you just need a single part with only the [Part.text][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part.text] field set.
+    //
+    // If you want to annotate the training phrase, you must create multiple
+    // parts, where the fields of each part are populated in one of two ways:
+    //
+    // -   `Part.text` is set to a part of the phrase that has no parameters.
+    // -   `Part.text` is set to a part of the phrase that you want to annotate,
+    //     and the `parameter_id` field is set.
+    repeated Part parts = 2 [(google.api.field_behavior) = REQUIRED];
+
+    // Indicates how many times this example was added to the intent.
+    int32 repeat_count = 3;
+  }
+
+  // Represents an intent parameter.
+  message Parameter {
+    // Required. The unique identifier of the parameter. This field
+    // is used by [training phrases][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase] to annotate their
+    // [parts][google.cloud.dialogflow.cx.v3beta1.Intent.TrainingPhrase.Part].
+    string id = 1 [(google.api.field_behavior) = REQUIRED];
+
+    // Required. The entity type of the parameter.
+    // Format: `projects/-/locations/-/agents/-/entityTypes/<System Entity Type
+    // ID>` for system entity types (for example,
+    // `projects/-/locations/-/agents/-/entityTypes/sys.date`), or
+    // `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+    // ID>/entityTypes/<Entity Type ID>` for developer entity types.
+    string entity_type = 2 [
+      (google.api.field_behavior) = REQUIRED,
+      (google.api.resource_reference) = {
+        type: "dialogflow.googleapis.com/EntityType"
+      }
+    ];
+
+    // Indicates whether the parameter represents a list of values.
+    bool is_list = 3;
+  }
+
+  // The unique identifier of the intent.
+  // Required for the [Intents.UpdateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.UpdateIntent] method. [Intents.CreateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.CreateIntent]
+  // populates the name automatically.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/intents/<Intent ID>`.
+  string name = 1;
+
+  // Required. The human-readable name of the intent, unique within the agent.
+  string display_name = 2 [(google.api.field_behavior) = REQUIRED];
+
+  // The collection of training phrases the agent is trained on to identify the
+  // intent.
+  repeated TrainingPhrase training_phrases = 3;
+
+  // The collection of parameters associated with the intent.
+  repeated Parameter parameters = 4;
+
+  // The priority of this intent. Higher numbers represent higher
+  // priorities.
+  //
+  // - If the supplied value is unspecified or 0, the service
+  //   translates the value to 500,000, which corresponds to the
+  //   `Normal` priority in the console.
+  // - If the supplied value is negative, the intent is ignored
+  //   in runtime detect intent requests.
+  int32 priority = 5;
+
+  // Indicates whether this is a fallback intent. Currently only default
+  // fallback intent is allowed in the agent, which is added upon agent
+  // creation.
+  // Adding training phrases to fallback intent is useful in the case of
+  // requests that are mistakenly matched, since training phrases assigned to
+  // fallback intents act as negative examples that triggers no-match event.
+  bool is_fallback = 6;
+}
+
+// The request message for [Intents.ListIntents][google.cloud.dialogflow.cx.v3beta1.Intents.ListIntents].
+message ListIntentsRequest {
+  // Required. The agent to list all intents for.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent ID>`.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/Intent"
+    }
+  ];
+
+  // The language to list intents for. The following fields are language
+  // dependent:
+  //
+  // *   `Intent.training_phrases.parts.text`
+  //
+  // If not specified, the agent's default language is used.
+  // [Many
+  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // are supported.
+  // Note: languages must be enabled in the agent before they can be used.
+  string language_code = 2;
+
+  // The resource view to apply to the returned intent.
+  IntentView intent_view = 5;
+
+  // The maximum number of items to return in a single page. By default 100 and
+  // at most 1000.
+  int32 page_size = 3;
+
+  // The next_page_token value returned from a previous list request.
+  string page_token = 4;
+}
+
+// The response message for [Intents.ListIntents][google.cloud.dialogflow.cx.v3beta1.Intents.ListIntents].
+message ListIntentsResponse {
+  // The list of intents. There will be a maximum number of items returned based
+  // on the page_size field in the request.
+  repeated Intent intents = 1;
+
+  // Token to retrieve the next page of results, or empty if there are no more
+  // results in the list.
+  string next_page_token = 2;
+}
+
+// The request message for [Intents.GetIntent][google.cloud.dialogflow.cx.v3beta1.Intents.GetIntent].
+message GetIntentRequest {
+  // Required. The name of the intent.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/intents/<Intent ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Intent"
+    }
+  ];
+
+  // The language to retrieve the intent for. The following fields are language
+  // dependent:
+  //
+  // *   `Intent.training_phrases.parts.text`
+  //
+  // If not specified, the agent's default language is used.
+  // [Many
+  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // are supported.
+  // Note: languages must be enabled in the agent before they can be used.
+  string language_code = 2;
+}
+
+// The request message for [Intents.CreateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.CreateIntent].
+message CreateIntentRequest {
+  // Required. The agent to create an intent for.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent ID>`.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/Intent"
+    }
+  ];
+
+  // Required. The intent to create.
+  Intent intent = 2 [(google.api.field_behavior) = REQUIRED];
+
+  // The language of the following fields in `intent`:
+  //
+  // *   `Intent.training_phrases.parts.text`
+  //
+  // If not specified, the agent's default language is used.
+  // [Many
+  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // are supported.
+  // Note: languages must be enabled in the agent before they can be used.
+  string language_code = 3;
+}
+
+// The request message for [Intents.UpdateIntent][google.cloud.dialogflow.cx.v3beta1.Intents.UpdateIntent].
+message UpdateIntentRequest {
+  // Required. The intent to update.
+  Intent intent = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // The language of the following fields in `intent`:
+  //
+  // *   `Intent.training_phrases.parts.text`
+  //
+  // If not specified, the agent's default language is used.
+  // [Many
+  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // are supported.
+  // Note: languages must be enabled in the agent before they can be used.
+  string language_code = 2;
+
+  // The mask to control which fields get updated. If the mask is not present,
+  // all fields will be updated.
+  google.protobuf.FieldMask update_mask = 3;
+}
+
+// The request message for [Intents.DeleteIntent][google.cloud.dialogflow.cx.v3beta1.Intents.DeleteIntent].
+message DeleteIntentRequest {
+  // Required. The name of the intent to delete.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/intents/<Intent ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Intent"
+    }
+  ];
+}
+
+// Represents the options for views of an intent.
+// An intent can be a sizable object. Therefore, we provide a resource view that
+// does not return training phrases in the response.
+enum IntentView {
+  // Not specified. Treated as INTENT_VIEW_FULL.
+  INTENT_VIEW_UNSPECIFIED = 0;
+
+  // Training phrases field is not populated in the response.
+  INTENT_VIEW_PARTIAL = 1;
+
+  // All fields are populated.
+  INTENT_VIEW_FULL = 2;
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/ivr.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/ivr.proto
new file mode 100644
index 000000000..86a97737b
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/ivr.proto
@@ -0,0 +1,28 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.dialogflow.cx.v3beta1;
+
+import "google/protobuf/duration.proto";
+import "google/api/annotations.proto";
+
+option cc_enable_arenas = true;
+option csharp_namespace = "Google.Cloud.Dialogflow.Cx.V3Beta1";
+option go_package = "google.golang.org/genproto/googleapis/cloud/dialogflow/cx/v3beta1;cx";
+option java_multiple_files = true;
+option java_outer_classname = "InteractiveVoiceResponseProto";
+option java_package = "com.google.cloud.dialogflow.cx.v3beta1";
+option objc_class_prefix = "DF";
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/page.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/page.proto
new file mode 100644
index 000000000..c63b16178
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/page.proto
@@ -0,0 +1,506 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.dialogflow.cx.v3beta1;
+
+import "google/api/annotations.proto";
+import "google/api/client.proto";
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
+import "google/cloud/dialogflow/cx/v3beta1/fulfillment.proto";
+import "google/protobuf/empty.proto";
+import "google/protobuf/field_mask.proto";
+import "google/protobuf/struct.proto";
+
+option cc_enable_arenas = true;
+option csharp_namespace = "Google.Cloud.Dialogflow.Cx.V3Beta1";
+option go_package = "google.golang.org/genproto/googleapis/cloud/dialogflow/cx/v3beta1;cx";
+option java_multiple_files = true;
+option java_outer_classname = "PageProto";
+option java_package = "com.google.cloud.dialogflow.cx.v3beta1";
+option objc_class_prefix = "DF";
+
+// Service for managing [Pages][google.cloud.dialogflow.cx.v3beta1.Page].
+service Pages {
+  option (google.api.default_host) = "dialogflow.googleapis.com";
+  option (google.api.oauth_scopes) =
+      "https://www.googleapis.com/auth/cloud-platform,"
+      "https://www.googleapis.com/auth/dialogflow";
+
+  // Returns the list of all pages in the specified flow.
+  rpc ListPages(ListPagesRequest) returns (ListPagesResponse) {
+    option (google.api.http) = {
+      get: "/v3beta1/{parent=projects/*/locations/*/agents/*/flows/*}/pages"
+    };
+    option (google.api.method_signature) = "parent";
+  }
+
+  // Retrieves the specified page.
+  rpc GetPage(GetPageRequest) returns (Page) {
+    option (google.api.http) = {
+      get: "/v3beta1/{name=projects/*/locations/*/agents/*/flows/*/pages/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+
+  // Creates a page in the specified flow.
+  rpc CreatePage(CreatePageRequest) returns (Page) {
+    option (google.api.http) = {
+      post: "/v3beta1/{parent=projects/*/locations/*/agents/*/flows/*}/pages"
+      body: "page"
+    };
+    option (google.api.method_signature) = "parent,page";
+  }
+
+  // Updates the specified page.
+  rpc UpdatePage(UpdatePageRequest) returns (Page) {
+    option (google.api.http) = {
+      patch: "/v3beta1/{page.name=projects/*/locations/*/agents/*/flows/*/pages/*}"
+      body: "page"
+    };
+    option (google.api.method_signature) = "page,update_mask";
+  }
+
+  // Deletes the specified page.
+  rpc DeletePage(DeletePageRequest) returns (google.protobuf.Empty) {
+    option (google.api.http) = {
+      delete: "/v3beta1/{name=projects/*/locations/*/agents/*/flows/*/pages/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+}
+
+// A Dialogflow CX conversation (session) can be described and visualized as a
+// state machine. The states of a CX session are represented by pages.
+//
+// For each flow, you define many pages, where your combined pages can handle a
+// complete conversation on the topics the flow is designed for. At any given
+// moment, exactly one page is the current page, the current page is considered
+// active, and the flow associated with that page is considered active. Every
+// flow has a special start page. When a flow initially becomes active, the
+// start page page becomes the current page. For each conversational turn, the
+// current page will either stay the same or transition to another page.
+//
+// You configure each page to collect information from the end-user that is
+// relevant for the conversational state represented by the page.
+//
+// For more information, see the
+// [Page guide](https://cloud.google.com/dialogflow/cx/docs/concept/page).
+message Page {
+  option (google.api.resource) = {
+    type: "dialogflow.googleapis.com/Page"
+    pattern: "projects/{project}/locations/{location}/agents/{agent}/flows/{flow}/pages/{page}"
+  };
+
+  // The unique identifier of the page.
+  // Required for the [Pages.UpdatePage][google.cloud.dialogflow.cx.v3beta1.Pages.UpdatePage] method. [Pages.CreatePage][google.cloud.dialogflow.cx.v3beta1.Pages.CreatePage]
+  // populates the name automatically.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>/pages/<Page ID>`.
+  string name = 1;
+
+  // Required. The human-readable name of the page, unique within the agent.
+  string display_name = 2 [(google.api.field_behavior) = REQUIRED];
+
+  // The fulfillment to call when the session is entering the page.
+  Fulfillment entry_fulfillment = 7;
+
+  // The form associated with the page, used for collecting parameters
+  // relevant to the page.
+  Form form = 4;
+
+  // Ordered list of [`TransitionRouteGroups`][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] associated
+  // with the page. Transition route groups must be unique within a page.
+  //
+  // *   If multiple transition routes within a page scope refer to the same
+  //     intent, then the precedence order is: page's transition route -> page's
+  //     transition route group -> flow's transition routes.
+  //
+  // *   If multiple transition route groups within a page contain the same
+  //     intent, then the first group in the ordered list takes precedence.
+  //
+  // Format:`projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>/transitionRouteGroups/<TransitionRouteGroup ID>`.
+  repeated string transition_route_groups = 11 [(google.api.resource_reference) = {
+                                                  type: "dialogflow.googleapis.com/TransitionRouteGroup"
+                                                }];
+
+  // A list of transitions for the transition rules of this page.
+  // They route the conversation to another page in the same flow, or another
+  // flow.
+  //
+  // When we are in a certain page, the TransitionRoutes are evalauted in the
+  // following order:
+  //
+  // *   TransitionRoutes defined in the page with intent specified.
+  // *   TransitionRoutes defined in the
+  // [transition route groups][google.cloud.dialogflow.cx.v3beta1.Page.transition_route_groups].
+  // *   TransitionRoutes defined in flow with intent specified.
+  // *   TransitionRoutes defined in the page with only condition specified.
+  repeated TransitionRoute transition_routes = 9;
+
+  // Handlers associated with the page to handle events such as webhook errors,
+  // no match or no input.
+  repeated EventHandler event_handlers = 10;
+}
+
+// A form is a data model that groups related parameters that can be collected
+// from the user. The process in which the agent prompts the user and collects
+// parameter values from the user is called form filling. A form can be added to
+// a [page][google.cloud.dialogflow.cx.v3beta1.Page]. When form filling is done, the filled parameters will be
+// written to the [session][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+message Form {
+  // Represents a form parameter.
+  message Parameter {
+    // Configuration for how the filling of a parameter should be handled.
+    message FillBehavior {
+      // Required. The fulfillment to provide the initial prompt that the agent
+      // can present to the user in order to fill the parameter.
+      Fulfillment initial_prompt_fulfillment = 3 [(google.api.field_behavior) = REQUIRED];
+
+      // The handlers for parameter-level events, used to provide reprompt for
+      // the parameter or transition to a different page/flow. The supported
+      // events are:
+      // *   `sys.no-match-<N>`, where N can be from 1 to 6
+      // *   `sys.no-match-default`
+      // *   `sys.no-input-<N>`, where N can be from 1 to 6
+      // *   `sys.no-input-default`
+      // *   `sys.invalid-parameter`
+      //
+      // `initial_prompt_fulfillment` provides the first prompt for the
+      // parameter.
+      //
+      // If the user's response does not fill the parameter, a
+      // no-match/no-input event will be triggered, and the fulfillment
+      // associated with the `sys.no-match-1`/`sys.no-input-1` handler (if
+      // defined) will be called to provide a prompt. The
+      // `sys.no-match-2`/`sys.no-input-2` handler (if defined) will respond to
+      // the next no-match/no-input event, and so on.
+      //
+      // A `sys.no-match-default` or `sys.no-input-default` handler will be used
+      // to handle all following no-match/no-input events after all numbered
+      // no-match/no-input handlers for the parameter are consumed.
+      //
+      // A `sys.invalid-parameter` handler can be defined to handle the case
+      // where the parameter values have been `invalidated` by webhook. For
+      // example, if the user's response fill the parameter, however the
+      // parameter was invalidated by webhook, the fulfillment associated with
+      // the `sys.invalid-parameter` handler (if defined) will be called to
+      // provide a prompt.
+      //
+      // If the event handler for the corresponding event can't be found on the
+      // parameter, `initial_prompt_fulfillment` will be re-prompted.
+      repeated EventHandler reprompt_event_handlers = 5;
+    }
+
+    // Required. The human-readable name of the parameter, unique within the
+    // form.
+    string display_name = 1 [(google.api.field_behavior) = REQUIRED];
+
+    // Indicates whether the parameter is required. Optional parameters will not
+    // trigger prompts; however, they are filled if the user specifies them.
+    // Required parameters must be filled before form filling concludes.
+    bool required = 2;
+
+    // Required. The entity type of the parameter.
+    // Format: `projects/-/locations/-/agents/-/entityTypes/<System Entity Type
+    // ID>` for system entity types (for example,
+    // `projects/-/locations/-/agents/-/entityTypes/sys.date`), or
+    // `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+    // ID>/entityTypes/<Entity Type ID>` for developer entity types.
+    string entity_type = 3 [
+      (google.api.field_behavior) = REQUIRED,
+      (google.api.resource_reference) = {
+        type: "dialogflow.googleapis.com/EntityType"
+      }
+    ];
+
+    // Indicates whether the parameter represents a list of values.
+    bool is_list = 4;
+
+    // Required. Defines fill behavior for the parameter.
+    FillBehavior fill_behavior = 7 [(google.api.field_behavior) = REQUIRED];
+
+    // The default value of an optional parameter. If the parameter is required,
+    // the default value will be ignored.
+    google.protobuf.Value default_value = 9;
+  }
+
+  // Parameters to collect from the user.
+  repeated Parameter parameters = 1;
+}
+
+// An event handler specifies an [event][google.cloud.dialogflow.cx.v3beta1.EventHandler.event] that can be handled
+// during a session. When the specified event happens, the following actions are
+// taken in order:
+//
+// *   If there is a
+// [`trigger_fulfillment`][google.cloud.dialogflow.cx.v3beta1.EventHandler.trigger_fulfillment] associated with
+// the event, it will be called.
+// *   If there is a [`target_page`][google.cloud.dialogflow.cx.v3beta1.EventHandler.target_page] associated
+// with the event, the session will transition into the specified page.
+// *   If there is a [`target_flow`][google.cloud.dialogflow.cx.v3beta1.EventHandler.target_flow] associated
+// with the event, the session will transition into the specified flow.
+message EventHandler {
+  // Output only. The unique identifier of this event handler.
+  string name = 6 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // Required. The name of the event to handle.
+  string event = 4 [(google.api.field_behavior) = REQUIRED];
+
+  // The fulfillment to call when the event occurs.
+  // Handling webhook errors with a fulfillment enabled with webhook could
+  // cause infinite loop. It is invalid to specify such fulfillment for a
+  // handler handling webhooks.
+  Fulfillment trigger_fulfillment = 5;
+
+  // The target to transition to, either a page in the same host flow (the flow
+  // that owns this [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute]), or another flow in the same agent.
+  oneof target {
+    // The target page to transition to.
+    // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+    // ID>/flows/<Flow ID>/pages/<Page ID>`.
+    string target_page = 2 [(google.api.resource_reference) = {
+                              type: "dialogflow.googleapis.com/Page"
+                            }];
+
+    // The target flow to transition to.
+    // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+    // ID>/flows/<Flow ID>`.
+    string target_flow = 3 [(google.api.resource_reference) = {
+                              type: "dialogflow.googleapis.com/Flow"
+                            }];
+  }
+}
+
+// A transition route specifies a [intent][google.cloud.dialogflow.cx.v3beta1.Intent] that can be matched and/or a
+// data condition that can be evaluated during a session. When a specified
+// transition is matched, the following actions are taken in order:
+//
+// *   If there is a
+// [`trigger_fulfillment`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.trigger_fulfillment] associated with
+// the transition, it will be called.
+// *   If there is a [`target_page`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.target_page] associated
+// with the transition, the session will transition into the specified page.
+// *   If there is a [`target_flow`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.target_flow] associated
+// with the transition, the session will transition into the specified flow.
+message TransitionRoute {
+  // Output only. The unique identifier of this transition route.
+  string name = 6 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // The unique identifier of an [Intent][google.cloud.dialogflow.cx.v3beta1.Intent].
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/intents/<Intent ID>`.
+  // Indicates that the transition can only happen when the given intent is
+  // matched.
+  // At least one of `intent` or `condition` must be specified. When both
+  // `intent` and `condition` are specified, the transition can only happen
+  // when both are fulfilled.
+  string intent = 1 [(google.api.resource_reference) = {
+                       type: "dialogflow.googleapis.com/Intent"
+                     }];
+
+  // The condition to evaluate against [form parameters][google.cloud.dialogflow.cx.v3beta1.Form.parameters] or
+  // [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+  //
+  // See the [conditions
+  // reference](https://cloud.google.com/dialogflow/cx/docs/reference/condition).
+  // At least one of `intent` or `condition` must be specified. When both
+  // `intent` and `condition` are specified, the transition can only happen
+  // when both are fulfilled.
+  string condition = 2;
+
+  // The fulfillment to call when the condition is satisfied. At least one of
+  // `trigger_fulfillment` and `target` must be specified. When both are
+  // defined, `trigger_fulfillment` is executed first.
+  Fulfillment trigger_fulfillment = 3;
+
+  // The target to transition to, either a page in the same host flow (the flow
+  // that owns this [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute]), or another flow in the same agent.
+  oneof target {
+    // The target page to transition to.
+    // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+    // ID>/flows/<Flow ID>/pages/<Page ID>`.
+    string target_page = 4 [(google.api.resource_reference) = {
+                              type: "dialogflow.googleapis.com/Page"
+                            }];
+
+    // The target flow to transition to.
+    // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+    // ID>/flows/<Flow ID>`.
+    string target_flow = 5 [(google.api.resource_reference) = {
+                              type: "dialogflow.googleapis.com/Flow"
+                            }];
+  }
+}
+
+// The request message for [Pages.ListPages][google.cloud.dialogflow.cx.v3beta1.Pages.ListPages].
+message ListPagesRequest {
+  // Required. The flow to list all pages for.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>`.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/Page"
+    }
+  ];
+
+  // The language to list pages for. The following fields are language
+  // dependent:
+  //
+  // *  `Page.entry_fulfillment.messages`
+  // *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+  // *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+  // *  `Page.transition_route.trigger_fulfillment.messages`
+  // *
+  // `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+  //
+  // If not specified, the agent's default language is used.
+  // [Many
+  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // are supported.
+  // Note: languages must be enabled in the agent before they can be used.
+  string language_code = 2;
+
+  // The maximum number of items to return in a single page. By default 100 and
+  // at most 1000.
+  int32 page_size = 3;
+
+  // The next_page_token value returned from a previous list request.
+  string page_token = 4;
+}
+
+// The response message for [Pages.ListPages][google.cloud.dialogflow.cx.v3beta1.Pages.ListPages].
+message ListPagesResponse {
+  // The list of pages. There will be a maximum number of items returned based
+  // on the page_size field in the request.
+  repeated Page pages = 1;
+
+  // Token to retrieve the next page of results, or empty if there are no more
+  // results in the list.
+  string next_page_token = 2;
+}
+
+// The request message for [Pages.GetPage][google.cloud.dialogflow.cx.v3beta1.Pages.GetPage].
+message GetPageRequest {
+  // Required. The name of the page.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>/pages/<Page ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Page"
+    }
+  ];
+
+  // The language to retrieve the page for. The following fields are language
+  // dependent:
+  //
+  // *  `Page.entry_fulfillment.messages`
+  // *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+  // *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+  // *  `Page.transition_route.trigger_fulfillment.messages`
+  // *
+  // `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+  //
+  // If not specified, the agent's default language is used.
+  // [Many
+  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // are supported.
+  // Note: languages must be enabled in the agent before they can be used.
+  string language_code = 2;
+}
+
+// The request message for [Pages.CreatePage][google.cloud.dialogflow.cx.v3beta1.Pages.CreatePage].
+message CreatePageRequest {
+  // Required. The flow to create a page for.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>`.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/Page"
+    }
+  ];
+
+  // Required. The page to create.
+  Page page = 2 [(google.api.field_behavior) = REQUIRED];
+
+  // The language of the following fields in `page`:
+  //
+  // *  `Page.entry_fulfillment.messages`
+  // *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+  // *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+  // *  `Page.transition_route.trigger_fulfillment.messages`
+  // *
+  // `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+  //
+  // If not specified, the agent's default language is used.
+  // [Many
+  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // are supported.
+  // Note: languages must be enabled in the agent before they can be used.
+  string language_code = 3;
+}
+
+// The request message for [Pages.UpdatePage][google.cloud.dialogflow.cx.v3beta1.Pages.UpdatePage].
+message UpdatePageRequest {
+  // Required. The page to update.
+  Page page = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // The language of the following fields in `page`:
+  //
+  // *  `Page.entry_fulfillment.messages`
+  // *  `Page.form.parameters.fill_behavior.initial_prompt_fulfillment.messages`
+  // *  `Page.form.parameters.fill_behavior.reprompt_event_handlers.messages`
+  // *  `Page.transition_route.trigger_fulfillment.messages`
+  // *
+  // `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
+  //
+  // If not specified, the agent's default language is used.
+  // [Many
+  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // are supported.
+  // Note: languages must be enabled in the agent before they can be used.
+  string language_code = 2;
+
+  // The mask to control which fields get updated. If the mask is not present,
+  // all fields will be updated.
+  google.protobuf.FieldMask update_mask = 3;
+}
+
+// The request message for [Pages.DeletePage][google.cloud.dialogflow.cx.v3beta1.Pages.DeletePage].
+message DeletePageRequest {
+  // Required. The name of the page to delete.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/Flows/<flow ID>/pages/<Page ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Page"
+    }
+  ];
+
+  // This field has no effect for pages with no incoming transitions.
+  // For pages with incoming transitions:
+  //
+  // *  If `force` is set to false, an error will be returned with message
+  //    indicating the incoming transitions.
+  // *  If `force` is set to true, Dialogflow will remove the page, as well as
+  //    any transitions to the page.
+  bool force = 2;
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/response_message.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/response_message.proto
new file mode 100644
index 000000000..2822d612e
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/response_message.proto
@@ -0,0 +1,223 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.dialogflow.cx.v3beta1;
+
+import "google/api/field_behavior.proto";
+import "google/protobuf/struct.proto";
+import "google/api/annotations.proto";
+
+option cc_enable_arenas = true;
+option csharp_namespace = "Google.Cloud.Dialogflow.Cx.V3Beta1";
+option go_package = "google.golang.org/genproto/googleapis/cloud/dialogflow/cx/v3beta1;cx";
+option java_multiple_files = true;
+option java_outer_classname = "ResponseMessageProto";
+option java_package = "com.google.cloud.dialogflow.cx.v3beta1";
+option objc_class_prefix = "DF";
+
+// Represents a response message that can be returned by a conversational agent.
+//
+// Response messages are also used for output audio synthesis. The approach is
+// as follows:
+//
+// * If at least one OutputAudioText response is present, then all
+//   OutputAudioText responses are linearly concatenated, and the result is used
+//   for output audio synthesis.
+// * If the OutputAudioText responses are a mixture of text and SSML, then the
+//   concatenated result is treated as SSML; otherwise, the result is treated as
+//   either text or SSML as appropriate. The agent designer should ideally use
+//   either text or SSML consistently throughout the bot design.
+// * Otherwise, all Text responses are linearly concatenated, and the result is
+//   used for output audio synthesis.
+//
+// This approach allows for more sophisticated user experience scenarios, where
+// the text displayed to the user may differ from what is heard.
+message ResponseMessage {
+  // The text response message.
+  message Text {
+    // Required. A collection of text responses.
+    repeated string text = 1 [(google.api.field_behavior) = REQUIRED];
+
+    // Whether the playback of this message can be interrupted by the end
+    // user's speech and the client can then starts the next Dialogflow
+    // request.
+    bool allow_playback_interruption = 2;
+  }
+
+  // Indicates that the conversation should be handed off to a human agent.
+  //
+  // Dialogflow only uses this to determine which conversations were handed off
+  // to a human agent for measurement purposes. What else to do with this signal
+  // is up to you and your handoff procedures.
+  //
+  // You may set this, for example:
+  // * In the [entry_fulfillment][google.cloud.dialogflow.cx.v3beta1.Page.entry_fulfillment] of a [Page][google.cloud.dialogflow.cx.v3beta1.Page] if
+  //   entering the page indicates something went extremely wrong in the
+  //   conversation.
+  // * In a webhook response when you determine that the customer issue can only
+  //   be handled by a human.
+  message HumanAgentHandoff {
+    option deprecated = true;
+
+    // Custom metadata for your handoff procedure. Dialogflow doesn't impose
+    // any structure on this.
+    google.protobuf.Struct metadata = 1;
+  }
+
+  // Indicates that the conversation should be handed off to a live agent.
+  //
+  // Dialogflow only uses this to determine which conversations were handed off
+  // to a human agent for measurement purposes. What else to do with this signal
+  // is up to you and your handoff procedures.
+  //
+  // You may set this, for example:
+  // * In the [entry_fulfillment][google.cloud.dialogflow.cx.v3beta1.Page.entry_fulfillment] of a [Page][google.cloud.dialogflow.cx.v3beta1.Page] if
+  //   entering the page indicates something went extremely wrong in the
+  //   conversation.
+  // * In a webhook response when you determine that the customer issue can only
+  //   be handled by a human.
+  message LiveAgentHandoff {
+    // Custom metadata for your handoff procedure. Dialogflow doesn't impose
+    // any structure on this.
+    google.protobuf.Struct metadata = 1;
+  }
+
+  // Indicates that the conversation succeeded, i.e., the bot handled the issue
+  // that the customer talked to it about.
+  //
+  // Dialogflow only uses this to determine which conversations should be
+  // counted as successful and doesn't process the metadata in this message in
+  // any way. Note that Dialogflow also considers conversations that get to the
+  // conversation end page as successful even if they don't return
+  // [ConversationSuccess][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.ConversationSuccess].
+  //
+  // You may set this, for example:
+  // * In the [entry_fulfillment][google.cloud.dialogflow.cx.v3beta1.Page.entry_fulfillment] of a [Page][google.cloud.dialogflow.cx.v3beta1.Page] if
+  //   entering the page indicates that the conversation succeeded.
+  // * In a webhook response when you determine that you handled the customer
+  //   issue.
+  message ConversationSuccess {
+    // Custom metadata. Dialogflow doesn't impose any structure on this.
+    google.protobuf.Struct metadata = 1;
+  }
+
+  // Specifies an audio clip to be played by the client as part of the response.
+  message PlayAudio {
+    // Required. URI of the audio clip. Dialogflow does not impose any validation on this
+    // value. It is specific to the client that reads it.
+    string audio_uri = 1 [(google.api.field_behavior) = REQUIRED];
+
+    // Whether the playback of this message can be interrupted by the end
+    // user's speech and the client can then starts the next Dialogflow
+    // request.
+    bool allow_playback_interruption = 2;
+  }
+
+  // A text or ssml response that is preferentially used for TTS output audio
+  // synthesis, as described in the comment on the ResponseMessage message.
+  message OutputAudioText {
+    // The source, which is either plain text or SSML.
+    oneof source {
+      // The raw text to be synthesized.
+      string text = 1;
+
+      // The SSML text to be synthesized. For more information, see
+      // [SSML](/speech/text-to-speech/docs/ssml).
+      string ssml = 2;
+    }
+  }
+
+  // Indicates that interaction with the Dialogflow agent has ended.
+  // This message is generated by Dialogflow only and not supposed to be
+  // defined by the user.
+  message EndInteraction {
+
+  }
+
+  // Represents an audio message that is composed of both segments
+  // synthesized from the Dialogflow agent prompts and ones hosted externally
+  // at the specified URIs.
+  // The external URIs are specified via
+  // [play_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.play_audio].
+  // This message is generated by Dialogflow only and not supposed to be
+  // defined by the user.
+  message MixedAudio {
+    // Represents one segment of audio.
+    message Segment {
+      // Content of the segment.
+      oneof content {
+        // Raw audio synthesized from the Dialogflow agent's response using
+        // the output config specified in the request.
+        bytes audio = 1;
+
+        // Client-specific URI that points to an audio clip accessible to the
+        // client. Dialogflow does not impose any validation on it.
+        string uri = 2;
+      }
+
+      // Whether the playback of this segment can be interrupted by the end
+      // user's speech and the client should then start the next Dialogflow
+      // request.
+      bool allow_playback_interruption = 3;
+    }
+
+    // Segments this audio response is composed of.
+    repeated Segment segments = 1;
+  }
+
+  // Required. The rich response message.
+  oneof message {
+    // Returns a text response.
+    Text text = 1;
+
+    // Returns a response containing a custom, platform-specific payload.
+    google.protobuf.Struct payload = 2;
+
+    // Hands off conversation to a human agent.
+    HumanAgentHandoff human_agent_handoff = 6 [deprecated = true];
+
+    // Indicates that the conversation succeeded.
+    ConversationSuccess conversation_success = 9;
+
+    // A text or ssml response that is preferentially used for TTS output audio
+    // synthesis, as described in the comment on the ResponseMessage message.
+    OutputAudioText output_audio_text = 8;
+
+    // Hands off conversation to a human agent.
+    LiveAgentHandoff live_agent_handoff = 10;
+
+    // Output only. A signal that indicates the interaction with the Dialogflow agent has
+    // ended.
+    // This message is generated by Dialogflow only when the conversation
+    // reaches `END_SESSION` or `END_PAGE` page. It is not supposed to be
+    // defined by the user.
+    // It's guaranteed that there is at most one such message in each response.
+    EndInteraction end_interaction = 11 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+    // Signal that the client should play an audio clip hosted at a
+    // client-specific URI. Dialogflow uses this to construct
+    // [mixed_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.mixed_audio]. However, Dialogflow itself
+    // does not try to read or process the URI in any way.
+    PlayAudio play_audio = 12;
+
+    // Output only. An audio response message composed of both the synthesized Dialogflow
+    // agent responses and responses defined via
+    // [play_audio][google.cloud.dialogflow.cx.v3beta1.ResponseMessage.play_audio].
+    // This message is generated by Dialogflow only and not supposed to be
+    // defined by the user.
+    MixedAudio mixed_audio = 13 [(google.api.field_behavior) = OUTPUT_ONLY];
+  }
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/session.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/session.proto
new file mode 100644
index 000000000..5853a8cc3
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/session.proto
@@ -0,0 +1,645 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.dialogflow.cx.v3beta1;
+
+import "google/api/annotations.proto";
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
+import "google/cloud/dialogflow/cx/v3beta1/audio_config.proto";
+import "google/cloud/dialogflow/cx/v3beta1/intent.proto";
+import "google/cloud/dialogflow/cx/v3beta1/page.proto";
+import "google/cloud/dialogflow/cx/v3beta1/response_message.proto";
+import "google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto";
+import "google/protobuf/duration.proto";
+import "google/protobuf/struct.proto";
+import "google/rpc/status.proto";
+import "google/type/latlng.proto";
+import "google/api/client.proto";
+
+option cc_enable_arenas = true;
+option csharp_namespace = "Google.Cloud.Dialogflow.Cx.V3Beta1";
+option go_package = "google.golang.org/genproto/googleapis/cloud/dialogflow/cx/v3beta1;cx";
+option java_multiple_files = true;
+option java_outer_classname = "SessionProto";
+option java_package = "com.google.cloud.dialogflow.cx.v3beta1";
+option objc_class_prefix = "DF";
+option (google.api.resource_definition) = {
+  type: "dialogflow.googleapis.com/Session"
+  pattern: "projects/{project}/locations/{location}/agents/{agent}/sessions/{session}"
+  pattern: "projects/{project}/locations/{location}/agents/{agent}/environments/{environment}/sessions/{session}"
+};
+
+// A session represents an interaction with a user. You retrieve user input
+// and pass it to the [DetectIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.DetectIntent] method to determine
+// user intent and respond.
+service Sessions {
+  option (google.api.default_host) = "dialogflow.googleapis.com";
+  option (google.api.oauth_scopes) =
+      "https://www.googleapis.com/auth/cloud-platform,"
+      "https://www.googleapis.com/auth/dialogflow";
+
+  // Processes a natural language query and returns structured, actionable data
+  // as a result. This method is not idempotent, because it may cause session
+  // entity types to be updated, which in turn might affect results of future
+  // queries.
+  rpc DetectIntent(DetectIntentRequest) returns (DetectIntentResponse) {
+    option (google.api.http) = {
+      post: "/v3beta1/{session=projects/*/locations/*/agents/*/sessions/*}:detectIntent"
+      body: "*"
+    };
+  }
+
+  // Processes a natural language query in audio format in a streaming fashion
+  // and returns structured, actionable data as a result. This method is only
+  // available via the gRPC API (not REST).
+  rpc StreamingDetectIntent(stream StreamingDetectIntentRequest) returns (stream StreamingDetectIntentResponse) {
+  }
+
+  // Returns preliminary intent match results, doesn't change the session
+  // status.
+  rpc MatchIntent(MatchIntentRequest) returns (MatchIntentResponse) {
+    option (google.api.http) = {
+      post: "/v3beta1/{session=projects/*/locations/*/agents/*/sessions/*}:matchIntent"
+      body: "*"
+    };
+  }
+
+  // Fulfills a matched intent returned by [MatchIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.MatchIntent].
+  // Must be called after [MatchIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.MatchIntent], with input from
+  // [MatchIntentResponse][google.cloud.dialogflow.cx.v3beta1.MatchIntentResponse]. Otherwise, the behavior is undefined.
+  rpc FulfillIntent(FulfillIntentRequest) returns (FulfillIntentResponse) {
+    option (google.api.http) = {
+      post: "/v3beta1/{match_intent_request.session=projects/*/locations/*/agents/*/sessions/*}:fulfillIntent"
+      body: "*"
+    };
+  }
+}
+
+// The request to detect user's intent.
+message DetectIntentRequest {
+  // Required. The name of the session this query is sent to.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/sessions/<Session ID>`.
+  // It's up to the API caller to choose an appropriate `Session ID`. It can be
+  // a random number or some type of session identifiers (preferably hashed).
+  // The length of the `Session ID` must not exceed 36 characters.
+  string session = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Session"
+    }
+  ];
+
+  // The parameters of this query.
+  QueryParameters query_params = 2;
+
+  // Required. The input specification.
+  QueryInput query_input = 3 [(google.api.field_behavior) = REQUIRED];
+
+  // Instructs the speech synthesizer how to generate the output audio.
+  OutputAudioConfig output_audio_config = 4;
+}
+
+// The message returned from the DetectIntent method.
+message DetectIntentResponse {
+  // Output only. The unique identifier of the response. It can be used to
+  // locate a response in the training example set or for reporting issues.
+  string response_id = 1;
+
+  // The result of the conversational query.
+  QueryResult query_result = 2;
+
+  // The audio data bytes encoded as specified in the request.
+  // Note: The output audio is generated based on the values of default platform
+  // text responses found in the
+  // [`query_result.response_messages`][google.cloud.dialogflow.cx.v3beta1.QueryResult.response_messages] field. If
+  // multiple default text responses exist, they will be concatenated when
+  // generating audio. If no default platform text responses exist, the
+  // generated audio content will be empty.
+  //
+  // In some scenarios, multiple output audio fields may be present in the
+  // response structure. In these cases, only the top-most-level audio output
+  // has content.
+  bytes output_audio = 4;
+
+  // The config used by the speech synthesizer to generate the output audio.
+  OutputAudioConfig output_audio_config = 5;
+}
+
+// The top-level message sent by the client to the
+// [Sessions.StreamingDetectIntent][google.cloud.dialogflow.cx.v3beta1.Sessions.StreamingDetectIntent] method.
+//
+// Multiple request messages should be sent in order:
+//
+// 1.  The first message must contain
+// [session][google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest.session],
+//     [query_input][google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest.query_input] plus optionally
+//     [query_params][google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest.query_params]. If the client
+//     wants to receive an audio response, it should also contain
+//     [output_audio_config][google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest.output_audio_config].
+//
+// 2.  If [query_input][google.cloud.dialogflow.cx.v3beta1.StreamingDetectIntentRequest.query_input] was set to
+//     [query_input.audio.config][google.cloud.dialogflow.cx.v3beta1.AudioInput.config], all subsequent messages
+//     must contain [query_input.audio.audio][google.cloud.dialogflow.cx.v3beta1.AudioInput.audio] to continue with
+//     Speech recognition.
+//     If you decide to rather detect an intent from text
+//     input after you already started Speech recognition, please send a message
+//     with [query_input.text][google.cloud.dialogflow.cx.v3beta1.QueryInput.text].
+//
+//     However, note that:
+//
+//     * Dialogflow will bill you for the audio duration so far.
+//     * Dialogflow discards all Speech recognition results in favor of the
+//       input text.
+//     * Dialogflow will use the language code from the first message.
+//
+// After you sent all input, you must half-close or abort the request stream.
+message StreamingDetectIntentRequest {
+  // The name of the session this query is sent to.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/sessions/<Session ID>`.
+  // It's up to the API caller to choose an appropriate `Session ID`. It can be
+  // a random number or some type of session identifiers (preferably hashed).
+  // The length of the `Session ID` must not exceed 36 characters.
+  // Note: session must be set in the first request.
+  string session = 1 [(google.api.resource_reference) = {
+                        type: "dialogflow.googleapis.com/Session"
+                      }];
+
+  // The parameters of this query.
+  QueryParameters query_params = 2;
+
+  // Required. The input specification.
+  QueryInput query_input = 3 [(google.api.field_behavior) = REQUIRED];
+
+  // Instructs the speech synthesizer how to generate the output audio.
+  OutputAudioConfig output_audio_config = 4;
+}
+
+// The top-level message returned from the `StreamingDetectIntent` method.
+//
+// Multiple response messages can be returned in order:
+//
+// 1.  If the input was set to streaming audio, the first one or more messages
+//     contain `recognition_result`. Each `recognition_result` represents a more
+//     complete transcript of what the user said. The last `recognition_result`
+//     has `is_final` set to `true`.
+//
+// 2.  The last message contains `detect_intent_response`.
+message StreamingDetectIntentResponse {
+  // The output response.
+  oneof response {
+    // The result of speech recognition.
+    StreamingRecognitionResult recognition_result = 1;
+
+    // The response from detect intent.
+    DetectIntentResponse detect_intent_response = 2;
+  }
+}
+
+// Contains a speech recognition result corresponding to a portion of the audio
+// that is currently being processed or an indication that this is the end
+// of the single requested utterance.
+//
+// Example:
+//
+// 1.  transcript: "tube"
+//
+// 2.  transcript: "to be a"
+//
+// 3.  transcript: "to be"
+//
+// 4.  transcript: "to be or not to be"
+//     is_final: true
+//
+// 5.  transcript: " that's"
+//
+// 6.  transcript: " that is"
+//
+// 7.  message_type: `END_OF_SINGLE_UTTERANCE`
+//
+// 8.  transcript: " that is the question"
+//     is_final: true
+//
+// Only two of the responses contain final results (#4 and #8 indicated by
+// `is_final: true`). Concatenating these generates the full transcript: "to be
+// or not to be that is the question".
+//
+// In each response we populate:
+//
+// *  for `TRANSCRIPT`: `transcript` and possibly `is_final`.
+//
+// *  for `END_OF_SINGLE_UTTERANCE`: only `message_type`.
+message StreamingRecognitionResult {
+  // Type of the response message.
+  enum MessageType {
+    // Not specified. Should never be used.
+    MESSAGE_TYPE_UNSPECIFIED = 0;
+
+    // Message contains a (possibly partial) transcript.
+    TRANSCRIPT = 1;
+
+    // Event indicates that the server has detected the end of the user's speech
+    // utterance and expects no additional speech. Therefore, the server will
+    // not process additional audio (although it may subsequently return
+    // additional results). The client should stop sending additional audio
+    // data, half-close the gRPC connection, and wait for any additional results
+    // until the server closes the gRPC connection. This message is only sent if
+    // [`single_utterance`][google.cloud.dialogflow.cx.v3beta1.InputAudioConfig.single_utterance] was set to
+    // `true`, and is not used otherwise.
+    END_OF_SINGLE_UTTERANCE = 2;
+  }
+
+  // Type of the result message.
+  MessageType message_type = 1;
+
+  // Transcript text representing the words that the user spoke.
+  // Populated if and only if `message_type` = `TRANSCRIPT`.
+  string transcript = 2;
+
+  // If `false`, the `StreamingRecognitionResult` represents an
+  // interim result that may change. If `true`, the recognizer will not return
+  // any further hypotheses about this piece of the audio. May only be populated
+  // for `message_type` = `TRANSCRIPT`.
+  bool is_final = 3;
+
+  // The Speech confidence between 0.0 and 1.0 for the current portion of audio.
+  // A higher number indicates an estimated greater likelihood that the
+  // recognized words are correct. The default of 0.0 is a sentinel value
+  // indicating that confidence was not set.
+  //
+  // This field is typically only provided if `is_final` is true and you should
+  // not rely on it being accurate or even set.
+  float confidence = 4;
+
+  // An estimate of the likelihood that the speech recognizer will
+  // not change its guess about this interim recognition result:
+  // * If the value is unspecified or 0.0, Dialogflow didn't compute the
+  //   stability. In particular, Dialogflow will only provide stability for
+  //   `TRANSCRIPT` results with `is_final = false`.
+  // * Otherwise, the value is in (0.0, 1.0] where 0.0 means completely
+  //   unstable and 1.0 means completely stable.
+  float stability = 6;
+
+  // Word-specific information for the words recognized by Speech in
+  // [transcript][google.cloud.dialogflow.cx.v3beta1.StreamingRecognitionResult.transcript]. Populated if and only if `message_type` = `TRANSCRIPT` and
+  // [InputAudioConfig.enable_word_info] is set.
+  repeated SpeechWordInfo speech_word_info = 7;
+
+  // Time offset of the end of this Speech recognition result relative to the
+  // beginning of the audio. Only populated for `message_type` =
+  // `TRANSCRIPT`.
+  google.protobuf.Duration speech_end_offset = 8;
+}
+
+// Represents the parameters of a conversational query.
+message QueryParameters {
+  // The time zone of this conversational query from the [time zone
+  // database](https://www.iana.org/time-zones), e.g., America/New_York,
+  // Europe/Paris. If not provided, the time zone specified in the agent is
+  // used.
+  string time_zone = 1;
+
+  // The geo location of this conversational query.
+  google.type.LatLng geo_location = 2;
+
+  // Additional session entity types to replace or extend developer entity types
+  // with. The entity synonyms apply to all languages and persist for the
+  // session of this query.
+  repeated SessionEntityType session_entity_types = 3;
+
+  // This field can be used to pass custom data into the webhook associated with
+  // the agent. Arbitrary JSON objects are supported.
+  google.protobuf.Struct payload = 4;
+
+  // Additional parameters to be put into [session
+  // parameters][SessionInfo.parameters]. To remove a
+  // parameter from the session, clients should explicitly set the parameter
+  // value to null.
+  //
+  // Depending on your protocol or client library language, this is a
+  // map, associative array, symbol table, dictionary, or JSON object
+  // composed of a collection of (MapKey, MapValue) pairs:
+  //
+  // -   MapKey type: string
+  // -   MapKey value: parameter name
+  // -   MapValue type:
+  //     -   If parameter's entity type is a composite entity: map
+  //     -   Else: string or number, depending on parameter value type
+  // -   MapValue value:
+  //     -   If parameter's entity type is a composite entity:
+  //         map from composite entity property names to property values
+  //     -   Else: parameter value
+  google.protobuf.Struct parameters = 5;
+}
+
+// Represents the query input. It can contain either:
+//
+// 1.  A conversational query in the form of text.
+//
+// 2.  An intent query that specifies which intent to trigger.
+message QueryInput {
+  // Required. The input specification.
+  oneof input {
+    // The natural language text to be processed.
+    TextInput text = 2;
+
+    // The intent to be triggered.
+    IntentInput intent = 3;
+
+    // The natural language speech audio to be processed.
+    AudioInput audio = 5;
+  }
+
+  // Required. The language of the input. See [Language
+  // Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
+  // list of the currently supported language codes. Note that queries in the
+  // same session do not necessarily need to specify the same language.
+  string language_code = 4 [(google.api.field_behavior) = REQUIRED];
+}
+
+// Represents the result of a conversational query.
+message QueryResult {
+  // The original conversational query.
+  oneof query {
+    // If [natural language text][google.cloud.dialogflow.cx.v3beta1.TextInput] was provided as input, this field
+    // will contain a copy of the text.
+    string text = 1;
+
+    // If an [intent][google.cloud.dialogflow.cx.v3beta1.IntentInput] was provided as input, this field will
+    // contain a copy of the intent identifier.
+    string trigger_intent = 11;
+
+    // If [natural language speech audio][google.cloud.dialogflow.cx.v3beta1.AudioInput] was provided as input,
+    // this field will contain the trascript for the audio.
+    string transcript = 12;
+
+    // If an [event][google.cloud.dialogflow.cx.v3beta1.EventInput] was provided as input, this field will contain
+    // the name of the event.
+    string trigger_event = 14;
+  }
+
+  // The language that was triggered during intent detection.
+  // See [Language
+  // Support](https://cloud.google.com/dialogflow/docs/reference/language)
+  // for a list of the currently supported language codes.
+  string language_code = 2;
+
+  // The collected [session parameters][google.cloud.dialogflow.cx.v3beta1.SessionInfo.parameters].
+  //
+  // Depending on your protocol or client library language, this is a
+  // map, associative array, symbol table, dictionary, or JSON object
+  // composed of a collection of (MapKey, MapValue) pairs:
+  //
+  // -   MapKey type: string
+  // -   MapKey value: parameter name
+  // -   MapValue type:
+  //     -   If parameter's entity type is a composite entity: map
+  //     -   Else: string or number, depending on parameter value type
+  // -   MapValue value:
+  //     -   If parameter's entity type is a composite entity:
+  //         map from composite entity property names to property values
+  //     -   Else: parameter value
+  google.protobuf.Struct parameters = 3;
+
+  // The list of rich messages returned to the client. Responses vary from
+  // simple text messages to more sophisticated, structured payloads used
+  // to drive complex logic.
+  repeated ResponseMessage response_messages = 4;
+
+  // The list of webhook call status in the order of call sequence.
+  repeated google.rpc.Status webhook_statuses = 13;
+
+  // The list of webhook payload in [WebhookResponse.payload][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.payload], in
+  // the order of call sequence. If some webhook call fails or doesn't return
+  // any payload, an empty `Struct` would be used instead.
+  repeated google.protobuf.Struct webhook_payloads = 6;
+
+  // The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+  // including but not limited to `name` and `display_name`.
+  Page current_page = 7;
+
+  // The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the conversational query. Some, not all fields
+  // are filled in this message, including but not limited to: `name` and
+  // `display_name`.
+  // This field is deprecated, please use [QueryResult.match][google.cloud.dialogflow.cx.v3beta1.QueryResult.match] instead.
+  Intent intent = 8 [deprecated = true];
+
+  // The intent detection confidence. Values range from 0.0 (completely
+  // uncertain) to 1.0 (completely certain).
+  // This value is for informational purpose only and is only used to
+  // help match the best intent within the classification threshold.
+  // This value may change for the same end-user expression at any time due to a
+  // model retraining or change in implementation.
+  // This field is deprecated, please use [QueryResult.match][google.cloud.dialogflow.cx.v3beta1.QueryResult.match] instead.
+  float intent_detection_confidence = 9 [deprecated = true];
+
+  // Intent match result, could be an intent or an event.
+  Match match = 15;
+
+  // The free-form diagnostic info. For example, this field could contain
+  // webhook call latency. The string keys of the Struct's fields map can change
+  // without notice.
+  google.protobuf.Struct diagnostic_info = 10;
+}
+
+// Represents the natural language text to be processed.
+message TextInput {
+  // Required. The UTF-8 encoded natural language text to be processed. Text length must
+  // not exceed 256 characters.
+  string text = 1 [(google.api.field_behavior) = REQUIRED];
+}
+
+// Represents the intent to trigger programmatically rather than as a result of
+// natural language processing.
+message IntentInput {
+  // Required. The unique identifier of the intent.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/intents/<Intent ID>`.
+  string intent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Intent"
+    }
+  ];
+}
+
+// Represents the natural speech audio to be processed.
+message AudioInput {
+  // Required. Instructs the speech recognizer how to process the speech audio.
+  InputAudioConfig config = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // The natural language speech audio to be processed.
+  // A single request can contain up to 1 minute of speech audio data.
+  // The [transcribed text][google.cloud.dialogflow.cx.v3beta1.QueryResult.transcript] cannot contain more than 256
+  // bytes.
+  //
+  // For non-streaming audio detect intent, both `config` and `audio` must be
+  // provided.
+  // For streaming audio detect intent, `config` must be provided in
+  // the first request and `audio` must be provided in all following requests.
+  bytes audio = 2;
+}
+
+// Represents one match result of [MatchIntent][].
+message Match {
+  // Type of a Match.
+  enum MatchType {
+    // Not specified. Should never be used.
+    MATCH_TYPE_UNSPECIFIED = 0;
+
+    // The query was matched to an intent.
+    INTENT = 1;
+
+    // The query directly triggered an intent.
+    DIRECT_INTENT = 2;
+
+    // The query was used for parameter filling.
+    PARAMETER_FILLING = 3;
+
+    // No match was found for the query.
+    NO_MATCH = 4;
+
+    // Indicates an empty query.
+    NO_INPUT = 5;
+  }
+
+  // The [Intent][google.cloud.dialogflow.cx.v3beta1.Intent] that matched the query. Some, not all fields are filled in
+  // this message, including but not limited to: `name` and `display_name`. Only
+  // filled for [`INTENT`][google.cloud.dialogflow.cx.v3beta1.Match.MatchType] match type.
+  Intent intent = 1;
+
+  // The collection of parameters extracted from the query.
+  //
+  // Depending on your protocol or client library language, this is a
+  // map, associative array, symbol table, dictionary, or JSON object
+  // composed of a collection of (MapKey, MapValue) pairs:
+  //
+  // -   MapKey type: string
+  // -   MapKey value: parameter name
+  // -   MapValue type:
+  //     -   If parameter's entity type is a composite entity: map
+  //     -   Else: string or number, depending on parameter value type
+  // -   MapValue value:
+  //     -   If parameter's entity type is a composite entity:
+  //         map from composite entity property names to property values
+  //     -   Else: parameter value
+  google.protobuf.Struct parameters = 2;
+
+  // Final text input which was matched during MatchIntent. This value can be
+  // different from original input sent in request because of spelling
+  // correction or other processing.
+  string resolved_input = 3;
+
+  // Type of this [Match][google.cloud.dialogflow.cx.v3beta1.Match].
+  MatchType match_type = 4;
+
+  // The confidence of this match. Values range from 0.0 (completely uncertain)
+  // to 1.0 (completely certain).
+  // This value is for informational purpose only and is only used to help match
+  // the best intent within the classification threshold. This value may change
+  // for the same end-user expression at any time due to a model retraining or
+  // change in implementation.
+  float confidence = 5;
+}
+
+// Request of [MatchIntent][].
+message MatchIntentRequest {
+  // Required. The name of the session this query is sent to.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/sessions/<Session ID>`.
+  // It's up to the API caller to choose an appropriate `Session ID`. It can be
+  // a random number or some type of session identifiers (preferably hashed).
+  // The length of the `Session ID` must not exceed 36 characters.
+  string session = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Session"
+    }
+  ];
+
+  // The parameters of this query.
+  QueryParameters query_params = 2;
+
+  // Required. The input specification.
+  QueryInput query_input = 3 [(google.api.field_behavior) = REQUIRED];
+}
+
+// Response of [MatchIntent][].
+message MatchIntentResponse {
+  // The original conversational query.
+  oneof query {
+    // If [natural language text][google.cloud.dialogflow.cx.v3beta1.TextInput] was provided as input, this field
+    // will contain a copy of the text.
+    string text = 1;
+
+    // If an [intent][google.cloud.dialogflow.cx.v3beta1.IntentInput] was provided as input, this field will
+    // contain a copy of the intent identifier.
+    string trigger_intent = 2;
+
+    // If [natural language speech audio][google.cloud.dialogflow.cx.v3beta1.AudioInput] was provided as input,
+    // this field will contain the trascript for the audio.
+    string transcript = 3;
+  }
+
+  // Match results, if more than one, ordered descendingly by the confidence
+  // we have that the particular intent matches the query.
+  repeated Match matches = 4;
+
+  // The current [Page][google.cloud.dialogflow.cx.v3beta1.Page]. Some, not all fields are filled in this message,
+  // including but not limited to `name` and `display_name`.
+  Page current_page = 5;
+}
+
+// Request of [FulfillIntent][]
+message FulfillIntentRequest {
+  // Must be same as the corresponding MatchIntent request, otherwise the
+  // behavior is undefined.
+  MatchIntentRequest match_intent_request = 1;
+
+  // The matched intent/event to fulfill.
+  Match match = 2;
+
+  // Instructs the speech synthesizer how to generate output audio.
+  OutputAudioConfig output_audio_config = 3;
+}
+
+// Response of [FulfillIntent][]
+message FulfillIntentResponse {
+  // Output only. The unique identifier of the response. It can be used to
+  // locate a response in the training example set or for reporting issues.
+  string response_id = 1;
+
+  // The result of the conversational query.
+  QueryResult query_result = 2;
+
+  // The audio data bytes encoded as specified in the request.
+  // Note: The output audio is generated based on the values of default platform
+  // text responses found in the
+  // [`query_result.response_messages`][google.cloud.dialogflow.cx.v3beta1.QueryResult.response_messages] field. If
+  // multiple default text responses exist, they will be concatenated when
+  // generating audio. If no default platform text responses exist, the
+  // generated audio content will be empty.
+  //
+  // In some scenarios, multiple output audio fields may be present in the
+  // response structure. In these cases, only the top-most-level audio output
+  // has content.
+  bytes output_audio = 3;
+
+  // The config used by the speech synthesizer to generate the output audio.
+  OutputAudioConfig output_audio_config = 4;
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto
new file mode 100644
index 000000000..2e4fb4b19
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/session_entity_type.proto
@@ -0,0 +1,226 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.dialogflow.cx.v3beta1;
+
+import "google/api/annotations.proto";
+import "google/api/client.proto";
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
+import "google/cloud/dialogflow/cx/v3beta1/entity_type.proto";
+import "google/protobuf/empty.proto";
+import "google/protobuf/field_mask.proto";
+
+option cc_enable_arenas = true;
+option csharp_namespace = "Google.Cloud.Dialogflow.Cx.V3Beta1";
+option go_package = "google.golang.org/genproto/googleapis/cloud/dialogflow/cx/v3beta1;cx";
+option java_multiple_files = true;
+option java_outer_classname = "SessionEntityTypeProto";
+option java_package = "com.google.cloud.dialogflow.cx.v3beta1";
+option objc_class_prefix = "DF";
+
+// Service for managing [SessionEntityTypes][google.cloud.dialogflow.cx.v3beta1.SessionEntityType].
+service SessionEntityTypes {
+  option (google.api.default_host) = "dialogflow.googleapis.com";
+  option (google.api.oauth_scopes) =
+      "https://www.googleapis.com/auth/cloud-platform,"
+      "https://www.googleapis.com/auth/dialogflow";
+
+  // Returns the list of all session entity types in the specified session.
+  rpc ListSessionEntityTypes(ListSessionEntityTypesRequest) returns (ListSessionEntityTypesResponse) {
+    option (google.api.http) = {
+      get: "/v3beta1/{parent=projects/*/locations/*/agents/*/sessions/*}/entityTypes"
+    };
+    option (google.api.method_signature) = "parent";
+  }
+
+  // Retrieves the specified session entity type.
+  rpc GetSessionEntityType(GetSessionEntityTypeRequest) returns (SessionEntityType) {
+    option (google.api.http) = {
+      get: "/v3beta1/{name=projects/*/locations/*/agents/*/sessions/*/entityTypes/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+
+  // Creates a session entity type.
+  //
+  // If the specified session entity type already exists, overrides the
+  // session entity type.
+  rpc CreateSessionEntityType(CreateSessionEntityTypeRequest) returns (SessionEntityType) {
+    option (google.api.http) = {
+      post: "/v3beta1/{parent=projects/*/locations/*/agents/*/sessions/*}/entityTypes"
+      body: "session_entity_type"
+    };
+    option (google.api.method_signature) = "parent,session_entity_type";
+  }
+
+  // Updates the specified session entity type.
+  rpc UpdateSessionEntityType(UpdateSessionEntityTypeRequest) returns (SessionEntityType) {
+    option (google.api.http) = {
+      patch: "/v3beta1/{session_entity_type.name=projects/*/locations/*/agents/*/sessions/*/entityTypes/*}"
+      body: "session_entity_type"
+    };
+    option (google.api.method_signature) = "session_entity_type,update_mask";
+  }
+
+  // Deletes the specified session entity type.
+  rpc DeleteSessionEntityType(DeleteSessionEntityTypeRequest) returns (google.protobuf.Empty) {
+    option (google.api.http) = {
+      delete: "/v3beta1/{name=projects/*/locations/*/agents/*/sessions/*/entityTypes/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+}
+
+// Session entity types are referred to as **User** entity types and are
+// entities that are built for an individual user such as favorites,
+// preferences, playlists, and so on.
+//
+// You can redefine a session entity type at the session level to extend or
+// replace a [custom entity type][google.cloud.dialogflow.cx.v3beta1.EntityType] at the user session level (we
+// refer to the entity types defined at the agent level as "custom entity
+// types").
+//
+// Note: session entity types apply to all queries, regardless of the language.
+//
+// For more information about entity types, see the [Dialogflow
+// documentation](https://cloud.google.com/dialogflow/docs/entities-overview).
+message SessionEntityType {
+  option (google.api.resource) = {
+    type: "dialogflow.googleapis.com/SessionEntityType"
+    pattern: "projects/{project}/locations/{location}/agents/{agent}/sessions/{session}/entityTypes/{entity_type}"
+    pattern: "projects/{project}/locations/{location}/agents/{agent}/environments/{environment}/sessions/{session}/entityTypes/{entity_type}"
+  };
+
+  // The types of modifications for the session entity type.
+  enum EntityOverrideMode {
+    // Not specified. This value should be never used.
+    ENTITY_OVERRIDE_MODE_UNSPECIFIED = 0;
+
+    // The collection of session entities overrides the collection of entities
+    // in the corresponding custom entity type.
+    ENTITY_OVERRIDE_MODE_OVERRIDE = 1;
+
+    // The collection of session entities extends the collection of entities in
+    // the corresponding custom entity type.
+    //
+    // Note: Even in this override mode calls to `ListSessionEntityTypes`,
+    // `GetSessionEntityType`, `CreateSessionEntityType` and
+    // `UpdateSessionEntityType` only return the additional entities added in
+    // this session entity type. If you want to get the supplemented list,
+    // please call [EntityTypes.GetEntityType][google.cloud.dialogflow.cx.v3beta1.EntityTypes.GetEntityType] on the custom entity type
+    // and merge.
+    ENTITY_OVERRIDE_MODE_SUPPLEMENT = 2;
+  }
+
+  // Required. The unique identifier of the session entity type.
+  // Format: `projects/<Project ID>/locations/<Location
+  // ID>/agents/<Agent ID>/sessions/<Session ID>/entityTypes/<Entity Type
+  // ID>`.
+  string name = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // Required. Indicates whether the additional data should override or supplement the
+  // custom entity type definition.
+  EntityOverrideMode entity_override_mode = 3 [(google.api.field_behavior) = REQUIRED];
+
+  // Required. The collection of entities to override or supplement the custom entity
+  // type.
+  repeated EntityType.Entity entities = 4 [(google.api.field_behavior) = REQUIRED];
+}
+
+// The request message for [SessionEntityTypes.ListSessionEntityTypes][google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes.ListSessionEntityTypes].
+message ListSessionEntityTypesRequest {
+  // Required. The session to list all session entity types from.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/sessions/<Session ID>`.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/SessionEntityType"
+    }
+  ];
+
+  // The maximum number of items to return in a single page. By default 100 and
+  // at most 1000.
+  int32 page_size = 2;
+
+  // The next_page_token value returned from a previous list request.
+  string page_token = 3;
+}
+
+// The response message for [SessionEntityTypes.ListSessionEntityTypes][google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes.ListSessionEntityTypes].
+message ListSessionEntityTypesResponse {
+  // The list of session entity types. There will be a maximum number of items
+  // returned based on the page_size field in the request.
+  repeated SessionEntityType session_entity_types = 1;
+
+  // Token to retrieve the next page of results, or empty if there are no
+  // more results in the list.
+  string next_page_token = 2;
+}
+
+// The request message for [SessionEntityTypes.GetSessionEntityType][google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes.GetSessionEntityType].
+message GetSessionEntityTypeRequest {
+  // Required. The name of the session entity type.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/sessions/<Session ID>/entityTypes/<Entity Type ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/SessionEntityType"
+    }
+  ];
+}
+
+// The request message for [SessionEntityTypes.CreateSessionEntityType][google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes.CreateSessionEntityType].
+message CreateSessionEntityTypeRequest {
+  // Required. The session to create a session entity type for.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/sessions/<Session ID>`.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/SessionEntityType"
+    }
+  ];
+
+  // Required. The session entity type to create.
+  SessionEntityType session_entity_type = 2 [(google.api.field_behavior) = REQUIRED];
+}
+
+// The request message for [SessionEntityTypes.UpdateSessionEntityType][google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes.UpdateSessionEntityType].
+message UpdateSessionEntityTypeRequest {
+  // Required. The session entity type to update.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/sessions/<Session ID>/entityTypes/<Entity Type ID>`.
+  SessionEntityType session_entity_type = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // The mask to control which fields get updated.
+  google.protobuf.FieldMask update_mask = 2;
+}
+
+// The request message for [SessionEntityTypes.DeleteSessionEntityType][google.cloud.dialogflow.cx.v3beta1.SessionEntityTypes.DeleteSessionEntityType].
+message DeleteSessionEntityTypeRequest {
+  // Required. The name of the session entity type to delete.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/sessions/<Session ID>/entityTypes/<Entity Type ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/SessionEntityType"
+    }
+  ];
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
new file mode 100644
index 000000000..a2eed7b4a
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
@@ -0,0 +1,248 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.dialogflow.cx.v3beta1;
+
+import "google/api/annotations.proto";
+import "google/api/client.proto";
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
+import "google/cloud/dialogflow/cx/v3beta1/page.proto";
+import "google/protobuf/empty.proto";
+import "google/protobuf/field_mask.proto";
+
+option cc_enable_arenas = true;
+option csharp_namespace = "Google.Cloud.Dialogflow.Cx.V3Beta1";
+option go_package = "google.golang.org/genproto/googleapis/cloud/dialogflow/cx/v3beta1;cx";
+option java_multiple_files = true;
+option java_outer_classname = "TransitionRouteGroupProto";
+option java_package = "com.google.cloud.dialogflow.cx.v3beta1";
+option objc_class_prefix = "DF";
+
+// Service for managing [TransitionRouteGroups][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+service TransitionRouteGroups {
+  option (google.api.default_host) = "dialogflow.googleapis.com";
+  option (google.api.oauth_scopes) =
+      "https://www.googleapis.com/auth/cloud-platform,"
+      "https://www.googleapis.com/auth/dialogflow";
+
+  // Returns the list of all transition route groups in the specified flow.
+  rpc ListTransitionRouteGroups(ListTransitionRouteGroupsRequest) returns (ListTransitionRouteGroupsResponse) {
+    option (google.api.http) = {
+      get: "/v3beta1/{parent=projects/*/locations/*/agents/*/flows/*}/transitionRouteGroups"
+    };
+    option (google.api.method_signature) = "parent";
+  }
+
+  // Retrieves the specified [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+  rpc GetTransitionRouteGroup(GetTransitionRouteGroupRequest) returns (TransitionRouteGroup) {
+    option (google.api.http) = {
+      get: "/v3beta1/{name=projects/*/locations/*/agents/*/flows/*/transitionRouteGroups/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+
+  // Creates an [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] in the specified flow.
+  rpc CreateTransitionRouteGroup(CreateTransitionRouteGroupRequest) returns (TransitionRouteGroup) {
+    option (google.api.http) = {
+      post: "/v3beta1/{parent=projects/*/locations/*/agents/*/flows/*}/transitionRouteGroups"
+      body: "transition_route_group"
+    };
+    option (google.api.method_signature) = "parent,transition_route_group";
+  }
+
+  // Updates the specified [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+  rpc UpdateTransitionRouteGroup(UpdateTransitionRouteGroupRequest) returns (TransitionRouteGroup) {
+    option (google.api.http) = {
+      patch: "/v3beta1/{transition_route_group.name=projects/*/locations/*/agents/*/flows/*/transitionRouteGroups/*}"
+      body: "transition_route_group"
+    };
+    option (google.api.method_signature) = "transition_route_group,update_mask";
+  }
+
+  // Deletes the specified [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+  rpc DeleteTransitionRouteGroup(DeleteTransitionRouteGroupRequest) returns (google.protobuf.Empty) {
+    option (google.api.http) = {
+      delete: "/v3beta1/{name=projects/*/locations/*/agents/*/flows/*/transitionRouteGroups/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+}
+
+// An TransitionRouteGroup represents a group of
+// [`TransitionRoutes`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] to be used by a [Page][google.cloud.dialogflow.cx.v3beta1.Page].
+message TransitionRouteGroup {
+  option (google.api.resource) = {
+    type: "dialogflow.googleapis.com/TransitionRouteGroup"
+    pattern: "projects/{project}/locations/{location}/agents/{agent}/flows/{flow}/transitionRouteGroups/{transition_route_group}"
+  };
+
+  // The unique identifier of the transition route group.
+  // [TransitionRouteGroups.CreateTransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.CreateTransitionRouteGroup] populates the name
+  // automatically.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>/transitionRouteGroups/<Transition Route Group ID>`.
+  string name = 1;
+
+  // Required. The human-readable name of the transition route group, unique within
+  // the [Agent][google.cloud.dialogflow.cx.v3beta1.Agent]. The display name can be no longer than 30 characters.
+  string display_name = 2 [(google.api.field_behavior) = REQUIRED];
+
+  // Transition routes associated with the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+  // Duplicate transition routes (i.e. using the same
+  // [`intent`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.intent]) are not allowed.
+  //
+  // Note that the [`name`][google.cloud.dialogflow.cx.v3beta1.TransitionRoute.name] field is not used in the
+  // transition route group scope.
+  repeated TransitionRoute transition_routes = 5;
+}
+
+// The request message for [TransitionRouteGroups.ListTransitionRouteGroups][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.ListTransitionRouteGroups].
+message ListTransitionRouteGroupsRequest {
+  // Required. The flow to list all transition route groups for.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>`.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/TransitionRouteGroup"
+    }
+  ];
+
+  // The maximum number of items to return in a single page. By default 100 and
+  // at most 1000.
+  int32 page_size = 2;
+
+  // The next_page_token value returned from a previous list request.
+  string page_token = 3;
+
+  // The language to list transition route groups for. The field
+  // [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+  // [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+  //
+  // If not specified, the agent's default language is used.
+  // [Many
+  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // are supported.
+  // Note: languages must be enabled in the agent before they can be used.
+  string language_code = 4;
+}
+
+// The response message for [TransitionRouteGroups.ListTransitionRouteGroups][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.ListTransitionRouteGroups].
+message ListTransitionRouteGroupsResponse {
+  // The list of transition route groups. There will be a maximum number of
+  // items returned based on the page_size field in the request. The list may in
+  // some cases be empty or contain fewer entries than page_size even if this
+  // isn't the last page.
+  repeated TransitionRouteGroup transition_route_groups = 1;
+
+  // Token to retrieve the next page of results, or empty if there are no more
+  // results in the list.
+  string next_page_token = 2;
+}
+
+// The request message for [TransitionRouteGroups.GetTransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.GetTransitionRouteGroup].
+message GetTransitionRouteGroupRequest {
+  // Required. The name of the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup].
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>/transitionRouteGroups/<Transition Route Group ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/TransitionRouteGroup"
+    }
+  ];
+
+  // The language to list transition route groups for. The field
+  // [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+  // [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+  //
+  // If not specified, the agent's default language is used.
+  // [Many
+  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // are supported.
+  // Note: languages must be enabled in the agent before they can be used.
+  string language_code = 2;
+}
+
+// The request message for [TransitionRouteGroups.CreateTransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.CreateTransitionRouteGroup].
+message CreateTransitionRouteGroupRequest {
+  // Required. The flow to create an [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] for.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>`.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/TransitionRouteGroup"
+    }
+  ];
+
+  // Required. The transition route group to create.
+  TransitionRouteGroup transition_route_group = 2 [(google.api.field_behavior) = REQUIRED];
+
+  // The language to list transition route groups for. The field
+  // [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+  // [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+  //
+  // If not specified, the agent's default language is used.
+  // [Many
+  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // are supported.
+  // Note: languages must be enabled in the agent before they can be used.
+  string language_code = 3;
+}
+
+// The request message for [TransitionRouteGroups.UpdateTransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.UpdateTransitionRouteGroup].
+message UpdateTransitionRouteGroupRequest {
+  // Required. The transition route group to update.
+  TransitionRouteGroup transition_route_group = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // The mask to control which fields get updated.
+  google.protobuf.FieldMask update_mask = 2;
+
+  // The language to list transition route groups for. The field
+  // [`messages`][TransitionRoute.trigger_fulfillment.messages] in
+  // [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
+  //
+  // If not specified, the agent's default language is used.
+  // [Many
+  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // are supported.
+  // Note: languages must be enabled in the agent before they can be used.
+  string language_code = 3;
+}
+
+// The request message for [TransitionRouteGroups.DeleteTransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroups.DeleteTransitionRouteGroup].
+message DeleteTransitionRouteGroupRequest {
+  // Required. The name of the [TransitionRouteGroup][google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup] to delete.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>/transitionRouteGroups/<Transition Route Group ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/TransitionRouteGroup"
+    }
+  ];
+
+  // This field has no effect for transition route group that no page is using.
+  // If the transition route group is referenced by any page:
+  //
+  // *  If `force` is set to false, an error will be returned with message
+  //    indicating pages that reference the transition route group.
+  // *  If `force` is set to true, Dialogflow will remove the transition route
+  //    group, as well as any reference to it.
+  bool force = 2;
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/version.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/version.proto
new file mode 100644
index 000000000..819a6d3cd
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/version.proto
@@ -0,0 +1,261 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.dialogflow.cx.v3beta1;
+
+import "google/api/annotations.proto";
+import "google/api/client.proto";
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
+import "google/cloud/dialogflow/cx/v3beta1/flow.proto";
+import "google/longrunning/operations.proto";
+import "google/protobuf/empty.proto";
+import "google/protobuf/field_mask.proto";
+import "google/protobuf/timestamp.proto";
+
+option cc_enable_arenas = true;
+option csharp_namespace = "Google.Cloud.Dialogflow.Cx.V3Beta1";
+option go_package = "google.golang.org/genproto/googleapis/cloud/dialogflow/cx/v3beta1;cx";
+option java_multiple_files = true;
+option java_outer_classname = "VersionProto";
+option java_package = "com.google.cloud.dialogflow.cx.v3beta1";
+option objc_class_prefix = "DF";
+
+// Service for managing [Versions][google.cloud.dialogflow.cx.v3beta1.Version].
+service Versions {
+  option (google.api.default_host) = "dialogflow.googleapis.com";
+  option (google.api.oauth_scopes) =
+      "https://www.googleapis.com/auth/cloud-platform,"
+      "https://www.googleapis.com/auth/dialogflow";
+
+  // Returns the list of all versions in the specified [Flow][google.cloud.dialogflow.cx.v3beta1.Flow].
+  rpc ListVersions(ListVersionsRequest) returns (ListVersionsResponse) {
+    option (google.api.http) = {
+      get: "/v3beta1/{parent=projects/*/locations/*/agents/*/flows/*}/versions"
+    };
+    option (google.api.method_signature) = "parent";
+  }
+
+  // Retrieves the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+  rpc GetVersion(GetVersionRequest) returns (Version) {
+    option (google.api.http) = {
+      get: "/v3beta1/{name=projects/*/locations/*/agents/*/flows/*/versions/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+
+  // Creates a [Version][google.cloud.dialogflow.cx.v3beta1.Version] in the specified [Flow][google.cloud.dialogflow.cx.v3beta1.Flow].
+  rpc CreateVersion(CreateVersionRequest) returns (google.longrunning.Operation) {
+    option (google.api.http) = {
+      post: "/v3beta1/{parent=projects/*/locations/*/agents/*/flows/*}/versions"
+      body: "version"
+    };
+    option (google.api.method_signature) = "parent,version";
+    option (google.longrunning.operation_info) = {
+      response_type: "Version"
+      metadata_type: "CreateVersionOperationMetadata"
+    };
+  }
+
+  // Updates the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+  rpc UpdateVersion(UpdateVersionRequest) returns (Version) {
+    option (google.api.http) = {
+      patch: "/v3beta1/{version.name=projects/*/locations/*/agents/*/flows/*/versions/*}"
+      body: "version"
+    };
+    option (google.api.method_signature) = "version,update_mask";
+  }
+
+  // Deletes the specified [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+  rpc DeleteVersion(DeleteVersionRequest) returns (google.protobuf.Empty) {
+    option (google.api.http) = {
+      delete: "/v3beta1/{name=projects/*/locations/*/agents/*/flows/*/versions/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+
+  // Loads a specified version to draft version.
+  rpc LoadVersion(LoadVersionRequest) returns (google.longrunning.Operation) {
+    option (google.api.http) = {
+      post: "/v3beta1/{name=projects/*/locations/*/agents/*/flows/*/versions/*}:load"
+      body: "*"
+    };
+    option (google.api.method_signature) = "name";
+    option (google.longrunning.operation_info) = {
+      response_type: "google.protobuf.Empty"
+      metadata_type: "google.protobuf.Struct"
+    };
+  }
+}
+
+// Metadata associated with the long running operation for
+// [Versions.CreateVersion][google.cloud.dialogflow.cx.v3beta1.Versions.CreateVersion].
+message CreateVersionOperationMetadata {
+  // Name of the created version.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>/versions/<Version ID>`.
+  string version = 1 [(google.api.resource_reference) = {
+                        type: "dialogflow.googleapis.com/Version"
+                      }];
+}
+
+// Represents a version of a flow.
+message Version {
+  option (google.api.resource) = {
+    type: "dialogflow.googleapis.com/Version"
+    pattern: "projects/{project}/locations/{location}/agents/{agent}/flows/{flow}/versions/{version}"
+  };
+
+  // The state of the version.
+  enum State {
+    // Not specified. This value is not used.
+    STATE_UNSPECIFIED = 0;
+
+    // Version is not ready to serve (e.g. training is running).
+    RUNNING = 1;
+
+    // Training has succeeded and this version is ready to serve.
+    SUCCEEDED = 2;
+
+    // Version training failed.
+    FAILED = 3;
+  }
+
+  // Format: projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>/versions/<Version ID>. Version ID is a self-increasing
+  // number generated by Dialogflow upon version creation.
+  string name = 1;
+
+  // Required. The human-readable name of the version. Limit of 64 characters.
+  string display_name = 2 [(google.api.field_behavior) = REQUIRED];
+
+  // The description of the version. The maximum length is 500 characters. If
+  // exceeded, the request is rejected.
+  string description = 3;
+
+  // Output only. The NLU settings of the flow at version creation.
+  NluSettings nlu_settings = 4 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // Output only. Create time of the version.
+  google.protobuf.Timestamp create_time = 5 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // Output only. The state of this version. This field is read-only and cannot be set by
+  // create and update methods.
+  State state = 6 [(google.api.field_behavior) = OUTPUT_ONLY];
+}
+
+// The request message for [Versions.ListVersions][google.cloud.dialogflow.cx.v3beta1.Versions.ListVersions].
+message ListVersionsRequest {
+  // Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to list all versions for.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>`.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/Version"
+    }
+  ];
+
+  // The maximum number of items to return in a single page. By default 20 and
+  // at most 100.
+  int32 page_size = 2;
+
+  // The next_page_token value returned from a previous list request.
+  string page_token = 3;
+}
+
+// The response message for [Versions.ListVersions][google.cloud.dialogflow.cx.v3beta1.Versions.ListVersions].
+message ListVersionsResponse {
+  // A list of versions. There will be a maximum number of items returned based
+  // on the page_size field in the request. The list may in some cases be empty
+  // or contain fewer entries than page_size even if this isn't the last page.
+  repeated Version versions = 1;
+
+  // Token to retrieve the next page of results, or empty if there are no more
+  // results in the list.
+  string next_page_token = 2;
+}
+
+// The request message for [Versions.GetVersion][google.cloud.dialogflow.cx.v3beta1.Versions.GetVersion].
+message GetVersionRequest {
+  // Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version].
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>/versions/<Version ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Version"
+    }
+  ];
+}
+
+// The request message for [Versions.CreateVersion][google.cloud.dialogflow.cx.v3beta1.Versions.CreateVersion].
+message CreateVersionRequest {
+  // Required. The [Flow][google.cloud.dialogflow.cx.v3beta1.Flow] to create an [Version][google.cloud.dialogflow.cx.v3beta1.Version] for.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>`.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/Version"
+    }
+  ];
+
+  // Required. The version to create.
+  Version version = 2 [(google.api.field_behavior) = REQUIRED];
+}
+
+// The request message for [Versions.UpdateVersion][google.cloud.dialogflow.cx.v3beta1.Versions.UpdateVersion].
+message UpdateVersionRequest {
+  // Required. The version to update.
+  Version version = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // Required. The mask to control which fields get updated. Currently only `description`
+  // and `display_name` can be updated.
+  google.protobuf.FieldMask update_mask = 2 [(google.api.field_behavior) = REQUIRED];
+}
+
+// The request message for [Versions.DeleteVersion][google.cloud.dialogflow.cx.v3beta1.Versions.DeleteVersion].
+message DeleteVersionRequest {
+  // Required. The name of the [Version][google.cloud.dialogflow.cx.v3beta1.Version] to delete.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>/versions/<Version ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Version"
+    }
+  ];
+}
+
+// The request message for [Versions.LoadVersion][google.cloud.dialogflow.cx.v3beta1.Versions.LoadVersion].
+message LoadVersionRequest {
+  // Required. The [Version][google.cloud.dialogflow.cx.v3beta1.Version] to be loaded to draft version.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>/versions/<Version ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Version"
+    }
+  ];
+
+  // This field is used to prevent accidental overwrite of other agent resources
+  // in the draft version, which can potentially impact other flow's behavior.
+  // If `allow_override_agent_resources` is false, conflicted agent-level
+  // resources will not be overridden (i.e. intents, entities, webhooks).
+  bool allow_override_agent_resources = 2;
+}
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/webhook.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/webhook.proto
new file mode 100644
index 000000000..ff5654742
--- /dev/null
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/webhook.proto
@@ -0,0 +1,430 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.dialogflow.cx.v3beta1;
+
+import "google/api/annotations.proto";
+import "google/api/client.proto";
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
+import "google/cloud/dialogflow/cx/v3beta1/response_message.proto";
+import "google/protobuf/duration.proto";
+import "google/protobuf/empty.proto";
+import "google/protobuf/field_mask.proto";
+import "google/protobuf/struct.proto";
+
+option cc_enable_arenas = true;
+option csharp_namespace = "Google.Cloud.Dialogflow.Cx.V3Beta1";
+option go_package = "google.golang.org/genproto/googleapis/cloud/dialogflow/cx/v3beta1;cx";
+option java_multiple_files = true;
+option java_outer_classname = "WebhookProto";
+option java_package = "com.google.cloud.dialogflow.cx.v3beta1";
+option objc_class_prefix = "DF";
+
+// Service for managing [Webhooks][google.cloud.dialogflow.cx.v3beta1.Webhook].
+service Webhooks {
+  option (google.api.default_host) = "dialogflow.googleapis.com";
+  option (google.api.oauth_scopes) =
+      "https://www.googleapis.com/auth/cloud-platform,"
+      "https://www.googleapis.com/auth/dialogflow";
+
+  // Returns the list of all webhooks in the specified agent.
+  rpc ListWebhooks(ListWebhooksRequest) returns (ListWebhooksResponse) {
+    option (google.api.http) = {
+      get: "/v3beta1/{parent=projects/*/locations/*/agents/*}/webhooks"
+    };
+    option (google.api.method_signature) = "parent";
+  }
+
+  // Retrieves the specified webhook.
+  rpc GetWebhook(GetWebhookRequest) returns (Webhook) {
+    option (google.api.http) = {
+      get: "/v3beta1/{name=projects/*/locations/*/agents/*/webhooks/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+
+  // Creates a webhook in the specified agent.
+  rpc CreateWebhook(CreateWebhookRequest) returns (Webhook) {
+    option (google.api.http) = {
+      post: "/v3beta1/{parent=projects/*/locations/*/agents/*}/webhooks"
+      body: "webhook"
+    };
+    option (google.api.method_signature) = "parent,webhook";
+  }
+
+  // Updates the specified webhook.
+  rpc UpdateWebhook(UpdateWebhookRequest) returns (Webhook) {
+    option (google.api.http) = {
+      patch: "/v3beta1/{webhook.name=projects/*/locations/*/agents/*/webhooks/*}"
+      body: "webhook"
+    };
+    option (google.api.method_signature) = "webhook,update_mask";
+  }
+
+  // Deletes the specified webhook.
+  rpc DeleteWebhook(DeleteWebhookRequest) returns (google.protobuf.Empty) {
+    option (google.api.http) = {
+      delete: "/v3beta1/{name=projects/*/locations/*/agents/*/webhooks/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+}
+
+// Webhooks host the developer's business logic. During a session, webhooks
+// allow the developer to use the data extracted by Dialogflow's natural
+// language processing to generate dynamic responses, validate collected data,
+// or trigger actions on the backend.
+message Webhook {
+  option (google.api.resource) = {
+    type: "dialogflow.googleapis.com/Webhook"
+    pattern: "projects/{project}/locations/{location}/agents/{agent}/webhooks/{webhook}"
+  };
+
+  // Represents configuration for a generic web service.
+  message GenericWebService {
+    // Required. The webhook URI for receiving POST requests. It must use https protocol.
+    string uri = 1 [(google.api.field_behavior) = REQUIRED];
+
+    // The user name for HTTP Basic authentication.
+    string username = 2 [deprecated = true];
+
+    // The password for HTTP Basic authentication.
+    string password = 3 [deprecated = true];
+
+    // The HTTP request headers to send together with webhook
+    // requests.
+    map<string, string> request_headers = 4;
+  }
+
+  // The unique identifier of the webhook.
+  // Required for the [Webhooks.UpdateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.UpdateWebhook] method.
+  // [Webhooks.CreateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.CreateWebhook] populates the name automatically.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/webhooks/<Webhook ID>`.
+  string name = 1;
+
+  // Required. The human-readable name of the webhook, unique within the agent.
+  string display_name = 2 [(google.api.field_behavior) = REQUIRED];
+
+  // Required. The webhook configuration.
+  oneof webhook {
+    // Configuration for a generic web service.
+    GenericWebService generic_web_service = 4;
+  }
+
+  // Webhook execution timeout. Execution is considered failed if Dialogflow
+  // doesn't receive a response from webhook at the end of the timeout period.
+  // Defaults to 5 seconds, maximum allowed timeout is 30 seconds.
+  google.protobuf.Duration timeout = 6;
+
+  // Indicates whether the webhook is disabled.
+  bool disabled = 5;
+}
+
+// The request message for [Webhooks.ListWebhooks][google.cloud.dialogflow.cx.v3beta1.Webhooks.ListWebhooks].
+message ListWebhooksRequest {
+  // Required. The agent to list all webhooks for.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent ID>`.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/Webhook"
+    }
+  ];
+
+  // The maximum number of items to return in a single page. By default 100 and
+  // at most 1000.
+  int32 page_size = 2;
+
+  // The next_page_token value returned from a previous list request.
+  string page_token = 3;
+}
+
+// The response message for [Webhooks.ListWebhooks][google.cloud.dialogflow.cx.v3beta1.Webhooks.ListWebhooks].
+message ListWebhooksResponse {
+  // The list of webhooks. There will be a maximum number of items returned
+  // based on the page_size field in the request.
+  repeated Webhook webhooks = 1;
+
+  // Token to retrieve the next page of results, or empty if there are no more
+  // results in the list.
+  string next_page_token = 2;
+}
+
+// The request message for [Webhooks.GetWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.GetWebhook].
+message GetWebhookRequest {
+  // Required. The name of the webhook.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/webhooks/<Webhook ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Webhook"
+    }
+  ];
+}
+
+// The request message for [Webhooks.CreateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.CreateWebhook].
+message CreateWebhookRequest {
+  // Required. The agent to create a webhook for.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent ID>`.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/Webhook"
+    }
+  ];
+
+  // Required. The webhook to create.
+  Webhook webhook = 2 [(google.api.field_behavior) = REQUIRED];
+}
+
+// The request message for [Webhooks.UpdateWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.UpdateWebhook].
+message UpdateWebhookRequest {
+  // Required. The webhook to update.
+  Webhook webhook = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // The mask to control which fields get updated. If the mask is not present,
+  // all fields will be updated.
+  google.protobuf.FieldMask update_mask = 2;
+}
+
+// The request message for [Webhooks.DeleteWebhook][google.cloud.dialogflow.cx.v3beta1.Webhooks.DeleteWebhook].
+message DeleteWebhookRequest {
+  // Required. The name of the webhook to delete.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/webhooks/<Webhook ID>`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Webhook"
+    }
+  ];
+}
+
+// The request message for a webhook call.
+message WebhookRequest {
+  // Represents fulfillment information communicated to the webhook.
+  message FulfillmentInfo {
+    // Always present. The tag used to identify which fulfillment is being
+    // called.
+    string tag = 1;
+  }
+
+  // Represents intent information communicated to the webhook.
+  message IntentInfo {
+    // Represents a value for an intent parameter.
+    message IntentParameterValue {
+      // Always present. Original text value extracted from user utterance.
+      string original_value = 1;
+
+      // Always present. Structured value for the parameter extracted from user
+      // utterance.
+      google.protobuf.Value resolved_value = 2;
+    }
+
+    // Always present. The unique identifier of the last matched
+    // [intent][google.cloud.dialogflow.cx.v3beta1.Intent]. Format: `projects/<Project ID>/locations/<Location
+    // ID>/agents/<Agent ID>/intents/<Intent ID>`.
+    string last_matched_intent = 1 [(google.api.resource_reference) = {
+                                      type: "dialogflow.googleapis.com/Intent"
+                                    }];
+
+    // Parameters identified as a result of intent matching. This is a map of
+    // the name of the identified parameter to the value of the parameter
+    // identified from the user's utterance. All parameters defined in the
+    // matched intent that are identified will be surfaced here.
+    map<string, IntentParameterValue> parameters = 2;
+  }
+
+  // Always present. The unique identifier of the [DetectIntentResponse][google.cloud.dialogflow.cx.v3beta1.DetectIntentResponse] that
+  // will be returned to the API caller.
+  string detect_intent_response_id = 1;
+
+  // Always present. Information about the fulfillment that triggered this
+  // webhook call.
+  FulfillmentInfo fulfillment_info = 6;
+
+  // Information about the last matched intent.
+  IntentInfo intent_info = 3;
+
+  // Information about page status.
+  PageInfo page_info = 4;
+
+  // Information about session status.
+  SessionInfo session_info = 5;
+
+  // The list of rich message responses to present to the user. Webhook can
+  // choose to append or replace this list in
+  // [WebhookResponse.fulfillment_response][google.cloud.dialogflow.cx.v3beta1.WebhookResponse.fulfillment_response];
+  repeated ResponseMessage messages = 7;
+
+  // Custom data set in [QueryParameters.payload][google.cloud.dialogflow.cx.v3beta1.QueryParameters.payload].
+  google.protobuf.Struct payload = 8;
+}
+
+// The response message for a webhook call.
+message WebhookResponse {
+  // Represents a fulfillment response to the user.
+  message FulfillmentResponse {
+    // Defines merge behavior for `messages`.
+    enum MergeBehavior {
+      // Not specified. `APPEND` will be used.
+      MERGE_BEHAVIOR_UNSPECIFIED = 0;
+
+      // `messages` will be appended to the list of messages waiting to be sent
+      // to the user.
+      APPEND = 1;
+
+      // `messages` will replace the list of messages waiting to be sent to the
+      // user.
+      REPLACE = 2;
+    }
+
+    // The list of rich message responses to present to the user.
+    repeated ResponseMessage messages = 1;
+
+    // Merge behavior for `messages`.
+    MergeBehavior merge_behavior = 2;
+  }
+
+  // The fulfillment response to send to the user. This field can be omitted by
+  // the webhook if it does not intend to send any response to the user.
+  FulfillmentResponse fulfillment_response = 1;
+
+  // Information about page status. This field can be omitted by the webhook if
+  // it does not intend to modify page status.
+  PageInfo page_info = 2;
+
+  // Information about session status. This field can be omitted by the webhook
+  // if it does not intend to modify session status.
+  SessionInfo session_info = 3;
+
+  // Value to append directly to [QueryResult.webhook_payloads][google.cloud.dialogflow.cx.v3beta1.QueryResult.webhook_payloads].
+  google.protobuf.Struct payload = 4;
+
+  // The target to transition to. This can be set optionally to indicate an
+  // immediate transition to a different page in the same host flow, or a
+  // different flow in the same agent.
+  oneof transition {
+    // The target page to transition to.
+    // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+    // ID>/flows/<Flow ID>/pages/<Page ID>`.
+    string target_page = 5 [(google.api.resource_reference) = {
+                              type: "dialogflow.googleapis.com/Page"
+                            }];
+
+    // The target flow to transition to.
+    // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+    // ID>/flows/<Flow ID>`.
+    string target_flow = 6 [(google.api.resource_reference) = {
+                              type: "dialogflow.googleapis.com/Flow"
+                            }];
+  }
+}
+
+// Represents page information communicated to and from the webhook.
+message PageInfo {
+  // Represents form information.
+  message FormInfo {
+    // Represents parameter information.
+    message ParameterInfo {
+      // Represents the state of a parameter.
+      enum ParameterState {
+        // Not specified. This value should be never used.
+        PARAMETER_STATE_UNSPECIFIED = 0;
+
+        // Indicates that the parameter does not have a value.
+        EMPTY = 1;
+
+        // Indicates that the parameter value is invalid. This field can be used
+        // by the webhook to invalidate the parameter and ask the server to
+        // collect it from the user again.
+        INVALID = 2;
+
+        // Indicates that the parameter has a value.
+        FILLED = 3;
+      }
+
+      // Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Required for
+      // [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+      // The human-readable name of the parameter, unique within the form. This
+      // field cannot be modified by the webhook.
+      string display_name = 1;
+
+      // Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+      // Indicates whether the parameter is required. Optional parameters will
+      // not trigger prompts; however, they are filled if the user specifies
+      // them. Required parameters must be filled before form filling concludes.
+      bool required = 2;
+
+      // Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Required for
+      // [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The state of the parameter. This field can be set
+      // to [INVALID][google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState.INVALID] by
+      // the webhook to invalidate the parameter; other values set by the
+      // webhook will be ignored.
+      ParameterState state = 3;
+
+      // Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+      // The value of the parameter. This field can be set by the webhook to
+      // change the parameter value.
+      google.protobuf.Value value = 4;
+
+      // Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+      // Indicates if the parameter value was just collected on the last
+      // conversation turn.
+      bool just_collected = 5;
+    }
+
+    // Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+    // The parameters contained in the form. Note that the webhook cannot add
+    // or remove any form parameter.
+    repeated ParameterInfo parameter_info = 2;
+  }
+
+  // Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+  // The unique identifier of the current page.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>/pages/<Page ID>`.
+  string current_page = 1 [(google.api.resource_reference) = {
+                             type: "dialogflow.googleapis.com/Page"
+                           }];
+
+  // Optional for both [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest] and [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+  // Information about the form.
+  FormInfo form_info = 3;
+}
+
+// Represents session information communicated to and from the webhook.
+message SessionInfo {
+  // Always present for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Ignored for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+  // The unique identifier of the [session][google.cloud.dialogflow.cx.v3beta1.DetectIntentRequest.session]. This
+  // field can be used by the webhook to identify a user.
+  // Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/sessions/<Session ID>`.
+  string session = 1 [(google.api.resource_reference) = {
+                        type: "dialogflow.googleapis.com/Session"
+                      }];
+
+  // Optional for [WebhookRequest][google.cloud.dialogflow.cx.v3beta1.WebhookRequest]. Optional for [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse].
+  // All parameters collected from forms and intents during the session.
+  // Parameters can be created, updated, or removed by the webhook. To remove a
+  // parameter from the session, the webhook should explicitly set the parameter
+  // value to null in [WebhookResponse][google.cloud.dialogflow.cx.v3beta1.WebhookResponse]. The map is keyed by parameters'
+  // display names.
+  map<string, google.protobuf.Value> parameters = 2;
+}
diff --git a/renovate.json b/renovate.json
new file mode 100644
index 000000000..22246dae7
--- /dev/null
+++ b/renovate.json
@@ -0,0 +1,81 @@
+{
+  "extends": [
+    ":separateMajorReleases",
+    ":combinePatchMinorReleases",
+    ":ignoreUnstable",
+    ":prImmediately",
+    ":updateNotScheduled",
+    ":automergeDisabled",
+    ":ignoreModulesAndTests",
+    ":maintainLockFilesDisabled",
+    ":autodetectPinVersions"
+  ],
+  "packageRules": [
+    {
+      "packagePatterns": [
+        "^com.google.guava:"
+      ],
+      "versionScheme": "docker"
+    },
+    {
+      "packagePatterns": [
+        "^com.google.api:gax",
+        "^com.google.auth:",
+        "^com.google.cloud:google-cloud-core",
+        "^io.grpc:",
+        "^com.google.guava:"
+      ],
+      "groupName": "core dependencies"
+    },
+    {
+      "packagePatterns": [
+        "^com.google.http-client:",
+        "^com.google.oauth-client:",
+        "^com.google.api-client:"
+      ],
+      "groupName": "core transport dependencies"
+    },
+    {
+      "packagePatterns": [
+        "*"
+      ],
+      "semanticCommitType": "deps",
+      "semanticCommitScope": null
+    },
+    {
+      "packagePatterns": [
+        "^org.apache.maven",
+        "^org.jacoco:",
+        "^org.codehaus.mojo:",
+        "^org.sonatype.plugins:",
+        "^com.coveo:",
+        "^com.google.cloud:google-cloud-shared-config"
+      ],
+      "semanticCommitType": "build",
+      "semanticCommitScope": "deps"
+    },
+    {
+      "packagePatterns": [
+        "^com.google.cloud:google-cloud-dialogflow-cx",
+        "^com.google.cloud:libraries-bom",
+        "^com.google.cloud.samples:shared-configuration"
+      ],
+      "semanticCommitType": "chore",
+      "semanticCommitScope": "deps"
+    },
+    {
+      "packagePatterns": [
+        "^com.google.cloud:google-cloud-"
+      ],
+      "ignoreUnstable": false
+    },
+    {
+      "packagePatterns": [
+        "^com.fasterxml.jackson.core"
+      ],
+      "groupName": "jackson dependencies"
+    }
+  ],
+  "semanticCommits": true,
+  "masterIssue": true
+}
\ No newline at end of file
diff --git a/samples/install-without-bom/pom.xml b/samples/install-without-bom/pom.xml
new file mode 100644
index 000000000..2d990040d
--- /dev/null
+++ b/samples/install-without-bom/pom.xml
@@ -0,0 +1,84 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.google.cloud</groupId>
+  <artifactId>dialogflow-cx-install-without-bom</artifactId>
+  <packaging>jar</packaging>
+  <name>Google Dialogflow CX Install Without Bom</name>
+  <url>https://github.com/googleapis/java-dialogflow-cx</url>
+
+  <!--
+    The parent pom defines common style checks and testing strategies for our samples.
+    Removing or replacing it should not affect the execution of the samples in anyway.
+  -->
+  <parent>
+    <groupId>com.google.cloud.samples</groupId>
+    <artifactId>shared-configuration</artifactId>
+    <version>1.0.12</version>
+  </parent>
+
+  <properties>
+    <maven.compiler.target>1.8</maven.compiler.target>
+    <maven.compiler.source>1.8</maven.compiler.source>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+
+
+  <dependencies>
+    <!-- [START dialogflow-cx_install_without_bom] -->
+    <dependency>
+      <groupId>com.google.cloud</groupId>
+      <artifactId>google-cloud-dialogflow-cx</artifactId>
+      <version>0.0.0</version>
+    </dependency>
+    <!-- [END dialogflow-cx_install_without_bom] -->
+
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.13</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.google.truth</groupId>
+      <artifactId>truth</artifactId>
+      <version>1.0.1</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <!-- compile and run all snippet tests -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>build-helper-maven-plugin</artifactId>
+        <version>3.1.0</version>
+        <executions>
+          <execution>
+            <id>add-snippets-source</id>
+            <goals>
+              <goal>add-source</goal>
+            </goals>
+            <configuration>
+              <sources>
+                <source>../snippets/src/main/java</source>
+              </sources>
+            </configuration>
+          </execution>
+          <execution>
+            <id>add-snippets-tests</id>
+            <goals>
+              <goal>add-test-source</goal>
+            </goals>
+            <configuration>
+              <sources>
+                <source>../snippets/src/test/java</source>
+              </sources>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+</project>
diff --git a/samples/pom.xml b/samples/pom.xml
new file mode 100644
index 000000000..e03a650f9
--- /dev/null
+++ b/samples/pom.xml
@@ -0,0 +1,56 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.google.cloud</groupId>
+  <artifactId>google-cloud-dialogflow-cx-samples</artifactId>
+  <version>0.0.1-SNAPSHOT</version><!-- This artifact should not be released -->
+  <packaging>pom</packaging>
+  <name>Google Dialogflow CX Samples Parent</name>
+  <url>https://github.com/googleapis/java-dialogflow-cx</url>
+  <description>
+    Java idiomatic client for Google Cloud Platform services.
+  </description>
+
+  <!--
+    The parent pom defines common style checks and testing strategies for our samples.
+    Removing or replacing it should not affect the execution of the samples in anyway.
+  -->
+  <parent>
+    <groupId>com.google.cloud.samples</groupId>
+    <artifactId>shared-configuration</artifactId>
+    <version>1.0.18</version>
+  </parent>
+
+  <properties>
+    <maven.compiler.target>1.8</maven.compiler.target>
+    <maven.compiler.source>1.8</maven.compiler.source>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+
+  <modules>
+    <module>install-without-bom</module>
+    <module>snapshot</module>
+    <module>snippets</module>
+  </modules>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-deploy-plugin</artifactId>
+        <version>2.8.2</version>
+        <configuration>
+          <skip>true</skip>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.sonatype.plugins</groupId>
+        <artifactId>nexus-staging-maven-plugin</artifactId>
+        <version>1.6.8</version>
+        <configuration>
+          <skipNexusStagingDeployMojo>true</skipNexusStagingDeployMojo>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+</project> 
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
new file mode 100644
index 000000000..f795a2411
--- /dev/null
+++ b/samples/snapshot/pom.xml
@@ -0,0 +1,83 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.google.cloud</groupId>
+  <artifactId>dialogflow-cx-snapshot</artifactId>
+  <packaging>jar</packaging>
+  <name>Google Dialogflow CX Snapshot Samples</name>
+  <url>https://github.com/googleapis/java-dialogflow-cx</url>
+
+  <!--
+    The parent pom defines common style checks and testing strategies for our samples.
+    Removing or replacing it should not affect the execution of the samples in anyway.
+  -->
+  <parent>
+    <groupId>com.google.cloud.samples</groupId>
+    <artifactId>shared-configuration</artifactId>
+    <version>1.0.12</version>
+  </parent>
+
+  <properties>
+    <maven.compiler.target>1.8</maven.compiler.target>
+    <maven.compiler.source>1.8</maven.compiler.source>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+
+  <!-- {x-version-update-start::current} -->
+  <dependencies>
+    <dependency>
+      <groupId>com.google.cloud</groupId>
+      <artifactId>google-cloud-dialogflow-cx</artifactId>
+      <version>0.0.0</version>
+    </dependency>
+  <!-- {x-version-update-end} -->
+
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.13</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.google.truth</groupId>
+      <artifactId>truth</artifactId>
+      <version>1.0.1</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <!-- compile and run all snippet tests -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>build-helper-maven-plugin</artifactId>
+        <version>3.1.0</version>
+        <executions>
+          <execution>
+            <id>add-snippets-source</id>
+            <goals>
+              <goal>add-source</goal>
+            </goals>
+            <configuration>
+              <sources>
+                <source>../snippets/src/main/java</source>
+              </sources>
+            </configuration>
+          </execution>
+          <execution>
+            <id>add-snippets-tests</id>
+            <goals>
+              <goal>add-test-source</goal>
+            </goals>
+            <configuration>
+              <sources>
+                <source>../snippets/src/test/java</source>
+              </sources>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+</project>
\ No newline at end of file
diff --git a/samples/snippets/pom.xml b/samples/snippets/pom.xml
new file mode 100644
index 000000000..56750e55f
--- /dev/null
+++ b/samples/snippets/pom.xml
@@ -0,0 +1,47 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.google.cloud</groupId>
+  <artifactId>dialogflow-cx-snippets</artifactId>
+  <packaging>jar</packaging>
+  <name>Google Dialogflow CX Snippets</name>
+  <url>https://github.com/googleapis/java-dialogflow-cx</url>
+
+  <!--
+    The parent pom defines common style checks and testing strategies for our samples.
+    Removing or replacing it should not affect the execution of the samples in anyway.
+  -->
+  <parent>
+    <groupId>com.google.cloud.samples</groupId>
+    <artifactId>shared-configuration</artifactId>
+    <version>1.0.12</version>
+  </parent>
+
+  <properties>
+    <maven.compiler.target>1.8</maven.compiler.target>
+    <maven.compiler.source>1.8</maven.compiler.source>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+
+  <dependencies>
+    <!-- TODO: switch to libraries-bom after this artifact is included -->
+    <dependency>
+      <groupId>com.google.cloud</groupId>
+      <artifactId>google-cloud-dialogflow-cx</artifactId>
+      <version>0.0.0</version>
+    </dependency>
+
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.13</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.google.truth</groupId>
+      <artifactId>truth</artifactId>
+      <version>1.0.1</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+</project>
diff --git a/synth.metadata b/synth.metadata
new file mode 100644
index 000000000..b95d5c360
--- /dev/null
+++ b/synth.metadata
@@ -0,0 +1,37 @@
+{
+  "sources": [
+    {
+      "git": {
+        "name": ".",
+        "remote": "sso://devrel/cloud/libraries/java/repo-splitter",
+        "sha": "3c04e9efa0aad6db63fd02cf402018bc9ecedba9"
+      }
+    },
+    {
+      "git": {
+        "name": "googleapis",
+        "remote": "https://github.com/googleapis/googleapis.git",
+        "sha": "457ae33da792c0a799f72c5f494443ebe26186f0",
+        "internalRef": "327031420"
+      }
+    },
+    {
+      "git": {
+        "name": "synthtool",
+        "remote": "https://github.com/googleapis/synthtool.git",
+        "sha": "d3049e66447b44dc10579e461d5e08e0e3838edd"
+      }
+    }
+  ],
+  "destinations": [
+    {
+      "client": {
+        "source": "googleapis",
+        "apiName": "dialogflow-cx",
+        "apiVersion": "v3beta1",
+        "language": "java",
+        "generator": "bazel"
+      }
+    }
+  ]
+}
\ No newline at end of file
diff --git a/synth.py b/synth.py
new file mode 100644
index 000000000..eccc51336
--- /dev/null
+++ b/synth.py
@@ -0,0 +1,32 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""This script is used to synthesize generated parts of this library."""
+
+import synthtool as s
+import synthtool.gcp as gcp
+import synthtool.languages.java as java
+
+service = 'dialogflow-cx'
+versions = ['v3beta1']
+
+for version in versions:
+  java.bazel_library(
+      service=service,
+      version=version,
+      proto_path=f'google/cloud/dialogflow/cx/{version}',
+      bazel_target=f'//google/cloud/dialogflow/cx/{version}:google-cloud-{service}-{version}-java',
+  )
+
+java.common_templates()
\ No newline at end of file
diff --git a/versions.txt b/versions.txt
new file mode 100644
index 000000000..c35a70f83
--- /dev/null
+++ b/versions.txt
@@ -0,0 +1,6 @@
+# Format:
+# module:released-version:current-version
+
+google-cloud-dialogflow-cx:0.0.0:0.0.1-SNAPSHOT
+proto-google-cloud-dialogflow-cx-v3beta1:0.0.0:0.0.1-SNAPSHOT
+grpc-google-cloud-dialogflow-cx-v3beta1:0.0.0:0.0.1-SNAPSHOT
\ No newline at end of file